f52b871761
celp_filters: don't use filter lenght as loop bound
CC: libav-stable@libav.org
Bug-Id: CID 717906 / CID 717907 / CID 717916 /
CID 717917 / CID 717919 / CID 732259
10 years ago
1d9c2dc89a
Don't include common.h from avutil.h
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
fddc5b9bea
celp: optimise ff_celp_lp_synthesis_filter()
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>
12 years ago
8aac5585fa
Add a shift parameter to celp_lp_synthesis_filter()
This is intended for reuse by the G.723.1 decoder
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
13 years ago
37ddd38332
celp filters: Do not read earlier than the start of the 'out' vector.
CC: libav-stable@libav.org
13 years ago
e65ab9d94f
Remove unused variables
14 years ago
2912e87a6c
Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
fe89ccd162
Fix spelling in comment
Originally committed as revision 22137 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
efb0102fef
Add commented-out unoptimized code to improve readability
Originally committed as revision 22136 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
5c910fcad8
Cosmetics: make celp_filters.* formatting more consistent with the rest of
FFmpeg
Originally committed as revision 20885 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
6ef607c2d5
Optimize ff_celp_lp_synthesis_filterf(). 50% faster in my tests.
Originally committed as revision 20884 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
b1ade3d182
And on the sixth day, God gave us the <= operand, which makes the loop
"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
15 years ago
d4d6ae1603
Add ff_celp_circ_addf() function to be used for sparse vector circular
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
15 years ago
d5652f38fb
Correct the sign of the arithmetic in ff_celp_lp_zero_synthesis_filterf()
Patch by Colin McQuillan ( m.niloc googlemail com )
Originally committed as revision 19574 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
954489244e
cosmetics: K&R coding style
Originally committed as revision 19561 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
d1bf60771c
Add LP zero synthesis filter. Patch by Kenan Gillet.
Originally committed as revision 18616 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
e223a3bd38
[COSMETIC] Correct a minor nit. Should be clearer now.
Originally committed as revision 18529 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
807c4c7875
Fix possibly harmful outbound addressing. Patch by Kenan Gillet.
Originally committed as revision 18528 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
cacb82134e
Change sign in ff_celp_lp_synthesis_filterf(). This makes this function
useful for AMR and RA144.
Patch by Kenan Gillet
Originally committed as revision 17546 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
1fb0d4b8a6
Add a LPC filter
Part of the QCELP patch by Kenan Gillet, kenan.gillet gmail com
Originally committed as revision 15754 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
4599d22c0c
Split off celp_filters.[ch] from acelp_filters.[ch] for the QCELP decoder.
patch by Kenan Gillet, kenan.gillet gmail com
Originally committed as revision 15680 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Vittorio Giovara
Martin Storsjö
Mans Rullgard
Mohamed Naufal Basheer
Alex Converse
Vitor Sessak
Ronald S. Bultje
Colin McQuillan
Diego Biurrun
Kenan Gillet
Reynaldo H. Verdejo Pinochet