However, now that I understand that for 4 seconds transition you need 4 seconds on each video, I don't understand why you need two parameters, duration and offset. Why not simply define the duration, and have ffmpeg calculate the offset as videoDuration minus transitionDuration?
I think that's because when the transition begins FFmpeg doesn't yet know the length of the input stream.
It could also be a live stream with unknown length. Michael _______________________________________________ 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".