H.264 codec and optimization issues

Dear All

Please have a look at the following paper "Implementation of H.264 decoder on general-purpose processors with media instructions" which is available at

http://www.ee.princeton.edu/~ykchen/publications/H264.html

This paper talks about several modules in the JVT codec and there is an interesting discussion about the implementation and optimization of the inverse transform using shifts and adds only. In the end, for an SSE/SSE2 or even MMX implementation, using shifts and adds may not be very optimal!

 

Cheers,
Indrajit

 



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