Justin Ruggles
7f3a7b5c40
ac3enc: add channel coupling support
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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.
14 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
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
14 years ago
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
15 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
Justin Ruggles
0cc51734b2
add support for spectral extension
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Originally committed as revision 15812 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
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
16 years ago
Justin Ruggles
53e6fbb4c5
cosmetics: rename a table
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Originally committed as revision 15003 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
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
17 years ago
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
17 years ago
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
17 years ago
Justin Ruggles
7ed9a2ea50
add ac3dec_data.[c,h]
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Originally committed as revision 13715 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Måns Rullgård
3540b950ec
add missing #include "common.h" to libavutil headers
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Originally committed as revision 12502 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Zuxy Meng
85074d3c93
Reapply r12489: Add pure, const and malloc attributes to proper functions
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in libavutil.
Fix a compilation failure in r12489.
Originally committed as revision 12498 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Benoit Fouet
2119bb8f51
revert r12489.
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Originally committed as revision 12490 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Zuxy Meng
6544f48f03
Pure, const and malloc attributes to libavutil.
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Patch by Zuxy Meng: zuxy meng gmail com
Original thread:
[FFmpeg-devel] [PATCH] Pure, const and malloc attributes to libavutil
Date: 03/18/2008 6:09 AM
Originally committed as revision 12489 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Peter Ross
fe0c188b4a
This header just needs stdint.h, not inttypes.h, which is a superset of
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stdint.h. This has the sideeffect of fixing the build on Interix.
patch by Pete Ross, pross xvid org
Originally committed as revision 12225 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
f0a838e525
Add missing #includes to fix 'make checkheaders'.
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Originally committed as revision 11087 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Reimar Döffinger
46fb896b9d
Document ff_des_encdec
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Originally committed as revision 10822 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
1b1ab19816
cosmetics: Add #endif comment.
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Originally committed as revision 10811 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Reimar Döffinger
2e9ad69aaf
Add support for DES en- and decryption.
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Originally committed as revision 10810 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
5b21bdabe4
Add FFMPEG_ prefix to all multiple inclusion guards.
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Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Luca Abeni
171dce486c
Support for AAC streaming over RTP. Fragmentation is not implemented yet
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Originally committed as revision 10491 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Luca Abeni
7fa9d0dd8f
Remove copyright from a function prototype
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Originally committed as revision 10214 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Luca Abeni
98561024ac
Move the RTP packetization code for MPEG12 video in its own file (rtp_mpv.c)
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Originally committed as revision 10201 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
f5a90186d7
Add missing license headers.
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Originally committed as revision 8149 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Fabrice Bellard
e3e105b38a
added include for ffserver dynamically loaded modules
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Originally committed as revision 809 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago