Justin Ruggles
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.
14 years ago
Michael Niedermayer
1aeb88b77d
Correctly implement ac3 float/fixed encoder.
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There is no need to have 2 encoders, the input sample format can,does and should choose which is used
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Mans Rullgard
6d9f52b2cd
ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
991f3de1bb
ac3enc: Add codec-specific options for writing AC-3 metadata.
14 years ago
Justin Ruggles
be18738801
Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parser
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and decoder, and vice-versa for the AC-3 encoder.
14 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
12dffc4502
ac3: define AC3_MAX_CPL_BANDS and use it in ac3dec.h
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(cherry picked from commit b35743ffb4
)
14 years ago
Justin Ruggles
b35743ffb4
ac3: define AC3_MAX_CPL_BANDS and use it in ac3dec.h
14 years ago
Justin Ruggles
dff80041e3
Add ff_ prefix to ac3_common_init().
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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 4c57cde942
)
14 years ago
Justin Ruggles
4c57cde942
Add ff_ prefix to ac3_common_init().
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Diego Elio Pettenò
a172126c38
Remove unused ac3_parametric_bit_allocation function.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 362bfe2997
)
14 years ago
Diego Elio Pettenò
362bfe2997
Remove unused ac3_parametric_bit_allocation function.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
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
14 years ago
Justin Ruggles
47ae6e795b
define AC3_CRITICAL_BANDS and use it in the AC-3 encoder and decoder.
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Originally committed as revision 25967 to svn://svn.ffmpeg.org/ffmpeg/trunk
14 years ago
Justin Ruggles
1fda2c10f6
cosmetics: Define AC3_WINDOW_SIZE and use it instead of AC3_BLOCK_SIZE*2.
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Originally committed as revision 25951 to svn://svn.ffmpeg.org/ffmpeg/trunk
14 years ago
Justin Ruggles
7066cc8f2b
cosmetics: use better (and shared) macro names for some constant values
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Originally committed as revision 25950 to svn://svn.ffmpeg.org/ffmpeg/trunk
14 years ago
Måns Rullgård
49bd8e4b84
Fix grammar errors in documentation
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Diego Biurrun
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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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
15 years ago
Stefano Sabatini
bf7e799c9e
Remove '\p', '\c' and '\e' doxygen markup from doxy, as it should
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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
16 years ago
Justin Ruggles
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
16 years ago
Diego Biurrun
bad5537e2c
Use full internal pathname in doxygen @file directives.
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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
16 years ago
Diego Biurrun
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
16 years ago
Justin Ruggles
20e047262f
cosmetics: alignment after last commit
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Originally committed as revision 16035 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Justin Ruggles
72a6244b5d
ac3: detect dba errors and prevent writing past end of array
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Originally committed as revision 16034 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Stefano Sabatini
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
17 years ago
Justin Ruggles
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
17 years ago
Justin Ruggles
687671f03b
pass bap table to ff_ac3_bit_alloc_calc_bap()
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Originally committed as revision 13694 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
3596aa6fe6
get substreamid from ac3 parser
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Originally committed as revision 13689 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
6730e9f300
get the number of blocks from the ac3 parser and use in the ac3 decoder.
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Originally committed as revision 13688 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
406113721f
move some AC3HeaderInfo struct fields to the Coded elements group.
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Originally committed as revision 13612 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Bartlomiej Wolowiec
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
17 years ago
Bartlomiej Wolowiec
55736cfbd2
change ff_ac3_parse_header() to take a GetBitContext instead of const char*
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Originally committed as revision 12922 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Bartlomiej Wolowiec
79b25a27b8
change name from stream type to frame type in AC3 code
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Originally committed as revision 12623 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Bartlomiej Wolowiec
4e6eeaf019
using stream type in eac3 parser
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Originally committed as revision 12570 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
86ad4c7e1b
remove unneeded variables from AC3HeaderInfo
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Originally committed as revision 11419 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
e59cc20593
cosmetics: rename common ac3 variables
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Originally committed as revision 11196 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
8001d92345
cosmetics: vertical align after last commit
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Originally committed as revision 11195 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Justin Ruggles
5ce2134258
cosmetics: rename ac3 bit allocation variables
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Originally committed as revision 11194 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
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
17 years ago
Justin Ruggles
cc2a8443eb
move some common values to ac3.h and utilize them
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Originally committed as revision 9679 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Aurelien Jacobs
e0fe500f01
avoid multiple inclusion of ac3.h
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Originally committed as revision 8940 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Aurelien Jacobs
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
18 years ago
Diego Biurrun
98d0205145
Move AC3 header parsing code together with the rest of the AC3 parsing code.
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Originally committed as revision 8739 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Justin Ruggles
575bf46f16
split ac3_parametric_bit_allocation into 3 separate functions
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Originally committed as revision 8442 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Justin Ruggles
495529f7df
hardcode ff_ac3_frame_sizes table
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Originally committed as revision 8435 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Justin Ruggles
2476139973
move AC-3 header parsing to ac3.c
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Originally committed as revision 8323 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Justin Ruggles
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
18 years ago
Justin Ruggles
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
18 years ago
Måns Rullgård
486497e07b
revert bad checkin
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Originally committed as revision 7044 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Måns Rullgård
be6ed6fff4
move some CFLAGS settings away from config.* writing section
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Originally committed as revision 7043 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago