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
2007-03-22 11:23:38 +00:00
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
2007-03-22 11:13:13 +00:00
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
2007-03-22 11:10:30 +00:00
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
2007-03-22 03:18:34 +00:00
Michael Niedermayer
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
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
2007-03-22 00:52:49 +00:00
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
2007-03-22 00:16:41 +00:00
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
2007-03-21 23:44:49 +00:00
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
2007-03-21 22:39:00 +00:00
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
2007-03-21 22:38:07 +00:00
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
2007-03-21 22:37:05 +00:00
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
2007-03-21 22:02:52 +00:00
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
2007-02-25 10:27:12 +00:00
Diego Biurrun
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
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
2006-10-07 15:30:46 +00:00
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
2006-06-18 11:33:14 +00:00
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
2006-01-12 22:43:26 +00:00
Diego Biurrun
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
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
2005-08-14 16:37:29 +00:00
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
2005-01-12 18:25:48 +00:00
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
2004-12-31 17:37:23 +00:00
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
2004-12-31 12:58:46 +00:00
Michael Niedermayer
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
Michael Niedermayer
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
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
2004-10-21 20:01:32 +00:00
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
2004-10-21 03:11:34 +00:00
Michael Niedermayer
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
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
2004-10-20 18:02:34 +00:00
Michael Niedermayer
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
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
2004-09-28 21:11:09 +00:00
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
2004-08-14 15:18:49 +00:00
Michael Niedermayer
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
Michael Niedermayer
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
Michael Niedermayer
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
Michael Niedermayer
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
