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
2010-01-06 22:40:52 +00:00
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
2009-03-23 10:58:05 +00:00
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
2009-02-09 15:31:08 +00:00
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
2009-02-01 02:00:19 +00:00
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
2008-07-24 17:09:28 +00:00
d952638699
typo: occured --> occurred
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Originally committed as revision 12549 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-22 01:06:57 +00:00
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
2007-08-11 22:48:55 +00:00
e5a389a1b7
license header consistency cosmetics
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Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-05 10:40:25 +00:00
90b5b51eab
misc typo fixes
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Originally committed as revision 9291 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-12 18:50:50 +00:00
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
2007-05-10 09:00:44 +00:00
0339fab8fc
Remove unused variable.
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Originally committed as revision 8681 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-08 13:02:25 +00:00
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
2007-03-22 11:23:38 +00:00
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
2007-03-22 11:13:13 +00:00
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
2007-03-22 11:10:30 +00:00
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
2007-03-22 03:18:34 +00:00
55fc0eb174
AUDIOPHILE_KIDDY_MODE
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Originally committed as revision 8475 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-22 03:16:02 +00:00
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
2007-03-22 00:52:49 +00:00
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
2007-03-22 00:16:41 +00:00
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
2007-03-21 23:44:49 +00:00
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
2007-03-21 22:39:00 +00:00
ca6940f871
increase bits for non default highprecision mode
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Originally committed as revision 8469 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-21 22:38:07 +00:00
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
2007-03-21 22:37:05 +00:00
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
2007-03-21 22:02:52 +00:00
f66e4f5f9e
Add av_ prefix to clip functions
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Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-25 10:27:12 +00:00
c26abfa541
Rename ABS macro to FFABS.
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Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-11 23:17:58 +00:00
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
2006-10-07 15:30:46 +00:00
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
2006-06-18 11:33:14 +00:00
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
2006-01-12 22:43:26 +00:00
115329f160
COSMETICS: Remove all trailing whitespace.
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Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-17 18:14:38 +00:00
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
2005-08-14 16:37:29 +00:00
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
2005-01-12 18:25:48 +00:00
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
2004-12-31 17:37:23 +00:00
6cb5dcb392
special case for filter_length==1
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Originally committed as revision 3787 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-12-31 12:58:46 +00:00
788d7a8cac
av_resample_compensate() doxy
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Originally committed as revision 3671 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-11-12 02:05:26 +00:00
6e225de2fe
user selectble cutoff frequency
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Originally committed as revision 3619 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-10-21 21:07:40 +00:00
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
2004-10-21 20:01:32 +00:00
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
2004-10-21 03:11:34 +00:00
f25ba8b393
optimization
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Originally committed as revision 3616 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-10-20 19:06:29 +00:00
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
2004-10-20 18:02:34 +00:00
2ac615da82
10l
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Originally committed as revision 3614 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-10-20 12:04:08 +00:00
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
2004-09-28 21:11:09 +00:00
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
2004-08-14 15:18:49 +00:00
1ac3176044
ugly missing lrintf workaround by ("Steven M. Schultz" <sms at 2bsd dot com>)
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Originally committed as revision 3289 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-07-05 19:19:04 +00:00
b9d2085ba1
various resampling fixes
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Originally committed as revision 3271 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-30 14:15:31 +00:00
08f7073a6f
avoid useless normalization and 10l fix
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Originally committed as revision 3229 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-17 16:34:46 +00:00
aaaf1635c0
polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample filters
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Originally committed as revision 3228 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-17 15:43:23 +00:00
Michael Niedermayer
Benoit Fouet
Diego Biurrun
Aurelien Jacobs
Reimar Döffinger
Stefan Huehner
Wolfram Gloger
Kurosu