Add Dart API for VAD (#904)

sherpa-onnx/flutter/lib/src/sherpa_onnx_bindings.dart

@@ -2,6 +2,47 @@
 import 'dart:ffi';
 import 'package:ffi/ffi.dart';
 
+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;
 
@@ -24,17 +65,136 @@ final class SherpaOnnxSpeakerEmbeddingExtractorConfig extends Struct {
   external Pointer<Utf8> provider;
 }
 
+final class SherpaOnnxCircularBuffer extends Opaque {}
+
+final class SherpaOnnxVoiceActivityDetector extends Opaque {}
+
 final class SherpaOnnxOnlineStream extends Opaque {}
 
 final class SherpaOnnxSpeakerEmbeddingExtractor extends Opaque {}
 
 final class SherpaOnnxSpeakerEmbeddingManager extends Opaque {}
 
+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 dim);
+    = Pointer<SherpaOnnxSpeakerEmbeddingManager> Function(Int32);
 
 typedef SherpaOnnxCreateSpeakerEmbeddingManager
-    = Pointer<SherpaOnnxSpeakerEmbeddingManager> Function(int dim);
+    = Pointer<SherpaOnnxSpeakerEmbeddingManager> Function(int);
 
 typedef SherpaOnnxDestroySpeakerEmbeddingManagerNative = Void Function(
     Pointer<SherpaOnnxSpeakerEmbeddingManager>);
@@ -190,6 +350,45 @@ typedef SherpaOnnxFreeWaveNative = Void Function(Pointer<SherpaOnnxWave>);
 typedef SherpaOnnxFreeWave = void Function(Pointer<SherpaOnnxWave>);
 
 class SherpaOnnxBindings {
+  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;
 
@@ -252,8 +451,107 @@ class SherpaOnnxBindings {
   static SherpaOnnxFreeWave? freeWave;
 
   static void init(DynamicLibrary dynamicLibrary) {
+    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<SherpaOnnxCreateSpeakerEmbeddingExtractor>>(
+        .lookup<
+                NativeFunction<
+                    SherpaOnnxCreateSpeakerEmbeddingExtractorNative>>(
             'SherpaOnnxCreateSpeakerEmbeddingExtractor')
         .asFunction();