* commit '2dbe2aa2':
  rdt: Convert to the new bitstream reader
  ogg: Convert to the new bitstream reader
  mpegts: Convert to the new bitstream reader
  xsubdec: Convert to the new bitstream reader
  xan: Convert to the new bitstream reader
  wnv1: Convert to the new bitstream reader
  vima: Convert to the new bitstream reader
  vble: Convert to the new bitstream reader
  utvideodec: Convert to the new bitstream reader
  twinvq: Convert to the new bitstream reader
  tscc2: Convert to the new bitstream reader
  truespeech: Convert to the new bitstream reader
  tiertex: Convert to the new bitstream reader
  truemotion2: Convert to the new bitstream reader
  svq1dec: Convert to the new bitstream reader
  smacker: Convert to the new bitstream reader
  sipr: Convert to the new bitstream reader
  rtjpeg: Convert to the new bitstream reader
  ra288: Convert to the new bitstream reader
  ra144: Convert to the new bitstream reader

This merge is a noop, see
http://ffmpeg.org/pipermail/ffmpeg-devel/2017-April/209609.htmlMerged-by: James Almer <jamrial@gmail.com>

* commit '79566ec8':
  arm: vp9itxfm: Rename a macro parameter to fit better

This commit is a noop, see f69dd26dMerged-by: James Almer <jamrial@gmail.com>

* commit '721bc375':
  arm/aarch64: vp9itxfm: Fix indentation of macro arguments

This commit is a noop.
Merged-by: James Almer <jamrial@gmail.com>

* commit '06fec74c':
  checkasm: vp9dsp: benchmark all sub-IDCTs (but not WHT or ADST).

This commit is a noop, see 1c8fbd7bMerged-by: James Almer <jamrial@gmail.com>

* commit 'effc1430':
  Revert "checkasm: vp9dsp: Benchmark the dc-only version of idct_idct separately"
Merged-by: James Almer <jamrial@gmail.com>

* commit '12ab667e':
  matroska: use av_stream_add_side_data() for stereo3d side data
  mov: Use av_stream_add_side_data() for displaymatrix side data
  utils: Add av_stream_add_side_data()

This is a noop, see
2ab50647
77f033eb
2343f23eMerged-by: James Almer <jamrial@gmail.com>

* commit '286ab878':
  fate.sh: Allow setting other make flags for running tests
Merged-by: James Almer <jamrial@gmail.com>

* commit 'aa498c31':
  avpacket: fix leak on realloc in av_packet_add_side_data()

This commit is a noop, see 574929d8Merged-by: James Almer <jamrial@gmail.com>

* commit 'c7ab0eb3':
  examples/decode_video: allocate the packet dynamically
Merged-by: James Almer <jamrial@gmail.com>

* commit '728ea23c':
  examples/decode_video: switch to the new decoding API
Merged-by: James Almer <jamrial@gmail.com>

* commit 'f78d360b':
  examples/decode_video: use a parser for splitting the input
Merged-by: James Almer <jamrial@gmail.com>

* commit '59ab9e8b':
  examples/encode_video: allocate the packet dynamically
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit '5f102a95':
  examples/encode_video: switch to the new encoding API
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit 'fee0f1de':
  examples/decode_audio: flush the decoder
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit '9a38184a':
  examples/decode_audio: allocate the packet dynamically
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit '45a1ce2f':
  examples/decode_audio: handle planar audio now produced by the MP2 decoder

This commit is a noop, we use a simpler and more generic method to write
the samples.
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit '3d66717f':
  examples/decode_audio: use the new audio decoding API
Merged-by: Clément Bœsch <cboesch@gopro.com>

* commit '0946c754':
  examples/decode_audio: use a parser for splitting the input
Merged-by: Clément Bœsch <cboesch@gopro.com>

Not sure if it behaves ideally in presence of decoding errors.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes integer overflow
Fixes: 701640
Found-by: Found-by: Thomas Guilbert <tguilbert@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: James Almer <jamrial@gmail.com>

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

* commit 'f27e262d':
  examples/encode_audio: switch to the new audio encoding API
Merged-by: Clément Bœsch <u@pkh.me>

* commit '44c9f374':
  examples/qsvdec: convert to the new decoding API
Merged-by: Clément Bœsch <u@pkh.me>

* commit '1dd2b6c9':
  examples/qsvdec: switch to the hwcontext API
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'f92d7bdf':
  libopusdec: default to stereo for invalid number of channels

This commit is a noop, see 8c8f543bMerged-by: Clément Bœsch <u@pkh.me>

* commit 'b34c6cd5':
  dvbsub: cosmetics: Group all debug code together
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'b8cd7a3c':
  dvbsub: Check for errors from system()

printf(...) replaced with fprintf(stderr, ...) for logging errors.
Merged-by: Clément Bœsch <u@pkh.me>

* commit '6427379f':
  als: Restructure DEBUG ifdefs to avoid unused function parameter warnings
  ac3enc: Restructure DEBUG ifdefs to avoid unused function parameter warnings
  ape: Restructure DEBUG ifdefs to avoid unused function parameter warnings

These 3 commits are not merged.

These commits were actually controversial in Libav. A good rationale can
be found here:
https://lists.libav.org/pipermail/libav-devel/2016-November/080698.htmMerged-by: Clément Bœsch <u@pkh.me>

* commit 'bdbb8c68':
  doc: Add libxavs section
Merged-by: Clément Bœsch <u@pkh.me>