[FFmpeg-trac] #7355(avcodec:new): No MJPEG input with MMAL decoder
FFmpeg
trac at avcodec.org
Fri Aug 21 17:15:38 EEST 2020
#7355: No MJPEG input with MMAL decoder
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Reporter: Serveurperso | Owner:
Type: enhancement | Status: new
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: mmal | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by lgeek):
I haven't yet checked how to submit ffmpeg patches, but I've added MJPEG
support with this patch
https://github.com/lgeek/FFmpeg/commit/10a7ccaceb5. For decoding directly
from a v4l2 device I've also had to implement this, otherwise it only
works when ffmpeg is launched for the first time after a reboot (it looks
like the first frame read on subsequent executions is invalid, which the
current logic in mmaldec doesn't like):
https://github.com/lgeek/FFmpeg/commit/4fcb83f2aa2b1d2e
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Ticket URL: <https://trac.ffmpeg.org/ticket/7355#comment:3>
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