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common : separate whisper sources (whisper/2846)
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* common : separate whisper sources

* examples : add chrono

* examples : add more headers
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@ggerganov
ggerganov committed Feb 27, 2025
1 parent a96038a commit 9d7ee68
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212 changes: 2 additions & 210 deletions examples/common.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2,26 +2,6 @@

#include "common.h"

// third-party utilities
// use your favorite implementations
#define STB_VORBIS_HEADER_ONLY
#include "stb_vorbis.c" /* Enables Vorbis decoding. */

#ifdef _WIN32
#ifndef NOMINMAX
#define NOMINMAX
#endif
#endif

#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 <codecvt>
#include <cstring>
Expand All @@ -34,16 +14,6 @@
#pragma warning(disable: 4244 4267) // possible loss of data
#endif

#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#endif

#ifdef WHISPER_FFMPEG
// as implemented in ffmpeg_trancode.cpp only embedded in common lib if whisper built with ffmpeg support
extern bool ffmpeg_decode_audio(const std::string & ifname, std::vector<uint8_t> & wav_data);
#endif

// Function to check if the next argument exists
static std::string get_next_arg(int& i, int argc, char** argv, const std::string& flag, gpt_params& params) {
if (i + 1 < argc && argv[i + 1][0] != '-') {
Expand Down Expand Up @@ -654,98 +624,6 @@ bool is_wav_buffer(const std::string buf) {
return true;
}

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

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 ((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 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 ((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 ((result = ma_decoder_init_file(fname.c_str(), &decoder_config, &decoder)) != MA_SUCCESS) {
#if defined(WHISPER_FFMPEG)
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' file (%s)\n", fname.c_str(), ma_result_description(result));

return false;
#endif
}

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;
}

pcmf32.resize(stereo ? frame_count*2 : frame_count);

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));

return false;
}

if (stereo) {
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;
}

void high_pass_filter(std::vector<float> & data, float cutoff, float sample_rate) {
const float rc = 1.0f / (2.0f * M_PI * cutoff);
const float dt = 1.0f / sample_rate;
Expand Down Expand Up @@ -821,93 +699,7 @@ float similarity(const std::string & s0, const std::string & s1) {
return 1.0f - (dist / std::max(s0.size(), s1.size()));
}

bool sam_params_parse(int argc, char ** argv, sam_params & params) {
for (int i = 1; i < argc; i++) {
std::string arg = argv[i];

if (arg == "-s" || arg == "--seed") {
params.seed = std::stoi(argv[++i]);
} else if (arg == "-t" || arg == "--threads") {
params.n_threads = std::stoi(argv[++i]);
} else if (arg == "-m" || arg == "--model") {
params.model = argv[++i];
} else if (arg == "-i" || arg == "--inp") {
params.fname_inp = argv[++i];
} else if (arg == "-o" || arg == "--out") {
params.fname_out = argv[++i];
} else if (arg == "-h" || arg == "--help") {
sam_print_usage(argc, argv, params);
exit(0);
} else {
fprintf(stderr, "error: unknown argument: %s\n", arg.c_str());
sam_print_usage(argc, argv, params);
exit(0);
}
}

return true;
}

void sam_print_usage(int /*argc*/, char ** argv, const sam_params & params) {
fprintf(stderr, "usage: %s [options]\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, "options:\n");
fprintf(stderr, " -h, --help show this help message and exit\n");
fprintf(stderr, " -s SEED, --seed SEED RNG seed (default: -1)\n");
fprintf(stderr, " -t N, --threads N number of threads to use during computation (default: %d)\n", params.n_threads);
fprintf(stderr, " -m FNAME, --model FNAME\n");
fprintf(stderr, " model path (default: %s)\n", params.model.c_str());
fprintf(stderr, " -i FNAME, --inp FNAME\n");
fprintf(stderr, " input file (default: %s)\n", params.fname_inp.c_str());
fprintf(stderr, " -o FNAME, --out FNAME\n");
fprintf(stderr, " output file (default: %s)\n", params.fname_out.c_str());
fprintf(stderr, "\n");
}

