id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
1750	Prores encoders do not support writing alpha	cehoyos		"Kostya's prores encoder currently only supports PIX_FMT_YUV444P10 as yuv444 format, meaning no alpha channel is written to the output file. See ticket #1728 for a sample with actual alpha content.

There is currently no suitable pixel format in FFmpeg, see ticket #1749 for the enhancement request."	enhancement	new	wish	avcodec	git-master		prores alpha				0	0