Publish flutter packages for Android (#1074)

@@ -14,10 +14,11 @@ concurrency:
   cancel-in-progress: true
   cancel-in-progress: true
 
 
 jobs:
 jobs:
-  release_dart:
+  sherpa_onnx_linux:
+    # if: false
     permissions:
     permissions:
       id-token: write # Required for authentication using OIDC
       id-token: write # Required for authentication using OIDC
-    name: Release dart
+    name: sherpa_onnx_linux
     runs-on: ubuntu-latest
     runs-on: ubuntu-latest
 
 
     steps:
     steps:
@@ -31,21 +32,470 @@ jobs:
 
 
       - uses: dart-lang/setup-dart@v1
       - uses: dart-lang/setup-dart@v1
 
 
-      - name: Copy pre-build libs
+      - name: Fix version
         shell: bash
         shell: bash
         run: |
         run: |
-          cd scripts/dart
-          ./release.sh
-          cd ../..
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
 
 
-          mv -v sherpa-onnx/flutter /tmp/to-be-published
+          src_dir=$PWD/flutter/sherpa_onnx_linux
+          pushd $src_dir
+          v="version: $SHERPA_ONNX_VERSION"
+          echo "v: $v"
+          sed -i.bak s"/^version: .*/$v/" ./pubspec.yaml
+          rm *.bak
+          git status
+          git diff
 
 
-          cp -v README.md /tmp/to-be-published
+      - name: Copy extra files
+        shell: bash
+        run: |
+          dst=flutter/sherpa_onnx_linux
+
+          mkdir $dst/example
+
+          cp -v flutter/sherpa_onnx/example/* $dst/example
+          cp -v LICENSE $dst/
+          cp -v CHANGELOG.md $dst/
+
+          git status
+
+      - name: Build sherpa-onnx
+        uses: addnab/docker-run-action@v3
+        with:
+            image: quay.io/pypa/manylinux2014_x86_64
+            options: |
+              --volume ${{ github.workspace }}/:/home/runner/work/sherpa-onnx/sherpa-onnx
+            shell: bash
+            run: |
+              uname -a
+              gcc --version
+              cmake --version
+              cat /etc/*release
+              id
+              pwd
+
+              cd /home/runner/work/sherpa-onnx/sherpa-onnx
+
+              mkdir build
+              cd build
+
+              cmake \
+                -D SHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
+                -D SHERPA_ONNX_ENABLE_TTS=ON \
+                -D CMAKE_BUILD_TYPE=Release \
+                -D BUILD_SHARED_LIBS=ON \
+                -D CMAKE_INSTALL_PREFIX=./install \
+                -D SHERPA_ONNX_ENABLE_JNI=OFF \
+                -D SHERPA_ONNX_ENABLE_BINARY=OFF \
+                ..
+
+              make -j2
+              make install
+
+              ls -lh ./install/lib
+
+      - name: Copy pre-built libs
+        shell: bash
+        run: |
+          cp -v build/install/lib/lib*.so* flutter/sherpa_onnx_linux/linux/
+          pushd flutter/sherpa_onnx_linux/linux/
+
+          rm libonnxruntime.so
+          ln -s libonnxruntime.so.* ./libonnxruntime.so
+
+          popd
+
+          mv -v flutter/sherpa_onnx_linux /tmp/to_be_published
+
+          ls -lh /tmp/to_be_published/linux
+
+      - name: Release
+        shell: bash
+        run: |
+          cd /tmp/to_be_published
+          flutter pub get
+          flutter pub publish --dry-run
+          flutter pub publish --force
+
+  sherpa_onnx_macos:
+    # if: false
+    permissions:
+      id-token: write # Required for authentication using OIDC
+    name: sherpa_onnx_macos
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-flutter-release-package
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - uses: dart-lang/setup-dart@v1
+
+      - name: Fix version
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          src_dir=$PWD/flutter/sherpa_onnx_macos
+          pushd $src_dir
+          v="version: $SHERPA_ONNX_VERSION"
+          echo "v: $v"
+          sed -i.bak s"/^version: .*/$v/" ./pubspec.yaml
+          rm *.bak
+          git status
+          git diff
+
+      - name: Copy extra files
+        shell: bash
+        run: |
+          dst=flutter/sherpa_onnx_macos
+
+          mkdir $dst/example
+
+          cp -v flutter/sherpa_onnx/example/* $dst/example
+          cp -v LICENSE $dst/
+          cp -v CHANGELOG.md $dst/
+
+          git status
+
+      - name: Configure CMake
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          mkdir build
+          cd build
+          cmake \
+            -D SHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
+            -D SHERPA_ONNX_ENABLE_TTS=ON \
+            -D CMAKE_BUILD_TYPE=Release \
+            -D BUILD_SHARED_LIBS=ON \
+            -D CMAKE_INSTALL_PREFIX=./install \
+            -D SHERPA_ONNX_ENABLE_JNI=OFF \
+            -D SHERPA_ONNX_ENABLE_BINARY=OFF \
+            -D CMAKE_OSX_ARCHITECTURES="x86_64;arm64" \
+            ..
+
+      - name: Build sherpa-onnx
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          cd build
+          make -j2 install
+
+          ls -lh install/lib/libsherpa-onnx-core.dylib
+          file install/lib/libsherpa-onnx-core.dylib
+
+      - name: Copy pre-built libs
+        shell: bash
+        run: |
+          cp -v build/install/lib/lib*.dylib* flutter/sherpa_onnx_macos/macos/
+
+
+          mv -v flutter/sherpa_onnx_macos /tmp/to_be_published
+
+          ls -lh /tmp/to_be_published/macos
+
+          pushd /tmp/to_be_published/macos
+
+          rm libonnxruntime.dylib
+
+          ls -lh
+
+          popd
+
+      - name: Release
+        shell: bash
+        run: |
+          cd /tmp/to_be_published
+          du -h -d1 .
+          flutter pub get
+          flutter pub publish --dry-run
+          flutter pub publish --force
+
+  sherpa_onnx_windows:
+    # if: false
+    permissions:
+      id-token: write # Required for authentication using OIDC
+    name: sherpa_onnx_windows
+    runs-on: windows-2019
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Fix version
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          src_dir=$PWD/flutter/sherpa_onnx_windows
+          pushd $src_dir
+          v="version: $SHERPA_ONNX_VERSION"
+          echo "v: $v"
+          sed -i.bak s"/^version: .*/$v/" ./pubspec.yaml
+          rm *.bak
+          git status
+          git diff
+
+      - name: Copy extra files
+        shell: bash
+        run: |
+          dst=flutter/sherpa_onnx_windows
+
+          mkdir $dst/example
+
+          cp -v flutter/sherpa_onnx/example/* $dst/example
+          cp -v LICENSE $dst/
+          cp -v CHANGELOG.md $dst/
+
+          git status
+
+      - name: Configure CMake
+        shell: bash
+        run: |
+          mkdir build
+          cd build
+          cmake \
+            -D SHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
+            -D SHERPA_ONNX_ENABLE_TTS=ON \
+            -D CMAKE_BUILD_TYPE=Release \
+            -D BUILD_SHARED_LIBS=ON \
+            -D CMAKE_INSTALL_PREFIX=./install \
+            -D SHERPA_ONNX_ENABLE_JNI=OFF \
+            -D SHERPA_ONNX_ENABLE_BINARY=OFF \
+            ..
+
+      - name: Build sherpa-onnx
+        shell: bash
+        run: |
+          cd build
+          cmake --build . --target install --config Release
+
+          ls -lh install/lib/*.dll
+
+      - name: Copy pre-built libs
+        shell: bash
+        run: |
+          cp -v build/install/lib/*.dll flutter/sherpa_onnx_windows/windows/
+          mv -v flutter/sherpa_onnx_windows /tmp/to_be_published
+
+          ls -lh /tmp/to_be_published/windows
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - uses: dart-lang/setup-dart@v1
 
 
       - name: Release
       - name: Release
         shell: bash
         shell: bash
         run: |
         run: |
-          cd /tmp/to-be-published
+          cd /tmp/to_be_published
+          flutter pub get
+          flutter pub publish --dry-run
+          flutter pub publish --force
+
+  sherpa_onnx_android:
+    # if: false
+    permissions:
+      id-token: write # Required for authentication using OIDC
+    name: sherpa_onnx_android
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-flutter-release-package-android
+
+      - name: Fix version
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          src_dir=$PWD/flutter/sherpa_onnx_android
+          pushd $src_dir
+          v="version: $SHERPA_ONNX_VERSION"
+          echo "v: $v"
+          sed -i.bak s"/^version: .*/$v/" ./pubspec.yaml
+          rm *.bak
+          git status
+          git diff
+
+      - name: Copy extra files
+        shell: bash
+        run: |
+          dst=flutter/sherpa_onnx_android
+
+          mkdir $dst/example
+
+          cp -v flutter/sherpa_onnx/example/* $dst/example
+          cp -v LICENSE $dst/
+          cp -v CHANGELOG.md $dst/
+
+          git status
+
+      - name: Build android-arm64-v8a
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export SHERPA_ONNX_ENABLE_C_API=ON
+          export SHERPA_ONNX_ENABLE_JNI=OFF
+          export SHERPA_ONNX_ENABLE_BINARY=OFF
+
+          ./build-android-arm64-v8a.sh
+
+      - name: Build android-armv7-eabi
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export SHERPA_ONNX_ENABLE_C_API=ON
+          export SHERPA_ONNX_ENABLE_JNI=OFF
+          export SHERPA_ONNX_ENABLE_BINARY=OFF
+
+          ./build-android-armv7-eabi.sh
+
+      - name: Build android-x86
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export SHERPA_ONNX_ENABLE_C_API=ON
+          export SHERPA_ONNX_ENABLE_JNI=OFF
+          export SHERPA_ONNX_ENABLE_BINARY=OFF
+
+          ./build-android-x86.sh
+
+      - name: Build android-x86-64
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export SHERPA_ONNX_ENABLE_C_API=ON
+          export SHERPA_ONNX_ENABLE_JNI=OFF
+          export SHERPA_ONNX_ENABLE_BINARY=OFF
+
+          ./build-android-x86-64.sh
+
+      - name: Copy pre-built libs
+        shell: bash
+        run: |
+          echo "----arm64-v8a----"
+          cp -v build-android-arm64-v8a/install/lib/lib*.so flutter/sherpa_onnx_android/android/src/main/jniLibs/arm64-v8a/
+
+          echo "----armv7-eabi----"
+          cp -v build-android-armv7-eabi/install/lib/lib*.so flutter/sherpa_onnx_android/android/src/main/jniLibs/armeabi-v7a
+
+          echo "----x86----"
+          cp -v build-android-x86/install/lib/lib*.so flutter/sherpa_onnx_android/android/src/main/jniLibs/x86
+
+          echo "----x86_64----"
+          cp -v build-android-x86-64/install/lib/lib*.so flutter/sherpa_onnx_android/android/src/main/jniLibs/x86_64
+
+          mv -v flutter/sherpa_onnx_android /tmp/to_be_published
+
+          ls -lh /tmp/to_be_published
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - uses: dart-lang/setup-dart@v1
+
+      - name: Release
+        shell: bash
+        run: |
+          cd /tmp/to_be_published
+          du -h -d1 .
+
+          flutter pub get
+          flutter pub publish --dry-run
+          flutter pub publish --force
+
+  sherpa_onnx:
+    # needs: [sherpa_onnx_linux, sherpa_onnx_macos, sherpa_onnx_windows, sherpa_onnx_android]
+    # if: false
+    permissions:
+      id-token: write # Required for authentication using OIDC
+    name: sherpa_onnx
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - uses: dart-lang/setup-dart@v1
+
+      - name: Fix version
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          src_dir=$PWD/flutter/sherpa_onnx
+          pushd $src_dir
+          v="version: $SHERPA_ONNX_VERSION"
+          echo "v: $v"
+          sed -i.bak s"/^version: .*/$v/" ./pubspec.yaml
+          rm *.bak
+          git status
+          git diff
+
+      - name: Copy extra files
+        shell: bash
+        run: |
+          dst=flutter/sherpa_onnx
+
+          cp -v LICENSE $dst/
+          cp -v CHANGELOG.md $dst/
+          cp -v README.md $dst/
+
+          git status
+
+          mv -v flutter/sherpa_onnx /tmp/to_be_published
+
+          ls -lh /tmp/to_be_published
+
+      - name: Release
+        shell: bash
+        run: |
+          cd /tmp/to_be_published
+          du -h -d1 .
+
           flutter pub get
           flutter pub get
           flutter pub publish --dry-run
           flutter pub publish --dry-run
           flutter pub publish --force
           flutter pub publish --force

@@ -46,6 +46,51 @@ jobs:
           dart --version
           dart --version
           flutter doctor
           flutter doctor
 
 
+      - name: Display sherpa-onnx package info
+        shell: bash
+        run: |
+          cd dart-api-examples/vad
+          flutter pub get
+
+          if [[ ${{ matrix.os }} == ubuntu-latest ]]; then
+            echo "-----"
+            ls -lh /home/runner/work/_temp/pub-cache/hosted/pub.dev
+
+            echo "-----"
+            ls -lh /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx*
+
+            echo "-----"
+            ls -lh /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx*/*
+
+            echo "-----"
+            ls -lh /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_linux-*
+
+            # sudo mkdir /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_linux-1.10.7/lib
+            # sudo touch /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_linux-1.10.7/lib/.gitkeep
+
+            echo "-----"
+            ls -lh /home/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_linux-*/linux
+          elif [[ ${{ matrix.os }} == macos-latest ]]; then
+            echo "-----"
+            ls -lh /Users/runner/work/_temp/pub-cache/hosted/pub.dev
+
+            echo "-----"
+            ls -lh /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx*
+
+            echo "-----"
+            ls -lh /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx*/*
+
+            echo "-----"
+            ls -lh /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_macos-*/
+
+            echo "-----"
+            ls -lh /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_macos-*/macos
+
+            # sudo mkdir /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_macos-1.10.7/lib
+            # sudo touch /Users/runner/work/_temp/pub-cache/hosted/pub.dev/sherpa_onnx_macos-1.10.7/lib/.gitkeep
+          fi
+
+
       - name: Run tests
       - name: Run tests
         shell: bash
         shell: bash
         run: |
         run: |

@@ -108,3 +108,4 @@ sherpa-onnx-nemo-*
 sherpa-onnx-vits-*
 sherpa-onnx-vits-*
 sherpa-onnx-telespeech-ctc-*
 sherpa-onnx-telespeech-ctc-*
 *.fst
 *.fst
+.ccache

+## 1.10.9
+
+* Fix released packages. piper-phonemize was not included in v1.10.8.
+
+## 1.10.8
+
+* Fix released packages. There should be a lib directory.
+
 ## 1.10.7
 ## 1.10.7
 
 
-* Support Android
+* Support Android for Flutter.
 
 
 ## 1.10.2
 ## 1.10.2
 
 

@@ -8,7 +8,7 @@ project(sherpa-onnx)
 # ./nodejs-addon-examples
 # ./nodejs-addon-examples
 # ./dart-api-examples/
 # ./dart-api-examples/
 # ./sherpa-onnx/flutter/CHANGELOG.md
 # ./sherpa-onnx/flutter/CHANGELOG.md
-set(SHERPA_ONNX_VERSION "1.10.6")
+set(SHERPA_ONNX_VERSION "1.10.9")
 
 
 # Disable warning about
 # Disable warning about
 #
 #
@@ -61,7 +61,7 @@ if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE Release)
   set(CMAKE_BUILD_TYPE Release)
 endif()
 endif()
 
 
-if(DEFINED ANDROID_ABI AND NOT SHERPA_ONNX_ENABLE_JNI)
+if(DEFINED ANDROID_ABI AND NOT SHERPA_ONNX_ENABLE_JNI AND NOT SHERPA_ONNX_ENABLE_C_API)
   message(STATUS "Set SHERPA_ONNX_ENABLE_JNI to ON for Android")
   message(STATUS "Set SHERPA_ONNX_ENABLE_JNI to ON for Android")
   set(SHERPA_ONNX_ENABLE_JNI ON CACHE BOOL "" FORCE)
   set(SHERPA_ONNX_ENABLE_JNI ON CACHE BOOL "" FORCE)
 endif()
 endif()

@@ -10,7 +10,7 @@ environment:
 
 
 # Add regular dependencies here.
 # Add regular dependencies here.
 dependencies:
 dependencies:
-  sherpa_onnx: ^1.10.2
+  sherpa_onnx: ^1.10.9
   path: ^1.9.0
   path: ^1.9.0
   args: ^2.5.0
   args: ^2.5.0
 
 

@@ -11,7 +11,7 @@ environment:
 
 
 # Add regular dependencies here.
 # Add regular dependencies here.
 dependencies:
 dependencies:
-  sherpa_onnx: ^1.10.2
+  sherpa_onnx: ^1.10.9
   path: ^1.9.0
   path: ^1.9.0
   args: ^2.5.0
   args: ^2.5.0
 
 

@@ -8,7 +8,7 @@ environment:
 
 
 # Add regular dependencies here.
 # Add regular dependencies here.
 dependencies:
 dependencies:
-  sherpa_onnx: ^1.10.2
+  sherpa_onnx: ^1.10.9
   path: ^1.9.0
   path: ^1.9.0
   args: ^2.5.0
   args: ^2.5.0
 
 

@@ -9,7 +9,7 @@ environment:
   sdk: ^3.4.0
   sdk: ^3.4.0
 
 
 dependencies:
 dependencies:
-  sherpa_onnx: ^1.10.2
+  sherpa_onnx: ^1.10.9
   path: ^1.9.0
   path: ^1.9.0
   args: ^2.5.0
   args: ^2.5.0
 
 

@@ -30,7 +30,7 @@ dependencies:
   record: ^5.1.0
   record: ^5.1.0
   url_launcher: ^6.2.6
   url_launcher: ^6.2.6
 
 
-  sherpa_onnx: ^1.10.0
+  sherpa_onnx: ^1.10.9
   # sherpa_onnx:
   # sherpa_onnx:
     # path: ../../flutter/sherpa_onnx
     # path: ../../flutter/sherpa_onnx
 
 

-# Usage
+# Some use commands while learning flutter/dart
 
 
 ## macOS
 ## macOS
 
 

-# sherpa_onnx
-
-Please see <https://github.com/k2-fsa/sherpa-onnx>

 # sherpa-onnx app example
 # sherpa-onnx app example
 
 
-See also <https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples>
+## Flutter examples
 
 
-## Streaming speech recognition
+| Functions | URL | Supported Platforms|
+|---|---|---|
+|Streaming speech recognition| [Address](https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples/streaming_asr)| Android, macOS, Windows|
 
 
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
+## Pure dart-examples
 
 
+| Functions | URL | Supported Platforms|
+|---|---|---|
+|Streaming speech recognition| [Address](https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr)| macOS, Windows, Linux|
+|Non-Streaming speech recognition| [Address](https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr)| macOS, Windows, Linux|
+|Text to speech| [Address](https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts)| macOS, Windows, Linux|
+|Voice activity detection (VAD)| [Address](https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad)| macOS, Windows, Linux|

@@ -4,7 +4,7 @@ description: >
   Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
   Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
   with onnxruntime without Internet connection.
   with onnxruntime without Internet connection.
 
 
-repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/sherpa-onnx/flutter
+repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter
 
 
 issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
 issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
 documentation: https://k2-fsa.github.io/sherpa/onnx/
 documentation: https://k2-fsa.github.io/sherpa/onnx/
@@ -16,8 +16,8 @@ topics:
   - audio-tagging
   - audio-tagging
   - voice-activity-detection
   - voice-activity-detection
 
 
-# remember to change the version in ../sherpa_onnx_macos/macos/sherpa_onnx.podspec
-version: 1.10.7
+# remember to change the version in ../sherpa_onnx_macos/macos/sherpa_onnx_macos.podspec
+version: 1.10.9
 
 
 homepage: https://github.com/k2-fsa/sherpa-onnx
 homepage: https://github.com/k2-fsa/sherpa-onnx
 
 
@@ -30,16 +30,16 @@ dependencies:
   flutter:
   flutter:
     sdk: flutter
     sdk: flutter
 
 
-  sherpa_onnx_android:
+  sherpa_onnx_android: ^1.10.9
     # path: ../sherpa_onnx_android
     # path: ../sherpa_onnx_android
 
 
-  sherpa_onnx_macos:
+  sherpa_onnx_macos: ^1.10.9
     # path: ../sherpa_onnx_macos
     # path: ../sherpa_onnx_macos
 
 
-  sherpa_onnx_linux:
+  sherpa_onnx_linux: ^1.10.9
     # path: ../sherpa_onnx_linux
     # path: ../sherpa_onnx_linux
     #
     #
-  sherpa_onnx_windows:
+  sherpa_onnx_windows: ^1.10.9
     # path: ../sherpa_onnx_windows
     # path: ../sherpa_onnx_windows
 
 
 flutter:
 flutter:

-# Miscellaneous
-*.class
-*.log
-*.pyc
-*.swp
-.DS_Store
-.atom/
-.buildlog/
-.history
-.svn/
-migrate_working_dir/
-
-# IntelliJ related
-*.iml
-*.ipr
-*.iws
-.idea/
-
-# The .vscode folder contains launch configuration and tasks you configure in
-# VS Code which you may wish to be included in version control, so this line
-# is commented out by default.
-#.vscode/
-
-# Flutter/Dart/Pub related
-**/doc/api/
-**/ios/Flutter/.last_build_id
-.dart_tool/
-.flutter-plugins
-.flutter-plugins-dependencies
-.pub-cache/
-.pub/
-/build/
-
-# Symbolication related
-app.*.symbols
-
-# Obfuscation related
-app.*.map.json
-
-# Android Studio will place build artifacts here
-/android/app/debug
-/android/app/profile
-/android/app/release

-# Introduction
-
-Please find examples at
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples
-
-and
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples

-# sherpa-onnx app example
-
-## Streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
-

+# Introduction
+
+This directory is left empty intentionally.

 name: sherpa_onnx_android
 name: sherpa_onnx_android
-description: "A new Flutter FFI plugin project."
+
+description: >
+  Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
+  with onnxruntime without Internet connection.
+
 version: 0.0.1
 version: 0.0.1
-homepage:
+
+repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter
+
+issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
+documentation: https://k2-fsa.github.io/sherpa/onnx/
+
+homepage: https://github.com/k2-fsa/sherpa-onnx
+
+topics:
+  - speech-recognition
+  - speech-synthesis
+  - speaker-identification
+  - audio-tagging
+  - voice-activity-detection
 
 
 environment:
 environment:
   sdk: '>=3.4.0 <4.0.0'
   sdk: '>=3.4.0 <4.0.0'

-# Miscellaneous
-*.class
-*.log
-*.pyc
-*.swp
-.DS_Store
-.atom/
-.buildlog/
-.history
-.svn/
-migrate_working_dir/
-
-# IntelliJ related
-*.iml
-*.ipr
-*.iws
-.idea/
-
-# The .vscode folder contains launch configuration and tasks you configure in
-# VS Code which you may wish to be included in version control, so this line
-# is commented out by default.
-#.vscode/
-
-# Flutter/Dart/Pub related
-**/doc/api/
-**/ios/Flutter/.last_build_id
-.dart_tool/
-.flutter-plugins
-.flutter-plugins-dependencies
-.pub-cache/
-.pub/
-/build/
-
-# Symbolication related
-app.*.symbols
-
-# Obfuscation related
-app.*.map.json
-
-# Android Studio will place build artifacts here
-/android/app/debug
-/android/app/profile
-/android/app/release

-# Introduction
-
-Please find examples at
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples
-
-and
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples

-# sherpa-onnx app example
-
-## Streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
-

+# Introduction
+
+This directory is left empty intentionally.

 name: sherpa_onnx_linux
 name: sherpa_onnx_linux
-description: "A new Flutter FFI plugin project."
+description: >
+  Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
+  with onnxruntime without Internet connection.
+
 version: 0.0.1
 version: 0.0.1
-homepage:
+
+repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter
+
+issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
+documentation: https://k2-fsa.github.io/sherpa/onnx/
+
+homepage: https://github.com/k2-fsa/sherpa-onnx
+
+topics:
+  - speech-recognition
+  - speech-synthesis
+  - speaker-identification
+  - audio-tagging
+  - voice-activity-detection
 
 
 environment:
 environment:
   sdk: '>=3.4.0 <4.0.0'
   sdk: '>=3.4.0 <4.0.0'

-# Introduction
-
-Please find examples at
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples
-
-and
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples

-# sherpa-onnx app example
-
-## Streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
-

+# Introduction
+
+This directory is left empty intentionally.

