Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 878e5bd6f555ad6167abacb30d66e47aabcdd745)
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 2c85d7c015489e169759e52c21499579dae5c2b1)
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 f6badba1859fb266a9c0bdaf006a04c73873cd90)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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 c83002a4f8042ccfa0688a9a18e8fa0369c1fda8)
This was broken in 0d96ec19ebc1577b27a889136364a906e1c627b1 under the
assumption that there is only one tref leaf atom.
Fixes Ticket #2081.
(cherry picked from commit 765158dd82a2e985f4eb0b201a8256964403f623)
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 adbb75dbd8eabdaa7439633d26a79eb5b7387ef9)
see trac 1345
https://ffmpeg.org/trac/ffmpeg/ticket/1345
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c73b1a1d8010dac29653b41d39af9c18247179c3)
0/0 fails to be parsed
Fixes Ticket1814
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a63d7213b3eb96a35fdf34b05f45e5675107d8f9)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b7280cff9a7683395d7f899517b4aea8b52f12a4)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This reverts 2de88776892093b10522152f1f72b7dfc0320502
Fixes Ticket 1883
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e5927910c2a156e9ad6388413400b620d1dcf035)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 343c73e252d3e3c1e5d2037c2e8eb14b504f1e6f)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Some files simply contain invalid info tags.
Fixes unrelated bug posted into Ticket1821
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 09456d0df13404f004ab3a341d9ac21b7e5e6d6d)
Fixes Ticket1821
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d0c27e88d2bb495d61bd32f41769f767a0c2a802)
Fixes fate-h264-conformance-cvnlfi2_sony_h and smllwebdl.mkv from
https://github.com/OpenELEC/OpenELEC.tv/issues/1557 .
(cherry picked from commit 24c62ea7a5df44804be88150aa0c45e6796b5da9)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The previous code computes the offset by reversing the growth
of the allocated buffer size: it is complex and did lead to
inconsistencies when the size limit is reached.
Fix trac ticket #1991.
(cherry picked from commit 03847eb8259291b4ff1bd840bd779d0699d71f96)
Conflicts:
libavformat/utils.c
Fixes out of array access
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6d1c5ea04af3e345232aa70c944de961061dab2d)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3556e7ce737edade8c5e628a19e2b5da0809928d)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1856162caa912a4a845b7caff51c9e2dff3d39d9)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 106790a4e92f40fedbe20631c693c95c7c8f3039)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ac6659aff77b08a894967a2880eef13218baacb9)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
