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

John reidjr at lineone.net
Sun Aug 15 10:08:00 UTC 2010


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
>> -------------------------------------------+-------------------------------- 
>>
>>       Reporter:  reidjr_at_lineone_dot_net  |       Owner:  janne
>>           Type:  defect                     |      Status:  new
>>       Priority:  minor                      |   Milestone:  unknown
>>      Component:  MythTV - Video Playback    |     Version:  Trunk Head
>>       Severity:  medium                     |    Keywords:  Aspect 
>> Ratio TV
>> Ticket locked:  0                          |
>> -------------------------------------------+-------------------------------- 
>>
>>   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.)
>
> Mike
>
Thanks Mike,

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.

best regards,

John


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