On Sat, 5 Aug 2017, Michael Niedermayer wrote:
On Fri, Aug 04, 2017 at 10:23:55AM +0200, Marton Balint wrote:
When the background had an alpha channel, the old code in blend_plane
calculated premultiplied alpha from the destination plane colors instead of the
destination alpha.
Also the calculation of the output alpha should only happen after the color
planes are already finished.
Fixes output of:
ffplay -f lavfi "testsrc2=alpha=32[a];color=black[b];[b][a]overlay[out0]"
if it is easy, please add a fate test when / after you push this
Ok, will do as a second step. I am going to apply this soon.
Regards,
Marton
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
