MrBesen/ffmpeg
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151 Commits

Author SHA1 Message Date
Michael Niedermayer
f284e2a58a swresample: factorize clear_context() out 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-22 21:36:30 +01:00
Stefano Sabatini
334e2e2363 lavu,lavc,lswr: do not hardcode AV_SAMPLE_FMT_NB value when setting sample format max value 
The constant may change in libavutil but the library may be compiled
against an older version, thus rejecting a value which is otherwise
supported by the new libavutil.

INT_MAX is used here to denote the max allowed value for a sample format.

The opt-test code is changed to provide a valid reference example.
 2013-12-26 11:35:27 +01:00
Michael Niedermayer
a6af5da7a2 swresample: use the internal buffer for resampling the last few samples 
Fixes out of array read
Fixes Ticket3193

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-04 20:40:42 +01:00
Stefano Sabatini
904c89ac1b lswr/swresample: convert ocl and icl options to AV_OPT_TYPE_CHANNEL_LAYOUT 
Improve interface flexibility. In particular makes it possible to set
channel layout through symbolic names using the av_opt_set() interface.
 2013-10-17 18:09:54 +02:00
Michael Niedermayer
9078b40d35 swresample: replace 2 av_free() by av_freep() 
avoids leaving stale pointers in memory

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-09-16 22:44:15 +02:00
Michael Niedermayer
e2b718464e swresample: Make rematrix maxvalue user settable 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-22 03:23:54 +02:00
Timothy Gu
a9bbf59be7 cosmetics: Fix "dont" "wont" "doesnt" typos 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-29 02:31:16 +02:00
Michael Niedermayer
3289670142 swr: dont treat 32 and 24 as equal in simple copy check 
Fixes dithering from 32 to 24 bit

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-05 03:06:34 +02:00
Paul B Mahol
0804171104 swresample: set flags & description and add documentation for output_sample_bits 
Allows users to actually use such option.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-06-04 21:57:25 +00:00
Michael Niedermayer
495bf1b685 swr: Fix dithering of s16 with SIMD 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-04 23:50:45 +02:00
Michael Niedermayer
35aaa306ac swr: make the default of nopts for first_pts actually work 
Fixes Ticket2210

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-25 04:39:26 +01:00
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>
 2013-02-24 20:31:56 +01:00
Michael Niedermayer
2abbe6d07a swr: add duplicate cutoff for compatibility 
Based on
	commit 50f4337a2f
	Author: Justin Ruggles <justin.ruggles@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-24 20:31:56 +01:00
Michael Niedermayer
21cd905cd4 swr: check channel layouts before using them. 
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-13 17:50:24 +01:00
Michael Niedermayer
b5f544a0f9 swr: Dont use floats for S32->S32 when possible 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-04 04:11:46 +01:00
Michael Niedermayer
be989f9236 swr: reorder init code to make rematrix status available earlier 
This also makes some other fields available earlier which may
be usefull one day

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-04 04:05:59 +01:00
Michael Niedermayer
167af704ea swr: limit phase_shift to a less insane value. 
This prevents potential crashes and out of memory issues if
the user manually sets such insane values.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-27 05:54:52 +01:00
Michael Niedermayer
00cae86754 swr: support first_pts 
Trolled-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-21 00:52:14 +01:00
Michael Niedermayer
d676598f87 swr: fix handling of timestamps that cause multiple drops or silence injections 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-13 18:39:06 +01:00
Michael Niedermayer
a34aee4646 swr: limit buffer size for silence injection 
This reduces memory usage for unreasonable large silence injections

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-13 16:04:41 +01:00
Michael Niedermayer
b481d09bd9 swr: limit buffer size for discarding. 
This prevents insane memory usage in case of insane input values.
Untested due to lack of a testcase that causes such insane allocation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-13 16:04:41 +01:00
Michael Niedermayer
db4e0ecaf0 swr: move silence buffer to context to avoid per use malloc/free 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-13 15:28:00 +01:00
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>
 2013-01-13 15:28:00 +01:00
Michael Niedermayer
a74548521b swr: check that allocation of in/out_convert succeeded 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-10 20:27:07 +01:00
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>
 2013-01-10 18:51:30 +01:00
Michael Niedermayer
558aa6cab7 swr: add seperate in/out pointers to the noise shaping code 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-10 18:06:19 +01:00
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>
 2013-01-10 18:01:26 +01:00
Michael Niedermayer
6908ded20e swr: fix the noise sample type for noise shaping 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 23:28:09 +01:00
Michael Niedermayer
3ef06f3415 swr: split swri_dither_init() out 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 23:28:08 +01:00
Michael Niedermayer
8514d5bcf7 swr: remove unused variable 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 18:41:40 +01:00
Michael Niedermayer
3ab1970612 swr: move dither related fields to their own context 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 18:41:12 +01:00
Michael Niedermayer
ba1314c2ef swr: update copyright years of a few files iam working on 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 18:30:01 +01:00
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>
 2013-01-09 18:25:06 +01:00
Michael Niedermayer
f3c9d8d41b swr: use SIMD for dithering 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-09 02:05:35 +01:00
Michael Niedermayer
9aec63af9b swr: fix assertion failure if dither is used without the preout buffer differing from in 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-08 20:07:16 +01:00
Alexander Strasser
ac25b31ede lswr: Improve default resampler's default parameters 
After making some blind tests on a small collection of music
samples for home usage. It turned out that the default cutoff
was too low.

The impact of filter_size was not clearly distinguishable (the
results were on the edge) with the music samples but turned out
to be clearly audible in some synthetic samples.

Thanks to Daniel for helping out with the listening tests.

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
 2013-01-04 16:47:57 +01:00
Nicolas George
5f12d5ad78 lswr: improve rematrixing error message. 
Report channel layout/count for insufficiently determined
rematrixing.
 2012-12-31 18:43:04 +01:00
Rob Sykes
8d9a503313 docs: add soxr documentation 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-27 12:13:17 +01:00
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>
 2012-12-25 17:21:09 +01:00
Rob Sykes
801b315729 swr: Add SOX resampler support 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-11 22:04:00 +01:00
Rob Sykes
41049d07f2 swr: add a lowpass default so that each Resampler can have its own default. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-11 22:04:00 +01:00
Michael Niedermayer
ae5a55e77a swr: move flush into Resampler 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-11 22:04:00 +01:00
Michael Niedermayer
431dcc49d2 swr: make realloc_audio() available outside swresample.c 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-11 22:04:00 +01:00
Rob Sykes
5a5d70748c swr: Add API to make resample engine selectable. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-11 22:04:00 +01:00
Stefano Sabatini
8bee8f778a lswr/swresample: use AV_OPT_TYPE_SAMPLE_FMT for sample format options 
Improve usability and robustness.
 2012-12-03 13:49:56 +01:00
Clément Bœsch
c02ae48271 swr: set default channel count options to 0. 
If not set, they will be defined using the channel layout setting, which
is much more convenient when using swr_alloc() instead of
swr_alloc_set_opts().
 2012-11-19 18:49:14 +01:00
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>
 2012-11-13 13:21:21 +00:00
Stefano Sabatini
6450c05ba5 lswr/swresample: adopt globally consistent rules for options help message 
The help text tells what the option does, not what the accepted parameter
is. Thus convert strings of the kind:

Bikeshed Color
to
set bikeshed color
 2012-11-03 20:38:02 +01:00
Michael Niedermayer
97599f8c6d swr: make sure the last data element is NULL so we can use it to detect the number of channels 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-24 23:19:32 +02:00
Michael Niedermayer
31a797eb28 swr: add av_cold to init/free functions 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-09 02:26:20 +02:00