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158 Commits

Author SHA1 Message Date
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
Robert Swain
3ed546fe52 Add variable alpha and size of half window for Kaiser-Bessel Derived window 
generation. Hard code Bessel I0 approximation iterations to 50.

See thread for discussion:
[FFmpeg-devel] [PATCH] Move Kaiser-Bessel Derived window to mdct.c
Started on the 2008/01/10

Originally committed as revision 11520 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-13 11:02:08 +00:00
Robert Swain
4eb7a735cb Make the Kaiser-Bessel window generator a common function 
Patch by Robert Swain, robert d swain a gmail d com

Originally committed as revision 11514 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-12 11:11:19 +00:00
Justin Ruggles
f34b221bd2 used defined name for testing error resilience level 
Originally committed as revision 11478 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-08 23:44:48 +00:00
Justin Ruggles
f0b3a7ba12 split out init of downmix coeffs into a separate function that can be called 
only when needed

Originally committed as revision 11441 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-07 00:18:02 +00:00
Justin Ruggles
82a6c4811a remove unneeded variable from AC3DecodeContext 
Originally committed as revision 11439 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-06 23:56:19 +00:00
Justin Ruggles
4bc829bb8f make sure that the last coupling band stops at the end of the coupling range 
Originally committed as revision 11438 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-06 23:33:30 +00:00
Justin Ruggles
b02fbf7536 fix phase flag processing for the case when coupling coordinates are reused 
for the right channel, but new for the left channel

Originally committed as revision 11436 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-06 20:15:24 +00:00
Justin Ruggles
646800f79c move E-AC3 header parsing to ff_ac3_parse_header() 
Originally committed as revision 11420 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-05 18:39:55 +00:00
Justin Ruggles
86ad4c7e1b remove unneeded variables from AC3HeaderInfo 
Originally committed as revision 11419 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-05 17:04:57 +00:00
Justin Ruggles
2816d32310 cosmetics: indentation 
Originally committed as revision 11416 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-05 15:23:39 +00:00
Justin Ruggles
95283c1701 check for request_channels at codec init 
Originally committed as revision 11415 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-05 15:22:53 +00:00
Aurelien Jacobs
3abe5fbdc4 improve CRC API 
- don't export any global var
 - provide either generated or hardcoded tables

Originally committed as revision 11409 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-04 23:09:58 +00:00
Justin Ruggles
7564658bbc cosmetics: indentation and add a TODO comment 
Originally committed as revision 11389 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-04 00:39:03 +00:00
Justin Ruggles
471db688c6 only check ac3 crc if AVCodecContext.error_resilience > 0 
Originally committed as revision 11388 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-03 23:05:53 +00:00
Justin Ruggles
d6939960d5 add crc check to ac3 decoder 
Originally committed as revision 11379 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-01-03 02:26:29 +00:00
Justin Ruggles
12eaa3b760 simplify 
Originally committed as revision 11360 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 22:58:20 +00:00
Justin Ruggles
b35c67e58b pass an AC3DecodeContext to ac3_downmix() instead of multiple arguments 
Originally committed as revision 11359 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 22:28:17 +00:00
Justin Ruggles
866181e5e8 cosmetics: rename sampling_rate to sample_rate 
Originally committed as revision 11358 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 21:26:30 +00:00
Justin Ruggles
0345fade94 do not need to cast a (void *) 
Originally committed as revision 11357 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 21:24:49 +00:00
Justin Ruggles
1b70d88b7a cosmetics: vertical realignment after last commit 
Originally committed as revision 11356 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 21:09:08 +00:00
Justin Ruggles
d802d7ca12 cosmetics: rename all AC3DecodeContext variables from ctx to s 
Originally committed as revision 11355 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 20:58:50 +00:00
Justin Ruggles
23c8cb89c9 cosmetics: rename GetBitContext gb to gbc 
Originally committed as revision 11354 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 20:47:22 +00:00
Justin Ruggles
005ab694ae remove unused context variable 
Originally committed as revision 11353 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-30 03:10:18 +00:00
Justin Ruggles
1408352ada Add option for user to scale the amount of dynamic range compression which is 
applied by the audio decoder, and use that option in the AC3 decoder.

Originally committed as revision 11280 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-12-20 00:55:08 +00:00