[FFmpeg-devel] [PATCH] Don't run block_last_index hack for non-MMX code.
Mon May 19 19:39:40 CEST 2008
MMX dct_quantize returns the wrong block_last_index value for
non-zigzag_direct scantables. There is a hack in mpegvideo_enc.c to get
the correct value, but it assumes all non-c dct_quantizers return the
Attached patch should speed up encoding to alternate scantables on
blackfin and altivec, since only the MMX variants seem to return the
Note that I can't test the patch. I'm just suggesting it. It's here for
whoever wants to test, benchmark, and pass it through the review process
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