No need to recompute it for each new frame.

This improves the performances just enough to match mp=kerndeint.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Also update the documentation accordingly, and suggest a meaningful range.

Also drop pointless example.

In particular, avoid out-of-buffer access and crashes with too big
values, and rework documentation accordingly.

This tries to compensate for the errors introduced by
the rounding of pmulhw
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes FATE in MSVC DLL builds.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Correct the advancement of a pointer to skip over LFE samples as
intended in the loudness computation.

This suggested patch is 3 of 3 for Ticket #2144 "libavfilter ebur128
loudness inaccuracy, irregular time interval, LFE interference".
This suggested patch supersedes the contribution of January 15, 2013
in the thread “[PATCH] lavfi: EBU R.128 irreg time, ch weights, skip
LFE” which combined multiple fixes in one batch.

Correct the recognition of channel layouts for good channel weight
in the loudness computation.
This suggested patch is 2 of 3 for Ticket #2144 "libavfilter ebur128
loudness inaccuracy, irregular time interval, LFE interference".

Signed-off-by: David A. Sedacca <sedacca at comcast.net>

* qatar/master:
  sparc: dsputil: Simplify high_bit_depth checks
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '49fe2807':
  h264idct: Replace duplicate scan8 table by appropriate #include
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4db96649':
  avutil: Ensure that emms_c is always defined, even on non-x86
  configure: Move MinGW CPPFLAGS setting to libc section, where it belongs
  avutil: Move emms code to x86-specific header

Conflicts:
	configure
	libavutil/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The problem is reproducible with a relative prefix path.

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

Remove possibly pointless inconsistency with the ported code.

Also specify parameter value ranges consistent with those of the ported
filter.

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

Also cleanup exported symbols
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Removing accidentally added include file.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It is currently possible that such changes leak through from the decoder as
well as a filter could generate such changes itself.
This commit blocks such changed packets unless the encoder declares support.

Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Binary object unchanged.

Adding support for parsing AlphaMode element in the Track header
and export that information as a metadata tag. This flag indicates
presence of alpha channel data in BlockAdditional element.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

Other software does not store it in this case, and the information
is provided by the codec stream
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

A broken packet with invalid data in the middle of the stream
should not prevent from decoding the rest of the file.

Work around trac ticket #2264.

The QuickTime specification does not contain any hint that the atom
must not be written in some cases and both the QuickTime and the
AVID decoders do not fail if the atom is present.

This change allows to signal (visually) interlaced streams with
a codec different from uncompressed video.

As a side-effect, this fixes ticket #2202

It is supposed to be used with mencoder only and does
nothing when used with ffmpeg.
Signed-off-by: Paul B Mahol <onemda@gmail.com>