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>

* commit 'a84616b7':
  mpegvideo: K&R formatting cosmetics

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

* commit '93f30547':
  lavc: Convert some remaining strides to ptrdiff_t

Conflicts:
	libavcodec/h264.h
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/vp56.c
	libavcodec/wmv2.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4baba6c8':
  h264_parser: Fix POC parsing for the case where MMCO_RESET is present.

Conflicts:
	libavcodec/h264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b81dbd6c':
  h264_parser: Fix POC parsing for the case where MMCO_RESET is absent.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6b081eff':
  fate: add vorbiscomment cover art test

Conflicts:
	tests/fate/cover-art.mak

See: 1ca39027Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '68edd5be':
  FATE: use proper comparison mode in the lavr tests
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'dd33637c':
  tiny_psnr: switch f32 handling to floating point

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

* commit '29c455ce':
  bitstream: Check the result of av_malloc()

Conflicts:
	libavcodec/bitstream.c

See: aa74810fMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3b4fa548':
  cavs: more K&R formatting cosmetics
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c0085f94':
  mpegaudio_tablegen: Don't use llrint
  cos_tablegen: Don't use lrint
  tablegen: Don't use cbrtf in host tools
  tableprint: Fix use of a size_t print with MSVC

Conflicts:
	libavcodec/cbrt_tablegen.h
	libavcodec/mpegaudio_tablegen.h

See: e5169211
See: 50867209
See: 008014b5
See: 00aa24ffMerged-by: Michael Niedermayer <michaelni@gmx.at>

hevc: fixing TSCL_A_VIDYO_5 decoding output order(cherry picked from commit 19c5d9ed28606e7a166d180fc9f1517cb174146f)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The tests are disabled as 2 do not pass yet
(fate-hevc-conformance-PPS_A_qualcomm_7 and fate-hevc-conformance-RAP_A_docomo_4)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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