@@ -4,7 +4,7 @@
 #
 #
 Pod::Spec.new do |s|
 Pod::Spec.new do |s|
   s.name             = 'sherpa_onnx_macos'
   s.name             = 'sherpa_onnx_macos'
-  s.version          = '1.10.6'
+  s.version          = '1.10.7'
   s.summary          = 'sherpa-onnx Flutter FFI plugin project.'
   s.summary          = 'sherpa-onnx Flutter FFI plugin project.'
   s.description      = <<-DESC
   s.description      = <<-DESC
 sherpa-onnx Flutter FFI plugin project.
 sherpa-onnx Flutter FFI plugin project.

 name: sherpa_onnx_macos
 name: sherpa_onnx_macos
-description: "A new Flutter FFI plugin project."
+
+description: >
+  Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
+  with onnxruntime without Internet connection.
+
 version: 0.0.1
 version: 0.0.1
-homepage:
+
+repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter
+
+issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
+documentation: https://k2-fsa.github.io/sherpa/onnx/
+
+homepage: https://github.com/k2-fsa/sherpa-onnx
+
+topics:
+  - speech-recognition
+  - speech-synthesis
+  - speaker-identification
+  - audio-tagging
+  - voice-activity-detection
 
 
 environment:
 environment:
   sdk: '>=3.4.0 <4.0.0'
   sdk: '>=3.4.0 <4.0.0'

-# Miscellaneous
-*.class
-*.log
-*.pyc
-*.swp
-.DS_Store
-.atom/
-.buildlog/
-.history
-.svn/
-migrate_working_dir/
-
-# IntelliJ related
-*.iml
-*.ipr
-*.iws
-.idea/
-
-# The .vscode folder contains launch configuration and tasks you configure in
-# VS Code which you may wish to be included in version control, so this line
-# is commented out by default.
-#.vscode/
-
-# Flutter/Dart/Pub related
-**/doc/api/
-**/ios/Flutter/.last_build_id
-.dart_tool/
-.flutter-plugins
-.flutter-plugins-dependencies
-.pub-cache/
-.pub/
-/build/
-
-# Symbolication related
-app.*.symbols
-
-# Obfuscation related
-app.*.map.json
-
-# Android Studio will place build artifacts here
-/android/app/debug
-/android/app/profile
-/android/app/release

-# Introduction
-
-Please find examples at
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter-examples
-
-and
-
-https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples

-# sherpa-onnx app example
-
-## Streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
-

+# Introduction
+
+This directory is left empty intentionally.

 name: sherpa_onnx_windows
 name: sherpa_onnx_windows
-description: "A new Flutter FFI plugin project."
+
+description: >
+  Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
+  with onnxruntime without Internet connection.
+
 version: 0.0.1
 version: 0.0.1
-homepage:
+
+repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/flutter
+
+issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
+documentation: https://k2-fsa.github.io/sherpa/onnx/
+
+homepage: https://github.com/k2-fsa/sherpa-onnx
+
+topics:
+  - speech-recognition
+  - speech-synthesis
+  - speaker-identification
+  - audio-tagging
+  - voice-activity-detection
 
 
 environment:
 environment:
   sdk: '>=3.4.0 <4.0.0'
   sdk: '>=3.4.0 <4.0.0'

-# Do not remove or rename entries in this file, only add new ones
-# See https://github.com/flutter/flutter/issues/128635 for more context.
-
-# Miscellaneous
-*.class
-*.lock
-*.log
-*.pyc
-*.swp
-.DS_Store
-.atom/
-.buildlog/
-.history
-.svn/
-
-# IntelliJ related
-*.iml
-*.ipr
-*.iws
-.idea/
-
-# Visual Studio Code related
-.classpath
-.project
-.settings/
-.vscode/*
-
-# Flutter repo-specific
-/bin/cache/
-/bin/internal/bootstrap.bat
-/bin/internal/bootstrap.sh
-/bin/mingit/
-/dev/benchmarks/mega_gallery/
-/dev/bots/.recipe_deps
-/dev/bots/android_tools/
-/dev/devicelab/ABresults*.json
-/dev/docs/doc/
-/dev/docs/api_docs.zip
-/dev/docs/flutter.docs.zip
-/dev/docs/lib/
-/dev/docs/pubspec.yaml
-/dev/integration_tests/**/xcuserdata
-/dev/integration_tests/**/Pods
-/packages/flutter/coverage/
-version
-analysis_benchmark.json
-
-# packages file containing multi-root paths
-.packages.generated
-
-# Flutter/Dart/Pub related
-**/doc/api/
-.dart_tool/
-.flutter-plugins
-.flutter-plugins-dependencies
-**/generated_plugin_registrant.dart
-.packages
-.pub-preload-cache/
-.pub-cache/
-.pub/
-build/
-flutter_*.png
-linked_*.ds
-unlinked.ds
-unlinked_spec.ds
-
-# Android related
-**/android/**/gradle-wrapper.jar
-.gradle/
-**/android/captures/
-**/android/gradlew
-**/android/gradlew.bat
-**/android/local.properties
-**/android/**/GeneratedPluginRegistrant.java
-**/android/key.properties
-*.jks
-
-# iOS/XCode related
-**/ios/**/*.mode1v3
-**/ios/**/*.mode2v3
-**/ios/**/*.moved-aside
-**/ios/**/*.pbxuser
-**/ios/**/*.perspectivev3
-**/ios/**/*sync/
-**/ios/**/.sconsign.dblite
-**/ios/**/.tags*
-**/ios/**/.vagrant/
-**/ios/**/DerivedData/
-**/ios/**/Icon?
-**/ios/**/Pods/
-**/ios/**/.symlinks/
-**/ios/**/profile
-**/ios/**/xcuserdata
-**/ios/.generated/
-**/ios/Flutter/.last_build_id
-**/ios/Flutter/App.framework
-**/ios/Flutter/Flutter.framework
-**/ios/Flutter/Flutter.podspec
-**/ios/Flutter/Generated.xcconfig
-**/ios/Flutter/ephemeral
-**/ios/Flutter/app.flx
-**/ios/Flutter/app.zip
-**/ios/Flutter/flutter_assets/
-**/ios/Flutter/flutter_export_environment.sh
-**/ios/ServiceDefinitions.json
-**/ios/Runner/GeneratedPluginRegistrant.*
-
-# macOS
-**/Flutter/ephemeral/
-**/Pods/
-**/macos/Flutter/GeneratedPluginRegistrant.swift
-**/macos/Flutter/ephemeral
-**/xcuserdata/
-
-# Windows
-**/windows/flutter/generated_plugin_registrant.cc
-**/windows/flutter/generated_plugin_registrant.h
-**/windows/flutter/generated_plugins.cmake
-
-# Linux
-**/linux/flutter/generated_plugin_registrant.cc
-**/linux/flutter/generated_plugin_registrant.h
-**/linux/flutter/generated_plugins.cmake
-
-# Coverage
-coverage/
-
-# Symbols
-app.*.symbols
-
-# Exceptions to above rules.
-!**/ios/**/default.mode1v3
-!**/ios/**/default.mode2v3
-!**/ios/**/default.pbxuser
-!**/ios/**/default.perspectivev3
-!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
-!/dev/ci/**/Gemfile.lock
-!.vscode/settings.json
-
-## User settings
-xcuserdata/
-
-## Xcode 8 and earlier
-*.xcscmblueprint
-*.xccheckout
-
-flutter_jank_metrics*.json

-## 1.10.2
-
-* Fix passing C# string to C++
-
-## 1.10.1
-
-* Enable to stop TTS generation
-
-## 1.10.0
-
-* Add inverse text normalization
-
-## 1.9.30
-
-* Add TTS
-
-## 1.9.29
-
-* Publish with CI
-
-## 0.0.3
-
-* Fix path separator on Windows.
-
-## 0.0.2
-
-* Support specifying lib path.
-
-## 0.0.1
-
-* Initial release.

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-include: package:flutter_lints/flutter.yaml
-
-# Additional information about this file can be found at
-# https://dart.dev/guides/language/analysis-options

-# Introduction
-
-## Speaker identification
-
-```bash
-# switch to this directory and run
-
-wget https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-recongition-models/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
-wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/silero_vad.onnx
-git clone https://github.com/csukuangfj/sr-data
-
-rm -rf sr-data/.git
-```

-# sherpa-onnx app example
-
-## Streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/streaming-asr
-
-## Non-streaming speech recognition
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/non-streaming-asr
-
-## Text to speech (TTS)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/tts
-
-## Voice activity detection (VAD)
-
-Please see https://github.com/k2-fsa/sherpa-onnx/tree/master/dart-api-examples/vad
-

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:flutter/material.dart';
-import 'package:url_launcher/url_launcher.dart';
-
-class InfoScreen extends StatelessWidget {
-  @override
-  Widget build(BuildContext context) {
-    const double height = 20;
-    return Container(
-      child: Padding(
-        padding: const EdgeInsets.all(8.0),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: <Widget>[
-            Text('Everything is open-sourced.'),
-            SizedBox(height: height),
-            InkWell(
-              child: Text('Code: https://github.com/k2-fsa/sherpa-onnx'),
-              onTap: () => launch('https://k2-fsa.github.io/sherpa/onnx/'),
-            ),
-            SizedBox(height: height),
-            InkWell(
-              child: Text('Doc: https://k2-fsa.github.io/sherpa/onnx/'),
-              onTap: () => launch('https://k2-fsa.github.io/sherpa/onnx/'),
-            ),
-            SizedBox(height: height),
-            Text('QQ 群: 744602236'),
-            SizedBox(height: height),
-            InkWell(
-              child: Text(
-                  '微信群: https://k2-fsa.github.io/sherpa/social-groups.html'),
-              onTap: () =>
-                  launch('https://k2-fsa.github.io/sherpa/social-groups.html'),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-import 'package:flutter/material.dart';
-
-import './vad.dart';
-import './streaming_asr.dart';
-import './info.dart';
-
-void main() {
-  runApp(const MyApp());
-}
-
-class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Next-gen Kaldi',
-      theme: ThemeData(
-        primarySwatch: Colors.blue,
-      ),
-      home: const MyHomePage(title: 'Next-gen Kaldi Demo'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({Key? key, required this.title}) : super(key: key);
-  final String title;
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _currentIndex = 0;
-  final List<Widget> _tabs = [
-    StreamingAsrScreen(),
-    VadScreen(),
-    InfoScreen(),
-  ];
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(widget.title),
-      ),
-      body: _tabs[_currentIndex],
-      bottomNavigationBar: BottomNavigationBar(
-        currentIndex: _currentIndex,
-        onTap: (int index) {
-          setState(() {
-            _currentIndex = index;
-          });
-        },
-        // https://www.xiconeditor.com/
-        items: [
-          BottomNavigationBarItem(
-            icon: new Image.asset("assets/streaming-asr.ico"),
-            label: '',
-          ),
-          BottomNavigationBarItem(
-            icon: new Image.asset("assets/vad.ico"),
-            label: '',
-          ),
-          BottomNavigationBarItem(
-            icon: Icon(Icons.info),
-            label: 'Info',
-          ),
-        ],
-      ),
-    );
-  }
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:path/path.dart';
-import 'package:path_provider/path_provider.dart';
-import 'package:flutter/services.dart' show rootBundle;
-import 'dart:typed_data';
-import "dart:io";
-
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-import './utils.dart';
-
-Future<void> testNonStreamingParaformerAsr() async {
-  var model = 'assets/sherpa-onnx-paraformer-zh-2023-03-28/model.int8.onnx';
-  var tokens = 'assets/sherpa-onnx-paraformer-zh-2023-03-28/tokens.txt';
-  var testWave = 'assets/sherpa-onnx-paraformer-zh-2023-03-28/test_wavs/0.wav';
-
-  model = await copyAssetFile(src: model, dst: 'model.int8.onnx');
-  tokens = await copyAssetFile(src: tokens, dst: 'tokens.txt');
-  testWave = await copyAssetFile(src: testWave, dst: '0.wav');
-
-  final paraformer = sherpa_onnx.OfflineParaformerModelConfig(
-    model: model,
-  );
-
-  final modelConfig = sherpa_onnx.OfflineModelConfig(
-    paraformer: paraformer,
-    tokens: tokens,
-    modelType: 'paraformer',
-  );
-
-  final config = sherpa_onnx.OfflineRecognizerConfig(model: modelConfig);
-  print(config);
-  final recognizer = sherpa_onnx.OfflineRecognizer(config);
-
-  final waveData = sherpa_onnx.readWave(testWave);
-  final stream = recognizer.createStream();
-
-  stream.acceptWaveform(
-      samples: waveData.samples, sampleRate: waveData.sampleRate);
-  recognizer.decode(stream);
-
-  final result = recognizer.getResult(stream);
-  print('result is: ${result}');
-
-  print('recognizer: ${recognizer.ptr}');
-  stream.free();
-  recognizer.free();
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-import 'dart:typed_data';
-import 'package:path/path.dart';
-import './utils.dart';
-
-Float32List computeEmbedding(
-    {required sherpa_onnx.SpeakerEmbeddingExtractor extractor,
-    required String filename}) {
-  final stream = extractor.createStream();
-  final waveData = sherpa_onnx.readWave(filename);
-
-  stream.acceptWaveform(
-      samples: waveData.samples, sampleRate: waveData.sampleRate);
-
-  stream.inputFinished();
-
-  final embedding = extractor.compute(stream);
-
-  stream.free();
-
-  return embedding;
-}
-
-Future<void> testSpeakerID() async {
-  final src =
-      'assets/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx';
-  final modelPath = await copyAssetFile(src: src, dst: 'model.onnx');
-
-  final config = sherpa_onnx.SpeakerEmbeddingExtractorConfig(model: modelPath);
-  final extractor = sherpa_onnx.SpeakerEmbeddingExtractor(config: config);
-
-  const _spk1Files = [
-    'assets/sr-data/enroll/fangjun-sr-1.wav',
-    'assets/sr-data/enroll/fangjun-sr-2.wav',
-    'assets/sr-data/enroll/fangjun-sr-3.wav',
-  ];
-  final spk1Files = <String>[];
-  for (final f in _spk1Files) {
-    spk1Files.add(await copyAssetFile(src: f, dst: basename(f)));
-  }
-
-  final spk1Vec = <Float32List>[];
-  for (final f in spk1Files) {
-    spk1Vec.add(computeEmbedding(extractor: extractor, filename: f));
-  }
-
-  const _spk2Files = [
-    'assets/sr-data/enroll/leijun-sr-1.wav',
-    'assets/sr-data/enroll/leijun-sr-2.wav',
-  ];
-  final spk2Files = <String>[];
-  for (final f in _spk2Files) {
-    spk2Files.add(await copyAssetFile(src: f, dst: basename(f)));
-  }
-
-  final spk2Vec = <Float32List>[];
-  for (final f in spk2Files) {
-    spk2Vec.add(computeEmbedding(extractor: extractor, filename: f));
-  }
-
-  final manager = sherpa_onnx.SpeakerEmbeddingManager(extractor.dim);
-  assert(manager.numSpeakers == 0, '${manager.numSpeakers}');
-
-  bool ok = manager.addMulti(name: 'fangjun', embeddingList: spk1Vec);
-  assert(ok, "Failed to add fangjun");
-  assert(manager.numSpeakers == 1, '${manager.numSpeakers}');
-
-  ok = manager.addMulti(name: 'leijun', embeddingList: spk2Vec);
-  assert(ok, "Failed to add leijun");
-  assert(manager.numSpeakers == 2, '${manager.numSpeakers}');
-
-  bool found = manager.contains('fangjun');
-  assert(found, 'Failed to find fangjun');
-
-  found = manager.contains('leijun');
-  assert(found, 'Failed to find leijun');
-
-  print('---All speakers---');
-
-  print(manager.allSpeakerNames);
-
-  print('------------');
-
-  const _testFiles = [
-    'assets/sr-data/test/fangjun-test-sr-1.wav',
-    'assets/sr-data/test/leijun-test-sr-1.wav',
-    'assets/sr-data/test/liudehua-test-sr-1.wav',
-  ];
-
-  final testFiles = <String>[];
-  for (final f in _testFiles) {
-    testFiles.add(await copyAssetFile(src: f, dst: basename(f)));
-  }
-
-  const threshold = 0.6;
-
-  for (final f in testFiles) {
-    final embedding = computeEmbedding(extractor: extractor, filename: f);
-
-    var name = manager.search(embedding: embedding, threshold: threshold);
-    if (name == '') {
-      name = '<Unknown>';
-    }
-    print('${f}: ${name}');
-  }
-
-  ok = manager.verify(
-      name: 'fangjun',
-      embedding: computeEmbedding(extractor: extractor, filename: testFiles[0]),
-      threshold: threshold);
-  assert(ok, 'Failed to verify fangjun using ${testFiles[0]}');
-
-  ok = manager.remove('fangjun');
-  assert(ok, 'Failed to remove fangjun');
-  assert(manager.numSpeakers == 1, '${manager.numSpeakers}');
-
-  found = manager.contains('fangjun');
-  assert(!found, 'Still found fangjun!');
-
-  ok = manager.verify(
-      name: 'fangjun',
-      embedding: computeEmbedding(extractor: extractor, filename: testFiles[0]),
-      threshold: threshold);
-  assert(!ok, '${testFiles[0]}');
-
-  manager.free();
-  extractor.free();
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:async';
-
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:path/path.dart' as p;
-import 'package:path_provider/path_provider.dart';
-import 'package:record/record.dart';
-
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-
-import './utils.dart';
-
-import './streaming_transducer_asr_test.dart'; // TODO(fangjun): remove it
-
-Future<sherpa_onnx.OnlineRecognizer> createOnlineRecognizer() async {
-  var encoder =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/encoder-epoch-99-avg-1.int8.onnx';
-  var decoder =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/decoder-epoch-99-avg-1.onnx';
-  var joiner =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/joiner-epoch-99-avg-1.int8.onnx';
-  var tokens =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/tokens.txt';
-
-  encoder = await copyAssetFile(src: encoder, dst: 'encoder.onnx');
-  decoder = await copyAssetFile(src: decoder, dst: 'decoder.onnx');
-  joiner = await copyAssetFile(src: joiner, dst: 'joiner.onnx');
-  tokens = await copyAssetFile(src: tokens, dst: 'tokens.txt');
-
-  final transducer = sherpa_onnx.OnlineTransducerModelConfig(
-    encoder: encoder,
-    decoder: decoder,
-    joiner: joiner,
-  );
-
-  final modelConfig = sherpa_onnx.OnlineModelConfig(
-    transducer: transducer,
-    tokens: tokens,
-    modelType: 'zipformer',
-  );
-
-  final config = sherpa_onnx.OnlineRecognizerConfig(model: modelConfig);
-  return sherpa_onnx.OnlineRecognizer(config);
-}
-
-class StreamingAsrScreen extends StatefulWidget {
-  const StreamingAsrScreen({super.key});
-
-  @override
-  State<StreamingAsrScreen> createState() => _StreamingAsrScreenState();
-}
-
-class _StreamingAsrScreenState extends State<StreamingAsrScreen> {
-  late final TextEditingController _controller;
-  late final AudioRecorder _audioRecorder;
-
-  String _title = 'Real-time speech recognition';
-  String _last = '';
-  int _index = 0;
-  bool _isInitialized = false;
-
-  sherpa_onnx.OnlineRecognizer? _recognizer;
-  sherpa_onnx.OnlineStream? _stream;
-  int _sampleRate = 16000;
-
-  StreamSubscription<RecordState>? _recordSub;
-  RecordState _recordState = RecordState.stop;
-
-  @override
-  void initState() {
-    _audioRecorder = AudioRecorder();
-    _controller = TextEditingController();
-
-    _recordSub = _audioRecorder.onStateChanged().listen((recordState) {
-      _updateRecordState(recordState);
-    });
-
-    super.initState();
-  }
-
-  Future<void> _start() async {
-    if (!_isInitialized) {
-      sherpa_onnx.initBindings();
-      _recognizer = await createOnlineRecognizer();
-      _stream = _recognizer?.createStream();
-
-      _isInitialized = true;
-    }
-
-    try {
-      if (await _audioRecorder.hasPermission()) {
-        const encoder = AudioEncoder.pcm16bits;
-
-        if (!await _isEncoderSupported(encoder)) {
-          return;
-        }
-
-        final devs = await _audioRecorder.listInputDevices();
-        debugPrint(devs.toString());
-
-        const config = RecordConfig(
-          encoder: encoder,
-          sampleRate: 16000,
-          numChannels: 1,
-        );
-
-        final stream = await _audioRecorder.startStream(config);
-
-        stream.listen(
-          (data) {
-            final samplesFloat32 =
-                convertBytesToFloat32(Uint8List.fromList(data));
-
-            _stream!.acceptWaveform(
-                samples: samplesFloat32, sampleRate: _sampleRate);
-            while (_recognizer!.isReady(_stream!)) {
-              _recognizer!.decode(_stream!);
-            }
-            final text = _recognizer!.getResult(_stream!).text;
-            String textToDisplay = _last;
-            if (text != '') {
-              if (_last == '') {
-                textToDisplay = '$_index: $text';
-              } else {
-                textToDisplay = '$_index: $text\n$_last';
-              }
-            }
-
-            if (_recognizer!.isEndpoint(_stream!)) {
-              _recognizer!.reset(_stream!);
-              if (text != '') {
-                _last = textToDisplay;
-                _index += 1;
-              }
-            }
-            print('text: $textToDisplay');
-
-            _controller.value = TextEditingValue(
-              text: textToDisplay,
-              selection: TextSelection.collapsed(offset: textToDisplay.length),
-            );
-          },
-          onDone: () {
-            print('stream stopped.');
-          },
-        );
-      }
-    } catch (e) {
-      print(e);
-    }
-  }
-
-  Future<void> _stop() async {
-    _stream!.free();
-    _stream = _recognizer!.createStream();
-
-    await _audioRecorder.stop();
-  }
-
-  Future<void> _pause() => _audioRecorder.pause();
-
-  Future<void> _resume() => _audioRecorder.resume();
-
-  void _updateRecordState(RecordState recordState) {
-    setState(() => _recordState = recordState);
-  }
-
-  Future<bool> _isEncoderSupported(AudioEncoder encoder) async {
-    final isSupported = await _audioRecorder.isEncoderSupported(
-      encoder,
-    );
-
-    if (!isSupported) {
-      debugPrint('${encoder.name} is not supported on this platform.');
-      debugPrint('Supported encoders are:');
-
-      for (final e in AudioEncoder.values) {
-        if (await _audioRecorder.isEncoderSupported(e)) {
-          debugPrint('- ${encoder.name}');
-        }
-      }
-    }
-
-    return isSupported;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      home: Scaffold(
-        body: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Text(_title),
-            const SizedBox(height: 50),
-            TextField(
-              maxLines: 5,
-              controller: _controller,
-              readOnly: true,
-            ),
-            const SizedBox(height: 50),
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                _buildRecordStopControl(),
-                const SizedBox(width: 20),
-                _buildText(),
-              ],
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  @override
-  void dispose() {
-    _recordSub?.cancel();
-    _audioRecorder.dispose();
-    _stream?.free();
-    _recognizer?.free();
-    super.dispose();
-  }
-
-  Widget _buildRecordStopControl() {
-    late Icon icon;
-    late Color color;
-
-    if (_recordState != RecordState.stop) {
-      icon = const Icon(Icons.stop, color: Colors.red, size: 30);
-      color = Colors.red.withOpacity(0.1);
-    } else {
-      final theme = Theme.of(context);
-      icon = Icon(Icons.mic, color: theme.primaryColor, size: 30);
-      color = theme.primaryColor.withOpacity(0.1);
-    }
-
-    return ClipOval(
-      child: Material(
-        color: color,
-        child: InkWell(
-          child: SizedBox(width: 56, height: 56, child: icon),
-          onTap: () {
-            (_recordState != RecordState.stop) ? _stop() : _start();
-          },
-        ),
-      ),
-    );
-  }
-
-  Widget _buildText() {
-    if (_recordState == RecordState.stop) {
-      return const Text("Start");
-    } else {
-      return const Text("Stop");
-    }
-  }
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:path/path.dart';
-import 'package:path_provider/path_provider.dart';
-import 'package:flutter/services.dart' show rootBundle;
-import 'dart:typed_data';
-import "dart:io";
-
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-import './utils.dart';
-
-Future<void> testStreamingTransducerAsr() async {
-  var encoder =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/encoder-epoch-99-avg-1.int8.onnx';
-  var decoder =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/decoder-epoch-99-avg-1.onnx';
-  var joiner =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/joiner-epoch-99-avg-1.int8.onnx';
-  var tokens =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/tokens.txt';
-
-  var testWave =
-      'assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/test_wavs/0.wav';
-
-  encoder = await copyAssetFile(src: encoder, dst: 'encoder.onnx');
-  decoder = await copyAssetFile(src: decoder, dst: 'decoder.onnx');
-  joiner = await copyAssetFile(src: joiner, dst: 'joiner.onnx');
-  tokens = await copyAssetFile(src: tokens, dst: 'tokens.txt');
-  testWave = await copyAssetFile(src: testWave, dst: 'test.wav');
-
-  final transducer = sherpa_onnx.OnlineTransducerModelConfig(
-    encoder: encoder,
-    decoder: decoder,
-    joiner: joiner,
-  );
-
-  final modelConfig = sherpa_onnx.OnlineModelConfig(
-    transducer: transducer,
-    tokens: tokens,
-    modelType: 'zipformer',
-  );
-
-  final config = sherpa_onnx.OnlineRecognizerConfig(model: modelConfig);
-  print(config);
-  final recognizer = sherpa_onnx.OnlineRecognizer(config);
-
-  final waveData = sherpa_onnx.readWave(testWave);
-  final stream = recognizer.createStream();
-
-  stream.acceptWaveform(
-      samples: waveData.samples, sampleRate: waveData.sampleRate);
-  while (recognizer.isReady(stream)) {
-    recognizer.decode(stream);
-  }
-
-  final result = recognizer.getResult(stream);
-  print('result is: ${result}');
-
-  print('recognizer: ${recognizer.ptr}');
-  stream.free();
-  recognizer.free();
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'package:path/path.dart';
-import 'package:path_provider/path_provider.dart';
-import 'package:flutter/services.dart' show rootBundle;
-import 'dart:typed_data';
-import "dart:io";
-
-// Copy the asset file from src to dst
-Future<String> copyAssetFile({required String src, required String dst}) async {
-  final Directory directory = await getApplicationDocumentsDirectory();
-  final target = join(directory.path, dst);
-
-  final data = await rootBundle.load(src);
-  final List<int> bytes =
-      data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
-  await File(target).writeAsBytes(bytes);
-
-  return target;
-}
-
-Float32List convertBytesToFloat32(Uint8List bytes, [endian = Endian.little]) {
-  final values = Float32List(bytes.length ~/ 2);
-
-  final data = ByteData.view(bytes.buffer);
-
-  for (var i = 0; i < bytes.length; i += 2) {
-    int short = data.getInt16(i, endian);
-    values[i ~/ 2] = short / 32678.0;
-  }
-
-  return values;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:async';
-
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:path/path.dart' as p;
-import 'package:path_provider/path_provider.dart';
-import 'package:record/record.dart';
-
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-
-import './utils.dart';
-
-class VadScreen extends StatefulWidget {
-  const VadScreen({super.key});
-
-  @override
-  State<VadScreen> createState() => _VadScreenState();
-}
-
-class _VadScreenState extends State<VadScreen> {
-  late final AudioRecorder _audioRecorder;
-
-  bool _printed = false;
-  var _color = Colors.black;
-  bool _isInitialized = false;
-
-  sherpa_onnx.VoiceActivityDetector? _vad;
-  sherpa_onnx.CircularBuffer? _buffer;
-
-  StreamSubscription<RecordState>? _recordSub;
-  RecordState _recordState = RecordState.stop;
-
-  @override
-  void initState() {
-    _audioRecorder = AudioRecorder();
-
-    _recordSub = _audioRecorder.onStateChanged().listen((recordState) {
-      _updateRecordState(recordState);
-    });
-
-    super.initState();
-  }
-
-  Future<void> _start() async {
-    if (!_isInitialized) {
-      sherpa_onnx.initBindings();
-      final src = 'assets/silero_vad.onnx';
-      final modelPath = await copyAssetFile(src: src, dst: 'silero_vad.onnx');
-
-      final sileroVadConfig = sherpa_onnx.SileroVadModelConfig(
-        model: modelPath,
-        minSpeechDuration: 0.25,
-        minSilenceDuration: 0.5,
-      );
-
-      final config = sherpa_onnx.VadModelConfig(
-        sileroVad: sileroVadConfig,
-        numThreads: 1,
-        debug: true,
-      );
-
-      _vad = sherpa_onnx.VoiceActivityDetector(
-          config: config, bufferSizeInSeconds: 30);
-
-      _buffer = sherpa_onnx.CircularBuffer(capacity: 16000 * 30);
-      print(_buffer!.ptr);
-
-      _isInitialized = true;
-    }
-
-    try {
-      if (await _audioRecorder.hasPermission()) {
-        const encoder = AudioEncoder.pcm16bits;
-
-        if (!await _isEncoderSupported(encoder)) {
-          return;
-        }
-
-        final devs = await _audioRecorder.listInputDevices();
-        debugPrint(devs.toString());
-
-        const config = RecordConfig(
-          encoder: encoder,
-          sampleRate: 16000,
-          numChannels: 1,
-        );
-
-        final stream = await _audioRecorder.startStream(config);
-
-        final dir = await getApplicationDocumentsDirectory();
-
-        stream.listen(
-          (data) {
-            final samplesFloat32 =
-                convertBytesToFloat32(Uint8List.fromList(data));
-
-            _buffer!.push(samplesFloat32);
-
-            final windowSize = _vad!.config.sileroVad.windowSize;
-            while (_buffer!.size > windowSize) {
-              final samples =
-                  _buffer!.get(startIndex: _buffer!.head, n: windowSize);
-              _buffer!.pop(windowSize);
-              _vad!.acceptWaveform(samples);
-              if (_vad!.isDetected() && !_printed) {
-                print('detected');
-                _printed = true;
-
-                setState(() => _color = Colors.red);
-              }
-
-              if (!_vad!.isDetected()) {
-                _printed = false;
-                setState(() => _color = Colors.black);
-              }
-
-              while (!_vad!.isEmpty()) {
-                final segment = _vad!.front();
-                final duration = segment.samples.length / 16000;
-                final d = DateTime.now();
-                final filename = p.join(dir.path,
-                    '${d.year}-${d.month}-${d.day}-${d.hour}-${d.minute}-${d.second}-duration-${duration.toStringAsPrecision(3)}s.wav');
-
-                bool ok = sherpa_onnx.writeWave(
-                    filename: filename,
-                    samples: segment.samples,
-                    sampleRate: 16000);
-                if (!ok) {
-                  print('Failed to write $filename');
-                } else {
-                  print('Saved to write $filename');
-                }
-
-                _vad!.pop();
-              }
-            }
-          },
-          onDone: () {
-            print('stream stopped.');
-          },
-        );
-      }
-    } catch (e) {
-      print(e);
-    }
-  }
-
-  Future<void> _stop() async {
-    _buffer!.reset();
-    _vad!.clear();
-
-    await _audioRecorder.stop();
-  }
-
-  Future<void> _pause() => _audioRecorder.pause();
-
-  Future<void> _resume() => _audioRecorder.resume();
-
-  void _updateRecordState(RecordState recordState) {
-    setState(() => _recordState = recordState);
-  }
-
-  Future<bool> _isEncoderSupported(AudioEncoder encoder) async {
-    final isSupported = await _audioRecorder.isEncoderSupported(
-      encoder,
-    );
-
-    if (!isSupported) {
-      debugPrint('${encoder.name} is not supported on this platform.');
-      debugPrint('Supported encoders are:');
-
-      for (final e in AudioEncoder.values) {
-        if (await _audioRecorder.isEncoderSupported(e)) {
-          debugPrint('- ${encoder.name}');
-        }
-      }
-    }
-
-    return isSupported;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      home: Scaffold(
-        body: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Container(
-              width: 100.0,
-              height: 100.0,
-              decoration: BoxDecoration(
-                shape: BoxShape.circle,
-                color: _color,
-              ),
-            ),
-            const SizedBox(height: 50),
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                _buildRecordStopControl(),
-                const SizedBox(width: 20),
-                _buildText(),
-              ],
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  @override
-  void dispose() {
-    _recordSub?.cancel();
-    _audioRecorder.dispose();
-    _vad?.free();
-    _buffer?.free();
-    super.dispose();
-  }
-
-  Widget _buildRecordStopControl() {
-    late Icon icon;
-    late Color color;
-
-    if (_recordState != RecordState.stop) {
-      icon = const Icon(Icons.stop, color: Colors.red, size: 30);
-      color = Colors.red.withOpacity(0.1);
-    } else {
-      final theme = Theme.of(context);
-      icon = Icon(Icons.mic, color: theme.primaryColor, size: 30);
-      color = theme.primaryColor.withOpacity(0.1);
-    }
-
-    return ClipOval(
-      child: Material(
-        color: color,
-        child: InkWell(
-          child: SizedBox(width: 56, height: 56, child: icon),
-          onTap: () {
-            (_recordState != RecordState.stop) ? _stop() : _start();
-          },
-        ),
-      ),
-    );
-  }
-
-  Widget _buildText() {
-    if (_recordState == RecordState.stop) {
-      return const Text("Start");
-    } else {
-      return const Text("Stop");
-    }
-  }
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:typed_data';
-import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
-import './utils.dart';
-
-Future<void> testVad() async {
-  final src = 'assets/silero_vad.onnx';
-  final modelPath = await copyAssetFile(src: src, dst: 'silero_vad.onnx');
-
-  final sileroVadConfig = sherpa_onnx.SileroVadModelConfig(model: modelPath);
-  final config = sherpa_onnx.VadModelConfig(
-    sileroVad: sileroVadConfig,
-    numThreads: 1,
-    debug: true,
-  );
-
-  final vad = sherpa_onnx.VoiceActivityDetector(
-      config: config, bufferSizeInSeconds: 10);
-  print('before vad.free(): ${vad.ptr}');
-  vad.free();
-  print('after vad.free(): ${vad.ptr}');
-
-  final buffer = sherpa_onnx.CircularBuffer(capacity: 16000 * 2);
-
-  final d = Float32List.fromList([0, 10, 20, 30]);
-  buffer.push(d);
-  assert(d.length == buffer.size, '${d.length} vs ${buffer.size}');
-
-  final f = Float32List.fromList([-5, 100.25, 599]);
-  buffer.push(f);
-
-  assert(buffer.size == d.length + f.length);
-  final g = buffer.get(startIndex: 0, n: 5);
-
-  assert(g.length == 5);
-  assert(g[0] == 0);
-  assert(g[1] == 10);
-  assert(g[2] == 20);
-  assert(g[3] == 30);
-  assert(g[4] == -5);
-
-  assert(buffer.size == d.length + f.length);
-
-  buffer.pop(3);
-  assert(buffer.size == d.length + f.length - 3);
-
-  final h = buffer.get(startIndex: buffer.head, n: 4);
-  assert(h.length == 4);
-  assert(h[0] == 30);
-  assert(h[1] == -5);
-  assert(h[2] == 100.25);
-  assert(h[3] == 599);
-
-  buffer.reset();
-
-  assert(buffer.size == 0);
-  assert(buffer.head == 0);
-
-  print('before free: ${buffer.ptr}');
-  buffer.free();
-  print('after free: ${buffer.ptr}');
-}

