mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2024-12-19 20:57:52 +00:00
wip : polishing WASM example
This commit is contained in:
Georgi Gerganov
parent
db460b78ff
commit
491ecd7056
@ -21,15 +21,13 @@ if (WHISPER_WASM_SINGLE_FILE)
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)
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endif()
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#-s TOTAL_MEMORY=536870912 \
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set_target_properties(${TARGET} PROPERTIES LINK_FLAGS " \
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--bind \
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-s MODULARIZE=1 \
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-s ASSERTIONS=1 \
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-s USE_PTHREADS=1 \
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-s PTHREAD_POOL_SIZE=9 \
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-s ALLOW_MEMORY_GROWTH=1 \
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-s PTHREAD_POOL_SIZE=8 \
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-s INITIAL_MEMORY=1610612736 \
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-s TOTAL_MEMORY=1610612736 \
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-s FORCE_FILESYSTEM=1 \
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-s EXPORT_NAME=\"'whisper_factory'\" \
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-s EXPORTED_RUNTIME_METHODS=\"['print', 'printErr', 'ccall', 'cwrap']\" \
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${EXTRA_FLAGS} \
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")
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@ -13,7 +13,11 @@ EMSCRIPTEN_BINDINGS(whisper) {
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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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return i + 1;
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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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@ -29,7 +33,7 @@ EMSCRIPTEN_BINDINGS(whisper) {
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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) {
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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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--index;
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if (index >= g_contexts.size()) {
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@ -42,15 +46,20 @@ EMSCRIPTEN_BINDINGS(whisper) {
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struct whisper_full_params params = whisper_full_default_params(whisper_sampling_strategy::WHISPER_SAMPLING_GREEDY);
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printf("full_default: available threads %d\n", std::thread::hardware_concurrency());
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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_tokens = false;
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params.translate = false;
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params.language = "en";
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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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printf("full_default: using %d threads\n", params.n_threads);
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printf("full_default: language '%s'\n", params.language);
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std::vector<float> pcmf32;
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const int n = audio["length"].as<int>();
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File diff suppressed because one or more lines are too long
@ -2,22 +2,170 @@
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<html lang="en-us">
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<head>
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<title>whisper.cpp : WASM example</title>
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<style>
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#output {
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width: 100%;
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height: 100%;
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margin: 0 auto;
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margin-top: 10px;
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border-left: 0px;
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border-right: 0px;
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padding-left: 0px;
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padding-right: 0px;
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display: block;
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background-color: black;
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color: white;
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font-size: 10px;
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font-family: 'Lucida Console', Monaco, monospace;
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outline: none;
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white-space: pre;
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overflow-wrap: normal;
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overflow-x: scroll;
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}
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</style>
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</head>
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<body>
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<div id="main-container">
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Minimal <b>whisper.cpp</b> example using Javascript bindings
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<b>Minimal <a href="https://github.com/ggerganov/whisper.cpp">whisper.cpp</a> example running fully in the browser</b>
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<br><br>
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Model:
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<input type="file" id="file" name="file" onchange="loadFile(event, 'ggml.bin')" />
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Usage instructions:<br>
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<ul>
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<li>Load a ggml model file (you can obtain one from <a href="https://ggml.ggerganov.com/">here</a>, recommended: <b>tiny</b> or <b>base</b>)</li>
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<li>Select audio file to transcribe or record audio from the microphone (sample: <a href="https://whisper.ggerganov.com/jfk.wav">jfk.wav</a>)</li>
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<li>Click on the "Transcribe" button to start the transcription</li>
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</ul>
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Note that the computation is quite heavy and may take a few seconds to complete.<br>
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The transcription results will be displayed in the text area below.<br><br>
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<b>Important: your browser must support WASM SIMD instructions for this to work.</b>
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<br><br><hr>
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<div id="model">
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Model:
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<input type="file" id="file" name="file" onchange="loadFile(event, 'ggml.bin')" />
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</div>
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<br>
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<!-- radio button to select between file upload or microphone -->
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<div id="input">
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Input:
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<input type="radio" id="file" name="input" value="file" checked="checked" onchange="changeInput('file')" /> File
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<input type="radio" id="mic" name="input" value="mic" onchange="changeInput('mic')" /> Microphone
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</div>
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<br>
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<div id="input_file">
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Audio file:
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<input type="file" id="file" name="file" onchange="loadAudio(event)" />
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</div>
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<div id="input_mic" style="display: none;">
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Microphone:
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<button id="start" onclick="startRecording()">Start</button>
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<button id="stop" onclick="stopRecording()" disabled>Stop</button>
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<!-- progress bar to show recording progress -->
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<br><br>
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<div id="progress" style="display: none;">
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<div id="progress-bar" style="width: 0%; height: 10px; background-color: #4CAF50;"></div>
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<div id="progress-text">0%</div>
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</div>
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</div>
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<audio controls="controls" id="audio" loop hidden>
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Your browser does not support the <audio> tag.
