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* ac3enc: add channel coupling supportJustin Ruggles2011-05-24
| | | | | | | | | Channel coupling is an optional AC-3 feature that increases quality by combining high frequency information from multiple channels into a single channel. The per-channel high frequency information is sent with less accuracy in both the frequency and time domains. This allows more bits to be used for lower frequencies while preserving enough information to reconstruct the high frequencies.
* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Add stereo rematrixing support to the AC-3 encoders.Justin Ruggles2011-01-08
| | | | | | | | This improves the audio quality significantly for stereo source with both the fixed-point and floating-point AC-3 encoders. Update acodec-ac3_fixed and seek-ac3_rm test references. Originally committed as revision 26271 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add spectral extension to the E-AC-3 decoder.Carl Eugen Hoyos2010-03-30
| | | | | | | Original patch by Justin, updated and resubmitted by Christophe Gisquet, christophe D gisquet A gmail Originally committed as revision 22734 to svn://svn.ffmpeg.org/ffmpeg/trunk
* refactoring: properly separate AC-3 and E-AC-3 codeDiego Biurrun2009-07-23
| | | | Originally committed as revision 19501 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetics: Reorder some tables/lines to make future diffs smaller.Diego Biurrun2009-07-22
| | | | Originally committed as revision 19498 to svn://svn.ffmpeg.org/ffmpeg/trunk
* #include just the required stdint.h instead of libavutil/common.h.Diego Biurrun2009-07-22
| | | | Originally committed as revision 19497 to svn://svn.ffmpeg.org/ffmpeg/trunk
* eac3dec: make GAQ dequantization 24-bitJustin Ruggles2009-05-21
| | | | Originally committed as revision 18888 to svn://svn.ffmpeg.org/ffmpeg/trunk
* eac3dec: revert commit r18860. keep the AHT IDCT 24-bit. will make AHT GAQJustin Ruggles2009-05-21
| | | | | | dequantization 24-bit in a separate commit. Originally committed as revision 18887 to svn://svn.ffmpeg.org/ffmpeg/trunk
* eac3dec: use 16-bit pre-mantissas instead of 24-bit in AHT decoding. it isJustin Ruggles2009-05-17
| | | | | | simpler and also fixes a bug in GAQ dequantization. Originally committed as revision 18860 to svn://svn.ffmpeg.org/ffmpeg/trunk
* revert r15812 (E-AC-3 Spectral Extension) pending further reviewJustin Ruggles2008-11-13
| | | | Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add support for spectral extensionJustin Ruggles2008-11-13
| | | | Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add (additional) const to many global tables.Reimar Döffinger2008-10-02
| | | | Originally committed as revision 15515 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Globally rename the header inclusion guard names.Stefano Sabatini2008-08-31
| | | | | | | | | Consistently apply this rule: the guard name is obtained from the filename by stripping the leading "lib", converting '/' and '.' to '_' and uppercasing the resulting name. Guard names in the root directory have to be prefixed by "FFMPEG_". Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetics: rename a tableJustin Ruggles2008-08-27
| | | | Originally committed as revision 15003 to svn://svn.ffmpeg.org/ffmpeg/trunk
* right shift the values by 8 in GAQ remap "B" table. data now fits in int8_t.Justin Ruggles2008-08-25
| | | | Originally committed as revision 14958 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Hardcode the table for ungrouping 3 values in 5 bits. It will be reused byJustin Ruggles2008-08-03
| | | | | | the E-AC-3 decoder. Originally committed as revision 14527 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetics: make all references to AC-3 capitalized and hyphenatedJustin Ruggles2008-08-03
| | | | Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk
* move rematrixing band table to ac3dec_data.cJustin Ruggles2008-06-08
| | | | Originally committed as revision 13716 to svn://svn.ffmpeg.org/ffmpeg/trunk
* add ac3dec_data.[c,h]Justin Ruggles2008-06-08
Originally committed as revision 13715 to svn://svn.ffmpeg.org/ffmpeg/trunk
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