[mythtv] Working frontend on Mac OS X Intel

[Angel Li]

Todd Ignasiak wrote:
> On 3/16/06, Joe Rumsey <joe at rumsey.org> wrote:
>> I've posted the diff to http://www.mythtv.org/wiki/index.php/
>> Myth_on_Mac_x86
>>
>> There were two problems, neither major.  One was that the Mac code
>> was assuming it could compile for Altivec, even though it didn't
>> require it at runtime.  In the case where it was not even available
>> at compile time, it provided a NULL yuv2vuy decoder function.  This
>> was what caused the crash way down in Quicktime when trying to render
>> video.  Providing it the plain old C function works fine.
>>
>> After that, Audio was messed up, just static.  I took a wild guess
>> that it was an endian issue, looked for "endian" in the Mac audio
>> code, and just removed the flag telling Core Audio that the data was
>> big endian.  It worked!
>>
>> That solved all the major issues, it works great on my new mini now.
>
> I tried your patch last night, built the latest SVN version, and I was
> able to get video on my Mini.   This is a big step forward!
>
> On my system, displaying HD video took more than 100% of one CPU.  
> So, playback was a bit choppy.    I'll try to throw Apple's profiler
> on it, and see where the major cpu drains are.
> _______________________________________________
>
I did a build last night with Joe Rumsey's patch along with the ffmpeg 
patches that deal with OS X's weird/outdated assembler and I'm able to 
play live HD on my MacBook via wireless.

Anyone know if it's safe to turn on the Mac acceleration code?