In particular, this reads chained seekheads. This makes seeking faster
in files which have the index indirectly linked through 2 seekheads.

As a side-effect, this warns when reading level-1 (toplevel) elements
multiple times (other than seekheads, clusters, and void/crc). Such
elements are not valid and likely break everything.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Put filenames and configuration options in code for clarity, and fix some list formatting.
Reviewed-by: Timothy Gu <timothygu99@gmail.com>
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>

Since commit 934f2d2f,
cmdutils_read_file() prints a confusing message on success:

IO error: Success

This is because the error message is printed on the success path as
well. Add the missing condition so that it is only printed on error.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

i7-4770K luma 21% faster, chroma 18% faster A10-7850K luma 42% faster, chroma 37% faster on 1920x1080 res
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes bug #4303.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

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

Fixes out of array accesses
Fixes: ffmpeg_mjpeg_crash.avi
Found-by: Thomas Lindroth <thomas.lindroth@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9deaec78':
  lavf: move internal fields from public to internal context

Conflicts:
	libavformat/avformat.h
	libavformat/internal.h
	libavformat/mux.c
	libavformat/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1509c018':
  mpegts: relax restrictions on matching the packet start in read_header

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

* commit '6a5b8ca4':
  lavf: remove unused code

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

* commit '0232ba62':
  frame: clarify buf documentation
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* cus/stable:
  ffplay: factorize thread starting and stopping code into decoder
  ffplay: make eof part of videostate and signal it when opening a stream
  ffplay: update frame timer based on last updated clock time when toggling pause
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket4267
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

We already have a dependency on awk and bc is sometimes not found in the
base system.

This is not an API change; the fields were explicitly declared private
before.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

analyze() is currently called both when probing and from read_header().
It determines the packet start by looking for the sync byte, followed by
unset Transport Error Indicator and valid adaptation_field_control.

This makes sense to do when probing, but once we already know the format
is MPEG-TS, it is counterproductive to be so strict -- e.g. in some
files the TEI might be set and analyze() might get called with a smaller
buffer than the one used for probing, resulting in a failure.

Signed-off-by: Marton Balint <cus@passwd.hu>

Otherwise we may not flush a decoder when a new stream is opened during an
already eof condition.
Signed-off-by: Marton Balint <cus@passwd.hu>

It is better than using simply video clock, because video clock may be NAN.
Signed-off-by: Marton Balint <cus@passwd.hu>

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

lavu       CAMELLIA     size: 1048576  runs:   1024  time:   21.549 +- 0.17
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Avid prefers mpeg range [16-235] by default this change brings
ffmpeg into line with that. To obtain the old behaviour use
'-color_range jpeg' on the command line prior to the ouput
filename.
Signed-off-by: Kevin Wheatley <kevin.j.wheatley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also make clear that PAL8 can have alpha.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Doing this check in avutil_version() is not appropriate. Also, this code
is by default disabled (--assert-level is by default 0). A FATE run with
defaults will never execute the checks.

Move it to the pixelutils test program. Whatever reason there was in
avutil_version() not to run this test by default, it should be fine in
this test program. This means FATE will run the test by default. (Yes,
pixelutils is not strictly the best place for it either, but it's
better.)

(pixdesc.c also has a small test program, but it's never run by FATE.)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

Reviewed-by: tomas.hardin@codemill.se
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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