[mythtv-users] 2010 Mac mini: no go! (Nvidia MCP89 SATA issues)

[Scott D. Davilla]

>  > For those of us OSX'ers who may be looking at some new hardware soon,
>>  would it be possible to get you to elaborate on "yet"? i.e. do you
>>  expect to see support in the next release or two,
>
>Apple added an API in Mac OS X 10.6.3 to make it possible, and folks
>are aware of it, but nobody has yet committed to doing the work. As
>Scott alluded to, xbmc trunk has recently added support for it. No
>clue what's involved in adding it to MythTV.
>
>>  and would that
>>  support work with the previous generation mini (9400M) or just the
>>  latest 320M?
>
>Both. (Also appears to work on the 9600M GT in my MacBook Pro, unless
>the 9400M is silently kicking in w/o my knowledge).

It's a dead simple API, detect h.264, if in byte-stream format 
(ffmpeg extradata stuff), convert to avcC and pump it in. picture 
frames come out as 2vuy. See 
http://trac.xbmc.org/browser/trunk/xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecVDA.cpp

The only real issue is you will need to link to 
VideoDecodeAcceleration.framework unless MythTV supports dynamic 
loading.