c9f6eab184
Detect byte-swapped AC-3 (aka DNET) and support decoding it directly.
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This allows the AC-3 decoder to be used directly with RealMedia
decoders that unlike the libavformat one do not byte-swap automatically.
Since the new code is only used in case we would fail directly otherwise
there should be no risk for regressions.
The "buf" pointer needs to be overwritten since otherwise the CRC check fails.
2011-03-19 12:07:14 +01:00
fe2ff6d247
Separate format conversion DSP functions from DSPContext.
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This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit c73d99e672
2011-02-04 03:08:09 +01:00
c73d99e672
Separate format conversion DSP functions from DSPContext.
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This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-02-02 02:44:53 +00:00
a8ae4e0e7b
Remove unneeded add bias from 3 functions.
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DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 80ba1ddb58
2011-02-02 03:40:48 +01:00
80ba1ddb58
Remove unneeded add bias from 3 functions.
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DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-31 20:28:42 +00:00
79ce107847
cosmetics: indentation and spacing
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(cherry picked from commit b5ec638343
2011-01-28 03:15:35 +01:00
733dbe7d18
Remove the add bias hack for the C version of DSPContext.float_to_int16_*().
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(cherry picked from commit 9d06d7bce3
2011-01-28 03:15:35 +01:00
e7e2df27f8
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
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None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d36beb3f69
2011-01-28 03:15:34 +01:00
dff80041e3
Add ff_ prefix to ac3_common_init().
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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 4c57cde942
2011-01-28 03:15:33 +01:00
b5ec638343
cosmetics: indentation and spacing
2011-01-28 00:21:46 +00:00
9d06d7bce3
Remove the add bias hack for the C version of DSPContext.float_to_int16_*().
2011-01-28 00:07:35 +00:00
d36beb3f69
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
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None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-26 16:08:45 +00:00
4c57cde942
Add ff_ prefix to ac3_common_init().
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-26 15:35:27 +00:00
5d6e4c160a
Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum
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SampleFormat with AVSampleFormat.
Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-12 11:04:40 +00:00
eb0a4d3222
Fix compilation of AC3 decoder if E-AC3 decoder was disabled.
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Originally committed as revision 23131 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-13 20:41:36 +00:00
cc8538ff93
ac3dec: return smaller of buf_size and frame_size instead of always returning
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frame_size.
Originally committed as revision 22950 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-22 21:43:36 +00:00
2874c81cc8
Replace all remaining occurrences of AVERROR_NOMEM with
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AVERROR(ENOMEM).
AVERROR_NOMEM is deprecated and will be dropped at the next libavutil
major bump.
Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-03 14:15:00 +00:00
72415b2adb
Define AVMediaType enum, and use it instead of enum CodecType, which
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is deprecated and will be dropped at the next major bump.
Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-30 23:30:55 +00:00
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
2c2cdc0bfb
Simplify error handling by processing header errors separate from CRC and
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buffer size vs. frame size errors.
Originally committed as revision 21519 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-28 23:19:33 +00:00
008f872f61
Only check frame size if the header is valid.
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Originally committed as revision 21439 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-24 23:55:33 +00:00
1460c79097
Use MULH instead of 64x64 multiplication, around 5% overall speedup on Intel Atom.
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Patch by myself and Yuriy Kaminskiy [yumkam mail ru]
Originally committed as revision 21175 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-12 23:02:07 +00:00
7934cbb3be
ac3dec: apply dynamic range compression to correct channels in dual-mono mode.
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Originally committed as revision 20533 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-14 00:25:48 +00:00
187bc061e4
ac3dec: revert r20089. The change was just wrong. 10l for me.
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Originally committed as revision 20473 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-08 03:06:05 +00:00
535497f193
Change an error to a warning to support broken AC-3 files known to exist.
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Fixes Issue 1426.
Originally committed as revision 20110 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-01 00:06:54 +00:00
3fdccca091
10l: wrong operation in stereo rematrixing
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Originally committed as revision 20106 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-30 21:51:02 +00:00
2ed4439658
Simplify stereo rematrixing by only using one temporary variable. It is also
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about 1.8% faster on my system.
