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39 Commits

Author SHA1 Message Date
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
01b2214758 Merge FFTContext and MDCTContext 
Originally committed as revision 19931 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-20 17:30:20 +00:00
Justin Ruggles
bb5b99a789 cosmetics: move fixed_coeffs into the aligned arrays comment group 
Originally committed as revision 19590 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-08-05 02:37:49 +00:00
Justin Ruggles
3f93716809 Modify decode_band_structure() so that the actual band structure is only 
used within the function.  This removes the need to have the coupling band
structure stored in the AC3DecodeContext.

Originally committed as revision 19585 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-08-05 01:13:42 +00:00
Justin Ruggles
603139022d Use coupling band sizes instead of coupling band structure when 
calculating coupling transform coefficients.

Originally committed as revision 19584 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-08-05 01:00:41 +00:00
Diego Biurrun
477ffff218 The internal header libavutil/internal.h should not be used outside libavutil. 
Originally committed as revision 19157 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-11 20:18:29 +00:00
Justin Ruggles
396b73c7f7 ac3dec: Remove unneeded context variable, num_cpl_subbands. It is also 
not needed for spectral extension or enhanced coupling since it is
redundant information, so I am removing it from decode_band_structure()
as well.

Originally committed as revision 18751 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-06 01:47:34 +00:00
Justin Ruggles
bfeca7beb6 Add channel layout support to the AC-3 decoder and AC-3 parser. 
Originally committed as revision 18622 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-19 15:05:32 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
Diego Biurrun
30f68128ab Add missing #includes to fix 'make checkheaders'. 
Originally committed as revision 17398 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-17 21:43:57 +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
Justin Ruggles
e202cc2580 revert r15812 (E-AC-3 Spectral Extension) pending further review 
Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-13 22:38:38 +00:00
Justin Ruggles
0cc51734b2 add support for spectral extension 
Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-13 03:18:13 +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
Justin Ruggles
260e09305b remove unneeded variable, dither_all 
Originally committed as revision 15011 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-28 23:04:15 +00:00
Justin Ruggles
8649e9332c add definitions and documentation for shared functions for E-AC-3 decoding 
Originally committed as revision 14991 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-27 01:47:03 +00:00
Justin Ruggles
0ffea2439b copy default coupling band structure from table to decoding context (used for E-AC-3) 
Originally committed as revision 14990 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-27 01:40:46 +00:00
Justin Ruggles
c5b930e674 1000l to me. committed to wrong repo. revert last commit. 
Originally committed as revision 14953 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-24 22:57:25 +00:00
Justin Ruggles
e23e4de3ae cosmetics: rename some functions from *get_* to *decode_* 
Originally committed as revision 14952 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-24 22:55:08 +00:00
Justin Ruggles
46dd2738ae remove some unneeded header includes 
Originally committed as revision 14819 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-17 19:56:28 +00:00
Justin Ruggles
ec0350c983 use LFG instead of Mersenne Twister for AC-3 PRNG 
Originally committed as revision 14815 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-17 17:41:48 +00:00
Loren Merritt
911e21a306 simd int->float 
20% faster ac3 if downmixing, 15% if not

Originally committed as revision 14743 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-13 23:35:40 +00:00
Loren Merritt
557ac0c448 optimize ac3_downmix. 
1.3x faster 5.1->stereo, 1.9x faster 5.1->mono.

Originally committed as revision 14719 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 23:45:46 +00:00
Loren Merritt
72745cff20 use float_to_int16_interleave in ac3 
Originally committed as revision 14706 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 03:01:17 +00:00
Loren Merritt
916d5d6c32 use imdct_half in ac3 
Originally committed as revision 14705 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 01:30:24 +00:00
Loren Merritt
0a570e826d remove mdct tmp buffer 
Originally committed as revision 14702 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 00:36:36 +00:00
Justin Ruggles
14b7062829 cosmetics: make all references to AC-3 capitalized and hyphenated 
Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-03 16:42:32 +00:00
Justin Ruggles
1db9da5238 cosmetics: vertical alignment 
Originally committed as revision 14516 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-03 02:16:51 +00:00
Justin Ruggles
a52d8c6b32 use MAX_BLOCKS for array size instead of 6 
Originally committed as revision 14515 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-03 02:16:21 +00:00
Justin Ruggles
a42c895207 rearrange dimensions of pre_mantissa array 
Originally committed as revision 14514 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-03 02:11:46 +00:00
Justin Ruggles
bddadace8d add fields needed for E-AC-3 decoding to decode context 
Originally committed as revision 13714 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-08 21:08:53 +00:00
Justin Ruggles
da04be10a2 store exp_strategy for all blocks in decode context 
Originally committed as revision 13704 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:47 +00:00
Justin Ruggles
54624396fc store cpl_in_use for all blocks in decode context 
Originally committed as revision 13703 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:43 +00:00
Justin Ruggles
be594ae4b4 cosmetics: add and align references to spec variable names 
Originally committed as revision 13702 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:39 +00:00
Justin Ruggles
d7a0ae079c cosmetics: vertical align 
Originally committed as revision 13701 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:35 +00:00
Justin Ruggles
83ce7ff6ca use macro constants for array sizes in decode context 
Originally committed as revision 13700 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:31 +00:00
Justin Ruggles
2288596074 cosmetics: vertical align 
Originally committed as revision 13699 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:26 +00:00
Justin Ruggles
2c4c2afaca cosmetics: reorder decode context fields into logical groups 
Originally committed as revision 13698 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:22 +00:00
Justin Ruggles
58ce349f0a move the decode context and some macro constants to a new file, ac3dec.h 
Originally committed as revision 13697 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:30:16 +00:00