Allow to not use pre-installed onnxruntime libs. (#636)

@@ -26,6 +26,7 @@ option(SHERPA_ONNX_ENABLE_WASM_ASR "Whether to enable WASM for ASR" OFF)
 option(SHERPA_ONNX_ENABLE_WASM_NODEJS "Whether to enable WASM for NodeJS" OFF)
 option(SHERPA_ONNX_ENABLE_BINARY "Whether to build binaries" ON)
 option(SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY "True to link libstdc++ statically. Used only when BUILD_SHARED_LIBS is OFF on Linux" ON)
+option(SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE "True to use pre-installed onnxruntime if available" ON)
 
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
@@ -110,6 +111,7 @@ message(STATUS "SHERPA_ONNX_ENABLE_WASM ${SHERPA_ONNX_ENABLE_WASM}")
 message(STATUS "SHERPA_ONNX_ENABLE_WASM_TTS ${SHERPA_ONNX_ENABLE_WASM_TTS}")
 message(STATUS "SHERPA_ONNX_ENABLE_WASM_ASR ${SHERPA_ONNX_ENABLE_WASM_ASR}")
 message(STATUS "SHERPA_ONNX_ENABLE_WASM_NODEJS ${SHERPA_ONNX_ENABLE_WASM_NODEJS}")
+message(STATUS "SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE ${SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE}")
 
 if(SHERPA_ONNX_ENABLE_WASM_TTS)
   if(NOT SHERPA_ONNX_ENABLE_WASM)

@@ -117,67 +117,69 @@ function(download_onnxruntime)
   set(onnxruntime_SOURCE_DIR ${onnxruntime_SOURCE_DIR} PARENT_SCOPE)
 endfunction()
 
-# First, we try to locate the header and the lib if the use has already
-# installed onnxruntime. Otherwise, we will download the pre-compiled lib
+if(SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE)
+  # First, we try to locate the header and the lib if the user has already
+  # installed onnxruntime. Otherwise, we will download the pre-compiled lib
 
-message(STATUS "CMAKE_SYSTEM_NAME: ${CMAKE_SYSTEM_NAME}")
-message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
-
-if(DEFINED ENV{SHERPA_ONNXRUNTIME_INCLUDE_DIR})
-  set(location_onnxruntime_header_dir $ENV{SHERPA_ONNXRUNTIME_INCLUDE_DIR})
-
-  include_directories(${location_onnxruntime_header_dir})
-else()
-  find_path(location_onnxruntime_header_dir onnxruntime_cxx_api.h
-    PATHS
-      /usr/include
-      /usr/local/include
-  )
-endif()
+  message(STATUS "CMAKE_SYSTEM_NAME: ${CMAKE_SYSTEM_NAME}")
+  message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
 
-message(STATUS "location_onnxruntime_header_dir: ${location_onnxruntime_header_dir}")
+  if(DEFINED ENV{SHERPA_ONNXRUNTIME_INCLUDE_DIR})
+    set(location_onnxruntime_header_dir $ENV{SHERPA_ONNXRUNTIME_INCLUDE_DIR})
 
-if(DEFINED ENV{SHERPA_ONNXRUNTIME_LIB_DIR})
-  if(APPLE)
-    set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.dylib)
+    include_directories(${location_onnxruntime_header_dir})
   else()
-    set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.so)
+    find_path(location_onnxruntime_header_dir onnxruntime_cxx_api.h
+      PATHS
+        /usr/include
+        /usr/local/include
+    )
   endif()
-  if(NOT EXISTS ${location_onnxruntime_lib})
-    set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.a)
+
+  message(STATUS "location_onnxruntime_header_dir: ${location_onnxruntime_header_dir}")
+
+  if(DEFINED ENV{SHERPA_ONNXRUNTIME_LIB_DIR})
+    if(APPLE)
+      set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.dylib)
+    else()
+      set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.so)
+    endif()
     if(NOT EXISTS ${location_onnxruntime_lib})
-      message(FATAL_ERROR "${location_onnxruntime_lib} cannot be found")
+      set(location_onnxruntime_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.a)
+      if(NOT EXISTS ${location_onnxruntime_lib})
+        message(FATAL_ERROR "${location_onnxruntime_lib} cannot be found")
+      endif()
+      set(onnxruntime_lib_files $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.a)
+      message("Use static lib: ${onnxruntime_lib_files}")
     endif()
-    set(onnxruntime_lib_files $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime.a)
-    message("Use static lib: ${onnxruntime_lib_files}")
-  endif()
-  if(SHERPA_ONNX_ENABLE_GPU)
-    set(location_onnxruntime_cuda_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime_providers_cuda.so)
-    if(NOT EXISTS ${location_onnxruntime_cuda_lib})
-      set(location_onnxruntime_cuda_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime_providers_cuda.a)
+    if(SHERPA_ONNX_ENABLE_GPU)
+      set(location_onnxruntime_cuda_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime_providers_cuda.so)
+      if(NOT EXISTS ${location_onnxruntime_cuda_lib})
+        set(location_onnxruntime_cuda_lib $ENV{SHERPA_ONNXRUNTIME_LIB_DIR}/libonnxruntime_providers_cuda.a)
+      endif()
     endif()
-  endif()
-else()
-  find_library(location_onnxruntime_lib onnxruntime
-    PATHS
-      /lib
-      /usr/lib
-      /usr/local/lib
-  )
-
-  if(SHERPA_ONNX_ENABLE_GPU)
-    find_library(location_onnxruntime_cuda_lib onnxruntime_providers_cuda
+  else()
+    find_library(location_onnxruntime_lib onnxruntime
       PATHS
         /lib
         /usr/lib
         /usr/local/lib
     )
+
+    if(SHERPA_ONNX_ENABLE_GPU)
+      find_library(location_onnxruntime_cuda_lib onnxruntime_providers_cuda
+        PATHS
+          /lib
+          /usr/lib
+          /usr/local/lib
+      )
+    endif()
   endif()
-endif()
 
-message(STATUS "location_onnxruntime_lib: ${location_onnxruntime_lib}")
-if(SHERPA_ONNX_ENABLE_GPU)
-  message(STATUS "location_onnxruntime_cuda_lib: ${location_onnxruntime_cuda_lib}")
+  message(STATUS "location_onnxruntime_lib: ${location_onnxruntime_lib}")
+  if(SHERPA_ONNX_ENABLE_GPU)
+    message(STATUS "location_onnxruntime_cuda_lib: ${location_onnxruntime_cuda_lib}")
+  endif()
 endif()
 
 if(location_onnxruntime_header_dir AND location_onnxruntime_lib)
@@ -195,6 +197,10 @@ if(location_onnxruntime_header_dir AND location_onnxruntime_lib)
     endif()
   endif()
 else()
-  message(STATUS "Could not find a pre-installed onnxruntime. Downloading pre-compiled onnxruntime")
+  if(SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE)
+    message(STATUS "Could not find a pre-installed onnxruntime.")
+  endif()
+  message(STATUS "Downloading pre-compiled onnxruntime")
+
   download_onnxruntime()
 endif()

@@ -2,14 +2,16 @@
 //
 // Copyright (c)  2023-2024  Xiaomi Corporation
 
+#include "sherpa-onnx/csrc/transducer-keyword-decoder.h"
+
 #include <algorithm>
 #include <cmath>
+#include <cstring>
 #include <utility>
 #include <vector>
 
 #include "sherpa-onnx/csrc/log.h"
 #include "sherpa-onnx/csrc/onnx-utils.h"
-#include "sherpa-onnx/csrc/transducer-keyword-decoder.h"
 
 namespace sherpa_onnx {