A bit more information on this issue, after created the concatenated file with the following commands [1] and [2], pasted at bottom, if I print pkt_pts_time via ffprobe with commands [3] and [4], I see that the timestamp of frame 302 is what is throwing things off when I compare the two list of frames:
frames_input: ... 300:frame,9.966667,P 301:frame,10.000000,P 302:frame,*10.033333*,I 303:frame,10.066667,B ... frames_concat: ... 300:frame,9.966667,P 301:frame,10.000000,P 302:frame,*10.083008*,I 303:frame,10.116341,B ... [1] ffmpeg -i input.mp4 -map 0 -c copy -f segment -segment_time 10 chunk_%03d.mp4 [2] ffmpeg -f concat -safe 0 -i mylist.txt -c copy concat.mp4 [3] ffprobe -select_streams v -show_entries frame=pict_type,pkt_pts_time -of csv input.mp4 | grep -n frame > frames_input [4] ffprobe -hide_banner -select_streams v -show_entries frame=pict_type,pkt_pts_time -of csv concat.mp4 | grep -n frame > frames_concat [5] diff frames_input frames_concat _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
