xuning / sherpaonnx

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Fangjun Kuang
Committed by GitHub
9ac74724 1 parent ae1f9e79

Add SwiftUI demo project (#118) 

* Commit after creating the project

* Add sherpa-onnx related files

* copy and modify files from sherpa-ncnn

* add app icon
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正在显示 19 个修改的文件 包含 1097 行增加 和 0 行删除
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  406 + CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
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  408 + CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
  409 + CLANG_WARN_EMPTY_BODY = YES;
  410 + CLANG_WARN_ENUM_CONVERSION = YES;
  411 + CLANG_WARN_INFINITE_RECURSION = YES;
  412 + CLANG_WARN_INT_CONVERSION = YES;
  413 + CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
  414 + CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
  415 + CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
  416 + CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
  417 + CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
  418 + CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
  419 + CLANG_WARN_STRICT_PROTOTYPES = YES;
  420 + CLANG_WARN_SUSPICIOUS_MOVE = YES;
  421 + CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
  422 + CLANG_WARN_UNREACHABLE_CODE = YES;
  423 + CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
  424 + COPY_PHASE_STRIP = NO;
  425 + DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
  426 + ENABLE_NS_ASSERTIONS = NO;
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  610 + C924F35429DDAC0D00A440A5 /* Build configuration list for PBXNativeTarget "SherpaOnnxUITests" */ = {
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  615 + );
  616 + defaultConfigurationIsVisible = 0;
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  618 + };
  619 +/* End XCConfigurationList section */
  620 + };
  621 + rootObject = C924F32229DDAC0B00A440A5 /* Project object */;
  622 +}
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<Workspace
  3 + version = "1.0">
  4 + <FileRef
  5 + location = "self:">
  6 + </FileRef>
  7 +</Workspace>
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
  3 +<plist version="1.0">
  4 +<dict>
  5 + <key>IDEDidComputeMac32BitWarning</key>
  6 + <true/>
  7 +</dict>
  8 +</plist>
  1 +<?xml version="1.0" encoding="UTF-8"?>
  2 +<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
  3 +<plist version="1.0">
  4 +<dict>
  5 + <key>SchemeUserState</key>
  6 + <dict>
  7 + <key>SherpaOnnx.xcscheme_^#shared#^_</key>
  8 + <dict>
  9 + <key>orderHint</key>
  10 + <integer>0</integer>
  11 + </dict>
  12 + </dict>
  13 +</dict>
  14 +</plist>
  1 +{
  2 + "colors" : [
  3 + {
  4 + "idiom" : "universal"
  5 + }
  6 + ],
  7 + "info" : {
  8 + "author" : "xcode",
  9 + "version" : 1
  10 + }
  11 +}
  1 +{
  2 + "images" : [
  3 + {
  4 + "filename" : "k2-1024x1024.png",
  5 + "idiom" : "universal",
  6 + "platform" : "ios",
  7 + "size" : "1024x1024"
  8 + }
  9 + ],
  10 + "info" : {
  11 + "author" : "xcode",
  12 + "version" : 1
  13 + }
  14 +}
  1 +{
  2 + "info" : {
  3 + "author" : "xcode",
  4 + "version" : 1
  5 + }
  6 +}
  1 +//
  2 +// ContentView.swift
  3 +// SherpaOnnx
  4 +//
  5 +// Created by fangjun on 2023/4/5.
  6 +//
  7 +
  8 +import SwiftUI
  9 +
  10 +struct ContentView: View {
  11 + @StateObject var sherpaOnnxVM = SherpaOnnxViewModel()
  12 +
  13 + var body: some View {
  14 + VStack {
  15 + Text("ASR with Next-gen Kaldi")
  16 + .font(.title)
  17 + if sherpaOnnxVM.status == .stop {
  18 + Text("See https://github.com/k2-fsa/sherpa-onnx")
  19 + Text("Press the Start button to run!")
  20 + }
  21 + ScrollView(.vertical, showsIndicators: true) {
  22 + HStack {
  23 + Text(sherpaOnnxVM.subtitles)
  24 + Spacer()
  25 + }
  26 + }
  27 + Spacer()
  28 + Button {
  29 + toggleRecorder()
  30 + } label: {
  31 + Text(sherpaOnnxVM.status == .stop ? "Start" : "Stop")
  32 + }
  33 + }
  34 + .padding()
  35 + }
  36 +
  37 + private func toggleRecorder() {
  38 + sherpaOnnxVM.toggleRecorder()
  39 + }
  40 +}
  41 +
  42 +struct ContentView_Previews: PreviewProvider {
  43 + static var previews: some View {
  44 + ContentView()
  45 + }
  46 +}
  1 +//
  2 +// Extension.swift
  3 +// SherpaOnnx
  4 +//
  5 +// Created by knight on 2023/4/5.
