I restarted hacking ffmpeg to have it better optimized on linux/ppc. I added a missing bit in h264 and workarounded the hadamard code since it builds fine with gcc-4.1 and w/out hand made reg allocation builds on gcc-3.4 too (thanks to Alan Curry for testing and benchmarking), hopefully encoding will take less time.

On other news I'm trying to get the snow wavelet codec bearable adding altivec optimization, so far vertical and horizontal compose are complete, now I have to hack my way through inner_add_yblock (and that one looks but annoying).
This work is based on the mmx/sse2 patch made by Robert and Oded, that's why it took just a day to be complete.

The next week I'll hopefully look at h264 again since looks like there is still room for improvements.