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enginex_bi_series-sherpa-onnx/sherpa-onnx/c-api/cxx-api.cc
Fangjun Kuang 3bf986d08d Support non-streaming zipformer CTC ASR models (#2340)
This PR adds support for non-streaming Zipformer CTC ASR models across 
multiple language bindings, WebAssembly, examples, and CI workflows.

- Introduces a new OfflineZipformerCtcModelConfig in C/C++, Python, Swift, Java, Kotlin, Go, Dart, Pascal, and C# APIs
- Updates initialization, freeing, and recognition logic to include Zipformer CTC in WASM and Node.js
- Adds example scripts and CI steps for downloading, building, and running Zipformer CTC models

Model doc is available at
https://k2-fsa.github.io/sherpa/onnx/pretrained_models/offline-ctc/icefall/zipformer.html
2025-07-04 15:57:07 +08:00

730 lines
24 KiB
C++

// sherpa-onnx/c-api/cxx-api.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/c-api/cxx-api.h"
#include <algorithm>
#include <cstring>
namespace sherpa_onnx::cxx {
Wave ReadWave(const std::string &filename) {
auto p = SherpaOnnxReadWave(filename.c_str());
Wave ans;
if (p) {
ans.samples.resize(p->num_samples);
std::copy(p->samples, p->samples + p->num_samples, ans.samples.data());
ans.sample_rate = p->sample_rate;
SherpaOnnxFreeWave(p);
}
return ans;
}
bool WriteWave(const std::string &filename, const Wave &wave) {
return SherpaOnnxWriteWave(wave.samples.data(), wave.samples.size(),
wave.sample_rate, filename.c_str());
}
OnlineStream::OnlineStream(const SherpaOnnxOnlineStream *p)
: MoveOnly<OnlineStream, SherpaOnnxOnlineStream>(p) {}
void OnlineStream::Destroy(const SherpaOnnxOnlineStream *p) const {
SherpaOnnxDestroyOnlineStream(p);
}
void OnlineStream::AcceptWaveform(int32_t sample_rate, const float *samples,
int32_t n) const {
SherpaOnnxOnlineStreamAcceptWaveform(p_, sample_rate, samples, n);
}
void OnlineStream::InputFinished() const {
SherpaOnnxOnlineStreamInputFinished(p_);
}
OnlineRecognizer OnlineRecognizer::Create(
const OnlineRecognizerConfig &config) {
struct SherpaOnnxOnlineRecognizerConfig c;
memset(&c, 0, sizeof(c));
c.feat_config.sample_rate = config.feat_config.sample_rate;
c.feat_config.feature_dim = config.feat_config.feature_dim;
c.model_config.transducer.encoder =
config.model_config.transducer.encoder.c_str();
c.model_config.transducer.decoder =
config.model_config.transducer.decoder.c_str();
c.model_config.transducer.joiner =
config.model_config.transducer.joiner.c_str();
c.model_config.paraformer.encoder =
config.model_config.paraformer.encoder.c_str();
c.model_config.paraformer.decoder =
config.model_config.paraformer.decoder.c_str();
c.model_config.zipformer2_ctc.model =
config.model_config.zipformer2_ctc.model.c_str();
c.model_config.tokens = config.model_config.tokens.c_str();
c.model_config.num_threads = config.model_config.num_threads;
c.model_config.provider = config.model_config.provider.c_str();
c.model_config.debug = config.model_config.debug;
c.model_config.model_type = config.model_config.model_type.c_str();
c.model_config.modeling_unit = config.model_config.modeling_unit.c_str();
c.model_config.bpe_vocab = config.model_config.bpe_vocab.c_str();
c.model_config.tokens_buf = config.model_config.tokens_buf.c_str();
c.model_config.tokens_buf_size = config.model_config.tokens_buf.size();
c.decoding_method = config.decoding_method.c_str();
c.max_active_paths = config.max_active_paths;
