It looks odd coz as per my understanding GOP with B frames generally ends with B frames and not P frame as you are getting. Can yu check if its open GOP or closed GOP or if you are missing to get the last B frames while interpreting?
On Fri, Dec 19, 2014 at 8:38 PM, Valentin Noël <[email protected]> wrote: > Hi to all, > > I would like to encode MPEG-2 video with closed GOP of 12 frames, and a > structure like IBBPBBPBBPBB. > For doing this, I am using these options : > *-g 12* to set the GOP size > *-bf 2* to set the max B frames between reference frames > *-flags +cgop* to use Closed GOP > *-sc_threshold 1000000000* to disable scene change detection > > However, the result is a GOP of 10 frames IBBPBBPBBP, with two missing B > frames. > > How can I do to fix this ? Is there something missing ? > > It seems that a "strict_gop" parameter (or "sgop" flag) used to exist in > former versions of ffmpe to enforce GOP size. Is there an equivalent > nowadays ? > > Thanks. > > Valentin > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > >
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