Originally committed as revision 20090 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-30 01:25:04 +00:00
16c91d2b23
remove unneeded assignment in inner loop. rematrixing bands are contiguous.
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Originally committed as revision 20089 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-30 01:09:57 +00:00
8b11b44ea7
Rearrange loop structure for approx. 35-50% faster calc_transform_coeffs_cpl()
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depending on content.
Originally committed as revision 20055 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-27 07:16:51 +00:00
3b6c5ad2f6
Move variable declaration to inside of loop.
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Originally committed as revision 20053 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-27 06:38:57 +00:00
025873738f
Cosmetics: Rename some variables.
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Originally committed as revision 20052 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-27 06:38:13 +00:00
b5f4639b13
Simplify coupling band loop.
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Originally committed as revision 20051 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-27 06:33:23 +00:00
a521aadfe8
cosmetics: reindent after last commit
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Originally committed as revision 19589 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 02:31:13 +00:00
25dcd1823c
ac3dec: simplify zero-bit mantissa dithering by calculating it
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conditionally during mantissa decoding, then only removing it from the
coupling range for coupled channels which do not use dithering.
Originally committed as revision 19588 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 02:30:34 +00:00
b972c06a8f
cosmetics: indentation and line wrap
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Originally committed as revision 19587 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 01:58:28 +00:00
c36ea0600c
cosmetics after last commit
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Originally committed as revision 19586 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 01:14:28 +00:00
3f93716809
Modify decode_band_structure() so that the actual band structure is only
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used within the function. This removes the need to have the coupling band
structure stored in the AC3DecodeContext.
Originally committed as revision 19585 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 01:13:42 +00:00
603139022d
Use coupling band sizes instead of coupling band structure when
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calculating coupling transform coefficients.
Originally committed as revision 19584 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-05 01:00:41 +00:00
eb98cdfa8d
cosmetics: add more detailed information to the documentation for
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decode_band_structure().
Originally committed as revision 19577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-03 22:05:31 +00:00
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
89547cfb36
Make sure that eac3_decoder only gets enabled when CONFIG_EAC3_DECODER is set.
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Originally committed as revision 19500 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-23 00:15:23 +00:00
ce863d7f36
Rename ff_log_missing_feature() to av_log_missing_feature().
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Originally committed as revision 19294 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-29 19:07:04 +00:00
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
1754fe4d30
The AC-3 decoder is now LGPL. Exchange the license header and change references
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in the build system and documentation that mark it as GPL.
Originally committed as revision 18876 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-19 22:58:09 +00:00
d869a460db
LGPL version of ac3_decode_transform_coeffs_ch, ~12.4% faster.
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Originally committed as revision 18875 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-19 21:29:21 +00:00
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
1ac7d1ac50
ac3dec: fix coupling range check. the start subband must be less than
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the end subband.
Originally committed as revision 18857 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-16 17:02:44 +00:00
7d485f165f
Support for getting (i)MDCT output multiplied by a constant scaling factor.
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Scaling (i)MDCT output has no runtime overhead and can be used to improve
performance of audio codecs. All the changes are only needed in
'ff_mdct_init' function and slow down initialization a bit.
Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-16 14:17:08 +00:00
778bc09bbe
cosmetics: line wrap and vertical alignment
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Originally committed as revision 18752 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-06 01:48:14 +00:00
396b73c7f7
ac3dec: Remove unneeded context variable, num_cpl_subbands. It is also
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not needed for spectral extension or enhanced coupling since it is
redundant information, so I am removing it from decode_band_structure()
as well.
Originally committed as revision 18751 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-06 01:47:34 +00:00
52dc3fc83d
cosmetics: indentation after last commit
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Originally committed as revision 18750 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-05 23:39:10 +00:00
13ec942869
ac3dec: move channel remapping to outside of block loop
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Originally committed as revision 18749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-05-05 23:38:12 +00:00
bfeca7beb6
Add channel layout support to the AC-3 decoder and AC-3 parser.
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Originally committed as revision 18622 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-19 15:05:32 +00:00
95f3019a51
ac3dec: reorder output channels to SMPTE channel order
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Originally committed as revision 18542 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-17 08:43:04 +00:00
7a00bbad21
Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an
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AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows
passing of packet-specific flags from demuxer to decoder, such as the keyframe
flag, which appears necessary to playback corePNG P-frames.
Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread
"Google Summer of Code participation" on the mailinglist.
Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-07 15:59:50 +00:00
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
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Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-19 15:46:40 +00:00
11d6f38cc9
Factorise enum of AC3 error types to be usable by AAC in the ADTS patch that
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will follow
Patch by Alex Converse ( alex converse gmail com )
Originally committed as revision 16479 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-07 18:10:10 +00:00
dbbec0c2f2
Make av_log_missing_feature an internal function, and change its name
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to ff_log_missing_feature.
Originally committed as revision 16037 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-08 21:21:38 +00:00
20e047262f
cosmetics: alignment after last commit
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Originally committed as revision 16035 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-08 03:15:10 +00:00
72a6244b5d
ac3: detect dba errors and prevent writing past end of array
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Originally committed as revision 16034 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-08 03:13:20 +00:00
2ceccf045c
ac3dec: simplify exponent bounds checking
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Originally committed as revision 16022 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 16:33:16 +00:00
96f229d6c0
ac3dec: unroll inner loop in exponent decoding. 46% faster decode_exponents().
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Originally committed as revision 16018 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 15:46:23 +00:00
806703243e
cosmetics: vertical alignment
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Originally committed as revision 16017 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 15:38:21 +00:00
1cdd567f31
cosmetics: reindent after last commit
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Originally committed as revision 16016 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 15:37:04 +00:00
ce7d842fa6
ac3dec: detect out-of-range exponents
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Originally committed as revision 16015 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-06 15:36:23 +00:00
f23dc1e1f9
silence gcc warning: ‘n_bands’ may be used uninitialized
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Originally committed as revision 15999 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-04 02:56:25 +00:00
75b53b2123
ac3dec: use uint8_t for band sizes
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Originally committed as revision 15998 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-04 02:51:39 +00:00
af2272b209
ac3dec: skip decoding and use error concealment for remaining blocks in
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the frame after an error occurs.
Originally committed as revision 15987 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-03 03:34:31 +00:00
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
3f3ca7ac07
cosmetics: vertical alignment
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Originally committed as revision 15815 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:28 +00:00
c763f86728
silence a gcc warning about using an uninitialized variable
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Originally committed as revision 15814 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:24 +00:00
66561189a1
cosmetics: indentation
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Originally committed as revision 15813 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:18 +00:00
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
0c5d750df9
add a generic function to decode banding structure for coupling, spectral
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extension, or enhanced coupling
Originally committed as revision 15811 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:07 +00:00
6c6f927289
add a line break in error message text
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Originally committed as revision 15810 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:18:01 +00:00
6ee6d068f7
simplify decoding of coupling frequency range
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Originally committed as revision 15809 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:17:56 +00:00
24834c1928
cosmetics: rename two variables
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Originally committed as revision 15808 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-13 03:17:50 +00:00
047599a4ba
Rename error_resilience to error_recognition.
