tests/ref/fate/ffmpeg-heif-merge - third_party/ffmpeg - Git at Google

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 #dimensions 0: 2560x1440
 #sar 0: 0/1
 0,          0,          0,        1,  5529600, 0x3bf5d001
	#tb 0: 1/1
	#media_type 0: video
	#codec_id 0: rawvideo
	#dimensions 0: 2560x1440
	#sar 0: 0/1
	0, 0, 0, 1, 5529600, 0x3bf5d001