Alex Converse
fbdae895f2
Rename variables to clarify the channel coupling element and corresponding
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target channel element.
Patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15575 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-06 16:22:11 +00:00
Alex Converse
88de95c2f9
Corrections to channel coupling code to attain conformance for appropriate
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streams.
Slightly reworked from a patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15573 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-06 16:12:30 +00:00
Robert Swain
341b28c0d2
Zero 'idx' for each iteration of the coupling gain loop and as it is only used
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within this loop, we can move its declaration there too. This fixes bitstream
desync when decoding streams containing CCEs.
Based on a patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15364 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-18 16:02:51 +00:00
Robert Swain
f80a8ca5cb
Cosmetics: missing brackets
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Originally committed as revision 15363 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-18 15:48:37 +00:00
Alex Converse
c8947a5612
Cast the return value of get_bits() to signed integer such that the subtraction
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is conducted as a signed calculation.
Patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15362 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-18 15:35:08 +00:00
Alex Converse
aac0eda407
Validate pulse position and error out if an invalid position is encountered.
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Patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15340 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-16 15:59:43 +00:00
Robert Swain
70735a3f9e
Reindent after last commit
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Originally committed as revision 15315 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 20:52:57 +00:00
Alex Converse
5143684891
Apply pulses to unscaled coefficients rather than scaled.
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Slight reworking of a patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15314 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 20:51:36 +00:00
Robert Swain
408992bae2
Operands of '+' are not necessarily evaluated in order so r15311 was pointless.
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Splitting the assignment onto two lines should resolve the order issue.
Originally committed as revision 15313 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 20:22:31 +00:00
Alex Converse
19645d742e
Correct order of parsing for pulse scalefactor band and offset to match the
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specification.
Patch by Alex Converse (alex converse gmail com)
Originally committed as revision 15311 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 18:47:43 +00:00
Robert Swain
35445d29f5
Reindent after last commit
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Originally committed as revision 15304 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-12 14:33:35 +00:00
Alex Converse
5167364777
Only read some of TNS bitstream data in the case that the TNS filter order is
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non-zero as per the specification.
Patch by Alex Converse (alex converse gmail com)
Fixes another issue pertaining to issue632
Originally committed as revision 15303 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-12 14:32:49 +00:00
Robert Swain
febcbd65fa
Correct pulse amplitude application - a negative or 0 coefficient implies the
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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Originally committed as revision 14880 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-21 11:29:28 +00:00
Robert Swain
4b0044b750
Reindent
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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.
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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
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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
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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
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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
62a57fae59
More OKed sections of AAC decoder code
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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
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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
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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
71e9a1b8dd
OKed sections of code from the SoC AAC decoder
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Originally committed as revision 14626 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 19:32:01 +00:00