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Originally committed as revision 15270 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-08 18:18:49 +00:00
2988c93d94
create a separate codec_id for E-AC-3
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Originally committed as revision 15143 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-01 14:33:54 +00:00
1f6a594de4
turn on E-AC-3 decoding support and update the Changelog
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Originally committed as revision 15103 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 03:08:18 +00:00
f2e4eb62dc
cosmetics: indentation
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Originally committed as revision 15089 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 02:32:08 +00:00
8dfc56ec32
commit more OKed parts of the E-AC-3 decoder
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Originally committed as revision 15087 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 02:30:09 +00:00
225c30429d
commit more OKed parts of the E-AC-3 decoder
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Originally committed as revision 15068 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 23:19:23 +00:00
ea364c74a0
cosmetics: update comment about dithering
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Originally committed as revision 15051 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 17:51:03 +00:00
e522bd49c8
cosmetics: change another "get" to "decode"
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Originally committed as revision 15014 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 00:09:47 +00:00
164e169fef
cosmetics: change "get" to "decode"
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Originally committed as revision 15013 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 00:06:43 +00:00
86662b1c89
cosmetics: indentation
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Originally committed as revision 15012 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-28 23:16:21 +00:00
260e09305b
remove unneeded variable, dither_all
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Originally committed as revision 15011 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-28 23:04:15 +00:00
aec0407faf
cosmetics: indent after last commit
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Originally committed as revision 15001 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 23:23:54 +00:00
6b4bfed965
do not read exponent strategies from each block for E-AC-3 since they are in the header
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Originally committed as revision 15000 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 23:11:05 +00:00
0ffea2439b
copy default coupling band structure from table to decoding context (used for E-AC-3)
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Originally committed as revision 14990 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:40:46 +00:00
e43b29ab26
add more OKed parts of the E-AC-3 decoder: structural changes to support AHT mode mantissa decoding
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Originally committed as revision 14989 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:36:20 +00:00
6a68105e2b
cosmetics: rename some functions from *get_* to *decode_*
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Originally committed as revision 14988 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-27 01:24:43 +00:00
63d72fb167
fix decoding of coupling leak info for normal AC-3
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Originally committed as revision 14913 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 03:30:08 +00:00
0569993ea4
cosmetics: indentation
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Originally committed as revision 14911 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:55:52 +00:00
6fafb0202a
add some approved parts of the E-AC-3 decoder
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Originally committed as revision 14910 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 01:51:42 +00:00
ab2a942ad8
cosmetics: indentation
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Originally committed as revision 14863 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 01:02:32 +00:00
bf09b550e6
commit the OKed parts of the E-AC-3 decoder
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Originally committed as revision 14860 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:32:17 +00:00
e630027686
get data size based on the actual data array instead of coding-in the calculation
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Originally committed as revision 14859 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:15:27 +00:00
8e33132bab
rename AC3_MAX_FRAME_SIZE to AC3_FRAME_BUFFER_SIZE and increase the size
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Originally committed as revision 14858 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-20 00:08:59 +00:00
46dd2738ae
remove some unneeded header includes
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Originally committed as revision 14819 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-17 19:56:28 +00:00
ec0350c983
use LFG instead of Mersenne Twister for AC-3 PRNG
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Originally committed as revision 14815 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-17 17:41:48 +00:00
38c1a5c4d9
update my email address to one which does not depend on my service provider
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Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-16 22:42:59 +00:00
911e21a306
simd int->float
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20% faster ac3 if downmixing, 15% if not
Originally committed as revision 14743 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:35:40 +00:00
ac2e556456
simd downmix
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13% faster ac3 if downmixing
Originally committed as revision 14742 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:33:48 +00:00
45d9d61889
don't mark the delayed samples for upmixing if they haven't been downmixed
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Originally committed as revision 14741 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:53 +00:00
3b6516f7e7
oops, non-normalized downmix to mono contaminated add_bias for non-simd float-to-int.
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Originally committed as revision 14740 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 23:30:28 +00:00
557ac0c448
optimize ac3_downmix.
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1.3x faster 5.1->stereo, 1.9x faster 5.1->mono.
Originally committed as revision 14719 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 23:45:46 +00:00
72745cff20
use float_to_int16_interleave in ac3
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Originally committed as revision 14706 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 03:01:17 +00:00
916d5d6c32
use imdct_half in ac3
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Originally committed as revision 14705 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 01:30:24 +00:00
d46ac5bfde
mdct wrapper function to match fft
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Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 00:38:30 +00:00
0a570e826d
remove mdct tmp buffer
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Originally committed as revision 14702 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-12 00:36:36 +00:00
5e3e40756e
cosmetics: use a better function name than uncouple_channels()
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Originally committed as revision 14614 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:49:01 +00:00
022845ed05
cosmetics: change function name and comments to refer to block decoding
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instead of block parsing
Originally committed as revision 14613 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 01:31:40 +00:00
ba7f712c21
remove unneeded local variable
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Originally committed as revision 14547 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 00:32:27 +00:00
55aff0d901
Read bitstream parameters for E-AC-3 streams before returning an error.
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Originally committed as revision 14528 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 22:29:06 +00:00
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
7417120b6f
use the same table for ungrouping exponents and bap=2 mantissas
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Originally committed as revision 14525 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-03 19:24:04 +00:00
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
fd76c37fd9
Modify all codecs to report their supported input and output sample format(s).
