FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	740f5105d5	swresample: Use double and float for matrixes for best quality and speed Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	30b2611ed3	swresample: Skip over dither steps if dithering scale is 0 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
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(10000tt)', aresample=osr=48000, showcqt=gamma=5" ffplay -f lavfi "aevalsrc='sin(10000tt)', aresample=osr=48000:linear_interp=on, showcqt=gamma=5" ffplay -f lavfi "aevalsrc='sin(10000tt)', 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
Timothy Gu	180f9a0958	all: Make header guard names consistent	9 years ago
Ganesh Ajjanagadde	1bed09a30e	swresample: allow double precision beta value for the Kaiser window 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>	9 years ago
Ganesh Ajjanagadde	ef62f573ca	swresample/swresample_internal: add av_warn_unused_result This will trigger a few warnings that need to be fixed. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>	9 years ago
Carl Eugen Hoyos	a77401e1f7	lswr: Allow 64 channels internally.	10 years ago
Michael Niedermayer	d4325b2fea	swr: Remember previously set int_sample_format from user Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Rob Sykes	c70c6be225	swresample: soxr implementation for swr_get_out_samples() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	cc17b43d8d	swresample: Add swr_get_out_samples() Previous version reviewed-by: Pavel Koshevoy <pkoshevoy@gmail.com> Previous version reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Ganesh Ajjanagadde	196b885a5f	swresample/dither: check memory allocation check memory allocation in swri_get_dither() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	80a28c7509	swresample: Allow reinitialization without ever setting channel layouts	10 years ago
Michael Niedermayer	d7b9cb2f7a	swresample: Allow reinitialization without ever setting channel counts Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	4d00860ac7	swresample: Add prefix to soxr_resampler also move declaration to header Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	b74ecb82fa	swresample/x86/rematrix_init: Check av_malloc* return codes, forward errors Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	9d7ae72725	swresample: Use int instead of enum for fields which are accessed through AVOptions as int Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Reimar Döffinger	6efd0ba977	swresample_internal.h: Move struct declaration before first use. It seems more logical and works with more restricted C compilers like tinycc. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Michael Niedermayer	7c51f5bd39	swr: aarch64 audio_convert and neon clobber test Ported from avresample Code by: Mans Rullgard, Janne Grunau, Martin Storsjo Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	97f8c7a03e	bump libpostproc and libswresample this is needed / avoids some headaches as one of their dependancies (libavutil) was bumped Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Andreas Cadhalpun	39a6e02fd4	fix spelling errors Reviewed-by: Timothy Gu <timothygu99@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
James Almer	42a92a240d	swr: remove obsolete resample prototypes Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Ronald S. Bultje	b785c62681	swr: handle initial negative sample index outside DSP function. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	e2b718464e	swresample: Make rematrix maxvalue user settable Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	4cfc92081d	swr: add native_simd_one Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	8b3affda87	swr: support a seperate output sample bits. This avoids user apps having to mangle dither scale. for pcm24 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	00cae86754	swr: support first_pts Trolled-by: Daemon404 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	db4e0ecaf0	swr: move silence buffer to context to avoid per use malloc/free Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	dc6588421e	swr: move buffer used to discard sample to context This avoids the need to allocate & free to repeatly Fixes Ticket2122 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	e5a736261b	swr: Use a temporary buffer for dither/Noise shaping when the input is read only This avoids copying the input Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	2eec98125e	swr: mark noise data for noise shaping as const Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	558aa6cab7	swr: add seperate in/out pointers to the noise shaping code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	fca51256d4	swr: rename dither_pos to noise_pos THis more closely matches what the field represents Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	ead3a2a37e	swr: add noise_scale field to seperate it from the noise shaping scales Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	6908ded20e	swr: fix the noise sample type for noise shaping Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	3ef06f3415	swr: split swri_dither_init() out Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	3ab1970612	swr: move dither related fields to their own context Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	ba1314c2ef	swr: update copyright years of a few files iam working on Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	82742294b7	swr: Implement Noise shaping dither The following variants are implemented: lipshitz noise shaping dither shibata noise shaping dither low shibata noise shaping dither high shibata noise shaping dither f-weighted noise shaping dither modified-e-weighted noise shaping dither improved-e-weighted noise shaping dither Data tables taken from SOX Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Rob Sykes	8d9a503313	docs: add soxr documentation Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	f9e55c0fed	swr: support -async X as a simple way to do what ffmpeg -async X did Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Rob Sykes	801b315729	swr: Add SOX resampler support Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	ae5a55e77a	swr: move flush into Resampler Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	431dcc49d2	swr: make realloc_audio() available outside swresample.c Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Rob Sykes	5a5d70748c	swr: Add API to make resample engine selectable. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	1acd2f6ba7	Replace rest of libavutil/audioconvert.h with libavutil/channel_layout.h Also remove it in once case when it is not needed. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	d23e8f53ad	swr: use 64bit index/len for x86_64 mix Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	0eebde07a9	ARM: libswresample: NEON optimised flat float to s16 conversion Adapted to swr by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c5278cb84f	Add Dolby/DPLII downmix support to libswresample Based on code by John Stebbins <jstebbins.hb@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	323d912010	swr: update copyright years Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	7e15df7551	swr: resampling: add filter type and Kaiser window beta to AVOptions	13 years ago

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90 Commits (db2a7c947ec28b0a04a4e5193c9b0d33de823fbb)