The spec says:
"Mandatory elements with a default value may be left out of the file. In the absence
of a mandatory element, the element's default value is used."
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Suggested-by: ronald
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes ticket #5872.

Fixes ticket #4009.

Fixes decoding of the output file from ticket #4009.

The option d10_channelcount only exists for mxf_d10.

Attachment tags were being written targeting non-existent streams in the
output file.
Also filter filename and mimetype entries, as they are standard elements
in the Attachment master.
Signed-off-by: James Almer <jamrial@gmail.com>

The parser for the outdef will accept a negative value for the first
named channel's gain. As negative values effectively only invert the
phase of the signal, and not negate the level, the gains' absolute
values must be used to correctly accumulate the levels.
Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The optimizations of mipsdsp are not supported by all loongson cpu.
The optimizations of mipsfpu and mipsdspr2 maybe supported by 3A2000/3A3000/3A4000 but not tested yet.
Loongson only support mmi (loongSIMD) optimizations now.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The slice index expected by D3D11VA is the one from the texture not from the
array or texture/slices.

In VLC the slices we provide the decoder don't start from 0 and thus pictures
appear in bogus order. With possible crashes and corruptions when using an
invalid index.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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

Using the stream timebase simply overflows
Fix integer overflow in psp framerate computation
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes assertion failure

Fixes: input.avi
Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

doc/examples/http_multiclient: Fix "doc/examples/http_multiclient.c:43:9: warning: passing argument 4 of av_opt_get from incompatible pointer type"
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '398f015f':
  avconv: buffer the packets written while the muxer is not initialized
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

avformat/matroskaenc: fix Tags master on seekable output if there are tags after the last stream duration

The dynamic AVIOContext would get closed pointing to the wrong position
in the buffer.
This is a regression since 650e17d8.
Reviewed-by: Dave Rice <dave@dericed.com>
Signed-off-by: James Almer <jamrial@gmail.com>

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

Recent changes to ffmpeg.c tied output file init to stream init, which broke
stream-less files, specifically ffmetadata output.

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

* commit '1c169782':
  avconv: explicitly postpone writing the header until all streams are initialized
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5b63b156':
  lavfi: set the link hwframes context before configuring the dst input
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '0c9c4004':
  omx: Don't return > 0 from omx_encode_frame
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '31aa5335':
  libopenh264enc: Fix inconsistent whitespace
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '4f98bb7b':
  msmpeg4: Remove commented-out debug logging code
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'eedbeb4c':
  msmpeg4: Remove some broken, commented-out cruft
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '3c84eaae':
  h264: Eliminate unused but set variable

Noop, the variable doesn't exist in our code.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '4dbfcd07':
  librtmp: Avoid an infiniloop setting connection arguments
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fe498ef5':
  hwcontext_vaapi: Return all formats for constraints without config
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '11b80303':
  vaapi_encode: Fix fallback when input does not match any format
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>