wip : WASM 128-bit SIMD support

bindings/javascript/CMakeLists.txt

@@ -21,13 +21,14 @@ if (WHISPER_WASM_SINGLE_FILE)
         )
 endif()
 
+#-s TOTAL_MEMORY=536870912 \
 set_target_properties(${TARGET} PROPERTIES LINK_FLAGS " \
     --bind \
     -s MODULARIZE=1 \
     -s ASSERTIONS=1 \
     -s USE_PTHREADS=1 \
-    -s PTHREAD_POOL_SIZE=8 \
-    -s TOTAL_MEMORY=536870912 \
+    -s PTHREAD_POOL_SIZE=9 \
+    -s ALLOW_MEMORY_GROWTH=1 \
     -s FORCE_FILESYSTEM=1 \
     -s EXPORT_NAME=\"'whisper_factory'\" \
     ${EXTRA_FLAGS} \

bindings/javascript/emscripten.cpp

@@ -4,6 +4,7 @@
 #include <emscripten/bind.h>
 
 #include <vector>
+#include <thread>
 
 std::vector<struct whisper_context *> g_contexts(4, nullptr);
 
@@ -47,7 +48,7 @@ EMSCRIPTEN_BINDINGS(whisper) {
         params.print_special_tokens = false;
         params.translate            = false;
         params.language             = "en";
-        params.n_threads            = 4;
+        params.n_threads            = std::min(8, (int) std::thread::hardware_concurrency());
         params.offset_ms            = 0;
 
         std::vector<float> pcmf32;