At the moment, the moov header is written at the end of the file, so we
can use the current offset (which focus on the end of the mdat already
written) to guess if 64-bits offset will be required or not.

Though, the next commits will make possible the writing of this table at
the beginning, so this heuristic can't work. As a consequence, we check
all the values within the potential offset table for any value >
32-bits.

This function will be re-used in the following commits.

Normally we discard things prior to the intended start
for stream copy this is not always possible, and its not done by default
this option allows discarding to be enabled

this is primarely usefull when transcoding a video and stream copying an
audio stream.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

fixes a bug introduced with 4ed5ac50Signed-off-by: Jean First <jeanfirst@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>

Previously we had ignored the past dts and just filled in from the
point where we have had sufficient information.

This should fix Ticket1734
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

This reverts commit d25f87f5.

This breaks decoding of some h264 files
I have tested the original patch with fate but by mistake have
forgotten to specify the fate samples so testing was limited to
the internal regression tests.

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

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

Fixes Ticket1468
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This allows avoiding negative timestamps.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  xsub: feed init_get_bits the whole buffer
  libfdk-aac: Allow setting VBR modes via a private option
  libfdk-aac: Warn the user that the VBR modes are unsupported
  Revert "cbrt_tablegen: Include libm.h"

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

Discard unflexible structure based on the root/chapter/section layout in
favor of a generalized concept of section.

This should allow to represent sections at a generic level of nesting,
and allow subsection fields selection.

Also, simplify the code.

Possibly fixes Ticket1724
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

http://a/b + //c/d = http://c/d
http://a/b?c + ?d = http://a/b?d
http://a/b?c/d + /e = http://a/e

Updated with feedback from Clément Bœsch
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket1412
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Wrong version of the patch was pushed. MinGW32 supports vsnprint properly.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

All versions of MinGW-w64 prior to version 3, as well as
all versions of MinGW32 have broken implementations of
vsnprintf.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Fixes Ticket1714
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

This fixes the rest of Ticket1726
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This prevents race conditions
And partly fixes Ticket1726
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Do not use rlelen field for buffer size in init_get_bits, it is
only the size of the data for the first field.
Since it is not reliable, just use the size of the whole buffer.

Additional comments add removal of unused rlelen variable by
Reimar Döffinger.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes Ticket1227

This avoids using the global_quality field and QSCALE flag for
passing the VBR modes, since the value range of the global_quality
field doesn't really map cleanly to this codec's VBR modes.
Signed-off-by: Martin Storsjö <martin@martin.st>

These modes were not originally exposed by the library at all.
In practice, only a few of them work for each sample rate/profile
combination, and they don't work at all for the more uncommon
sample rates.
Signed-off-by: Martin Storsjö <martin@martin.st>

This code runs on the host and should not use libm.h, which is meant
for the target.

This reverts commit 2768b717.

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

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

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

cleaning it up is already done in avcodec_get_frame_defaults()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  pthread: make sure AVFrame.extended_data is set properly.
  libfdk-aac: reindent after last commit
  libfdk-aac: Limit to supported sample rates.
  cbrt_tablegen: Include libm.h
  oggparsetheora: make it more robust
  ogg: prevent NULL pointer deference in theora gptopts

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