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Published 20 hours ago • verified publisher icon Kagami

ffmpeg -c copy sometimes skips the first specified keyframe

Open Kagami opened this issue 7 years ago • 2 comments

Kagami avatar Sep 09 '16 08:09 Kagami

Seems to be FFmpeg's issue. Both mkvinfo and ffprobe signals keyframe at specific timestamp but ffmpeg -c copy skips copying until next keyframe.

Kagami avatar Oct 30 '16 18:10 Kagami

Reopening because this happens not that rare and would be good to fix or at least report it.

Another example: https://youtu.be/9fbrjY1S73E Save 1080p VP9, both mkvinfo and ffprobe indicate keyframe at 02:13.759, but first frame of -c copy is only at 02:13.801.

Kagami avatar Oct 27 '17 19:10 Kagami