Commit Graph

210 Commits

Author SHA1 Message Date
Justin Ruggles
6a68105e2b cosmetics: rename some functions from *get_* to *decode_*
Originally committed as revision 14988 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:24:43 +00:00
Justin Ruggles
63d72fb167 fix decoding of coupling leak info for normal AC-3
Originally committed as revision 14913 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 03:30:08 +00:00
Justin Ruggles
0569993ea4 cosmetics: indentation
Originally committed as revision 14911 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:55:52 +00:00
Justin Ruggles
6fafb0202a add some approved parts of the E-AC-3 decoder
Originally committed as revision 14910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:51:42 +00:00
Justin Ruggles
ab2a942ad8 cosmetics: indentation
Originally committed as revision 14863 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 01:02:32 +00:00
Justin Ruggles
bf09b550e6 commit the OKed parts of the E-AC-3 decoder
Originally committed as revision 14860 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:32:17 +00:00
Justin Ruggles
e630027686 get data size based on the actual data array instead of coding-in the calculation
Originally committed as revision 14859 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:15:27 +00:00
Justin Ruggles
8e33132bab rename AC3_MAX_FRAME_SIZE to AC3_FRAME_BUFFER_SIZE and increase the size
Originally committed as revision 14858 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:08:59 +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
Justin Ruggles
38c1a5c4d9 update my email address to one which does not depend on my service provider
Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-16 22:42:59 +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
ac2e556456 simd downmix
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
Loren Merritt
45d9d61889 don't mark the delayed samples for upmixing if they haven't been downmixed
Originally committed as revision 14741 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:53 +00:00
Loren Merritt
3b6516f7e7 oops, non-normalized downmix to mono contaminated add_bias for non-simd float-to-int.
Originally committed as revision 14740 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:28 +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
d46ac5bfde mdct wrapper function to match fft
Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 00:38:30 +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
5e3e40756e cosmetics: use a better function name than uncouple_channels()
Originally committed as revision 14614 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:49:01 +00:00
Justin Ruggles
022845ed05 cosmetics: change function name and comments to refer to block decoding
instead of block parsing

Originally committed as revision 14613 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:31:40 +00:00
Justin Ruggles
ba7f712c21 remove unneeded local variable
Originally committed as revision 14547 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 00:32:27 +00:00
Justin Ruggles
55aff0d901 Read bitstream parameters for E-AC-3 streams before returning an error.
Originally committed as revision 14528 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 22:29:06 +00:00
Justin Ruggles
602116df9b Hardcode the table for ungrouping 3 values in 5 bits. It will be reused by
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
Justin Ruggles
7417120b6f use the same table for ungrouping exponents and bap=2 mantissas
Originally committed as revision 14525 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 19:24:04 +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
Peter Ross
fd76c37fd9 Modify all codecs to report their supported input and output sample format(s).
Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-31 10:47:31 +00:00
Justin Ruggles
4760aec6a0 read 'coupling in use' parameter from bitstream into decoder context first,
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
Justin Ruggles
7645da9194 cosmetic: use hex value instead of decimal to show relation to 0x7FFFFF
Originally committed as revision 14290 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-19 02:54:54 +00:00
Stefano Sabatini
fe4bf37455 Make AVCodec long_names definition conditional depending on CONFIG_SMALL.
Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-12 21:50:13 +00:00
Justin Ruggles
227322b837 move rematrixing band table to ac3dec_data.c
Originally committed as revision 13716 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-08 21:09:02 +00:00
Justin Ruggles
4397d95ce0 split up header parsing function
Originally committed as revision 13705 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:51 +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
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
Justin Ruggles
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.
Originally committed as revision 13696 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:09 +00:00
Justin Ruggles
caf0fbc889 add more gain levels and adjust mix level tables accordingly.
Originally committed as revision 13695 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:03 +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
4921bbbae5 cosmetics: indent
Originally committed as revision 13692 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:38 +00:00
Justin Ruggles
aa5d6be8df skip unsupported frame types and substream id's
Originally committed as revision 13691 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:27 +00:00
Justin Ruggles
be5f17b96b read frame type from header info into decode context
Originally committed as revision 13690 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:19 +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
7af26d14ac return error on frame sync error
Originally committed as revision 13654 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-04 00:31:20 +00:00
Justin Ruggles
fb2b88a816 cosmetics: add a comment, remove a comment
Originally committed as revision 13590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:49 +00:00
Justin Ruggles
9b57545934 simplify
Originally committed as revision 13589 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:01 +00:00
Justin Ruggles
6e74513a48 set lfe params at frame init instead of in every block
Originally committed as revision 13588 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:57:45 +00:00
Justin Ruggles
b85a15fe73 only calculate number of exponent groups when exponents are not reused.
Originally committed as revision 13587 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:53:31 +00:00
Justin Ruggles
aa148649a4 cosmetics: remove unneeded braces
Originally committed as revision 13586 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:37:28 +00:00