| | |
| | | |
| | | using namespace std; |
| | | |
| | | namespace funasr { |
| | | // see http://soundfile.sapp.org/doc/WaveFormat/ |
| | | // Note: We assume little endian here |
| | | struct WaveHeader { |
| | |
| | | start = 0; |
| | | }; |
| | | AudioFrame::~AudioFrame(){}; |
| | | int AudioFrame::set_start(int val) |
| | | int AudioFrame::SetStart(int val) |
| | | { |
| | | start = val < 0 ? 0 : val; |
| | | return start; |
| | | }; |
| | | |
| | | int AudioFrame::set_end(int val) |
| | | int AudioFrame::SetEnd(int val) |
| | | { |
| | | end = val; |
| | | len = end - start; |
| | | return end; |
| | | }; |
| | | |
| | | int AudioFrame::get_start() |
| | | int AudioFrame::GetStart() |
| | | { |
| | | return start; |
| | | }; |
| | | |
| | | int AudioFrame::get_len() |
| | | int AudioFrame::GetLen() |
| | | { |
| | | return len; |
| | | }; |
| | | |
| | | int AudioFrame::disp() |
| | | int AudioFrame::Disp() |
| | | { |
| | | printf("not imp!!!!\n"); |
| | | |
| | | LOG(ERROR) << "Not imp!!!!"; |
| | | return 0; |
| | | }; |
| | | |
| | |
| | | } |
| | | } |
| | | |
| | | void Audio::disp() |
| | | void Audio::Disp() |
| | | { |
| | | printf("Audio time is %f s. len is %d\n", (float)speech_len / MODEL_SAMPLE_RATE, |
| | | speech_len); |
| | | LOG(INFO) << "Audio time is " << (float)speech_len / MODEL_SAMPLE_RATE << " s. len is " << speech_len; |
| | | } |
| | | |
| | | float Audio::get_time_len() |
| | | float Audio::GetTimeLen() |
| | | { |
| | | return (float)speech_len / MODEL_SAMPLE_RATE; |
| | | } |
| | | |
| | | void Audio::wavResample(int32_t sampling_rate, const float *waveform, |
| | | void Audio::WavResample(int32_t sampling_rate, const float *waveform, |
| | | int32_t n) |
| | | { |
| | | printf( |
| | | "Creating a resampler:\n" |
| | | " in_sample_rate: %d\n" |
| | | " output_sample_rate: %d\n", |
| | | sampling_rate, static_cast<int32_t>(MODEL_SAMPLE_RATE)); |
| | | LOG(INFO) << "Creating a resampler:\n" |
| | | << " in_sample_rate: "<< sampling_rate << "\n" |
| | | << " output_sample_rate: " << static_cast<int32_t>(MODEL_SAMPLE_RATE); |
| | | float min_freq = |
| | | std::min<int32_t>(sampling_rate, MODEL_SAMPLE_RATE); |
| | | float lowpass_cutoff = 0.99 * 0.5 * min_freq; |
| | | |
| | | int32_t lowpass_filter_width = 6; |
| | | //FIXME |
| | | //auto resampler = new LinearResample( |
| | | // sampling_rate, model_sample_rate, lowpass_cutoff, lowpass_filter_width); |
| | | |
| | | auto resampler = std::make_unique<LinearResample>( |
| | | sampling_rate, MODEL_SAMPLE_RATE, lowpass_cutoff, lowpass_filter_width); |
| | | std::vector<float> samples; |
| | |
| | | copy(samples.begin(), samples.end(), speech_data); |
| | | } |
| | | |
| | | bool Audio::loadwav(const char *filename, int32_t* sampling_rate) |
| | | bool Audio::LoadWav(const char *filename, int32_t* sampling_rate) |
| | | { |
| | | WaveHeader header; |
| | | if (speech_data != NULL) { |
| | |
| | | std::ifstream is(filename, std::ifstream::binary); |