c.enable_endpoint = config.enable_endpoint;
c.rule1_min_trailing_silence = config.rule1_min_trailing_silence;
c.rule2_min_trailing_silence = config.rule2_min_trailing_silence;
c.rule3_min_utterance_length = config.rule3_min_utterance_length;
c.hotwords_file = config.hotwords_file.c_str();
c.hotwords_score = config.hotwords_score;
c.ctc_fst_decoder_config.graph = config.ctc_fst_decoder_config.graph.c_str();
c.ctc_fst_decoder_config.max_active =
config.ctc_fst_decoder_config.max_active;
c.rule_fsts = config.rule_fsts.c_str();
c.rule_fars = config.rule_fars.c_str();
c.blank_penalty = config.blank_penalty;
c.hotwords_buf = config.hotwords_buf.c_str();
c.hotwords_buf_size = config.hotwords_buf.size();
c.hr.dict_dir = config.hr.dict_dir.c_str();
c.hr.lexicon = config.hr.lexicon.c_str();
c.hr.rule_fsts = config.hr.rule_fsts.c_str();
auto p = SherpaOnnxCreateOnlineRecognizer(&c);
return OnlineRecognizer(p);
}
OnlineRecognizer::OnlineRecognizer(const SherpaOnnxOnlineRecognizer *p)
: MoveOnly<OnlineRecognizer, SherpaOnnxOnlineRecognizer>(p) {}
void OnlineRecognizer::Destroy(const SherpaOnnxOnlineRecognizer *p) const {
SherpaOnnxDestroyOnlineRecognizer(p);
}
OnlineStream OnlineRecognizer::CreateStream() const {
auto s = SherpaOnnxCreateOnlineStream(p_);
return OnlineStream{s};
}
OnlineStream OnlineRecognizer::CreateStream(const std::string &hotwords) const {
auto s = SherpaOnnxCreateOnlineStreamWithHotwords(p_, hotwords.c_str());
return OnlineStream{s};
}
bool OnlineRecognizer::IsReady(const OnlineStream *s) const {
return SherpaOnnxIsOnlineStreamReady(p_, s->Get());
}
void OnlineRecognizer::Decode(const OnlineStream *s) const {
SherpaOnnxDecodeOnlineStream(p_, s->Get());
}
void OnlineRecognizer::Reset(const OnlineStream *s) const {
SherpaOnnxOnlineStreamReset(p_, s->Get());
}
bool OnlineRecognizer::IsEndpoint(const OnlineStream *s) const {
return SherpaOnnxOnlineStreamIsEndpoint(p_, s->Get());
}
void OnlineRecognizer::Decode(const OnlineStream *ss, int32_t n) const {
if (n <= 0) {
return;
}
std::vector<const SherpaOnnxOnlineStream *> streams(n);
for (int32_t i = 0; i != n; ++n) {
streams[i] = ss[i].Get();
}
SherpaOnnxDecodeMultipleOnlineStreams(p_, streams.data(), n);
}
OnlineRecognizerResult OnlineRecognizer::GetResult(
const OnlineStream *s) const {
auto r = SherpaOnnxGetOnlineStreamResult(p_, s->Get());
OnlineRecognizerResult ans;
ans.text = r->text;
ans.tokens.resize(r->count);
for (int32_t i = 0; i != r->count; ++i) {
ans.tokens[i] = r->tokens_arr[i];
}
if (r->timestamps) {
ans.timestamps.resize(r->count);
std::copy(r->timestamps, r->timestamps + r->count, ans.timestamps.data());
}
ans.json = r->json;
SherpaOnnxDestroyOnlineRecognizerResult(r);
return ans;
}
// ============================================================================
// Non-streaming ASR
// ============================================================================
OfflineStream::OfflineStream(const SherpaOnnxOfflineStream *p)
: MoveOnly<OfflineStream, SherpaOnnxOfflineStream>(p) {}
void OfflineStream::Destroy(const SherpaOnnxOfflineStream *p) const {
SherpaOnnxDestroyOfflineStream(p);
}
void OfflineStream::AcceptWaveform(int32_t sample_rate, const float *samples,
int32_t n) const {
SherpaOnnxAcceptWaveformOffline(p_, sample_rate, samples, n);
}
OfflineRecognizer OfflineRecognizer::Create(
const OfflineRecognizerConfig &config) {
