Stefan Gehrer
cbdcf479ce
remove tables of codebook vector values which are contained in
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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
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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
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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
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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.
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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
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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
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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.
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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_*.
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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
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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
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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.
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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
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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
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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
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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
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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
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SoC code.
Originally committed as revision 14625 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 19:31:05 +00:00
