ce7d842fa6
ac3dec: detect out-of-range exponents
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Originally committed as revision 16015 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 15:36:23 +00:00
f23dc1e1f9
silence gcc warning: ‘n_bands’ may be used uninitialized
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Originally committed as revision 15999 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-04 02:56:25 +00:00
75b53b2123
ac3dec: use uint8_t for band sizes
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Originally committed as revision 15998 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-04 02:51:39 +00:00
af2272b209
ac3dec: skip decoding and use error concealment for remaining blocks in
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the frame after an error occurs.
Originally committed as revision 15987 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-03 03:34:31 +00:00
e202cc2580
revert r15812 (E-AC-3 Spectral Extension) pending further review
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Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 22:38:38 +00:00
3f3ca7ac07
cosmetics: vertical alignment
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Originally committed as revision 15815 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:28 +00:00
c763f86728
silence a gcc warning about using an uninitialized variable
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Originally committed as revision 15814 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:24 +00:00
66561189a1
cosmetics: indentation
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Originally committed as revision 15813 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:18 +00:00
0cc51734b2
add support for spectral extension
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Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:13 +00:00
0c5d750df9
add a generic function to decode banding structure for coupling, spectral
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extension, or enhanced coupling
Originally committed as revision 15811 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:07 +00:00
6c6f927289
add a line break in error message text
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Originally committed as revision 15810 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:01 +00:00
6ee6d068f7
simplify decoding of coupling frequency range
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Originally committed as revision 15809 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:17:56 +00:00
24834c1928
cosmetics: rename two variables
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Originally committed as revision 15808 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:17:50 +00:00
047599a4ba
Rename error_resilience to error_recognition.
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Originally committed as revision 15270 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-08 18:18:49 +00:00
2988c93d94
create a separate codec_id for E-AC-3
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Originally committed as revision 15143 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-01 14:33:54 +00:00
1f6a594de4
turn on E-AC-3 decoding support and update the Changelog
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Originally committed as revision 15103 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 03:08:18 +00:00
f2e4eb62dc
cosmetics: indentation
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Originally committed as revision 15089 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 02:32:08 +00:00
8dfc56ec32
commit more OKed parts of the E-AC-3 decoder
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Originally committed as revision 15087 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 02:30:09 +00:00
225c30429d
commit more OKed parts of the E-AC-3 decoder
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Originally committed as revision 15068 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 23:19:23 +00:00
ea364c74a0
cosmetics: update comment about dithering
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Originally committed as revision 15051 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 17:51:03 +00:00
e522bd49c8
cosmetics: change another "get" to "decode"
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Originally committed as revision 15014 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 00:09:47 +00:00
164e169fef
cosmetics: change "get" to "decode"
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Originally committed as revision 15013 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 00:06:43 +00:00
86662b1c89
cosmetics: indentation
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Originally committed as revision 15012 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-28 23:16:21 +00:00
260e09305b
remove unneeded variable, dither_all
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Originally committed as revision 15011 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-28 23:04:15 +00:00
aec0407faf
cosmetics: indent after last commit
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Originally committed as revision 15001 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 23:23:54 +00:00
6b4bfed965
do not read exponent strategies from each block for E-AC-3 since they are in the header
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Originally committed as revision 15000 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 23:11:05 +00:00
0ffea2439b
copy default coupling band structure from table to decoding context (used for E-AC-3)
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Originally committed as revision 14990 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:40:46 +00:00
e43b29ab26
add more OKed parts of the E-AC-3 decoder: structural changes to support AHT mode mantissa decoding
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Originally committed as revision 14989 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:36:20 +00:00
6a68105e2b
cosmetics: rename some functions from *get_* to *decode_*
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Originally committed as revision 14988 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:24:43 +00:00
63d72fb167
fix decoding of coupling leak info for normal AC-3
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Originally committed as revision 14913 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 03:30:08 +00:00
0569993ea4
cosmetics: indentation
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Originally committed as revision 14911 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:55:52 +00:00
6fafb0202a
add some approved parts of the E-AC-3 decoder
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Originally committed as revision 14910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:51:42 +00:00
ab2a942ad8
cosmetics: indentation
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Originally committed as revision 14863 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 01:02:32 +00:00
bf09b550e6
commit the OKed parts of the E-AC-3 decoder
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Originally committed as revision 14860 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:32:17 +00:00
e630027686
get data size based on the actual data array instead of coding-in the calculation
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Originally committed as revision 14859 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:15:27 +00:00
8e33132bab
rename AC3_MAX_FRAME_SIZE to AC3_FRAME_BUFFER_SIZE and increase the size
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Originally committed as revision 14858 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:08:59 +00:00
46dd2738ae
remove some unneeded header includes
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Originally committed as revision 14819 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-17 19:56:28 +00:00
ec0350c983
use LFG instead of Mersenne Twister for AC-3 PRNG
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Originally committed as revision 14815 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-17 17:41:48 +00:00
38c1a5c4d9
update my email address to one which does not depend on my service provider
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Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-16 22:42:59 +00:00
911e21a306
simd int->float
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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
ac2e556456
simd downmix
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13% faster ac3 if downmixing
Originally committed as revision 14742 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:33:48 +00:00
45d9d61889
don't mark the delayed samples for upmixing if they haven't been downmixed
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Originally committed as revision 14741 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:53 +00:00
3b6516f7e7
oops, non-normalized downmix to mono contaminated add_bias for non-simd float-to-int.
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Originally committed as revision 14740 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:28 +00:00
557ac0c448
optimize ac3_downmix.
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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
72745cff20
use float_to_int16_interleave in ac3
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Originally committed as revision 14706 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 03:01:17 +00:00
916d5d6c32
use imdct_half in ac3
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Originally committed as revision 14705 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 01:30:24 +00:00
d46ac5bfde
mdct wrapper function to match fft
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Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 00:38:30 +00:00
0a570e826d
remove mdct tmp buffer
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Originally committed as revision 14702 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 00:36:36 +00:00
5e3e40756e
cosmetics: use a better function name than uncouple_channels()
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Originally committed as revision 14614 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:49:01 +00:00
022845ed05
cosmetics: change function name and comments to refer to block decoding
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instead of block parsing
Originally committed as revision 14613 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:31:40 +00:00
ba7f712c21
remove unneeded local variable
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Originally committed as revision 14547 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 00:32:27 +00:00
55aff0d901
Read bitstream parameters for E-AC-3 streams before returning an error.
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Originally committed as revision 14528 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 22:29:06 +00:00
602116df9b
Hardcode the table for ungrouping 3 values in 5 bits. It will be reused by
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the E-AC-3 decoder.
Originally committed as revision 14527 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 21:42:43 +00:00
7417120b6f
use the same table for ungrouping exponents and bap=2 mantissas
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Originally committed as revision 14525 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 19:24:04 +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
fd76c37fd9
Modify all codecs to report their supported input and output sample format(s).
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Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-31 10:47:31 +00:00
4760aec6a0
read 'coupling in use' parameter from bitstream into decoder context first,
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then copy to the local variable.
Originally committed as revision 14311 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-19 22:01:46 +00:00
7645da9194
cosmetic: use hex value instead of decimal to show relation to 0x7FFFFF
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Originally committed as revision 14290 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-19 02:54:54 +00:00
fe4bf37455
Make AVCodec long_names definition conditional depending on CONFIG_SMALL.
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Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-12 21:50:13 +00:00
227322b837
move rematrixing band table to ac3dec_data.c
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Originally committed as revision 13716 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-08 21:09:02 +00:00
4397d95ce0
split up header parsing function
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Originally committed as revision 13705 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:51 +00:00
da04be10a2
store exp_strategy for all blocks in decode context
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Originally committed as revision 13704 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:47 +00:00
54624396fc
store cpl_in_use for all blocks in decode context
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Originally committed as revision 13703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:43 +00:00
58ce349f0a
move the decode context and some macro constants to a new file, ac3dec.h
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Originally committed as revision 13697 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:16 +00:00
30f71adc46
move mix level tables from parser to decoder. have parser read bitstream value instead of using an index to a table in the decoder.
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Originally committed as revision 13696 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:09 +00:00
caf0fbc889
add more gain levels and adjust mix level tables accordingly.
