[FFmpeg-devel] [PATCH] Add new MPEG bitstream filter

Jan Ekstrom jeebjp at gmail.com
Tue Aug 1 21:05:55 EEST 2017


On Tue, Aug 1, 2017 at 3:22 PM, David Griffiths
<david.griffiths at gmail.com> wrote:
> Given an MPEG1/2 stream, this bitstream filter can be used to modify
> the sequence headers. The most common use would be to change the
> aspect ration without the need for re-encoding. Some MOD files have
> the aspect ratio incorrectly set to 4:3
> (see https://en.wikipedia.org/wiki/MOD_and_TOD).

Thanks for the contribution, but this looks like a limited version of
https://lists.libav.org/pipermail/libav-devel/2017-July/084528.html ,
which seems to contain support for MPEG-2 bit stream filtering as

Please see if you can cherry-pick this patch set and test with it. The
framework posted on libav-devel seems more complete and seems to
support other formats than just MPEG-2 video. If it works for you,
feel free to post the patch set here as well.

Best regards,

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