// 500 -> 00:05.000
// 6000 -> 01:00.000
std::string to_timestamp(int64_t t, bool comma) {
int64_t msec = t * 10;
int64_t hr = msec / (1000 * 60 * 60);
msec = msec - hr * (1000 * 60 * 60);
int64_t min = msec / (1000 * 60);
msec = msec - min * (1000 * 60);
int64_t sec = msec / 1000;
msec = msec - sec * 1000;

char buf[32];
snprintf(buf, sizeof(buf), "%02d:%02d:%02d%s%03d", (int) hr, (int) min, (int) sec, comma ? "," : ".", (int) msec);

return std::string(buf);
}

int timestamp_to_sample(int64_t t, int n_samples, int whisper_sample_rate) {
return std::max(0, std::min((int) n_samples - 1, (int) ((t*whisper_sample_rate)/100)));
}

bool is_file_exist(const char *fileName)
{
std::ifstream infile(fileName);
bool is_file_exist(const char * filename) {
std::ifstream infile(filename);
return infile.good();
}

bool speak_with_file(const std::string & command, const std::string & text, const std::string & path, int voice_id)
{
std::ofstream speak_file(path.c_str());
if (speak_file.fail()) {
fprintf(stderr, "%s: failed to open speak_file\n", __func__);
return false;
} else {
speak_file.write(text.c_str(), text.size());
speak_file.close();
int ret = system((command + " " + std::to_string(voice_id) + " " + path).c_str());
if (ret != 0) {
fprintf(stderr, "%s: failed to speak\n", __func__);
return false;
}
}
return true;
}

#undef STB_VORBIS_HEADER_ONLY
#include "stb_vorbis.c"
40 changes: 1 addition & 39 deletions examples/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,6 @@
#include <fstream>
#include <sstream>

#define COMMON_SAMPLE_RATE 16000

//
// GPT CLI argument parsing
//
Expand Down Expand Up @@ -139,16 +137,6 @@ gpt_vocab::id gpt_sample_top_k_top_p_repeat(
// Check if a buffer is a WAV audio file
bool is_wav_buffer(const std::string buf);

// Read WAV audio file and store the PCM data into pcmf32
// fname can be a buffer of WAV data instead of a filename
// The sample rate of the audio must be equal to COMMON_SAMPLE_RATE
// If stereo flag is set and the audio has 2 channels, the pcmf32s will contain 2 channel PCM
bool read_audio_data(
const std::string & fname,
std::vector<float> & pcmf32,
std::vector<std::vector<float>> & pcmf32s,
bool stereo);

// Write PCM data into WAV audio file
class wav_writer {
private:
Expand Down Expand Up @@ -266,23 +254,6 @@ bool vad_simple(
// compute similarity between two strings using Levenshtein distance
float similarity(const std::string & s0, const std::string & s1);

//
// SAM argument parsing
//

struct sam_params {
int32_t seed = -1; // RNG seed
int32_t n_threads = std::min(4, (int32_t) std::thread::hardware_concurrency());

std::string model = "models/sam-vit-b/ggml-model-f16.bin"; // model path
std::string fname_inp = "img.jpg";
std::string fname_out = "img.out";
};

bool sam_params_parse(int argc, char ** argv, sam_params & params);

void sam_print_usage(int argc, char ** argv, const sam_params & params);

//
// Terminal utils
//
Expand Down Expand Up @@ -330,14 +301,5 @@ const std::vector<std::string> k_colors = {
// Other utils
//

// convert timestamp to string, 6000 -> 01:00.000
std::string to_timestamp(int64_t t, bool comma = false);

// given a timestamp get the sample
int timestamp_to_sample(int64_t t, int n_samples, int whisper_sample_rate);

// check if file exists using ifstream
bool is_file_exist(const char *fileName);

// write text to file, and call system("command voice_id file")
bool speak_with_file(const std::string & command, const std::string & text, const std::string & path, int voice_id);
bool is_file_exist(const char * filename);

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