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>

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

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>

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

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

Add parenthesis around "MD5" in the request string as required by
RFC 2069.

Fixes ticket #3417.

Reported and tested by Haarman
Analyzed-by: Eugen-Andrei Gavriloaie

This combination exists in the wild
Fixes Ticket3131
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

* qatar/master:
  af_compand: add a dependency on strtok_r

Conflicts:
	configure

Not merged as FFmpegs compand filter does not depend on strtok_r
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Seems i mistakely tested just with threads=1
Fixes part of Ticket3386
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket3386
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Marton Balint <cus@passwd.hu>

As Reimar Döffinger pointed out there are non-x86 64bit architectures as well.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Marton Balint <cus@passwd.hu>

* qatar/master:
  build: Do not redundantly specifiy H.263-related object files for MSMPEG4v*
Merged-by: Michael Niedermayer <michaelni@gmx.at>