avcodec/utils: check that extended data has been set correctly instead of forcing it in avcodec_decode_video2()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

AVFrames cannot be copied literally, their definition is in
avutil and their extended_data can point to their data[]
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes ticket #3211.

* qatar/master:
  hevc: parse frame packing arrangement SEI messages and save relevant stereo3d information

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

* commit '3d1d1753':
  mpeg12enc: set frame packing information when relevant metadata is found

Conflicts:
	libavcodec/mpeg12enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'bacc2869':
  mpeg12dec: parse frame packing arrangement user_data and save relevant stereo3d information
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '09cb75cd':
  libx264: set frame packing information when relevant information is found

Conflicts:
	libavcodec/libx264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5b10ef72':
  h264: parse frame packing arrangement SEI messages and save relevant stereo3d information

Conflicts:
	libavcodec/h264.c
	libavcodec/h264_sei.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '7e244c68':
  avframe: add codec-independent stereoscopic metadata

Conflicts:
	Changelog
	libavutil/Makefile
	libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Wei Gao <highgod0401@gmail.com>
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd64341e4':
  configure: Prefix libc-related variables with "libc_"

Conflicts:
	libavdevice/Makefile
	libavformat/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* cehoyos/master:
  Fix remuxing of IMA_QT in mov.
  Do not detect "00000000..." (and other non-changing values) as adp.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '61b203ff':
  configure: detect Solaris libc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9b8d11a7':
  avcodec: Use av_reallocp where suitable

Conflicts:
	libavcodec/bitstream.c
	libavcodec/eatgv.c
	libavcodec/flashsv.c
	libavcodec/libtheoraenc.c
	libavcodec/libvpxenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd4f1188d':
  dv: use AVFrame API properly

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

* commit 'c9ca220e':
  ac3dec: make drc_scale exponentially
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '37a74901':
  lavc: rework handling of refcounted_frames=0

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

* commit 'df7aba52':
  frame: cosmetics, reindent

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

* commit 'c342132f':
  frame: copy flags in av_frame_copy_props()

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

* commit 'a1ee1648':
  lavc/decode_video(): always unref the frame if there is no output in decode_video

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

* commit '85f947ae':
  lavc: remove a pointless check in decode_audio4()
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd4f0f2d1':
  lavc: use buf[0] instead of data[0] as the indicator of an allocated frame

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

* commit 'e5419709':
  lavc: remove the extended_data workarounds.

Conflicts:
	libavcodec/utils.c

One hunk is not merged as not all codecs are updated yet
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #1603.

* commit 'd351ef47':
  pthread_frame: use the AVFrame API properly.

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

Muxing VP6 is used by applications and works with Flashplayer.

Reported-by: David Bertrand

* commit 'b605b123':
  mxpegdec: use the AVFrame API properly.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'afa21a12':
  p*menc: use the AVFrame API properly.

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

* commit 'e2274aa5':
  mjpegdec: use the AVFrame API properly.

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

Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit e0e3b8b2)

Conflicts:

	libavcodec/jpeglsdec.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f0b234ab':
  avformat: AviSynth demuxer rewrite

Conflicts:
	configure
	libavformat/avisynth.c

See: b9ad0094 (as well as later commits)
Merged-by: Michael Niedermayer <michaelni@gmx.at>