Hi, that certainly does sound as though it does the same as my patch plus more. I will download libav and have a play.
Cheers, David On Tue, 1 Aug 2017 at 20:59, Mark Thompson <s...@jkqxz.net> wrote: > On 01/08/17 19:05, Jan Ekstrom wrote: > > Hi, > > > > On Tue, Aug 1, 2017 at 3:22 PM, David Griffiths > > <david.griffi...@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 > > well. > I'm intending to bring this across myself soon. It's slightly awkward > because it's all written against Alexandra's bitstream API and would need > to be changed to get_bits here. (I was hoping the API would come at some > point, but apparently people here are generally against it. Oh well.) > > Anyway, I finished off a half-written MPEG-2 metadata filter which will do > the stuff described here: < > https://lists.libav.org/pipermail/libav-devel/2017-August/084563.html>. > I've ignored MPEG-1 so far, but it would probably be easy to add if anyone > cares. > > - Mark > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