  6 +//
  7 +
  8 +import AVFoundation
  9 +
  10 +extension AudioBuffer {
  11 + func array() -> [Float] {
  12 + return Array(UnsafeBufferPointer(self))
  13 + }
  14 +}
  15 +
  16 +extension AVAudioPCMBuffer {
  17 + func array() -> [Float] {
  18 + return self.audioBufferList.pointee.mBuffers.array()
  19 + }
  20 +}
  1 +import Foundation
  2 +
  3 +func getResource(_ forResource: String, _ ofType: String) -> String {
  4 + let path = Bundle.main.path(forResource: forResource, ofType: ofType)
  5 + precondition(
  6 + path != nil,
  7 + "\(forResource).\(ofType) does not exist!\n" + "Remember to change \n"
  8 + + " Build Phases -> Copy Bundle Resources\n" + "to add it!"
  9 + )
  10 + return path!
  11 +}
  12 +/// Please refer to
  13 +/// https://k2-fsa.github.io/sherpa/onnx/pretrained_models/index.html
  14 +/// to download pre-trained models
  15 +
  16 +/// sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20 (Bilingual, Chinese + English)
  17 +/// https://k2-fsa.github.io/sherpa/onnx/pretrained_models/zipformer-transducer-models.html
  18 +func getBilingualStreamZhEnZipformer20230220() -> SherpaOnnxOnlineTransducerModelConfig {
  19 + let encoder = getResource("encoder-epoch-99-avg-1", "onnx")
  20 + let decoder = getResource("decoder-epoch-99-avg-1", "onnx")
  21 + let joiner = getResource("joiner-epoch-99-avg-1", "onnx")
  22 + let tokens = getResource("tokens", "txt")
  23 +
  24 + return sherpaOnnxOnlineTransducerModelConfig(
  25 + encoder: encoder,
  26 + decoder: decoder,
  27 + joiner: joiner,
  28 + tokens: tokens,
  29 + numThreads: 2
  30 + )
  31 +}
  32 +
  33 +/// Please refer to
  34 +/// https://k2-fsa.github.io/sherpa/onnx/pretrained_models/index.html
  35 +/// to add more models if you need
  1 +{
  2 + "info" : {
  3 + "author" : "xcode",
  4 + "version" : 1
  5 + }
  6 +}
  1 +//
  2 +// SherpaOnnxApp.swift
  3 +// SherpaOnnx
  4 +//
  5 +// Created by fangjun on 2023/4/5.
  6 +//
  7 +
  8 +import SwiftUI
  9 +
  10 +@main
  11 +struct SherpaOnnxApp: App {
  12 + var body: some Scene {
  13 + WindowGroup {
  14 + ContentView()
  15 + }
  16 + }
  17 +}
  1 +//
  2 +// SherpaOnnxViewModel.swift
  3 +// SherpaOnnx
  4 +//
  5 +// Created by knight on 2023/4/5.
  6 +//
  7 +
  8 +import Foundation
  9 +import AVFoundation
  10 +
  11 +enum Status {
  12 + case stop
  13 + case recording
  14 +}
  15 +
  16 +class SherpaOnnxViewModel: ObservableObject {
  17 + @Published var status: Status = .stop
  18 + @Published var subtitles: String = ""
  19 +
  20 + var sentences: [String] = []
  21 +
  22 + var audioEngine: AVAudioEngine? = nil
  23 + var recognizer: SherpaOnnxRecognizer! = nil
  24 +
  25 + var lastSentence: String = ""
  26 + let maxSentence: Int = 20
  27 +
  28 + var results: String {
  29 + if sentences.isEmpty && lastSentence.isEmpty {
  30 + return ""
  31 + }
  32 + if sentences.isEmpty {
  33 + return "0: \(lastSentence.lowercased())"
  34 + }
  35 +
  36 + let start = max(sentences.count - maxSentence, 0)
  37 + if lastSentence.isEmpty {
  38 + return sentences.enumerated().map { (index, s) in "\(index): \(s.lowercased())" }[start...]
