Hello , Thanks for the explanation .
As explained in the link (http://en.wikipedia.org/wiki/Group_of_pictures) that we can specify the GOP structure by two variables M , N . But what it seems from the -g option is that we can only specify the N (distance between the two I frames) not M . So can we have other option to specify completely the GOP structure in ffmpeg ? Thanks, Parag On Sat, Jun 6, 2015 at 5:55 PM, Moritz Barsnick <[email protected]> wrote: > Hi Parag, > > On Sat, Jun 06, 2015 at 10:26:19 +0530, Parag Goyal IMD, Applied > Chemistry, IT-BHU, Varanasi (INDIA) wrote: > > I was reading the ffmpeg's documentation and in that they have used > > ffmpeg -g 3 -r 3 -t 10 -b:v 50k -s qcif -f rv10 /tmp/b.rm > > under tips section . Please help me understand what -g is used for . > > As Kieran said, it defines the size of a GOP (group of pictures) in > number of frames. It's basically the interval between I-frames. > > I believe you have found a documentation bug. I too failed to find this > option documented, though it is well known, and used in many examples. > > Moritz > _______________________________________________ > 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
