Works but it is very slow because no SIMD is used. For example, jfk.wav is processed in ~23 seconds using "tiny.en" modelpull/70/head
Georgi Gerganov
2 years ago
parent
7d0dee7a8a
commit
e905c6f827
@ -0,0 +1,3 @@
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if (EMSCRIPTEN)
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add_subdirectory(javascript)
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endif()
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@ -0,0 +1 @@
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publish.log
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@ -0,0 +1,34 @@
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set(TARGET libwhisper)
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add_executable(${TARGET}
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emscripten.cpp
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)
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target_link_libraries(${TARGET} PRIVATE
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whisper
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)
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unset(EXTRA_FLAGS)
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if (WHISPER_WASM_SINGLE_FILE)
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set(EXTRA_FLAGS "-s SINGLE_FILE=1")
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message(STATUS "Embedding WASM inside whisper.js")
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add_custom_command(
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TARGET libwhisper POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy
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${CMAKE_BINARY_DIR}/bin/libwhisper.js
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${CMAKE_CURRENT_SOURCE_DIR}/whisper.js
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)
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endif()
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set_target_properties(${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=8 \
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-s TOTAL_MEMORY=536870912 \
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-s FORCE_FILESYSTEM=1 \
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-s EXPORT_NAME=\"'whisper_factory'\" \
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${EXTRA_FLAGS} \
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")
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@ -0,0 +1,70 @@
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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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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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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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}
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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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--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) {
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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_tokens = false;
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params.translate = false;
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params.language = "en";
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params.n_threads = 4;
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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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int ret = whisper_full(g_contexts[index], params, pcmf32.data(), pcmf32.size());
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whisper_print_timings(g_contexts[index]);
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return ret;
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}));
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}
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File diff suppressed because one or more lines are too long
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# Add new build types
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# ReleaseGG - Release with enabled asserts
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SET(CMAKE_CXX_FLAGS_RELEASEGG
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"-O3"
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CACHE STRING "Flags used by the c++ compiler during release builds with enabled asserts."
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FORCE )
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SET(CMAKE_C_FLAGS_RELEASEGG
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"-O3"
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CACHE STRING "Flags used by the compiler during release builds with enabled asserts."
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FORCE )
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SET(CMAKE_EXE_LINKER_FLAGS_RELEASEGG
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""
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CACHE STRING "Flags used for linking binaries during release builds with enabled asserts."
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FORCE )
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SET(CMAKE_SHARED_LINKER_FLAGS_RELEASEGG
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""
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CACHE STRING "Flags used by the shared libraries linker during release builds with enabled asserts."
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FORCE )
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MARK_AS_ADVANCED(
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CMAKE_CXX_FLAGS_RELEASEGG
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CMAKE_C_FLAGS_RELEASEGG
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CMAKE_EXE_LINKER_FLAGS_RELEASEGG
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CMAKE_SHARED_LINKER_FLAGS_RELEASEGG )
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# RelWithDebInfoGG - RelWithDebInfo with enabled asserts
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SET(CMAKE_CXX_FLAGS_RELWITHDEBINFOGG
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"-O2 -g"
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CACHE STRING "Flags used by the c++ compiler during release builds with debug symbols and enabled asserts."
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FORCE )
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SET(CMAKE_C_FLAGS_RELWITHDEBINFOGG
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"-O2 -g"
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CACHE STRING "Flags used by the compiler during release builds with debug symbols and enabled asserts."
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FORCE )
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SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFOGG
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""
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CACHE STRING "Flags used for linking binaries during release builds with debug symbols and enabled asserts."
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FORCE )
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SET(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFOGG
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""
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CACHE STRING "Flags used by the shared libraries linker during release builds with debug symbols and enabled asserts."
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FORCE )
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MARK_AS_ADVANCED(
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CMAKE_CXX_FLAGS_RELWITHDEBINFOGG
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CMAKE_C_FLAGS_RELWITHDEBINFOGG
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CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFOGG
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CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFOGG )
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if (NOT XCODE AND NOT MSVC AND NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo" "ReleaseGG" "RelWithDebInfoGG")
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endif()
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@ -0,0 +1,22 @@
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find_package(Git)
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# the commit's SHA1
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execute_process(COMMAND
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"${GIT_EXECUTABLE}" describe --match=NeVeRmAtCh --always --abbrev=8
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE GIT_SHA1
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ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
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# the date of the commit
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execute_process(COMMAND
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"${GIT_EXECUTABLE}" log -1 --format=%ad --date=local
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE GIT_DATE
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ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
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# the subject of the commit
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execute_process(COMMAND
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"${GIT_EXECUTABLE}" log -1 --format=%s
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE GIT_COMMIT_SUBJECT
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ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
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@ -0,0 +1,14 @@
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# dependencies
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find_package(Threads REQUIRED)
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# third-party
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#add_subdirectory(third-party)
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# examples
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if (EMSCRIPTEN)
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add_subdirectory(whisper.wasm)
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else()
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endif()
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set(TARGET whisper.wasm)
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configure_file(${CMAKE_CURRENT_SOURCE_DIR}/index-tmpl.html ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${TARGET}/index.html @ONLY)
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configure_file(${CMAKE_SOURCE_DIR}/bindings/javascript/whisper.js ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${TARGET}/whisper.js COPYONLY)
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# whisper.wasm
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Live demo: https://whisper.ggerganov.com
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<!doctype html>
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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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</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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<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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<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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<br><br>
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<div class="cell-version">
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<span>
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Build time: <span class="nav-link">@GIT_DATE@</span> |
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Commit hash: <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/commit/@GIT_SHA1@">@GIT_SHA1@</a> |
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Commit subject: <span class="nav-link">@GIT_COMMIT_SUBJECT@</span> |
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<a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/whisper.wasm">Source Code</a> |
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</span>
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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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window.AudioContext = window.AudioContext || window.webkitAudioContext;
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window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext;
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// web audio context
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var context = null;
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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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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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// helper function
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function convertTypedArray(src, type) {
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var buffer = new ArrayBuffer(src.byteLength);
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var baseView = new src.constructor(buffer).set(src);
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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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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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}
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reader.readAsArrayBuffer(file);
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}
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function loadAudio(event) {
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if (!context) {
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context = new AudioContext({sampleRate: 16000});
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}
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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>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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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) {
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var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate);
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var source = offlineContext.createBufferSource();
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source.buffer = audioBuffer;
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source.connect(offlineContext.destination);
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source.start(0);
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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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});
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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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// Transcribe
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//
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function onTranscribe() {
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init();
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}
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</script>
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</body>
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</html>
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Loading…
Reference in new issue