-flutter/ephemeral

-# Project-level configuration.
-cmake_minimum_required(VERSION 3.10)
-project(runner LANGUAGES CXX)
-
-# The name of the executable created for the application. Change this to change
-# the on-disk name of your application.
-set(BINARY_NAME "sherpa_onnx")
-# The unique GTK application identifier for this application. See:
-# https://wiki.gnome.org/HowDoI/ChooseApplicationID
-set(APPLICATION_ID "com.k2fsa.sherpa.onnx")
-
-# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
-# versions of CMake.
-cmake_policy(SET CMP0063 NEW)
-
-# Load bundled libraries from the lib/ directory relative to the binary.
-set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
-
-# Root filesystem for cross-building.
-if(FLUTTER_TARGET_PLATFORM_SYSROOT)
-  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
-  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
-  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
-  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
-  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-endif()
-
-# Define build configuration options.
-if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
-  set(CMAKE_BUILD_TYPE "Debug" CACHE
-    STRING "Flutter build mode" FORCE)
-  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
-    "Debug" "Profile" "Release")
-endif()
-
-# Compilation settings that should be applied to most targets.
-#
-# Be cautious about adding new options here, as plugins use this function by
-# default. In most cases, you should add new options to specific targets instead
-# of modifying this function.
-function(APPLY_STANDARD_SETTINGS TARGET)
-  target_compile_features(${TARGET} PUBLIC cxx_std_14)
-  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
-  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
-  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
-endfunction()
-
-# Flutter library and tool build rules.
-set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
-add_subdirectory(${FLUTTER_MANAGED_DIR})
-
-# System-level dependencies.
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
-
-add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
-
-# Define the application target. To change its name, change BINARY_NAME above,
-# not the value here, or `flutter run` will no longer work.
-#
-# Any new source files that you add to the application should be added here.
-add_executable(${BINARY_NAME}
-  "main.cc"
-  "my_application.cc"
-  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
-)
-
-# Apply the standard set of build settings. This can be removed for applications
-# that need different build settings.
-apply_standard_settings(${BINARY_NAME})
-
-# Add dependency libraries. Add any application-specific dependencies here.
-target_link_libraries(${BINARY_NAME} PRIVATE flutter)
-target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
-
-# Run the Flutter tool portions of the build. This must not be removed.
-add_dependencies(${BINARY_NAME} flutter_assemble)
-
-# Only the install-generated bundle's copy of the executable will launch
-# correctly, since the resources must in the right relative locations. To avoid
-# people trying to run the unbundled copy, put it in a subdirectory instead of
-# the default top-level location.
-set_target_properties(${BINARY_NAME}
-  PROPERTIES
-  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
-)
-
-
-# Generated plugin build rules, which manage building the plugins and adding
-# them to the application.
-include(flutter/generated_plugins.cmake)
-
-
-# === Installation ===
-# By default, "installing" just makes a relocatable bundle in the build
-# directory.
-set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
-endif()
-
-# Start with a clean build bundle directory every time.
-install(CODE "
-  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
-  " COMPONENT Runtime)
-
-set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
-set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
-
-install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-  COMPONENT Runtime)
-
-foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
-  install(FILES "${bundled_library}"
-    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endforeach(bundled_library)
-
-# Copy the native assets provided by the build.dart from all packages.
-set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
-install(DIRECTORY "${NATIVE_ASSETS_DIR}"
-   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-   COMPONENT Runtime)
-
-# Fully re-copy the assets directory on each build to avoid having stale files
-# from a previous install.
-set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
-install(CODE "
-  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
-  " COMPONENT Runtime)
-install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
-  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
-
-# Install the AOT library on non-Debug builds only.
-if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
-  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()

-# This file controls Flutter-level build steps. It should not be edited.
-cmake_minimum_required(VERSION 3.10)
-
-set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
-
-# Configuration provided via flutter tool.
-include(${EPHEMERAL_DIR}/generated_config.cmake)
-
-# TODO: Move the rest of this into files in ephemeral. See
-# https://github.com/flutter/flutter/issues/57146.
-
-# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
-# which isn't available in 3.10.
-function(list_prepend LIST_NAME PREFIX)
-    set(NEW_LIST "")
-    foreach(element ${${LIST_NAME}})
-        list(APPEND NEW_LIST "${PREFIX}${element}")
-    endforeach(element)
-    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
-endfunction()
-
-# === Flutter Library ===
-# System-level dependencies.
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
-pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
-pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
-
-set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
-
-# Published to parent scope for install step.
-set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
-set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
-set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
-set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
-
-list(APPEND FLUTTER_LIBRARY_HEADERS
-  "fl_basic_message_channel.h"
-  "fl_binary_codec.h"
-  "fl_binary_messenger.h"
-  "fl_dart_project.h"
-  "fl_engine.h"
-  "fl_json_message_codec.h"
-  "fl_json_method_codec.h"
-  "fl_message_codec.h"
-  "fl_method_call.h"
-  "fl_method_channel.h"
-  "fl_method_codec.h"
-  "fl_method_response.h"
-  "fl_plugin_registrar.h"
-  "fl_plugin_registry.h"
-  "fl_standard_message_codec.h"
-  "fl_standard_method_codec.h"
-  "fl_string_codec.h"
-  "fl_value.h"
-  "fl_view.h"
-  "flutter_linux.h"
-)
-list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
-add_library(flutter INTERFACE)
-target_include_directories(flutter INTERFACE
-  "${EPHEMERAL_DIR}"
-)
-target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
-target_link_libraries(flutter INTERFACE
-  PkgConfig::GTK
-  PkgConfig::GLIB
-  PkgConfig::GIO
-)
-add_dependencies(flutter flutter_assemble)
-
-# === Flutter tool backend ===
-# _phony_ is a non-existent file to force this command to run every time,
-# since currently there's no way to get a full input/output list from the
-# flutter tool.
-add_custom_command(
-  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
-    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
-  COMMAND ${CMAKE_COMMAND} -E env
-    ${FLUTTER_TOOL_ENVIRONMENT}
-    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
-      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
-  VERBATIM
-)
-add_custom_target(flutter_assemble DEPENDS
-  "${FLUTTER_LIBRARY}"
-  ${FLUTTER_LIBRARY_HEADERS}
-)

-#include "my_application.h"
-
-int main(int argc, char** argv) {
-  g_autoptr(MyApplication) app = my_application_new();
-  return g_application_run(G_APPLICATION(app), argc, argv);
-}

-#include "my_application.h"
-
-#include <flutter_linux/flutter_linux.h>
-#ifdef GDK_WINDOWING_X11
-#include <gdk/gdkx.h>
-#endif
-
-#include "flutter/generated_plugin_registrant.h"
-
-struct _MyApplication {
-  GtkApplication parent_instance;
-  char** dart_entrypoint_arguments;
-};
-
-G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
-
-// Implements GApplication::activate.
-static void my_application_activate(GApplication* application) {
-  MyApplication* self = MY_APPLICATION(application);
-  GtkWindow* window =
-      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-
-  // Use a header bar when running in GNOME as this is the common style used
-  // by applications and is the setup most users will be using (e.g. Ubuntu
-  // desktop).
-  // If running on X and not using GNOME then just use a traditional title bar
-  // in case the window manager does more exotic layout, e.g. tiling.
-  // If running on Wayland assume the header bar will work (may need changing
-  // if future cases occur).
-  gboolean use_header_bar = TRUE;
-#ifdef GDK_WINDOWING_X11
-  GdkScreen* screen = gtk_window_get_screen(window);
-  if (GDK_IS_X11_SCREEN(screen)) {
-    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
-    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
-      use_header_bar = FALSE;
-    }
-  }
-#endif
-  if (use_header_bar) {
-    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
-    gtk_widget_show(GTK_WIDGET(header_bar));
-    gtk_header_bar_set_title(header_bar, "sherpa_onnx");
-    gtk_header_bar_set_show_close_button(header_bar, TRUE);
-    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
-  } else {
-    gtk_window_set_title(window, "sherpa_onnx");
-  }
-
-  gtk_window_set_default_size(window, 1280, 720);
-  gtk_widget_show(GTK_WIDGET(window));
-
-  g_autoptr(FlDartProject) project = fl_dart_project_new();
-  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
-
-  FlView* view = fl_view_new(project);
-  gtk_widget_show(GTK_WIDGET(view));
-  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
-
-  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
-
-  gtk_widget_grab_focus(GTK_WIDGET(view));
-}
-
-// Implements GApplication::local_command_line.
-static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
-  MyApplication* self = MY_APPLICATION(application);
-  // Strip out the first argument as it is the binary name.
-  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
-
-  g_autoptr(GError) error = nullptr;
-  if (!g_application_register(application, nullptr, &error)) {
-     g_warning("Failed to register: %s", error->message);
-     *exit_status = 1;
-     return TRUE;
-  }
-
-  g_application_activate(application);
-  *exit_status = 0;
-
-  return TRUE;
-}
-
-// Implements GApplication::startup.
-static void my_application_startup(GApplication* application) {
-  //MyApplication* self = MY_APPLICATION(object);
-
-  // Perform any actions required at application startup.
-
-  G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
-}
-
-// Implements GApplication::shutdown.
-static void my_application_shutdown(GApplication* application) {
-  //MyApplication* self = MY_APPLICATION(object);
-
-  // Perform any actions required at application shutdown.
-
-  G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
-}
-
-// Implements GObject::dispose.
-static void my_application_dispose(GObject* object) {
-  MyApplication* self = MY_APPLICATION(object);
-  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
-  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
-}
-
-static void my_application_class_init(MyApplicationClass* klass) {
-  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
-  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
-  G_APPLICATION_CLASS(klass)->startup = my_application_startup;
-  G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
-  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
-}
-
-static void my_application_init(MyApplication* self) {}
-
-MyApplication* my_application_new() {
-  return MY_APPLICATION(g_object_new(my_application_get_type(),
-                                     "application-id", APPLICATION_ID,
-                                     "flags", G_APPLICATION_NON_UNIQUE,
-                                     nullptr));
-}

-#ifndef FLUTTER_MY_APPLICATION_H_
-#define FLUTTER_MY_APPLICATION_H_
-
-#include <gtk/gtk.h>
-
-G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
-                     GtkApplication)
-
-/**
- * my_application_new:
- *
- * Creates a new Flutter-based application.
- *
- * Returns: a new #MyApplication.
- */
-MyApplication* my_application_new();
-
-#endif  // FLUTTER_MY_APPLICATION_H_

-# Flutter-related
-**/Flutter/ephemeral/
-**/Pods/
-
-# Xcode-related
-**/dgph
-**/xcuserdata/

-#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
-#include "ephemeral/Flutter-Generated.xcconfig"

-#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
-#include "ephemeral/Flutter-Generated.xcconfig"

-platform :osx, '10.15'
-
-# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
-ENV['COCOAPODS_DISABLE_STATS'] = 'true'
-
-project 'Runner', {
-  'Debug' => :debug,
-  'Profile' => :release,
-  'Release' => :release,
-}
-
-def flutter_root
-  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
-  unless File.exist?(generated_xcode_build_settings_path)
-    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
-  end
-
-  File.foreach(generated_xcode_build_settings_path) do |line|
-    matches = line.match(/FLUTTER_ROOT\=(.*)/)
-    return matches[1].strip if matches
-  end
-  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
-end
-
-require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
-
-flutter_macos_podfile_setup
-
-target 'Runner' do
-  use_frameworks!
-  use_modular_headers!
-
-  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
-  target 'RunnerTests' do
-    inherit! :search_paths
-  end
-end
-
-post_install do |installer|
-  installer.pods_project.targets.each do |target|
-    flutter_additional_macos_build_settings(target)
-  end
-end

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-				338D0CEA231458BD00FA5F75 /* Profile */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				33CC111C2044C6BA0003C045 /* Debug */,
-				33CC111D2044C6BA0003C045 /* Release */,
-				338D0CEB231458BD00FA5F75 /* Profile */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
-}

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "1510"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-               BuildableName = "sherpa_onnx.app"
-               BlueprintName = "Runner"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "sherpa_onnx.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <Testables>
-         <TestableReference
-            skipped = "NO"
-            parallelizable = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "331C80D4294CF70F00263BE5"
-               BuildableName = "RunnerTests.xctest"
-               BlueprintName = "RunnerTests"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </TestableReference>
-      </Testables>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      allowLocationSimulation = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "sherpa_onnx.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Profile"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "sherpa_onnx.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>

-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "group:Runner.xcodeproj">
-   </FileRef>
-   <FileRef
-      location = "group:Pods/Pods.xcodeproj">
-   </FileRef>
-</Workspace>

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

-import Cocoa
-import FlutterMacOS
-
-@NSApplicationMain
-class AppDelegate: FlutterAppDelegate {
-  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
-    return true
-  }
-}

-{
-  "images" : [
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_16.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_64.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_128.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_1024.png",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
-    <dependencies>
-        <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <objects>
-        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
-            <connections>
-                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
-            </connections>
-        </customObject>
-        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
-        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
-        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
-            <connections>
-                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
-                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
-            </connections>
-        </customObject>
-        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
-        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
-            <items>
-                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
-                        <items>
-                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <connections>
-                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
-                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
-                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
-                            <menuItem title="Services" id="NMo-om-nkz">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
-                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
-                                <connections>
-                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
-                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
-                                <connections>
-                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Show All" id="Kd2-mp-pUS">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <connections>
-                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
-                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
-                                <connections>
-                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
-                                </connections>
-                            </menuItem>
-                        </items>
-                    </menu>
-                </menuItem>
-                <menuItem title="Edit" id="5QF-Oa-p0T">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
-                        <items>
-                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
-                                <connections>
-                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
-                                <connections>
-                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
-                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
-                                <connections>
-                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
-                                <connections>
-                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
-                                <connections>
-                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
-                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
-                                <connections>
-                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Delete" id="pa3-QI-u2k">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <connections>
-                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
-                                <connections>
-                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
-                            <menuItem title="Find" id="4EN-yA-p0u">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
-                                    <items>
-                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
-                                            <connections>
-                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
-                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
-                                            <connections>
-                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
-                                            <connections>
-                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
-                                            <connections>
-                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
-                                            <connections>
-                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
-                                            <connections>
-                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
-                                            </connections>
-                                        </menuItem>
-                                    </items>
-                                </menu>
-                            </menuItem>
-                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
-                                    <items>
-                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
-                                            <connections>
-                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
-                                            <connections>
-                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
-                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
-                                            </connections>
-                                        </menuItem>
-                                    </items>
-                                </menu>
-                            </menuItem>
-                            <menuItem title="Substitutions" id="9ic-FL-obx">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
-                                    <items>
-                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
-                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Smart Links" id="cwL-P1-jid">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
-                                            </connections>
-                                        </menuItem>
-                                    </items>
-                                </menu>
-                            </menuItem>
-                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
-                                    <items>
-                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
-                                            </connections>
-                                        </menuItem>
-                                    </items>
-                                </menu>
-                            </menuItem>
-                            <menuItem title="Speech" id="xrE-MZ-jX0">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
-                                    <items>
-                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
-                                            </connections>
-                                        </menuItem>
-                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
-                                            <modifierMask key="keyEquivalentModifierMask"/>
-                                            <connections>
-                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
-                                            </connections>
-                                        </menuItem>
-                                    </items>
-                                </menu>
-                            </menuItem>
-                        </items>
-                    </menu>
-                </menuItem>
-                <menuItem title="View" id="H8h-7b-M4v">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <menu key="submenu" title="View" id="HyV-fh-RgO">
-                        <items>
-                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
-                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
-                                <connections>
-                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
-                                </connections>
-                            </menuItem>
-                        </items>
-                    </menu>
-                </menuItem>
-                <menuItem title="Window" id="aUF-d1-5bR">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
-                        <items>
-                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
-                                <connections>
-                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem title="Zoom" id="R4o-n2-Eq4">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <connections>
-                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
-                                </connections>
-                            </menuItem>
-                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
-                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
-                                <modifierMask key="keyEquivalentModifierMask"/>
-                                <connections>
-                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
-                                </connections>
-                            </menuItem>
-                        </items>
-                    </menu>
-                </menuItem>
-                <menuItem title="Help" id="EPT-qC-fAb">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <menu key="submenu" title="Help" systemMenu="help" id="rJ0-wn-3NY"/>
-                </menuItem>
-            </items>
-            <point key="canvasLocation" x="142" y="-258"/>
-        </menu>
-        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
-            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
-            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
-            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
-            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
-                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
-                <autoresizingMask key="autoresizingMask"/>
-            </view>
-        </window>
-    </objects>
-</document>

-// Application-level settings for the Runner target.
-//
-// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
-// future. If not, the values below would default to using the project name when this becomes a
-// 'flutter create' template.
-
-// The application's name. By default this is also the title of the Flutter window.
-PRODUCT_NAME = sherpa_onnx
-
-// The application's bundle identifier
-PRODUCT_BUNDLE_IDENTIFIER = com.k2fsa.sherpa.onnx
-
-// The copyright displayed in application information
-PRODUCT_COPYRIGHT = Copyright © 2024 Next-gen Kaldi. All rights reserved.

