[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)
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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
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Changes (by Technologov):
* status: closed => reopened
* resolution: invalid =>
Comment:
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
iPad.
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.
-Technologov
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Ticket URL: <https://trac.ffmpeg.org/ticket/5882#comment:18>
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