ExternalVendorCode/whisper.cpp
1
0
Fork 0
mirror of https://github.com/ggerganov/whisper.cpp.git synced 2025-06-13 12:38:08 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Node.js package (#260)

Browse Source 
* npm : preparing infra for node package

* npm : package infra ready

* npm : initial version ready

* npm : change name to whisper.cpp

whisper.js is taken
This commit is contained in:
Georgi Gerganov
2022-12-12 20:17:27 +02:00
committed by GitHub
parent aa6adda26e
commit f309f97df6
15 changed files with 373 additions and 67 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
bindings/javascript/emscripten.cpp
View File

@ -1,63 +1,48 @@
//
// This is the Javascript API of whisper.cpp
//
// Very crude at the moment.
// Feel free to contribute and make this better!
//
// See the tests/test-whisper.js for sample usage
//
#include "whisper.h"
#include <emscripten.h>
#include <emscripten/bind.h>
#include <vector>
#include <thread>
#include <vector>
std::thread g_worker;
std::vector<struct whisper_context *> g_contexts(4, nullptr);
struct whisper_context * g_context;
EMSCRIPTEN_BINDINGS(whisper) {
emscripten::function("init", emscripten::optional_override([](const std::string & path_model) {
if (g_worker.joinable()) {
g_worker.join();
}
for (size_t i = 0; i < g_contexts.size(); ++i) {
if (g_contexts[i] == nullptr) {
g_contexts[i] = whisper_init(path_model.c_str());
if (g_contexts[i] != nullptr) {
return i + 1;
} else {
return (size_t) 0;
}
if (g_context == nullptr) {
g_context = whisper_init(path_model.c_str());
if (g_context != nullptr) {
return true;
} else {
return false;
}
}
return (size_t) 0;
return false;
}));
emscripten::function("free", emscripten::optional_override([](size_t index) {
if (g_worker.joinable()) {
g_worker.join();
}
--index;
if (index < g_contexts.size()) {
whisper_free(g_contexts[index]);
g_contexts[index] = nullptr;
emscripten::function("free", emscripten::optional_override([]() {
if (g_context) {
whisper_free(g_context);
g_context = nullptr;
}
}));
emscripten::function("full_default", emscripten::optional_override([](size_t index, const emscripten::val & audio, const std::string & lang, bool translate) {
if (g_worker.joinable()) {
g_worker.join();
}
--index;
if (index >= g_contexts.size()) {
emscripten::function("full_default", emscripten::optional_override([](const emscripten::val & audio, const std::string & lang, bool translate) {
if (g_context == nullptr) {
return -1;
}
if (g_contexts[index] == nullptr) {
return -2;
}
struct whisper_full_params params = whisper_full_default_params(whisper_sampling_strategy::WHISPER_SAMPLING_GREEDY);
params.print_realtime = true;
@ -65,7 +50,7 @@ EMSCRIPTEN_BINDINGS(whisper) {
params.print_timestamps = true;
params.print_special = false;
params.translate = translate;
params.language = whisper_is_multilingual(g_contexts[index]) ? lang.c_str() : "en";
params.language = whisper_is_multilingual(g_context) ? lang.c_str() : "en";
params.n_threads = std::min(8, (int) std::thread::hardware_concurrency());
params.offset_ms = 0;
@ -82,9 +67,11 @@ EMSCRIPTEN_BINDINGS(whisper) {
// print system information
{
printf("\n");
printf("system_info: n_threads = %d / %d | %s\n",
params.n_threads, std::thread::hardware_concurrency(), whisper_print_system_info());
printf("\n");
printf("%s: processing %d samples, %.1f sec, %d threads, %d processors, lang = %s, task = %s ...\n",
__func__, int(pcmf32.size()), float(pcmf32.size())/WHISPER_SAMPLE_RATE,
params.n_threads, 1,
@ -94,13 +81,11 @@ EMSCRIPTEN_BINDINGS(whisper) {
printf("\n");
}
// run the worker
// run whisper
{
g_worker = std::thread([index, params, pcmf32 = std::move(pcmf32)]() {
whisper_reset_timings(g_contexts[index]);
whisper_full(g_contexts[index], params, pcmf32.data(), pcmf32.size());
whisper_print_timings(g_contexts[index]);
});
whisper_reset_timings(g_context);
whisper_full(g_context, params, pcmf32.data(), pcmf32.size());
whisper_print_timings(g_context);
}
return 0;