-#include "../../Flutter/Flutter-Debug.xcconfig"
-#include "Warnings.xcconfig"

-#include "../../Flutter/Flutter-Release.xcconfig"
-#include "Warnings.xcconfig"

-WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
-GCC_WARN_UNDECLARED_SELECTOR = YES
-CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
-CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
-CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
-CLANG_WARN_PRAGMA_PACK = YES
-CLANG_WARN_STRICT_PROTOTYPES = YES
-CLANG_WARN_COMMA = YES
-GCC_WARN_STRICT_SELECTOR_MATCH = YES
-CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
-CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
-GCC_WARN_SHADOW = YES
-CLANG_WARN_UNREACHABLE_CODE = YES

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>com.apple.security.app-sandbox</key>
-	<true/>
-	<key>com.apple.security.cs.allow-jit</key>
-	<true/>
-	<key>com.apple.security.device.audio-input</key>
-	<true/>
-	<key>com.apple.security.network.server</key>
-	<true/>
-</dict>
-</plist>

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>NSMicrophoneUsageDescription</key>
-	<string>Need microphone access for Next-gen kaldi to work</string>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>$(DEVELOPMENT_LANGUAGE)</string>
-	<key>CFBundleExecutable</key>
-	<string>$(EXECUTABLE_NAME)</string>
-	<key>CFBundleIconFile</key>
-	<string></string>
-	<key>CFBundleIdentifier</key>
-	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>$(PRODUCT_NAME)</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleShortVersionString</key>
-	<string>$(FLUTTER_BUILD_NAME)</string>
-	<key>CFBundleVersion</key>
-	<string>$(FLUTTER_BUILD_NUMBER)</string>
-	<key>LSMinimumSystemVersion</key>
-	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
-	<key>NSHumanReadableCopyright</key>
-	<string>$(PRODUCT_COPYRIGHT)</string>
-	<key>NSMainNibFile</key>
-	<string>MainMenu</string>
-	<key>NSPrincipalClass</key>
-	<string>NSApplication</string>
-</dict>
-</plist>

-import Cocoa
-import FlutterMacOS
-
-class MainFlutterWindow: NSWindow {
-  override func awakeFromNib() {
-    let flutterViewController = FlutterViewController()
-    let windowFrame = self.frame
-    self.contentViewController = flutterViewController
-    self.setFrame(windowFrame, display: true)
-
-    RegisterGeneratedPlugins(registry: flutterViewController)
-
-    super.awakeFromNib()
-  }
-}

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>com.apple.security.app-sandbox</key>
-	<true/>
-	<key>com.apple.security.device.audio-input</key>
-	<true/>
-</dict>
-</plist>

-import Cocoa
-import FlutterMacOS
-import XCTest
-
-class RunnerTests: XCTestCase {
-
-  func testExample() {
-    // If you add code to the Runner application, consider adding tests here.
-    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
-  }
-
-}

-name: hello_sherpa_onnx
-description: "Demonstrates how to use the sherpa_onnx ffi plugin."
-# The following line prevents the package from being accidentally published to
-# pub.dev using `flutter pub publish`. This is preferred for private packages.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
-
-# The following defines the version and build number for your application.
-# A version number is three numbers separated by dots, like 1.2.43
-# followed by an optional build number separated by a +.
-# Both the version and the builder number may be overridden in flutter
-# build by specifying --build-name and --build-number, respectively.
-# In Android, build-name is used as versionName while build-number used as versionCode.
-# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
-# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
-# Read more about iOS versioning at
-# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-# In Windows, build-name is used as the major, minor, and patch parts
-# of the product and file versions while build-number is used as the build suffix.
-version: 1.0.0+1
-
-environment:
-  sdk: '>=3.4.0 <4.0.0'
-
-# Dependencies specify other packages that your package needs in order to work.
-# To automatically upgrade your package dependencies to the latest versions
-# consider running `flutter pub upgrade --major-versions`. Alternatively,
-# dependencies can be manually updated by changing the version numbers below to
-# the latest version available on pub.dev. To see which dependencies have newer
-# versions available, run `flutter pub outdated`.
-dependencies:
-  flutter:
-    sdk: flutter
-
-  path_provider: ^2.1.3
-  path: ^1.9.0
-  record: ^5.1.0
-  url_launcher: ^6.2.6
-
-  sherpa_onnx:
-    # When depending on this package from a real application you should use:
-    #   sherpa_onnx: ^x.y.z
-    # See https://dart.dev/tools/pub/dependencies#version-constraints
-    # The example app is bundled with the plugin so we use a path dependency on
-    # the parent directory to use the current plugin's version.
-    path: ../
-
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.6
-
-dev_dependencies:
-  flutter_test:
-    sdk: flutter
-
-  # The "flutter_lints" package below contains a set of recommended lints to
-  # encourage good coding practices. The lint set provided by the package is
-  # activated in the `analysis_options.yaml` file located at the root of your
-  # package. See that file for information about deactivating specific lint
-  # rules and activating additional ones.
-  flutter_lints: ^3.0.0
-
-# For information on the generic Dart part of this file, see the
-# following page: https://dart.dev/tools/pub/pubspec
-
-# The following section is specific to Flutter packages.
-flutter:
-
-  # The following line ensures that the Material Icons font is
-  # included with your application, so that you can use the icons in
-  # the material Icons class.
-  uses-material-design: true
-
-  # To add assets to your application, add an assets section, like this:
-  assets:
-    - assets/
-    - assets/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/
-    # - assets/sherpa-onnx-paraformer-zh-2023-03-28/
-    # - assets/sherpa-onnx-paraformer-zh-2023-03-28/test_wavs/
-  #   - assets/sr-data/enroll/
-  #   - assets/sr-data/test/
-  #   - images/a_dot_ham.jpeg
-
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware
-
-  # For details regarding adding assets from package dependencies, see
-  # https://flutter.dev/assets-and-images/#from-packages
-
-  # To add custom fonts to your application, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts from package dependencies,
-  # see https://flutter.dev/custom-fonts/#from-packages

-flutter/ephemeral/
-
-# Visual Studio user-specific files.
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-
-# Visual Studio build-related files.
-x64/
-x86/
-
-# Visual Studio cache files
-# files ending in .cache can be ignored
-*.[Cc]ache
-# but keep track of directories ending in .cache
-!*.[Cc]ache/

-# Project-level configuration.
-cmake_minimum_required(VERSION 3.14)
-project(sherpa_onnx LANGUAGES CXX)
-
-# The name of the executable created for the application. Change this to change
-# the on-disk name of your application.
-set(BINARY_NAME "sherpa_onnx")
-
-# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
-# versions of CMake.
-cmake_policy(VERSION 3.14...3.25)
-
-# Define build configuration option.
-get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
-if(IS_MULTICONFIG)
-  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
-    CACHE STRING "" FORCE)
-else()
-  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
-    set(CMAKE_BUILD_TYPE "Debug" CACHE
-      STRING "Flutter build mode" FORCE)
-    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
-      "Debug" "Profile" "Release")
-  endif()
-endif()
-# Define settings for the Profile build mode.
-set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
-set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
-set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
-set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
-
-# Use Unicode for all projects.
-add_definitions(-DUNICODE -D_UNICODE)
-
-# Compilation settings that should be applied to most targets.
-#
-# Be cautious about adding new options here, as plugins use this function by
-# default. In most cases, you should add new options to specific targets instead
-# of modifying this function.
-function(APPLY_STANDARD_SETTINGS TARGET)
-  target_compile_features(${TARGET} PUBLIC cxx_std_17)
-  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
-  target_compile_options(${TARGET} PRIVATE /EHsc)
-  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
-  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
-endfunction()
-
-# Flutter library and tool build rules.
-set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
-add_subdirectory(${FLUTTER_MANAGED_DIR})
-
-# Application build; see runner/CMakeLists.txt.
-add_subdirectory("runner")
-
-
-# Generated plugin build rules, which manage building the plugins and adding
-# them to the application.
-include(flutter/generated_plugins.cmake)
-
-
-# === Installation ===
-# Support files are copied into place next to the executable, so that it can
-# run in place. This is done instead of making a separate bundle (as on Linux)
-# so that building and running from within Visual Studio will work.
-set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
-# Make the "install" step default, as it's required to run.
-set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
-endif()
-
-set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
-set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
-
-install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-  COMPONENT Runtime)
-
-if(PLUGIN_BUNDLED_LIBRARIES)
-  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
-    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()
-
-# Copy the native assets provided by the build.dart from all packages.
-set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/windows/")
-install(DIRECTORY "${NATIVE_ASSETS_DIR}"
-   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-   COMPONENT Runtime)
-
-# Fully re-copy the assets directory on each build to avoid having stale files
-# from a previous install.
-set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
-install(CODE "
-  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
-  " COMPONENT Runtime)
-install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
-  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
-
-# Install the AOT library on non-Debug builds only.
-install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
-  CONFIGURATIONS Profile;Release
-  COMPONENT Runtime)

-# This file controls Flutter-level build steps. It should not be edited.
-cmake_minimum_required(VERSION 3.14)
-
-set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
-
-# Configuration provided via flutter tool.
-include(${EPHEMERAL_DIR}/generated_config.cmake)
-
-# TODO: Move the rest of this into files in ephemeral. See
-# https://github.com/flutter/flutter/issues/57146.
-set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
-
-# Set fallback configurations for older versions of the flutter tool.
-if (NOT DEFINED FLUTTER_TARGET_PLATFORM)
-  set(FLUTTER_TARGET_PLATFORM "windows-x64")
-endif()
-
-# === Flutter Library ===
-set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
-
-# Published to parent scope for install step.
-set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
-set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
-set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
-set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
-
-list(APPEND FLUTTER_LIBRARY_HEADERS
-  "flutter_export.h"
-  "flutter_windows.h"
-  "flutter_messenger.h"
-  "flutter_plugin_registrar.h"
-  "flutter_texture_registrar.h"
-)
-list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
-add_library(flutter INTERFACE)
-target_include_directories(flutter INTERFACE
-  "${EPHEMERAL_DIR}"
-)
-target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
-add_dependencies(flutter flutter_assemble)
-
-# === Wrapper ===
-list(APPEND CPP_WRAPPER_SOURCES_CORE
-  "core_implementations.cc"
-  "standard_codec.cc"
-)
-list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
-list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
-  "plugin_registrar.cc"
-)
-list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
-list(APPEND CPP_WRAPPER_SOURCES_APP
-  "flutter_engine.cc"
-  "flutter_view_controller.cc"
-)
-list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
-
-# Wrapper sources needed for a plugin.
-add_library(flutter_wrapper_plugin STATIC
-  ${CPP_WRAPPER_SOURCES_CORE}
-  ${CPP_WRAPPER_SOURCES_PLUGIN}
-)
-apply_standard_settings(flutter_wrapper_plugin)
-set_target_properties(flutter_wrapper_plugin PROPERTIES
-  POSITION_INDEPENDENT_CODE ON)
-set_target_properties(flutter_wrapper_plugin PROPERTIES
-  CXX_VISIBILITY_PRESET hidden)
-target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
-target_include_directories(flutter_wrapper_plugin PUBLIC
-  "${WRAPPER_ROOT}/include"
-)
-add_dependencies(flutter_wrapper_plugin flutter_assemble)
-
-# Wrapper sources needed for the runner.
-add_library(flutter_wrapper_app STATIC
-  ${CPP_WRAPPER_SOURCES_CORE}
-  ${CPP_WRAPPER_SOURCES_APP}
-)
-apply_standard_settings(flutter_wrapper_app)
-target_link_libraries(flutter_wrapper_app PUBLIC flutter)
-target_include_directories(flutter_wrapper_app PUBLIC
-  "${WRAPPER_ROOT}/include"
-)
-add_dependencies(flutter_wrapper_app flutter_assemble)
-
-# === Flutter tool backend ===
-# _phony_ is a non-existent file to force this command to run every time,
-# since currently there's no way to get a full input/output list from the
-# flutter tool.
-set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
-set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
-add_custom_command(
-  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
-    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
-    ${CPP_WRAPPER_SOURCES_APP}
-    ${PHONY_OUTPUT}
-  COMMAND ${CMAKE_COMMAND} -E env
-    ${FLUTTER_TOOL_ENVIRONMENT}
-    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
-      ${FLUTTER_TARGET_PLATFORM} $<CONFIG>
-  VERBATIM
-)
-add_custom_target(flutter_assemble DEPENDS
-  "${FLUTTER_LIBRARY}"
-  ${FLUTTER_LIBRARY_HEADERS}
-  ${CPP_WRAPPER_SOURCES_CORE}
-  ${CPP_WRAPPER_SOURCES_PLUGIN}
-  ${CPP_WRAPPER_SOURCES_APP}
-)

-cmake_minimum_required(VERSION 3.14)
-project(runner LANGUAGES CXX)
-
-# Define the application target. To change its name, change BINARY_NAME in the
-# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
-# work.
-#
-# Any new source files that you add to the application should be added here.
-add_executable(${BINARY_NAME} WIN32
-  "flutter_window.cpp"
-  "main.cpp"
-  "utils.cpp"
-  "win32_window.cpp"
-  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
-  "Runner.rc"
-  "runner.exe.manifest"
-)
-
-# Apply the standard set of build settings. This can be removed for applications
-# that need different build settings.
-apply_standard_settings(${BINARY_NAME})
-
-# Add preprocessor definitions for the build version.
-target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION=\"${FLUTTER_VERSION}\"")
-target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MAJOR=${FLUTTER_VERSION_MAJOR}")
-target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MINOR=${FLUTTER_VERSION_MINOR}")
-target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_PATCH=${FLUTTER_VERSION_PATCH}")
-target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_BUILD=${FLUTTER_VERSION_BUILD}")
-
-# Disable Windows macros that collide with C++ standard library functions.
-target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
-
-# Add dependency libraries and include directories. Add any application-specific
-# dependencies here.
-target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
-target_link_libraries(${BINARY_NAME} PRIVATE "dwmapi.lib")
-target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
-
-# Run the Flutter tool portions of the build. This must not be removed.
-add_dependencies(${BINARY_NAME} flutter_assemble)

-// Microsoft Visual C++ generated resource script.
-//
-#pragma code_page(65001)
-#include "resource.h"
-
-#define APSTUDIO_READONLY_SYMBOLS
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 2 resource.
-//
-#include "winres.h"
-
-/////////////////////////////////////////////////////////////////////////////
-#undef APSTUDIO_READONLY_SYMBOLS
-
-/////////////////////////////////////////////////////////////////////////////
-// English (United States) resources
-
-#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
-LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
-
-#ifdef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// TEXTINCLUDE
-//
-
-1 TEXTINCLUDE
-BEGIN
-    "resource.h\0"
-END
-
-2 TEXTINCLUDE
-BEGIN
-    "#include ""winres.h""\r\n"
-    "\0"
-END
-
-3 TEXTINCLUDE
-BEGIN
-    "\r\n"
-    "\0"
-END
-
-#endif    // APSTUDIO_INVOKED
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Icon
-//
-
-// Icon with lowest ID value placed first to ensure application icon
-// remains consistent on all systems.
-IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Version
-//
-
-#if defined(FLUTTER_VERSION_MAJOR) && defined(FLUTTER_VERSION_MINOR) && defined(FLUTTER_VERSION_PATCH) && defined(FLUTTER_VERSION_BUILD)
-#define VERSION_AS_NUMBER FLUTTER_VERSION_MAJOR,FLUTTER_VERSION_MINOR,FLUTTER_VERSION_PATCH,FLUTTER_VERSION_BUILD
-#else
-#define VERSION_AS_NUMBER 1,0,0,0
-#endif
-
-#if defined(FLUTTER_VERSION)
-#define VERSION_AS_STRING FLUTTER_VERSION
-#else
-#define VERSION_AS_STRING "1.0.0"
-#endif
-
-VS_VERSION_INFO VERSIONINFO
- FILEVERSION VERSION_AS_NUMBER
- PRODUCTVERSION VERSION_AS_NUMBER
- FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
-#ifdef _DEBUG
- FILEFLAGS VS_FF_DEBUG
-#else
- FILEFLAGS 0x0L
-#endif
- FILEOS VOS__WINDOWS32
- FILETYPE VFT_APP
- FILESUBTYPE 0x0L
-BEGIN
-    BLOCK "StringFileInfo"
-    BEGIN
-        BLOCK "040904e4"
-        BEGIN
-            VALUE "CompanyName", "Next-gen Kaldi" "\0"
-            VALUE "FileDescription", "sherpa_onnx" "\0"
-            VALUE "FileVersion", VERSION_AS_STRING "\0"
-            VALUE "InternalName", "sherpa_onnx" "\0"
-            VALUE "LegalCopyright", "Copyright (C) 2024 Next-gen Kaldi. All rights reserved." "\0"
-            VALUE "OriginalFilename", "sherpa_onnx.exe" "\0"
-            VALUE "ProductName", "sherpa_onnx" "\0"
-            VALUE "ProductVersion", VERSION_AS_STRING "\0"
-        END
-    END
-    BLOCK "VarFileInfo"
-    BEGIN
-        VALUE "Translation", 0x409, 1252
-    END
-END
-
-#endif    // English (United States) resources
-/////////////////////////////////////////////////////////////////////////////
-
-
-
-#ifndef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 3 resource.
-//
-
-
-/////////////////////////////////////////////////////////////////////////////
-#endif    // not APSTUDIO_INVOKED

-#include "flutter_window.h"
-
-#include <optional>
-
-#include "flutter/generated_plugin_registrant.h"
-
-FlutterWindow::FlutterWindow(const flutter::DartProject& project)
-    : project_(project) {}
-
-FlutterWindow::~FlutterWindow() {}
-
-bool FlutterWindow::OnCreate() {
-  if (!Win32Window::OnCreate()) {
-    return false;
-  }
-
-  RECT frame = GetClientArea();
-
-  // The size here must match the window dimensions to avoid unnecessary surface
-  // creation / destruction in the startup path.
-  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
-      frame.right - frame.left, frame.bottom - frame.top, project_);
-  // Ensure that basic setup of the controller was successful.
-  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
-    return false;
-  }
-  RegisterPlugins(flutter_controller_->engine());
-  SetChildContent(flutter_controller_->view()->GetNativeWindow());
-
-  flutter_controller_->engine()->SetNextFrameCallback([&]() {
-    this->Show();
-  });
-
-  // Flutter can complete the first frame before the "show window" callback is
-  // registered. The following call ensures a frame is pending to ensure the
-  // window is shown. It is a no-op if the first frame hasn't completed yet.
-  flutter_controller_->ForceRedraw();
-
-  return true;
-}
-
-void FlutterWindow::OnDestroy() {
-  if (flutter_controller_) {
-    flutter_controller_ = nullptr;
-  }
-
-  Win32Window::OnDestroy();
-}
-
-LRESULT
-FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
-                              WPARAM const wparam,
-                              LPARAM const lparam) noexcept {
-  // Give Flutter, including plugins, an opportunity to handle window messages.
-  if (flutter_controller_) {
-    std::optional<LRESULT> result =
-        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
-                                                      lparam);
-    if (result) {
-      return *result;
-    }
-  }
-
-  switch (message) {
-    case WM_FONTCHANGE:
-      flutter_controller_->engine()->ReloadSystemFonts();
-      break;
-  }
-
-  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
-}

-#ifndef RUNNER_FLUTTER_WINDOW_H_
-#define RUNNER_FLUTTER_WINDOW_H_
-
-#include <flutter/dart_project.h>
-#include <flutter/flutter_view_controller.h>
-
-#include <memory>
-
-#include "win32_window.h"
-
-// A window that does nothing but host a Flutter view.
-class FlutterWindow : public Win32Window {
- public:
-  // Creates a new FlutterWindow hosting a Flutter view running |project|.
-  explicit FlutterWindow(const flutter::DartProject& project);
-  virtual ~FlutterWindow();
-
- protected:
-  // Win32Window:
-  bool OnCreate() override;
-  void OnDestroy() override;
-  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
-                         LPARAM const lparam) noexcept override;
-
- private:
-  // The project to run.
-  flutter::DartProject project_;
-
-  // The Flutter instance hosted by this window.
-  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
-};
-
-#endif  // RUNNER_FLUTTER_WINDOW_H_

-#include <flutter/dart_project.h>
-#include <flutter/flutter_view_controller.h>
-#include <windows.h>
-
-#include "flutter_window.h"
-#include "utils.h"
-
-int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
-                      _In_ wchar_t *command_line, _In_ int show_command) {
-  // Attach to console when present (e.g., 'flutter run') or create a
-  // new console when running with a debugger.
-  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
-    CreateAndAttachConsole();
-  }
-
-  // Initialize COM, so that it is available for use in the library and/or
-  // plugins.
-  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
-
-  flutter::DartProject project(L"data");
-
-  std::vector<std::string> command_line_arguments =
-      GetCommandLineArguments();
-
-  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
-
-  FlutterWindow window(project);
-  Win32Window::Point origin(10, 10);
-  Win32Window::Size size(1280, 720);
-  if (!window.Create(L"sherpa_onnx", origin, size)) {
-    return EXIT_FAILURE;
-  }
-  window.SetQuitOnClose(true);
-
-  ::MSG msg;
-  while (::GetMessage(&msg, nullptr, 0, 0)) {
-    ::TranslateMessage(&msg);
-    ::DispatchMessage(&msg);
-  }
-
-  ::CoUninitialize();
-  return EXIT_SUCCESS;
-}

-//{{NO_DEPENDENCIES}}
-// Microsoft Visual C++ generated include file.
-// Used by Runner.rc
-//
-#define IDI_APP_ICON                    101
-
-// Next default values for new objects
-//
-#ifdef APSTUDIO_INVOKED
-#ifndef APSTUDIO_READONLY_SYMBOLS
-#define _APS_NEXT_RESOURCE_VALUE        102
-#define _APS_NEXT_COMMAND_VALUE         40001
-#define _APS_NEXT_CONTROL_VALUE         1001
-#define _APS_NEXT_SYMED_VALUE           101
-#endif
-#endif

-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <application xmlns="urn:schemas-microsoft-com:asm.v3">
-    <windowsSettings>
-      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
-    </windowsSettings>
-  </application>
-  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
-    <application>
-      <!-- Windows 10 and Windows 11 -->
-      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
-      <!-- Windows 8.1 -->
-      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
-      <!-- Windows 8 -->
-      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
-      <!-- Windows 7 -->
-      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
-    </application>
-  </compatibility>
-</assembly>

-#include "utils.h"
-
-#include <flutter_windows.h>
-#include <io.h>
-#include <stdio.h>
-#include <windows.h>
-
-#include <iostream>
-
-void CreateAndAttachConsole() {
-  if (::AllocConsole()) {
-    FILE *unused;
-    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
-      _dup2(_fileno(stdout), 1);
-    }
-    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
-      _dup2(_fileno(stdout), 2);
-    }
-    std::ios::sync_with_stdio();
-    FlutterDesktopResyncOutputStreams();
-  }
-}
-
-std::vector<std::string> GetCommandLineArguments() {
-  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
-  int argc;
-  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
-  if (argv == nullptr) {
-    return std::vector<std::string>();
-  }
-
-  std::vector<std::string> command_line_arguments;
-
-  // Skip the first argument as it's the binary name.
-  for (int i = 1; i < argc; i++) {
-    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
-  }
-
-  ::LocalFree(argv);
-
-  return command_line_arguments;
-}
-
-std::string Utf8FromUtf16(const wchar_t* utf16_string) {
-  if (utf16_string == nullptr) {
-    return std::string();
-  }
-  unsigned int target_length = ::WideCharToMultiByte(
-      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
-      -1, nullptr, 0, nullptr, nullptr)
-    -1; // remove the trailing null character
-  int input_length = (int)wcslen(utf16_string);
-  std::string utf8_string;
-  if (target_length == 0 || target_length > utf8_string.max_size()) {
-    return utf8_string;
-  }
-  utf8_string.resize(target_length);
-  int converted_length = ::WideCharToMultiByte(
-      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
-      input_length, utf8_string.data(), target_length, nullptr, nullptr);
-  if (converted_length == 0) {
-    return std::string();
-  }
-  return utf8_string;
-}

-#ifndef RUNNER_UTILS_H_
-#define RUNNER_UTILS_H_
-
-#include <string>
-#include <vector>
-
-// Creates a console for the process, and redirects stdout and stderr to
-// it for both the runner and the Flutter library.
-void CreateAndAttachConsole();
-
-// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
-// encoded in UTF-8. Returns an empty std::string on failure.
-std::string Utf8FromUtf16(const wchar_t* utf16_string);
-
-// Gets the command line arguments passed in as a std::vector<std::string>,
-// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
-std::vector<std::string> GetCommandLineArguments();
-
-#endif  // RUNNER_UTILS_H_

