Node.js package (#260)
* npm : preparing infra for node package * npm : package infra ready * npm : initial version ready * npm : change name to whisper.cpp whisper.js is takenpull/271/head
Georgi Gerganov
2 years ago
committed by
GitHub
parent
aa6adda26e
commit
f309f97df6
@ -1,3 +1,19 @@
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if (EMSCRIPTEN)
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add_subdirectory(javascript)
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/javascript/publish.log
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/javascript/whisper.js
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/javascript/libwhisper.worker.js
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/javascript/package.json
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/javascript
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COMMAND npm publish
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COMMAND touch publish.log
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COMMENT "Publishing npm module v${PROJECT_VERSION}"
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VERBATIM
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)
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add_custom_target(publish-npm
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DEPENDS javascript/publish.log
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)
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endif()
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# whisper.cpp
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Node.js package for Whisper speech recognition
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For sample usage check [tests/test-whisper.js](/tests/test-whisper.js)
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"use strict";var Module={};var ENVIRONMENT_IS_NODE=typeof process=="object"&&typeof process.versions=="object"&&typeof process.versions.node=="string";if(ENVIRONMENT_IS_NODE){var nodeWorkerThreads=require("worker_threads");var parentPort=nodeWorkerThreads.parentPort;parentPort.on("message",data=>onmessage({data:data}));var fs=require("fs");Object.assign(global,{self:global,require:require,Module:Module,location:{href:__filename},Worker:nodeWorkerThreads.Worker,importScripts:function(f){(0,eval)(fs.readFileSync(f,"utf8")+"//# sourceURL="+f)},postMessage:function(msg){parentPort.postMessage(msg)},performance:global.performance||{now:function(){return Date.now()}}})}var initializedJS=false;var pendingNotifiedProxyingQueues=[];function threadPrintErr(){var text=Array.prototype.slice.call(arguments).join(" ");if(ENVIRONMENT_IS_NODE){fs.writeSync(2,text+"\n");return}console.error(text)}function threadAlert(){var text=Array.prototype.slice.call(arguments).join(" ");postMessage({cmd:"alert",text:text,threadId:Module["_pthread_self"]()})}var err=threadPrintErr;self.alert=threadAlert;Module["instantiateWasm"]=(info,receiveInstance)=>{var instance=new WebAssembly.Instance(Module["wasmModule"],info);receiveInstance(instance);Module["wasmModule"]=null;return instance.exports};self.onunhandledrejection=e=>{throw e.reason??e};self.onmessage=e=>{try{if(e.data.cmd==="load"){Module["wasmModule"]=e.data.wasmModule;for(const handler of e.data.handlers){Module[handler]=function(){postMessage({cmd:"callHandler",handler:handler,args:[...arguments]})}}Module["wasmMemory"]=e.data.wasmMemory;Module["buffer"]=Module["wasmMemory"].buffer;Module["ENVIRONMENT_IS_PTHREAD"]=true;if(typeof e.data.urlOrBlob=="string"){importScripts(e.data.urlOrBlob)}else{var objectUrl=URL.createObjectURL(e.data.urlOrBlob);importScripts(objectUrl);URL.revokeObjectURL(objectUrl)}whisper_factory(Module).then(function(instance){Module=instance})}else if(e.data.cmd==="run"){Module["__performance_now_clock_drift"]=performance.now()-e.data.time;Module["__emscripten_thread_init"](e.data.pthread_ptr,0,0,1);Module["establishStackSpace"]();Module["PThread"].receiveObjectTransfer(e.data);Module["PThread"].threadInitTLS();if(!initializedJS){Module["__embind_initialize_bindings"]();pendingNotifiedProxyingQueues.forEach(queue=>{Module["executeNotifiedProxyingQueue"](queue)});pendingNotifiedProxyingQueues=[];initializedJS=true}try{Module["invokeEntryPoint"](e.data.start_routine,e.data.arg)}catch(ex){if(ex!="unwind"){if(ex instanceof Module["ExitStatus"]){if(Module["keepRuntimeAlive"]()){}else{Module["__emscripten_thread_exit"](ex.status)}}else{throw ex}}}}else if(e.data.cmd==="cancel"){if(Module["_pthread_self"]()){Module["__emscripten_thread_exit"](-1)}}else if(e.data.target==="setimmediate"){}else if(e.data.cmd==="processProxyingQueue"){if(initializedJS){Module["executeNotifiedProxyingQueue"](e.data.queue)}else{pendingNotifiedProxyingQueues.push(e.data.queue)}}else if(e.data.cmd){err("worker.js received unknown command "+e.data.cmd);err(e.data)}}catch(ex){if(Module["__emscripten_thread_crashed"]){Module["__emscripten_thread_crashed"]()}throw ex}};
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{
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"name": "whisper.cpp",
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"version": "@PROJECT_VERSION@",
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"description": "Whisper speech recognition",
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"main": "whisper.js",
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"scripts": {
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"test": "echo \"todo: add tests\" && exit 0"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/ggerganov/whisper.cpp"
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},
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"keywords": [
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"openai",
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"whisper",
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"speech-to-text",
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"speech-recognition",
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"transformer"
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],
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"author": "Georgi Gerganov",
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"license": "MIT",
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"bugs": {
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"url": "https://github.com/ggerganov/whisper.cpp/issues"
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},
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"homepage": "https://github.com/ggerganov/whisper.cpp#readme"
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}
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{
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"name": "whisper.cpp",
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"version": "1.0.0",
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"description": "Whisper speech recognition",
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"main": "whisper.js",
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"scripts": {
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"test": "echo \"todo: add tests\" && exit 0"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/ggerganov/whisper.cpp"
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},
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"keywords": [
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"openai",
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"whisper",
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"speech-to-text",
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"speech-recognition",
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"transformer"
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],
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"author": "Georgi Gerganov",
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"license": "MIT",
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"bugs": {
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"url": "https://github.com/ggerganov/whisper.cpp/issues"
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},
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"homepage": "https://github.com/ggerganov/whisper.cpp#readme"
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}
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File diff suppressed because one or more lines are too long
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#include "whisper.h"
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#include <emscripten.h>
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#include <emscripten/bind.h>
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#include <vector>
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#include <thread>
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std::thread g_worker;
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std::vector<struct whisper_context *> g_contexts(4, nullptr);
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EMSCRIPTEN_BINDINGS(whisper) {
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emscripten::function("init", emscripten::optional_override([](const std::string & path_model) {
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if (g_worker.joinable()) {
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g_worker.join();
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}
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for (size_t i = 0; i < g_contexts.size(); ++i) {
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if (g_contexts[i] == nullptr) {
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g_contexts[i] = whisper_init(path_model.c_str());
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if (g_contexts[i] != nullptr) {
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return i + 1;
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} else {
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return (size_t) 0;
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}
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}
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}
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return (size_t) 0;
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}));
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emscripten::function("free", emscripten::optional_override([](size_t index) {
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if (g_worker.joinable()) {
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g_worker.join();
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}
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--index;
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if (index < g_contexts.size()) {
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whisper_free(g_contexts[index]);
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g_contexts[index] = nullptr;
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}
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}));
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emscripten::function("full_default", emscripten::optional_override([](size_t index, const emscripten::val & audio, const std::string & lang, bool translate) {
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if (g_worker.joinable()) {
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g_worker.join();
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}
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--index;
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if (index >= g_contexts.size()) {
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return -1;
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}
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if (g_contexts[index] == nullptr) {
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return -2;
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}
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struct whisper_full_params params = whisper_full_default_params(whisper_sampling_strategy::WHISPER_SAMPLING_GREEDY);
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params.print_realtime = true;
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params.print_progress = false;
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params.print_timestamps = true;
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params.print_special = false;
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params.translate = translate;
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params.language = whisper_is_multilingual(g_contexts[index]) ? lang.c_str() : "en";
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params.n_threads = std::min(8, (int) std::thread::hardware_concurrency());
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params.offset_ms = 0;
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std::vector<float> pcmf32;
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const int n = audio["length"].as<int>();
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emscripten::val heap = emscripten::val::module_property("HEAPU8");
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emscripten::val memory = heap["buffer"];
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pcmf32.resize(n);
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emscripten::val memoryView = audio["constructor"].new_(memory, reinterpret_cast<uintptr_t>(pcmf32.data()), n);
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memoryView.call<void>("set", audio);
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// print system information
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{
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printf("system_info: n_threads = %d / %d | %s\n",
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params.n_threads, std::thread::hardware_concurrency(), whisper_print_system_info());
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printf("%s: processing %d samples, %.1f sec, %d threads, %d processors, lang = %s, task = %s ...\n",
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__func__, int(pcmf32.size()), float(pcmf32.size())/WHISPER_SAMPLE_RATE,
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params.n_threads, 1,
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params.language,
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params.translate ? "translate" : "transcribe");
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printf("\n");
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}
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// run the worker
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{
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g_worker = std::thread([index, params, pcmf32 = std::move(pcmf32)]() {
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whisper_reset_timings(g_contexts[index]);
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whisper_full(g_contexts[index], params, pcmf32.data(), pcmf32.size());
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whisper_print_timings(g_contexts[index]);
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});
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}
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return 0;
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}));
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}
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var factory = require('../bindings/javascript/whisper.js')
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factory().then(function(whisper) {
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var fs = require('fs');
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// to avoid reading WAV files and depending on some 3rd-party package, we read
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// 32-bit float PCM directly. to genereate it:
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//
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// $ ffmpeg -i samples/jfk.wav -f f32le -acodec pcm_f32le samples/jfk.pcmf32
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//
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let fname_wav = "../samples/jfk.pcmf32";
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let fname_model = "../models/ggml-base.en.bin";
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// init whisper
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{
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// read binary data from file
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var model_data = fs.readFileSync(fname_model);
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if (model_data == null) {
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console.log("whisper: failed to read model file");
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process.exit(1);
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}
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// write binary data to WASM memory
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whisper.FS_createDataFile("/", "whisper.bin", model_data, true, true);
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// init the model
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var ret = whisper.init("whisper.bin");
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if (ret == false) {
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console.log('whisper: failed to init');
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process.exit(1);
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}
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}
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// transcribe wav file
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{
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// read raw binary data
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var pcm_data = fs.readFileSync(fname_wav);
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if (pcm_data == null) {
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console.log("whisper: failed to read wav file");
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process.exit(1);
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}
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// convert to 32-bit float array
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var pcm = new Float32Array(pcm_data.buffer);
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// transcribe
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var ret = whisper.full_default(pcm, "en", false);
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if (ret != 0) {
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console.log("whisper: failed to transcribe");
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process.exit(1);
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}
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}
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// free memory
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{
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whisper.free();
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}
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});
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