This avoids some unneeded computations
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

I think there's an off-by-one in terms of the switchpoint where we
switch from dst_incr to ideal_dst_incr, I don't think that's a massive
issue, but just be aware of that. It's probably trivial to prevent but
I don't care.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

I could not reproduce any off by 1 error, results are bit exact (michael)

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

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

Fixes the test on big endian
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

The macro was not using the parameter but unconditionally using sse4.
Signed-off-by: Michael 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: Martin Storsjö <martin@martin.st>

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

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

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

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

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

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

Suggested-by: carl
Signed-off-by: Michael 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: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Conflicts:
	libavcodec/ivi_common.c

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

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

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

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

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

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

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

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

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

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

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

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

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