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FFmpeg/libswresample

History

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
..
aarch64	…
arm	swresample: add exact_rational option	9 years ago
x86	swresample: add exact_rational option	9 years ago
Makefile	…
audioconvert.c	…
audioconvert.h	all: Make header guard names consistent	9 years ago
dither.c	…
dither_template.c	swresample/dither_template: Add missing license header	9 years ago
libswresample.v	…
log2_tab.c	…
noise_shaping_data.c	…
options.c	swresample: add exact_rational option	9 years ago
rematrix.c	swresample/rematrix: Use clipping s16 rematrixing if overflows are possible	9 years ago
rematrix_template.c	swresample/rematrix: Use clipping s16 rematrixing if overflows are possible	9 years ago
resample.c	swresample: add exact_rational option	9 years ago
resample.h	swresample: add exact_rational option	9 years ago
resample_dsp.c	swresample/arm: add ff_resample_common_apply_filter_{x4,x8}_{float,s16}_neon	9 years ago
resample_template.c	swresample: add exact_rational option	9 years ago
soxr_resample.c	swresample: add exact_rational option	9 years ago
swresample-test.c	all: add const-correctness to qsort comparators	9 years ago
swresample.c	swresample: add exact_rational option	9 years ago
swresample.h	doc/resampler, swresample/options: use proper capitalization	9 years ago
swresample_frame.c	…
swresample_internal.h	swresample: add exact_rational option	9 years ago
swresampleres.rc	…
version.h	swresample: add exact_rational option	9 years ago