[mythtv] MacOS X MMX yuv420_2vuy Patch
Paul Bailey
bailey at dreamshake.net
Wed Sep 6 22:03:09 UTC 2006
On 6 Sep 2006, at 10:54 pm, Nigel Pearson wrote:
>> I'm no longer seeing a crash but I'm seeing a problem on startup or a
>> channel change with HDTV.
>>
>> The live TV freezes and I get a constant "NVP: Timed out waiting for
>> free video buffers."
>
> Todd and Paul are. Paul's tests seem to indicate
> some strange problem in the MMX function itself? See:
> http://svn.mythtv.org/trac/ticket/2312
>
>
> Mino, you mentioned some sort of harness that you used
> to test the MMX code. If it is standalone, could you please
> send me a copy?
>
> Otherwise, is there any chance of getting you to check
> for buffer overruns in the function? Having some dummy data
> (say a few hundred bytes of 0xF00F0FF0) either side of both
> the source and destination buffers should be enough to show
> any errant writes.
>
>
> And if any of you could provide -v playback output that
> shows the problem, it may help us.
>
> --
> Nigel Pearson, nigel at ind.tansu.com.au| "Let's see how Spike is going"
> Telstra Net. Eng., Sydney, Australia | ...
> Office: 9202 3900 Fax: 9261 3912 |"I'd like to keep Spike as my
> pet."
> Mobile: 0408 664435 Home: 9792 6998 | Illyria - Angel
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I just remembered, I was seeing the problem during MythVideo playback
of VIDEO_TS folders ripped from DVDs. I seem to recall recreating
the issue with -v playback...
And I have just replicated it. Log file attached to the ticket, not
sure how much help it is though. If I can do anything else to help,
please give me a shout.
Paul
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