[Bug 651968] [avidemux?] Pre-rolling problem with specific (broken?) movie

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=651968
  GStreamer | don't know | 0.10.34

Vincent Penquerc'h <vincent.penquerch> changed:

           What    |Removed                     |Added
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                 CC|                            |vincent.penquerch at collabora
                   |                            |.co.uk

--- Comment #5 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2011-09-09 15:10:58 UTC ---
Believe it or not, that file's audio track has 600 KB of 0 bytes at start.
playbin2 can play it once extracted, and removing the first 600 KB sounds the
same. Logs show mad skipping madly (ahem) over the first 600 KB trying to find
sync, and eventually finding it. That's too late when muxed with a video
though, as this will fill a queue before mad has prerolled.

VLC plays the video "correctly" - audio starts at 38 seconds into the video,
which seems to match what it should. I guess something has stomped over the
start of the audio track and zeroed it, it's not "just" padding.
The audio is allegedly 128 kbps, and 600 KB is about 38 seconds at that rate,
so it works out.

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