M CHANGES → CHANGES

@@ -57,6 +57,7 @@ - Debugger: Make tracing compatible with breakpoints/watchpoints
  - Debugger: Print breakpoint/watchpoint number when inserting
  - Qt: Open a message box for Qt frontend errors
  - GBA Video: Clean up dead code in sprite rendering loop
+ - FFmpeg: Support audio-only recording
 
 0.7.1: (2019-02-24)
 Bugfixes:

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

@@ -55,10 +55,12 @@ encoder->resampleContext = NULL;
 	encoder->absf = NULL;
 	encoder->context = NULL;
 	encoder->scaleContext = NULL;
+	encoder->audio = NULL;
 	encoder->audioStream = NULL;
 	encoder->audioFrame = NULL;
 	encoder->audioBuffer = NULL;
 	encoder->postaudioBuffer = NULL;
+	encoder->video = NULL;
 	encoder->videoStream = NULL;
 	encoder->videoFrame = NULL;
 }
@@ -146,6 +148,12 @@ { AV_PIX_FMT_YUV422P, 4 },
 		{ AV_PIX_FMT_YUV444P, 5 },
 		{ AV_PIX_FMT_YUV420P, 6 }
 	};
+
+	if (!vcodec) {
+		encoder->videoCodec = 0;
+		return true;
+	}
+
 	AVCodec* codec = avcodec_find_encoder_by_name(vcodec);
 	if (!codec) {
 		return false;
@@ -189,13 +197,13 @@ 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) || !vcodec || !oformat) {
+	if ((encoder->audioCodec && !acodec) || (encoder->videoCodec && !vcodec) || !oformat) {
 		return false;
 	}
 	if (encoder->audioCodec && !avformat_query_codec(oformat, acodec->id, FF_COMPLIANCE_EXPERIMENTAL)) {
 		return false;
 	}
-	if (!avformat_query_codec(oformat, vcodec->id, FF_COMPLIANCE_EXPERIMENTAL)) {
+	if (encoder->videoCodec && !avformat_query_codec(oformat, vcodec->id, FF_COMPLIANCE_EXPERIMENTAL)) {
 		return false;
 	}
 	return true;
@@ -562,7 +570,7 @@ }
 
 void _ffmpegPostVideoFrame(struct mAVStream* stream, const color_t* pixels, size_t stride) {
 	struct FFmpegEncoder* encoder = (struct FFmpegEncoder*) stream;
-	if (!encoder->context) {
+	if (!encoder->context || !encoder->videoCodec) {
 		return;
 	}
 	stride *= BYTES_PER_PIXEL;
@@ -606,6 +614,9 @@ }
 
 static void _ffmpegSetVideoDimensions(struct mAVStream* stream, unsigned width, unsigned height) {
 	struct FFmpegEncoder* encoder = (struct FFmpegEncoder*) stream;
+	if (!encoder->context || !encoder->videoCodec) {
+		return;
+	}
 	encoder->iwidth = width;
 	encoder->iheight = height;
 	if (encoder->scaleContext) {

M src/platform/qt/VideoView.cpp → src/platform/qt/VideoView.cpp

@@ -275,7 +275,11 @@
 void VideoView::setVideoCodec(const QString& codec, bool manual) {
 	free(m_videoCodecCstr);
 	m_videoCodec = sanitizeCodec(codec, s_vcodecMap);
-	m_videoCodecCstr = strdup(m_videoCodec.toUtf8().constData());
+	if (m_videoCodec == "none") {
+		m_videoCodecCstr = nullptr;
+	} else {
+		m_videoCodecCstr = strdup(m_videoCodec.toUtf8().constData());
+	}
 	if (!FFmpegEncoderSetVideo(&m_encoder, m_videoCodecCstr, m_vbr)) {
 		free(m_videoCodecCstr);
 		m_videoCodecCstr = nullptr;