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Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-31 10:47:31 +00:00
4760aec6a0
read 'coupling in use' parameter from bitstream into decoder context first,
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then copy to the local variable.
Originally committed as revision 14311 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-19 22:01:46 +00:00
7645da9194
cosmetic: use hex value instead of decimal to show relation to 0x7FFFFF
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Originally committed as revision 14290 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-19 02:54:54 +00:00
fe4bf37455
Make AVCodec long_names definition conditional depending on CONFIG_SMALL.
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Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-12 21:50:13 +00:00
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
4397d95ce0
split up header parsing function
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Originally committed as revision 13705 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:51 +00:00
da04be10a2
store exp_strategy for all blocks in decode context
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Originally committed as revision 13704 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:47 +00:00
54624396fc
store cpl_in_use for all blocks in decode context
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Originally committed as revision 13703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:43 +00:00
58ce349f0a
move the decode context and some macro constants to a new file, ac3dec.h
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Originally committed as revision 13697 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:16 +00:00
30f71adc46
move mix level tables from parser to decoder. have parser read bitstream value instead of using an index to a table in the decoder.
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Originally committed as revision 13696 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:09 +00:00
caf0fbc889
add more gain levels and adjust mix level tables accordingly.
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Originally committed as revision 13695 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:30:03 +00:00
687671f03b
pass bap table to ff_ac3_bit_alloc_calc_bap()
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Originally committed as revision 13694 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:54 +00:00
4921bbbae5
cosmetics: indent
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Originally committed as revision 13692 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:38 +00:00
aa5d6be8df
skip unsupported frame types and substream id's
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Originally committed as revision 13691 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:27 +00:00
be5f17b96b
read frame type from header info into decode context
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Originally committed as revision 13690 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:19 +00:00
3596aa6fe6
get substreamid from ac3 parser
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Originally committed as revision 13689 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:11 +00:00
6730e9f300
get the number of blocks from the ac3 parser and use in the ac3 decoder.
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Originally committed as revision 13688 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-07 22:29:03 +00:00
7af26d14ac
return error on frame sync error
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Originally committed as revision 13654 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-04 00:31:20 +00:00
fb2b88a816
cosmetics: add a comment, remove a comment
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Originally committed as revision 13590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:49 +00:00
9b57545934
simplify
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Originally committed as revision 13589 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 22:12:01 +00:00
6e74513a48
set lfe params at frame init instead of in every block
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Originally committed as revision 13588 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:57:45 +00:00
b85a15fe73
only calculate number of exponent groups when exponents are not reused.
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Originally committed as revision 13587 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:53:31 +00:00
aa148649a4
cosmetics: remove unneeded braces
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Originally committed as revision 13586 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 21:37:28 +00:00
7e13b31c19
10l: cosmetics
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Originally committed as revision 13585 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 19:59:10 +00:00
e25973a1fd
new dba values requires running last 2 bit allocation stages
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Originally committed as revision 13584 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 19:56:54 +00:00
ff5d419e2f
get_transform_coeffs() never returns an error, so make the function and its children return void.
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Originally committed as revision 13582 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 16:04:41 +00:00
fbe52e4188
use enum value for CRC error
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Originally committed as revision 13580 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 15:31:57 +00:00
c78c6d6c58
move header error logging to after CRC check
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Originally committed as revision 13579 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-31 15:30:55 +00:00
bd98e9e230
zero the upper frequencies of the correct coefficients
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Originally committed as revision 13452 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-27 00:43:39 +00:00
eccba2bc4b
safer solution for setting audio parameters
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Originally committed as revision 13402 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 20:02:24 +00:00
cf03a8173a
set audio parameters if frame header is ok, even if crc fails
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Originally committed as revision 13399 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-25 18:54:17 +00:00
Reimar Döffinger
Justin Ruggles
Diego Elio Pettenò
Stefano Sabatini
Carl Eugen Hoyos
Diego Biurrun
Ronald S. Bultje
Jason Garrett-Glaser
Siarhei Siamashka
Thilo Borgmann
Alex Converse
Michael Niedermayer
Loren Merritt
Peter Ross