This is neccessary for maintaining ABI compatibility with FFmpeg 2.1
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  latm: Always reconfigure if no extradata was set previously

See: d039b607Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6e4009d4':
  arm: dcadsp: implement decode_hf as external NEON asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4cb69642':
  dcadec: simplify decoding of VQ high frequencies

Conflicts:
	configure
	libavcodec/dcadec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '7686afd0':
  dca: factorize scaling in inverse ADPCM
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '08e3ea60':
  x86: synth filter float: implement SSE2 version

Conflicts:
	libavcodec/x86/dcadsp.asm
	libavcodec/x86/dcadsp_init.c

See: 2cdbcc00Merged-by: Michael Niedermayer <michaelni@gmx.at>

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: Michael Niedermayer <michaelni@gmx.at>

* commit '57b1eb9f':
  dcadsp: scan coefficients linearly in dca_lfe_fir

Conflicts:
	libavcodec/dcadsp.c

See: 9ae8e231Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ad507d79':
  x86: dcadsp: implement SSE lfe_dir

Conflicts:
	libavcodec/x86/dcadsp.asm

See: 16924311Merged-by: Michael Niedermayer <michaelni@gmx.at>

Results for Arrandale/Windows:
32: 1670 -> 316
64:  728 -> 298
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '87ec849f':
  dcadec: remove scaling in lfe_interpolation_fir

Conflicts:
	libavcodec/dcadec.c
	libavcodec/dcadsp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a55546f4':
  proresenc: Reuse proper dsputil infrastructure for FDCT
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '92e598a5':
  prores: Drop DSP infrastructure for prores encoder bits

Conflicts:
	libavcodec/Makefile
	libavcodec/proresdsp.c
	libavcodec/proresenc_kostya.c

Note, these changes only affect one of the 2 prores encoders we have
If someone wants to add optimizations to the affected encoder, or needs/wants
this infrastructure, then iam happy to revert this
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd6acefe0':
  proresenc: Drop unnecessary DCT permutation bits

Conflicts:
	libavcodec/proresenc_kostya.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b2365049':
  prores: Use consistent names for DSP arch initialization functions

Conflicts:
	libavcodec/proresdsp.c
	libavcodec/proresdsp.h
	libavcodec/x86/proresdsp_init.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

AAC LOAS can have new audio config objects in the stream itself.

Make sure the decoder reconfigures itself when the first one arrives
midstream.

Bug-Id: 644
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes Ticket3212
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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.

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.

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>

This change is inspired by x86 asm where it frees a register.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Results for Arrandale/Windows:
32: 1670 -> 316
64:  728 -> 298
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

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>

None of the encoder bits are arch-optimized.

No permutation is necessary for the FDCT.

* cus/stable:
  lavfi/frei0r: factorize plugin loading with static path
  lavfi/frei0r: search plugins in lib64 dirs on all architectures
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* lukaszmluki/master:
  lavf/ftp: fix seek to nagative position
  lavf/libssh: fix seek to nagative position
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  Give IDCT matrix transpose macro a more descriptive name
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

There's an SSE2 version as well, and x86_64 guarantees that
instruction set is present.
Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This also avoids a macro name clash and related warning on ARM.

Fixes Ticket2799

This should be moved into swscale once we have a CMYK pixel format
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also fail if AV_EF_EXPLODE is set.
We do not fail by default, but rather return some image as it may be usefull to the
end user to see what is on the image, for example text could be read quite fine and
objects recognized.

Possibly fixes Ticket3424
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>