Fixes regression from Ticket3962

This basically favors the first global header while since 34751f83
it was the last. If this heuristic turns out worse, do not hesitate to revert this and
reopen 3962 as a feature request for multiple STSD
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Fixes ticket 3959
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is similar to 7d97511eSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

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

it should not be possible to be larger as its stored as 8bit value
but we would be overwriting a stack buffer if it is ...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

for big enough pictures.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Enables >2GB memory usage for 32 bit compiles on Windows.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #3948
Based-on-patch-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '2a5ac99e':
  x11grab: Check the XQueryPointer return value

Conflicts:
	libavdevice/x11grab.c

See: 69c34a6aMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5b9c817d':
  x11grab: Check XFixesGetCursorImage return value

Conflicts:
	libavdevice/x11grab.c

See: a65c0a3f

The warning with adjusted text is kept from a65c0a3f
but drawing the cursor is not disabled in case XFixesGetCursorImage() fails
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '89fa2b56':
  x11grab: Check for XFixes availability at runtime

See: a65c0a3fMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '68211c70':
  vc1: Do not assume seek happens after decoding

See: 6801eb0aMerged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket3976
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The paint_mouse_pointer() code uses XFixes to retrieve the cursor
coordinates, but XFixes gives no information about which screen the
pointer is on; this results in always drawing the cursor on the
captured screen even if the mouse pointer was on another screen.

For example, when capturing from screen 1 (i.e. -f x11grab -i ":0.1")
the cursor was being drawn in the captured image even when the mouse
pointer was actually on screen 0, which is wrong and visually confusing.

CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

It could return NULL if the cursor is outside the screen, the connection
timed out or the system is out of memory.

CC: libav-stable@libav.org

If a seek is requested before the decoding start there is no
current picture.

CC: libav-stable@libav.org

Fixes out of array access
Fixes: asan_heap-oob_4da4f3_7_asan_heap-oob_4da4f3_173_Xmen_avc_500.vp6

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '36f3aec3':
  fate-vc1_ilaced_twomv: use -flags +bitexact

Conflicts:
	tests/ref/fate/vc1_ilaced_twomv

See: 233d1acbMerged-by: Michael Niedermayer <michaelni@gmx.at>

cherry picked from commit df8ebe304df453f26c28ff8f11d607f49b90a4c2

Fixes out of array access
Fixes: asan_stack-oob_1046454_9_asan_stack-oob_15a9e7c_170_WP_MAIN10_B_Toshiba_3.bit

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes accessing misaligned address
Fixes: signal_sigsegv_1feb99c_10_signal_sigsegv_2d1d35c_79_cov_691940146_EXT_A_ericsson_3.bit

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes out of array read
Fixes: asan_heap-oob_e476fc_2_asan_heap-oob_1333ec6_61_CAMACI3_Sony_C.jsv

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes use of uninitialized memory
Fixes: signal_sigsegv_504fb0_10_signal_sigsegv_504fb0_343_mewmew_ssa.avi

Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind

* commit '7d97511e':
  configure: Add -lrt dependency to avutil's pc file.

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

Also updates the reference since it was generated by the non-bitexact
x86 specific code.

This is needed for clock_gettime.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes overread
Fixes: asan_heap-oob_84f75d_8_asan_heap-oob_a2a00a_341_mbc.ts

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>