On Fri, Apr 29, 2011 at 08:17:43PM +0200, Diego Biurrun wrote: > int/unsigned is the natural memory access type for CPUs, using sized types > for temporary variables, counters and similar just increases code size and > can possibly cause a slowdown.
time ./ffmpeg -y -v 0 -dct fastint -i ~/tmp/nctapsa01hi.mpg ~/tmp/foo.avi -vcodec mpeg4 before: real 0m28.784s user 0m28.170s sys 0m0.070s real 0m28.627s user 0m28.160s sys 0m0.120s real 0m28.701s user 0m28.230s sys 0m0.110s after: real 0m28.524s user 0m28.030s sys 0m0.150s real 0m28.692s user 0m28.170s sys 0m0.060s real 0m28.533s user 0m28.070s sys 0m0.150s So it seems there is a slight speedup, if at all... Diego _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
