[MPlayer-dev-eng] Proposed patch for ASF lock up due to consecutive video packets with no valid PTS.

Robert Krakora rob.krakora at messagenetsystems.com
Mon Oct 12 21:00:31 CEST 2009

Basically the problem occurs when a frame arrives with no PTS and giant
invalid PTS value is returned by design and on the next frame it is used in
a calculation and the frame time ends up being over 1000000 and it is passed
to a sleep function causing the application to hang for hours on end.  The
overall design looks sound except for this one parasitic case which appears
to be valid.  I will attempt another patch that allows for longer frames...

On Mon, Oct 12, 2009 at 2:22 PM, Uoti Urpala <uoti.urpala at pp1.inet.fi>wrote:

> On Mon, 2009-10-12 at 14:06 -0400, Robert Krakora wrote:
> > I improved the patch (see below)...I don't recall getting any responses
> on
> > this yet...
> The video.c code does look buggy. Does playback work if you use
> -correct-pts (which avoids using that video.c code at all)? I don't have
> any asf files on hand here to easily test.
> Your patch assumes that frame durations over one second are invalid.
> However there are valid files with frames longer than that.
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Rob Krakora
Senior Software Engineer
MessageNet Systems
101 East Carmel Dr. Suite 105
Carmel, IN 46032
(317)566-1677 Ext. 206
(317)663-0808 Fax

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