-#include "win32_window.h"
-
-#include <dwmapi.h>
-#include <flutter_windows.h>
-
-#include "resource.h"
-
-namespace {
-
-/// Window attribute that enables dark mode window decorations.
-///
-/// Redefined in case the developer's machine has a Windows SDK older than
-/// version 10.0.22000.0.
-/// See: https://docs.microsoft.com/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute
-#ifndef DWMWA_USE_IMMERSIVE_DARK_MODE
-#define DWMWA_USE_IMMERSIVE_DARK_MODE 20
-#endif
-
-constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
-
-/// Registry key for app theme preference.
-///
-/// A value of 0 indicates apps should use dark mode. A non-zero or missing
-/// value indicates apps should use light mode.
-constexpr const wchar_t kGetPreferredBrightnessRegKey[] =
-  L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize";
-constexpr const wchar_t kGetPreferredBrightnessRegValue[] = L"AppsUseLightTheme";
-
-// The number of Win32Window objects that currently exist.
-static int g_active_window_count = 0;
-
-using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
-
-// Scale helper to convert logical scaler values to physical using passed in
-// scale factor
-int Scale(int source, double scale_factor) {
-  return static_cast<int>(source * scale_factor);
-}
-
-// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
-// This API is only needed for PerMonitor V1 awareness mode.
-void EnableFullDpiSupportIfAvailable(HWND hwnd) {
-  HMODULE user32_module = LoadLibraryA("User32.dll");
-  if (!user32_module) {
-    return;
-  }
-  auto enable_non_client_dpi_scaling =
-      reinterpret_cast<EnableNonClientDpiScaling*>(
-          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
-  if (enable_non_client_dpi_scaling != nullptr) {
-    enable_non_client_dpi_scaling(hwnd);
-  }
-  FreeLibrary(user32_module);
-}
-
-}  // namespace
-
-// Manages the Win32Window's window class registration.
-class WindowClassRegistrar {
- public:
-  ~WindowClassRegistrar() = default;
-
-  // Returns the singleton registrar instance.
-  static WindowClassRegistrar* GetInstance() {
-    if (!instance_) {
-      instance_ = new WindowClassRegistrar();
-    }
-    return instance_;
-  }
-
-  // Returns the name of the window class, registering the class if it hasn't
-  // previously been registered.
-  const wchar_t* GetWindowClass();
-
-  // Unregisters the window class. Should only be called if there are no
-  // instances of the window.
-  void UnregisterWindowClass();
-
- private:
-  WindowClassRegistrar() = default;
-
-  static WindowClassRegistrar* instance_;
-
-  bool class_registered_ = false;
-};
-
-WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
-
-const wchar_t* WindowClassRegistrar::GetWindowClass() {
-  if (!class_registered_) {
-    WNDCLASS window_class{};
-    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
-    window_class.lpszClassName = kWindowClassName;
-    window_class.style = CS_HREDRAW | CS_VREDRAW;
-    window_class.cbClsExtra = 0;
-    window_class.cbWndExtra = 0;
-    window_class.hInstance = GetModuleHandle(nullptr);
-    window_class.hIcon =
-        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
-    window_class.hbrBackground = 0;
-    window_class.lpszMenuName = nullptr;
-    window_class.lpfnWndProc = Win32Window::WndProc;
-    RegisterClass(&window_class);
-    class_registered_ = true;
-  }
-  return kWindowClassName;
-}
-
-void WindowClassRegistrar::UnregisterWindowClass() {
-  UnregisterClass(kWindowClassName, nullptr);
-  class_registered_ = false;
-}
-
-Win32Window::Win32Window() {
-  ++g_active_window_count;
-}
-
-Win32Window::~Win32Window() {
-  --g_active_window_count;
-  Destroy();
-}
-
-bool Win32Window::Create(const std::wstring& title,
-                         const Point& origin,
-                         const Size& size) {
-  Destroy();
-
-  const wchar_t* window_class =
-      WindowClassRegistrar::GetInstance()->GetWindowClass();
-
-  const POINT target_point = {static_cast<LONG>(origin.x),
-                              static_cast<LONG>(origin.y)};
-  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
-  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
-  double scale_factor = dpi / 96.0;
-
-  HWND window = CreateWindow(
-      window_class, title.c_str(), WS_OVERLAPPEDWINDOW,
-      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
-      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
-      nullptr, nullptr, GetModuleHandle(nullptr), this);
-
-  if (!window) {
-    return false;
-  }
-
-  UpdateTheme(window);
-
-  return OnCreate();
-}
-
-bool Win32Window::Show() {
-  return ShowWindow(window_handle_, SW_SHOWNORMAL);
-}
-
-// static
-LRESULT CALLBACK Win32Window::WndProc(HWND const window,
-                                      UINT const message,
-                                      WPARAM const wparam,
-                                      LPARAM const lparam) noexcept {
-  if (message == WM_NCCREATE) {
-    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
-    SetWindowLongPtr(window, GWLP_USERDATA,
-                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
-
-    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
-    EnableFullDpiSupportIfAvailable(window);
-    that->window_handle_ = window;
-  } else if (Win32Window* that = GetThisFromHandle(window)) {
-    return that->MessageHandler(window, message, wparam, lparam);
-  }
-
-  return DefWindowProc(window, message, wparam, lparam);
-}
-
-LRESULT
-Win32Window::MessageHandler(HWND hwnd,
-                            UINT const message,
-                            WPARAM const wparam,
-                            LPARAM const lparam) noexcept {
-  switch (message) {
-    case WM_DESTROY:
-      window_handle_ = nullptr;
-      Destroy();
-      if (quit_on_close_) {
-        PostQuitMessage(0);
-      }
-      return 0;
-
-    case WM_DPICHANGED: {
-      auto newRectSize = reinterpret_cast<RECT*>(lparam);
-      LONG newWidth = newRectSize->right - newRectSize->left;
-      LONG newHeight = newRectSize->bottom - newRectSize->top;
-
-      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
-                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
-
-      return 0;
-    }
-    case WM_SIZE: {
-      RECT rect = GetClientArea();
-      if (child_content_ != nullptr) {
-        // Size and position the child window.
-        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
-                   rect.bottom - rect.top, TRUE);
-      }
-      return 0;
-    }
-
-    case WM_ACTIVATE:
-      if (child_content_ != nullptr) {
-        SetFocus(child_content_);
-      }
-      return 0;
-
-    case WM_DWMCOLORIZATIONCOLORCHANGED:
-      UpdateTheme(hwnd);
-      return 0;
-  }
-
-  return DefWindowProc(window_handle_, message, wparam, lparam);
-}
-
-void Win32Window::Destroy() {
-  OnDestroy();
-
-  if (window_handle_) {
-    DestroyWindow(window_handle_);
-    window_handle_ = nullptr;
-  }
-  if (g_active_window_count == 0) {
-    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
-  }
-}
-
-Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
-  return reinterpret_cast<Win32Window*>(
-      GetWindowLongPtr(window, GWLP_USERDATA));
-}
-
-void Win32Window::SetChildContent(HWND content) {
-  child_content_ = content;
-  SetParent(content, window_handle_);
-  RECT frame = GetClientArea();
-
-  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
-             frame.bottom - frame.top, true);
-
-  SetFocus(child_content_);
-}
-
-RECT Win32Window::GetClientArea() {
-  RECT frame;
-  GetClientRect(window_handle_, &frame);
-  return frame;
-}
-
-HWND Win32Window::GetHandle() {
-  return window_handle_;
-}
-
-void Win32Window::SetQuitOnClose(bool quit_on_close) {
-  quit_on_close_ = quit_on_close;
-}
-
-bool Win32Window::OnCreate() {
-  // No-op; provided for subclasses.
-  return true;
-}
-
-void Win32Window::OnDestroy() {
-  // No-op; provided for subclasses.
-}
-
-void Win32Window::UpdateTheme(HWND const window) {
-  DWORD light_mode;
-  DWORD light_mode_size = sizeof(light_mode);
-  LSTATUS result = RegGetValue(HKEY_CURRENT_USER, kGetPreferredBrightnessRegKey,
-                               kGetPreferredBrightnessRegValue,
-                               RRF_RT_REG_DWORD, nullptr, &light_mode,
-                               &light_mode_size);
-
-  if (result == ERROR_SUCCESS) {
-    BOOL enable_dark_mode = light_mode == 0;
-    DwmSetWindowAttribute(window, DWMWA_USE_IMMERSIVE_DARK_MODE,
-                          &enable_dark_mode, sizeof(enable_dark_mode));
-  }
-}

-#ifndef RUNNER_WIN32_WINDOW_H_
-#define RUNNER_WIN32_WINDOW_H_
-
-#include <windows.h>
-
-#include <functional>
-#include <memory>
-#include <string>
-
-// A class abstraction for a high DPI-aware Win32 Window. Intended to be
-// inherited from by classes that wish to specialize with custom
-// rendering and input handling
-class Win32Window {
- public:
-  struct Point {
-    unsigned int x;
-    unsigned int y;
-    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
-  };
-
-  struct Size {
-    unsigned int width;
-    unsigned int height;
-    Size(unsigned int width, unsigned int height)
-        : width(width), height(height) {}
-  };
-
-  Win32Window();
-  virtual ~Win32Window();
-
-  // Creates a win32 window with |title| that is positioned and sized using
-  // |origin| and |size|. New windows are created on the default monitor. Window
-  // sizes are specified to the OS in physical pixels, hence to ensure a
-  // consistent size this function will scale the inputted width and height as
-  // as appropriate for the default monitor. The window is invisible until
-  // |Show| is called. Returns true if the window was created successfully.
-  bool Create(const std::wstring& title, const Point& origin, const Size& size);
-
-  // Show the current window. Returns true if the window was successfully shown.
-  bool Show();
-
-  // Release OS resources associated with window.
-  void Destroy();
-
-  // Inserts |content| into the window tree.
-  void SetChildContent(HWND content);
-
-  // Returns the backing Window handle to enable clients to set icon and other
-  // window properties. Returns nullptr if the window has been destroyed.
-  HWND GetHandle();
-
-  // If true, closing this window will quit the application.
-  void SetQuitOnClose(bool quit_on_close);
-
-  // Return a RECT representing the bounds of the current client area.
-  RECT GetClientArea();
-
- protected:
-  // Processes and route salient window messages for mouse handling,
-  // size change and DPI. Delegates handling of these to member overloads that
-  // inheriting classes can handle.
-  virtual LRESULT MessageHandler(HWND window,
-                                 UINT const message,
-                                 WPARAM const wparam,
-                                 LPARAM const lparam) noexcept;
-
-  // Called when CreateAndShow is called, allowing subclass window-related
-  // setup. Subclasses should return false if setup fails.
-  virtual bool OnCreate();
-
-  // Called when Destroy is called.
-  virtual void OnDestroy();
-
- private:
-  friend class WindowClassRegistrar;
-
-  // OS callback called by message pump. Handles the WM_NCCREATE message which
-  // is passed when the non-client area is being created and enables automatic
-  // non-client DPI scaling so that the non-client area automatically
-  // responds to changes in DPI. All other messages are handled by
-  // MessageHandler.
-  static LRESULT CALLBACK WndProc(HWND const window,
-                                  UINT const message,
-                                  WPARAM const wparam,
-                                  LPARAM const lparam) noexcept;
-
-  // Retrieves a class instance pointer for |window|
-  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
-
-  // Update the window frame's theme to match the system theme.
-  static void UpdateTheme(HWND const window);
-
-  bool quit_on_close_ = false;
-
-  // window handle for top level window.
-  HWND window_handle_ = nullptr;
-
-  // window handle for hosted content.
-  HWND child_content_ = nullptr;
-};
-
-#endif  // RUNNER_WIN32_WINDOW_H_

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:io';
-import 'dart:ffi';
-
-export 'src/feature_config.dart';
-export 'src/offline_recognizer.dart';
-export 'src/offline_stream.dart';
-export 'src/online_recognizer.dart';
-export 'src/online_stream.dart';
-export 'src/speaker_identification.dart';
-export 'src/tts.dart';
-export 'src/vad.dart';
-export 'src/wave_reader.dart';
-export 'src/wave_writer.dart';
-
-import 'src/sherpa_onnx_bindings.dart';
-
-String? _path;
-
-final DynamicLibrary _dylib = () {
-  if (Platform.isIOS) {
-    throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}');
-  }
-  if (Platform.isMacOS) {
-    if (_path == null) {
-      return DynamicLibrary.open('libsherpa-onnx-c-api.dylib');
-    } else {
-      return DynamicLibrary.open('$_path/libsherpa-onnx-c-api.dylib');
-    }
-  }
-
-  if (Platform.isAndroid || Platform.isLinux) {
-    if (_path == null) {
-      return DynamicLibrary.open('libsherpa-onnx-c-api.so');
-    } else {
-      return DynamicLibrary.open('$_path/libsherpa-onnx-c-api.so');
-    }
-  }
-
-  if (Platform.isWindows) {
-    if (_path == null) {
-      return DynamicLibrary.open('sherpa-onnx-c-api.dll');
-    } else {
-      return DynamicLibrary.open('$_path\\sherpa-onnx-c-api.dll');
-    }
-  }
-
-  throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}');
-}();
-
-void initBindings([String? p]) {
-  _path ??= p;
-  SherpaOnnxBindings.init(_dylib);
-}

