M CHANGES → CHANGES

@@ -19,6 +19,7 @@ - Core: Fix race condition initializing thread proxy
  - Core: Ensure ELF regions can be written before trying
  - Core: Fix integer overflow in ELF loading
  - FFmpeg: Fix crash when -strict -2 is needed for vcodec or container
+ - FFmpeg: Disallow recording video with no audio nor video
  - Qt: Only dynamically reset video scale if a game is running
  - Qt: Fix race condition with proxied video events
  - Qt: Force OpenGL paint engine creation thread (fixes mgba.io/i/1642)

M src/feature/ffmpeg/ffmpeg-encoder.c → src/feature/ffmpeg/ffmpeg-encoder.c

@@ -232,7 +232,7 @@ bool FFmpegEncoderVerifyContainer(struct FFmpegEncoder* encoder) {
 	AVOutputFormat* oformat = av_guess_format(encoder->containerFormat, 0, 0);
 	AVCodec* acodec = avcodec_find_encoder_by_name(encoder->audioCodec);
 	AVCodec* vcodec = avcodec_find_encoder_by_name(encoder->videoCodec);
-	if ((encoder->audioCodec && !acodec) || (encoder->videoCodec && !vcodec) || !oformat) {
+	if ((encoder->audioCodec && !acodec) || (encoder->videoCodec && !vcodec) || !oformat || (!acodec && !vcodec)) {
 		return false;
 	}
 	if (encoder->audioCodec && !avformat_query_codec(oformat, acodec->id, FF_COMPLIANCE_EXPERIMENTAL)) {