df9844937f
DCA: fix multichannel -> 2 channel downmix.
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Patch by Nick Brereton
Originally committed as revision 24555 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-27 21:45:43 +00:00
08634e7bda
Setup correct channel value when downmixing is required.
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Patch by Nick Brereton
Originally committed as revision 24554 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-27 21:44:09 +00:00
f2401c214d
Use math constant instead of hardcoded rounded value for sqrt(0.5).
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Patch by Christophe.Gisquet (gmail)
Originally committed as revision 24213 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-12 12:32:24 +00:00
b12b16c5d3
Fix side channels when XCh extension is present.
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Patch by Nick Brereton $name AT n$surname DOT net
Originally committed as revision 24210 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-12 09:10:53 +00:00
d0a1885018
Move XCH parameters into context structure.
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Patch by Nick Brereton $name AT n$surname DOT net
Originally committed as revision 24209 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-12 09:00:17 +00:00
8fc0162ac4
Add av_ prefix to bswap macros
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Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:12:30 +00:00
0712c230ae
DCA: Occasionally a false XCH sync word can turn up after the core DTS data,
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to verify the sync word the extension fsize field should be compared to
the core data length field.
Patch by nick.nbrereton@net
Originally committed as revision 24054 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-05 08:16:43 +00:00
324a94b022
DCA: *_bits() -> *_bits_long() where needed, half fix for broken bitstream parsing
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Originally committed as revision 24051 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-05 01:43:47 +00:00
d1177cb589
Support DTS-ES extension (XCh) in dca: Cosmetic cleanup
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Patch by Nick Brereton, nick at nbrereton dot net
Originally committed as revision 23698 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-22 08:35:44 +00:00
774e9acfa7
Support DTS-ES extension (XCh) in dca: add code to handle DTS-ES extension
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Patch by Nick Brereton, nick at nbrereton dot net
Originally committed as revision 23697 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-22 08:34:51 +00:00
3d5a9ba1af
Support DTS-ES extension (XCh) in dca: update and add channel mapping tables for DTS-ES mappings
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Patch by Nick Brereton, nick at nbrereton dot net
Originally committed as revision 23696 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-22 08:34:02 +00:00
6baef06e8f
Support DTS-ES extension (XCh) in dca: move original code around to allow reused by DTS-ES code
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Patch by Nick Brereton, nick at nbrereton dot net
Originally committed as revision 23695 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-22 08:33:00 +00:00
77b4b7c383
Support DTS-ES extension (XCh) in dca: move subband_samples into context structure
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Patch by Nick Brereton, nick at nbrereton dot net
Originally committed as revision 23694 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-22 08:32:01 +00:00
63c3b716d7
Fix typo in macro name.
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Patch by Nick Brereton, nick nbrereton net
Originally committed as revision 23668 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-20 22:07:32 +00:00
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-20 14:45:34 +00:00
2bb29da602
DCA: indent
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Originally committed as revision 22872 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-13 10:15:05 +00:00
69e171364e
DCA: optimise dca_subsubframe()
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8% faster overall on Cortex-A8.
Originally committed as revision 22871 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-13 10:15:00 +00:00
309d16a4a0
DCA: break out lfe_interpolation_fir() inner loops to a function
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This enables SIMD optimisations of this function.
Originally committed as revision 22861 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-12 20:45:25 +00:00
843c7aa8fb
DCA: use FASTDIV in decode_blockcode()
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Originally committed as revision 22855 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-12 16:05:10 +00:00
766fefe8e2
DCA: simplify lfe_interpolation_fir()
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This reorders the lfe_fir tables, and drops the mirrored half,
such that the loops in lfe_interpolation_fir() can be simplified.
The new loop structure should be easier to implement with SIMD.
Static data size is reduced by 2kB.
3% faster on Cortex-A8.