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Originally committed as revision 13695 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:03 +00:00
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
2008-06-07 22:29:54 +00:00
4921bbbae5
cosmetics: indent
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Originally committed as revision 13692 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:38 +00:00
aa5d6be8df
skip unsupported frame types and substream id's
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Originally committed as revision 13691 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:27 +00:00
be5f17b96b
read frame type from header info into decode context
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Originally committed as revision 13690 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:19 +00:00
3596aa6fe6
get substreamid from ac3 parser
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Originally committed as revision 13689 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:11 +00:00
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
2008-06-07 22:29:03 +00:00
7af26d14ac
return error on frame sync error
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Originally committed as revision 13654 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-04 00:31:20 +00:00
fb2b88a816
cosmetics: add a comment, remove a comment
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Originally committed as revision 13590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:49 +00:00
9b57545934
simplify
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Originally committed as revision 13589 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:01 +00:00
6e74513a48
set lfe params at frame init instead of in every block
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Originally committed as revision 13588 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:57:45 +00:00
b85a15fe73
only calculate number of exponent groups when exponents are not reused.
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Originally committed as revision 13587 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:53:31 +00:00
aa148649a4
cosmetics: remove unneeded braces
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Originally committed as revision 13586 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:37:28 +00:00
7e13b31c19
10l: cosmetics
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Originally committed as revision 13585 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 19:59:10 +00:00
e25973a1fd
new dba values requires running last 2 bit allocation stages
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Originally committed as revision 13584 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 19:56:54 +00:00
ff5d419e2f
get_transform_coeffs() never returns an error, so make the function and its children return void.
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Originally committed as revision 13582 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 16:04:41 +00:00
fbe52e4188
use enum value for CRC error
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Originally committed as revision 13580 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 15:31:57 +00:00
c78c6d6c58
move header error logging to after CRC check
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Originally committed as revision 13579 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 15:30:55 +00:00
bd98e9e230
zero the upper frequencies of the correct coefficients
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Originally committed as revision 13452 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-27 00:43:39 +00:00
eccba2bc4b
safer solution for setting audio parameters
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Originally committed as revision 13402 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 20:02:24 +00:00
cf03a8173a
set audio parameters if frame header is ok, even if crc fails
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Originally committed as revision 13399 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 18:54:17 +00:00
3336110acf
cosmetics: indent
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Originally committed as revision 13398 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 18:06:01 +00:00
ecfe94b294
add error concealment
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Originally committed as revision 13397 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 18:05:15 +00:00
93a2c8c14f
cosmetics: indent
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Originally committed as revision 13385 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 16:20:06 +00:00
43ad93a4f1
10l: fix error in commit r13382
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Originally committed as revision 13384 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 16:19:44 +00:00
82a591d8d1
add checks for missing information in the first block
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Originally committed as revision 13382 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 15:34:48 +00:00
3af9131398
add check for invalid channel mode when coupling is used
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Originally committed as revision 13381 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 15:23:03 +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
162d4fc99d
Add long names to AVCodec declarations.
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patch by Stefano Sabatini, stefano.sabatini-lala poste it
Originally committed as revision 13009 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-27 22:39:51 +00:00
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
2008-04-22 11:14:01 +00:00
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
2008-03-28 20:42:55 +00:00
509fdb0b7e
only allocate context input buffer if AVCodecContext.error_reslience is greater than 0.
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Originally committed as revision 12600 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-26 22:36:41 +00:00
984ff38a2b
cosmetics: indentation after last commit
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Originally committed as revision 12594 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-25 23:34:49 +00:00
c33a196716
additional protection from segmentation faults and memory access errors by
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copying the input buffer to a local context buffer which is large enough to
hold the largest possible AC3 frame.
Originally committed as revision 12593 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-25 23:34:00 +00:00
4e6eeaf019
using stream type in eac3 parser
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Originally committed as revision 12570 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-24 21:25:49 +00:00
Justin Ruggles
Michael Niedermayer
Loren Merritt
Peter Ross
Stefano Sabatini
Diego Biurrun
Bartlomiej Wolowiec