Loren Merritt
1221bb6239
x86: lpc: fix a segfault in av_evaluate_lls_sse2()
12 years ago
Loren Merritt
c93ccf5a4c
lpc: use levinson for the first pass of multipass cholesky
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Levinson is faster, and cholesky is only needed if we want to apply different
weights to different samples, which doesn't happen on the first pass.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
12 years ago
Loren Merritt
502ab21af0
x86: lpc: simd av_update_lls
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4x-6x faster on sandybridge
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
12 years ago
Loren Merritt
41578f70cf
lpc: use function pointers, in preparation for asm
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
12 years ago
Loren Merritt
cc6714bb16
lpc: remove "decay" argument
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We never used the rolling-average mode, and this makes av_update_lls 15% faster.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
12 years ago
Luca Barbato
9d4da474f5
lls: move to the private namespace
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The functions are private.
12 years ago
Martin Storsjö
8b25a20efb
lpc: Add a function for calculating reflection coefficients from samples
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Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
Janne Grunau
f101eab1be
x86: call most of the x86 dsp init functions under if (ARCH_X86)
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Rename the called dsp init functions to *_init_x86.
12 years ago
Justin Ruggles
4b0e0f31bf
lpc: fix alignment of windowed samples for odd maximum LPC order
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Fixes crash on x86 due to alignment requirements for w_data in
lpc_apply_welch_window_sse2().
13 years ago
Martin Storsjö
1d9c2dc89a
Don't include common.h from avutil.h
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Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Diego Biurrun
32f3c541bc
doxygen: Do not include license boilerplates in Doxygen comment blocks.
13 years ago
Diego Biurrun
c18365402b
Replace Subversion revisions in comments by Git hashes.
13 years ago
Diego Biurrun
96c1e6d40d
doxygen: Make sure parameter names match between .c and .h files.
14 years ago
Diego Biurrun
24c9babaaf
doxygen: Fix parameter names to match the function prototypes.
14 years ago
Anton Khirnov
188dea1dbf
lavc: move some flac-specific options to its private context.
14 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
Justin Ruggles
1c189fc533
cosmetics related to LPC changes.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
77a78e9bdc
Separate window function from autocorrelation.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
56f8952b25
Move lpc_compute_autocorr() from DSPContext to a new struct LPCContext.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
23940f1405
Add AVCodecContext.lpc_type and Add AVCodecContext.lpc_passes fields.
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Add AVLPCType enum.
Deprecate AVCodecContext.use_lpc.
Originally committed as revision 24199 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Måns Rullgård
49bd8e4b84
Fix grammar errors in documentation
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Justin Ruggles
fde82ca7e4
Move autocorrelation function from flacenc.c to lpc.c. Also rename the
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corresponding dsputil functions and remove their dependency on the FLAC
encoder.
Fixes Issue1486.
Originally committed as revision 20266 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Patrik Kullman
3cfe88194a
lpc: Remove false positive compilation warning about weight being
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uninitialized. Patch by Patrik Kullman (patrik A yes D nu).
Originally committed as revision 17218 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Patrik Kullman
eabe8c7033
Assert that ff_lpc_calc_coefs() is called with a valid LPC method.
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Patch by Patrik Kullman (patrik A yes D nu).
Originally committed as revision 17217 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Patrik Kullman
83f63ffb22
lpc: Document the use_lpc parameter to ff_lpc_calc_coefs().
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Patch by Patrik Kullman (patrik A yes D nu).
Originally committed as revision 17216 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Vitor Sessak
1be0fc2909
Avoid duplicating compute_lpc_coefs() function in both the RA288 and AAC decoders.
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Originally committed as revision 15193 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Vitor Sessak
f6a1ca1dad
Misc cosmetics in compute_lpc_coefs(): braces removal and empty lines
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Originally committed as revision 15093 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Vitor Sessak
fc324cd523
Remove useless var in compute_lpc_coefs()
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Originally committed as revision 15091 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Vitor Sessak
5d2dd90848
Merge declaration and initialization of a few vars in compute_lpc_coefs()
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Originally committed as revision 15088 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Vitor Sessak
f991d423d2
Remove useless zeroing of a buffer
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Originally committed as revision 15038 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
8e84913db4
cosmetics: Fix incorrect indentation.
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Originally committed as revision 14878 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
38c1a5c4d9
update my email address to one which does not depend on my service provider
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Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
81fc8a63c5
use range of lpc orders in ORDER_METHOD_EST
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Originally committed as revision 14796 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
9045f5e72d
cosmetics: adjust line breaks and vertical alignment
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Originally committed as revision 14795 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
56c07e2989
use limited range of lpc orders when quantizing coefficients
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Originally committed as revision 14794 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Ramiro Polla
e9e3c9801e
lpc: cosmetics: vertically align declarations and definitions.
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Originally committed as revision 14792 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Ramiro Polla
c50da3ad6c
flacenc, lpc: Move LPC code from flacenc.c to new lpc.[ch] files.
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Originally committed as revision 14790 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago