On 2021-03-18 20:12, Jan Ekström wrote:
So right now we do have an option in ffmpeg.c called itsoffset. It lets you configure the input offset in time (seconds - such as "1337.123" or time format - such as "00:00:01.123"). The only problem with it right now is that unless you set -copyts it will not get applied for anything else than subtitles, as the offset gets applied before and is not taken into account in the "start from PTS 0" calculation for video/audio streams.
Not the case. ffmpeg -f lavfi -itsoffset 3 -i nullsrc=r=1:d=3 -vf showinfo -f null - gives [Parsed_showinfo_0 @ 0000019cc1b88540] n: 0 pts: 3 pts_time:3 ... [Parsed_showinfo_0 @ 0000019cc1b88540] n: 1 pts: 4 pts_time:4 ... [Parsed_showinfo_0 @ 0000019cc1b88540] n: 2 pts: 5 pts_time:5 ... I've used it many times to adjust sync among streams. Regards, Gyan _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
