[mythtv-users] Disabling XvMC for DVD playback using internal player

[Edward Coffey]

>> To use ffmpeg as your decoder for all content less than 720x*, insert
>> a row into settings where value = 'UseXvMCForHDOnly' and data = '1'
>> such as with the following SQL command:
>>
>> INSERT INTO settings (value,data,hostname) VALUES ('UseXvMCForHDOnly',
>> '1', 'yourhost');
>>
>> Naturally, substitute your frontend's host name for 'yourhost'. Be
>> sure your frontend has PreferredMPEG2Decoder set to Standard XvMC.
>
>And in SVN trunk (and, when released, 0.21), there's support for
>complete control over which rendering method is used for playback of
>various types/resolutions of recordings.  For now, though, the
>0.20-fixes-compatible approach that Chad suggested is recommended.  I'm
>just mentioning that it will be officially supported in the future.

Thanks for that - I've enabled UseXvMCForHDOnly and it mostly works.
Unfortunately deinterlacing doesn't work (since my myth-box is set to
use bob-deinterlacing), and that the whole front-end crashes whenever
I go directly from an HDTV station to an SDTV station (haven't had a
chance to check the logs yet). A couple more questions if someone has
the time:

Will 0.21 allow me to use XvMC for all (SD and HD) TV content but not
for DVD playback?
Will 0.21 allow me to use one deinterlacer for TV and a different one for DVD?
In 0.20, is there a deinterlacer that's just as good as bob, but works
without XvMC?