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<source id="source" src="" type="audio/wav" />
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</audio>
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<hr><br>
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<table>
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<tr>
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<td>
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Language:
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<select id="language" name="language">
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<option value="en">English</option>
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<option value="ar">Arabic</option>
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<option value="hy">Armenian</option>
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<option value="az">Azerbaijani</option>
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<option value="eu">Basque</option>
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<option value="be">Belarusian</option>
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<option value="bn">Bengali</option>
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<option value="bg">Bulgarian</option>
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<option value="ca">Catalan</option>
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<option value="zh">Chinese</option>
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<option value="hr">Croatian</option>
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<option value="cs">Czech</option>
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<option value="da">Danish</option>
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<option value="nl">Dutch</option>
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<option value="en">English</option>
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<option value="et">Estonian</option>
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<option value="tl">Filipino</option>
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<option value="fi">Finnish</option>
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<option value="fr">French</option>
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<option value="gl">Galician</option>
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<option value="ka">Georgian</option>
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<option value="de">German</option>
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<option value="el">Greek</option>
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<option value="gu">Gujarati</option>
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<option value="iw">Hebrew</option>
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<option value="hi">Hindi</option>
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<option value="hu">Hungarian</option>
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<option value="is">Icelandic</option>
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<option value="id">Indonesian</option>
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<option value="ga">Irish</option>
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<option value="it">Italian</option>
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<option value="ja">Japanese</option>
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<option value="kn">Kannada</option>
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<option value="ko">Korean</option>
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<option value="la">Latin</option>
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<option value="lv">Latvian</option>
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<option value="lt">Lithuanian</option>
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<option value="mk">Macedonian</option>
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<option value="ms">Malay</option>
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<option value="mt">Maltese</option>
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<option value="no">Norwegian</option>
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<option value="fa">Persian</option>
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<option value="pl">Polish</option>
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<option value="pt">Portuguese</option>
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<option value="ro">Romanian</option>
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<option value="ru">Russian</option>
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<option value="sr">Serbian</option>
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<option value="sk">Slovak</option>
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<option value="sl">Slovenian</option>
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<option value="es">Spanish</option>
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<option value="sw">Swahili</option>
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<option value="sv">Swedish</option>
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<option value="ta">Tamil</option>
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<option value="te">Telugu</option>
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<option value="th">Thai</option>
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<option value="tr">Turkish</option>
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<option value="uk">Ukrainian</option>
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<option value="ur">Urdu</option>
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<option value="vi">Vietnamese</option>
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<option value="cy">Welsh</option>
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<option value="yi">Yiddish</option>
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</select>
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</td>
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<td>
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<button onclick="onProcess(false);">Transcribe</button>
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</td>
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<td>
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<button onclick="onProcess(true);">Translate</button>
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</td>
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</tr>
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</table>
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<br><br>
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WAV:
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<input type="file" id="file" name="file" onchange="loadAudio(event)" />
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<br><br>
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<button onclick="onTranscribe();">Transcribe</button>
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<!-- textarea with height filling the rest of the page -->
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<textarea id="output" rows="20"></textarea>
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<br><br>
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@ -32,8 +180,60 @@
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</div>
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</div>
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<script type="text/javascript" src="whisper.js"></script>
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<script type='text/javascript'>
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// TODO: convert audio buffer to WAV
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function setAudio(audio) {
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//if (audio) {
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// // convert to 16-bit PCM
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// var blob = new Blob([audio], { type: 'audio/wav' });
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// var url = URL.createObjectURL(blob);
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// document.getElementById('source').src = url;
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// document.getElementById('audio').hidden = false;
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// document.getElementById('audio').loop = false;
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// document.getElementById('audio').load();
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//} else {
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// document.getElementById('audio').hidden = true;
