[FFmpeg-devel] [PATCH] vf_fade: fade alpha

Mark Himsley mark at mdsh.com
Thu Nov 3 02:10:07 CET 2011

also 8 bit RGB and YUV formats with alpha to allowed input formats.

If the input has alpha then only alpha levels are altered.

Typical simple cmmand might be:

./ffmpeg -i background.mov -vf 
"movie=strap.mov,fade=in:0:25,fade=out:99:25 [strap];[in][strap] 
overlay=0:0:rgb=1 [out]" -vframes 125 -vcodec [...] out.mov

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