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94 Commits

Author SHA1 Message Date
Nick Brereton
ace7f813cd dca: fix dynrange coefficient in xch 
Patch by Nick Brereton

Originally committed as revision 24637 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-31 22:15:59 +00:00
Nick Brereton
df9844937f DCA: fix multichannel -> 2 channel downmix. 
Patch by Nick Brereton

Originally committed as revision 24555 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-27 21:45:43 +00:00
Nick Brereton
08634e7bda Setup correct channel value when downmixing is required. 
Patch by Nick Brereton

Originally committed as revision 24554 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-27 21:44:09 +00:00
Christophe Gisquet
f2401c214d Use math constant instead of hardcoded rounded value for sqrt(0.5). 
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
Nick Brereton
b12b16c5d3 Fix side channels when XCh extension is present. 
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
Nick Brereton
d0a1885018 Move XCH parameters into context structure. 
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
Måns Rullgård
8fc0162ac4 Add av_ prefix to bswap macros 
Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-10 22:12:30 +00:00
Nick Brereton
0712c230ae DCA: Occasionally a false XCH sync word can turn up after the core DTS data, 
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
Benjamin Larsson
324a94b022 DCA: *_bits() -> *_bits_long() where needed, half fix for broken bitstream parsing 
Originally committed as revision 24051 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-05 01:43:47 +00:00
Nick Brereton
d1177cb589 Support DTS-ES extension (XCh) in dca: Cosmetic cleanup 
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
Nick Brereton
774e9acfa7 Support DTS-ES extension (XCh) in dca: add code to handle DTS-ES extension 
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
Nick Brereton
3d5a9ba1af Support DTS-ES extension (XCh) in dca: update and add channel mapping tables for DTS-ES mappings 
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
Nick Brereton
6baef06e8f Support DTS-ES extension (XCh) in dca: move original code around to allow reused by DTS-ES code 
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
Nick Brereton
77b4b7c383 Support DTS-ES extension (XCh) in dca: move subband_samples into context structure 
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
Nick Brereton
63c3b716d7 Fix typo in macro name. 
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
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
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
Måns Rullgård
2bb29da602 DCA: indent 
Originally committed as revision 22872 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-13 10:15:05 +00:00
Måns Rullgård
69e171364e DCA: optimise dca_subsubframe() 
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
Måns Rullgård
309d16a4a0 DCA: break out lfe_interpolation_fir() inner loops to a function 
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
Måns Rullgård
843c7aa8fb DCA: use FASTDIV in decode_blockcode() 
Originally committed as revision 22855 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-12 16:05:10 +00:00
Måns Rullgård
766fefe8e2 DCA: simplify lfe_interpolation_fir() 
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
Måns Rullgård
b92d483bac DCA: use a local variable for loop boundary 
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
Måns Rullgård
0dc7df28dd DCA: use some type-punning in qmf_32_subbands() 
Originally committed as revision 22847 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-12 11:14:48 +00:00
Måns Rullgård
f462ed1f82 Make synth_filter a function pointer 
Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-10 16:27:53 +00:00
Måns Rullgård
38d52f3ea3 DCA: align some arrays 
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
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
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
Måns Rullgård
1429224b04 Move FFT parts from dsputil.h to fft.h 
Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-06 14:34:46 +00:00
Måns Rullgård
84dc2d8afa Remove DECLARE_ALIGNED_{8,16} macros 
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
Laurent Aimar
4e06acbde4 Fixed a segfault in the DCA decoder with corrupted streams. 
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
Måns Rullgård
c67278098d Move array specifiers outside DECLARE_ALIGNED() invocations 
Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-22 03:25:11 +00:00
Michael Niedermayer
d49dded591 Remove unused variable j. 
Originally committed as revision 20398 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-28 14:40:05 +00:00
Michael Niedermayer
4f99c31c39 Split synth filter out of dca.c. 
Originally committed as revision 20396 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-28 10:51:51 +00:00
Reimar Döffinger
268fcbe2c8 Fix 100l incorrect bitmask check. 
Originally committed as revision 20197 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-10 08:49:57 +00:00
David Conrad
144fec83b3 dca and aac decoders use float_to_int16_interleave, so check for 
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
Måns Rullgård
01b2214758 Merge FFTContext and MDCTContext 
Originally committed as revision 19931 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-20 17:30:20 +00:00
Måns Rullgård
6d9d289e76 DCA: move an aligned array from stack to context 
Originally committed as revision 19805 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-10 08:49:59 +00:00
Siarhei Siamashka
7d485f165f Support for getting (i)MDCT output multiplied by a constant scaling factor. 
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
Kostya Shishkov
0cfa85dd9f Make VLC tables in DCA decoder use INIT_VLC_USE_NEW_STATIC 
Originally committed as revision 18643 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-21 17:37:03 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
Stefano Sabatini
b275500706 Split bitstream.h, put the bitstream writer stuff in the new file 
put_bits.h.

Originally committed as revision 18461 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-12 08:35:26 +00:00
Carl Eugen Hoyos
e161e007be Use INIT_VLC_USE_STATIC and not its value "1". 
Originally committed as revision 18430 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-11 11:47:15 +00:00
Thilo Borgmann
7a00bbad21 Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an 
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
Diego Biurrun
bad5537e2c Use full internal pathname in doxygen @file directives. 
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
Kostya Shishkov
d041a59897 Add support for parsing and decoding DCA-HD streams. 
Originally committed as revision 15951 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-29 10:06:37 +00:00
Benjamin Larsson
92765276fb Proper channel output reordering for the dca decoder. 
Originally committed as revision 15832 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-15 20:31:03 +00:00
Benjamin Larsson
e22192ecc3 Comment typo 
Originally committed as revision 15801 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-11 08:46:29 +00:00
Benjamin Larsson
cd027b511e Remove channel layout table that only should be used by encoders. 
Originally committed as revision 15800 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-11 08:30:32 +00:00
Benjamin Larsson
c6eaba62e8 Change the dca channel layout, S -> SIDE not BACK. 
Originally committed as revision 15769 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-02 21:51:27 +00:00
Andreas Öman
9d9b9d32e6 Change multichannel API define prefix from "CHANNEL_" to "CH_". 
Originally committed as revision 15768 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-02 21:04:28 +00:00
Benjamin Larsson
48dc2fb800 Guess channel layout based on the number of channels if a custom layout is specified in amode. 
Originally committed as revision 15766 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-11-01 20:49:37 +00:00