[MPlayer-dev-eng] [PATCH] fast linear resample in af_resample
Balatoni Denes
pnis at coder.hu
Wed Nov 20 19:29:32 CET 2002
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Hi Anders (and everybody)!
I attempted to fix the sample omition, and I put everything in af_resample.
If you notice anything stupid, or have comments do tell me!
btw: here are 3 benchmarks (normal, sloppy, fast) on my zaurus /w intel
sa-1100. Fast is 140% faster, but it is still just 3.5 % cpu improvement - but
an improvement none the less. Also with sloppy it takes 3 secs to build
filter, with normal it takes 70 secs, with fast 0 :)
Building audio filter chain for 11127Hz/1ch/8bit -> 44100Hz/2ch/16bit...
BENCHMARKs: VC: 0.431s VO: 0.604s A: 2.149s Sys: 26.506s = 29.690s
BENCHMARK%: VC: 1.4531% VO: 2.0329% A: 7.2378% Sys: 89.2762% = 100.0000%
BENCHMARKn: disp: 241 (8.12 fps) drop: 0 (0%) total: 241 (8.12 fps)
BENCHMARKs: VC: 0.423s VO: 0.604s A: 1.714s Sys: 27.029s = 29.770s
BENCHMARK%: VC: 1.4210% VO: 2.0293% A: 5.7563% Sys: 90.7935% = 100.0000%
BENCHMARKn: disp: 241 (8.10 fps) drop: 0 (0%) total: 241 (8.10 fps)
BENCHMARKs: VC: 0.422s VO: 0.600s A: 0.704s Sys: 28.268s = 29.995s
BENCHMARK%: VC: 1.4085% VO: 2.0006% A: 2.3484% Sys: 94.2426% = 100.0000%
BENCHMARKn: disp: 241 (8.03 fps) drop: 0 (0%) total: 241 (8.03 fps)
bye
Denes
- --
"Use the source Luke !"
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