Michael Niedermayer
91debec976
swr/resample: fix filter rounding and cliping for s32
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
f9abeecd94
swr/ build_filter: use av_calloc() fix buffer overflow
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Fixes integer & buffer overflow
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Alexander Strasser
ac25b31ede
lswr: Improve default resampler's default parameters
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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>
12 years ago
Rob Sykes
801b315729
swr: Add SOX resampler support
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Rob Sykes
41049d07f2
swr: add a lowpass default so that each Resampler can have its own default.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
ae5a55e77a
swr: move flush into Resampler
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Rob Sykes
5a5d70748c
swr: Add API to make resample engine selectable.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Clément Bœsch
8f42b09604
swr/resample: fix SSSE3 included unconditionally.
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10l Regression since 8ea88339
.
12 years ago
Clément Bœsch
8ea8833979
swr/resample: move templating parameters to template itself.
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It has various benefits such as allowing some refactoring, clarifying
the code in the inclusion part, and making the template understandable
in standalone.
This commit is based on the templating method used by Justin Ruggles for
libavresample.
12 years ago
Michael Niedermayer
7df9f595c9
swri_resample_init: unsupported sample formats are an internal error.
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This condition cannot happen.
Fixes CID733802
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
9d89d1d484
swr/resample: mark mm_flags as potentially unused
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They are unused when asm is disabled
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
070b0e1c77
libswr: remove redundant ARCH_X86, MMX* implicates X86
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Derek Buitenhuis
5f256f9df2
swsresample: Fix unprotected inline asm
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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
4814326533
swr/resample: update SSSE3 flag to new name
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
4ec03d1386
bessel: check that the function terminates as expected by av_assert2().
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A clear abort is better than wrong output and a possible crash.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Justin Ruggles
7e15df7551
swr: resampling: add filter type and Kaiser window beta to AVOptions
13 years ago
Michael Niedermayer
51d2578348
swr: fix MMX resample code, add emms
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Fixes Ticket1495
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
782763ed2b
swr: fix compilation with ancient toolchain that doesnt support SSSE3
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
4ccf6e3971
swr: MMX2 & SSSE3 int16 resample core
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about 4 times faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
0c142e4cda
swr: introduce filter_alloc in preparation of SIMD resample optimisations
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
4def5d2b64
swr: add swr_get_delay() to find the exact delay the swresampler introduces.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
edbde52226
swr: change sample format representation so as to maintain the planer/packed distinction.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
f9a2c5bc07
swr: simplify code by using av_get_bytes_per_sample()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
24ab1abfb6
resample: support double precission resampling
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This commit is dedicated to the audiophiles who can hear it when a
needle is dropped on the moon.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
7f1ae79d38
swr: support float & int32 in the resampler
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
2f0801527d
resample: update copyright years, they where incorrect.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
7e592379d9
resample: Fix boundary handling with fragments.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Marton Balint
741aca7936
libswresample: introduce int swr_set_compensation() instead of void swr_compensate()
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The new version returns AVERROR(EINVAL) is the specified paramters are invalid,
and also creates the resampler if none was used so far.
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Clément Bœsch
af1eb298c1
swr: use int16_t instead of short for resampling.
13 years ago
Clément Bœsch
c4deb90cfa
swr: use "swri_" prefix instead of "swr_" for the private API.
13 years ago
Clément Bœsch
64db5a1a57
swr: drop 'AV' prefix from ResampleContext.
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This type/struct is not part of the public API.
13 years ago
Clément Bœsch
7e516a11ca
swr: rename resample2 to resample.
13 years ago
Michael Niedermayer
1b9ca38d9d
resample2: fix potential overflow
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
a67cb012e6
resample: Fix overflow
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Found-by: Jim Radford
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
03e56a2ad9
resample2: Fix passing argument from incompatible pointer type warnings.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
e6459720b5
swr: Mark src as const in swr_resample()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Clément Bœsch
ade3ec8457
swresample: fix another broken indent chunk.
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Also use a consistent style inside that block.
13 years ago
Clément Bœsch
9719f25e7b
swresample: fix broken indent.
13 years ago
Michael Niedermayer
b5875b9111
Add libswresample.
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Similar to libswscale this does resampling and format convertion, just for audio
instead of video.
changing sampling rate, sample formats, channel layouts and sample packing all
in one with a very simple public interface.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Måns Rullgård
080ce9071d
resample: replace VLA with malloc/free
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Originally committed as revision 24142 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Måns Rullgård
a426016cfc
resample: check memory allocations in av_resample_init()
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Originally committed as revision 24141 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Diego Biurrun
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Carl Eugen Hoyos
a882cf9c21
Make av_build_filter static (and remove av_): It is not used outside resample2.c.
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Originally committed as revision 22118 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Michael Niedermayer
2efcf29275
Stop the approximation in bessel() once it does no longer improve.
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This is faster.
Originally committed as revision 21038 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Benoit Fouet
6d69a653d8
Move av_class to AVResampleContext instead of ReSampleContext.
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Fixes issue 852.
Originally committed as revision 18170 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Michael Niedermayer
3136fcf45e
Move doxy for public resample2 functions to the public header.
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Originally committed as revision 17099 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
bad5537e2c
Use full internal pathname in doxygen @file directives.
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
ca74c0a180
cosmetics: Fix two common typos: wont --> will not, lets --> let us.
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Originally committed as revision 14372 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
d952638699
typo: occured --> occurred
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Originally committed as revision 12549 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago