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Author SHA1 Message Date
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
Janne Grunau
7686afd049 dca: factorize scaling in inverse ADPCM 
Based on a patch from Christophe Gisquet.

Unrolling of the m == 0 case avoids a possible use of the uninitilized
value sum when s->predictor_history is not set. I failed to find a
sample for it. It also reduced the cycle count from 220 to 150 on
sandy bridge, x86_64 linux, gcc 4.8.2 compared to his patch.
 2014-02-28 13:00:48 +01:00
Christophe Gisquet
08e3ea60ff x86: synth filter float: implement SSE2 version 
Timings for Arrandale:
          C    SSE
win32:  2108   334
win64:  1152   322

Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
the jmp destination being aligned.

Unrolling for ARCH_X86_64 is a 20 cycles gain.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-28 13:00:48 +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
ad507d7907 x86: dcadsp: implement SSE lfe_dir 
Results for Arrandale/Windows:
32: 1670 -> 316
64:  728 -> 298

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
Diego Biurrun
a55546f48d proresenc: Reuse proper dsputil infrastructure for FDCT 2014-02-28 11:19:47 +01:00
Diego Biurrun
92e598a57a prores: Drop DSP infrastructure for prores encoder bits 
None of the encoder bits are arch-optimized.
 2014-02-28 11:17:25 +01:00
Diego Biurrun
d6acefe058 proresenc: Drop unnecessary DCT permutation bits 
No permutation is necessary for the FDCT.
 2014-02-28 11:00:24 +01:00
Diego Biurrun
b23650491f prores: Use consistent names for DSP arch initialization functions 2014-02-28 10:34:55 +01:00
Diego Biurrun
f2408ec9d7 Give IDCT matrix transpose macro a more descriptive name 
This also avoids a macro name clash and related warning on ARM.
 2014-02-27 13:38:00 -08:00
Anton Khirnov
291e49d4e7 af_compand: add a dependency on strtok_r 2014-02-26 21:59:14 +01:00
Diego Biurrun
a63ac1106d build: Do not redundantly specifiy H.263-related object files for MSMPEG4v* 
These are already covered through dependencies specified in configure.
 2014-02-26 19:44:55 +01:00
Andrew Kelley
738f83582a lavfi: add compand audio filter 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-02-26 08:09:58 +01:00
Diego Biurrun
4ec336484d parser: cosmetics: Drop some unnecessary parentheses 2014-02-25 13:40:47 +01:00
Anton Khirnov
e7dfaf16a4 libavfilter: example audio filtering program 
Based on a patch by Andrew Kelley <superjoe30@gmail.com>

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-02-25 13:22:10 +01:00
Luca Barbato
a1c699659d parser: K&R formatting cosmetics 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-02-25 12:28:33 +01:00
Diego Biurrun
ed61f3ca8a parser: Remove commented-out cruft 2014-02-25 11:59:05 +01:00
Janne Grunau
5ea14d48a8 texi2pod: always declare the pod file as UTF-8 encoded 2014-02-24 23:36:09 +01:00
Vittorio Giovara
c91488ab33 doc: fix one accented word 2014-02-24 17:54:03 +01:00
Vittorio Giovara
48d1ed9c83 doc: name correct header 2014-02-24 17:54:03 +01:00
Anton Khirnov
39c2880eea af_volume: preserve frame properties 2014-02-24 17:32:26 +01:00
Anton Khirnov
dcc7e4bf1d af_resample: preserve frame properties 2014-02-24 17:30:48 +01:00
Anton Khirnov
67f2a68814 avconv: remove a write-only variable 2014-02-24 17:30:48 +01:00
Derek Buitenhuis
8aca00cc2b libx265: Properly handled dynamic linking with MSVC 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-02-24 11:07:33 -05:00
Derek Buitenhuis
0f7fa48cf1 libx265: Support SAR 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-02-24 11:07:33 -05:00
Derek Buitenhuis
2142b2efcd libx265: Support 4:4:4 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-02-24 11:06:59 -05:00
Derek Buitenhuis
d00a504b24 libx265: Update API usage 
Framerate is now a sane rational instead of an integer, and
inputDepth is changed to what it actually is.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-02-24 15:50:04 +00:00
Anton Khirnov
30517a9f05 Use av_frame_copy() to simplify code where appropriate. 2014-02-24 07:25:07 +01:00
Anton Khirnov
8feac29cc4 lavc: use AVFrame API properly in ff_reget_buffer() 2014-02-24 07:25:07 +01:00
Anton Khirnov
1155fd02ae frame: add a convenience function for copying AVFrame data 2014-02-24 07:25:07 +01:00
Anton Khirnov
746dca483a avconv: support forcing codec tags for input streams 2014-02-24 07:25:07 +01:00
James Almer
d59fcdaff3 x86: add detection for Bit Manipulation Instruction sets 
Based on x264 code

