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
avformat/lxfdec: use a parser to parse video frame headers

lxf needs a parser (or would need to set a few fields explicitly).
Fixes Ticket2917

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8349be852be7f68fe0590584fd46c4d5f1c16b3d)
Avoid a deadlock when decoding wma.

Fixes ticket #2925.
(cherry picked from commit ec8a4841f7e81040f9a2757f23e70dff5e6b33a4)
w64dec: fix skipping of unknown guids

Regression since 14d50c1.
Fixes #2932.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
(cherry picked from commit 79b70e47a463057a3a48353ee1dd58671c11f86c)
w64dec: fix end position of summarylist guid

Noticed-by: James Almer

Signed-off-by: Paul B Mahol <onemda@gmail.com>
(cherry picked from commit 3e36dc8626f4721ea749286dae40169ee5cb7d04)
Read h264 headers from v4l2 to allow stream-copying.

Fixes ticket #2882.
Analyzed and tested by William C Bonner.
(cherry picked from commit e337c9d56408dc00a15887309488a1ff5cb06ba3)
vcr1: add sanity checks

Fixes invalid reads with corrupted files.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 8aba7968dd604aae91ee42cbce0be3dad7dceb30)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
pictordec: break out of both decoding loops when y drops below 0

Otherwise picmemset can get called with negative y, resulting in an
invalid write.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 5f7aecde02a95451e514c809f2794c1deba80695)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
avfilter/vf_fps: make sure the fifo is not empty before using it

Fixes Ticket2905

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cdd5df8189ff1537f7abe8defe971f80602cc2d2)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mjpegdec: Add some sanity checks to ljpeg_decode_rgb_scan()

These prevent the rgb ljpeg code from being run on parameters that it doesnt
support. No testcase available but it seems possible to trigger these.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 61c68000eda643dfce96dc46b488d39fd5c4e309)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '8dc4b2c92e492aa172327d10c926d5ca3a04371c' into release/1.1

* commit '8dc4b2c92e492aa172327d10c926d5ca3a04371c':
  pictordec: break out of both decoding loops when y drops below 0
  vcr1: add sanity checks

Conflicts:
	libavcodec/pictordec.c
	libavcodec/vcr1.c

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