Hi,<br><br>This patch adds Altivec-optimized implementations of
oc_enc_frag_sad and oc_enc_frag_ssd. This patch is against the latest
svn revision of theora-ptalarbvorm. <br><br>Speeds up encode on a plant
stop-motion clip on a 1 GHz PPCÂ 7447 by ~3%, timewise. Time spent in
oc_enc_frag_sad is reduced from 4.2% to 2.3% and oc_enc_frag_ssd from
1.2% to 1.0%, as reported by Shark.<br>
<br>Currently this is only integrated into the Xcode build project and
need support for detecting Altivec on platforms other than OS X; on OS X
it uses the sysctl hw.vectorunit.<br><br>Thanks,<br clear="all">-- vs<br>