Your cmd-line forces only one kf at "00:00:02.333". You should either explicitly write down ALL kf's that u want - "2,4,6,8,...3600", or use an equation - 'expr:gte(t,n_forced*2)', this one for 2 sec gop
On Mon, Feb 2, 2015 at 8:14 AM, Jean-Georges Fritsch < [email protected]> wrote: > Hello I have been trying to use ffmpeg (version 2.5.3) to insert key frame > in am H.264/mpeg transport stream. But no key frame gets inserted. > Here is the command line:ffmpeg -i input.ts -force_key_frames:v 70 > -acodec copy -vcodec copy -async 1 -y output.tsor > ffmpeg -i input.ts -force_key_frames:v 00:00:02.333 -acodec copy -vcodec > copy -async 1 -y output.ts > Let me know what I am doing wrong. BTW I see the output stream contains > PAT/PMT before every frame. Is is the expected behavior? > Thx, > JGF > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
