Fixes ticket #1973.

FourCC aivx refers to (Sony) XAVC, not (Panasonic) AVC-Intra.
Spotted by Kieran Kunhya and Vincent Olivier.

fixes ticket #1955 as suggested by Roman.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes part of Ticket1955
suggested by Roman.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  fate: Increase the tolerance in the lavr tests
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f52fd3f3':
  fate: aac: Add test for AAC-LD
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Improve interface flexibility. In particular makes it possible to set
channel layout through symbolic names using the av_opt_set() interface.

A few fate instances on OS/2, OpenBSD, FreeBSD and IA64 linux currently
still fail a few tests with a maxdiff of 6.
Signed-off-by: Martin Storsjö <martin@martin.st>

The new type is compatible with AV_OPT_TYPE_INT64, but allows to specify
channel layouts using the format accepted by av_get_channel_layout().

The new syntax is preferred since it allows backward syntax compatibility
with libswr when switching to the new option handling code with
AV_OPT_TYPE_CHANNEL_LAYOUT.

With the new parser the string:
1234

is interpreted as a channel layout mask, rather than as a number of
channels, and thus it's compatible with the current way to set a channel
layout as an integer (e.g. for the icl and ocl options) making use of
integer option values.

ff_get_channel_layout() with compat=0 will be used in the
AV_OPT_TYPE_CHANNEL handler code.

The user is encouraged to switch to the new forward compatible syntax,
which requires to put a trailing "c" when specifying a layout as a number
of channels.

In particular, do not set default string value by hand and use
av_opt_free() to free context.

Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* cehoyos/master:
  Add some necessary casts in the wtv demuxer.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This fixes fate-hevc-conformance-RAP_A_docomo_4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reduces the difference to the latest hevc demuxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts e8023dba, fixes ticket #3049.

* qatar/master:
  mem: Make av_strdup allocate using av_realloc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

hevc: fix pcm with different chroma luma bit widths(cherry picked from commit 6a444516f338424d062c0ef2806714036283603b)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Found-by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Not sure this is the correct solution but that can be investigated too once
the docs build again

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Extend description and clarify syntax.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

This makes sure that pointers from av_strdup are reallocable,
which is used in av_dict_set if the AV_DICT_APPEND flag is set.

Nothing should rely on pointers from av_strdup being aligned.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

* qatar/master:
  mpegvideo: Move 8x8 in a separate function

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

* commit '95587859':
  mpegvideo: Move obmc in a separate function

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

* commit 'a90905db':
  ffv1: Assume bitdepth 0 means 8bit

Conflicts:
	libavcodec/ffv1dec.c

Note, FFmpeg is not affected by this bug
Merged-by: Michael Niedermayer <michaelni@gmx.at>