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${ noResults }
9 Commits (520c0736fd2079f04a2a0ba09562bae49f62f472)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Muhammad Faiz
|
06f94149c6 |
swresample/resample: optimize exact_rational=on:linear_interp=on case
separate dsp.resample to dsp.resample_common and dsp.resample_linear
and choose to call faster resample_common even when linear_interp=on
when c->frac and c->dst_incr_mod are both zero
speed up resampling when exact_rational and linear_interp are both
enabled because exact_rational force c->frac and c->dst_incr_mod to
be zero when soft compensation does not happen
benchmark on exact_rational=on:linear_interp=on
old new
real 8.432s 5.097s
user 7.679s 4.989s
sys 0.125s 0.107s
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
|
8 years ago |
|
Muhammad Faiz
|
b8c6e5a661 |
swresample: add exact_rational option
give high quality resampling
as good as with linear_interp=on
as fast as without linear_interp=on
tested visually with ffplay
ffplay -f lavfi "aevalsrc='sin(10000*t*t)', aresample=osr=48000, showcqt=gamma=5"
ffplay -f lavfi "aevalsrc='sin(10000*t*t)', aresample=osr=48000:linear_interp=on, showcqt=gamma=5"
ffplay -f lavfi "aevalsrc='sin(10000*t*t)', aresample=osr=48000:exact_rational=on, showcqt=gamma=5"
slightly speed improvement
for fair comparison with -cpuflags 0
audio.wav is ~ 1 hour 44100 stereo 16bit wav file
ffmpeg -i audio.wav -af aresample=osr=48000 -f null -
old new
real 13.498s 13.121s
user 13.364s 12.987s
sys 0.131s 0.129s
linear_interp=on
old new
real 23.035s 23.050s
user 22.907s 22.917s
sys 0.119s 0.125s
exact_rational=on
real 12.418s
user 12.298s
sys 0.114s
possibility to decrease memory usage if soft compensation is ignored
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
|
9 years ago |
Matthieu Bouron
|
f6265a5cbc |
swresample/arm: add ff_resample_common_apply_filter_{x4,x8}_{float,s16}_neon
|
9 years ago |
Reimar Döffinger
|
e535897fad |
Fix libswresample compilation with Apple Neon assembler.
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at> |
11 years ago |
Martin Storsjö
|
3dd04cbcf7 |
swresample: Add arm&x86 clobber tests
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
11 years ago |
Michael Niedermayer
|
d18706244f |
audioconvert/arm: require alignment of 16
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
Mans Rullgard
|
7e3208a087 |
ARM: libswresample: NEON optimised generic fltp to s16 conversion
Adapted to swr by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
|
Mans Rullgard
|
5dc7363446 |
ARM: libswresample: NEON optimised stereo fltp to s16 conversion
Adaption to swr by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
|
Mans Rullgard
|
0eebde07a9 |
ARM: libswresample: NEON optimised flat float to s16 conversion
Adapted to swr by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |