[mythtv] [mythtv-commits] Ticket #8775: Forced display aspect setting not honored in TV recording playback

[John]

On 21/08/10 14:14, John wrote:
> On 15/08/10 14:09, Michael T. Dean wrote:
>>  On 08/15/2010 06:08 AM, John wrote:
>>> On 13/08/10 23:15, Michael T. Dean wrote:
>>>>  On 08/13/2010 09:01 AM, MythTV wrote:
>>>>> #8775: Forced display aspect setting not honoured in TV recording 
>>>>> playback
>>>>>
>>>>>
>>>>>   I have a 720x576 modeline on a PAL 16:9 TV. By default myth 
>>>>> treats this as
>>>>>   a 4:3 display. To overcome this I use the "Seperate modes for 
>>>>> gui and
>>>>>   video" options, and set :
>>>>>    Gui 720x576 video 720x576 auto 16:9
>>>>>
>>>>>   and an Override mode for US content of:
>>>>>    Gui 720x480 video 720x480 auto 16:9
>>>>>
>>>>>   with these setting the display is treated as 16:9 for PAL LiveTV 
>>>>> playback,
>>>>>   or PAL/NTSC MythVideo content.  Playing any Recorded TV ( I only 
>>>>> have PAL
>>>>>   to test) treats the display as 4:3.
>>>>>
>>>>>   If in "Screen Settings" I '''also''' Set the GUI size to 
>>>>> 720x576, and
>>>>>   check "Use Gui Size for TV playback", the 16:9 aspect ratio is 
>>>>> honored in
>>>>>   recorded TV.
>>>>
>>>> MythTV uses the X configuration to find the aspect ratio of the 
>>>> display.  You need to configure X properly to use a non-square 16:9 
>>>> display.
>>>>
>>>> http://www.mythtv.org/wiki/Display_Size
>>>>
>>>> and, especially,
>>>>
>>>> http://www.mythtv.org/wiki/Display_Size#Calculating_your_own_values
>>>>
>>>> (And if you're using Xinerama or similar, you'll have a Monitor 
>>>> aspect ratio setting in frontend settings under Appearance Settings 
>>>> that must be specified properly.)
>>>
>>> Done this before, (long time user) and read the wiki entry.
>>> I am using a nvidia card and changing modes based on content, so 
>>> using the settings as described above, which I assume is what you 
>>> mean by "you'll have a Monitor aspect ratio setting in frontend 
>>> settings under Appearance Settings that must be specified properly.) "
>>> The ticket was pointing out that the "Separate modes for GUI and 
>>> video" is inconsistent. If you use it to force aspect ratio, then it 
>>> works for livetv, but does not affect recorded playback, thats not a 
>>> feature, its a bug.
>>>
>>> Personally I would like to see the mythtv and plugins use a single 
>>> consistent value to define aspect ratio, rather than messing with X, 
>>> including for instance mythgallery.
>>
>> John,
>>
>> The part I'm concerned about is the part where you say, "I have a 
>> 720x576 modeline on a PAL 16:9 TV. By default myth treats this as a 
>> 4:3 display."  So, I'd just like to verify your system configuration, 
>> which will make it much easier to duplicate the issue.  Can you 
>> please post the output (~/settings.txt) of:
>>
>> xdpyinfo 2>&1 | tee ~/settings.txt &&
>> cat<< "EOF" | mysql -umythtv -p mythconverg 2>&1 | tee -a ~/settings.txt
>> SELECT * FROM settings WHERE value IN ('AspectOverride', 'Zoom', 
>> 'GuiWidth', 'GuiHeight', 'GuiSizeForTV', 'UseVideoModes', 
>> 'GuiVidModeResolution', 'XineramaScreen', 'XineramaMonitorAspectRatio');
>> SELECT * FROM settings WHERE value LIKE 'TVVidModeResolution%';
>> SELECT * FROM settings WHERE value LIKE 'TVVidModeForceAspect%';
>> SELECT * FROM settings WHERE value LIKE 'VidMode%';
>> EOF
>>
>> Thanks,
>> Mike
>> _______________________________________________
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>> mythtv-dev at mythtv.org
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>>
> Mike,
>
> Sorry couldn't get back to this till the weekend.
>
> Attached output. My backend is cleverly called mythtv, and my TV 
> attached frontend is antec. At the moment with these settings ( 
> 720x576 Modeline and aspect ratio override ) I get the desired 
> behaviour in both live and recorded TV. ( because I have been fiddling 
> with it since I first posted). However mythgallery assumes 4:3.
>
>
> I also tried the same on my desktop, and the thing that seems to force 
> the effect I am seeing is when GUI size is different from the screen 
> resolution. This time the frontend is dell.
>
> The setup is a little artificial to make the point. I use aspect 
> overide to force 4:3, and restrict the GUI to 1024x576 on a 1680x1024 
> res screen. Video playback is at screen res. This shows that Livetv 
> honors 4:3 (so the video ;looks wrong ) where as recorded playback 
> treats the display as 16:10, and it looks right. Mythgallery of course 
> ignores these settings, and displays within the gui window, at the 
> same aspect ratio as the gui.
>
>  So the original problem I had is not bothering me now, but to be 
> honest, if it did, I wouldnt remember how to fix it in a couple of 
> weeks. I guess my main point was that the normal user rather than 
> enthusiast ( I am the latter) would like to set resolution, aspect 
> ratio, and suitable font size once, and "it just works" :-)
>
> Thank you for the help,
edited: as post too long.


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