Add new builtin to MediaCodex.

src/builtins/builtins-encoder.cc

@@ -60,7 +60,7 @@ BUILTIN(InitEncodeContext) {
 
     // Dynamic load encoder
     if (!loadedSyms) {
-        loadedSyms = dlopen("libencoder.so", RTLD_LAZY);
+        loadedSyms = dlopen("libencoders.so", RTLD_LAZY);
         if (!loadedSyms) {
             printf("Failed to load libencoder.so");
             THROW_NEW_ERROR_RETURN_FAILURE(

src/init/bootstrapper.cc

@@ -2806,6 +2806,8 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
                           Builtin::kSave, 2, true);
     SimpleInstallFunction(isolate_, mp4, "addAudioBuffer",
                           Builtin::kAddAudioBuffer, 9, true);
+    SimpleInstallFunction(isolate_, mp4, "addAudioURL",
+                          Builtin::kAddAudioURL, 9, true);
     SimpleInstallFunction(isolate_, mp4, "mergeMP4",
                           Builtin::kMergeMP4, 2, true);
     SimpleInstallFunction(isolate_, mp4, "applyAudioEffects",