-// Copyright (c)  2024  Xiaomi Corporation
-
-class FeatureConfig {
-  const FeatureConfig({this.sampleRate = 16000, this.featureDim = 80});
-
-  @override
-  String toString() {
-    return 'FeatureConfig(sampleRate: $sampleRate, featureDim: $featureDim)';
-  }
-
-  final int sampleRate;
-  final int featureDim;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:convert';
-import 'dart:ffi';
-
-import 'package:ffi/ffi.dart';
-
-import './feature_config.dart';
-import './offline_stream.dart';
-import './sherpa_onnx_bindings.dart';
-
-class OfflineTransducerModelConfig {
-  const OfflineTransducerModelConfig({
-    this.encoder = '',
-    this.decoder = '',
-    this.joiner = '',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineTransducerModelConfig(encoder: $encoder, decoder: $decoder, joiner: $joiner)';
-  }
-
-  final String encoder;
-  final String decoder;
-  final String joiner;
-}
-
-class OfflineParaformerModelConfig {
-  const OfflineParaformerModelConfig({this.model = ''});
-
-  @override
-  String toString() {
-    return 'OfflineParaformerModelConfig(model: $model)';
-  }
-
-  final String model;
-}
-
-class OfflineNemoEncDecCtcModelConfig {
-  const OfflineNemoEncDecCtcModelConfig({this.model = ''});
-
-  @override
-  String toString() {
-    return 'OfflineNemoEncDecCtcModelConfig(model: $model)';
-  }
-
-  final String model;
-}
-
-class OfflineWhisperModelConfig {
-  const OfflineWhisperModelConfig(
-      {this.encoder = '',
-      this.decoder = '',
-      this.language = '',
-      this.task = '',
-      this.tailPaddings = -1});
-
-  @override
-  String toString() {
-    return 'OfflineWhisperModelConfig(encoder: $encoder, decoder: $decoder, language: $language, task: $task, tailPaddings: $tailPaddings)';
-  }
-
-  final String encoder;
-  final String decoder;
-  final String language;
-  final String task;
-  final int tailPaddings;
-}
-
-class OfflineTdnnModelConfig {
-  const OfflineTdnnModelConfig({this.model = ''});
-
-  @override
-  String toString() {
-    return 'OfflineTdnnModelConfig(model: $model)';
-  }
-
-  final String model;
-}
-
-class OfflineLMConfig {
-  const OfflineLMConfig({this.model = '', this.scale = 1.0});
-
-  @override
-  String toString() {
-    return 'OfflineLMConfig(model: $model, scale: $scale)';
-  }
-
-  final String model;
-  final double scale;
-}
-
-class OfflineModelConfig {
-  const OfflineModelConfig({
-    this.transducer = const OfflineTransducerModelConfig(),
-    this.paraformer = const OfflineParaformerModelConfig(),
-    this.nemoCtc = const OfflineNemoEncDecCtcModelConfig(),
-    this.whisper = const OfflineWhisperModelConfig(),
-    this.tdnn = const OfflineTdnnModelConfig(),
-    required this.tokens,
-    this.numThreads = 1,
-    this.debug = true,
-    this.provider = 'cpu',
-    this.modelType = '',
-    this.modelingUnit = '',
-    this.bpeVocab = '',
-    this.telespeechCtc = '',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineModelConfig(transducer: $transducer, paraformer: $paraformer, nemoCtc: $nemoCtc, whisper: $whisper, tdnn: $tdnn, tokens: $tokens, numThreads: $numThreads, debug: $debug, provider: $provider, modelType: $modelType, modelingUnit: $modelingUnit, bpeVocab: $bpeVocab, telespeechCtc: $telespeechCtc)';
-  }
-
-  final OfflineTransducerModelConfig transducer;
-  final OfflineParaformerModelConfig paraformer;
-  final OfflineNemoEncDecCtcModelConfig nemoCtc;
-  final OfflineWhisperModelConfig whisper;
-  final OfflineTdnnModelConfig tdnn;
-
-  final String tokens;
-  final int numThreads;
-  final bool debug;
-  final String provider;
-  final String modelType;
-  final String modelingUnit;
-  final String bpeVocab;
-  final String telespeechCtc;
-}
-
-class OfflineRecognizerConfig {
-  const OfflineRecognizerConfig({
-    this.feat = const FeatureConfig(),
-    required this.model,
-    this.lm = const OfflineLMConfig(),
-    this.decodingMethod = 'greedy_search',
-    this.maxActivePaths = 4,
-    this.hotwordsFile = '',
-    this.hotwordsScore = 1.5,
-    this.ruleFsts = '',
-    this.ruleFars = '',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineRecognizerConfig(feat: $feat, model: $model, lm: $lm, decodingMethod: $decodingMethod, maxActivePaths: $maxActivePaths, hotwordsFile: $hotwordsFile, hotwordsScore: $hotwordsScore, ruleFsts: $ruleFsts, ruleFars: $ruleFars)';
-  }
-
-  final FeatureConfig feat;
-  final OfflineModelConfig model;
-  final OfflineLMConfig lm;
-  final String decodingMethod;
-
-  final int maxActivePaths;
-
-  final String hotwordsFile;
-
-  final double hotwordsScore;
-
-  final String ruleFsts;
-  final String ruleFars;
-}
-
-class OfflineRecognizerResult {
-  OfflineRecognizerResult(
-      {required this.text, required this.tokens, required this.timestamps});
-
-  @override
-  String toString() {
-    return 'OfflineRecognizerResult(text: $text, tokens: $tokens, timestamps: $timestamps)';
-  }
-
-  final String text;
-  final List<String> tokens;
-  final List<double> timestamps;
-}
-
-class OfflineRecognizer {
-  OfflineRecognizer._({required this.ptr, required this.config});
-
-  void free() {
-    SherpaOnnxBindings.destroyOfflineRecognizer?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// The user is responsible to call the OfflineRecognizer.free()
-  /// method of the returned instance to avoid memory leak.
-  factory OfflineRecognizer(OfflineRecognizerConfig config) {
-    final c = calloc<SherpaOnnxOfflineRecognizerConfig>();
-
-    c.ref.feat.sampleRate = config.feat.sampleRate;
-    c.ref.feat.featureDim = config.feat.featureDim;
-
-    // transducer
-    c.ref.model.transducer.encoder =
-        config.model.transducer.encoder.toNativeUtf8();
-    c.ref.model.transducer.decoder =
-        config.model.transducer.decoder.toNativeUtf8();
-    c.ref.model.transducer.joiner =
-        config.model.transducer.joiner.toNativeUtf8();
-
-    // paraformer
-    c.ref.model.paraformer.model = config.model.paraformer.model.toNativeUtf8();
-
-    // nemoCtc
-    c.ref.model.nemoCtc.model = config.model.nemoCtc.model.toNativeUtf8();
-
-    // whisper
-    c.ref.model.whisper.encoder = config.model.whisper.encoder.toNativeUtf8();
-
-    c.ref.model.whisper.decoder = config.model.whisper.decoder.toNativeUtf8();
-
-    c.ref.model.whisper.language = config.model.whisper.language.toNativeUtf8();
-
-    c.ref.model.whisper.task = config.model.whisper.task.toNativeUtf8();
-
-    c.ref.model.whisper.tailPaddings = config.model.whisper.tailPaddings;
-
-    c.ref.model.tdnn.model = config.model.tdnn.model.toNativeUtf8();
-
-    c.ref.model.tokens = config.model.tokens.toNativeUtf8();
-
-    c.ref.model.numThreads = config.model.numThreads;
-    c.ref.model.debug = config.model.debug ? 1 : 0;
-    c.ref.model.provider = config.model.provider.toNativeUtf8();
-    c.ref.model.modelType = config.model.modelType.toNativeUtf8();
-    c.ref.model.modelingUnit = config.model.modelingUnit.toNativeUtf8();
-    c.ref.model.bpeVocab = config.model.bpeVocab.toNativeUtf8();
-    c.ref.model.telespeechCtc = config.model.telespeechCtc.toNativeUtf8();
-
-    c.ref.lm.model = config.lm.model.toNativeUtf8();
-    c.ref.lm.scale = config.lm.scale;
-
-    c.ref.decodingMethod = config.decodingMethod.toNativeUtf8();
-    c.ref.maxActivePaths = config.maxActivePaths;
-
-    c.ref.hotwordsFile = config.hotwordsFile.toNativeUtf8();
-    c.ref.hotwordsScore = config.hotwordsScore;
-
-    c.ref.ruleFsts = config.ruleFsts.toNativeUtf8();
-    c.ref.ruleFars = config.ruleFars.toNativeUtf8();
-
-    final ptr = SherpaOnnxBindings.createOfflineRecognizer?.call(c) ?? nullptr;
-
-    calloc.free(c.ref.ruleFars);
-    calloc.free(c.ref.ruleFsts);
-    calloc.free(c.ref.hotwordsFile);
-    calloc.free(c.ref.decodingMethod);
-    calloc.free(c.ref.lm.model);
-    calloc.free(c.ref.model.telespeechCtc);
-    calloc.free(c.ref.model.bpeVocab);
-    calloc.free(c.ref.model.modelingUnit);
-    calloc.free(c.ref.model.modelType);
-    calloc.free(c.ref.model.provider);
-    calloc.free(c.ref.model.tokens);
-    calloc.free(c.ref.model.tdnn.model);
-    calloc.free(c.ref.model.whisper.task);
-    calloc.free(c.ref.model.whisper.language);
-    calloc.free(c.ref.model.whisper.decoder);
-    calloc.free(c.ref.model.whisper.encoder);
-    calloc.free(c.ref.model.nemoCtc.model);
-    calloc.free(c.ref.model.paraformer.model);
-    calloc.free(c.ref.model.transducer.encoder);
-    calloc.free(c.ref.model.transducer.decoder);
-    calloc.free(c.ref.model.transducer.joiner);
-    calloc.free(c);
-
-    return OfflineRecognizer._(ptr: ptr, config: config);
-  }
-
-  /// The user has to invoke stream.free() on the returned instance
-  /// to avoid memory leak
-  OfflineStream createStream() {
-    final p = SherpaOnnxBindings.createOfflineStream?.call(ptr) ?? nullptr;
-    return OfflineStream(ptr: p);
-  }
-
-  void decode(OfflineStream stream) {
-    SherpaOnnxBindings.decodeOfflineStream?.call(ptr, stream.ptr);
-  }
-
-  OfflineRecognizerResult getResult(OfflineStream stream) {
-    final json =
-        SherpaOnnxBindings.getOfflineStreamResultAsJson?.call(stream.ptr) ??
-            nullptr;
-    if (json == nullptr) {
-      return OfflineRecognizerResult(text: '', tokens: [], timestamps: []);
-    }
-
-    final parsedJson = jsonDecode(json.toDartString());
-
-    SherpaOnnxBindings.destroyOfflineStreamResultJson?.call(json);
-
-    return OfflineRecognizerResult(
-        text: parsedJson['text'],
-        tokens: List<String>.from(parsedJson['tokens']),
-        timestamps: List<double>.from(parsedJson['timestamps']));
-  }
-
-  Pointer<SherpaOnnxOfflineRecognizer> ptr;
-  OfflineRecognizerConfig config;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-class OfflineStream {
-  /// The user has to call OfflineStream.free() to avoid memory leak.
-  OfflineStream({required this.ptr});
-
-  void free() {
-    SherpaOnnxBindings.destroyOfflineStream?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// If you have List<double> data, then you can use
-  /// Float32List.fromList(data) to convert data to Float32List
-  ///
-  /// See
-  ///  https://api.flutter.dev/flutter/dart-core/List-class.html
-  /// and
-  ///  https://api.flutter.dev/flutter/dart-typed_data/Float32List-class.html
-  void acceptWaveform({required Float32List samples, required int sampleRate}) {
-    final n = samples.length;
-    final Pointer<Float> p = calloc<Float>(n);
-
-    final pList = p.asTypedList(n);
-    pList.setAll(0, samples);
-
-    SherpaOnnxBindings.acceptWaveformOffline?.call(ptr, sampleRate, p, n);
-
-    calloc.free(p);
-  }
-
-  Pointer<SherpaOnnxOfflineStream> ptr;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:convert';
-import 'dart:ffi';
-
-import 'package:ffi/ffi.dart';
-
-import './feature_config.dart';
-import './online_stream.dart';
-import './sherpa_onnx_bindings.dart';
-
-class OnlineTransducerModelConfig {
-  const OnlineTransducerModelConfig({
-    this.encoder = '',
-    this.decoder = '',
-    this.joiner = '',
-  });
-
-  @override
-  String toString() {
-    return 'OnlineTransducerModelConfig(encoder: $encoder, decoder: $decoder, joiner: $joiner)';
-  }
-
-  final String encoder;
-  final String decoder;
-  final String joiner;
-}
-
-class OnlineParaformerModelConfig {
-  const OnlineParaformerModelConfig({this.encoder = '', this.decoder = ''});
-
-  @override
-  String toString() {
-    return 'OnlineParaformerModelConfig(encoder: $encoder, decoder: $decoder)';
-  }
-
-  final String encoder;
-  final String decoder;
-}
-
-class OnlineZipformer2CtcModelConfig {
-  const OnlineZipformer2CtcModelConfig({this.model = ''});
-
-  @override
-  String toString() {
-    return 'OnlineZipformer2CtcModelConfig(model: $model)';
-  }
-
-  final String model;
-}
-
-class OnlineModelConfig {
-  const OnlineModelConfig({
-    this.transducer = const OnlineTransducerModelConfig(),
-    this.paraformer = const OnlineParaformerModelConfig(),
-    this.zipformer2Ctc = const OnlineZipformer2CtcModelConfig(),
-    required this.tokens,
-    this.numThreads = 1,
-    this.provider = 'cpu',
-    this.debug = true,
-    this.modelType = '',
-    this.modelingUnit = '',
-    this.bpeVocab = '',
-  });
-
-  @override
-  String toString() {
-    return 'OnlineModelConfig(transducer: $transducer, paraformer: $paraformer, zipformer2Ctc: $zipformer2Ctc, tokens: $tokens, numThreads: $numThreads, provider: $provider, debug: $debug, modelType: $modelType, modelingUnit: $modelingUnit, bpeVocab: $bpeVocab)';
-  }
-
-  final OnlineTransducerModelConfig transducer;
-  final OnlineParaformerModelConfig paraformer;
-  final OnlineZipformer2CtcModelConfig zipformer2Ctc;
-
-  final String tokens;
-
-  final int numThreads;
-
-  final String provider;
-
-  final bool debug;
-
-  final String modelType;
-
-  final String modelingUnit;
-
-  final String bpeVocab;
-}
-
-class OnlineCtcFstDecoderConfig {
-  const OnlineCtcFstDecoderConfig({this.graph = '', this.maxActive = 3000});
-
-  @override
-  String toString() {
-    return 'OnlineCtcFstDecoderConfig(graph: $graph, maxActive: $maxActive)';
-  }
-
-  final String graph;
-  final int maxActive;
-}
-
-class OnlineRecognizerConfig {
-  const OnlineRecognizerConfig({
-    this.feat = const FeatureConfig(),
-    required this.model,
-    this.decodingMethod = 'greedy_search',
-    this.maxActivePaths = 4,
-    this.enableEndpoint = true,
-    this.rule1MinTrailingSilence = 2.4,
-    this.rule2MinTrailingSilence = 1.2,
-    this.rule3MinUtteranceLength = 20,
-    this.hotwordsFile = '',
-    this.hotwordsScore = 1.5,
-    this.ctcFstDecoderConfig = const OnlineCtcFstDecoderConfig(),
-    this.ruleFsts = '',
-    this.ruleFars = '',
-  });
-
-  @override
-  String toString() {
-    return 'OnlineRecognizerConfig(feat: $feat, model: $model, decodingMethod: $decodingMethod, maxActivePaths: $maxActivePaths, enableEndpoint: $enableEndpoint, rule1MinTrailingSilence: $rule1MinTrailingSilence, rule2MinTrailingSilence: $rule2MinTrailingSilence, rule3MinUtteranceLength: $rule3MinUtteranceLength, hotwordsFile: $hotwordsFile, hotwordsScore: $hotwordsScore, ctcFstDecoderConfig: $ctcFstDecoderConfig, ruleFsts: $ruleFsts, ruleFars: $ruleFars)';
-  }
-
-  final FeatureConfig feat;
-  final OnlineModelConfig model;
-  final String decodingMethod;
-
-  final int maxActivePaths;
-
-  final bool enableEndpoint;
-
-  final double rule1MinTrailingSilence;
-
-  final double rule2MinTrailingSilence;
-
-  final double rule3MinUtteranceLength;
-
-  final String hotwordsFile;
-
-  final double hotwordsScore;
-
-  final OnlineCtcFstDecoderConfig ctcFstDecoderConfig;
-  final String ruleFsts;
-  final String ruleFars;
-}
-
-class OnlineRecognizerResult {
-  OnlineRecognizerResult(
-      {required this.text, required this.tokens, required this.timestamps});
-
-  @override
-  String toString() {
-    return 'OnlineRecognizerResult(text: $text, tokens: $tokens, timestamps: $timestamps)';
-  }
-
-  final String text;
-  final List<String> tokens;
-  final List<double> timestamps;
-}
-
-class OnlineRecognizer {
-  OnlineRecognizer._({required this.ptr, required this.config});
-
-  /// The user is responsible to call the OnlineRecognizer.free()
-  /// method of the returned instance to avoid memory leak.
-  factory OnlineRecognizer(OnlineRecognizerConfig config) {
-    final c = calloc<SherpaOnnxOnlineRecognizerConfig>();
-    c.ref.feat.sampleRate = config.feat.sampleRate;
-    c.ref.feat.featureDim = config.feat.featureDim;
-
-    // transducer
-    c.ref.model.transducer.encoder =
-        config.model.transducer.encoder.toNativeUtf8();
-    c.ref.model.transducer.decoder =
-        config.model.transducer.decoder.toNativeUtf8();
-    c.ref.model.transducer.joiner =
-        config.model.transducer.joiner.toNativeUtf8();
-
-    // paraformer
-    c.ref.model.paraformer.encoder =
-        config.model.paraformer.encoder.toNativeUtf8();
-    c.ref.model.paraformer.decoder =
-        config.model.paraformer.decoder.toNativeUtf8();
-
-    // zipformer2Ctc
-    c.ref.model.zipformer2Ctc.model =
-        config.model.zipformer2Ctc.model.toNativeUtf8();
-
-    c.ref.model.tokens = config.model.tokens.toNativeUtf8();
-    c.ref.model.numThreads = config.model.numThreads;
-    c.ref.model.provider = config.model.provider.toNativeUtf8();
-    c.ref.model.debug = config.model.debug ? 1 : 0;
-    c.ref.model.modelType = config.model.modelType.toNativeUtf8();
-    c.ref.model.modelingUnit = config.model.modelingUnit.toNativeUtf8();
-    c.ref.model.bpeVocab = config.model.bpeVocab.toNativeUtf8();
-
-    c.ref.decodingMethod = config.decodingMethod.toNativeUtf8();
-    c.ref.maxActivePaths = config.maxActivePaths;
-    c.ref.enableEndpoint = config.enableEndpoint ? 1 : 0;
-    c.ref.rule1MinTrailingSilence = config.rule1MinTrailingSilence;
-    c.ref.rule2MinTrailingSilence = config.rule2MinTrailingSilence;
-    c.ref.rule3MinUtteranceLength = config.rule3MinUtteranceLength;
-    c.ref.hotwordsFile = config.hotwordsFile.toNativeUtf8();
-    c.ref.hotwordsScore = config.hotwordsScore;
-
-    c.ref.ctcFstDecoderConfig.graph =
-        config.ctcFstDecoderConfig.graph.toNativeUtf8();
-    c.ref.ctcFstDecoderConfig.maxActive = config.ctcFstDecoderConfig.maxActive;
-    c.ref.ruleFsts = config.ruleFsts.toNativeUtf8();
-    c.ref.ruleFars = config.ruleFars.toNativeUtf8();
-
-    final ptr = SherpaOnnxBindings.createOnlineRecognizer?.call(c) ?? nullptr;
-
-    calloc.free(c.ref.ruleFars);
-    calloc.free(c.ref.ruleFsts);
-    calloc.free(c.ref.ctcFstDecoderConfig.graph);
-    calloc.free(c.ref.hotwordsFile);
-    calloc.free(c.ref.decodingMethod);
-    calloc.free(c.ref.model.bpeVocab);
-    calloc.free(c.ref.model.modelingUnit);
-    calloc.free(c.ref.model.modelType);
-    calloc.free(c.ref.model.provider);
-    calloc.free(c.ref.model.tokens);
-    calloc.free(c.ref.model.zipformer2Ctc.model);
-    calloc.free(c.ref.model.paraformer.encoder);
-    calloc.free(c.ref.model.paraformer.decoder);
-
-    calloc.free(c.ref.model.transducer.encoder);
-    calloc.free(c.ref.model.transducer.decoder);
-    calloc.free(c.ref.model.transducer.joiner);
-    calloc.free(c);
-
-    return OnlineRecognizer._(ptr: ptr, config: config);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroyOnlineRecognizer?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// The user has to invoke stream.free() on the returned instance
-  /// to avoid memory leak
-  OnlineStream createStream({String hotwords = ''}) {
-    if (hotwords == '') {
-      final p = SherpaOnnxBindings.createOnlineStream?.call(ptr) ?? nullptr;
-      return OnlineStream(ptr: p);
-    }
-
-    final utf8 = hotwords.toNativeUtf8();
-    final p =
-        SherpaOnnxBindings.createOnlineStreamWithHotwords?.call(ptr, utf8) ??
-            nullptr;
-    calloc.free(utf8);
-    return OnlineStream(ptr: p);
-  }
-
-  bool isReady(OnlineStream stream) {
-    int ready =
-        SherpaOnnxBindings.isOnlineStreamReady?.call(ptr, stream.ptr) ?? 0;
-
-    return ready == 1;
-  }
-
-  OnlineRecognizerResult getResult(OnlineStream stream) {
-    final json =
-        SherpaOnnxBindings.getOnlineStreamResultAsJson?.call(ptr, stream.ptr) ??
-            nullptr;
-    if (json == nullptr) {
-      return OnlineRecognizerResult(text: '', tokens: [], timestamps: []);
-    }
-
-    final parsedJson = jsonDecode(json.toDartString());
-
-    SherpaOnnxBindings.destroyOnlineStreamResultJson?.call(json);
-
-    return OnlineRecognizerResult(
-        text: parsedJson['text'],
-        tokens: List<String>.from(parsedJson['tokens']),
-        timestamps: List<double>.from(parsedJson['timestamps']));
-  }
-
-  void reset(OnlineStream stream) {
-    SherpaOnnxBindings.reset?.call(ptr, stream.ptr);
-  }
-
-  void decode(OnlineStream stream) {
-    SherpaOnnxBindings.decodeOnlineStream?.call(ptr, stream.ptr);
-  }
-
-  bool isEndpoint(OnlineStream stream) {
-    int yes = SherpaOnnxBindings.isEndpoint?.call(ptr, stream.ptr) ?? 0;
-
-    return yes == 1;
-  }
-
-  Pointer<SherpaOnnxOnlineRecognizer> ptr;
-  OnlineRecognizerConfig config;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-class OnlineStream {
-  /// The user has to call OnlineStream.free() to avoid memory leak.
-  OnlineStream({required this.ptr});
-
-  void free() {
-    SherpaOnnxBindings.destroyOnlineStream?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// If you have List<double> data, then you can use
-  /// Float32List.fromList(data) to convert data to Float32List
-  ///
-  /// See
-  ///  https://api.flutter.dev/flutter/dart-core/List-class.html
-  /// and
-  ///  https://api.flutter.dev/flutter/dart-typed_data/Float32List-class.html
-  void acceptWaveform({required Float32List samples, required int sampleRate}) {
-    final n = samples.length;
-    final Pointer<Float> p = calloc<Float>(n);
-
-    final pList = p.asTypedList(n);
-    pList.setAll(0, samples);
-
-    SherpaOnnxBindings.onlineStreamAcceptWaveform?.call(ptr, sampleRate, p, n);
-
-    calloc.free(p);
-  }
-
-  void inputFinished() {
-    SherpaOnnxBindings.onlineStreamInputFinished?.call(ptr);
-  }
-
-  Pointer<SherpaOnnxOnlineStream> ptr;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'package:ffi/ffi.dart';
-
-final class SherpaOnnxOfflineTtsVitsModelConfig extends Struct {
-  external Pointer<Utf8> model;
-  external Pointer<Utf8> lexicon;
-  external Pointer<Utf8> tokens;
-  external Pointer<Utf8> dataDir;
-
-  @Float()
-  external double noiseScale;
-
-  @Float()
-  external double noiseScaleW;
-
-  @Float()
-  external double lengthScale;
-
-  external Pointer<Utf8> dictDir;
-}
-
-final class SherpaOnnxOfflineTtsModelConfig extends Struct {
-  external SherpaOnnxOfflineTtsVitsModelConfig vits;
-  @Int32()
-  external int numThreads;
-
-  @Int32()
-  external int debug;
-
-  external Pointer<Utf8> provider;
-}
-
-final class SherpaOnnxOfflineTtsConfig extends Struct {
-  external SherpaOnnxOfflineTtsModelConfig model;
-  external Pointer<Utf8> ruleFsts;
-
-  @Int32()
-  external int maxNumSenetences;
-
-  external Pointer<Utf8> ruleFars;
-}
-
-final class SherpaOnnxGeneratedAudio extends Struct {
-  external Pointer<Float> samples;
-
-  @Int32()
-  external int n;
-
-  @Int32()
-  external int sampleRate;
-}
-
-final class SherpaOnnxFeatureConfig extends Struct {
-  @Int32()
-  external int sampleRate;
-
-  @Int32()
-  external int featureDim;
-}
-
-final class SherpaOnnxOfflineTransducerModelConfig extends Struct {
-  external Pointer<Utf8> encoder;
-  external Pointer<Utf8> decoder;
-  external Pointer<Utf8> joiner;
-}
-
-final class SherpaOnnxOfflineParaformerModelConfig extends Struct {
-  external Pointer<Utf8> model;
-}
-
-final class SherpaOnnxOfflineNemoEncDecCtcModelConfig extends Struct {
-  external Pointer<Utf8> model;
-}
-
-final class SherpaOnnxOfflineWhisperModelConfig extends Struct {
-  external Pointer<Utf8> encoder;
-  external Pointer<Utf8> decoder;
-  external Pointer<Utf8> language;
-  external Pointer<Utf8> task;
-
-  @Int32()
-  external int tailPaddings;
-}
-
-final class SherpaOnnxOfflineTdnnModelConfig extends Struct {
-  external Pointer<Utf8> model;
-}
-
-final class SherpaOnnxOfflineLMConfig extends Struct {
-  external Pointer<Utf8> model;
-
-  @Float()
-  external double scale;
-}
-
-final class SherpaOnnxOfflineModelConfig extends Struct {
-  external SherpaOnnxOfflineTransducerModelConfig transducer;
-  external SherpaOnnxOfflineParaformerModelConfig paraformer;
-  external SherpaOnnxOfflineNemoEncDecCtcModelConfig nemoCtc;
-  external SherpaOnnxOfflineWhisperModelConfig whisper;
-  external SherpaOnnxOfflineTdnnModelConfig tdnn;
-
-  external Pointer<Utf8> tokens;
-
-  @Int32()
-  external int numThreads;
-
-  @Int32()
-  external int debug;
-
-  external Pointer<Utf8> provider;
-
-  external Pointer<Utf8> modelType;
-  external Pointer<Utf8> modelingUnit;
-  external Pointer<Utf8> bpeVocab;
-  external Pointer<Utf8> telespeechCtc;
-}
-
-final class SherpaOnnxOfflineRecognizerConfig extends Struct {
-  external SherpaOnnxFeatureConfig feat;
-  external SherpaOnnxOfflineModelConfig model;
-  external SherpaOnnxOfflineLMConfig lm;
-  external Pointer<Utf8> decodingMethod;
-
-  @Int32()
-  external int maxActivePaths;
-
-  external Pointer<Utf8> hotwordsFile;
-
-  @Float()
-  external double hotwordsScore;
-
-  external Pointer<Utf8> ruleFsts;
-  external Pointer<Utf8> ruleFars;
-}
-
-final class SherpaOnnxOnlineTransducerModelConfig extends Struct {
-  external Pointer<Utf8> encoder;
-  external Pointer<Utf8> decoder;
-  external Pointer<Utf8> joiner;
-}
-
-final class SherpaOnnxOnlineParaformerModelConfig extends Struct {
-  external Pointer<Utf8> encoder;
-  external Pointer<Utf8> decoder;
-}
-
-final class SherpaOnnxOnlineZipformer2CtcModelConfig extends Struct {
-  external Pointer<Utf8> model;
-}
-
-final class SherpaOnnxOnlineModelConfig extends Struct {
-  external SherpaOnnxOnlineTransducerModelConfig transducer;
-  external SherpaOnnxOnlineParaformerModelConfig paraformer;
-  external SherpaOnnxOnlineZipformer2CtcModelConfig zipformer2Ctc;
-
-  external Pointer<Utf8> tokens;
-
-  @Int32()
-  external int numThreads;
-
-  external Pointer<Utf8> provider;
-
-  @Int32()
-  external int debug;
-
-  external Pointer<Utf8> modelType;
-
-  external Pointer<Utf8> modelingUnit;
-
-  external Pointer<Utf8> bpeVocab;
-}
-
-final class SherpaOnnxOnlineCtcFstDecoderConfig extends Struct {
-  external Pointer<Utf8> graph;
-
-  @Int32()
-  external int maxActive;
-}
-
-final class SherpaOnnxOnlineRecognizerConfig extends Struct {
-  external SherpaOnnxFeatureConfig feat;
-  external SherpaOnnxOnlineModelConfig model;
-  external Pointer<Utf8> decodingMethod;
-
-  @Int32()
-  external int maxActivePaths;
-
-  @Int32()
-  external int enableEndpoint;
-
-  @Float()
-  external double rule1MinTrailingSilence;
-
-  @Float()
-  external double rule2MinTrailingSilence;
-
-  @Float()
-  external double rule3MinUtteranceLength;
-
-  external Pointer<Utf8> hotwordsFile;
-
-  @Float()
-  external double hotwordsScore;
-
-  external SherpaOnnxOnlineCtcFstDecoderConfig ctcFstDecoderConfig;
-
-  external Pointer<Utf8> ruleFsts;
-  external Pointer<Utf8> ruleFars;
-}
-
-final class SherpaOnnxSileroVadModelConfig extends Struct {
-  external Pointer<Utf8> model;
-
-  @Float()
-  external double threshold;
-
-  @Float()
-  external double minSilenceDuration;
-
-  @Float()
-  external double minSpeechDuration;
-
-  @Int32()
-  external int windowSize;
-}
-
-final class SherpaOnnxVadModelConfig extends Struct {
-  external SherpaOnnxSileroVadModelConfig sileroVad;
-
-  @Int32()
-  external int sampleRate;
-
-  @Int32()
-  external int numThreads;
-
-  external Pointer<Utf8> provider;
-
-  @Int32()
-  external int debug;
-}
-
-final class SherpaOnnxSpeechSegment extends Struct {
-  @Int32()
-  external int start;
-
-  external Pointer<Float> samples;
-
-  @Int32()
-  external int n;
-}
-
-final class SherpaOnnxWave extends Struct {
-  external Pointer<Float> samples;
-
-  @Int32()
-  external int sampleRate;
-
-  @Int32()
-  external int numSamples;
-}
-
-final class SherpaOnnxSpeakerEmbeddingExtractorConfig extends Struct {
-  external Pointer<Utf8> model;
-
-  @Int32()
-  external int numThreads;
-
-  @Int32()
-  external int debug;
-
-  external Pointer<Utf8> provider;
-}
-
-final class SherpaOnnxOfflineTts extends Opaque {}
-
-final class SherpaOnnxCircularBuffer extends Opaque {}
-
-final class SherpaOnnxVoiceActivityDetector extends Opaque {}
-
-final class SherpaOnnxOnlineStream extends Opaque {}
-
-final class SherpaOnnxOnlineRecognizer extends Opaque {}
-
-final class SherpaOnnxOfflineRecognizer extends Opaque {}
-
-final class SherpaOnnxOfflineStream extends Opaque {}
-
-final class SherpaOnnxSpeakerEmbeddingExtractor extends Opaque {}
-
-final class SherpaOnnxSpeakerEmbeddingManager extends Opaque {}
-
-typedef SherpaOnnxCreateOfflineTtsNative = Pointer<SherpaOnnxOfflineTts>
-    Function(Pointer<SherpaOnnxOfflineTtsConfig>);
-
-typedef SherpaOnnxCreateOfflineTts = SherpaOnnxCreateOfflineTtsNative;
-
-typedef SherpaOnnxDestroyOfflineTtsNative = Void Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxDestroyOfflineTts = void Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxOfflineTtsSampleRateNative = Int32 Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxOfflineTtsSampleRate = int Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxOfflineTtsNumSpeakersNative = Int32 Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxOfflineTtsNumSpeakers = int Function(
-    Pointer<SherpaOnnxOfflineTts>);
-
-typedef SherpaOnnxOfflineTtsGenerateNative = Pointer<SherpaOnnxGeneratedAudio>
-    Function(Pointer<SherpaOnnxOfflineTts>, Pointer<Utf8>, Int32, Float);
-
-typedef SherpaOnnxOfflineTtsGenerate = Pointer<SherpaOnnxGeneratedAudio>
-    Function(Pointer<SherpaOnnxOfflineTts>, Pointer<Utf8>, int, double);
-
-typedef SherpaOnnxDestroyOfflineTtsGeneratedAudioNative = Void Function(
-    Pointer<SherpaOnnxGeneratedAudio>);
-
-typedef SherpaOnnxDestroyOfflineTtsGeneratedAudio = void Function(
-    Pointer<SherpaOnnxGeneratedAudio>);
-
-typedef SherpaOnnxGeneratedAudioCallbackNative = Int Function(
-    Pointer<Float>, Int32);
-
-typedef SherpaOnnxOfflineTtsGenerateWithCallbackNative
-    = Pointer<SherpaOnnxGeneratedAudio> Function(
-        Pointer<SherpaOnnxOfflineTts>,
-        Pointer<Utf8>,
-        Int32,
-        Float,
-        Pointer<NativeFunction<SherpaOnnxGeneratedAudioCallbackNative>>);
-
-typedef SherpaOnnxOfflineTtsGenerateWithCallback
-    = Pointer<SherpaOnnxGeneratedAudio> Function(
-        Pointer<SherpaOnnxOfflineTts>,
-        Pointer<Utf8>,
-        int,
-        double,
-        Pointer<NativeFunction<SherpaOnnxGeneratedAudioCallbackNative>>);
-
-typedef CreateOfflineRecognizerNative = Pointer<SherpaOnnxOfflineRecognizer>
-    Function(Pointer<SherpaOnnxOfflineRecognizerConfig>);
-
-typedef CreateOfflineRecognizer = CreateOfflineRecognizerNative;
-
-typedef DestroyOfflineRecognizerNative = Void Function(
-    Pointer<SherpaOnnxOfflineRecognizer>);
-
-typedef DestroyOfflineRecognizer = void Function(
-    Pointer<SherpaOnnxOfflineRecognizer>);
-
-typedef CreateOfflineStreamNative = Pointer<SherpaOnnxOfflineStream> Function(
-    Pointer<SherpaOnnxOfflineRecognizer>);
-
-typedef CreateOfflineStream = CreateOfflineStreamNative;
-
-typedef DestroyOfflineStreamNative = Void Function(
-    Pointer<SherpaOnnxOfflineStream>);
-
-typedef DestroyOfflineStream = void Function(Pointer<SherpaOnnxOfflineStream>);
-
-typedef AcceptWaveformOfflineNative = Void Function(
-    Pointer<SherpaOnnxOfflineStream>, Int32, Pointer<Float>, Int32);
-
-typedef AcceptWaveformOffline = void Function(
-    Pointer<SherpaOnnxOfflineStream>, int, Pointer<Float>, int);
-
-typedef DecodeOfflineStreamNative = Void Function(
-    Pointer<SherpaOnnxOfflineRecognizer>, Pointer<SherpaOnnxOfflineStream>);
-
-typedef DecodeOfflineStream = void Function(
-    Pointer<SherpaOnnxOfflineRecognizer>, Pointer<SherpaOnnxOfflineStream>);
-
-typedef GetOfflineStreamResultAsJsonNative = Pointer<Utf8> Function(
-    Pointer<SherpaOnnxOfflineStream>);
-
-typedef GetOfflineStreamResultAsJson = GetOfflineStreamResultAsJsonNative;
-
-typedef DestroyOfflineStreamResultJsonNative = Void Function(Pointer<Utf8>);
-
-typedef DestroyOfflineStreamResultJson = void Function(Pointer<Utf8>);
-
-typedef CreateOnlineRecognizerNative = Pointer<SherpaOnnxOnlineRecognizer>
-    Function(Pointer<SherpaOnnxOnlineRecognizerConfig>);
-
-typedef CreateOnlineRecognizer = CreateOnlineRecognizerNative;
-
-typedef DestroyOnlineRecognizerNative = Void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>);
-
-typedef DestroyOnlineRecognizer = void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>);
-
-typedef CreateOnlineStreamNative = Pointer<SherpaOnnxOnlineStream> Function(
-    Pointer<SherpaOnnxOnlineRecognizer>);
-
-typedef CreateOnlineStream = CreateOnlineStreamNative;
-
-typedef CreateOnlineStreamWithHotwordsNative = Pointer<SherpaOnnxOnlineStream>
-    Function(Pointer<SherpaOnnxOnlineRecognizer>, Pointer<Utf8>);
-
-typedef CreateOnlineStreamWithHotwords = CreateOnlineStreamWithHotwordsNative;
-
-typedef IsOnlineStreamReadyNative = Int32 Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef IsOnlineStreamReady = int Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef DecodeOnlineStreamNative = Void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef DecodeOnlineStream = void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef GetOnlineStreamResultAsJsonNative = Pointer<Utf8> Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef GetOnlineStreamResultAsJson = GetOnlineStreamResultAsJsonNative;
-
-typedef ResetNative = Void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef Reset = void Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef IsEndpointNative = Int32 Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef IsEndpoint = int Function(
-    Pointer<SherpaOnnxOnlineRecognizer>, Pointer<SherpaOnnxOnlineStream>);
-
-typedef DestroyOnlineStreamResultJsonNative = Void Function(Pointer<Utf8>);
-
-typedef DestroyOnlineStreamResultJson = void Function(Pointer<Utf8>);
-
-typedef SherpaOnnxCreateVoiceActivityDetectorNative
-    = Pointer<SherpaOnnxVoiceActivityDetector> Function(
-        Pointer<SherpaOnnxVadModelConfig>, Float);
-
-typedef SherpaOnnxCreateVoiceActivityDetector
-    = Pointer<SherpaOnnxVoiceActivityDetector> Function(
-        Pointer<SherpaOnnxVadModelConfig>, double);
-
-typedef SherpaOnnxDestroyVoiceActivityDetectorNative = Void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxDestroyVoiceActivityDetector = void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorAcceptWaveformNative = Void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>, Pointer<Float>, Int32);
-
-typedef SherpaOnnxVoiceActivityDetectorAcceptWaveform = void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>, Pointer<Float>, int);
-
-typedef SherpaOnnxVoiceActivityDetectorEmptyNative = Int32 Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorEmpty = int Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorDetectedNative = Int32 Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorDetected = int Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorPopNative = Void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorPop = void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorClearNative = Void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorClear = void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorResetNative = Void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorReset = void Function(
-    Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorFrontNative
-    = Pointer<SherpaOnnxSpeechSegment> Function(
-        Pointer<SherpaOnnxVoiceActivityDetector>);
-
-typedef SherpaOnnxVoiceActivityDetectorFront
-    = SherpaOnnxVoiceActivityDetectorFrontNative;
-
-typedef SherpaOnnxDestroySpeechSegmentNative = Void Function(
-    Pointer<SherpaOnnxSpeechSegment>);
-
-typedef SherpaOnnxDestroySpeechSegment = void Function(
-    Pointer<SherpaOnnxSpeechSegment>);
-
-typedef SherpaOnnxCreateCircularBufferNative = Pointer<SherpaOnnxCircularBuffer>
-    Function(Int32);
-
-typedef SherpaOnnxCreateCircularBuffer = Pointer<SherpaOnnxCircularBuffer>
-    Function(int);
-
-typedef SherpaOnnxDestroyCircularBufferNative = Void Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxDestroyCircularBuffer = void Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferPushNative = Void Function(
-    Pointer<SherpaOnnxCircularBuffer>, Pointer<Float>, Int32);
-
-typedef SherpaOnnxCircularBufferPush = void Function(
-    Pointer<SherpaOnnxCircularBuffer>, Pointer<Float>, int);
-
-typedef SherpaOnnxCircularBufferGetNative = Pointer<Float> Function(
-    Pointer<SherpaOnnxCircularBuffer>, Int32, Int32);
-
-typedef SherpaOnnxCircularBufferGet = Pointer<Float> Function(
-    Pointer<SherpaOnnxCircularBuffer>, int, int);
-
-typedef SherpaOnnxCircularBufferFreeNative = Void Function(Pointer<Float>);
-
-typedef SherpaOnnxCircularBufferFree = void Function(Pointer<Float>);
-
-typedef SherpaOnnxCircularBufferPopNative = Void Function(
-    Pointer<SherpaOnnxCircularBuffer>, Int32);
-
-typedef SherpaOnnxCircularBufferPop = void Function(
-    Pointer<SherpaOnnxCircularBuffer>, int);
-
-typedef SherpaOnnxCircularBufferSizeNative = Int32 Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferSize = int Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferHeadNative = Int32 Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferHead = int Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferResetNative = Void Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCircularBufferReset = void Function(
-    Pointer<SherpaOnnxCircularBuffer>);
-
-typedef SherpaOnnxCreateSpeakerEmbeddingManagerNative
-    = Pointer<SherpaOnnxSpeakerEmbeddingManager> Function(Int32);
-
-typedef SherpaOnnxCreateSpeakerEmbeddingManager
-    = Pointer<SherpaOnnxSpeakerEmbeddingManager> Function(int);
-
-typedef SherpaOnnxDestroySpeakerEmbeddingManagerNative = Void Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>);
-
-typedef SherpaOnnxDestroySpeakerEmbeddingManager = void Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerAddNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>, Pointer<Float>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerAdd = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>, Pointer<Float>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerAddListFlattenedNative
-    = Int32 Function(Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>,
-        Pointer<Float>, Int32);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerAddListFlattened = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>,
-    Pointer<Utf8>,
-    Pointer<Float>,
-    int);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerRemoveNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerRemove = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerContainsNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerContains = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerSearchNative = Pointer<Utf8> Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Float>, Float);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerSearch = Pointer<Utf8> Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>, Pointer<Float>, double);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerFreeSearchNative = Void Function(
-    Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerFreeSearch = void Function(
-    Pointer<Utf8>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerNumSpeakersNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerNumSpeakers = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerVerifyNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>,
-    Pointer<Utf8>,
-    Pointer<Float>,
-    Float);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerVerify = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingManager>,
-    Pointer<Utf8>,
-    Pointer<Float>,
-    double);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakersNative
-    = Pointer<Pointer<Utf8>> Function(
-        Pointer<SherpaOnnxSpeakerEmbeddingManager>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakers
-    = SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakersNative;
-
-typedef SherpaOnnxSpeakerEmbeddingManagerFreeAllSpeakersNative = Void Function(
-    Pointer<Pointer<Utf8>>);
-
-typedef SherpaOnnxSpeakerEmbeddingManagerFreeAllSpeakers = void Function(
-    Pointer<Pointer<Utf8>>);
-
-typedef SherpaOnnxCreateSpeakerEmbeddingExtractorNative
-    = Pointer<SherpaOnnxSpeakerEmbeddingExtractor> Function(
-        Pointer<SherpaOnnxSpeakerEmbeddingExtractorConfig>);
-
-typedef SherpaOnnxCreateSpeakerEmbeddingExtractor
-    = SherpaOnnxCreateSpeakerEmbeddingExtractorNative;
-
-typedef SherpaOnnxDestroySpeakerEmbeddingExtractorNative = Void Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>);
-
-typedef SherpaOnnxDestroySpeakerEmbeddingExtractor = void Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorDimNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorDim = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorCreateStreamNative
