Removes unneeded variables, renames confusing and innacurate variables
and rewrites and slightly optimizes hadamard interleave/deinterleave
functions.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

This patch aims to reduce the number of input/output surfaces
NVENC allocates per session. Previous default sets allocated surfaces to 32
(unless there is user specified param or lookahead involved). Having large
number of surfaces consumes extra video memory (esp for higher resolution
encoding). The patch changes the surfaces calculation for default, B-frames,
lookahead scenario respectively.

The other change involves surface selection. Previously, if a session
allocates x surfaces, only x-1 surfaces are used (due to combination
of output delay and lock toggle logic). To prevent unused surfaces,
changing surface rotation to using predefined fifo.
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

Regression since 76cc100a.
Spotted-by: James Almer <jamrial@gmail.com>

* commit 'd4a91e65':
  pthread_frame: do not run hwaccel decoding asynchronously unless it's safe

This commit is a noop, see e0cd598bMerged-by: Clément Bœsch <u@pkh.me>

* commit '8dfba25c':
  pthread_frame: ensure the threads don't run simultaneously with hwaccel

This commit is a noop, see 14bb15bfMerged-by: Clément Bœsch <u@pkh.me>

* commit '373fd76b':
  hevcdec: do not set decoder-global SPS prematurely
Merged-by: Clément Bœsch <u@pkh.me>

* commit '0fea8555':
  v4l2: use codec descriptors for mapping a codec name to id
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'ee480790':
  build: Add name parameter to check_lib() helper function
Merged-by: Clément Bœsch <u@pkh.me>

* commit '1faffe7e':
  configure: Disentangle vfw32 and user32 lib handling
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'f7174d7e':
  configure: fix linking with MSVC when using --disable-optimizations
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'ef9a711b':
  configure: put d3d11 check in alphabetical order
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'a4fec9a7':
  rtmppkt: Check for packet size mismatches

See 7d57ca4dMerged-by: Clément Bœsch <u@pkh.me>

* commit 'cdcfa97d':
  libavformat: Fix a faulty api deprecation guard in prepare_input_packet
Merged-by: Clément Bœsch <u@pkh.me>

* commit '2425d732':
  arm64: replace 'bic' with immediate with 'and' with inverted immediate
Merged-by: Clément Bœsch <u@pkh.me>

* commit '05a603a9':
  ppc: Merge types_altivec.h into util_altivec.h
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'ea7ee4b4':
  ppc: Centralize compiler-specific altivec.h #include handling in one place
Merged-by: Clément Bœsch <u@pkh.me>

* commit '39929e55':
  ppc: hevcdsp: Use shorthands for vector types
Merged-by: Clément Bœsch <u@pkh.me>

* commit '554e55bb':
  decode.h: Add missing headers to fix standalone compilation
Merged-by: Clément Bœsch <u@pkh.me>

* commit '343e2833':
  pthread_frame: use better memory orders for frame progress

This commit is a noop, see c358c625Merged-by: Clément Bœsch <u@pkh.me>

* commit 'e94b9313':
  fate: Add h264 test for frame num gaps

This commit is a noop, see b7e4ea0cMerged-by: Clément Bœsch <u@pkh.me>

* commit '5c7f2cf8':
  h264_slice: Wait for refs to be available before we use them in error concealment

This commit is a noop, see 4413e950Merged-by: Clément Bœsch <u@pkh.me>

* commit '86157e6d':
  hevc: decouple calling get_format() from exporting the SPS parameters

See 786032ca (which has been reverted
and replaced with Anton's version to reduce diffs between the two
projects).
Merged-by: Clément Bœsch <u@pkh.me>

The start code can be either in the first three or four bytes.

* commit '730c0232':
  binkaudio: switch to the new send/receive API
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'fa1749dd':
  vp9: split superframes in the filtering stage before actual decoding

This commit is a noop.

2017-04-24 20:45:04     @ubitux BBB: btw, do you think you can get the bsf thing this week or we should skip it to give you more time and go on with the merges?
2017-04-24 20:45:20     @BBB    I’m not sure I’ll finish it that soon
2017-04-24 20:45:26     @BBB    I’d skip it and leave it for later
2017-04-24 20:45:35     @BBB    I’ll do it, I promise, but I Can’t guarantee it’ll be done by $date
Merged-by: Clément Bœsch <u@pkh.me>

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

rgb_scanline_pxr24_half_uint32_13x9.exr doesn't have alpha
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The header is not always available in the docker build environment

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

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

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

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

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

I tried doing this before, but it resulted in weird behaviour with
certain samples. I want to say I think I've got it sorted out now,
and the new autobsf stuff makes it trivial to turn on.

The native support for packed bframes is buggy and I think buggy
in ways beyond what I already try to account for, so this should be
a net improvements.

Previously, the pts value was initialised to AV_NOPTS_VALUE and so
it was not necessary to always set it. Now, with the new-new decode
API, this is no longer true. I'm not sure why I avoided setting the
pts when the decoder value was also AV_NOPTS_VALUE - it clearly
wouldn't have changed anything previously, but here we are.

Failing to do this, means the frame pts will be some random uninitalised
value.

libavcodec/decode.c:608:9: warning: variable 'ret' is
      used uninitialized whenever 'if' condition is false

(cherry picked from libav commit efddf2c0)

The existing code will segfault if a closing tag shows up when there
was never an opening tag. This isn't a well formed style, but it's also
not a reason to crash.

Fixes: https://trac.ffmpeg.org/ticket/6303

The WebM DASH spec states:
    The Initialization Segment shall not contain Clusters or Cues.
    The Segment Index corresponds to the Cues.

Previously, it included the cues if they were at the front.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Output was apparently not tested for correctness. Passing overlapping
memory to snprintf causes undefined behavior, and usually resulted in
only the very last timestamp being written to metadata, and not a list
at all.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This lets us drop all the code for handling the mp4toannexb
conversion.

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