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59 Commits

Author SHA1 Message Date
Tim Walker
9c0e4b3395 ac3: update AC3PreferredStereoDownmixMode. 
'11b' is reserved in the A/52 specification,
but newer encoders use it to indicate a Dolby
Pro Logic II compatible Lt/Rt downmix.
 2014-02-15 22:24:48 +01:00
Tim Walker
c229f571fd (e)ac3: parse and store the Lt/Rt and LFE mix levels. 2014-01-19 19:12:42 +01:00
Tim Walker
13345fc1f8 (e)ac3: parse and store the Dolby Surround, Surround EX and Headphone mode flags. 2014-01-05 16:41:56 +01:00
Diego Biurrun
e4cbf7529b Give all anonymously typedeffed structs in headers a name 
Anonymous structs cannot be forward declared and have no benefit.
 2012-10-06 09:27:11 +02:00
Mans Rullgard
cc276c85d1 Make channel layout masks unsigned 
It makes more sense for a bit mask to use an unsigned type.
The change should be source and binary compatible on all
supported systems, hence micro version bump.

Fixes a few invalid shifts.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-11-25 13:19:54 +00:00
Reinhard Tartler
21a19b7912 doxygen: Prefer member groups over grouping into modules 
Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.

Additionally, this commit streamlines some spelling and appearances.
 2011-07-02 13:52:29 +02:00
Justin Ruggles
7f3a7b5c40 ac3enc: add channel coupling support 
Channel coupling is an optional AC-3 feature that increases quality by
combining high frequency information from multiple channels into a
single channel. The per-channel high frequency information is sent with
less accuracy in both the frequency and time domains. This allows more
bits to be used for lower frequencies while preserving enough
information to reconstruct the high frequencies.
 2011-05-24 07:52:31 +02:00
Mans Rullgard
6d9f52b2cd ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-29 19:31:45 +01:00
Justin Ruggles
991f3de1bb ac3enc: Add codec-specific options for writing AC-3 metadata. 2011-03-27 11:30:09 -04:00
Justin Ruggles
be18738801 Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parser 
and decoder, and vice-versa for the AC-3 encoder.
 2011-03-25 16:59:00 -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
Justin Ruggles
b35743ffb4 ac3: define AC3_MAX_CPL_BANDS and use it in ac3dec.h 2011-03-04 16:48:09 -05:00
Justin Ruggles
4c57cde942 Add ff_ prefix to ac3_common_init(). 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 15:35:27 +00:00
Diego Elio Pettenò
362bfe2997 Remove unused ac3_parametric_bit_allocation function. 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-25 15:09:46 +00:00
Justin Ruggles
e0b9f94b39 cosmetics: use some size macros in ac3tab.c/h 
Originally committed as revision 25969 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-14 14:51:47 +00:00
Justin Ruggles
47ae6e795b define AC3_CRITICAL_BANDS and use it in the AC-3 encoder and decoder. 
Originally committed as revision 25967 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-14 14:51:40 +00:00
Justin Ruggles
1fda2c10f6 cosmetics: Define AC3_WINDOW_SIZE and use it instead of AC3_BLOCK_SIZE*2. 
Originally committed as revision 25951 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-14 14:50:40 +00:00
Justin Ruggles
7066cc8f2b cosmetics: use better (and shared) macro names for some constant values 
Originally committed as revision 25950 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-12-14 14:50:34 +00:00
Måns Rullgård
49bd8e4b84 Fix grammar errors in documentation 
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 15:38:06 +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
Stefano Sabatini
bf7e799c9e Remove '\p', '\c' and '\e' doxygen markup from doxy, as it should 
improve plain text doxy readability.

See the thread: "[RFC] Should we use doxygen markup?".