Originally committed as revision 22849 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-12 11:14:55 +00:00
b92d483bac
DCA: use a local variable for loop boundary
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This prevents gcc reloading the value from memory on each iteration
of the loop.
Originally committed as revision 22848 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-12 11:14:51 +00:00
0dc7df28dd
DCA: use some type-punning in qmf_32_subbands()
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Originally committed as revision 22847 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-12 11:14:48 +00:00
f462ed1f82
Make synth_filter a function pointer
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Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-10 16:27:53 +00:00
38d52f3ea3
DCA: align some arrays
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Optimised implementations of the synth filter will require these
arrays 16-byte aligned.
Originally committed as revision 22826 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-10 16:27:47 +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
1429224b04
Move FFT parts from dsputil.h to fft.h
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Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-06 14:34:46 +00:00
84dc2d8afa
Remove DECLARE_ALIGNED_{8,16} macros
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These macros are redundant. All uses are replaced with the generic
DECLARE_ALIGNED macro instead.
Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-06 14:24:59 +00:00
4e06acbde4
Fixed a segfault in the DCA decoder with corrupted streams.
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It happens when the number of channels defined by DCAContext:acmod is lower
than DCAContext:prim_channels. In this case, dca_subsubframe() will call
qmf_32_subbands() using s->channel_order_tab[] entries equal to -1.
Originally committed as revision 22083 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-02-26 18:50:01 +00:00
c67278098d
Move array specifiers outside DECLARE_ALIGNED() invocations
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Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-22 03:25:11 +00:00
d49dded591
Remove unused variable j.
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Originally committed as revision 20398 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-28 14:40:05 +00:00
4f99c31c39
Split synth filter out of dca.c.
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Originally committed as revision 20396 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-28 10:51:51 +00:00
268fcbe2c8
Fix 100l incorrect bitmask check.
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Originally committed as revision 20197 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-10 08:49:57 +00:00
144fec83b3
dca and aac decoders use float_to_int16_interleave, so check for
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the C version of that rather than float_to_int16.
Fixes output on ARM/VFP
Originally committed as revision 20192 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-08 14:40:14 +00:00
01b2214758
Merge FFTContext and MDCTContext
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Originally committed as revision 19931 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-20 17:30:20 +00:00
6d9d289e76
DCA: move an aligned array from stack to context
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Originally committed as revision 19805 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-10 08:49:59 +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
0cfa85dd9f
Make VLC tables in DCA decoder use INIT_VLC_USE_NEW_STATIC
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Originally committed as revision 18643 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-21 17:37:03 +00:00
9106a698e7
Rename bitstream.h to get_bits.h.
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Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-13 16:20:26 +00:00
b275500706
Split bitstream.h, put the bitstream writer stuff in the new file
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put_bits.h.
Originally committed as revision 18461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-12 08:35:26 +00:00
e161e007be
Use INIT_VLC_USE_STATIC and not its value "1".
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Originally committed as revision 18430 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-11 11:47:15 +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
bad5537e2c
Use full internal pathname in doxygen @file directives.
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-01 02:00:19 +00:00
d041a59897
Add support for parsing and decoding DCA-HD streams.
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Originally committed as revision 15951 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-29 10:06:37 +00:00
92765276fb
Proper channel output reordering for the dca decoder.
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Originally committed as revision 15832 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-15 20:31:03 +00:00
e22192ecc3
Comment typo
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Originally committed as revision 15801 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-11 08:46:29 +00:00
cd027b511e
Remove channel layout table that only should be used by encoders.
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Originally committed as revision 15800 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-11 08:30:32 +00:00
c6eaba62e8
Change the dca channel layout, S -> SIDE not BACK.
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Originally committed as revision 15769 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-02 21:51:27 +00:00
9d9b9d32e6
Change multichannel API define prefix from "CHANNEL_" to "CH_".
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Originally committed as revision 15768 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-02 21:04:28 +00:00
48dc2fb800
Guess channel layout based on the number of channels if a custom layout is specified in amode.
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Originally committed as revision 15766 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-01 20:49:37 +00:00
87c3b9bce3
Add channel layouts for dca.
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Originally committed as revision 15765 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-01 20:27:05 +00:00
d5b3a86393
Fix compilation, remove stray ;
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Originally committed as revision 15735 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-28 15:20:52 +00:00
9ed73b4870
Fix selection of quant step table
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Originally committed as revision 15734 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-28 14:50:46 +00:00
ba5fc967f6
Disable codec downmix when not using simd instead of silently produce silence
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Originally committed as revision 15715 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-26 10:14:16 +00:00
1402ee721a
Fix dca decoder with non simd float2int16 conversion
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Originally committed as revision 15714 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-26 09:54:53 +00:00
49c91c34b3
Fix compilation with TRACE
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Originally committed as revision 15713 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-26 09:50:15 +00:00
1d8370aad9
Remove the cos_mod table that has become unused after replacing the imdct
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by ff_imdct_half().
Originally committed as revision 15050 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 11:01:58 +00:00
89df5e95bb
Replace obfuscated mdct in qmf_32_subbands() by ff_imdct_half().
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Originally committed as revision 15049 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 10:47:13 +00:00
47f0e05295
Get rid of the 512 sample memmove().
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Originally committed as revision 15048 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-30 10:41:53 +00:00
b854197919
Half the size of subband_fir_noidea and get rid of memmove & memset of it.
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Originally committed as revision 15033 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 18:37:40 +00:00
ef8676276d
Move t1 and t2 declaration from the QMF code closer to where they are used.
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Originally committed as revision 15024 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 14:53:07 +00:00
addafb0e0a
Simplify (drop useless intermediate sum and diff arrays).
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Originally committed as revision 15023 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 14:44:47 +00:00
c55ecb9c27
5,1l: samples_chanptr[] should be (const float *)
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Originally committed as revision 15022 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 10:14:01 +00:00
a7bc9d1b71
dca: Set data_size outside block loop.
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Originally committed as revision 15021 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 10:12:44 +00:00
8ed96a5eba
dca: Do float -> int16 interleaving in-place using s->dsp.float_to_int16_interleave()
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Originally committed as revision 15020 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-29 10:09:51 +00:00
cc09e77e2a
Correct scaling factor in DCA decoder synthesis.
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Patch by Alexander Patrakov ($lastname at gmail.com)
Thread: dca.c: output scale is a bit off
Originally committed as revision 14937 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-24 05:47:45 +00:00
56523713e5
Remove redundant FFMIN().
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Originally committed as revision 14918 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 13:35:12 +00:00
4df7beb368
Increase buffer size to 16384 patch by Alexander E. Patrakov" patrakov gmail
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This fixes a (probably not exploitable) buffer overflow (apparently unknown to its author).
Originally committed as revision 14917 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-23 13:29:13 +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
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
d5202e4fda
Add long names to many AVCodec declarations.
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patch by Stefano Sabatini, stefano.sabatini-lala poste it
Originally committed as revision 13005 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-27 10:52:44 +00:00
4a24837e07
Only set channels in the stream if previously unset, fixes resampling crash on broken dca frames
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Originally committed as revision 12780 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-10 06:15:17 +00:00
98a6fff98c
Apply 'cold' attribute to init/uninit functions in libavcodec
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Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-21 03:11:20 +00:00
ebf71dbda5
Don't use unchecked data from the bitstream.
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Originally committed as revision 12351 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-06 14:22:02 +00:00
5e53486545
typo fix: inited --> initialized
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Originally committed as revision 11920 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-13 09:26:10 +00:00
a9f8715854
Fix const qualifer issues found by -Wcast-qual.
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Originally committed as revision 11703 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-01 01:40:46 +00:00
cfec09e914
check for request_channels in dca init function
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Originally committed as revision 11423 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-01-05 21:23:57 +00:00
9389e63c83
Enable proper output from the LFE channel, based on patch from Mathias Rauen dear dot madshi at net
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Originally committed as revision 11407 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-01-04 20:02:10 +00:00
79328e9cc7
Make DCA decoder honor avctx->request_channels in a more advisory way.
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Originally committed as revision 11221 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-15 07:01:33 +00:00
b639896915
Use the correct "const float *" type for variable instead of casting const away.
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Originally committed as revision 11136 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-12-02 21:12:43 +00:00
75316e1dcc
Set data_size to zero when DCA header parse failed
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Patch by Limin Wang <lance('\\'>>1)lmwang>(0x24^'D')<gmail>('/' & 0xFE)<com>
Thread [PATCH] set data_size to zero if failed to parse dca header
Originally committed as revision 10423 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-09-06 14:55:13 +00:00
b1ec601f7f
Add request_channels member to AVCodecContext so we now have a proper
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way to tell the decoder how many output channels we would like.
Originally committed as revision 10199 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-23 20:28:28 +00:00
32dd6a9c78
fix dca_bitalloc_index decoder init
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Patch by Sergey Vlasov (printf("%csu at altlinux%s",'v',".ru");)
Thread [FFmpeg-devel] [PATCH] dca: fix dca_bitalloc_index decoder init
Originally committed as revision 9115 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-24 04:08:48 +00:00
56e4603e67
Fix dca.c compilation with #define TRACE
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Patch by Sergey Vlasov (v\0163u at \0141ltlinux.ru)
Thread [FFmpeg-devel] [PATCH] dca: fix compilation with #define TRACE
Originally committed as revision 9114 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-24 04:02:47 +00:00
56fd7cc584
Better error reporting.
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Originally committed as revision 9056 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-18 10:06:07 +00:00
5a6a6cc7dc
Fix multiple "‘inline/static’ is not at beginning of declaration" warnings.
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Originally committed as revision 8894 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-05 12:18:14 +00:00
98c98e04cc
Move dca parser to its own file.
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Originally committed as revision 8881 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-03 23:50:24 +00:00
6369e6ebc3
cosmetics: indention after last commit
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Originally committed as revision 8876 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-02 20:42:44 +00:00
c31a76e4ef
use downmixing coefficients in dca decoder.
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reference:
Subject: [Ffmpeg-devel] [PATCH] DTS multichannel
Date: Wed, 25 Apr 2007 16:25:18 -0400
Originally committed as revision 8875 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-02 20:33:32 +00:00
cc82662662
enable multichannel output in dca decoder.
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reference:
Subject: [Ffmpeg-devel] [PATCH] DTS multichannel
Date: Wed, 25 Apr 2007 16:25:18 -0400
Originally committed as revision 8874 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-02 20:31:32 +00:00
9f1473b304
fix exploitable buffer overflow
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Originally committed as revision 8850 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-27 12:41:55 +00:00
c5d1349242
1000l to myself as used VLC indexes were totally wrong
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Originally committed as revision 8800 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-24 17:31:39 +00:00
2b100ab2bf
changes some function declarations from () to (void) as per ansi c.
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Patch by Stefan Huehner % stefan A huehner P org %
Originally committed as revision 8625 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-04 11:51:08 +00:00
01ca9ac334
DCA decoder
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Originally committed as revision 8141 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-27 06:30:40 +00:00
Nick Brereton
Christophe Gisquet
Måns Rullgård
Benjamin Larsson
Diego Biurrun
Stefano Sabatini
Laurent Aimar
Michael Niedermayer
Reimar Döffinger
David Conrad
Siarhei Siamashka
Kostya Shishkov
Carl Eugen Hoyos
Thilo Borgmann
Andreas Öman
Alexander E. Patrakov
Peter Ross
Zuxy Meng
Justin Ruggles
Limin Wang
Sergey Vlasov
Stefan Huehner