3798205a77
mov: set channel layout for AC-3 streams based on the 'dac3' atom info
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fixes Bug 225
2012-02-22 20:07:02 -05:00
7f3a7b5c40
ac3enc: add channel coupling support
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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
6d9f52b2cd
ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-29 19:31:45 +01:00
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
21c900129c
ac3: remove ff_ac3_critical_band_size_tab[] external declaration
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This fixes compilation broken by 6ed3b504f9
2011-01-25 15:50:51 +00:00
dc7e07ac1f
Add stereo rematrixing support to the AC-3 encoders.
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This improves the audio quality significantly for stereo source with both the
fixed-point and floating-point AC-3 encoders.
Update acodec-ac3_fixed and seek-ac3_rm test references.
Originally committed as revision 26271 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-08 23:21:17 +00:00
e0b9f94b39
cosmetics: use some size macros in ac3tab.c/h
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Originally committed as revision 25969 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-12-14 14:51:47 +00:00
bfeca7beb6
Add channel layout support to the AC-3 decoder and AC-3 parser.
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Originally committed as revision 18622 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-19 15:05:32 +00:00
95f3019a51
ac3dec: reorder output channels to SMPTE channel order
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Originally committed as revision 18542 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-17 08:43:04 +00:00
a7c6e1171b
ac3enc: reorder input channels to AC-3 channel order
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Originally committed as revision 18540 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-17 08:39:11 +00:00
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
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Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-19 15:46:40 +00:00
987903826b
Globally rename the header inclusion guard names.
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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
14b7062829
cosmetics: make all references to AC-3 capitalized and hyphenated
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Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 16:42:32 +00:00
245976da2a
Use full path for #includes from another directory.
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Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-09 11:56:36 +00:00
0c79b1402a
add a ff_ac3_parse_header_full() which calls ff_ac3_parse_header()
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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
66ecf18e38
cosmetics: rename ac3 tables
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Originally committed as revision 11193 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-09 03:21:33 +00:00
5b21bdabe4
Add FFMPEG_ prefix to all multiple inclusion guards.
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Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-10-17 09:37:46 +00:00
cd53ae3a65
cosmetics: align
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Originally committed as revision 8817 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-25 22:16:50 +00:00
7adb10bedf
move ac3 tables from a .h to a .c
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Originally committed as revision 8816 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-25 22:12:51 +00:00
495529f7df
hardcode ff_ac3_frame_sizes table
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Originally committed as revision 8435 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-18 04:53:21 +00:00
050aa8b9bc
remove redundancy in AC-3 parser by using common tables from ac3tab.h
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Originally committed as revision 8318 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-11 02:13:05 +00:00
4258a0a32a
Remove common code from AC-3 encoder and utilize ac3.c.
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Originally committed as revision 8306 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-09 13:57:42 +00:00
b78e7197a8
Change license headers to say 'FFmpeg' instead of 'this program/this library'
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and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-07 15:30:46 +00:00
04d7f60143
Add official LGPL license headers to the files that were missing them.
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Originally committed as revision 6219 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-09-10 14:02:42 +00:00
1df051e197
Fix 2 bit allocation bugs. One fix enables using a higher bandwidth code. The other fixes an issue with floorcod=7.
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Originally committed as revision 6156 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-09-03 15:59:08 +00:00
6eb1427f0f
Revert bad ac3enc commit, the commited code was bigger and slower.
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Originally committed as revision 5327 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-04-28 14:19:11 +00:00
176c142abc
Patch to generate the ac3 window, based on code by Justin Ruggles.
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Originally committed as revision 5310 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-04-22 21:21:16 +00:00
e027d0a81e
switch ac3enc to av_crc
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Originally committed as revision 5116 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-03-06 14:53:13 +00:00
115329f160
COSMETICS: Remove all trailing whitespace.
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Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-17 18:14:38 +00:00
0c2a9d56d4
make the tables static
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Originally committed as revision 3255 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-26 10:08:49 +00:00
983e3246b7
per file doxy
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Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-03-06 11:32:04 +00:00
0c1a9edad4
* UINTX -> uintx_t INTX -> intx_t
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Originally committed as revision 1578 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-11 16:35:48 +00:00
6107fa87b4
preparing integration of new AC3 decoder
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Originally committed as revision 1089 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-10-28 00:39:05 +00:00
de6d9b6404
Initial revision
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Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-07-22 14:18:56 +00:00
Justin Ruggles
Mans Rullgard
Diego Biurrun
Stefano Sabatini
Bartlomiej Wolowiec
Aurelien Jacobs
Benjamin Larsson
Michael Niedermayer
Alex Beregszaszi
Zdenek Kabelac
Fabrice Bellard