Commit Graph

44 Commits

Author SHA1 Message Date
Paul B Mahol
dbc9a8f21f avcodec/aac: Add floating point 960/120 MDCT window
Co-Authored-By: Alex Converse <alex.converse@gmail.com>
Co-Authored-By: Rostislav Pehlivanov <atomnuker@gmail.com>
2017-08-24 17:42:07 -07:00
Clément Bœsch
35494441b5 Merge commit '39cea6570c11a49b64b2ec8d71e218db03b4c742'
* commit '39cea6570c11a49b64b2ec8d71e218db03b4c742':
  aactab: Move extern keyword to the front of array declarations

Merged-by: Clément Bœsch <u@pkh.me>
2017-03-29 14:34:58 +02:00
Diego Biurrun
39cea6570c aactab: Move extern keyword to the front of array declarations
libavcodec/aactab.h:49:1: warning: ‘extern’ is not at beginning of declaration [-Wold-style-declaration]
2016-11-02 10:33:36 +01:00
Marton Balint
67bef4cffa avcodec/aactab: do not use floats for constants
This may improve the precision of the fixed point encoder/decoder for some
compilers and architectures.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>
2016-03-15 00:47:38 +01:00
Ganesh Ajjanagadde
79abf2d0de avcodec/aac_tablegen: get rid of hardcoded tables entirely
Commit 96786a12f6 makes runtime
initialization cheap.

Tested with FATE, with/without --enable-hardcoded-tables.

Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-11-28 09:41:15 -05:00
Rostislav Pehlivanov
ec0719264c aac: temporarily un-share aac_table_init AVOnce variable
AAC-Fixed decoder segfaulted. This commit makes the aac encoder
and decoder init the table twice in case of transcoding again.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-11-27 17:51:42 +00:00
Rostislav Pehlivanov
591fbd629e aactab.h: fix comment
Previous commit broke it.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-11-27 15:36:57 +00:00
Rostislav Pehlivanov
222545cc7e aactab.h: update and correct comment
Tables in that file have been used by both for a long time now.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-11-27 15:00:13 +00:00
Rostislav Pehlivanov
3d62e7a30f aacenc: make threadsafe
Since the ff_aac_tableinit() can be called by both the encoder and
the decoder (in case of transcoding) this commit shares the AVOnce
variable to prevent this.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-11-27 14:52:35 +00:00
Rostislav Pehlivanov
b9fb1db9b4 aactab: move ltp_coef[] from aacdectab to aactab
The encoder makes use of it in the following commits.
2015-10-17 02:31:20 +01:00
Rostislav Pehlivanov
f55cc57911 aac: move the TNS tables from aacdectab to the shared aactab
This commit simply moves the TNS tables to a more appropriate
aactab.h since then they can be accessed by both the decoder
and encoder.

The encoder _shouldn't_ normally need the tables since the
specs describe a specific quantization process, but the exact
reason for this can be seen in the TNS commit following.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-08-29 06:07:12 +01:00
Michael Niedermayer
f267d553f7 avcodec/aactab: Add ff_aac_eld_window_480_fixed
Fixes pointer type mismatch

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-25 13:59:53 +02:00
Jovan Zelincevic
08be74ac81 libavcodec: Implementation of AAC_fixed_decoder (LC-module) [2/4]
Add fixed point implementation of functions for generating tables

Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-07-09 14:41:19 +02:00
Michael Niedermayer
dd72e26d0c Merge commit '7640c4a371a97899dfb443d980fd0bf8ac587754'
* commit '7640c4a371a97899dfb443d980fd0bf8ac587754':
  aacdec: Tables for length 480 AAC ELD.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-04 13:40:23 +01:00
Niel van der Westhuizen
7640c4a371 aacdec: Tables for length 480 AAC ELD. 2015-02-03 20:32:16 -08:00
Michael Niedermayer
fd53f9d985 Merge commit '7f29644108c5fbd80f160930b31b78b8704c1a49'
* commit '7f29644108c5fbd80f160930b31b78b8704c1a49':
  aac: Fix low delay windowing.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-05 02:18:57 +01:00
Michael Niedermayer
4195ae0fd8 Merge commit 'b2212dec0f011893ec68eecaa990170fa24050d7'
* commit 'b2212dec0f011893ec68eecaa990170fa24050d7':
  aac: Fix TNS decoding for the 512 sample window family.

also temporarily disable fate-aac-er_ad6000np_44_ep0 as this commit
causes a mismatch with the reference pcm file
The test will be reenabled after all fixes and with a new pcm reference

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-05 02:02:02 +01:00
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
Michael Niedermayer
fdb4822559 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  aac: Add support for Enhanced AAC Low Delay (ER AAC ELD).

Conflicts:
	Changelog
	libavcodec/aacdec.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-23 10:02:43 +02:00
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
Michael Niedermayer
32ea39f56d Merge commit '1914e6f010b3320025c7b692aaea51d9b9a992a8'
* commit '1914e6f010b3320025c7b692aaea51d9b9a992a8':
  aacdec: Add support for LD (Low Delay) AAC

Conflicts:
	Changelog
	libavcodec/aacdec.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-19 12:55:26 +02:00
Alex Converse
1914e6f010 aacdec: Add support for LD (Low Delay) AAC 2013-09-18 12:01:53 -07:00
Michael Niedermayer
ea5dab58e0 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  dwt: check malloc calls
  ppc: Drop unused header regs.h
  af_resample: remove an extra space in the log output
  Convert vector_fmul range of functions to YASM and add AVX versions
  lavfi: add an audio split filter
  lavfi: rename vf_split.c to split.c

Conflicts:
	doc/filters.texi
	libavcodec/ppc/regs.h
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavfilter/f_split.c
	libavfilter/split.c
	libavfilter/version.h
	libavfilter/vf_split.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-05-22 23:42:17 +02:00
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
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
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
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
Kostya Shishkov
9289a32a8e Fix AAC data smuggling:
aactab.h declares only 316 of 428 elements in ff_aac_pow2sf_tab[]

Originally committed as revision 16805 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-26 13:44:09 +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
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
Stefano Sabatini
987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +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
Robert Swain
f25c244f5f AAC tables and data that have been OKed by Michael
Originally committed as revision 14425 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 08:21:48 +00:00