Fixes Ticket #1822.

* qatar/master:
  hwaccel: Simplify ff_find_hwaccel

Conflicts:
	libavcodec/mpeg12dec.c
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes probetest failure
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

It is always called by passing fields from an AVCodecContext.

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

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

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

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

Fixes probetest failure
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NTimothy Gu <timothygu99@gmail.com>
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>

See: libavcodec/webp.c
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

The headers and footers are used to integrate Doxygen into Libav's website.
Fixes the Libav-ish look when doing `make apidoc`.
Signed-off-by: NTimothy Gu <timothygu99@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes probetest failure
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

Fixes a particular youtube video that I unfortunately can't share.

Formatted in such a way that DivX certified players can decode it.
Verified on Sony Playstation 3 and Philips DVP3380.

Fixes ticket 2385
Signed-off-by: NErik Olofsson <eaj.olofsson@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

In particular, distinguish if the option was -filter or -filter_script.

Suggested-by: Nicolas George

Avoid the need for multiple potentially inconsistent access operations,
slightly factorize code.

This reduces the amount of data needed to identify dv
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

40% faster probe
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

a758c5e2 added probing for various tools, such as AS. Unfortunately, GNU
AS is reading stdin with -v, and thus configure is stalled with
configure arguments such as --as=as.

Fixes Ticket #1898.

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

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

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

about 3 times faster
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* qatar/master:
  avienc: drop the vfr flag.
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

It can be debated if avi is vfr or cfr, it can be either depending
on the definition of vfr and cfr.
This commit ensures that avi is treated correctly independent of
the AVFMT_VARIABLE_FPS value.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '5462dde1':
  metasound: Fix error message argument
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

about 71 times faster
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

AVI does not really support vfr properly, only by padding with null
packets.

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

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

The ico probe function is pretty weak just checking a few bytes for being 0, 1 or not 0

Fixes probetest failure
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* qatar/master:
  h263dsp: K&R formatting cosmetics
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '0338c396':
  dsputil: Split off H.263 bits into their own H263DSPContext

Conflicts:
	configure
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
Merged-by: NMichael Niedermayer <michaelni@gmx.at>