[mythtvnz] High CPU usage decoding 720p

[Craig Whitmore]

>
> ----- Original Message Follows -----
>> You could try building ffmpeg with the cabac patch which
>> allows threading of this portion of the decoding process.
>> It's not yet in ffmpeg mainline, as there are possible
>> issues with some types of options (MBAFF I think - not
>> sure if this will affect NZ freeview transmissions)

mythtv (even fixes-0.21) has problems with NZ's DVB-T as you get lots of:

h264 @ 0x86a46b0]Interlaced pictures + spatial direct mode is not 
implemented

error messages becuase of the MBAFF encoded h264.  mythtv uses its own 
internal version of ffmpeg which won't get updated for a while etc so  I 
dunno a way to use an external version (like mplayer's version etc)
I have an AMD 4800+ and get about the same. I still can't get the AAC audio 
working on TV1, but I'l keeping at it when I get time.

Thanks
Craig