-    = Pointer<SherpaOnnxOnlineStream> Function(
-        Pointer<SherpaOnnxSpeakerEmbeddingExtractor>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorCreateStream
-    = SherpaOnnxSpeakerEmbeddingExtractorCreateStreamNative;
-
-typedef DestroyOnlineStreamNative = Void Function(
-    Pointer<SherpaOnnxOnlineStream>);
-
-typedef DestroyOnlineStream = void Function(Pointer<SherpaOnnxOnlineStream>);
-
-typedef OnlineStreamAcceptWaveformNative = Void Function(
-    Pointer<SherpaOnnxOnlineStream>, Int32, Pointer<Float>, Int32);
-
-typedef OnlineStreamAcceptWaveform = void Function(
-    Pointer<SherpaOnnxOnlineStream>, int, Pointer<Float>, int);
-
-typedef OnlineStreamInputFinishedNative = Void Function(
-    Pointer<SherpaOnnxOnlineStream>);
-
-typedef OnlineStreamInputFinished = void Function(
-    Pointer<SherpaOnnxOnlineStream>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorIsReadyNative = Int32 Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>,
-    Pointer<SherpaOnnxOnlineStream>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorIsReady = int Function(
-    Pointer<SherpaOnnxSpeakerEmbeddingExtractor>,
-    Pointer<SherpaOnnxOnlineStream>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorComputeEmbeddingNative
-    = Pointer<Float> Function(Pointer<SherpaOnnxSpeakerEmbeddingExtractor>,
-        Pointer<SherpaOnnxOnlineStream>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorComputeEmbedding
-    = SherpaOnnxSpeakerEmbeddingExtractorComputeEmbeddingNative;
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorDestroyEmbeddingNative = Void
-    Function(Pointer<Float>);
-
-typedef SherpaOnnxSpeakerEmbeddingExtractorDestroyEmbedding = void Function(
-    Pointer<Float>);
-
-typedef SherpaOnnxReadWaveNative = Pointer<SherpaOnnxWave> Function(
-    Pointer<Utf8>);
-
-typedef SherpaOnnxReadWave = SherpaOnnxReadWaveNative;
-
-typedef SherpaOnnxWriteWaveNative = Int32 Function(
-    Pointer<Float>, Int32, Int32, Pointer<Utf8>);
-
-typedef SherpaOnnxWriteWave = int Function(
-    Pointer<Float>, int, int, Pointer<Utf8>);
-
-typedef SherpaOnnxFreeWaveNative = Void Function(Pointer<SherpaOnnxWave>);
-
-typedef SherpaOnnxFreeWave = void Function(Pointer<SherpaOnnxWave>);
-
-class SherpaOnnxBindings {
-  static SherpaOnnxCreateOfflineTts? createOfflineTts;
-  static SherpaOnnxDestroyOfflineTts? destroyOfflineTts;
-  static SherpaOnnxOfflineTtsSampleRate? offlineTtsSampleRate;
-  static SherpaOnnxOfflineTtsNumSpeakers? offlineTtsNumSpeakers;
-  static SherpaOnnxOfflineTtsGenerate? offlineTtsGenerate;
-  static SherpaOnnxDestroyOfflineTtsGeneratedAudio?
-      destroyOfflineTtsGeneratedAudio;
-  static SherpaOnnxOfflineTtsGenerateWithCallback?
-      offlineTtsGenerateWithCallback;
-
-  static CreateOfflineRecognizer? createOfflineRecognizer;
-  static DestroyOfflineRecognizer? destroyOfflineRecognizer;
-  static CreateOfflineStream? createOfflineStream;
-  static DestroyOfflineStream? destroyOfflineStream;
-  static AcceptWaveformOffline? acceptWaveformOffline;
-  static DecodeOfflineStream? decodeOfflineStream;
-  static GetOfflineStreamResultAsJson? getOfflineStreamResultAsJson;
-  static DestroyOfflineStreamResultJson? destroyOfflineStreamResultJson;
-
-  static CreateOnlineRecognizer? createOnlineRecognizer;
-
-  static DestroyOnlineRecognizer? destroyOnlineRecognizer;
-
-  static CreateOnlineStream? createOnlineStream;
-
-  static CreateOnlineStreamWithHotwords? createOnlineStreamWithHotwords;
-
-  static IsOnlineStreamReady? isOnlineStreamReady;
-
-  static DecodeOnlineStream? decodeOnlineStream;
-
-  static GetOnlineStreamResultAsJson? getOnlineStreamResultAsJson;
-
-  static Reset? reset;
-
-  static IsEndpoint? isEndpoint;
-
-  static DestroyOnlineStreamResultJson? destroyOnlineStreamResultJson;
-
-  static SherpaOnnxCreateVoiceActivityDetector? createVoiceActivityDetector;
-
-  static SherpaOnnxDestroyVoiceActivityDetector? destroyVoiceActivityDetector;
-
-  static SherpaOnnxVoiceActivityDetectorAcceptWaveform?
-      voiceActivityDetectorAcceptWaveform;
-
-  static SherpaOnnxVoiceActivityDetectorEmpty? voiceActivityDetectorEmpty;
-
-  static SherpaOnnxVoiceActivityDetectorDetected? voiceActivityDetectorDetected;
-
-  static SherpaOnnxVoiceActivityDetectorPop? voiceActivityDetectorPop;
-
-  static SherpaOnnxVoiceActivityDetectorClear? voiceActivityDetectorClear;
-
-  static SherpaOnnxVoiceActivityDetectorFront? voiceActivityDetectorFront;
-
-  static SherpaOnnxDestroySpeechSegment? destroySpeechSegment;
-
-  static SherpaOnnxVoiceActivityDetectorReset? voiceActivityDetectorReset;
-
-  static SherpaOnnxCreateCircularBuffer? createCircularBuffer;
-
-  static SherpaOnnxDestroyCircularBuffer? destroyCircularBuffer;
-
-  static SherpaOnnxCircularBufferPush? circularBufferPush;
-
-  static SherpaOnnxCircularBufferGet? circularBufferGet;
-
-  static SherpaOnnxCircularBufferFree? circularBufferFree;
-
-  static SherpaOnnxCircularBufferPop? circularBufferPop;
-
-  static SherpaOnnxCircularBufferSize? circularBufferSize;
-
-  static SherpaOnnxCircularBufferHead? circularBufferHead;
-
-  static SherpaOnnxCircularBufferReset? circularBufferReset;
-
-  static SherpaOnnxCreateSpeakerEmbeddingExtractor?
-      createSpeakerEmbeddingExtractor;
-
-  static SherpaOnnxDestroySpeakerEmbeddingExtractor?
-      destroySpeakerEmbeddingExtractor;
-
-  static SherpaOnnxSpeakerEmbeddingExtractorDim? speakerEmbeddingExtractorDim;
-
-  static SherpaOnnxSpeakerEmbeddingExtractorCreateStream?
-      speakerEmbeddingExtractorCreateStream;
-
-  static SherpaOnnxSpeakerEmbeddingExtractorComputeEmbedding?
-      speakerEmbeddingExtractorComputeEmbedding;
-
-  static SherpaOnnxSpeakerEmbeddingExtractorDestroyEmbedding?
-      speakerEmbeddingExtractorDestroyEmbedding;
-
-  static DestroyOnlineStream? destroyOnlineStream;
-
-  static OnlineStreamAcceptWaveform? onlineStreamAcceptWaveform;
-
-  static OnlineStreamInputFinished? onlineStreamInputFinished;
-
-  static SherpaOnnxSpeakerEmbeddingExtractorIsReady?
-      speakerEmbeddingExtractorIsReady;
-
-  static SherpaOnnxCreateSpeakerEmbeddingManager? createSpeakerEmbeddingManager;
-
-  static SherpaOnnxDestroySpeakerEmbeddingManager?
-      destroySpeakerEmbeddingManager;
-
-  static SherpaOnnxSpeakerEmbeddingManagerAdd? speakerEmbeddingManagerAdd;
-
-  static SherpaOnnxSpeakerEmbeddingManagerAddListFlattened?
-      speakerEmbeddingManagerAddListFlattened;
-
-  static SherpaOnnxSpeakerEmbeddingManagerRemove? speakerEmbeddingManagerRemove;
-
-  static SherpaOnnxSpeakerEmbeddingManagerContains?
-      speakerEmbeddingManagerContains;
-
-  static SherpaOnnxSpeakerEmbeddingManagerSearch? speakerEmbeddingManagerSearch;
-
-  static SherpaOnnxSpeakerEmbeddingManagerFreeSearch?
-      speakerEmbeddingManagerFreeSearch;
-
-  static SherpaOnnxSpeakerEmbeddingManagerNumSpeakers?
-      speakerEmbeddingManagerNumSpeakers;
-
-  static SherpaOnnxSpeakerEmbeddingManagerVerify? speakerEmbeddingManagerVerify;
-
-  static SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakers?
-      speakerEmbeddingManagerGetAllSpeakers;
-
-  static SherpaOnnxSpeakerEmbeddingManagerFreeAllSpeakers?
-      speakerEmbeddingManagerFreeAllSpeakers;
-
-  static SherpaOnnxReadWave? readWave;
-
-  static SherpaOnnxWriteWave? writeWave;
-
-  static SherpaOnnxFreeWave? freeWave;
-
-  static void init(DynamicLibrary dynamicLibrary) {
-    createOfflineTts ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCreateOfflineTtsNative>>(
-            'SherpaOnnxCreateOfflineTts')
-        .asFunction();
-
-    destroyOfflineTts ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxDestroyOfflineTtsNative>>(
-            'SherpaOnnxDestroyOfflineTts')
-        .asFunction();
-
-    offlineTtsSampleRate ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxOfflineTtsSampleRateNative>>(
-            'SherpaOnnxOfflineTtsSampleRate')
-        .asFunction();
-
-    offlineTtsNumSpeakers ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxOfflineTtsNumSpeakersNative>>(
-            'SherpaOnnxOfflineTtsNumSpeakers')
-        .asFunction();
-
-    offlineTtsGenerate ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxOfflineTtsGenerateNative>>(
-            'SherpaOnnxOfflineTtsGenerate')
-        .asFunction();
-
-    destroyOfflineTtsGeneratedAudio ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxDestroyOfflineTtsGeneratedAudioNative>>(
-            'SherpaOnnxDestroyOfflineTtsGeneratedAudio')
-        .asFunction();
-
-    offlineTtsGenerateWithCallback ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxOfflineTtsGenerateWithCallbackNative>>(
-            'SherpaOnnxOfflineTtsGenerateWithCallback')
-        .asFunction();
-
-    createOfflineRecognizer ??= dynamicLibrary
-        .lookup<NativeFunction<CreateOfflineRecognizerNative>>(
-            'CreateOfflineRecognizer')
-        .asFunction();
-
-    destroyOfflineRecognizer ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOfflineRecognizerNative>>(
-            'DestroyOfflineRecognizer')
-        .asFunction();
-
-    createOfflineStream ??= dynamicLibrary
-        .lookup<NativeFunction<CreateOfflineStreamNative>>(
-            'CreateOfflineStream')
-        .asFunction();
-
-    destroyOfflineStream ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOfflineStreamNative>>(
-            'DestroyOfflineStream')
-        .asFunction();
-
-    acceptWaveformOffline ??= dynamicLibrary
-        .lookup<NativeFunction<AcceptWaveformOfflineNative>>(
-            'AcceptWaveformOffline')
-        .asFunction();
-
-    decodeOfflineStream ??= dynamicLibrary
-        .lookup<NativeFunction<DecodeOfflineStreamNative>>(
-            'DecodeOfflineStream')
-        .asFunction();
-
-    getOfflineStreamResultAsJson ??= dynamicLibrary
-        .lookup<NativeFunction<GetOfflineStreamResultAsJsonNative>>(
-            'GetOfflineStreamResultAsJson')
-        .asFunction();
-
-    destroyOfflineStreamResultJson ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOfflineStreamResultJsonNative>>(
-            'DestroyOfflineStreamResultJson')
-        .asFunction();
-
-    createOnlineRecognizer ??= dynamicLibrary
-        .lookup<NativeFunction<CreateOnlineRecognizerNative>>(
-            'CreateOnlineRecognizer')
-        .asFunction();
-
-    destroyOnlineRecognizer ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOnlineRecognizerNative>>(
-            'DestroyOnlineRecognizer')
-        .asFunction();
-
-    createOnlineStream ??= dynamicLibrary
-        .lookup<NativeFunction<CreateOnlineStreamNative>>('CreateOnlineStream')
-        .asFunction();
-
-    createOnlineStreamWithHotwords ??= dynamicLibrary
-        .lookup<NativeFunction<CreateOnlineStreamWithHotwordsNative>>(
-            'CreateOnlineStreamWithHotwords')
-        .asFunction();
-
-    isOnlineStreamReady ??= dynamicLibrary
-        .lookup<NativeFunction<IsOnlineStreamReadyNative>>(
-            'IsOnlineStreamReady')
-        .asFunction();
-
-    decodeOnlineStream ??= dynamicLibrary
-        .lookup<NativeFunction<DecodeOnlineStreamNative>>('DecodeOnlineStream')
-        .asFunction();
-
-    getOnlineStreamResultAsJson ??= dynamicLibrary
-        .lookup<NativeFunction<GetOnlineStreamResultAsJsonNative>>(
-            'GetOnlineStreamResultAsJson')
-        .asFunction();
-
-    reset ??= dynamicLibrary
-        .lookup<NativeFunction<ResetNative>>('Reset')
-        .asFunction();
-
-    isEndpoint ??= dynamicLibrary
-        .lookup<NativeFunction<IsEndpointNative>>('IsEndpoint')
-        .asFunction();
-
-    destroyOnlineStreamResultJson ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOnlineStreamResultJsonNative>>(
-            'DestroyOnlineStreamResultJson')
-        .asFunction();
-
-    createVoiceActivityDetector ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCreateVoiceActivityDetectorNative>>(
-            'SherpaOnnxCreateVoiceActivityDetector')
-        .asFunction();
-
-    destroyVoiceActivityDetector ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxDestroyVoiceActivityDetectorNative>>(
-            'SherpaOnnxDestroyVoiceActivityDetector')
-        .asFunction();
-
-    voiceActivityDetectorAcceptWaveform ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxVoiceActivityDetectorAcceptWaveformNative>>(
-            'SherpaOnnxVoiceActivityDetectorAcceptWaveform')
-        .asFunction();
-
-    voiceActivityDetectorEmpty ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorEmptyNative>>(
-            'SherpaOnnxVoiceActivityDetectorEmpty')
-        .asFunction();
-
-    voiceActivityDetectorDetected ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorDetectedNative>>(
-            'SherpaOnnxVoiceActivityDetectorDetected')
-        .asFunction();
-
-    voiceActivityDetectorPop ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorPopNative>>(
-            'SherpaOnnxVoiceActivityDetectorPop')
-        .asFunction();
-
-    voiceActivityDetectorClear ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorClearNative>>(
-            'SherpaOnnxVoiceActivityDetectorClear')
-        .asFunction();
-
-    voiceActivityDetectorFront ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorFrontNative>>(
-            'SherpaOnnxVoiceActivityDetectorFront')
-        .asFunction();
-
-    destroySpeechSegment ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxDestroySpeechSegmentNative>>(
-            'SherpaOnnxDestroySpeechSegment')
-        .asFunction();
-
-    voiceActivityDetectorReset ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxVoiceActivityDetectorResetNative>>(
-            'SherpaOnnxVoiceActivityDetectorReset')
-        .asFunction();
-
-    createCircularBuffer ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCreateCircularBufferNative>>(
-            'SherpaOnnxCreateCircularBuffer')
-        .asFunction();
-
-    destroyCircularBuffer ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxDestroyCircularBufferNative>>(
-            'SherpaOnnxDestroyCircularBuffer')
-        .asFunction();
-
-    circularBufferPush ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferPushNative>>(
-            'SherpaOnnxCircularBufferPush')
-        .asFunction();
-
-    circularBufferGet ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferGetNative>>(
-            'SherpaOnnxCircularBufferGet')
-        .asFunction();
-
-    circularBufferFree ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferFreeNative>>(
-            'SherpaOnnxCircularBufferFree')
-        .asFunction();
-
-    circularBufferPop ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferPopNative>>(
-            'SherpaOnnxCircularBufferPop')
-        .asFunction();
-
-    circularBufferSize ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferSizeNative>>(
-            'SherpaOnnxCircularBufferSize')
-        .asFunction();
-
-    circularBufferHead ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferHeadNative>>(
-            'SherpaOnnxCircularBufferHead')
-        .asFunction();
-
-    circularBufferReset ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCircularBufferResetNative>>(
-            'SherpaOnnxCircularBufferReset')
-        .asFunction();
-
-    createSpeakerEmbeddingExtractor ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxCreateSpeakerEmbeddingExtractorNative>>(
-            'SherpaOnnxCreateSpeakerEmbeddingExtractor')
-        .asFunction();
-
-    destroySpeakerEmbeddingExtractor ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxDestroySpeakerEmbeddingExtractorNative>>(
-            'SherpaOnnxDestroySpeakerEmbeddingExtractor')
-        .asFunction();
-
-    speakerEmbeddingExtractorDim ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxSpeakerEmbeddingExtractorDimNative>>(
-            'SherpaOnnxSpeakerEmbeddingExtractorDim')
-        .asFunction();
-
-    speakerEmbeddingExtractorCreateStream ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingExtractorCreateStreamNative>>(
-            'SherpaOnnxSpeakerEmbeddingExtractorCreateStream')
-        .asFunction();
-
-    speakerEmbeddingExtractorComputeEmbedding ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingExtractorComputeEmbeddingNative>>(
-            'SherpaOnnxSpeakerEmbeddingExtractorComputeEmbedding')
-        .asFunction();
-
-    speakerEmbeddingExtractorDestroyEmbedding ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingExtractorDestroyEmbeddingNative>>(
-            'SherpaOnnxSpeakerEmbeddingExtractorDestroyEmbedding')
-        .asFunction();
-
-    destroyOnlineStream ??= dynamicLibrary
-        .lookup<NativeFunction<DestroyOnlineStreamNative>>(
-            'DestroyOnlineStream')
-        .asFunction();
-
-    onlineStreamAcceptWaveform ??= dynamicLibrary
-        .lookup<NativeFunction<OnlineStreamAcceptWaveformNative>>(
-            'AcceptWaveform')
-        .asFunction();
-
-    onlineStreamInputFinished ??= dynamicLibrary
-        .lookup<NativeFunction<OnlineStreamInputFinishedNative>>(
-            'InputFinished')
-        .asFunction();
-
-    speakerEmbeddingExtractorIsReady ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingExtractorIsReadyNative>>(
-            'SherpaOnnxSpeakerEmbeddingExtractorIsReady')
-        .asFunction();
-
-    createSpeakerEmbeddingManager ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxCreateSpeakerEmbeddingManagerNative>>(
-            'SherpaOnnxCreateSpeakerEmbeddingManager')
-        .asFunction();
-
-    destroySpeakerEmbeddingManager ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxDestroySpeakerEmbeddingManagerNative>>(
-            'SherpaOnnxDestroySpeakerEmbeddingManager')
-        .asFunction();
-
-    speakerEmbeddingManagerAdd ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxSpeakerEmbeddingManagerAddNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerAdd')
-        .asFunction();
-
-    speakerEmbeddingManagerAddListFlattened ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerAddListFlattenedNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerAddListFlattened')
-        .asFunction();
-
-    speakerEmbeddingManagerRemove ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxSpeakerEmbeddingManagerRemoveNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerRemove')
-        .asFunction();
-
-    speakerEmbeddingManagerContains ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerContainsNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerContains')
-        .asFunction();
-
-    speakerEmbeddingManagerSearch ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxSpeakerEmbeddingManagerSearchNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerSearch')
-        .asFunction();
-
-    speakerEmbeddingManagerFreeSearch ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerFreeSearchNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerFreeSearch')
-        .asFunction();
-
-    speakerEmbeddingManagerNumSpeakers ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerNumSpeakersNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerNumSpeakers')
-        .asFunction();
-
-    speakerEmbeddingManagerVerify ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxSpeakerEmbeddingManagerVerifyNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerVerify')
-        .asFunction();
-
-    speakerEmbeddingManagerGetAllSpeakers ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakersNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerGetAllSpeakers')
-        .asFunction();
-
-    speakerEmbeddingManagerFreeAllSpeakers ??= dynamicLibrary
-        .lookup<
-                NativeFunction<
-                    SherpaOnnxSpeakerEmbeddingManagerFreeAllSpeakersNative>>(
-            'SherpaOnnxSpeakerEmbeddingManagerFreeAllSpeakers')
-        .asFunction();
-
-    readWave ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxReadWaveNative>>('SherpaOnnxReadWave')
-        .asFunction();
-
-    writeWave ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxWriteWaveNative>>(
-            'SherpaOnnxWriteWave')
-        .asFunction();
-
-    freeWave ??= dynamicLibrary
-        .lookup<NativeFunction<SherpaOnnxFreeWaveNative>>('SherpaOnnxFreeWave')
-        .asFunction();
-  }
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './online_stream.dart';
-import './sherpa_onnx_bindings.dart';
-
-class SpeakerEmbeddingExtractorConfig {
-  const SpeakerEmbeddingExtractorConfig(
-      {required this.model,
-      this.numThreads = 1,
-      this.debug = true,
-      this.provider = 'cpu'});
-
-  @override
-  String toString() {
-    return 'SpeakerEmbeddingExtractorConfig(model: $model, numThreads: $numThreads, debug: $debug, provider: $provider)';
-  }
-
-  final String model;
-  final int numThreads;
-  final bool debug;
-  final String provider;
-}
-
-class SpeakerEmbeddingExtractor {
-  SpeakerEmbeddingExtractor._({required this.ptr, required this.dim});
-
-  /// The user is responsible to call the SpeakerEmbeddingExtractor.free()
-  /// method of the returned instance to avoid memory leak.
-  factory SpeakerEmbeddingExtractor(
-      {required SpeakerEmbeddingExtractorConfig config}) {
-    final c = calloc<SherpaOnnxSpeakerEmbeddingExtractorConfig>();
-
-    final modelPtr = config.model.toNativeUtf8();
-    c.ref.model = modelPtr;
-
-    c.ref.numThreads = config.numThreads;
-    c.ref.debug = config.debug ? 1 : 0;
-
-    final providerPtr = config.provider.toNativeUtf8();
-    c.ref.provider = providerPtr;
-
-    final ptr =
-        SherpaOnnxBindings.createSpeakerEmbeddingExtractor?.call(c) ?? nullptr;
-
-    calloc.free(providerPtr);
-    calloc.free(modelPtr);
-    calloc.free(c);
-
-    final dim = SherpaOnnxBindings.speakerEmbeddingExtractorDim?.call(ptr) ?? 0;
-
-    return SpeakerEmbeddingExtractor._(ptr: ptr, dim: dim);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroySpeakerEmbeddingExtractor?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// The user has to invoke stream.free() on the returned instance
-  /// to avoid memory leak
-  OnlineStream createStream() {
-    final p =
-        SherpaOnnxBindings.speakerEmbeddingExtractorCreateStream?.call(ptr) ??
-            nullptr;
-
-    return OnlineStream(ptr: p);
-  }
-
-  bool isReady(OnlineStream stream) {
-    final int ready = SherpaOnnxBindings.speakerEmbeddingExtractorIsReady
-            ?.call(ptr, stream.ptr) ??
-        0;
-    return ready == 1;
-  }
-
-  Float32List compute(OnlineStream stream) {
-    final Pointer<Float> embedding = SherpaOnnxBindings
-            .speakerEmbeddingExtractorComputeEmbedding
-            ?.call(ptr, stream.ptr) ??
-        nullptr;
-
-    if (embedding == nullptr) {
-      return Float32List(0);
-    }
-
-    final embeddingList = embedding.asTypedList(dim);
-    final ans = Float32List(dim);
-    ans.setAll(0, embeddingList);
-
-    SherpaOnnxBindings.speakerEmbeddingExtractorDestroyEmbedding
-        ?.call(embedding);
-
-    return ans;
-  }
-
-  Pointer<SherpaOnnxSpeakerEmbeddingExtractor> ptr;
-  final int dim;
-}
-
-class SpeakerEmbeddingManager {
-  SpeakerEmbeddingManager._({required this.ptr, required this.dim});
-
-  // The user has to use SpeakerEmbeddingManager.free() to avoid memory leak
-  factory SpeakerEmbeddingManager(int dim) {
-    final p =
-        SherpaOnnxBindings.createSpeakerEmbeddingManager?.call(dim) ?? nullptr;
-    return SpeakerEmbeddingManager._(ptr: p, dim: dim);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroySpeakerEmbeddingManager?.call(ptr);
-    ptr = nullptr;
-  }
-
-  /// Return true if added successfully; return false otherwise
-  bool add({required String name, required Float32List embedding}) {
-    assert(embedding.length == dim, '${embedding.length} vs $dim');
-
-    final Pointer<Utf8> namePtr = name.toNativeUtf8();
-    final int n = embedding.length;
-
-    final Pointer<Float> p = calloc<Float>(n);
-    final pList = p.asTypedList(n);
-    pList.setAll(0, embedding);
-
-    final int ok =
-        SherpaOnnxBindings.speakerEmbeddingManagerAdd?.call(ptr, namePtr, p) ??
-            0;
-
-    calloc.free(p);
-    calloc.free(namePtr);
-
-    return ok == 1;
-  }
-
-  bool addMulti(
-      {required String name, required List<Float32List> embeddingList}) {
-    final Pointer<Utf8> namePtr = name.toNativeUtf8();
-    final int n = embeddingList.length;
-
-    final Pointer<Float> p = calloc<Float>(n * dim);
-    final pList = p.asTypedList(n * dim);
-
-    int offset = 0;
-    for (final e in embeddingList) {
-      assert(e.length == dim, '${e.length} vs $dim');
-
-      pList.setAll(offset, e);
-      offset += dim;
-    }
-
-    final int ok = SherpaOnnxBindings.speakerEmbeddingManagerAddListFlattened
-            ?.call(ptr, namePtr, p, n) ??
-        0;
-
-    calloc.free(p);
-    calloc.free(namePtr);
-
-    return ok == 1;
-  }
-
-  bool contains(String name) {
-    final Pointer<Utf8> namePtr = name.toNativeUtf8();
-
-    final int found = SherpaOnnxBindings.speakerEmbeddingManagerContains
-            ?.call(ptr, namePtr) ??
-        0;
-
-    calloc.free(namePtr);
-
-    return found == 1;
-  }
-
-  bool remove(String name) {
-    final Pointer<Utf8> namePtr = name.toNativeUtf8();
-
-    final int ok =
-        SherpaOnnxBindings.speakerEmbeddingManagerRemove?.call(ptr, namePtr) ??
-            0;
-
-    calloc.free(namePtr);
-
-    return ok == 1;
-  }
-
-  /// Return an empty string if no speaker is found
-  String search({required Float32List embedding, required double threshold}) {
-    assert(embedding.length == dim);
-
-    final Pointer<Float> p = calloc<Float>(dim);
-    final pList = p.asTypedList(dim);
-    pList.setAll(0, embedding);
-
-    final Pointer<Utf8> name = SherpaOnnxBindings.speakerEmbeddingManagerSearch
-            ?.call(ptr, p, threshold) ??
-        nullptr;
-
-    calloc.free(p);
-
-    if (name == nullptr) {
-      return '';
-    }
-
-    final String ans = name.toDartString();
-
-    SherpaOnnxBindings.speakerEmbeddingManagerFreeSearch?.call(name);
-
-    return ans;
-  }
-
-  bool verify(
-      {required String name,
-      required Float32List embedding,
-      required double threshold}) {
-    assert(embedding.length == dim);
-
-    final Pointer<Utf8> namePtr = name.toNativeUtf8();
-
-    final Pointer<Float> p = calloc<Float>(dim);
-    final pList = p.asTypedList(dim);
-    pList.setAll(0, embedding);
-
-    final int ok = SherpaOnnxBindings.speakerEmbeddingManagerVerify
-            ?.call(ptr, namePtr, p, threshold) ??
-        0;
-
-    calloc.free(p);
-    calloc.free(namePtr);
-
-    return ok == 1;
-  }
-
-  int get numSpeakers =>
-      SherpaOnnxBindings.speakerEmbeddingManagerNumSpeakers?.call(ptr) ?? 0;
-
-  List<String> get allSpeakerNames {
-    int n = numSpeakers;
-    if (n == 0) {
-      return <String>[];
-    }
-
-    final Pointer<Pointer<Utf8>> names =
-        SherpaOnnxBindings.speakerEmbeddingManagerGetAllSpeakers?.call(ptr) ??
-            nullptr;
-
-    if (names == nullptr) {
-      return <String>[];
-    }
-
-    final ans = <String>[];
-
-    // see https://api.flutter.dev/flutter/dart-ffi/PointerPointer.html
-    for (int i = 0; i != n; ++i) {
-      String name = names[i].toDartString();
-      ans.add(name);
-    }
-
-    SherpaOnnxBindings.speakerEmbeddingManagerFreeAllSpeakers?.call(names);
-
-    return ans;
-  }
-
-  Pointer<SherpaOnnxSpeakerEmbeddingManager> ptr;
-  final int dim;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-class OfflineTtsVitsModelConfig {
-  const OfflineTtsVitsModelConfig({
-    required this.model,
-    this.lexicon = '',
-    required this.tokens,
-    this.dataDir = '',
-    this.noiseScale = 0.667,
-    this.noiseScaleW = 0.8,
-    this.lengthScale = 1.0,
-    this.dictDir = '',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineTtsVitsModelConfig(model: $model, lexicon: $lexicon, tokens: $tokens, dataDir: $dataDir, noiseScale: $noiseScale, noiseScaleW: $noiseScaleW, lengthScale: $lengthScale, dictDir: $dictDir)';
-  }
-
-  final String model;
-  final String lexicon;
-  final String tokens;
-  final String dataDir;
-  final double noiseScale;
-  final double noiseScaleW;
-  final double lengthScale;
-  final String dictDir;
-}
-
-class OfflineTtsModelConfig {
-  const OfflineTtsModelConfig({
-    required this.vits,
-    this.numThreads = 1,
-    this.debug = true,
-    this.provider = 'cpu',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineTtsModelConfig(vits: $vits, numThreads: $numThreads, debug: $debug, provider: $provider)';
-  }
-
-  final OfflineTtsVitsModelConfig vits;
-  final int numThreads;
-  final bool debug;
-  final String provider;
-}
-
-class OfflineTtsConfig {
-  const OfflineTtsConfig({
-    required this.model,
-    this.ruleFsts = '',
-    this.maxNumSenetences = 1,
-    this.ruleFars = '',
-  });
-
-  @override
-  String toString() {
-    return 'OfflineTtsConfig(model: $model, ruleFsts: $ruleFsts, maxNumSenetences: $maxNumSenetences, ruleFars: $ruleFars)';
-  }
-
-  final OfflineTtsModelConfig model;
-  final String ruleFsts;
-  final int maxNumSenetences;
-  final String ruleFars;
-}
-
-class GeneratedAudio {
-  GeneratedAudio({
-    required this.samples,
-    required this.sampleRate,
-  });
-
-  final Float32List samples;
-  final int sampleRate;
-}
-
-class OfflineTts {
-  OfflineTts._({required this.ptr, required this.config});
-
-  /// The user is responsible to call the OfflineTts.free()
-  /// method of the returned instance to avoid memory leak.
-  factory OfflineTts(OfflineTtsConfig config) {
-    final c = calloc<SherpaOnnxOfflineTtsConfig>();
-    c.ref.model.vits.model = config.model.vits.model.toNativeUtf8();
-    c.ref.model.vits.lexicon = config.model.vits.lexicon.toNativeUtf8();
-    c.ref.model.vits.tokens = config.model.vits.tokens.toNativeUtf8();
-    c.ref.model.vits.dataDir = config.model.vits.dataDir.toNativeUtf8();
-    c.ref.model.vits.noiseScale = config.model.vits.noiseScale;
-    c.ref.model.vits.noiseScaleW = config.model.vits.noiseScaleW;
-    c.ref.model.vits.lengthScale = config.model.vits.lengthScale;
-    c.ref.model.vits.dictDir = config.model.vits.dictDir.toNativeUtf8();
-
-    c.ref.model.numThreads = config.model.numThreads;
-    c.ref.model.debug = config.model.debug ? 1 : 0;
-    c.ref.model.provider = config.model.provider.toNativeUtf8();
-
-    c.ref.ruleFsts = config.ruleFsts.toNativeUtf8();
-    c.ref.maxNumSenetences = config.maxNumSenetences;
-    c.ref.ruleFars = config.ruleFars.toNativeUtf8();
-
-    final ptr = SherpaOnnxBindings.createOfflineTts?.call(c) ?? nullptr;
-
-    calloc.free(c.ref.ruleFars);
-    calloc.free(c.ref.ruleFsts);
-    calloc.free(c.ref.model.provider);
-    calloc.free(c.ref.model.vits.dictDir);
-    calloc.free(c.ref.model.vits.dataDir);
-    calloc.free(c.ref.model.vits.tokens);
-    calloc.free(c.ref.model.vits.lexicon);
-    calloc.free(c.ref.model.vits.model);
-
-    return OfflineTts._(ptr: ptr, config: config);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroyOfflineTts?.call(ptr);
-    ptr = nullptr;
-  }
-
-  GeneratedAudio generate(
-      {required String text, int sid = 0, double speed = 1.0}) {
-    final Pointer<Utf8> textPtr = text.toNativeUtf8();
-    final p =
-        SherpaOnnxBindings.offlineTtsGenerate?.call(ptr, textPtr, sid, speed) ??
-            nullptr;
-    calloc.free(textPtr);
-
-    if (p == nullptr) {
-      return GeneratedAudio(samples: Float32List(0), sampleRate: 0);
-    }
-
-    final samples = p.ref.samples.asTypedList(p.ref.n);
-    final sampleRate = p.ref.sampleRate;
-    final newSamples = Float32List.fromList(samples);
-
-    SherpaOnnxBindings.destroyOfflineTtsGeneratedAudio?.call(p);
-
-    return GeneratedAudio(samples: newSamples, sampleRate: sampleRate);
-  }
-
-  GeneratedAudio generateWithCallback(
-      {required String text,
-      int sid = 0,
-      double speed = 1.0,
-      required int Function(Float32List samples) callback}) {
-    // see
-    // https://github.com/dart-lang/sdk/issues/54276#issuecomment-1846109285
-    // https://stackoverflow.com/questions/69537440/callbacks-in-dart-dartffi-only-supports-calling-static-dart-functions-from-nat
-    // https://github.com/dart-lang/sdk/blob/main/tests/ffi/isolate_local_function_callbacks_test.dart#L46
-    final wrapper =
-        NativeCallable<SherpaOnnxGeneratedAudioCallbackNative>.isolateLocal(
-            (Pointer<Float> samples, int n) {
-      final s = samples.asTypedList(n);
-      final newSamples = Float32List.fromList(s);
-      return callback(newSamples);
-    }, exceptionalReturn: 0);
-
-    final Pointer<Utf8> textPtr = text.toNativeUtf8();
-    final p = SherpaOnnxBindings.offlineTtsGenerateWithCallback
-            ?.call(ptr, textPtr, sid, speed, wrapper.nativeFunction) ??
-        nullptr;
-
-    calloc.free(textPtr);
-    wrapper.close();
-
-    if (p == nullptr) {
-      return GeneratedAudio(samples: Float32List(0), sampleRate: 0);
-    }
-
-    final samples = p.ref.samples.asTypedList(p.ref.n);
-    final sampleRate = p.ref.sampleRate;
-    final newSamples = Float32List.fromList(samples);
-
-    SherpaOnnxBindings.destroyOfflineTtsGeneratedAudio?.call(p);
-
-    return GeneratedAudio(samples: newSamples, sampleRate: sampleRate);
-  }
-
-  int get sampleRate => SherpaOnnxBindings.offlineTtsSampleRate?.call(ptr) ?? 0;
-
-  int get numSpeakers =>
-      SherpaOnnxBindings.offlineTtsNumSpeakers?.call(ptr) ?? 0;
-
-  Pointer<SherpaOnnxOfflineTts> ptr;
-  OfflineTtsConfig config;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-class SileroVadModelConfig {
-  const SileroVadModelConfig(
-      {this.model = '',
-      this.threshold = 0.5,
-      this.minSilenceDuration = 0.5,
-      this.minSpeechDuration = 0.25,
-      this.windowSize = 512});
-
-  @override
-  String toString() {
-    return 'SileroVadModelConfig(model: $model, threshold: $threshold, minSilenceDuration: $minSilenceDuration, minSpeechDuration: $minSpeechDuration, windowSize: $windowSize)';
-  }
-
-  final String model;
-  final double threshold;
-  final double minSilenceDuration;
-  final double minSpeechDuration;
-  final int windowSize;
-}
-
-class VadModelConfig {
-  VadModelConfig(
-      {this.sileroVad = const SileroVadModelConfig(),
-      this.sampleRate = 16000,
-      this.numThreads = 1,
-      this.provider = 'cpu',
-      this.debug = true});
-
-  @override
-  String toString() {
-    return 'VadModelConfig(sileroVad: $sileroVad, sampleRate: $sampleRate, numThreads: $numThreads, provider: $provider, debug: $debug)';
-  }
-
-  final SileroVadModelConfig sileroVad;
-  final int sampleRate;
-  final int numThreads;
-  final String provider;
-  final bool debug;
-}
-
-class SpeechSegment {
-  SpeechSegment({required this.samples, required this.start});
-  final Float32List samples;
-  final int start;
-}
-
-class CircularBuffer {
-  CircularBuffer._({required this.ptr});
-
-  /// The user has to invoke CircularBuffer.free() on the returned instance
-  /// to avoid memory leak.
-  factory CircularBuffer({required int capacity}) {
-    assert(capacity > 0, 'capacity is $capacity');
-    final p =
-        SherpaOnnxBindings.createCircularBuffer?.call(capacity) ?? nullptr;
-
-    return CircularBuffer._(ptr: p);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroyCircularBuffer?.call(ptr);
-    ptr = nullptr;
-  }
-
-  void push(Float32List data) {
-    final n = data.length;
-    final Pointer<Float> p = calloc<Float>(n);
-
-    final pList = p.asTypedList(n);
-    pList.setAll(0, data);
-
-    SherpaOnnxBindings.circularBufferPush?.call(ptr, p, n);
-
-    calloc.free(p);
-  }
-
-  Float32List get({required int startIndex, required int n}) {
-    final Pointer<Float> p =
-        SherpaOnnxBindings.circularBufferGet?.call(ptr, startIndex, n) ??
-            nullptr;
-
-    if (p == nullptr) {
-      return Float32List(0);
-    }
-
-    final pList = p.asTypedList(n);
-    final Float32List ans = Float32List.fromList(pList);
-
-    SherpaOnnxBindings.circularBufferFree?.call(p);
-
-    return ans;
-  }
-
-  void pop(int n) {
-    SherpaOnnxBindings.circularBufferPop?.call(ptr, n);
-  }
-
-  void reset() {
-    SherpaOnnxBindings.circularBufferReset?.call(ptr);
-  }
-
-  int get size => SherpaOnnxBindings.circularBufferSize?.call(ptr) ?? 0;
-  int get head => SherpaOnnxBindings.circularBufferHead?.call(ptr) ?? 0;
-
-  Pointer<SherpaOnnxCircularBuffer> ptr;
-}
-
-class VoiceActivityDetector {
-  VoiceActivityDetector._({required this.ptr, required this.config});
-
-  // The user has to invoke VoiceActivityDetector.free() to avoid memory leak.
-  factory VoiceActivityDetector(
-      {required VadModelConfig config, required double bufferSizeInSeconds}) {
-    final c = calloc<SherpaOnnxVadModelConfig>();
-
-    final modelPtr = config.sileroVad.model.toNativeUtf8();
-    c.ref.sileroVad.model = modelPtr;
-
-    c.ref.sileroVad.threshold = config.sileroVad.threshold;
-    c.ref.sileroVad.minSilenceDuration = config.sileroVad.minSilenceDuration;
-    c.ref.sileroVad.minSpeechDuration = config.sileroVad.minSpeechDuration;
-    c.ref.sileroVad.windowSize = config.sileroVad.windowSize;
-
-    c.ref.sampleRate = config.sampleRate;
-    c.ref.numThreads = config.numThreads;
-
-    final providerPtr = config.provider.toNativeUtf8();
-    c.ref.provider = providerPtr;
-
-    c.ref.debug = config.debug ? 1 : 0;
-
-    final ptr = SherpaOnnxBindings.createVoiceActivityDetector
-            ?.call(c, bufferSizeInSeconds) ??
-        nullptr;
-
-    calloc.free(providerPtr);
-    calloc.free(modelPtr);
-    calloc.free(c);
-
-    return VoiceActivityDetector._(ptr: ptr, config: config);
-  }
-
-  void free() {
-    SherpaOnnxBindings.destroyVoiceActivityDetector?.call(ptr);
-    ptr = nullptr;
-  }
-
-  void acceptWaveform(Float32List samples) {
-    final n = samples.length;
-    final Pointer<Float> p = calloc<Float>(n);
-
-    final pList = p.asTypedList(n);
-    pList.setAll(0, samples);
-
-    SherpaOnnxBindings.voiceActivityDetectorAcceptWaveform?.call(ptr, p, n);
-
-    calloc.free(p);
-  }
-
-  bool isEmpty() {
-    final int empty =
-        SherpaOnnxBindings.voiceActivityDetectorEmpty?.call(ptr) ?? 0;
-
-    return empty == 1;
-  }
-
-  bool isDetected() {
-    final int detected =
-        SherpaOnnxBindings.voiceActivityDetectorDetected?.call(ptr) ?? 0;
-
-    return detected == 1;
-  }
-
-  void pop() {
-    SherpaOnnxBindings.voiceActivityDetectorPop?.call(ptr);
-  }
-
-  void clear() {
-    SherpaOnnxBindings.voiceActivityDetectorClear?.call(ptr);
-  }
-
-  SpeechSegment front() {
-    final Pointer<SherpaOnnxSpeechSegment> segment =
-        SherpaOnnxBindings.voiceActivityDetectorFront?.call(ptr) ?? nullptr;
-    if (segment == nullptr) {
-      return SpeechSegment(samples: Float32List(0), start: 0);
-    }
-
-    final sampleList = segment.ref.samples.asTypedList(segment.ref.n);
-    final start = segment.ref.start;
-
-    final samples = Float32List.fromList(sampleList);
-
-    SherpaOnnxBindings.destroySpeechSegment?.call(segment);
-
-    return SpeechSegment(samples: samples, start: start);
-  }
-
-  void reset() {
-    SherpaOnnxBindings.voiceActivityDetectorReset?.call(ptr);
-  }
-
-  Pointer<SherpaOnnxVoiceActivityDetector> ptr;
-  final VadModelConfig config;
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-class WaveData {
-  WaveData({required this.samples, required this.sampleRate});
-
-  /// normalized to [-1, 1]
-  Float32List samples;
-  int sampleRate;
-}
-
-WaveData readWave(String filename) {
-  final Pointer<Utf8> str = filename.toNativeUtf8();
-  Pointer<SherpaOnnxWave> wave =
-      SherpaOnnxBindings.readWave?.call(str) ?? nullptr;
-  calloc.free(str);
-
-  if (wave == nullptr) {
-    return WaveData(samples: Float32List(0), sampleRate: 0);
-  }
-
-  final samples = wave.ref.samples.asTypedList(wave.ref.numSamples);
-
-  final newSamples = Float32List.fromList(samples);
-  int sampleRate = wave.ref.sampleRate;
-  SherpaOnnxBindings.freeWave?.call(wave);
-
-  return WaveData(samples: newSamples, sampleRate: sampleRate);
-}

