This makes output equally precise as vf_ssim.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

It is well known that fabs and fabsf are at least as fast and sometimes
faster than the FFABS macro, at least on the gcc+glibc combination.
For instance, see the reference:
http://patchwork.sourceware.org/patch/6735/.
This was a patch to glibc in order to remove their usages of a macro.

The reason essentially boils down to fabs using the __builtin_fabs of
the compiler, while FFABS needs to infer to not use a branch and to
simply change the sign bit. Usually the inference works, but sometimes
it does not. This may be easily checked by looking at the asm.

This also has the added benefit of reducing macro usage, which has
problems with side-effects.

Note that avcodec is not handled here, as it is huge and
most things there are integer arithmetic anyway.

Tested with FATE.
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

* commit '3ee2c60c':
  utils: Use data buffers directly instead of an AVPicture
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'ff7956fc':
  avplay: Replace avpicture functions with imgutils

avplay and ffplay have diverged quite a bit, and ffplay should be updated
independently.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'a17a7661':
  lavc: Add data and linesize to AVSubtitleRect
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

avcodec/nuv: Fix 'libavcodec/nuv.c:83:19: warning: passing argument 3 of av_image_copy from incompatible pointer type'
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'f890677d':
  Replace any remaining avpicture function with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Fixes #4958 as found by nicol.
Signed-off-by: Lou Logan <lou@lrcd.com>

* commit '13bddab7':
  nuv: Replace avpicture functions with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '48c06386':
  dpx: Replace avpicture functions with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'f0a10657':
  roqvideodec: Replace avpicture functions with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'ef3a3519':
  rawdec: Replace avpicture functions with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fcc1280a':
  rawenc: Replace avpicture functions with imgutils
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '3496cec4':
  msrle: Use AVFrame instead of AVPicture
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'ac981d16':
  APIchanges: Fill in missing dates and hashes
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

How this passed through the commit hook?
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

This enables the qsv transcoder to actually get activated

* commit 'fb472e1a':
  avconv: add support for Intel QSV-accelerated transcoding
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'dc923bc2':
  qsvenc: add an API for allocating opaque surfaces
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '2ec96b6b':
  qsvenc: cosmetics, reindent
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'f6f32fc9':
  qsvenc: set the timestamp for PIX_FMT_QSV frames as well
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '772c87c5':
  qsvenc: support passing arbitrary external buffers to the encoder
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Signed-off-by: Peter Ross <pross@xvid.org>

http://wiki.multimedia.cx/index.php?title=Electronic_Arts_SCxlReviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Such files have gaps between header chunks.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Register mmaldec as mpeg2 decoder. Supporting mpeg2 in mmaldec is just a
matter of setting the correct MMAL_ENCODING on the input port. To ease the
addition of further supported mmal codecs a macro is introduced to generate
the decoder and decoder class structs.
Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: wm4 <nfxjfg@googlemail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>