[FFmpeg-devel] libavcodec/exr : add SSE2 simd for reorder pixels (WIP)

Martin Vignali martin.vignali at gmail.com
Sat Aug 5 23:48:17 EEST 2017


Based on pull request in the official openexr library :

i try to port the reorder part (used in zip and rle decompression), to asm
Tested on OS X
pass fate test for me

I test with this command :
./ffmpeg -i ./fate-suite/exr/rgba_slice_zip16.exr -f null -;./ffmpeg -i
./fate-suite/exr/rgba_slice_zip16.exr -f null - -cpuflags 0

the result of the timer are :
scalar : 960355 decicycles in reorder_pixels_zip,      64 runs,      0 skips
sse :       84763 decicycles in reorder_pixels_zip,      64 runs,      0

Comments Welcome

Jokyo Images
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