whisper.wasm : copy lang string

Author: danbev

examples/whisper.wasm/emscripten.cpp

@@ -50,20 +50,17 @@ EMSCRIPTEN_BINDINGS(whisper) {
     }));
 
     emscripten::function("full_default", emscripten::optional_override([](size_t index, const emscripten::val & audio, const std::string &lang, int nthreads, bool translate) {
-        printf("[danbev] lang from emscripten: %s\n", lang.c_str());
         if (g_worker.joinable()) {
             g_worker.join();
         }
 
         --index;
 
         if (index >= g_contexts.size()) {
-            printf("[danbev] index out of range: %zu\n", index);
             return -1;
         }
 
         if (g_contexts[index] == nullptr) {
-            printf("[danbev] context is null: %zu\n", index);
             return -2;
         }
 
@@ -74,10 +71,7 @@ EMSCRIPTEN_BINDINGS(whisper) {
         params.print_timestamps = true;
         params.print_special    = false;
         params.translate        = translate;
-
-
-        params.language         = whisper_is_multilingual(g_contexts[index]) ? lang.c_str() : "en";
-        printf("[danbev] lang from emscripten setting params.language: %s\n", params.language);
+        params.language         = whisper_is_multilingual(g_contexts[index]) ? strdup(lang.c_str()) : "en";
         params.n_threads        = std::min(nthreads, std::min(16, mpow2(std::thread::hardware_concurrency())));
         params.offset_ms        = 0;
 
@@ -112,6 +106,10 @@ EMSCRIPTEN_BINDINGS(whisper) {
                 whisper_reset_timings(g_contexts[index]);
                 whisper_full(g_contexts[index], params, pcmf32.data(), pcmf32.size());
                 whisper_print_timings(g_contexts[index]);
+
+                if (params.language != nullptr && strcmp(params.language, "en") != 0) {
+                    free((void*)params.language);
+                }
             });
         }