#5569: POWER8 VSX vectorization libswscale/output.c
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Reporter: edelsohn | Owner:
Type: enhancement | Status: open
Priority: wish | Component: swscale
Version: git-master | Resolution:
Keywords: bounty vsx | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by cand):
PPC output.c coverage now exceeds x86. Speedups 4-16x, usually in line
with x86, sometimes faster, sometimes a bit slower. Two functions only got
2x, but so did their x86 equivalents, and in those cases the C version
uses a LUT, making it not as directly comparable.
Some rarely used pixfmts were not vectorized (things like 2/3/3 bit
packed), but no other platform accelerates them either. Are those
important for IBM, or is matching x86 the target?
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Ticket URL: <https://trac.ffmpeg.org/ticket/5569#comment:6>
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