struct SherpaOnnxOfflineRecognizerConfig c;
memset(&c, 0, sizeof(c));
c.feat_config.sample_rate = config.feat_config.sample_rate;
c.feat_config.feature_dim = config.feat_config.feature_dim;
c.model_config.transducer.encoder =
config.model_config.transducer.encoder.c_str();
c.model_config.transducer.decoder =
config.model_config.transducer.decoder.c_str();
c.model_config.transducer.joiner =
config.model_config.transducer.joiner.c_str();
c.model_config.paraformer.model =
config.model_config.paraformer.model.c_str();
c.model_config.nemo_ctc.model = config.model_config.nemo_ctc.model.c_str();
c.model_config.whisper.encoder = config.model_config.whisper.encoder.c_str();
c.model_config.whisper.decoder = config.model_config.whisper.decoder.c_str();
c.model_config.whisper.language =
config.model_config.whisper.language.c_str();
c.model_config.whisper.task = config.model_config.whisper.task.c_str();
c.model_config.whisper.tail_paddings =
config.model_config.whisper.tail_paddings;
c.model_config.tdnn.model = config.model_config.tdnn.model.c_str();
c.model_config.tokens = config.model_config.tokens.c_str();
c.model_config.num_threads = config.model_config.num_threads;
c.model_config.debug = config.model_config.debug;
c.model_config.provider = config.model_config.provider.c_str();
c.model_config.model_type = config.model_config.model_type.c_str();
c.model_config.modeling_unit = config.model_config.modeling_unit.c_str();
c.model_config.bpe_vocab = config.model_config.bpe_vocab.c_str();
c.model_config.telespeech_ctc = config.model_config.telespeech_ctc.c_str();
c.model_config.sense_voice.model =
config.model_config.sense_voice.model.c_str();
c.model_config.sense_voice.language =
config.model_config.sense_voice.language.c_str();
c.model_config.sense_voice.use_itn = config.model_config.sense_voice.use_itn;
c.model_config.moonshine.preprocessor =
config.model_config.moonshine.preprocessor.c_str();
c.model_config.moonshine.encoder =
config.model_config.moonshine.encoder.c_str();
c.model_config.moonshine.uncached_decoder =
config.model_config.moonshine.uncached_decoder.c_str();
c.model_config.moonshine.cached_decoder =
config.model_config.moonshine.cached_decoder.c_str();
c.model_config.fire_red_asr.encoder =
config.model_config.fire_red_asr.encoder.c_str();
c.model_config.fire_red_asr.decoder =
config.model_config.fire_red_asr.decoder.c_str();
c.model_config.dolphin.model = config.model_config.dolphin.model.c_str();
c.model_config.zipformer_ctc.model =
config.model_config.zipformer_ctc.model.c_str();
c.lm_config.model = config.lm_config.model.c_str();
c.lm_config.scale = config.lm_config.scale;
c.decoding_method = config.decoding_method.c_str();
c.max_active_paths = config.max_active_paths;
c.hotwords_file = config.hotwords_file.c_str();
c.hotwords_score = config.hotwords_score;
c.rule_fsts = config.rule_fsts.c_str();
c.rule_fars = config.rule_fars.c_str();
c.blank_penalty = config.blank_penalty;
c.hr.dict_dir = config.hr.dict_dir.c_str();
c.hr.lexicon = config.hr.lexicon.c_str();
c.hr.rule_fsts = config.hr.rule_fsts.c_str();
auto p = SherpaOnnxCreateOfflineRecognizer(&c);
return OfflineRecognizer(p);
}
OfflineRecognizer::OfflineRecognizer(const SherpaOnnxOfflineRecognizer *p)
: MoveOnly<OfflineRecognizer, SherpaOnnxOfflineRecognizer>(p) {}
void OfflineRecognizer::Destroy(const SherpaOnnxOfflineRecognizer *p) const {
SherpaOnnxDestroyOfflineRecognizer(p_);
