[x264-devel] What about optimization based on Intel SSE4.1

[Tomas Carnecky]

Jean-Pierre MORARD wrote:
> Dear all,
> 
> "There are 14 video-oriented instructions for accelerating subpixel 
> filtering, search, and 4x4 SAD (sum of absolute differences—a 
> performance-critical part of H.264 encoding)" - source: 
> http://arstechnica.com/news.ars/post/20070417-intel-details-penryn-performance-sse4.html
> 
> Is there already someone working on that optimization ?

I don't think so, but search the archives, IIRC there have been some 
discussions about the advantages/disadvantages of sse4.

http://mailman.videolan.org/pipermail/x264-devel/2008-January/003955.html

tom