mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2024-12-19 12:47:52 +00:00
1512545149
* whisper : add loader to allow loading from other than file * whisper : rename whisper_init to whisper_init_from_file * whisper : add whisper_init_from_buffer * android : Delete local.properties * android : load models directly from assets * whisper : adding <stddef.h> needed for size_t + code style Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
#include "whisper.h"
|
|
|
|
#include <emscripten.h>
|
|
#include <emscripten/bind.h>
|
|
|
|
#include <vector>
|
|
#include <thread>
|
|
|
|
std::thread g_worker;
|
|
|
|
std::vector<struct whisper_context *> g_contexts(4, nullptr);
|
|
|
|
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_from_file(path_model.c_str());
|
|
if (g_contexts[i] != nullptr) {
|
|
return i + 1;
|
|
} else {
|
|
return (size_t) 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return (size_t) 0;
|
|
}));
|
|
|
|
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("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()) {
|
|
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;
|
|
params.print_progress = false;
|
|
params.print_timestamps = true;
|
|
params.print_special = false;
|
|
params.translate = translate;
|
|
params.language = whisper_is_multilingual(g_contexts[index]) ? lang.c_str() : "en";
|
|
params.n_threads = std::min(8, (int) std::thread::hardware_concurrency());
|
|
params.offset_ms = 0;
|
|
|
|
std::vector<float> pcmf32;
|
|
const int n = audio["length"].as<int>();
|
|
|
|
emscripten::val heap = emscripten::val::module_property("HEAPU8");
|
|
emscripten::val memory = heap["buffer"];
|
|
|
|
pcmf32.resize(n);
|
|
|
|
emscripten::val memoryView = audio["constructor"].new_(memory, reinterpret_cast<uintptr_t>(pcmf32.data()), n);
|
|
memoryView.call<void>("set", audio);
|
|
|
|
// print system information
|
|
{
|
|
printf("system_info: n_threads = %d / %d | %s\n",
|
|
params.n_threads, std::thread::hardware_concurrency(), whisper_print_system_info());
|
|
|
|
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,
|
|
params.language,
|
|
params.translate ? "translate" : "transcribe");
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
// run the worker
|
|
{
|
|
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]);
|
|
});
|
|
}
|
|
|
|
return 0;
|
|
}));
|
|
}
|