This is a temporary workaround to allow deprecating
avcodec_get_frame_defaults(). The proper solution will be using a
properly allocated AVFrame in Picture.

ff_mpeg_unref_picture() already resets the frame.

avcodec_decode_audio4() will reset the frame itself.

avcodec_get_frame_defaults() will be deprecated.

Strictly speaking it is not correct to call it on refcounted frames, in
any case it is unnecessary, since filtered_frame is always unreferenced
after poll_filter() returns.

av_frame_free() should be used instead.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes CID1135750

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

This enables a more POSIX-compliant printf implementation, that
allows using length modifiers like 'z'.

Fixes CID1135763, CID1135764

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

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

Fixes CID1135762

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

Fixes CID1135748
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1135769

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

Fixes CID1135776

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

Fixes CID1135744
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Based on eeb975f5
Fixes ticket #3217.

Reviewed-by: Nicolas George

based on code from oggparsevorbis
Fixes Ticket3124
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  alsdec: check block length

See: 0ceca269b6
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1135742

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

Fixes CID1135767
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is currently redundant as the checks before it are tighter than
the checks in ff_set_dimensions() but its more robust not to depend
on that.

Fixes CID1135740
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes mixed flushing and decoding NULL packets
Found-by: wm4

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

Fixes hypothetical integer overflows
Related to CID1135770 & CID1135771

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

This is currently redundant as the checks before it are tighter than
the checks in ff_set_dimensions() but its more robust not to depend
on that.

Fixes CID1135739
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1135765
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

- Try reading the time_base information from the VPS too, not just the VUI
- Only set time_base when an SPS is activated, not when it's decoded.
- Reduce the fraction before setting it.
- Don't set anything if the fraction is invalid (because the VUI is not
  present or because the encoded value is invalid).

Conflicts:
	libavcodec/hevc_ps.c

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

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

significantly improves compression rate

This also bumps version to 2 and drops support for version 0/1
If someone used version 0/1 despite their experimental status then support
for these can and should be added back

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>

Fix writing over the end

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Addresses: CVE-2013-0845

* qatar/master:
  configure: Move log2 dependency declaration to a place it takes effect

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

It was incorrectly moved in c869fcdeac.

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

0-0.7% improved compression

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

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

* qatar/master:
  configure: Split host and target libc detection

Conflicts:
	configure

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

* commit 'c869fcdeac3b7cd71a852b928902daadeca55685':
  configure: Move toolchain dependency declarations to a more appropriate place

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

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

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

AVFrames cannot be copied literally, their definition is in
avutil and their extended_data can point to their data[]

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

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