[PD] PDP and quicktime pdp_qt
Mathieu Bouchard
matju at artengine.ca
Tue Apr 18 23:55:57 CEST 2006
On Tue, 18 Apr 2006, Patrick Pagano wrote:
> ...another thing to note is that no matter what you use, you will get
> better performance if your movies have dimensions that are multiples of
> 16, like 320x240, 640x480, 336x224, etc...this will ensure the altivec
> path, and generally makes the cpu and memory managers much happier...
I think that this only applies to bytes/row, so the height may be
anything, and then, there are special exemptions for width: for YUV422 it
has to be multiple of 8 and for RGBA it has to be multiple of 4.
_ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada
More information about the Pd-list
mailing list