On Mon, Dec 07, 2015 at 08:17:06 -0800, Roger Allen wrote: > I included a pointer at the end of the email. I regret that was not more > obvious to you. Please see > https://gist.github.com/rogerallen/426203d3a580898bd864
Apparently, the concat demuxer assigns DTS and PTS values to each frame. For some peculiar reason, these alternate between 0 and AV_NOPTS_VALUE: (grep extract of loglevel debug - "ffprobe -show_frames" gives the same info essentially:) [concat @ 0xac22900] file:140 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:0 pts_time:0 dts:0 dts_time:0 [concat @ 0xac22900] file:141 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:-9223372036854 pts_time:-3.68935e+11 dts:-9223372036854 dts_time:-3.68935e+11 [concat @ 0xac22900] file:142 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:0 pts_time:0 dts:0 dts_time:0 [concat @ 0xac22900] file:143 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:-9223372036854 pts_time:-3.68935e+11 dts:-9223372036854 dts_time:-3.68935e+11 [concat @ 0xac22900] file:144 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:0 pts_time:0 dts:0 dts_time:0 [concat @ 0xac22900] file:145 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:-9223372036854 pts_time:-3.68935e+11 dts:-9223372036854 dts_time:-3.68935e+11 [concat @ 0xac22900] file:146 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:0 pts_time:0 dts:0 dts_time:0 [concat @ 0xac22900] file:147 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:-9223372036854 pts_time:-3.68935e+11 dts:-9223372036854 dts_time:-3.68935e+11 [concat @ 0xac22900] file:148 stream:0 pts:0 pts_time:0 dts:0 dts_time:0 -> pts:0 pts_time:0 dts:0 dts_time:0 (I had made a 150 image concat input file instead of one with only 15 images.) Fishy. Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
