Author | SHA1 | Message | Date |
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e109c54a69 | swresample/arm: cosmetic fixes | 8 years ago |
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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 |
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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 |
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f6265a5cbc | swresample/arm: add ff_resample_common_apply_filter_{x4,x8}_{float,s16}_neon | 9 years ago |