* commit '0fa00d05':
  lavf: move avio_enum_protocols() to protocols.c
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This commit also disables the async fate test, because it
used internal APIs in a non-kosher way, which no longer
exists.

* commit '2758cded':
  lavf: reorganize URLProtocols
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '225e84e7':
  hls: disallow opening nested files in child demuxers
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'e192cd9c':
  smoothstreamingenc: do not open the files as read+write
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'd082078a':
  dashenc: eliminate ffurl_* usage
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '7fbb3b5b':
  lavf: use the io_open callbacks for files opened from open_input() as well
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This commit is no-op. The affected piece of code does not
exist in FFmpeg.

* commit '5efd9128':
  avprobe: do not call avio_close() on a custom context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

FATE tests have been updated to patch. They do not differ in
any meaningful way.

* commit 'dc6527ed':
  nutenc: do not use AVCodecContext.frame_size
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Improves jpeg auto-detection.

This option is typically useful when cross-compiling dynamic libraries
for iOS, with something such as --install-name-dir=@rpath

optimize draw_bar_yuv (slightly faster)
optimize draw_axis (about 2x faster)
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

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

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

Fixes regression with ticket2451
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

reference test sample is tiny
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The reference file is very small, and there was no previous test for the -vsync values
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>

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

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

This also fixes reading gapless metadata when the entries do not start with the
mean atom. Such samples can be found here:
https://hydrogenaud.io/index.php/topic,93310.0.htmlReviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

Use avpriv_io_move instead of ff_rename to support more than only
the file protocol.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

it only requires the rename function from os_support.h.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This commit redistributes the leftover bytes amongst the top 150 slices
in terms of size (in the hopes that they'll be the ones pretty bitrate
starved).

A more perceptual method would probably need to cut bits off from slices
which don't need much, but that'll be implemented later.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Previously used the luma size only.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

The encoder crashed on verly low bitrates since there wasn't enough
space allocated.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

The encoder crashed on verly low bitrates since there wasn't enough
space allocated.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Previously a global average was used. Using the previous quantizer
resulted in a fairly significant speedup as slice size selection settled
down quicker.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

16 bits were definitely not enough and caused artifacts to appear on
images at barely compressed images.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Needed for following commits, also a speed increase.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

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

Fixes: ebd58db6-dc86-11e5-91c2-59daeddf50c7.jpg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The changes in "Incompatible libraries" section are strictly based on
what our configure script says.

 4.5x faster than C float version with autovectorization
10  x faster than C int version
25  x faster than C float version without autovectorization