mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2025-06-14 04:58:06 +00:00
examples : use miniaudio for direct decoding flac, mp3, ogg and wav (#2759)
This commit is contained in:
Dmitry Atamanov
GitHub
@ -4,8 +4,17 @@
|
||||
|
||||
// third-party utilities
|
||||
// use your favorite implementations
|
||||
#define DR_WAV_IMPLEMENTATION
|
||||
#include "dr_wav.h"
|
||||
#define STB_VORBIS_HEADER_ONLY
|
||||
#include "stb_vorbis.c" /* Enables Vorbis decoding. */
|
||||
|
||||
#define MA_NO_DEVICE_IO
|
||||
#define MA_NO_THREADING
|
||||
#define MA_NO_ENCODING
|
||||
#define MA_NO_GENERATION
|
||||
#define MA_NO_RESOURCE_MANAGER
|
||||
#define MA_NO_NODE_GRAPH
|
||||
#define MINIAUDIO_IMPLEMENTATION
|
||||
#include "miniaudio.h"
|
||||
|
||||
#include <cmath>
|
||||
#include <cstring>
|
||||
@ -639,111 +648,95 @@ bool is_wav_buffer(const std::string buf) {
|
||||
return true;
|
||||
}
|
||||
|
||||
bool read_wav(const std::string & fname, std::vector<float>& pcmf32, std::vector<std::vector<float>>& pcmf32s, bool stereo) {
|
||||
drwav wav;
|
||||
std::vector<uint8_t> wav_data; // used for pipe input from stdin or ffmpeg decoding output
|
||||
bool read_audio_data(const std::string & fname, std::vector<float>& pcmf32, std::vector<std::vector<float>>& pcmf32s, bool stereo) {
|
||||
std::vector<uint8_t> audio_data; // used for pipe input from stdin or ffmpeg decoding output
|
||||
|
||||
ma_result result;
|
||||
ma_decoder_config decoder_config;
|
||||
ma_decoder decoder;
|
||||
|
||||
decoder_config = ma_decoder_config_init(ma_format_f32, stereo ? 2 : 1, COMMON_SAMPLE_RATE);
|
||||
|
||||
if (fname == "-") {
|
||||
{
|
||||
#ifdef _WIN32
|
||||
_setmode(_fileno(stdin), _O_BINARY);
|
||||
#endif
|
||||
#ifdef _WIN32
|
||||
_setmode(_fileno(stdin), _O_BINARY);
|
||||
#endif
|
||||
|
||||
uint8_t buf[1024];
|
||||
while (true)
|
||||
{
|
||||
const size_t n = fread(buf, 1, sizeof(buf), stdin);
|
||||
if (n == 0) {
|
||||
break;
|
||||
}
|
||||
wav_data.insert(wav_data.end(), buf, buf + n);
|
||||
}
|
||||
}
|
||||
uint8_t buf[1024];
|
||||
while (true)
|
||||
{
|
||||
const size_t n = fread(buf, 1, sizeof(buf), stdin);
|
||||
if (n == 0) {
|
||||
break;
|
||||
}
|
||||
audio_data.insert(audio_data.end(), buf, buf + n);
|
||||
}
|
||||
|
||||
if (drwav_init_memory(&wav, wav_data.data(), wav_data.size(), nullptr) == false) {
|
||||
fprintf(stderr, "error: failed to open WAV file from stdin\n");
|
||||
return false;
|
||||
}
|
||||
if ((result = ma_decoder_init_memory(audio_data.data(), audio_data.size(), &decoder_config, &decoder)) != MA_SUCCESS) {
|
||||
|
||||
fprintf(stderr, "%s: read %zu bytes from stdin\n", __func__, wav_data.size());
|
||||
fprintf(stderr, "Error: failed to open audio data from stdin (%s)\n", ma_result_description(result));
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
fprintf(stderr, "%s: read %zu bytes from stdin\n", __func__, audio_data.size());
|
||||
}
|
||||
else if (is_wav_buffer(fname)) {
|
||||
if (drwav_init_memory(&wav, fname.c_str(), fname.size(), nullptr) == false) {
|
||||
fprintf(stderr, "error: failed to open WAV file from fname buffer\n");
|
||||
return false;
|
||||
}
|
||||
if ((result = ma_decoder_init_memory(audio_data.data(), audio_data.size(), &decoder_config, &decoder)) != MA_SUCCESS) {
|
||||
fprintf(stderr, "Error: failed to open audio data from fname buffer (%s)\n", ma_result_description(result));
|
||||
|
||||
return false;
|
||||
}
|
||||
}
|
||||
else if (drwav_init_file(&wav, fname.c_str(), nullptr) == false) {
|
||||
else if ((result = ma_decoder_init_file(fname.c_str(), &decoder_config, &decoder)) != MA_SUCCESS) {
|
||||
#if defined(WHISPER_FFMPEG)
|
||||
if (ffmpeg_decode_audio(fname, wav_data) != 0) {
|
||||
fprintf(stderr, "error: failed to ffmpeg decode '%s' \n", fname.c_str());
|
||||
return false;
|
||||
}
|
||||