Originally committed as revision 19122 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-06 09:35:15 +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
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
Diego Biurrun
406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences. 
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-19 15:46:40 +00:00
Justin Ruggles
20e047262f cosmetics: alignment after last commit 
Originally committed as revision 16035 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-08 03:15:10 +00:00
Justin Ruggles
72a6244b5d ac3: detect dba errors and prevent writing past end of array 
Originally committed as revision 16034 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-08 03:13:20 +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
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
687671f03b pass bap table to ff_ac3_bit_alloc_calc_bap() 
Originally committed as revision 13694 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:29:54 +00:00
Justin Ruggles
3596aa6fe6 get substreamid from ac3 parser 
Originally committed as revision 13689 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:29:11 +00:00
Justin Ruggles
6730e9f300 get the number of blocks from the ac3 parser and use in the ac3 decoder. 
Originally committed as revision 13688 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-07 22:29:03 +00:00
Justin Ruggles
406113721f move some AC3HeaderInfo struct fields to the Coded elements group. 
Originally committed as revision 13612 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-02 02:54:46 +00:00
Bartlomiej Wolowiec
0c79b1402a add a ff_ac3_parse_header_full() which calls ff_ac3_parse_header() 
and then reads the channel_map stuff

Originally committed as revision 12944 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-24 22:27:13 +00:00
Bartlomiej Wolowiec
55736cfbd2 change ff_ac3_parse_header() to take a GetBitContext instead of const char* 
Originally committed as revision 12922 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-22 11:14:01 +00:00
Bartlomiej Wolowiec
79b25a27b8 change name from stream type to frame type in AC3 code 
Originally committed as revision 12623 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-28 20:42:55 +00:00
Bartlomiej Wolowiec
4e6eeaf019 using stream type in eac3 parser 
Originally committed as revision 12570 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-24 21:25:49 +00:00
Justin Ruggles
86ad4c7e1b remove unneeded variables from AC3HeaderInfo 
Originally committed as revision 11419 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-05 17:04:57 +00:00
Justin Ruggles
e59cc20593 cosmetics: rename common ac3 variables 
Originally committed as revision 11196 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-09 03:27:14 +00:00
Justin Ruggles
8001d92345 cosmetics: vertical align after last commit 
Originally committed as revision 11195 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-09 03:25:42 +00:00
Justin Ruggles
5ce2134258 cosmetics: rename ac3 bit allocation variables 
Originally committed as revision 11194 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-09 03:23:04 +00:00
Diego Biurrun
5b21bdabe4 Add FFMPEG_ prefix to all multiple inclusion guards. 
Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-10-17 09:37:46 +00:00
Justin Ruggles
cc2a8443eb move some common values to ac3.h and utilize them 
Originally committed as revision 9679 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 01:31:09 +00:00
Aurelien Jacobs
e0fe500f01 avoid multiple inclusion of ac3.h 
Originally committed as revision 8940 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-05-08 23:24:22 +00:00
Aurelien Jacobs
7adb10bedf move ac3 tables from a .h to a .c 
Originally committed as revision 8816 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-04-25 22:12:51 +00:00
Diego Biurrun
98d0205145 Move AC3 header parsing code together with the rest of the AC3 parsing code. 
Originally committed as revision 8739 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-04-15 12:32:36 +00:00
Justin Ruggles
575bf46f16 split ac3_parametric_bit_allocation into 3 separate functions 
Originally committed as revision 8442 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-18 21:43:20 +00:00
Justin Ruggles
495529f7df hardcode ff_ac3_frame_sizes table 
Originally committed as revision 8435 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-18 04:53:21 +00:00
Justin Ruggles
2476139973 move AC-3 header parsing to ac3.c 
Originally committed as revision 8323 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-11 16:44:14 +00:00
Justin Ruggles
050aa8b9bc remove redundancy in AC-3 parser by using common tables from ac3tab.h 
Originally committed as revision 8318 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-11 02:13:05 +00:00
Justin Ruggles
4258a0a32a Remove common code from AC-3 encoder and utilize ac3.c. 
Originally committed as revision 8306 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-09 13:57:42 +00:00