[FFmpeg-trac] #5882(undetermined:reopened): Certain x264 videos do not play on Apple decoders (Quicktime/iTunes/iPad)

FFmpeg trac at avcodec.org
Tue Oct 11 01:50:40 EEST 2016

#5882: Certain x264 videos do not play on Apple decoders (Quicktime/iTunes/iPad)
             Reporter:  Technologov  |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mov          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
Changes (by Technologov):

 * status:  closed => reopened
 * resolution:  invalid =>


 OKAY, the good news is that "-video_track_timescale $VALUE" indeed fixed
 the problem.
 Ohh BTW, this parameter fixed BOTH MP4 and MOV containers. Still I think
 this is an ffmpeg bug.

 I think ffmpeg should guess video FPS (or read from another input), just
 like VLC player can *and* write it's a new "video_track_timescale"
 automatically, even if the input is bugged.

 It really sucks hunting down those issues in my video collection, that I
 suddenly discover after-the-fact that some of my videos do not play on an
 And if I was a bit less experienced user, I would give up long ago.

 Please consider checking this parameter when encoding a video, and rewrite
 this value if needed, giving a warning.


Ticket URL: <https://trac.ffmpeg.org/ticket/5882#comment:18>
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