| | | is.read(reinterpret_cast<char *>(&header), sizeof(header)); |
| | | if(!is){ |
| | | fprintf(stderr, "Failed to read %s\n", filename); |
| | | LOG(ERROR) << "Failed to read " << filename; |
| | | return false; |
| | | } |
| | | |
| | | if (!header.Validate()) { |
| | | return false; |
| | | } |
| | | |
| | | header.SeekToDataChunk(is); |
| | | if (!is) { |
| | | return false; |
| | | } |
| | | |
| | | if (!header.Validate()) { |
| | | return false; |
| | | } |
| | | |
| | | header.SeekToDataChunk(is); |
| | | if (!is) { |
| | | return false; |
| | | } |
| | | |
| | |
| | | memset(speech_buff, 0, sizeof(int16_t) * speech_len); |
| | | is.read(reinterpret_cast<char *>(speech_buff), header.subchunk2_size); |
| | | if (!is) { |
| | | fprintf(stderr, "Failed to read %s\n", filename); |
| | | LOG(ERROR) << "Failed to read " << filename; |
| | | return false; |
| | | } |
| | | speech_data = (float*)malloc(sizeof(float) * speech_len); |
| | |
| | | |
| | | //resample |
| | | if(*sampling_rate != MODEL_SAMPLE_RATE){ |
| | | wavResample(*sampling_rate, speech_data, speech_len); |
| | | WavResample(*sampling_rate, speech_data, speech_len); |
| | | } |
| | | |
| | | AudioFrame* frame = new AudioFrame(speech_len); |
| | |
| | | return false; |
| | | } |
| | | |
| | | bool Audio::loadwav(const char* buf, int nFileLen, int32_t* sampling_rate) |
| | | bool Audio::LoadWav(const char* buf, int n_file_len, int32_t* sampling_rate) |
| | | { |
| | | WaveHeader header; |
| | | if (speech_data != NULL) { |
| | |
| | | |
| | | //resample |
| | | if(*sampling_rate != MODEL_SAMPLE_RATE){ |
| | | wavResample(*sampling_rate, speech_data, speech_len); |
| | | WavResample(*sampling_rate, speech_data, speech_len); |
| | | } |
| | | |
| | | AudioFrame* frame = new AudioFrame(speech_len); |
| | |
| | | return false; |
| | | } |
| | | |
| | | bool Audio::loadpcmwav(const char* buf, int nBufLen, int32_t* sampling_rate) |
| | | bool Audio::LoadPcmwav(const char* buf, int n_buf_len, int32_t* sampling_rate) |
| | | { |
| | | if (speech_data != NULL) { |
| | | free(speech_data); |
| | |
| | | } |
| | | offset = 0; |
| | | |
| | | speech_len = nBufLen / 2; |
| | | speech_len = n_buf_len / 2; |
| | | speech_buff = (int16_t*)malloc(sizeof(int16_t) * speech_len); |
| | | if (speech_buff) |
| | | { |
| | |
| | | |
| | | //resample |
| | | if(*sampling_rate != MODEL_SAMPLE_RATE){ |
| | | wavResample(*sampling_rate, speech_data, speech_len); |
| | | WavResample(*sampling_rate, speech_data, speech_len); |
| | | } |
| | | |
| | | AudioFrame* frame = new AudioFrame(speech_len); |
| | |
| | | return false; |
| | | } |
| | | |
| | | bool Audio::loadpcmwav(const char* filename, int32_t* sampling_rate) |
| | | bool Audio::LoadPcmwav(const char* filename, int32_t* sampling_rate) |
| | | { |
| | | if (speech_data != NULL) { |
| | | free(speech_data); |
| | |
| | | FILE* fp; |
| | | fp = fopen(filename, "rb"); |
| | | if (fp == nullptr) |
| | | { |
| | | LOG(ERROR) << "Failed to read " << filename; |
| | | return false; |
| | | } |
