Justin Ruggles
dc7e07ac1f
Add stereo rematrixing support to the AC-3 encoders.
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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
2011-01-08 23:21:17 +00:00
Carl Eugen Hoyos
ca6e7708b4
Add spectral extension to the E-AC-3 decoder.
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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
2010-03-30 22:09:14 +00:00
Diego Biurrun
d15153244f
refactoring: properly separate AC-3 and E-AC-3 code
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Originally committed as revision 19501 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-23 02:33:25 +00:00
Diego Biurrun
7f4e15e2f4
cosmetics: Reorder some tables/lines to make future diffs smaller.
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Originally committed as revision 19498 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-22 23:33:58 +00:00
Diego Biurrun
84ef7e7fc3
#include just the required stdint.h instead of libavutil/common.h.
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Originally committed as revision 19497 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-22 22:57:17 +00:00
Justin Ruggles
9907c7804a
eac3dec: make GAQ dequantization 24-bit
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Originally committed as revision 18888 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-21 00:15:03 +00:00
Justin Ruggles
ae04de316f
eac3dec: revert commit r18860. keep the AHT IDCT 24-bit. will make AHT GAQ
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dequantization 24-bit in a separate commit.
Originally committed as revision 18887 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-21 00:09:23 +00:00
Justin Ruggles
9a7a71ed4c
eac3dec: use 16-bit pre-mantissas instead of 24-bit in AHT decoding. it is
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simpler and also fixes a bug in GAQ dequantization.
Originally committed as revision 18860 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-17 06:53:24 +00:00
Justin Ruggles
e202cc2580
revert r15812 (E-AC-3 Spectral Extension) pending further review
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Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 22:38:38 +00:00
Justin Ruggles
0cc51734b2
add support for spectral extension
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Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:13 +00:00
Reimar Döffinger
9b5ede5b64
Add (additional) const to many global tables.
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Originally committed as revision 15515 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-02 15:52:04 +00:00
Stefano Sabatini
987903826b
Globally rename the header inclusion guard names.
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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
2008-08-31 07:39:47 +00:00
Justin Ruggles
53e6fbb4c5
cosmetics: rename a table
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Originally committed as revision 15003 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 23:44:34 +00:00
Justin Ruggles
ffc2b3412c
right shift the values by 8 in GAQ remap "B" table. data now fits in int8_t.
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Originally committed as revision 14958 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-25 00:15:29 +00:00
Justin Ruggles
602116df9b
Hardcode the table for ungrouping 3 values in 5 bits. It will be reused by
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the E-AC-3 decoder.
Originally committed as revision 14527 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 21:42:43 +00:00
Justin Ruggles
14b7062829
cosmetics: make all references to AC-3 capitalized and hyphenated
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Originally committed as revision 14523 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 16:42:32 +00:00
Justin Ruggles
227322b837
move rematrixing band table to ac3dec_data.c
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Originally committed as revision 13716 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-08 21:09:02 +00:00
Justin Ruggles
7ed9a2ea50
add ac3dec_data.[c,h]
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Originally committed as revision 13715 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-08 21:08:57 +00:00
