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283 Commits

Author SHA1 Message Date
Justin Ruggles
75b9b0369b cosmetics: use more appropriate names for iterator variables. 
Originally committed as revision 9907 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 13:52:56 +00:00
Justin Ruggles
8e2eb3b674 move some variables to a more local scope. 
Originally committed as revision 9905 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 13:30:37 +00:00
Justin Ruggles
0bff58a59a make exponent decoding consistent (prepare for merging coupling and lfe code with normal channel code). 
Originally committed as revision 9904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 13:26:46 +00:00
Justin Ruggles
eaf84d970f cosmetics: use braces when it makes the code easier to read. 
Originally committed as revision 9893 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 12:04:41 +00:00
Justin Ruggles
fc59010bbf change AC3DecodeContext variable to local variable 
Originally committed as revision 9892 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 11:55:10 +00:00
Justin Ruggles
6d96d626c6 use array instead of bitmask 
Originally committed as revision 9891 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 11:39:47 +00:00
Justin Ruggles
3357ff338b use table for converting dynamic range codes to scale factors 
Originally committed as revision 9889 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 03:27:05 +00:00
Justin Ruggles
5aefe3ebef use floating-point mantissa dequantization tables 
Originally committed as revision 9888 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 03:21:17 +00:00
Justin Ruggles
04ac5cada1 cosmetics: indentation 
Originally committed as revision 9887 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 01:14:14 +00:00
Justin Ruggles
60f07fadd3 dither zero-bit mantissas by default. remove dithering only if it's explicitly turned off. 
Originally committed as revision 9886 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 01:13:08 +00:00
Justin Ruggles
d63f6fea50 simplify coefficient decoding 
Originally committed as revision 9884 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 00:12:23 +00:00
Justin Ruggles
285bf28c67 merge decoding of coupling channel coefficients and regular channel coefficients 
Originally committed as revision 9883 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-04 00:04:17 +00:00
Justin Ruggles
d7dc7ad05c split out coupling coefficient reconstruction into a separate function 
Originally committed as revision 9882 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-03 23:53:53 +00:00
Justin Ruggles
dfd57c366f align array used in mdct. fixes segfault. 
Originally committed as revision 9848 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-08-01 01:13:58 +00:00
Justin Ruggles
8b60bbbf5b simplify stereo rematrixing 
Originally committed as revision 9824 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-29 00:58:32 +00:00
Justin Ruggles
b6acc57f88 change 2 fields from context to local variables 
Originally committed as revision 9823 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-29 00:35:30 +00:00
Justin Ruggles
8fbb368d2c BLOCK_SIZE is not used properly, just use numbers instead to avoid confusion 
Originally committed as revision 9822 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-28 20:50:25 +00:00
Justin Ruggles
7bfd22f25a remove broken downmixing. will add new implementation later. 
Originally committed as revision 9821 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-28 19:33:19 +00:00
Justin Ruggles
4611b64ec1 simplify snr offset and bit allocation 
Originally committed as revision 9784 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-24 02:08:27 +00:00
Justin Ruggles
e9a3824880 only use sized data types when necessary 
Originally committed as revision 9783 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-24 01:43:47 +00:00
Justin Ruggles
8f58a4c943 set bit allocation parameters directly instead of copying 
Originally committed as revision 9782 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-24 01:35:25 +00:00
Justin Ruggles
e2cd6686fa use enum value instead of numerical value for acmod 
Originally committed as revision 9781 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-23 22:47:49 +00:00
Justin Ruggles
bc8edb7e53 use consistent data type for exponents. needs to be int8_t to pass to bit allocation. 
Originally committed as revision 9780 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-23 22:23:37 +00:00
Justin Ruggles
878c40a137 change some bit masks to arrays 
Originally committed as revision 9779 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-23 22:16:15 +00:00
Justin Ruggles
bec37145da cosmetics: indentation 
Originally committed as revision 9774 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-21 17:03:30 +00:00
Justin Ruggles
9fc1ab722e Use shared AC-3 header parsing. Move some initializations to block parsing function. 
Originally committed as revision 9773 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-21 16:28:12 +00:00
Justin Ruggles
9ef6039043 don't need to synchronize in the decoder. the parser does that already. 
Originally committed as revision 9772 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-21 13:56:04 +00:00
Justin Ruggles
de34875c75 get rid of an ugly macro 
Originally committed as revision 9771 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-21 11:54:19 +00:00
Justin Ruggles
614e9b2424 don't need to define ALT_BITSTREAM_READER 
Originally committed as revision 9752 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 02:21:14 +00:00
Justin Ruggles
362664215d update license header. add copyright for myself. correct and complete the statement about liba52. 
Originally committed as revision 9751 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 02:16:20 +00:00
Justin Ruggles
3bb004fcda revise comment for exponent decoding function 
Originally committed as revision 9750 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 02:09:58 +00:00
Justin Ruggles
4415076f55 new implementation of exponent decoding 
Originally committed as revision 9749 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 02:04:05 +00:00
Justin Ruggles
d699d38393 cosmetics: indentation 
Originally committed as revision 9748 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 00:51:19 +00:00
Justin Ruggles
0ce668015f remove portions of bit allocation which are no longer needed since they are shared with the encoder 
Originally committed as revision 9747 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-19 00:50:31 +00:00
Justin Ruggles
0de73a46ff fix the 256-point MDCT 
Originally committed as revision 9685 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 14:47:39 +00:00
Justin Ruggles
623b79435d use shared ac3 bit allocation function 
Originally committed as revision 9684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 13:53:42 +00:00
Justin Ruggles
fa67992dea no need for the decoder to have the license as a prefix 
Originally committed as revision 9682 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 01:38:13 +00:00
Justin Ruggles
76d357fd23 remove a debugging function and variable, and remove the commented-out code which uses them. 
Originally committed as revision 9681 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 01:35:46 +00:00
Justin Ruggles
a39532b0d9 ABS -> FFABS 
Originally committed as revision 9680 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 01:32:04 +00:00
Justin Ruggles
cc2a8443eb move some common values to ac3.h and utilize them 
Originally committed as revision 9679 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-15 01:31:09 +00:00
Justin Ruggles
cb503702ee use random number generator from libavutil 
Originally committed as revision 9678 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 23:57:05 +00:00
Justin Ruggles
9d10960194 10l to me. I accidentally removed a word. 
Originally committed as revision 9677 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 22:17:23 +00:00
Justin Ruggles
0ec2cc35f7 revise license header for simplicity and consistency 
Originally committed as revision 9676 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 18:53:56 +00:00
Justin Ruggles
283614b5fc make ac3dec.c GPL until violations are fixed 
Originally committed as revision 9674 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:07:56 +00:00
Justin Ruggles
967d397a6c AC-3 decoder, soc revision 402, Jul 14 13:45:14 2007 UTC by jbr 
merge ac3_decoder.h into ac3_decoder.c