if (drwav_init_memory(&wav, wav_data.data(), wav_data.size(), nullptr) == false) {
|
||||
fprintf(stderr, "error: failed to read wav data as wav \n");
|
||||
return false;
|
||||
}
|
||||
if (ffmpeg_decode_audio(fname, audio_data) != 0) {
|
||||
fprintf(stderr, "error: failed to ffmpeg decode '%s'\n", fname.c_str());
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
if ((result = ma_decoder_init_memory(audio_data.data(), audio_data.size(), &decoder_config, &decoder)) != MA_SUCCESS) {
|
||||
fprintf(stderr, "error: failed to read audio data as wav (%s)\n", ma_result_description(result));
|
||||
|
||||
return false;
|
||||
}
|
||||
#else
|
||||
fprintf(stderr, "error: failed to open '%s' as WAV file\n", fname.c_str());
|
||||
return false;
|
||||
fprintf(stderr, "error: failed to open '%s' file (%s)\n", fname.c_str(), ma_result_description(result));
|
||||
|
||||
return false;
|
||||
#endif
|
||||
}
|
||||
|
||||
if (wav.channels != 1 && wav.channels != 2) {
|
||||
fprintf(stderr, "%s: WAV file '%s' must be mono or stereo\n", __func__, fname.c_str());
|
||||
drwav_uninit(&wav);
|
||||
return false;
|
||||
ma_uint64 frame_count;
|
||||
ma_uint64 frames_read;
|
||||
|
||||
if ((result = ma_decoder_get_length_in_pcm_frames(&decoder, &frame_count)) != MA_SUCCESS) {
|
||||
fprintf(stderr, "error: failed to retrieve the length of the audio data (%s)\n", ma_result_description(result));
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
if (stereo && wav.channels != 2) {
|
||||
fprintf(stderr, "%s: WAV file '%s' must be stereo for diarization\n", __func__, fname.c_str());
|
||||
drwav_uninit(&wav);
|
||||
return false;
|
||||
}
|
||||
pcmf32.resize(stereo ? frame_count*2 : frame_count);
|
||||
|
||||
if (wav.sampleRate != COMMON_SAMPLE_RATE) {
|
||||
fprintf(stderr, "%s: WAV file '%s' must be %i kHz\n", __func__, fname.c_str(), COMMON_SAMPLE_RATE/1000);
|
||||
drwav_uninit(&wav);
|
||||
return false;
|
||||
}
|
||||
if ((result = ma_decoder_read_pcm_frames(&decoder, pcmf32.data(), frame_count, &frames_read)) != MA_SUCCESS) {
|
||||
fprintf(stderr, "error: failed to read the frames of the audio data (%s)\n", ma_result_description(result));
|
||||
|
||||
if (wav.bitsPerSample != 16) {
|
||||
fprintf(stderr, "%s: WAV file '%s' must be 16-bit\n", __func__, fname.c_str());
|
||||
drwav_uninit(&wav);
|
||||
return false;
|
||||
}
|
||||
|
||||
const uint64_t n = wav_data.empty() ? wav.totalPCMFrameCount : wav_data.size()/(wav.channels*wav.bitsPerSample/8);
|
||||
|
||||
std::vector<int16_t> pcm16;
|
||||
pcm16.resize(n*wav.channels);
|
||||
drwav_read_pcm_frames_s16(&wav, n, pcm16.data());
|
||||
drwav_uninit(&wav);
|
||||
|
||||
// convert to mono, float
|
||||
pcmf32.resize(n);
|
||||
if (wav.channels == 1) {
|
||||
for (uint64_t i = 0; i < n; i++) {
|
||||
pcmf32[i] = float(pcm16[i])/32768.0f;
|
||||
}
|
||||
} else {
|
||||
for (uint64_t i = 0; i < n; i++) {
|
||||
pcmf32[i] = float(pcm16[2*i] + pcm16[2*i + 1])/65536.0f;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
if (stereo) {
|
||||
// convert to stereo, float
|
||||
pcmf32s.resize(2);
|
||||
|
||||
pcmf32s[0].resize(n);
|
||||
pcmf32s[1].resize(n);
|
||||
for (uint64_t i = 0; i < n; i++) {
|
||||
pcmf32s[0][i] = float(pcm16[2*i])/32768.0f;
|
||||
pcmf32s[1][i] = float(pcm16[2*i + 1])/32768.0f;
|
||||
}
|
||||
pcmf32s.resize(2);
|
||||
pcmf32s[0].resize(frame_count);
|
||||
pcmf32s[1].resize(frame_count);
|
||||
for (uint64_t i = 0; i < frame_count; i++) {
|
||||
pcmf32s[0][i] = pcmf32[2*i];
|
||||
pcmf32s[1][i] = pcmf32[2*i + 1];
|
||||
}
|
||||
}
|
||||
|
||||
ma_decoder_uninit(&decoder);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -909,3 +902,6 @@ bool speak_with_file(const std::string & command, const std::string & text, cons
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
#undef STB_VORBIS_HEADER_ONLY
|
||||
#include "stb_vorbis.c"
|
||||
|
||||
Reference in New Issue
Block a user