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Add VAD example for Dart API (#996)

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This commit is contained in:
Fangjun Kuang
2024-06-14 10:37:16 +08:00
committed by GitHub
parent c214d8fb74
commit d08cc04567
33 changed files with 883 additions and 142 deletions
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3
sherpa-onnx/flutter/lib/src/offline_recognizer.dart
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@@ -1,7 +1,6 @@
// Copyright (c) 2024 Xiaomi Corporation
import 'dart:convert';
import 'dart:ffi';
import 'dart:typed_data';
import 'package:ffi/ffi.dart';
@@ -262,7 +261,7 @@ class OfflineRecognizer {
final json =
SherpaOnnxBindings.getOfflineStreamResultAsJson?.call(stream.ptr) ??
nullptr;
if (json == null) {
if (json == nullptr) {
return OfflineRecognizerResult(text: '', tokens: [], timestamps: []);
}

2
sherpa-onnx/flutter/lib/src/offline_stream.dart
View File

@@ -28,7 +28,7 @@ class OfflineStream {
final pList = p.asTypedList(n);
pList.setAll(0, samples);
SherpaOnnxBindings.acceptWaveformOffline?.call(this.ptr, sampleRate, p, n);
SherpaOnnxBindings.acceptWaveformOffline?.call(ptr, sampleRate, p, n);
calloc.free(p);
}

3
sherpa-onnx/flutter/lib/src/online_recognizer.dart
View File

@@ -1,7 +1,6 @@
// Copyright (c) 2024 Xiaomi Corporation
import 'dart:convert';
import 'dart:ffi';
import 'dart:typed_data';
import 'package:ffi/ffi.dart';
@@ -247,7 +246,7 @@ class OnlineRecognizer {
final json =
SherpaOnnxBindings.getOnlineStreamResultAsJson?.call(ptr, stream.ptr) ??
nullptr;
if (json == null) {
if (json == nullptr) {
return OnlineRecognizerResult(text: '', tokens: [], timestamps: []);
}

3
sherpa-onnx/flutter/lib/src/online_stream.dart
View File

@@ -28,8 +28,7 @@ class OnlineStream {
final pList = p.asTypedList(n);
pList.setAll(0, samples);
SherpaOnnxBindings.onlineStreamAcceptWaveform
?.call(this.ptr, sampleRate, p, n);
SherpaOnnxBindings.onlineStreamAcceptWaveform?.call(ptr, sampleRate, p, n);
calloc.free(p);
}

7
sherpa-onnx/flutter/lib/src/sherpa_onnx_bindings.dart
View File

@@ -553,13 +553,10 @@ typedef DestroyOnlineStreamNative = Void Function(
typedef DestroyOnlineStream = void Function(Pointer<SherpaOnnxOnlineStream>);
typedef OnlineStreamAcceptWaveformNative = Void Function(
Pointer<SherpaOnnxOnlineStream>,
Int32 sample_rate,
Pointer<Float>,
Int32 n);
Pointer<SherpaOnnxOnlineStream>, Int32, Pointer<Float>, Int32);
typedef OnlineStreamAcceptWaveform = void Function(
Pointer<SherpaOnnxOnlineStream>, int sample_rate, Pointer<Float>, int n);
Pointer<SherpaOnnxOnlineStream>, int, Pointer<Float>, int);
typedef OnlineStreamInputFinishedNative = Void Function(
Pointer<SherpaOnnxOnlineStream>);

20
sherpa-onnx/flutter/lib/src/vad.dart
View File

@@ -106,8 +106,8 @@ class CircularBuffer {
SherpaOnnxBindings.circularBufferReset?.call(this.ptr);
}
int get size => SherpaOnnxBindings.circularBufferSize?.call(this.ptr) ?? 0;
int get head => SherpaOnnxBindings.circularBufferHead?.call(this.ptr) ?? 0;
int get size => SherpaOnnxBindings.circularBufferSize?.call(ptr) ?? 0;
int get head => SherpaOnnxBindings.circularBufferHead?.call(ptr) ?? 0;
Pointer<SherpaOnnxCircularBuffer> ptr;
}
@@ -159,38 +159,36 @@ class VoiceActivityDetector {
final pList = p.asTypedList(n);
pList.setAll(0, samples);
SherpaOnnxBindings.voiceActivityDetectorAcceptWaveform
?.call(this.ptr, p, n);
SherpaOnnxBindings.voiceActivityDetectorAcceptWaveform?.call(ptr, p, n);
calloc.free(p);
}
bool isEmpty() {
final int empty =
SherpaOnnxBindings.voiceActivityDetectorEmpty?.call(this.ptr) ?? 0;
SherpaOnnxBindings.voiceActivityDetectorEmpty?.call(ptr) ?? 0;
return empty == 1;
}
bool isDetected() {
final int detected =
SherpaOnnxBindings.voiceActivityDetectorDetected?.call(this.ptr) ?? 0;
SherpaOnnxBindings.voiceActivityDetectorDetected?.call(ptr) ?? 0;
return detected == 1;
}
void pop() {
SherpaOnnxBindings.voiceActivityDetectorPop?.call(this.ptr);
SherpaOnnxBindings.voiceActivityDetectorPop?.call(ptr);
}
void clear() {
SherpaOnnxBindings.voiceActivityDetectorClear?.call(this.ptr);
SherpaOnnxBindings.voiceActivityDetectorClear?.call(ptr);
}
SpeechSegment front() {
final Pointer<SherpaOnnxSpeechSegment> segment =
SherpaOnnxBindings.voiceActivityDetectorFront?.call(this.ptr) ??
nullptr;
SherpaOnnxBindings.voiceActivityDetectorFront?.call(ptr) ?? nullptr;
if (segment == nullptr) {
return SpeechSegment(samples: Float32List(0), start: 0);
}
@@ -206,7 +204,7 @@ class VoiceActivityDetector {
}
void reset() {
SherpaOnnxBindings.voiceActivityDetectorReset?.call(this.ptr);
SherpaOnnxBindings.voiceActivityDetectorReset?.call(ptr);
}
Pointer<SherpaOnnxVoiceActivityDetector> ptr;