This only checks that things havnt changed, the values provide little
help in determining if a change is good or bad.

Improvements welcome!
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

This removes a branch at a performance-sensitive point (in the middle
of the loop). In fate-swr-resample-s32p-8000-2626, this makes the code
about 10% faster. It also simplifies the loops, allowing us to rewrite
it in yasm at some later point.

The compensation_distance != 0 code and index < 0 code are still kind
of hairy. For compensation_distance != 0, this should likely be handled
in the caller, so that it calls swri_resample twice (once until the
dst_incr switch-point, and once with the remainder of the samples). For
index < 0, the code should probably be rewritten to break out of the
loop once sample_index >= 0, and then resume (e.g. as a tail-call) to
the common or linear resampling loops.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '59cb5747':
  rtmpproto: read metadata to set correct FLV header
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '3b18857a':
  rtmppkt: Add method to read an AMF string that is not prefixed by its type
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'a1859032':
  flvdec: Do not default to a video and audio stream
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

The immediate value may be 0.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

The macro was not using the parameter but unconditionally using sse4.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

In the presence of no metadata, do not set any stream flag in the FLV
header but let the demuxer handle the detection and creation of streams
as data arrives.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Signed-off-by: NMartin Storsjö <martin@martin.st>

If no streams were indicated in the FLV header, do not automatically
allocate by default a video and an audio stream. Instead, in the case
that the header did not indicate the presence of any data, allocate no
stream until data actually arrives for one type.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

If people want, this could be exported as av_opt_size()

Found-by: carl
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This should make it simpler for users to test if such videos work

Suggested-by: carl
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

It is obviously nonsense since it produces wrong results
or even crashes (crashes should be encode-only though).
Fixes trac issue #1092.
Signed-off-by: NReimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This is the same as 5a15602a, which
accidentally did not get merged.
Signed-off-by: NTimothy Gu <timothygu99@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NTimothy Gu <timothygu99@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'f76e3669':
  Decode both parts of Indeo4 IP frames

Conflicts:
	libavcodec/ivi_common.c
	libavcodec/ivi_common.h

See: 8bfb4d72Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '3df0d200':
  Move Indeo4 frametypes into common header.

Conflicts:
	libavcodec/ivi_common.c

See: d24673a2Merged-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

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

* commit '38313626':
  avconv: do not use the stream codec context for encoding

Conflicts:
	ffmpeg.c
	ffmpeg_opt.c
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

The demuxer needs this value to generate correct timestamps in some corner cases
Ideally the parser would always set this correctly, but some parsers lac support
for extracting this value, also its not trivial.
This fixes a regression
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '41776ba9':
  avconv: do not use the stream codec context for decoding

Conflicts:
	ffmpeg.c
	ffmpeg_filter.c
	ffmpeg_opt.c
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'e19d48df':
  flac muxer: support reading updated extradata from side data

Conflicts:
	libavformat/flacenc.c
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '0097cbea':
  flac muxer: accept only STREAMINFO extradata
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'ed39cda0':
  flacenc: send final extradata in packet side data
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '0957b274':
  lavc: add an option to enable side data-only packets during encoding

Conflicts:
	libavcodec/avcodec.h
	libavcodec/options_table.h
	libavcodec/version.h
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'eb800f12':
  libavcodec: set AVFrame colorspace fields on decoding

Conflicts:
	libavcodec/utils.c

See: a80e6229Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* commit '8c02adc6':
  lavu: add all color-related enums to AVFrame

Conflicts:
	libavcodec/avcodec.h
	libavutil/frame.c
	libavutil/frame.h
	libavutil/version.h

The version check is changed so they are available with the current ABI
FFmpeg libs should have no problems with added fields, nor should any
application using the libs, and we regularly added fields in the past.
We also moved 2 of these fields to AVFrame already previously without issues.

See: a80e6229Merged-by: NMichael Niedermayer <michaelni@gmx.at>

Suggested-by: kurosu
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

* commit 'd2ef708c':
  matroskaenc: Allow VP9 and Opus in webm

Conflicts:
	libavformat/matroskaenc.c

See: 820ffaedMerged-by: NMichael Niedermayer <michaelni@gmx.at>