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//}
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}
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function changeInput(input) {
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if (input == 'file') {
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document.getElementById('input_file').style.display = 'block';
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document.getElementById('input_mic').style.display = 'none';
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document.getElementById('progress').style.display = 'none';
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} else {
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document.getElementById('input_file').style.display = 'none';
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document.getElementById('input_mic').style.display = 'block';
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document.getElementById('progress').style.display = 'block';
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}
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}
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var printTextarea = (function() {
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var element = document.getElementById('output');
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if (element) element.alue = ''; // clear browser cache
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return function(text) {
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if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
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console.log(text);
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if (element) {
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element.value += text + "\n";
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element.scrollTop = element.scrollHeight; // focus on bottom
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}
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};
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})();
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var Module = {
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print: printTextarea,
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printErr: printTextarea,
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setStatus: function(text) {
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printTextarea('js: ' + text);
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},
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monitorRunDependencies: function(left) {
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}
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};
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const kMaxAudio_s = 120;
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const kSampleRate = 16000;
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window.AudioContext = window.AudioContext || window.webkitAudioContext;
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window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext;
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@ -43,15 +243,9 @@
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// audio data
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var audio = null;
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// the whisper module instance
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var whisper = null;
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// the whisper instance
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var instance = null;
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// instantiate the whisper instance
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// whisper_factory comes from the whisper.js module
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whisper_factory().then(function(obj) {
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whisper = obj;
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});
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var model_fname = '';
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// helper function
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function convertTypedArray(src, type) {
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@ -60,47 +254,29 @@
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return new type(buffer);
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}
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// initialize whisper
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function init() {
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if (!instance) {
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instance = whisper.init('ggml.bin');
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if (instance) {
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console.log('whisper instance initialized');
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}
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}
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if (!instance) {
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console.log('whisper instance initialization failed');
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return;
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}
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if (instance) {
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var ret = whisper.full_default(instance, audio);
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if (ret) {
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console.log('whisper full_default returned: ' + ret);
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}
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}
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}
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function loadFile(event, fname) {
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var file = event.target.files[0] || null;
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if (file == null) {
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return;
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}
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console.log(
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"<p>File information: <strong>" + file.name +
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"</strong> type: <strong>" + file.type +
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"</strong> size: <strong>" + file.size +
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"</strong> bytes</p>"
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);
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printTextarea("js: loading model: " + file.name + ", size: " + file.size + " bytes");
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printTextarea('js: please wait ...');
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var reader = new FileReader();
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reader.onload = function(event) {
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var buf = new Uint8Array(reader.result);
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// write to WASM file using whisper.FS_createDataFile
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whisper.FS_createDataFile("/", fname, buf, true, true);
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// if the file exists, delete it
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try {
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Module.FS_unlink(fname);
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} catch (e) {
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}
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Module.FS_createDataFile("/", fname, buf, true, true);
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model_fname = file.name;
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printTextarea('js: loaded model: ' + model_fname + ' size: ' + buf.length);
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}
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reader.readAsArrayBuffer(file);
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}
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@ -115,12 +291,8 @@
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return;
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}
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console.log(
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"<p>Audio information: <strong>" + file.name +
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"</strong> type: <strong>" + file.type +
