[mythtv-users] Ticket 11377 was: Region free DVD player?

[faginbagin]

On 4/4/2014 4:55 PM, Kenni Lund wrote:
> 2014-04-04 13:45 GMT+02:00 Jean-Yves Avenard <jyavenard at gmail.com>:
>> Hi
>>
>> Le vendredi 4 avril 2014, Kenni Lund <kenni at kelu.dk> a écrit :
>>
>>>
>>>>> FWIW, I have multiple DVB-C MPEG2 channels which are unwatchable due
>>> to pixelation when using the MythTV VDPAU decoder. It plays fine when
>>> using another decoder or using mplayer with VDPAU. I don't know if
>>> you're seeing the same thing, but if I playback an affected recording
>>> with a non-VDPAU decoder profile, seeking will be inaccurate even
>>> though playback is fine.
>>
>>
>> CAN you try this?
>>
>> Go into  setup -> videos -> playback! and edit your vdpau profile! for each
>> entries (there can be two), and in the deinterlacers settings, set them both
>> to none. No deinterlacers at all.
>>
>> The way mythtv uses vdpau is in almost every way identical to how mplayer
>> does it. They share a common code after all..
>>
>> On the other hand, by default mplayer doesn't deinterlace it's input.  So
>> there's a difference right there...
> 
> I've just tested it and setting both the primary and fallback
> deinterlacer to none unfortunately doesn't have any effect on the
> pixelation issue.
> 
> The following sample plays nicely with a non-VDPAU decoder in MythTV
> or in mplayer with VDPAU ("mplayer -vo vdpau -vc ffmpeg12vdpau
> Kanal4_sample_with_playback_issues.mpg"), but doesn't play well in
> MythTV with VDPAU with or without deinterlacers:
> http://dl.dropbox.com/u/87953940/Kanal4_sample_with_playback_issues.mpg
> 
> Best regards
> Kenni

I was unsuccessful, too. I also tried disabling "Deblocking filter" (even though help text indicates it's for H.264 content), "OSD fade", as well as clearing "Custom filters" (used to contain "vdpaucolorspace=auto"). Reverting to "Decoder: Standard" with the above changes restored the ability to playback the problematic content.

Given these results, have we ruled out the NVidia driver as the culprit?

Helen