[FFmpeg-trac] #1993(avformat:new): Badly interleaved partial AVI file causes audio/video desync
FFmpeg
trac at avcodec.org
Wed Dec 5 15:00:28 CET 2012
#1993: Badly interleaved partial AVI file causes audio/video desync
-------------------------------------+-------------------------------------
Reporter: gjdfgh | Type: defect
Status: new | Priority: normal
Component: avformat | Version: git-
Keywords: | master
avi,interleaved | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Reproducible with streams.videolan.org/issues/ffmpeg/yet-another-broken-
interleaved-avi.avi and
{{{
dd if=yet-another-broken-interleaved-avi.avi of=test.avi bs=1048576
count=200
}}}
The problem description is exactly the same as #333, except with partial
files (the complete test file as linked above works fine, just cutting it
makes it fail).
Just like with bug #333 (before it was fixed), it causes desync after some
time of normal playback in ffplay/mplayer, and it works correctly with
mplayer -demuxer avi.
Compared to playback of the complete file, the following ffplay message is
missing:
{{{
[avi @ 0x7f94980008c0] non-interleaved AVI
}}}
which possibly means that the demuxer fails to recognize the file as badly
interleaved if the trailing part of the file is missing.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1993>
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