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"</strong> size: <strong>" + file.size +
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"</strong> bytes</p>"
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);
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printTextarea('js: loading audio: ' + file.name + ', size: ' + file.size + ' bytes');
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printTextarea('js: please wait ...');
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var reader = new FileReader();
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reader.onload = function(event) {
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@ -135,19 +307,172 @@
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offlineContext.startRendering().then(function(renderedBuffer) {
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audio = renderedBuffer.getChannelData(0);
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//var audio16 = convertTypedArray(data, Int16Array);
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printTextarea('js: audio loaded, size: ' + audio.length);
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// truncate to first 30 seconds
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if (audio.length > kMaxAudio_s*kSampleRate) {
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audio = audio.slice(0, kMaxAudio_s*kSampleRate);
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printTextarea('js: truncated audio to first ' + kMaxAudio_s + ' seconds');
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}
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setAudio(audio);
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});
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}, function(e) {
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printTextarea('js: error decoding audio: ' + e);
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audio = null;
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setAudio(audio);
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});
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}
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reader.readAsArrayBuffer(file);
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}
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//
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// Microphone
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//
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var mediaRecorder = null;
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var doRecording = false;
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var startTime = 0;
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function stopRecording() {
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doRecording = false;
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}
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// record up to kMaxAudio_s seconds of audio from the microphone
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// check if doRecording is false every 1000 ms and stop recording if so
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// update progress information
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function startRecording() {
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if (!context) {
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context = new AudioContext({sampleRate: 16000});
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}
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document.getElementById('start').disabled = true;
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document.getElementById('stop').disabled = false;
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document.getElementById('progress-bar').style.width = '0%';
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document.getElementById('progress-text').innerHTML = '0%';
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doRecording = true;
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startTime = Date.now();
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var chunks = [];
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var stream = null;
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navigator.mediaDevices.getUserMedia({audio: true, video: false})
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.then(function(s) {
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stream = s;
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mediaRecorder = new MediaRecorder(stream);
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mediaRecorder.ondataavailable = function(e) {
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chunks.push(e.data);
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};
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mediaRecorder.onstop = function(e) {
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var blob = new Blob(chunks, { 'type' : 'audio/ogg; codecs=opus' });
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chunks = [];
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document.getElementById('start').disabled = false;
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document.getElementById('stop').disabled = true;
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var reader = new FileReader();
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reader.onload = function(event) {
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var buf = new Uint8Array(reader.result);
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|
||||
context.decodeAudioData(buf.buffer, function(audioBuffer) {
|
||||
var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate);
|
||||
var source = offlineContext.createBufferSource();
|
||||
source.buffer = audioBuffer;
|
||||
source.connect(offlineContext.destination);
|
||||
source.start(0);
|
||||
|
||||
offlineContext.startRendering().then(function(renderedBuffer) {
|
||||
audio = renderedBuffer.getChannelData(0);
|
||||
printTextarea('js: audio recorded, size: ' + audio.length);
|
||||
|
||||
// truncate to first 30 seconds
|
||||
if (audio.length > kMaxAudio_s*kSampleRate) {
|
||||
audio = audio.slice(0, kMaxAudio_s*kSampleRate);
|
||||
printTextarea('js: truncated audio to first ' + kMaxAudio_s + ' seconds');
|
||||
}
|
||||
setAudio(audio);
|
||||
});
|
||||
}, function(e) {
|
||||
printTextarea('js: error decoding audio: ' + e);
|
||||
audio = null;
|
||||
setAudio(audio);
|
||||
});
|
||||
}
|
||||
|
||||
reader.readAsArrayBuffer(blob);
|
||||
};
|
||||
mediaRecorder.start();
|
||||
})
|
||||
.catch(function(err) {
|
||||
printTextarea('js: error getting audio stream: ' + err);
|
||||
});
|
||||
|
||||
var interval = setInterval(function() {
|
||||
if (!doRecording) {
|
||||
clearInterval(interval);
|
||||
mediaRecorder.stop();
|
||||
stream.getTracks().forEach(function(track) {
|
||||
track.stop();
|
||||
});
|
||||
}
|
||||
|
||||
document.getElementById('progress-bar').style.width = (100*(Date.now() - startTime)/1000/kMaxAudio_s) + '%';
|
||||
document.getElementById('progress-text').innerHTML = (100*(Date.now() - startTime)/1000/kMaxAudio_s).toFixed(0) + '%';
|
||||
}, 1000);
|
||||
|
||||
printTextarea('js: recording ...');
|
||||
|
||||
setTimeout(function() {
|
||||
if (doRecording) {
|
||||
printTextarea('js: recording stopped after ' + kMaxAudio_s + ' seconds');
|
||||
stopRecording();
|
||||
}
|
||||
}, kMaxAudio_s*1000);
|
||||
}
|
||||
|
||||
//
|
||||
// Transcribe
|
||||
//
|
||||
|
||||
function onTranscribe() {
|
||||
init();
|
||||
function onProcess(translate) {
|
||||
if (!instance) {
|
||||
instance = Module.init('ggml.bin');
|
||||
|
||||
if (instance) {
|
||||
printTextarea("js: whisper initialized, instance: " + instance);
|
||||
document.getElementById('model').innerHTML = 'Model loaded: ' + model_fname;
|
||||
}
|
||||
}
|
||||
|
||||
if (!instance) {
|
||||
printTextarea("js: failed to initialize whisper");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!audio) {
|
||||
printTextarea("js: no audio data");
|
||||
return;
|
||||
}
|
||||
|
||||
if (instance) {
|
||||
printTextarea('');
|
||||
printTextarea('js: processing - this might take a while ...');
|
||||
printTextarea('js: the page will be unresponsive until the processing is completed');
|
||||
printTextarea('');
|
||||
printTextarea('');
|
||||
|
||||
setTimeout(function() {
|
||||
var ret = Module.full_default(instance, audio, document.getElementById('language').value, translate);
|
||||
console.log('js: full_default returned: ' + ret);
|
||||
if (ret) {
|
||||
printTextarea("js: whisper returned: " + ret);
|
||||
}
|
||||
}, 100);
|
||||
}
|
||||
}
|
||||
</script>
|
||||
<script type="text/javascript" src="whisper.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user