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72 Commits

Author SHA1 Message Date
Robert Swain
febcbd65fa Correct pulse amplitude application - a negative or 0 coefficient implies the 
pulse is subtracted, else it is added. Also avoid a divide by 0.

Based on a patch by Alex Converse (alex converse gmail com)
Fixes part of issue632

Originally committed as revision 15294 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-11 01:22:34 +00:00
Vitor Sessak
1775c7fac6 Multiply table by -1. This avoid doing this calculation (that was introduced 
in my last commit) in real time.

Originally committed as revision 15195 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-04 15:04:08 +00:00
Vitor Sessak
1be0fc2909 Avoid duplicating compute_lpc_coefs() function in both the RA288 and AAC decoders. 
Originally committed as revision 15193 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-04 11:03:14 +00:00
Robert Swain
93b63b1a67 Fix typo in element type 
Originally committed as revision 15037 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-29 20:19:23 +00:00
Robert Swain
f4fae46e67 Remove unnecessary portion of a condition. This fixes issue607 and avoids 
another unintended bug where channel coupling could have been run on an SCE.

Originally committed as revision 15036 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-29 20:18:34 +00:00
Robert Swain
b0f5852a13 Use ff_imdct_half() and vector_fmul_window() for IMDCT and windowing. Reduce 
buffer sizes accordingly. This produces a ~10% overall decoding perfomance
improvement.

Originally committed as revision 14908 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-22 18:21:22 +00:00
Robert Swain
db38c38624 Whitespace cosmetics after the last commit 
Originally committed as revision 14907 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-22 18:19:18 +00:00
Robert Swain
f49905588a Separate code in imdct_and_windowing() into distinct IMDCT, windowing and 
buffer update sections

Originally committed as revision 14906 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-22 18:18:50 +00:00
Robert Swain
65b20b2485 Reindent after last commit 
Originally committed as revision 14882 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 12:13:22 +00:00
Robert Swain
fbd91d7cad Work around GCC variable may be used uninitialised warning 
Originally committed as revision 14881 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 12:12:03 +00:00
Robert Swain
1098e8d236 Remove unused variable 
Originally committed as revision 14880 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 11:29:28 +00:00
Robert Swain
4b0044b750 Reindent 
Originally committed as revision 14877 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 10:23:55 +00:00
Andreas Öman
f339908843 The comment about channel order for AAC 5.1 audio was not correct, fix it. 
Originally committed as revision 14875 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 07:57:51 +00:00
Robert Swain
7d8f3de4a8 Last hunk of the AAC decoder code to be OKed and build system and documentation 
alterations as appropriate

Originally committed as revision 14873 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-21 07:21:26 +00:00
Robert Swain
1dece0d2cd More OKed AAC decoder code hunks 
Originally committed as revision 14829 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-18 21:36:58 +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
62a57fae59 More OKed sections of AAC decoder code 
Originally committed as revision 14770 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-15 00:05:09 +00:00
Robert Swain
9edae4ad81 Synchronise code with AAC decoder in SoC 
Originally committed as revision 14695 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-11 11:22:48 +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
71e9a1b8dd OKed sections of code from the SoC AAC decoder 
Originally committed as revision 14626 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-05 19:32:01 +00:00