}
OfflineStream OfflineRecognizer::CreateStream() const {
auto s = SherpaOnnxCreateOfflineStream(p_);
return OfflineStream{s};
}
OfflineStream OfflineRecognizer::CreateStream(
const std::string &hotwords) const {
auto s = SherpaOnnxCreateOfflineStreamWithHotwords(p_, hotwords.c_str());
return OfflineStream{s};
}
void OfflineRecognizer::Decode(const OfflineStream *s) const {
SherpaOnnxDecodeOfflineStream(p_, s->Get());
}
void OfflineRecognizer::Decode(const OfflineStream *ss, int32_t n) const {
if (n <= 0) {
return;
}
std::vector<const SherpaOnnxOfflineStream *> streams(n);
for (int32_t i = 0; i != n; ++i) {
streams[i] = ss[i].Get();
}
SherpaOnnxDecodeMultipleOfflineStreams(p_, streams.data(), n);
}
OfflineRecognizerResult OfflineRecognizer::GetResult(
const OfflineStream *s) const {
auto r = SherpaOnnxGetOfflineStreamResult(s->Get());
OfflineRecognizerResult ans;
if (r) {
ans.text = r->text;
if (r->timestamps) {
ans.timestamps.resize(r->count);
std::copy(r->timestamps, r->timestamps + r->count, ans.timestamps.data());
}
ans.tokens.resize(r->count);
for (int32_t i = 0; i != r->count; ++i) {
ans.tokens[i] = r->tokens_arr[i];
}
ans.json = r->json;
ans.lang = r->lang ? r->lang : "";
ans.emotion = r->emotion ? r->emotion : "";
ans.event = r->event ? r->event : "";
}
SherpaOnnxDestroyOfflineRecognizerResult(r);
return ans;
}
OfflineTts OfflineTts::Create(const OfflineTtsConfig &config) {
struct SherpaOnnxOfflineTtsConfig c;
memset(&c, 0, sizeof(c));
c.model.vits.model = config.model.vits.model.c_str();
c.model.vits.lexicon = config.model.vits.lexicon.c_str();
c.model.vits.tokens = config.model.vits.tokens.c_str();
c.model.vits.data_dir = config.model.vits.data_dir.c_str();
c.model.vits.noise_scale = config.model.vits.noise_scale;
c.model.vits.noise_scale_w = config.model.vits.noise_scale_w;
c.model.vits.length_scale = config.model.vits.length_scale;
c.model.vits.dict_dir = config.model.vits.dict_dir.c_str();
c.model.matcha.acoustic_model = config.model.matcha.acoustic_model.c_str();
c.model.matcha.vocoder = config.model.matcha.vocoder.c_str();
c.model.matcha.lexicon = config.model.matcha.lexicon.c_str();
c.model.matcha.tokens = config.model.matcha.tokens.c_str();
c.model.matcha.data_dir = config.model.matcha.data_dir.c_str();
c.model.matcha.noise_scale = config.model.matcha.noise_scale;
c.model.matcha.length_scale = config.model.matcha.length_scale;
c.model.matcha.dict_dir = config.model.matcha.dict_dir.c_str();
c.model.kokoro.model = config.model.kokoro.model.c_str();
c.model.kokoro.voices = config.model.kokoro.voices.c_str();
c.model.kokoro.tokens = config.model.kokoro.tokens.c_str();
c.model.kokoro.data_dir = config.model.kokoro.data_dir.c_str();
c.model.kokoro.length_scale = config.model.kokoro.length_scale;
c.model.kokoro.dict_dir = config.model.kokoro.dict_dir.c_str();
c.model.kokoro.lexicon = config.model.kokoro.lexicon.c_str();
c.model.kokoro.lang = config.model.kokoro.lang.c_str();
c.model.num_threads = config.model.num_threads;
c.model.debug = config.model.debug;
c.model.provider = config.model.provider.c_str();
c.rule_fsts = config.rule_fsts.c_str();
c.max_num_sentences = config.max_num_sentences;
c.silence_scale = config.silence_scale;
c.rule_fars = config.rule_fars.c_str();
auto p = SherpaOnnxCreateOfflineTts(&c);
return OfflineTts(p);
}
OfflineTts::OfflineTts(const SherpaOnnxOfflineTts *p)
