[mythtv-users] Fwd: Re: V31 High Quality Software Deinterlacing (not fixed)

[jksjdevelop]

On 29/03/2020 13:20, John Pilkington wrote:
> On 29/03/2020 12:21, John wrote:
>> since updating from v31-Pre-1967-gc3d433f7a2 to v31-Pre-2036-g76fedd7758
>>
>> High quality software de-interlacing is causing me audio sync issues
>>
>> Using the same settings for video profile ie just changing the 
>> version of mythtv - not touching the profile
>>
>> v31-Pre-1967-gc3d433f7a2
>>
>>   mythvideoout.cpp:393 (SetDeinterlacing) VideoOutput: 
>> SetDeinterlacing (Doublerate 1): Single High|CPU|GLSL Double High|CPU
>>
>> v31-Pre-2036-g76fedd7758
>>
>> mythvideoout.cpp:393 (SetDeinterlacing) VideoOutput: SetDeinterlacing 
>> (Doublerate 1): Single High|CPU|GLSL|DRIVER Double High|CPU|GLSL|DRIVER
>>
>>
>> How do I get the newer version to use Single High|CPU|GLSL Double 
>> High|CPU which works.
>>
>> By the same token how do you return a video profile to default. ie if 
>> you delete all custom settings does it return to default or just stop 
>> working.
>
> I suppose the trouble there is that 'default' has been changing - 
> frequently; the code will define it at each stage, and if you want 
> something different you need to use the setup options (?)
>
Thanks for the response. I fixed it by clearing the Prefer OpenGL 
deinterlacers check box.

This gave me

mythvideoout.cpp:393 (SetDeinterlacing) VideoOutput: SetDeinterlacing 
(Doublerate 1): Single High|CPU Double High|CPU

which works great.

I have no idea whether I have set that flag myself or if its the default 
setting in the OpenGL High Quality profile, hence my query on how to get 
one of these provided profiles back to its defaults.
==================
Update - seemed OK but isnt, Audio sync can randomly go completely out 
by several seconds.
Have to go back to VDPAU which unfortunately has panning issues on some 
low bit rate HD channels.