#6905: When copying video from .avi to .mp4, frames have incorrect pts values -------------------------------------+------------------------------------- Reporter: Misaki | Owner: Type: defect | Status: closed Priority: normal | Component: Version: git-master | undetermined Keywords: | Resolution: Blocking: | needs_more_info Analyzed by developer: 0 | Blocked By: | Reproduced by developer: 0 -------------------------------------+-------------------------------------
Comment (by Misaki): The workaround, MP4Box, stopped working on episode 6 when the encoder switched from XVID to DX50. The resulting file was half the size and had lots of missing frames (and pts not matching dts for frames). Playback was fine for the first 12 seconds, with no missing frames. Copying using ffmpeg starting at 13 seconds to another avi, and then copying that to mp4 using MP4Box, led to good output. Two videos had been combined, with different encoding parameters. For the original, MP4Box indicated 'Has B-Frames (8 max consecutive B-VOPs)'. For the video starting at the keyframe before 13 sec, it said 'Has B-Frames (2 max consecutive B-VOPs)'. (no packed bitstream.) This information is for anyone trying to get this to work when ffmpeg is bugged. -- Ticket URL: <https://trac.ffmpeg.org/ticket/6905#comment:6> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://ffmpeg.org/mailman/listinfo/ffmpeg-trac