: MoveOnly<OfflineTts, SherpaOnnxOfflineTts>(p) {}
void OfflineTts::Destroy(const SherpaOnnxOfflineTts *p) const {
SherpaOnnxDestroyOfflineTts(p);
}
int32_t OfflineTts::SampleRate() const {
return SherpaOnnxOfflineTtsSampleRate(p_);
}
int32_t OfflineTts::NumSpeakers() const {
return SherpaOnnxOfflineTtsNumSpeakers(p_);
}
GeneratedAudio OfflineTts::Generate(const std::string &text,
int32_t sid /*= 0*/, float speed /*= 1.0*/,
OfflineTtsCallback callback /*= nullptr*/,
void *arg /*= nullptr*/) const {
const SherpaOnnxGeneratedAudio *audio;
if (!callback) {
audio = SherpaOnnxOfflineTtsGenerate(p_, text.c_str(), sid, speed);
} else {
audio = SherpaOnnxOfflineTtsGenerateWithProgressCallbackWithArg(
p_, text.c_str(), sid, speed, callback, arg);
}
GeneratedAudio ans;
ans.samples = std::vector<float>{audio->samples, audio->samples + audio->n};
ans.sample_rate = audio->sample_rate;
SherpaOnnxDestroyOfflineTtsGeneratedAudio(audio);
return ans;
}
KeywordSpotter KeywordSpotter::Create(const KeywordSpotterConfig &config) {
struct SherpaOnnxKeywordSpotterConfig c;
memset(&c, 0, sizeof(c));
c.feat_config.sample_rate = config.feat_config.sample_rate;
c.model_config.transducer.encoder =
config.model_config.transducer.encoder.c_str();
c.model_config.transducer.decoder =
config.model_config.transducer.decoder.c_str();
c.model_config.transducer.joiner =
config.model_config.transducer.joiner.c_str();
c.feat_config.feature_dim = config.feat_config.feature_dim;
c.model_config.paraformer.encoder =
config.model_config.paraformer.encoder.c_str();
c.model_config.paraformer.decoder =
config.model_config.paraformer.decoder.c_str();
c.model_config.zipformer2_ctc.model =
config.model_config.zipformer2_ctc.model.c_str();
c.model_config.tokens = config.model_config.tokens.c_str();
c.model_config.num_threads = config.model_config.num_threads;
c.model_config.provider = config.model_config.provider.c_str();
c.model_config.debug = config.model_config.debug;
c.model_config.model_type = config.model_config.model_type.c_str();
c.model_config.modeling_unit = config.model_config.modeling_unit.c_str();
c.model_config.bpe_vocab = config.model_config.bpe_vocab.c_str();
c.model_config.tokens_buf = config.model_config.tokens_buf.c_str();
c.model_config.tokens_buf_size = config.model_config.tokens_buf.size();
c.max_active_paths = config.max_active_paths;
c.num_trailing_blanks = config.num_trailing_blanks;
c.keywords_score = config.keywords_score;
c.keywords_threshold = config.keywords_threshold;
c.keywords_file = config.keywords_file.c_str();
auto p = SherpaOnnxCreateKeywordSpotter(&c);
return KeywordSpotter(p);
}
KeywordSpotter::KeywordSpotter(const SherpaOnnxKeywordSpotter *p)
: MoveOnly<KeywordSpotter, SherpaOnnxKeywordSpotter>(p) {}
void KeywordSpotter::Destroy(const SherpaOnnxKeywordSpotter *p) const {
SherpaOnnxDestroyKeywordSpotter(p);
}
OnlineStream KeywordSpotter::CreateStream() const {
auto s = SherpaOnnxCreateKeywordStream(p_);
return OnlineStream{s};
}
OnlineStream KeywordSpotter::CreateStream(const std::string &keywords) const {
auto s = SherpaOnnxCreateKeywordStreamWithKeywords(p_, keywords.c_str());
return OnlineStream{s};
}
bool KeywordSpotter::IsReady(const OnlineStream *s) const {
return SherpaOnnxIsKeywordStreamReady(p_, s->Get());
}
void KeywordSpotter::Decode(const OnlineStream *s) const {
return SherpaOnnxDecodeKeywordStream(p_, s->Get());
}
