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path: root/libavcodec/celp_filters.c
AgeCommit message (Collapse)Author
2012-08-15Don't include common.h from avutil.hMartin Storsjö
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-13celp: optimise ff_celp_lp_synthesis_filter()Mans Rullgard
Adding instead of subtracting the products in the loop allows the compiler to generate more efficient multiply-accumulate instructions when 16-bit multiply-subtract is not available. ARM has only multiply-accumulate for 16-bit operands. In general, if only one variant exists, it is usually accumulate rather than subtract. In the same spirit, using the dedicated saturation function enables use of any special optimised versions of this. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-22Add a shift parameter to celp_lp_synthesis_filter()Mohamed Naufal Basheer
This is intended for reuse by the G.723.1 decoder Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-05-04celp filters: Do not read earlier than the start of the 'out' vector.Alex Converse
CC: libav-stable@libav.org
2011-06-02Remove unused variablesMans Rullgard
2011-03-19Replace FFmpeg with Libav in licence headersMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2010-03-01Fix spelling in commentVitor Sessak
Originally committed as revision 22137 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-01Add commented-out unoptimized code to improve readabilityVitor Sessak
Originally committed as revision 22136 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-16Cosmetics: make celp_filters.* formatting more consistent with the rest ofVitor Sessak
FFmpeg Originally committed as revision 20885 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-16Optimize ff_celp_lp_synthesis_filterf(). 50% faster in my tests.Vitor Sessak
Originally committed as revision 20884 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-10And on the sixth day, God gave us the <= operand, which makes the loopRonald S. Bultje
"for (i = 1; i < num + 1; i++)" look like "for (i = 1; i <= num; i++)". Programmers worldwide rejoiced and used the operand, e.g. in the thread "[PATCH] remove ugliness in cel_filters.c", and He saw that it was good. Originally committed as revision 20489 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-12Add ff_celp_circ_addf() function to be used for sparse vector circularColin McQuillan
convolution in the upcoming AMR-NB floating point decoder. The function scales and adds a vector, that is lagged by some offset, to another vector with the same number of elements. Patch by Colin McQuillan ( m.niloc googlemail com ) Originally committed as revision 19634 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-03Correct the sign of the arithmetic in ff_celp_lp_zero_synthesis_filterf()Colin McQuillan
Patch by Colin McQuillan ( m.niloc googlemail com ) Originally committed as revision 19574 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-02cosmetics: K&R coding styleDiego Biurrun
Originally committed as revision 19561 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-19Add LP zero synthesis filter. Patch by Kenan Gillet.Kenan Gillet
Originally committed as revision 18616 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-15[COSMETIC] Correct a minor nit. Should be clearer now.Reynaldo H. Verdejo Pinochet
Originally committed as revision 18529 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-15Fix possibly harmful outbound addressing. Patch by Kenan Gillet.Kenan Gillet
Originally committed as revision 18528 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-24Change sign in ff_celp_lp_synthesis_filterf(). This makes this functionKenan Gillet
useful for AMR and RA144. Patch by Kenan Gillet Originally committed as revision 17546 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-31Add a LPC filterKenan Gillet
Part of the QCELP patch by Kenan Gillet, kenan.gillet gmail com Originally committed as revision 15754 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-25Split off celp_filters.[ch] from acelp_filters.[ch] for the QCELP decoder.Kenan Gillet
patch by Kenan Gillet, kenan.gillet gmail com Originally committed as revision 15680 to svn://svn.ffmpeg.org/ffmpeg/trunk
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