On Thu, Nov 23, 2017 at 14:41:45 +0000, shailender Jain wrote: > I am trying to ensure that a specific number of B Frames should be > used by FFMPEG. I am running the following command
This list is solely for the discussion of the development of ffmpeg and libav*. For usage questions, please refer to the list ffmpeg-user. > However, when i look at the stats.txt, i cannot see 16 B-Frames. Is > there any way this can be done? I want to find a way by which i can > enforce if a frame will be B-Frame or P-Frame or I-Frame. Is this > feasible? If not, then please help me identify the source code where > i can update the code "-bf" only specifies the *maximum* number of B-frames. The encoder - in this case x264 - makes its own decisions, and will rarely choose 16. You can influence x264's decisions by using some of its special options, and passing them via ffmpeg's "-x264opts". See here (and slightly below) for a lot of options which *may* actually make x264 create 16 B-frames: http://www.chaneru.com/Roku/HLS/X264_Settings.htm#bframes Moritz _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
