avformat/avidec: match first index and first packet size=0 handling

Fixes Ticket2861

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 227a0eb5a92409572f2cecde6137529b83e7d495)

Conflicts:
	libavformat/avidec.c
rtmp: fix multiple broken overflow checks

Sanity checks like `data + size >= data_end || data + size < data' are
broken, because `data + size < data' assumes pointer overflow, which is
undefined behavior in C.  Many compilers such as gcc/clang optimize such
checks away.

Use `size < 0 || size >= data_end - data' instead.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 902cfe2f74d777a7dc20ac68f2393b9f84b790c1)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
rtmp: fix buffer overflows in ff_amf_tag_contents()

A negative `size' will bypass FFMIN().  In the subsequent memcpy() call,
`size' will be considered as a large positive value, leading to a buffer
overflow.

Change the type of `size' to unsigned int to avoid buffer overflow, and
simplify overflow checks accordingly.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4e692374f7962ea358c329de38c380103f8991b6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
huffyuvdec: Check init_vlc() return codes.

Prevents out of array writes

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f67a0d115254461649470452058fa3c28c0df294)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 95ab8d33e1a680f30a5a9605175112008ab81afc)

Conflicts:

	libavcodec/huffyuv.c
(cherry picked from commit 277def59fce10d91e3113e5c0f63e22bc4abfa88)

Conflicts:

	libavcodec/huffyuv.c
huffyuvdec: Skip len==0 cases

Fixes vlc decoding for hypothetical files that would contain such cases.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0dfc01c2bbf4b71bb56201bc4a393321e15d1b31)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5ff41ffeb4cb9ea6df49757dc859619dc3d3ab4f)

Conflicts:

	libavcodec/huffyuv.c
(cherry picked from commit 9bc70fe1ae50fd2faa0b9429d47cfbda01a92ebc)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
configure: Make warnings from -Wreturn-type fatal errors

These warnings have no false positives and point to serious bugs.
(cherry picked from commit 99853cb8d4237b810b2fffb4a34f66fd0064ef72)

Conflicts:

	configure

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
apichanges: fix 2 wrong hashes

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2f3bc5122822687dc388f7352c92cf6db456cf7c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doc/APIchanges: List merge commit hashes and version numbers

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
rmdec: flush audio packet on seeking

Fixes Ticket1605

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 519ebb5ee5b89b8ecc80b4a4540fcbeb65cda172)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
update all trac links to use the trac subdomain

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/flashsv: check diff_start/height

Fixes out of array accesses
Fixes Ticket2844

Found-by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 880c73cd76109697447fbfbaa8e5ee5683309446)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/rpza: Perform pointer advance and checks before using the pointers

Fixes out of array accesses
Fixes Ticket2850

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3819db745da2ac7fb3faacb116788c32f4753f34)

Conflicts:

	libavcodec/rpza.c
jpeg2000: check log2_cblk dimensions

Fixes out of array access
Fixes Ticket2895

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9a271a9368eaabf99e6c2046103acb33957e63b7)

Conflicts:

	libavcodec/jpeg2000dec.c

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

Conflicts:

	libavcodec/j2kdec.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
matroska_read_seek: Fix used streams for subtitle index compensation

Might fix Ticket1907 (I have no testcase so i cant test)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4758e32a6c48044f77102a49110c79b4f338f648)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/pngdsp: fix (un)signed type in end comparission

Fixes out of array accesses
Fixes Ticket2919

Found_by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 86736f59d6a527d8bc807d09b93f971c0fe0bb07)

Conflicts:

	libavcodec/pngdsp.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/dsputil: fix signedness in sizeof() comparissions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 454a11a1c9c686c78aa97954306fb63453299760)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/ffv1enc: update buffer check for 16bps

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3728603f1854b5c79d1a64dd3b41b80640ef1e7f)

Conflicts:

	libavcodec/ffv1enc.c
(cherry picked from commit c900c6e5c26cd86cf34f9c8d4347cedbd01f3935)
update for 0.9.3

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
cmdutils: update year to 2013

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