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>		2016-06-13 12:36:01 +07:00
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audio_convert_init.c
audio_convert_neon.S	Fix libswresample compilation with Apple Neon assembler.	2014-02-17 17:40:10 +01:00
Makefile	swresample/arm: add ff_resample_common_apply_filter_{x4,x8}_{float,s16}_neon	2016-05-13 21:13:46 +02:00
neontest.c	swresample: Add arm&x86 clobber tests	2014-01-18 18:38:57 +01:00
resample_init.c	swresample: add exact_rational option	2016-06-13 12:36:01 +07:00
resample.S	swresample/arm: add ff_resample_common_apply_filter_{x4,x8}_{float,s16}_neon	2016-05-13 21:13:46 +02:00