[mythtvnz] Freeview|HD - anyone tried a Mac?

[Steven Ellis]

On 25/08/2008, at 12:33 PM, Wade Maxfield wrote:

> Nick Rout wrote:
>>
>>
>> Yeah I figured that would be the case with linux, but I had hoped  
>> Apple
>> might allow some sort of open api to the hardware decoding through  
>> a OSX
>> API. Pipe dream I guess, knowing apple!
>>
>>
>
> Someone like Nigel or Daniel K, or one of the Devs who have been  
> looking
> at the Mac OS X side of things would have a more definitive answer on
> what APIs Apple might have published. There appears to be something
> called DVDV that uses the mac hardware for accelerating some  
> functions.
>  It looks like it's part of VID-fixes branch.


I'm currently running a mix of Linux and OS-X on a 2.4 GHz MacBook  
with integrated Intel graphics.

Now in theory the Intel chipset can do some minor acceleration of H. 
264 but it doesn't appear that any third party applications currently  
make use of it. I've been playing with EyeTV to compare video output  
quality with MythTV, and also look at CPU load. The EyeTV H.264 codes  
does utilise both core's in the MacBook which is good as on TVOne/2 it  
can use over 70% on both cores, and TV3 well over 80% of both cores.  
Hence my assumption is that their decoder is currently software based.

I tried exporting a recording into a file format that Quicktime  
supports to see if it will do HW acceleration, but I just get a green  
video window.

Steve

Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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