videolan/ffmpeg
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26 Commits

Author SHA1 Message Date
Alex Converse
7f29644108 aac: Fix low delay windowing. 
AAC LD uses a low overlap sine window instead of a KBD window.
 2014-01-04 14:42:38 -08:00
Alex Converse
b2212dec0f aac: Fix TNS decoding for the 512 sample window family. 2014-01-04 14:42:38 -08:00
Alex Converse
b3be41ca82 aac: Add support for Enhanced AAC Low Delay (ER AAC ELD). 
This does not include support for LD SBR, epTool, data resilience, nor
the 960 transform family.
 2013-10-23 00:08:29 -07:00
Alex Converse
1914e6f010 aacdec: Add support for LD (Low Delay) AAC 2013-09-18 12:01:53 -07:00
Kieran Kunhya
5ff01259a8 Convert vector_fmul range of functions to YASM and add AVX versions 
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2012-05-21 17:13:05 -04:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Alex Converse
e29af81818 aactab: Tablegenify ff_aac_pow2sf_tab. 
Originally committed as revision 23740 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-23 19:30:01 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-20 14:45:34 +00:00
Måns Rullgård
84dc2d8afa Remove DECLARE_ALIGNED_{8,16} macros 
These macros are redundant.  All uses are replaced with the generic
DECLARE_ALIGNED macro instead.

Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-06 14:24:59 +00:00
Stefan Gehrer
cbdcf479ce remove tables of codebook vector values which are contained in 
another table

Originally committed as revision 21918 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-20 12:32:30 +00:00
Måns Rullgård
c67278098d Move array specifiers outside DECLARE_ALIGNED() invocations 
Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-22 03:25:11 +00:00
Måns Rullgård
c816d3d042 AAC: Compress codebook tables and optimise sign bit handling 
The codebooks each consist of small number of values repeated in
groups of 2 or 4.  Storing the codebooks as a packed list of 2- or
4-bit indexes into a table reduces their size substantially (from 7.5k
to 1.5k), resulting in less cache pressure.

For the band types with sign bits in the bitstream, storing the number
and position of non-zero codebook values using a few bits avoids
multiple get_bits() calls and floating-point comparisons which gcc
handles miserably.

Some float/int type punning also avoids gcc brain damage.

Overall speedup 20-35% on Cortex-A8, 20% on Core i7.

Originally committed as revision 21188 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-13 16:46:28 +00:00
Måns Rullgård
42d3fbb3f4 AAC: use new dsputil functions 
Originally committed as revision 19956 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-22 00:48:45 +00:00
Reimar Döffinger
7eb1c36431 ff_swb_offset_* tables should be const. 
Originally committed as revision 19782 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-06 08:48:45 +00:00
Alex Converse
85e9296f41 Move TNS and swb_offset tables from aacdectab.h to aactab.c so that they can be 
shared with the AAC encoder.

Originally committed as revision 19174 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-12 21:14:45 +00:00
Alex Converse
30272450f9 Add support for sample rate index 12, 7350 Hz 
Patch by Alex Converse ( alex converse gmail com )

Originally committed as revision 17180 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-12 13:31:43 +00:00
Diego Biurrun
bad5537e2c Use full internal pathname in doxygen @file directives. 
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
Aurelien Jacobs
b250f9c66d Change semantic of CONFIG_*, HAVE_* and ARCH_*. 
They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-13 23:44:16 +00:00
Alex Converse
7633a0415d AAC: Frequency domain prediction and hence Main profile support 
Patch by Alex Converse ( alex converse gmail com )

Originally committed as revision 15919 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-24 00:13:50 +00:00
Alex Converse
d0ee50216d Fix perceptual noise shaping scaling including an oversight of the offset for 
the EIGHT_SHORT window type. Fixes issue 664.

Patch by Alex Converse (alex converse gmail com)

Originally committed as revision 15776 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-05 13:59:42 +00:00
Reimar Döffinger
9b5ede5b64 Add (additional) const to many global tables. 
Originally committed as revision 15515 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-10-02 15:52:04 +00:00
Robert Swain
9ffd5c1cee More OKed AAC decoder hunks 
Originally committed as revision 14774 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-15 08:01:31 +00:00
Robert Swain
848a5815ce Synchronise AAC decoder code with that from SoC 
Originally committed as revision 14772 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-15 00:19:14 +00:00
Robert Swain
9cc04edff9 More OKed hunks of the AAC decoder from SoC 
Originally committed as revision 14694 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-11 11:16:06 +00:00
Robert Swain
cc0591dab0 Sync already committed code with that in SoC and commit more OKed hunks of code 
Originally committed as revision 14674 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-09 10:46:27 +00:00
Robert Swain
fed3f06914 Move shared tables to aactab.c and add declarations to aactab.h. Also sync with 
SoC code.

Originally committed as revision 14625 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-05 19:31:05 +00:00