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
Aurelien Jacobs
aee481cebe
use av_clip_int16() where it makes sense
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Originally committed as revision 10078 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
e5a389a1b7
license header consistency cosmetics
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Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
90b5b51eab
misc typo fixes
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Originally committed as revision 9291 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
2029f312e8
Remove redundant #inclusion of common.h, avcodec.h already #includes it.
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Originally committed as revision 8967 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
0339fab8fc
Remove unused variable.
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Originally committed as revision 8681 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
7e068841cb
replace long double in the audiophile kiddy mode with doubles, its faster (and more portable) and the audiophile placebo 120db stopband attenuation isnt affected
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Originally committed as revision 8482 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
d6fead9089
change high precision mode to 30 bits again after making the code less overflow sensitive
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Originally committed as revision 8481 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
303bd95cd2
optimize linear filter coeff interpolation code, this also makes the code less prone to overflows
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Originally committed as revision 8480 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
447caf7941
revert r8469 (increase bits for non default highprecision mode)
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it causes overflows with linear interpolated filters coefficients
Originally committed as revision 8476 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
55fc0eb174
AUDIOPHILE_KIDDY_MODE
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Originally committed as revision 8475 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
50df67d3b5
optimize bessel function instead of trusting gcc to do trivial optimizations (as gcc doesnt ...)
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Originally committed as revision 8474 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
14f887efc6
select more sensible default windows (= attenuation beyond the dynamic range of your input is silly if it negatively affects other parameters)
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Originally committed as revision 8473 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
20cf58c32b
make kaiser windows with other beta than 16 available
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Originally committed as revision 8472 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
c252b26d55
make high precision mode accessible at compile time
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Originally committed as revision 8470 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
ca6940f871
increase bits for non default highprecision mode
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Originally committed as revision 8469 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
ae232dd740
code for testing the accuracy of the resampler
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Originally committed as revision 8468 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
66a148a19a
remove dithering of filter coefficients, improves precision by 1-2 bits and
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improves subjective sound quality on artificial sample (udial.wav resampling
to 32khz)
Originally committed as revision 8467 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Reimar Döffinger
f66e4f5f9e
Add av_ prefix to clip functions
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Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
c26abfa541
Rename ABS macro to FFABS.
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Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
b78e7197a8
Change license headers to say 'FFmpeg' instead of 'this program/this library'
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and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Stefan Huehner
7b49ce2e34
Add const to (mostly) char* and make some functions static, which aren't used
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outside their declaring source file and which have no corresponding prototype.
patch by Stefan Huehner stefan^^@^^huehner^^.^^org
Originally committed as revision 5497 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Diego Biurrun
5509bffa88
Update licensing information: The FSF changed postal address.
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Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Diego Biurrun
115329f160
COSMETICS: Remove all trailing whitespace.
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Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Wolfram Gloger
f0ff20a197
minor fixes for invalid audio data patch by (Wolfram Gloger: wmglo, dent med uni-muenchen de)
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Originally committed as revision 4524 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Kurosu
f41c1fac3c
av_malloc vs av_mallocz patch by (Kurosu <kurosu inforezo org>)
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Originally committed as revision 3830 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
53f0090dcc
faster and slightly less accurate nearest neighbor resampler
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Originally committed as revision 3789 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
6cb5dcb392
special case for filter_length==1
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Originally committed as revision 3787 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
788d7a8cac
av_resample_compensate() doxy
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Originally committed as revision 3671 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
6e225de2fe
user selectble cutoff frequency
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Originally committed as revision 3619 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
4e255822e5
100l (dont reset the sample position at the block end)
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Originally committed as revision 3618 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
ed861c6bd2
make most resample filter parameters selectable at runtime
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Originally committed as revision 3617 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
f25ba8b393
optimization
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Originally committed as revision 3616 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
51a880208a
make filter size, int32/int16 and a few other things selectable at compiletime
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Originally committed as revision 3615 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
2ac615da82
10l
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Originally committed as revision 3614 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
80e8528865
dont just resample half of the data sometimes
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Originally committed as revision 3535 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
bb22e8b175
10l (lrintf(a)+b vs. lrintf(a+b))
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Originally committed as revision 3391 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago