[FFmpeg-trac] #2396(avfilter:new): Make the Blend effect work with yuvj420p pixel format
FFmpeg
trac at avcodec.org
Sat Mar 23 16:22:41 CET 2013
#2396: Make the Blend effect work with yuvj420p pixel format
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Reporter: sun | Type: enhancement
Status: new | Priority: wish
Component: avfilter | Version: unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Using the command
{{{
ffmpeg -i (input) -y -vcodec libx264 -acodec copy -vb 100000k -vf "split
[T1], [T2] blend [out]; [T1] copy [T2]" -r 25 (output)
}}}
With an input video in yuvj420p format, and also using
{{{
ffmpeg -i (input) -y -vcodec libx264 -acodec copy -vb 100000k -vf
"format=yuvj420p, split [T1], [T2] blend [out]; [T1] copy [T2]" -r 25
(output)
}}}
will output a video in yuv420p format, so color depth is lost.
For my purposes I have simply added AV_PIX_FMT_YUVJ420P to the
query_formats enum in vf_blend.c and it works well.
It would be great if the blend filter would work with yuvjxxxp formats out
of the box, too.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2396>
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