void KeywordSpotter::Decode(const OnlineStream *ss, int32_t n) const {
if (n <= 0) {
return;
}
std::vector<const SherpaOnnxOnlineStream *> streams(n);
for (int32_t i = 0; i != n; ++n) {
streams[i] = ss[i].Get();
}
SherpaOnnxDecodeMultipleKeywordStreams(p_, streams.data(), n);
}
KeywordResult KeywordSpotter::GetResult(const OnlineStream *s) const {
auto r = SherpaOnnxGetKeywordResult(p_, s->Get());
KeywordResult ans;
ans.keyword = r->keyword;
ans.tokens.resize(r->count);
for (int32_t i = 0; i < r->count; ++i) {
ans.tokens[i] = r->tokens_arr[i];
}
if (r->timestamps) {
ans.timestamps.resize(r->count);
std::copy(r->timestamps, r->timestamps + r->count, ans.timestamps.data());
}
ans.start_time = r->start_time;
ans.json = r->json;
SherpaOnnxDestroyKeywordResult(r);
return ans;
}
void KeywordSpotter::Reset(const OnlineStream *s) const {
SherpaOnnxResetKeywordStream(p_, s->Get());
}
// ============================================================
// For Offline Speech Enhancement
// ============================================================
OfflineSpeechDenoiser OfflineSpeechDenoiser::Create(
const OfflineSpeechDenoiserConfig &config) {
struct SherpaOnnxOfflineSpeechDenoiserConfig c;
memset(&c, 0, sizeof(c));
c.model.gtcrn.model = config.model.gtcrn.model.c_str();
c.model.num_threads = config.model.num_threads;
c.model.provider = config.model.provider.c_str();
c.model.debug = config.model.debug;
auto p = SherpaOnnxCreateOfflineSpeechDenoiser(&c);
return OfflineSpeechDenoiser(p);
}
void OfflineSpeechDenoiser::Destroy(
const SherpaOnnxOfflineSpeechDenoiser *p) const {
SherpaOnnxDestroyOfflineSpeechDenoiser(p);
}
OfflineSpeechDenoiser::OfflineSpeechDenoiser(
const SherpaOnnxOfflineSpeechDenoiser *p)
: MoveOnly<OfflineSpeechDenoiser, SherpaOnnxOfflineSpeechDenoiser>(p) {}
DenoisedAudio OfflineSpeechDenoiser::Run(const float *samples, int32_t n,
int32_t sample_rate) const {
auto audio = SherpaOnnxOfflineSpeechDenoiserRun(p_, samples, n, sample_rate);
DenoisedAudio ans;
ans.samples = {audio->samples, audio->samples + audio->n};
ans.sample_rate = audio->sample_rate;
SherpaOnnxDestroyDenoisedAudio(audio);
return ans;
}
int32_t OfflineSpeechDenoiser::GetSampleRate() const {
return SherpaOnnxOfflineSpeechDenoiserGetSampleRate(p_);
}
CircularBuffer CircularBuffer::Create(int32_t capacity) {
auto p = SherpaOnnxCreateCircularBuffer(capacity);
return CircularBuffer(p);
}
CircularBuffer::CircularBuffer(const SherpaOnnxCircularBuffer *p)
: MoveOnly<CircularBuffer, SherpaOnnxCircularBuffer>(p) {}
void CircularBuffer::Destroy(const SherpaOnnxCircularBuffer *p) const {
SherpaOnnxDestroyCircularBuffer(p);
}
void CircularBuffer::Push(const float *samples, int32_t n) const {
SherpaOnnxCircularBufferPush(p_, samples, n);
}
std::vector<float> CircularBuffer::Get(int32_t start_index, int32_t n) const {
const float *samples = SherpaOnnxCircularBufferGet(p_, start_index, n);
std::vector<float> ans(n);
std::copy(samples, samples + n, ans.begin());
SherpaOnnxCircularBufferFree(samples);
return ans;
}
void CircularBuffer::Pop(int32_t n) const {
SherpaOnnxCircularBufferPop(p_, n);
}
int32_t CircularBuffer::Size() const {
return SherpaOnnxCircularBufferSize(p_);
}
int32_t CircularBuffer::Head() const {
return SherpaOnnxCircularBufferHead(p_);
}
void CircularBuffer::Reset() const { SherpaOnnxCircularBufferReset(p_); }
VoiceActivityDetector VoiceActivityDetector::Create(
