[Bug 50733] MUSICUS!: ending videos play are extremely choppy

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50733

--- Comment #24 from castaneai <castaneai at castaneai.net> ---
(In reply to Zebediah Figura from comment #23)
> (In reply to castaneai from comment #21)
> > I looked into this issue further.
> > I got the current latest git master
> > (23ffd0a7986421958c23cffce138afa389209920) and output the report of
> > perform_qos.
> > 
> > The attached log shows that jitter is over 400ms regularly.
> > 
> > https://bugs.winehq.org/attachment.cgi?id=69625
> > 
> > The problem appears to be caused by the DirectShow's clock.
> 
> The jitter is negative, which means that the samples are arriving early
> (i.e. in time).
> 
> mpegpsdemux clips seeks (including seeks to the start of the stream) to a
> fixed segment that spans from the PTS of the first sample to the last, and
> both may be nonzero. In the case of MUSICUS!, the first PTS is about
> 0.39294. We incorrectly use the buffer PTS to report QoS events when we
> should be using the running time, so mpegpsdemux perpetually thinks that the
> last sample to arrive was stamped later than the one it is currently
> processing.
> 
> I was able to reproduce a similar problem with an MPEG-1 system file, though
> I didn't test with earlier Wine. My guess is that the bug was introduced by
> a3e7cfd4d7, and should be fixed by
> <https://source.winehq.org/patches/data/201821>.

Thank you very much. I applied your patch and the MPEG-1 playback worked fine!

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