[mythtv-users] pixalated live tv images

[Piotr Oniszczuk]

Peter,
May You look on #mythtv IRC logs at 09:24:08, 31.10.2016
I slightly suspect OP may have the somehow similar type of issue….

> Wiadomość napisana przez Peter Bennett <cats22 at comcast.net> w dniu 01.11.2016, o godz. 20:46:
> 
> On 10/31/2016 07:35 PM, Kevin Johnson wrote:
>> 
>> 
>> On Mon, Oct 31, 2016 at 2:01 PM, Kevin Johnson <iitywygms at gmail.com> wrote:
>> 
>> 
>> On Mon, Oct 31, 2016 at 9:14 AM, Peter Bennett <cats22 at comcast.net> wrote:
>> On 10/31/2016 11:07 AM, Kevin Johnson wrote:
>>> So I guess what is happening is that the underlying “theme layout” is bleeding through to the live tv image. 
>>> I dont know how to exactly explain this. Hopefully what I am saying will make sense to someone???
>>> One other note. Using the normal option under playback instead of vdpau also makes the distortion disappear.
>>> Can I gather more information somehow that might further help figure out what is going on? 
>>> 
>> Which page is "bleeding through"? Is it the On Screen Display, as when you press the info key (I)? I did recently fix a couple of bugs where the On Screen Display was not properly disappearing after being shown.
>> 
>> Have you installed the latest PPA 0.28 version? The one that comes with ubuntu/mythbuntu has a number of problems.
>> It looks like you are using VDPAU playback profile. Can you also try OpenGL playback profile. 
>> Can you let me know which theme painter you are using.You could try QT and OpenGL theme painters and see which is causing the problem. 
>> NOTE you cannot use QT theme painter with OpenGL playback profile. Try other combinations. 
>> Let me know which combinations of playback profile and theme painter cause the problem.
>> 
>> Peter
>> 
>> 
>> 
>> Hi: 
>> Version is.
>> 
>> MythTV Version : v0.28-76-g7f8f168
>> MythTV Branch : fixes/0.28
>> Network Protocol : 88
>> Library API : 0.28.20160309-1
>> QT Version : 5.5.1
>> 
>> Do I need to update before I try other things?
>> 
>> If not, I will try several combinations of playback profiles and qt/opengl tomorrow after I get back home.
>> I do know that I tried slim, normal and high quality vdpau.  None made a difference.
>> 
>> Yes, it is mostly in the area that pops up on screen when you hit info.   
>> 
>> Using OpenGl High Quality.  The distortion does not appear.  Using QT or OpenGL Painter.
>> Using Vdpau slim, normal or high the distortion does appear using either QT or OpenGL painter,
>> 
>> This only occurs on 720p resolution.
>> 
>> Here is a link to a pic showing the distortion.
>> http://i193.photobucket.com/albums/z161/dabears_rule/IMG_20161031_163247.jpg
>> 
>> Please let me know if I can offer more info.
>> 
>> 
> I looked at the picture and I see some white marks that appear in certain dark places on the screen. Is this what you refer to? It does not look like any theme layout. Which part of the theme layout does this look like to you? If you have "bleed through" you would see the "Please Wait" message showing through (on Mythcenter wide or Steppes), or whatever is used on your theme just before a video starts playing. That is the background over which the video is painted.
> 
> It seems to be some sort of VDPAU problem. There are some troubleshooting tips in the wiki.
> https://www.mythtv.org/wiki/VDPAU
> Did you disable "composite"? I always need to do that, but it normally fixes tearing, not white flecks.
> 
> Do the white marks stay where they are on the picture or move around?
> 
> Most 720p broadcasts are 60fps. Maybe it is the 60fps causing the problem rather than the 720p size.
> 
> A work-around that you could use is to set up a new playback profile that uses OPENGL settings for 720 rows and VDPAU for higher resolutions.
> 
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