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path: root/libswresample/options.c
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* swresample/swresample: add a used channel layout option using the new APIJames Almer2023-02-191-2/+4
| | | | | | Replaces the "used channel count" option, which is now deprecated. Signed-off-by: James Almer <jamrial@gmail.com>
* swresample: convert to new channel layout APIJames Almer2022-03-151-8/+25
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/avcodec: Stop including channel_layout.h in avcodec.hAndreas Rheinhardt2021-07-221-0/+1
| | | | | | Also include channel_layout.h directly wherever used. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* swresample/options: enable linear_interp and exact_rational by defaultMuhammad Faiz2017-03-171-2/+2
| | | | | | better quality without speedloss Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
* swresample: Skip over dither steps if dithering scale is 0Michael Niedermayer2016-08-181-1/+1
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* swresample: add exact_rational optionMuhammad Faiz2016-06-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* swresample: use AV_OPT_TYPE_BOOL for linear_interp and cheby optionsClément Bœsch2015-12-041-2/+2
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* swresample: allow double precision beta value for the Kaiser windowGanesh Ajjanagadde2015-11-081-1/+1
| | | | | | | | | | | | | Kaiser windows inherently don't require beta to be an integer. This was an arbitrary restriction. Moreover, soxr does not require it, and in fact often estimates beta to a non-integral value. Thus, this patch allows greater flexibility for swresample clients. Micro version is updated. Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com> Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
* swr: do not reject channel layouts that use channel 63wm42015-10-281-4/+4
| | | | Channel layouts are essentially uint64_t, and every value is valid.
* doc/resampler, swresample/options: use proper capitalizationGanesh Ajjanagadde2015-10-101-7/+7
| | | | | | | | | | | | | | Proper names should be capitalized in all user facing API as far as possible. The option names themselves have not been changed since: 1. We consistently keep option names in lower case. 2. Changing them would break existing scripts. 3. I suspect that we want to be similar to Sox and its relevant options. The converse is also true: improper names should not be capitalized generally. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* swr: Remember previously set int_sample_format from userMichael Niedermayer2015-06-221-2/+2
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* swresample: Allow reinitialization without ever setting channel layoutsMichael Niedermayer2015-04-121-4/+4
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* swresample: Allow reinitialization without ever setting channel countsMichael Niedermayer2015-04-121-6/+6
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* swresample: split option table to a separate fileTimothy Gu2014-07-061-0/+155
Signed-off-by: Timothy Gu <timothygu99@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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