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Commit Graph

106 Commits

Author SHA1 Message Date
Justin Ruggles
b40211ff67 downmix before the IMDCT if no block switching is used
Originally committed as revision 11228 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-16 04:25:50 +00:00
Andreas Öman
6708eefe55 Make AC3 decoder honor avctx->request_channels
Originally committed as revision 11220 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-15 07:00:19 +00:00
Justin Ruggles
e2270b4e1e cosmetics: rename ac3 decoder variables
Originally committed as revision 11197 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-09 03:28:10 +00:00
Justin Ruggles
e59cc20593 cosmetics: rename common ac3 variables
Originally committed as revision 11196 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-09 03:27:14 +00:00
Justin Ruggles
5ce2134258 cosmetics: rename ac3 bit allocation variables
Originally committed as revision 11194 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-09 03:23:04 +00:00
Justin Ruggles
66ecf18e38 cosmetics: rename ac3 tables
Originally committed as revision 11193 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-09 03:21:33 +00:00
Diego Biurrun
56cc85a068 Misc spelling fixes, prefer American over British English.
Originally committed as revision 11126 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-02 15:43:08 +00:00
Justin Ruggles
a135bea507 skip incomplete frames
Originally committed as revision 10497 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-15 02:44:28 +00:00
Justin Ruggles
3df880934e better AC3 header error reporting
Originally committed as revision 10496 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-15 02:41:24 +00:00
Justin Ruggles
d5b7144e1f fix random dithering of zero-bit mantissas
Originally committed as revision 10495 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-15 00:43:40 +00:00
Justin Ruggles
bfcf690c68 cosmetics: rename variables. tbl->tab for consistency with other AC3 tables
Originally committed as revision 10494 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-15 00:19:21 +00:00
Justin Ruggles
396a6ee50e fix decoding of DolbyNet AC3
Originally committed as revision 10493 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-15 00:00:57 +00:00
Justin Ruggles
222ae64c3d cosmetics: vertical alignment
Originally committed as revision 10002 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-09 00:39:35 +00:00
Justin Ruggles
5066f51502 comments modification: add, clean up, Doxygenize, and reword
Originally committed as revision 10001 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-09 00:36:49 +00:00
Justin Ruggles
f5cefb21d5 cosmetics: blank lines, remove some comments
Originally committed as revision 9955 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-05 21:48:46 +00:00
Justin Ruggles
82758fd690 add pointer to the parent context for use with av_log()
Originally committed as revision 9954 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-05 21:34:33 +00:00
Justin Ruggles
77416325cb use array for dynamic range scaling factors
Originally committed as revision 9953 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-05 21:10:09 +00:00
Justin Ruggles
01f354531d add dialogue normalization
Originally committed as revision 9948 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-05 19:36:35 +00:00
Justin Ruggles
3bbb0bf82c add support for downmixing to stereo or mono
Originally committed as revision 9916 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-04 22:32:17 +00:00
Justin Ruggles
4e09232070 use dsputil for float to signed 16-bit sample conversion
Originally committed as revision 9914 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-04 20:59:22 +00:00
Justin Ruggles
775369e028 cosmetics: indentation
Originally committed as revision 9911 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-04 20:32:57 +00:00
Justin Ruggles
7b4076a777 consolidate decoding of lfe and coupling channels with decoding of full-bandwidth channels.
Originally committed as revision 9910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-04 19:19:48 +00:00
Justin Ruggles
5e61de0cc1 there are only 4 rematrixing bands
Originally committed as revision 9908 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-04 15:01:21 +00:00
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