-// Copyright (c)  2024  Xiaomi Corporation
-import 'dart:ffi';
-import 'dart:typed_data';
-import 'package:ffi/ffi.dart';
-
-import './sherpa_onnx_bindings.dart';
-
-bool writeWave(
-    {required String filename,
-    required Float32List samples,
-    required int sampleRate}) {
-  final Pointer<Utf8> filenamePtr = filename.toNativeUtf8();
-
-  final n = samples.length;
-  final Pointer<Float> p = calloc<Float>(n);
-
-  final pList = p.asTypedList(n);
-  pList.setAll(0, samples);
-
-  int ok =
-      SherpaOnnxBindings.writeWave?.call(p, n, sampleRate, filenamePtr) ?? 0;
-
-  calloc.free(p);
-  calloc.free(filenamePtr);
-
-  return ok == 1;
-}

-# The Flutter tooling requires that developers have CMake 3.10 or later
-# installed. You should not increase this version, as doing so will cause
-# the plugin to fail to compile for some customers of the plugin.
-cmake_minimum_required(VERSION 3.10)
-
-# Project-level configuration.
-set(PROJECT_NAME "sherpa_onnx")
-project(${PROJECT_NAME} LANGUAGES CXX)
-
-# Invoke the build for native code shared with the other target platforms.
-# This can be changed to accommodate different builds.
-# add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/../src" "${CMAKE_CURRENT_BINARY_DIR}/shared")
-
-# List of absolute paths to libraries that should be bundled with the plugin.
-# This list could contain prebuilt libraries, or libraries created by an
-# external build triggered from this build file.
-set(sherpa_onnx_bundled_libraries
-  "${CMAKE_CURRENT_SOURCE_DIR}/libsherpa-onnx-c-api.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libsherpa-onnx-core.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libkaldi-decoder-core.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libsherpa-onnx-kaldifst-core.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libsherpa-onnx-fstfar.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libsherpa-onnx-fst.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libkaldi-native-fbank-core.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libpiper_phonemize.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libespeak-ng.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libucd.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libonnxruntime.so"
-  "${CMAKE_CURRENT_SOURCE_DIR}/libssentencepiece_core.so"
-  PARENT_SCOPE
-)

-#
-# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
-# Run `pod lib lint hello.podspec` to validate before publishing.
-#
-Pod::Spec.new do |s|
-  s.name             = 'sherpa_onnx'
-  s.version          = '0.0.1'
-  s.summary          = 'sherpa-onnx Flutter FFI plugin project.'
-  s.description      = <<-DESC
-sherpa-onnx Flutter FFI plugin project.
-                       DESC
-  s.homepage         = 'https://github.com/k2-fsa/sherpa-onnx'
-  s.license          = { :file => '../LICENSE' }
-  s.author           = { 'Your Company' => 'email@example.com' }
-
-  # This will ensure the source files in Classes/ are included in the native
-  # builds of apps using this FFI plugin. Podspec does not support relative
-  # paths, so Classes contains a forwarder C file that relatively imports
-  # `../src/*` so that the C sources can be shared among all target platforms.
-  s.source           = { :path => '.' }
-  s.dependency 'FlutterMacOS'
-  s.vendored_libraries = '*.dylib'
-
-  s.platform = :osx, '10.11'
-  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
-  s.swift_version = '5.0'
-end

-name: sherpa_onnx
-
-description: >
-  Speech recognition, speech synthesis, and speaker recognition using next-gen Kaldi
-  with onnxruntime without Internet connection.
-
-repository: https://github.com/k2-fsa/sherpa-onnx/tree/master/sherpa-onnx/flutter
-
-issue_tracker: https://github.com/k2-fsa/sherpa-onnx/issues
-documentation: https://k2-fsa.github.io/sherpa/onnx/
-
-topics:
-  - speech-recognition
-  - speech-synthesis
-  - speaker-identification
-  - audio-tagging
-  - voice-activity-detection
-
-# remember to change the version in macos/sherpa_onnx.podspec
-version: 1.9.29
-
-homepage: https://github.com/k2-fsa/sherpa-onnx
-
-environment:
-  sdk: '>=3.4.0 <4.0.0'
-  flutter: '>=3.3.0'
-
-dependencies:
-  ffi: ^2.1.0
-  flutter:
-    sdk: flutter
-
-
-# The following section is specific to Flutter packages.
-flutter:
-  plugin:
-    platforms:
-      macos:
-        ffiPlugin: true
-      windows:
-        ffiPlugin: true
-      linux:
-        ffiPlugin: true

-# The Flutter tooling requires that developers have a version of Visual Studio
-# installed that includes CMake 3.14 or later. You should not increase this
-# version, as doing so will cause the plugin to fail to compile for some
-# customers of the plugin.
-cmake_minimum_required(VERSION 3.14)
-
-# Project-level configuration.
-set(PROJECT_NAME "sherpa_onnx")
-project(${PROJECT_NAME} LANGUAGES CXX)
-
-# Invoke the build for native code shared with the other target platforms.
-# This can be changed to accommodate different builds.
-# add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/../src" "${CMAKE_CURRENT_BINARY_DIR}/shared")
-
-# List of absolute paths to libraries that should be bundled with the plugin.
-# This list could contain prebuilt libraries, or libraries created by an
-# external build triggered from this build file.
-set(sherpa_onnx_bundled_libraries
-  "${CMAKE_CURRENT_SOURCE_DIR}/sherpa-onnx-c-api.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/sherpa-onnx-core.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/kaldi-decoder-core.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/sherpa-onnx-kaldifst-core.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/sherpa-onnx-fstfar.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/sherpa-onnx-fst.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/kaldi-native-fbank-core.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/piper_phonemize.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/espeak-ng.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/ucd.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/onnxruntime.dll"
-  "${CMAKE_CURRENT_SOURCE_DIR}/ssentencepiece_core.dll"
-  PARENT_SCOPE
-)