const VadModelConfig &config, float buffer_size_in_seconds) {
struct SherpaOnnxVadModelConfig c;
memset(&c, 0, sizeof(c));
c.silero_vad.model = config.silero_vad.model.c_str();
c.silero_vad.threshold = config.silero_vad.threshold;
c.silero_vad.min_silence_duration = config.silero_vad.min_silence_duration;
c.silero_vad.min_speech_duration = config.silero_vad.min_speech_duration;
c.silero_vad.window_size = config.silero_vad.window_size;
c.silero_vad.max_speech_duration = config.silero_vad.max_speech_duration;
c.sample_rate = config.sample_rate;
c.num_threads = config.num_threads;
c.provider = config.provider.c_str();
c.debug = config.debug;
auto p = SherpaOnnxCreateVoiceActivityDetector(&c, buffer_size_in_seconds);
return VoiceActivityDetector(p);
}
VoiceActivityDetector::VoiceActivityDetector(
const SherpaOnnxVoiceActivityDetector *p)
: MoveOnly<VoiceActivityDetector, SherpaOnnxVoiceActivityDetector>(p) {}
void VoiceActivityDetector::Destroy(
const SherpaOnnxVoiceActivityDetector *p) const {
SherpaOnnxDestroyVoiceActivityDetector(p);
}
void VoiceActivityDetector::AcceptWaveform(const float *samples,
int32_t n) const {
SherpaOnnxVoiceActivityDetectorAcceptWaveform(p_, samples, n);
}
bool VoiceActivityDetector::IsEmpty() const {
return SherpaOnnxVoiceActivityDetectorEmpty(p_);
}
bool VoiceActivityDetector ::IsDetected() const {
return SherpaOnnxVoiceActivityDetectorDetected(p_);
}
void VoiceActivityDetector::Pop() const {
SherpaOnnxVoiceActivityDetectorPop(p_);
}
void VoiceActivityDetector::Clear() const {
SherpaOnnxVoiceActivityDetectorClear(p_);
}
SpeechSegment VoiceActivityDetector::Front() const {
auto f = SherpaOnnxVoiceActivityDetectorFront(p_);
SpeechSegment segment;
segment.start = f->start;
segment.samples = std::vector<float>{f->samples, f->samples + f->n};
SherpaOnnxDestroySpeechSegment(f);
return segment;
}
void VoiceActivityDetector::Reset() const {
SherpaOnnxVoiceActivityDetectorReset(p_);
}
void VoiceActivityDetector::Flush() const {
SherpaOnnxVoiceActivityDetectorFlush(p_);
}
LinearResampler LinearResampler::Create(int32_t samp_rate_in_hz,
int32_t samp_rate_out_hz,
float filter_cutoff_hz,
int32_t num_zeros) {
auto p = SherpaOnnxCreateLinearResampler(samp_rate_in_hz, samp_rate_out_hz,
filter_cutoff_hz, num_zeros);
return LinearResampler(p);
}
LinearResampler::LinearResampler(const SherpaOnnxLinearResampler *p)
: MoveOnly<LinearResampler, SherpaOnnxLinearResampler>(p) {}
void LinearResampler::Destroy(const SherpaOnnxLinearResampler *p) const {
SherpaOnnxDestroyLinearResampler(p);
}
void LinearResampler::Reset() const { SherpaOnnxLinearResamplerReset(p_); }
std::vector<float> LinearResampler::Resample(const float *input,
int32_t input_dim,
bool flush) const {
auto out = SherpaOnnxLinearResamplerResample(p_, input, input_dim, flush);
std::vector<float> ans{out->samples, out->samples + out->n};
SherpaOnnxLinearResamplerResampleFree(out);
return ans;
}
int32_t LinearResampler::GetInputSamplingRate() const {
return SherpaOnnxLinearResamplerResampleGetInputSampleRate(p_);
}
int32_t LinearResampler::GetOutputSamplingRate() const {
return SherpaOnnxLinearResamplerResampleGetOutputSampleRate(p_);
}
std::string GetVersionStr() { return SherpaOnnxGetVersionStr(); }
std::string GetGitSha1() { return SherpaOnnxGetGitSha1(); }
std::string GetGitDate() { return SherpaOnnxGetGitDate(); }
} // namespace sherpa_onnx::cxx