[mythtv] MacOS X MMX yuv420_2vuy Patch

Nigel Pearson nigel at ind.tansu.com.au
Wed Sep 13 23:02:02 UTC 2006

>   I was just surprised that it was not crashing

	I can show you how to patch it back if you like :-)

> After looking at the code a bit closer, I see that the
> 'get_yuv2vuy_conv' function now sets it to a normal C conversion if
> not MMX/Altivec (the old code set it to NULL, and QT crashed).    So,
> in theory, video output should still work without the vector code

	It does. If you happen to compile a non-MMX version,
it will use the normal C version, even if 'Use Vector-Enhanced'
is set. Same thing on a non-G4 PPC Mac.

	The C case is just a default for bad user settings.

Nigel Pearson, nigel at ind.tansu.com.au|     "They did the
Telstra Net. Eng., Sydney, Australia | white man power dance,
Office: 9202 3900    Fax:  9261 3912 |     and ... Shazam"
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