| | | fseek(fp, 0, SEEK_END); |
| | | uint32_t nFileLen = ftell(fp); |
| | | uint32_t n_file_len = ftell(fp); |
| | | fseek(fp, 0, SEEK_SET); |
| | | |
| | | speech_len = (nFileLen) / 2; |
| | | speech_len = (n_file_len) / 2; |
| | | speech_buff = (int16_t*)malloc(sizeof(int16_t) * speech_len); |
| | | if (speech_buff) |
| | | { |
| | |
| | | |
| | | //resample |
| | | if(*sampling_rate != MODEL_SAMPLE_RATE){ |
| | | wavResample(*sampling_rate, speech_data, speech_len); |
| | | WavResample(*sampling_rate, speech_data, speech_len); |
| | | } |
| | | |
| | | AudioFrame* frame = new AudioFrame(speech_len); |
| | |
| | | |
| | | } |
| | | |
| | | int Audio::fetch_chunck(float *&dout, int len) |
| | | int Audio::FetchChunck(float *&dout, int len) |
| | | { |
| | | if (offset >= speech_align_len) { |
| | | dout = NULL; |
| | |
| | | } |
| | | } |
| | | |
| | | int Audio::fetch(float *&dout, int &len, int &flag) |
| | | int Audio::Fetch(float *&dout, int &len, int &flag) |
| | | { |
| | | if (frame_queue.size() > 0) { |
| | | AudioFrame *frame = frame_queue.front(); |
| | | frame_queue.pop(); |
| | | |
| | | dout = speech_data + frame->get_start(); |
| | | len = frame->get_len(); |
| | | dout = speech_data + frame->GetStart(); |
| | | len = frame->GetLen(); |
| | | delete frame; |
| | | flag = S_END; |
| | | return 1; |
| | |
| | | } |
| | | } |
| | | |
| | | void Audio::padding() |
| | | void Audio::Padding() |
| | | { |
| | | float num_samples = speech_len; |
| | | float frame_length = 400; |
| | |
| | | delete frame; |
| | | } |
| | | |
| | | void Audio::split(Model* pRecogObj) |
| | | void Audio::Split(OfflineStream* offline_stream) |
| | | { |
| | | AudioFrame *frame; |
| | | |
| | | frame = frame_queue.front(); |
| | | frame_queue.pop(); |
| | | int sp_len = frame->get_len(); |
| | | int sp_len = frame->GetLen(); |
| | | delete frame; |
| | | frame = NULL; |
| | | |
| | | std::vector<float> pcm_data(speech_data, speech_data+sp_len); |
| | | vector<std::vector<int>> vad_segments = pRecogObj->vad_seg(pcm_data); |
| | | vector<std::vector<int>> vad_segments = (offline_stream->vad_handle)->Infer(pcm_data); |
| | | int seg_sample = MODEL_SAMPLE_RATE/1000; |
| | | for(vector<int> segment:vad_segments) |
| | | { |
| | | frame = new AudioFrame(); |
| | | int start = segment[0]*seg_sample; |
| | | int end = segment[1]*seg_sample; |
| | | frame->set_start(start); |
| | | frame->set_end(end); |
| | | frame->SetStart(start); |
| | | frame->SetEnd(end); |
| | | frame_queue.push(frame); |
| | | frame = NULL; |
| | | } |
| | | } |
| | | |
| | | |
| | | void Audio::Split(VadModel* vad_obj, vector<std::vector<int>>& vad_segments) |
| | | { |
| | | AudioFrame *frame; |
| | | |
| | | frame = frame_queue.front(); |
| | | frame_queue.pop(); |
| | | int sp_len = frame->GetLen(); |
| | | delete frame; |
| | | frame = NULL; |
| | | |
| | | std::vector<float> pcm_data(speech_data, speech_data+sp_len); |
| | | vad_segments = vad_obj->Infer(pcm_data); |
| | | } |
| | | |
| | | } // namespace funasr |