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

Fixed CID968588
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fc86f88b

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dcbe1581

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

Fixes CID968587
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3fba3e79

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

Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e4eebc2d

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

It's been returning an error value since
bad446e2

Also check for the errors it returns.
(cherry picked from commit ea382767

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a601eb95

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6f88d2d7

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 659546b4

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e2704381

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 795d2dc2

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bdd71abe

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0ccb31dc

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3b8d66d5

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d6180aa2

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 871b6ec0

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9302ad1a

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 68a25c64

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 98fed594

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

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0c6b0409

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7fb87bc5

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bcc4ef1a

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 878e5bd6

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

If the motion vector is at a subpixel position, we need 3 pixels below
the motion vector's wholepel position available, not 2, since the MC
filter is a sixtap filter for the hpel position, and then a bilin filter
for the qpel position.

This patch fixes highly irreproducible (0.1%) fate failures in frame 2
and 4 of h264-conformance-cama2_vtc_b (e.g. first P-frame, first field,
last line of MB x=40,y=2 and second field and last lines of MBs x=39-40,
y=3). These used pre-loopfilter instead of post-loopfilter data because
the await_progress() waited for one line too little in that field, and
the motion vector of these particular MBs happened to align exactly to a
position where that demonstrates the bug.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2c85d7c0

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

Clobbering these tables will temporarily clobber the template used
as a basis for other threads to start decoding from. If the other
decoding thread updates from the template right at that moment,
subsequent threads will get invalid (or, usually, none at all) mmco
tables. This leads to invalid reference lists and subsequent decode
failures.

Therefore, instead, decode the mmco tables only for the first slice in
a field or frame. For other slices, decode the bits and ensure they
are identical to the mmco tables in the first slice, but don't ever
clobber the context state. This prevents other threads from using a
clobbered/invalid template as starting point for decoding, and thus
fixes decoding in these cases.

This fixes occasional (~1%) failures of h264-conformance-mr1_bt_a with
frame-multithreading enabled.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f6badba1

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d676598f)

Fixes PCM audio in Kansas Pheasant Hunt 2000 mpg file.
Reported-by: Mashiat Sarker Shakkhar
(cherry picked from commit ad406f7e)

It was always detected successfully.
(cherry picked from commit c345100e)

Fixes Ticket1905, Ticket2114
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2713e43a)

Fix trac ticket #2083.
(cherry picked from commit 69a1667b)

Fixes Ticket913
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4784a135)

Fixes Ticket2088
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 341e40f1)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3a6b6f42)

This is consistent with the other ff_ass_split_* functions.

It also fixes a crash when trying to split a dialog with text=NULL
(which seems to happen when the text of the dialog is empty); basically,
this commit fixes crashes when trying to encode an empty text subtitle
dialog (see subrip and mov_text encoders).

Fixes Ticket2048.
(cherry picked from commit c83002a4)

This was broken in 0d96ec19 under the
assumption that there is only one tref leaf atom.

Fixes Ticket #2081.
(cherry picked from commit 765158dd)

Fixes Ticket #2087.
(cherry picked from commit 7d66bc79)

Fixes Ticket1817
Based on patch by: Przemyslaw Wesolek <przemyslaw.wesolek@go.art.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit adbb75db)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a0167958)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 03df9720)

Conflicts:
	libavcodec/mpeg12enc.c