  39 + .joined(separator: "\n")
  40 + } else {
  41 + return sentences.enumerated().map { (index, s) in "\(index): \(s.lowercased())" }[start...]
  42 + .joined(separator: "\n") + "\n\(sentences.count): \(lastSentence.lowercased())"
  43 + }
  44 + }
  45 +
  46 + func updateLabel() {
  47 + DispatchQueue.main.async {
  48 + self.subtitles = self.results
  49 + }
  50 + }
  51 +
  52 + init() {
  53 + initRecognizer()
  54 + initRecorder()
  55 + }
  56 +
  57 + private func initRecognizer() {
  58 + // Please select one model that is best suitable for you.
  59 + //
  60 + // You can also modify Model.swift to add new pre-trained models from
  61 + // https://k2-fsa.github.io/sherpa/onnx/pretrained_models/index.html
  62 + let modelConfig = getBilingualStreamZhEnZipformer20230220()
  63 +
  64 + let featConfig = sherpaOnnxFeatureConfig(
  65 + sampleRate: 16000,
  66 + featureDim: 80)
  67 +
  68 + var config = sherpaOnnxOnlineRecognizerConfig(
  69 + featConfig: featConfig,
  70 + modelConfig: modelConfig,
  71 + enableEndpoint: true,
  72 + rule1MinTrailingSilence: 2.4,
  73 + rule2MinTrailingSilence: 0.8,
  74 + rule3MinUtteranceLength: 30,
  75 + decodingMethod: "greedy_search",
  76 + maxActivePaths: 4
  77 + )
  78 + recognizer = SherpaOnnxRecognizer(config: &config)
  79 + }
  80 +
  81 + private func initRecorder() {
  82 + print("init recorder")
  83 + audioEngine = AVAudioEngine()
  84 + let inputNode = self.audioEngine?.inputNode
  85 + let bus = 0
  86 + let inputFormat = inputNode?.outputFormat(forBus: bus)
  87 + let outputFormat = AVAudioFormat(
  88 + commonFormat: .pcmFormatFloat32,
  89 + sampleRate: 16000, channels: 1,
  90 + interleaved: false)!
  91 +
  92 + let converter = AVAudioConverter(from: inputFormat!, to: outputFormat)!
  93 +
  94 + inputNode!.installTap(
  95 + onBus: bus,
  96 + bufferSize: 1024,
  97 + format: inputFormat
  98 + ) {
  99 + (buffer: AVAudioPCMBuffer, when: AVAudioTime) in
  100 + var newBufferAvailable = true
  101 +
  102 + let inputCallback: AVAudioConverterInputBlock = {
  103 + inNumPackets, outStatus in
  104 + if newBufferAvailable {
  105 + outStatus.pointee = .haveData
  106 + newBufferAvailable = false
  107 +
  108 + return buffer
  109 + } else {
  110 + outStatus.pointee = .noDataNow
  111 + return nil
  112 + }
  113 + }
  114 +
  115 + let convertedBuffer = AVAudioPCMBuffer(
  116 + pcmFormat: outputFormat,
  117 + frameCapacity:
  118 + AVAudioFrameCount(outputFormat.sampleRate)
  119 + * buffer.frameLength
  120 + / AVAudioFrameCount(buffer.format.sampleRate))!
  121 +
  122 + var error: NSError?
  123 + let _ = converter.convert(
  124 + to: convertedBuffer,
  125 + error: &error, withInputFrom: inputCallback)
  126 +
  127 + // TODO(fangjun): Handle status != haveData
  128 +
  129 + let array = convertedBuffer.array()
  130 + if !array.isEmpty {
  131 + self.recognizer.acceptWaveform(samples: array)
  132 + while (self.recognizer.isReady()){
  133 + self.recognizer.decode()
  134 + }
  135 + let isEndpoint = self.recognizer.isEndpoint()
  136 + let text = self.recognizer.getResult().text
  137 +
  138 + if !text.isEmpty && self.lastSentence != text {
  139 + self.lastSentence = text
  140 + self.updateLabel()
  141 + print(text)
  142 + }
  143 +
  144 + if isEndpoint{
  145 + if !text.isEmpty {
  146 + let tmp = self.lastSentence
  147 + self.lastSentence = ""
  148 + self.sentences.append(tmp)
  149 + }
  150 + self.recognizer.reset()
  151 + }
  152 + }
  153 + }
  154 + }
  155 +
  156 + public func toggleRecorder() {
  157 + if status == .stop {
  158 + startRecorder()
  159 + status = .recording
  160 + } else {
  161 + stopRecorder()
  162 + status = .stop
  163 + }
  164 + }
  165 +
  166 + private func startRecorder() {
  167 + lastSentence = ""
  168 + sentences = []
  169 +
  170 + do {
  171 + try self.audioEngine?.start()
  172 + } catch let error as NSError {
  173 + print("Got an error starting audioEngine: \(error.domain), \(error)")
  174 + }
  175 + print("started")
  176 + }
  177 +
  178 + private func stopRecorder() {
  179 + audioEngine?.stop()
  180 + print("stopped")
  181 + }
  182 +}
  1 +//
  2 +// SherpaOnnxTests.swift
  3 +// SherpaOnnxTests
  4 +//
  5 +// Created by fangjun on 2023/4/5.
