- Mar 21, 2017
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James Almer authored
Fixes memleak. Reviewed-by:
wm4 <nfxjfg@googlemail.com> Reviewed-by:
Michael Niedermayer <michael@niedermayer.cc> Signed-off-by:
James Almer <jamrial@gmail.com>
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James Almer authored
Also make it more readable while at it. Signed-off-by:
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- Mar 19, 2017
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Muhammad Faiz authored
benchmark: sse2 10.670s avx 8.763s fma3 8.380s Signed-off-by:Muhammad Faiz <mfcc64@gmail.com>
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- Mar 18, 2017
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Muhammad Faiz authored
use fltp when doing s32 -> s32 resampling because s32p has no simd optimization benchmark: old 17.913s new 7.584s (use fma3) Reviewed-by:
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- Mar 17, 2017
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Muhammad Faiz authored
when set_compensation is called with zero sample_delta, compensation does not happen (because dst_incr == ideal_dst_incr) but compensation_distance is set regression since 01ebb57c Found-by:
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- Mar 16, 2017
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Muhammad Faiz authored
better quality without speedloss Signed-off-by:
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- Mar 12, 2017
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Muhammad Faiz authored
so tsf option in aresample will have effect previously tsf/internal_sample_format had no effect fate is updated s32p previously used fltp internally dblp previously used fltp/dblp internally Reviewed-by:
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- Mar 09, 2017
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Muhammad Faiz authored
except filter_length == 1 odd filter_length gives worse frequency response, even when compared with shorter filter_length also makes build_filter simpler Reviewed-by:
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- Mar 08, 2017
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Muhammad Faiz authored
this gives better frequency response update swresample fate and other fates that depend on resampling Signed-off-by:
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- Feb 25, 2017
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Carl Eugen Hoyos authored
Fixes undefined behaviour and a gcc warning: libswresample/rematrix.c:376:47: warning: iteration 64 invokes undefined behavior
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- Feb 16, 2017
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Matthieu Bouron authored
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- Jan 13, 2017
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Matthieu Bouron authored
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Matthieu Bouron authored
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- Dec 13, 2016
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Muhammad Faiz authored
integrate it inside multiple_resample allow some calculations to be performed outside loop Suggested-by:
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Muhammad Faiz authored
This should fix Ticket6012 Reviewed-by:
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- Dec 10, 2016
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Michael Niedermayer authored
This is faster 2871 -> 2189 cycles for int16 matrixbench -> 23456hz Fixes a integer overflow in a artificial corner case Fixes part of 668007-media Found-by:
Matt Wolenetz <wolenetz@google.com> Signed-off-by:
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Michael Niedermayer authored
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Michael Niedermayer authored
Fixes undefined operation Fixes part of 668007-media Found-by:
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- Dec 03, 2016
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Muhammad Faiz authored
Reviewed-by:
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- Nov 25, 2016
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Muhammad Faiz authored
give very bad quality for soxr resampler. linear_interp is intended for using linear interpolation between filter bank so quality will be better. i guess this is misunderstood as 'do not use filter bank, but directly interpolate linearly between samples'. Reviewed-by:
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- Nov 24, 2016
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Muhammad Faiz authored
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:
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- Oct 26, 2016
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Michael Niedermayer authored
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Michael Niedermayer authored
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Vodyannikov Aleksandr authored
Fixes Ticket #5897. Signed-off-by:
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- Oct 18, 2016
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Muhammad Faiz authored
return AVERROR code on error Signed-off-by:
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- Sep 27, 2016
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Michael Niedermayer authored
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Michael Niedermayer authored
API and Doxy documentation is taken from avresample_build_matrix() Fixes: Ticket5780 Signed-off-by: -
Michael Niedermayer authored
Signed-off-by:
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- Aug 18, 2016
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Paul B Mahol authored
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Michael Niedermayer authored
Signed-off-by: -
Michael Niedermayer authored
Signed-off-by:
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- Aug 03, 2016
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Timothy Gu authored
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- Jun 22, 2016
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Clément Bœsch authored
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- Jun 20, 2016
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Muhammad Faiz authored
phase_shift and phase_mask is removed generally exact_rational=on is faster than exact_rational=off Signed-off-by:
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- Jun 17, 2016
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Muhammad Faiz authored
high phase_count is only useful when dst_incr_mod is non zero in other word, it is only useful on soft compensation on init, it will build filter with low phase_count but when soft compensation is enabled, rebuild filter with high phase_count this approach saves lots of memory Reviewed-by:
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Muhammad Faiz authored
because exact_rational does not guarantee that phase_count is even Reviewed-by:
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- Jun 13, 2016
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Muhammad Faiz authored
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:
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- May 16, 2016
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Michael Niedermayer authored
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- May 15, 2016
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Michael Niedermayer authored
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Michael Niedermayer authored
This fixes the sum of the integer coefficients ending up summing to a value larger than the value representing unity. This issue occurs with qN0.dts when converting to stereo Signed-off-by:
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