Originally committed as revision 9673 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:06:14 +00:00
Loren Merritt
afb46fc092 AC-3 decoder, soc revision 148, Sep 28 18:38:27 2006 UTC by banan 
Enable sse imdct, patch by Loren Merrit.

Originally committed as revision 9672 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:05:39 +00:00
Justin Ruggles
de17eee70f AC-3 decoder, soc revision 109, Sep 22 22:42:54 2006 UTC by banan 
Cosmetics.

Originally committed as revision 9671 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:05:13 +00:00
Justin Ruggles
1ea76064b4 AC-3 decoder, soc revision 72, Sep 7 04:20:00 2006 UTC by cloud9 
fix short block imdct.

Originally committed as revision 9670 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:04:40 +00:00
Justin Ruggles
c7cfc48f37 AC-3 decoder, soc revision 71, Sep 4 09:47:12 2006 UTC by cloud9 
Redundant code cleanup.
Optimized dither generation.
Minor optimization in bit allocation.
Comments.

Originally committed as revision 9669 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:04:17 +00:00
Justin Ruggles
860fe8c908 AC-3 decoder, soc revision 70, Aug 31 18:04:23 2006 UTC by banan 
Cosmetics, white space removal.

Originally committed as revision 9668 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-14 16:03:47 +00:00