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path: root/libavcodec/ac3dec_data.h
AgeCommit message (Collapse)Author
2011-05-24ac3enc: add channel coupling supportJustin Ruggles
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.
2011-03-19Replace FFmpeg with Libav in licence headersMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-09Add stereo rematrixing support to the AC-3 encoders.Justin Ruggles
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
2010-03-31Add spectral extension to the E-AC-3 decoder.Carl Eugen Hoyos
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
2009-07-23refactoring: properly separate AC-3 and E-AC-3 codeDiego Biurrun
Originally committed as revision 19501 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-23cosmetics: Reorder some tables/lines to make future diffs smaller.Diego Biurrun
Originally committed as revision 19498 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-23#include just the required stdint.h instead of libavutil/common.h.Diego Biurrun
Originally committed as revision 19497 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-21eac3dec: make GAQ dequantization 24-bitJustin Ruggles
Originally committed as revision 18888 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-21eac3dec: revert commit r18860. keep the AHT IDCT 24-bit. will make AHT GAQJustin Ruggles
dequantization 24-bit in a separate commit. Originally committed as revision 18887 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-17eac3dec: use 16-bit pre-mantissas instead of 24-bit in AHT decoding. it isJustin Ruggles
simpler and also fixes a bug in GAQ dequantization. Originally committed as revision 18860 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-14revert r15812 (E-AC-3 Spectral Extension) pending further reviewJustin Ruggles
Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13add support for spectral extensionJustin Ruggles
Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-02Add (additional) const to many global tables.Reimar Döffinger
Originally committed as revision 15515 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31Globally rename the header inclusion guard names.Stefano Sabatini
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
2008-08-28cosmetics: rename a tableJustin Ruggles
Originally committed as revision 15003 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-25right shift the values by 8 in GAQ remap "B" table. data now fits in int8_t.Justin Ruggles
Originally committed as revision 14958 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-04Hardcode the table for ungrouping 3 values in 5 bits. It will be reused byJustin Ruggles
the E-AC-3 decoder. Originally committed as revision 14527 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03cosmetics: make all references to AC-3 capitalized and hyphenatedJustin Ruggles
Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-09move rematrixing band table to ac3dec_data.cJustin Ruggles
Originally committed as revision 13716 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-09add ac3dec_data.[c,h]Justin Ruggles
Originally committed as revision 13715 to svn://svn.ffmpeg.org/ffmpeg/trunk
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