#11436: Changing stream properties (matrix/primaries/transfer) make FFMpeg crash
-------------------------------------+-------------------------------------
Reporter: Francesco | Owner: (none)
Bucciantini |
Type: defect | Status: new
Priority: normal | Component: swscale
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by Francesco Bucciantini):
Yes, it is indeed a breaking change compared to the 6.x branch, so I also
agree with emcodem on the fact that it should be opt-in rather than opt-
out.
Using the suggested method by emcodem works, namely:
{{{
ffmpeg -reinit_filter:v 0 -i Interview.mxf -f null -
}}}
however as soon as we insert -pix_fmt to convert from yv16 to yv12 (i.e
from 4:2:2 8bit planar to 4:2:0 8bit planar):
{{{
ffmpeg -reinit_filter:v 0 -i Interview.mxf -pix_fmt yuv420p -f null -
}}}
it fails with the following error: Changing video frame properties on the
fly is not supported by all filters.
One could work around the issue by setting the set info in the filter
graph at the very beginning, like, in this case, that would be:
{{{
setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709
}}}
however that's more of a workaround than a solution. The best thing would
be to get the same behavior as the FFMpeg 6.x branch to avoid making this
a breaking change which would hinder compatibility with a lot of scripts
and BAT files unless rewritten ad hoc.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11436#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