  6 +//
  7 +
  8 +import XCTest
  9 +@testable import SherpaOnnx
  10 +
  11 +final class SherpaOnnxTests: XCTestCase {
  12 +
  13 + override func setUpWithError() throws {
  14 + // Put setup code here. This method is called before the invocation of each test method in the class.
  15 + }
  16 +
  17 + override func tearDownWithError() throws {
  18 + // Put teardown code here. This method is called after the invocation of each test method in the class.
  19 + }
  20 +
  21 + func testExample() throws {
  22 + // This is an example of a functional test case.
  23 + // Use XCTAssert and related functions to verify your tests produce the correct results.
  24 + // Any test you write for XCTest can be annotated as throws and async.
  25 + // Mark your test throws to produce an unexpected failure when your test encounters an uncaught error.
  26 + // Mark your test async to allow awaiting for asynchronous code to complete. Check the results with assertions afterwards.
  27 + }
  28 +
  29 + func testPerformanceExample() throws {
  30 + // This is an example of a performance test case.
  31 + self.measure {
  32 + // Put the code you want to measure the time of here.
  33 + }
  34 + }
  35 +
  36 +}
  1 +//
  2 +// SherpaOnnxUITests.swift
  3 +// SherpaOnnxUITests
  4 +//
  5 +// Created by fangjun on 2023/4/5.
  6 +//
  7 +
  8 +import XCTest
  9 +
  10 +final class SherpaOnnxUITests: XCTestCase {
  11 +
  12 + override func setUpWithError() throws {
  13 + // Put setup code here. This method is called before the invocation of each test method in the class.
  14 +
  15 + // In UI tests it is usually best to stop immediately when a failure occurs.
  16 + continueAfterFailure = false
  17 +
  18 + // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
  19 + }
  20 +
  21 + override func tearDownWithError() throws {
  22 + // Put teardown code here. This method is called after the invocation of each test method in the class.
  23 + }
  24 +
  25 + func testExample() throws {
  26 + // UI tests must launch the application that they test.
  27 + let app = XCUIApplication()
  28 + app.launch()
  29 +
  30 + // Use XCTAssert and related functions to verify your tests produce the correct results.
  31 + }
  32 +
  33 + func testLaunchPerformance() throws {
  34 + if #available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 7.0, *) {
  35 + // This measures how long it takes to launch your application.
  36 + measure(metrics: [XCTApplicationLaunchMetric()]) {
  37 + XCUIApplication().launch()
  38 + }
  39 + }
  40 + }
  41 +}
  1 +//
  2 +// SherpaOnnxUITestsLaunchTests.swift
  3 +// SherpaOnnxUITests
  4 +//
  5 +// Created by fangjun on 2023/4/5.
  6 +//
  7 +
  8 +import XCTest
  9 +
  10 +final class SherpaOnnxUITestsLaunchTests: XCTestCase {
  11 +
  12 + override class var runsForEachTargetApplicationUIConfiguration: Bool {
  13 + true
  14 + }
  15 +
  16 + override func setUpWithError() throws {
  17 + continueAfterFailure = false
  18 + }
  19 +
  20 + func testLaunch() throws {
  21 + let app = XCUIApplication()
  22 + app.launch()
  23 +
  24 + // Insert steps here to perform after app launch but before taking a screenshot,
  25 + // such as logging into a test account or navigating somewhere in the app
  26 +
  27 + let attachment = XCTAttachment(screenshot: app.screenshot())
  28 + attachment.name = "Launch Screen"
  29 + attachment.lifetime = .keepAlways
  30 + add(attachment)
  31 + }
  32 +}