New submission from Michael Niedermayer <[EMAIL PROTECTED]>:

Motion compensation in snow currently calculates the halfpel points as well as
the quarter pel points for each block
due to the overlapped blocks, and not zero length of the filters this can lead
to the halfpel points being calculated 4 times
its possible to simply calculate the halfpel points per image, and from them the
quarterpel points per block, dirac and x264 do it and its faster, we should as 
well!

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messages: 659
nosy: michaelni
priority: normal
status: open
substatus: open
title: Optimize snow halfpel interpolation
topic: avcodec, optimization
type: feature_request

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FFmpeg issue tracker <[EMAIL PROTECTED]>
<https://roundup.mplayerhq.hu/roundup/ffmpeg/issue183>
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