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182 Commits

Author SHA1 Message Date
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
Justin Ruggles
7e13b31c19 10l: cosmetics 
Originally committed as revision 13585 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-31 19:59:10 +00:00
Justin Ruggles
e25973a1fd new dba values requires running last 2 bit allocation stages 
Originally committed as revision 13584 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-31 19:56:54 +00:00
Justin Ruggles
ff5d419e2f get_transform_coeffs() never returns an error, so make the function and its children return void. 
Originally committed as revision 13582 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-31 16:04:41 +00:00
Justin Ruggles
fbe52e4188 use enum value for CRC error 
Originally committed as revision 13580 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-31 15:31:57 +00:00
Justin Ruggles
c78c6d6c58 move header error logging to after CRC check 
Originally committed as revision 13579 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-31 15:30:55 +00:00
Justin Ruggles
bd98e9e230 zero the upper frequencies of the correct coefficients 
Originally committed as revision 13452 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-27 00:43:39 +00:00
Justin Ruggles
eccba2bc4b safer solution for setting audio parameters 
Originally committed as revision 13402 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 20:02:24 +00:00
Justin Ruggles
cf03a8173a set audio parameters if frame header is ok, even if crc fails 
Originally committed as revision 13399 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 18:54:17 +00:00
Justin Ruggles
3336110acf cosmetics: indent 
Originally committed as revision 13398 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 18:06:01 +00:00
Justin Ruggles
ecfe94b294 add error concealment 
Originally committed as revision 13397 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 18:05:15 +00:00
Justin Ruggles
93a2c8c14f cosmetics: indent 
Originally committed as revision 13385 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 16:20:06 +00:00
Justin Ruggles
43ad93a4f1 10l: fix error in commit r13382 
Originally committed as revision 13384 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 16:19:44 +00:00
Justin Ruggles
82a591d8d1 add checks for missing information in the first block 
Originally committed as revision 13382 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 15:34:48 +00:00
Justin Ruggles
3af9131398 add check for invalid channel mode when coupling is used 
Originally committed as revision 13381 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-25 15:23:03 +00:00
Diego Biurrun
245976da2a Use full path for #includes from another directory. 
Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-09 11:56:36 +00:00
Stefano Sabatini
162d4fc99d Add long names to AVCodec declarations. 
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
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
Justin Ruggles
509fdb0b7e only allocate context input buffer if AVCodecContext.error_reslience is greater than 0. 
Originally committed as revision 12600 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-26 22:36:41 +00:00
Justin Ruggles
984ff38a2b cosmetics: indentation after last commit 
Originally committed as revision 12594 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-25 23:34:49 +00:00
Justin Ruggles
c33a196716 additional protection from segmentation faults and memory access errors by 
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
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
Zuxy Meng
98a6fff98c Apply 'cold' attribute to init/uninit functions in libavcodec 
Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-21 03:11:20 +00:00
Justin Ruggles
98f6dfa653 make input buffer const, as it should be. fixes a warning. 
Originally committed as revision 12418 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-10 21:59:30 +00:00
Justin Ruggles
38dae9c3a6 downmix before imdct unless different size transforms are used. about 20% 
faster 5.1-to-stereo downmixing.

Originally committed as revision 12397 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-09 17:05:19 +00:00
Justin Ruggles
d8870f120e use scale factor instead of sum for downmix level adjustment. avoids division 
inside downmix loop. 7% faster 5.1-to-stereo downmixing.

Originally committed as revision 12287 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-01 16:10:19 +00:00
Justin Ruggles
9d10e6e6c0 pre-calculate downmix coefficient sums. 2% faster 5.1-to-stereo downmixing. 
Originally committed as revision 12286 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-01 15:48:18 +00:00
Justin Ruggles
a4de6dd2c1 Use 24-bit fixed-point transform coefficients until just before MDCT. This 
gives 7% faster decoding on average.

Originally committed as revision 12284 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-01 04:39:39 +00:00