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44 commits

Author SHA1 Message Date
Anton Khirnov
c8c2dfbc37 lavu: move LOCAL_ALIGNED from internal.h to mem_internal.h 
That is a more appropriate place for it.
 2021-01-01 14:11:01 +01:00
Michael Niedermayer
9244b839b7 avcodec/dcadsp: Fix runtime error: signed integer overflow 
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-04-09 03:51:19 +02:00
Michael Niedermayer
29638d4db9 avcodec/dcadsp: Fix 2 runtime error: signed integer overflow: -1958094138 - 1078906344 cannot be represented in type 'int' 
Fixes: 722/clusterfuzz-testcase-5711268868521984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-03-05 12:01:48 +01:00
Michael Niedermayer
949d2176ef avcodec/dca: Fix multiple runtime error: signed integer overflow 
Fixes: 680/clusterfuzz-testcase-5416627266912256
Fixes: 681/clusterfuzz-testcase-5013323462475776

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-02-28 01:13:52 +01:00
Michael Niedermayer
92188c8f57 avcodec/dcadsp: Fix runtime error: signed integer overflow: 394625024 * 8 cannot be represented in type 'int' 
Fixes: 643/clusterfuzz-testcase-5209078743695360

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-02-22 02:42:48 +01:00
foo86
6c44696b3d avcodec/dca: add DTS Express (LBR) decoder 
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-05-10 20:33:28 -03:00
James Almer
bd63ecec78 avcodec/dcadsp: use LOCAL_ALIGNED_32 instead of LOCAL_ALIGNED(32, ...) 2016-05-06 00:47:55 -03:00
James Almer
8ae7447941 x86/dcadec: add ff_lfe_fir0_float_{sse,sse2,avx,fma3} 
Up to ~4 times faster on x86_64, ~8 times on x86_32 if compiling using x87 fp math.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-02-06 01:36:55 -03:00
James Almer
3e9b8ffc9b avcodec/dcadsp: rename lfe_fir_float functions 
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-02-06 01:29:10 -03:00
James Almer
16af350ac5 avcodec/dcadsp: replace intptr_t with ptrdiff_t 
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-02-05 11:17:04 -03:00
foo86
ae5b2c5250 avcodec/dca: add new decoder based on libdcadec 2016-01-31 17:09:38 +01:00
foo86
4608996772 avcodec/dca: remove old decoder 
Remove all files and functions which are not going to be reused,
and disable all functions and FATE tests temporarily which will be.
 2016-01-31 17:09:38 +01:00
Hendrik Leppkes
7fe77aa62e Merge commit '40d9496773' 
* commit '40d9496773':
  dca: use defines for subband related constants

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-01-02 17:52:34 +01:00
Hendrik Leppkes
d03da3e240 Merge commit '2008f76054' 
* commit '2008f76054':
  dca: remove unused decode_hf function and quant_d tables

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-01-02 13:17:48 +01:00
Hendrik Leppkes
af1238f863 Merge commit 'aebf07075f' 
* commit 'aebf07075f':
  dca: change the core to work with integer coefficients.

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-01-02 13:08:29 +01:00
Hendrik Leppkes
de3a33784c Merge commit 'c33c1fa8af' 
* commit 'c33c1fa8af':
  arm64: convert dcadsp neon asm from arm

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-01-02 11:10:24 +01:00
Alexandra Hájková
40d9496773 dca: use defines for subband related constants 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2015-12-31 11:40:32 +01:00
Alexandra Hájková
2008f76054 dca: remove unused decode_hf function and quant_d tables 
They were superseded with their integer equivalents. Rename integer
decode_hf to decode_hf.
 2015-12-24 13:58:18 +01:00
Alexandra Hájková
aebf07075f dca: change the core to work with integer coefficients. 
The DCA core decoder converts integer coefficients read from the
bitstream to floats just after reading them (along with dequantization).
All the other steps of the audio reconstruction are done with floats
which makes the output for the DTS lossless extension (XLL)
actually lossy.
This patch changes the DCA core to work with integer coefficients
until QMF. At this point the integer coefficients are converted to floats.
The coefficients for the LFE channel (lfe_data) are not touched.
This is the first step for the really lossless XLL decoding.
 2015-12-23 11:50:18 +01:00
Janne Grunau
c33c1fa8af arm64: convert dcadsp neon asm from arm 
~2% faster dts decoding overall.

                    cortex-a57   cortex-a53
dca_decode_hf_c:    474.8        1659.9
dca_decode_hf_neon: 225.2         301.1
dca_lfe_fir0_c:     913.2        1537.7
dca_lfe_fir0_neon:  286.8         451.9
dca_lfe_fir1_c:     848.7        1711.5
dca_lfe_fir1_neon:  387.1         506.4
 2015-12-14 16:45:01 +01:00
Michael Niedermayer
7d43fbe3ae Merge commit '45ff7c93dd' 
* commit '45ff7c93dd':
  dca: K&R formatting cosmetics

Conflicts:
	libavcodec/dca_parser.c
	libavcodec/dcadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-09-16 20:31:02 +02:00
Gabriel Dume
45ff7c93dd dca: K&R formatting cosmetics 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-09-16 04:42:32 -07:00
Michael Niedermayer
fb3c33f3cd Merge commit '4cb6964244' 
* commit '4cb6964244':
  dcadec: simplify decoding of VQ high frequencies

Conflicts:
	configure
	libavcodec/dcadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-28 21:41:19 +01:00
Michael Niedermayer
5333e0dd66 Merge commit '57b1eb9f75' 
* commit '57b1eb9f75':
  dcadsp: scan coefficients linearly in dca_lfe_fir

Conflicts:
	libavcodec/dcadsp.c

See: 9ae8e23188
Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-28 19:40:40 +01:00
Michael Niedermayer
90f674d55b Merge commit '87ec849fe9' 
* commit '87ec849fe9':
  dcadec: remove scaling in lfe_interpolation_fir

Conflicts:
	libavcodec/dcadec.c
	libavcodec/dcadsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-28 18:14:12 +01:00
Christophe Gisquet
4cb6964244 dcadec: simplify decoding of VQ high frequencies 
The vector dequantization has a test in a loop preventing effective SIMD
implementation. By moving it out of the loop, this loop can be DSPized.

Therefore, modify the current DSP implementation. In particular, the
DSP implementation no longer has to handle null loop sizes.

The decode_hf implementations have following timings:

For x86 Arrandale:
        C  SSE SSE2 SSE4
win32: 260 162  119  104
win64: 242 N/A   89   72

The arm NEON optimizations follow in a later patch as external asm. The
now unused check for the y modifier in arm inline asm is removed from
configure.
 2014-02-28 13:03:22 +01:00
Christophe Gisquet
57b1eb9f75 dcadsp: scan coefficients linearly in dca_lfe_fir 
This change is inspired by x86 asm where it frees a register.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-28 13:00:47 +01:00
Christophe Gisquet
87ec849fe9 dcadec: remove scaling in lfe_interpolation_fir 
The scaling factor is constant so it is faster to scale the
FIR coefficients in the tables during compilation.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-28 13:00:47 +01:00
Christophe Gisquet
9ae8e23188 dcadsp: scan coefficients linearly instead. 
This change is inspired by x86 asm, where this frees a register.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-15 20:08:08 +01:00
Christophe Gisquet
45854df9a5 dcadsp: split lfe_dir cases 
The x86 runs short on registers because numerous elements are not static.
In addition, splitting them allows more optimized code, at least for x86.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-08 02:04:12 +01:00
Michael Niedermayer
82ae8a44e6 Merge commit '5b59a9fc61' 
* commit '5b59a9fc61':
  x86: dcadsp: implement int8x8_fmul_int32

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-08 01:20:33 +01:00
Christophe Gisquet
481a46a462 dcadsp: add int8x8_fmul_int32 to DSP context 
It is currently declared as a macro who is set to inlinable functions,
among which a Neon and a default C implementations.

Add a DSP parameter to each inline function, unused except by the
default C implementation which calls a function from the DSP context.

On an Arrandale CPU, gain for an inlined SSE2 function vs. a call:
- Win32: 29 to 26 cycles
- Win64: 25 to 23 cycles

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-08 00:55:42 +01:00
Christophe Gisquet
5fdbfcb5b7 dcadsp: split lfe_dir cases 
The x86 runs short on registers because numerous elements are not static.
In addition, splitting them allows more optimized code, at least for x86.

Arm asm changes by Janne Grunau.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-07 22:54:18 +01:00
Christophe Gisquet
5b59a9fc61 x86: dcadsp: implement int8x8_fmul_int32 
For the callable function (as opposed to the inline one):
         C  SSE  SSE2  SSE4
Win32:  47   42   29    26
Win64:  30   33   25    23
The SSE version is neither compiled nor set for ARCH_X86_64, as the
inlinable function takes over.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-07 22:52:40 +01:00
Christophe Gisquet
2bd44cb705 dcadsp: add int8x8_fmul_int32 to dsp context 
It is currently declared as a macro who is set to inlinable functions,
among which a Neon and a default C implementations.

Add a DSP parameter to each inline function, unused except by the
default C implementation which calls a function from the DSP context.

On an Arrandale CPU, gain for an inlined SSE2 function vs. a call:
- Win32: 29 to 26 cycles
- Win64: 25 to 23 cycles

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-07 22:51:59 +01:00
Michael Niedermayer
366e415836 Merge commit '800ffab48a' 
* commit '800ffab48a':
  dcadsp: Add a new method, qmf_32_subbands

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-22 12:10:59 +02:00
Ben Avison
800ffab48a dcadsp: Add a new method, qmf_32_subbands 
This does most of the work formerly carried out by
the static function qmf_32_subbands() in dcadec.c.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-07-22 10:15:42 +03:00
Michael Niedermayer
0aa095483d Merge commit '6fee1b90ce' 
* commit '6fee1b90ce':
  avcodec: Add av_cold attributes to init functions missing them

Conflicts:
	libavcodec/aacpsy.c
	libavcodec/atrac3.c
	libavcodec/dvdsubdec.c
	libavcodec/ffv1.c
	libavcodec/ffv1enc.c
	libavcodec/h261enc.c
	libavcodec/h264_parser.c
	libavcodec/h264dsp.c
	libavcodec/h264pred.c
	libavcodec/libschroedingerenc.c
	libavcodec/libxvid_rc.c
	libavcodec/mpeg12.c
	libavcodec/mpeg12enc.c
	libavcodec/proresdsp.c
	libavcodec/rangecoder.c
	libavcodec/videodsp.c
	libavcodec/x86/proresdsp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-05 11:34:29 +02:00
Diego Biurrun
6fee1b90ce avcodec: Add av_cold attributes to init functions missing them 2013-05-04 21:09:45 +02:00
Justin Ruggles
a8ae4e0e7b Remove unneeded add bias from 3 functions. 
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
Måns Rullgård
08255107cf DCA: ARM/NEON optimised lfe_fir 
Originally committed as revision 22863 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-12 20:45:33 +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
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Justin Ruggles
80ba1ddb58 Remove unneeded add bias from 3 functions. 
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