[mythtv-users] VDPAU Current Status Report

ryan patterson ryan.goat at gmail.com
Wed Jan 7 17:04:40 UTC 2009


On Wed, Jan 7, 2009 at 10:47 AM, Mitch Gore <mitchell.gore at gmail.com> wrote:
>>> 1.  De-interlacing doesnt work, most options result in prebuffering
>>> pauses.  Only one that somewhat works is Advanced 2x but the video is
>>> still jerky.
>>
>> The consensus seems to be that, while video decoding has dedicated
>> circuitry, deinterlacing uses the 3d pipeline (i.e. shaders). Hence
>> older/less capable cards may struggle as their 3d performance isn't
>> great. I would expect you to still get reasonable performance from
>> bobdeint (the vdpau version that is).
>
> Nope, Ill post logs tonight when i get a chance.
>
>>> 2. Some times when started a video it wont start at all or I get a
>>> black screen with sound only.
>>
>> Could be a resources (how much memory does your card have?), codec
>> (should only happen with baseline h264 - but rare), X/compositing
>> (there are various issues with the playback losing focus), xrandr
>> (xrandr/vdpau don't play)...
>
> PCI 8400 GS w/ 512mb RAM.  Playing Mpeg2 OTA HD 1080i
>
>> Probably a number of other possibilities, but without logs/tickets
>> etc, it won't necessarily get fixed.
>
> ill get some tonight.  Should i play with -v playback or not?
>
>
>
> --
> Mitchell
>

Quick feedback. . . VDPAU works perfectly for me now.  I compiled
trunk on Christmas Eve.  Sense then it has been stable and smooth
playback perfect OSD too.


-- 
_____________
Ryan Patterson


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