avisynth: Validate downmix option

Because... let's maybe not let users make Aegisub call arbitrary symbols in avisynth.dll/so just by editing the config.json.
TypesettingTools · Aug 12, 2022 · ce1b3a0 · ce1b3a0
1 parent fe28567
commit ce1b3a0
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/audio_provider_avs.cpp b/src/audio_provider_avs.cpp
@@ -113,8 +113,9 @@ void AvisynthAudioProvider::LoadFromClip(AVSValue clip) {
 	AVSValue script;
 
 	// Convert to one channel
-	if (OPT_GET("Audio/Downmixer")->GetString() != "None")
-		script = env->Invoke(OPT_GET("Audio/Downmixer")->GetString().c_str(), clip);
+	std::string downmixtype = OPT_GET("Audio/Downmixer")->GetString();
+	if (downmixtype == "ConvertToMono" || downmixtype == "GetLeftChannel" || downmixtype == "GetRightChannel")
+		script = env->Invoke(downmixtype.c_str(), clip);
 	else
 		script = clip;