Signed-off-by: James Almer <jamrial@gmail.com>
 2014-02-23 15:29:36 +01:00
James Almer
1b932eb150 x86: add detection for FMA3 instruction set 
Based on x264 code

Signed-off-by: James Almer <jamrial@gmail.com>
 2014-02-23 15:29:36 +01:00
James Almer
10b0161d78 x86: add missing XOP checks and macros 
Signed-off-by: James Almer <jamrial@gmail.com>
 2014-02-23 15:29:36 +01:00
Janne Grunau
5800ba0db6 configure: disable cpunop if the check fails 
Moving cpunop from the HAVE_LIST to the ARCH_EXT_LIST_X86 has the side
effect of enabling it. The semantics of the check have to be changed
from enable if successful to disable if unsuccessful. This was missing
in 2b0bb69997 causing build errors with
nasm.
 2014-02-23 15:29:20 +01:00
Luca Barbato
8eeacf31c5 hevc: Do not left shift a negative value in hevc_loop_filter_chroma 2014-02-23 14:34:41 +01:00
Luca Barbato
ff486c0f7f hevc: Do not right shift a negative value in get_pcm 2014-02-23 14:34:40 +01:00
Luca Barbato
50c988aa6d hevc: Drop unnecessary shifts in deblocking_filter_CTB 
beta_offset is pre-multiplied by 2.
 2014-02-23 14:34:34 +01:00
Anton Khirnov
1db03a6864 lavr: return an error if a avresample_open() is called on an open context 2014-02-22 20:53:09 +01:00
Anton Khirnov
7e86c27b4e lavr: add a function for checking whether AVAudioResampleContext is open 2014-02-22 20:52:36 +01:00
Luca Barbato
d922c5a5fb h264: Fix a typo from the previous commit 
f777504f64 changed a - in +

CC: libav-stable@libav.org
 2014-02-22 12:26:32 +01:00
Tomas Härdin
c416b5cdf1 mxf: Add DNxHD UL 
Note that the old DNxHD UL is actually JPEG 2000 according to RP224.
Leaving it as-is for now.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-02-21 15:46:10 +01:00
Philip de Nier
a9099e0402 mxf: Add uncompressed 422 8-bit rawvideo UL 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-02-21 15:46:05 +01:00
Diego Biurrun
dc9e05e279 libvorbis: Give consistent names to all functions, structs, and defines 2014-02-21 11:08:09 +01:00
Vittorio Giovara
f777504f64 h264: Lower bound check for slice offsets 
And use the value from the specification.

Sample-Id: 00000451-google
Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-02-20 18:58:38 +01:00
Luca Barbato
5c79d2e12d avconv: Do not divide by zero 2014-02-20 18:58:38 +01:00
Luca Barbato
d6a27f885b configure: Add usan to the toolchain presets 
clang-3.4 and gcc-4.9 have it.
 2014-02-20 18:58:38 +01:00
Diego Biurrun
2b0bb69997 configure: Move cpunop into ARCH_EXT_LIST_X86 
It is a processor feature, so it belongs there.
 2014-02-20 18:20:08 +01:00
Diego Biurrun
6adf4290eb configure: Move inet_aton check into network function check block 2014-02-20 18:20:07 +01:00