input_video_filter and output_video_filter can't be NULL at this point.
If they are, the current code would likely crash anyway (since
filtered_frame would be NULL and sent to do_video_out().
Conversion of the luma intra prediction mode to one of the constrained
("alzheimer") ones can happen by crafting special bitstreams, causing
a crash because we'll call a NULL function pointer for 16x16 block intra
prediction, since constrained intra prediction functions are only
implemented for chroma (8x8 blocks).
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
in , else (1) { if (!1) } the if conditional will never evaluate to be true.
So as making the check useless.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The added tests are limited to the case where timestamp discontinuities
are not allowed. The default is 30 hours which is arbitrarily picked and
quite conservative.
This prevents a out of memory condition due to duplicating a frame
millions of times.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
We need to do unsigned saturation in order to cover the corner case when the
absolute coefficient value is 16777215 (the maximum value).
Fixes Bug #216
That way all mix levels as exported by avpriv_ac3_parse_header()
will have the same meaning.
Previously the 3-bit center mix level for E-AC-3 was used to index in a
4-entry table, leading to out-of-array reads.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
Signed-off-by: Alex Converse <alex.converse@gmail.com>
* qatar/master: (26 commits)
eac3dec: replace undefined 1<<31 with INT32_MIN in noise generation
yadif: specify array size outside DECLARE_ALIGNED
prores: specify array size outside DECLARE_ALIGNED brackets.
WavPack demuxer: set packet duration
tta: use skip_bits_long()
mxfdec: Ignore the last entry in Avid's index table segments
mxfdec: Sanity-check SampleRate
mxfdec: Handle small EditUnitByteCount
mxfdec: Consider OPAtom files that do not have exactly one EC to be OP1a
mxfdec: Don't crash in mxf_packet_timestamps() if current_edit_unit overflows
mxfdec: Zero nb_ptses in mxf_compute_ptses_fake_index()
mxfdec: Sanity check PreviousPartition
mxfdec: Never seek back in local sets and KLVs
mxfdec: Move the current_partition check inside mxf_read_header()
mxfdec: Fix infinite loop in mxf_packet_timestamps()
mxfdec: Check eof_reached in mxf_read_local_tags()
mxfdec: Check for NULL component
mxfdec: Make sure mxf->nb_index_tables > 0 in mxf_packet_timestamps()
mxfdec: Make sure x < index_table->nb_ptses
build: Add missing directories to DIRS declarations.
...
Conflicts:
doc/build_system.txt
doc/fate.texi
libavfilter/x86/yadif_template.c
libavformat/mxfdec.c
libavutil/Makefile
tests/fate/audio.mak
tests/fate/prores.mak
tests/fate/screen.mak
tests/fate/video.mak
tests/ref/fate/bethsoft-vid
tests/ref/fate/cscd
tests/ref/fate/dfa4
tests/ref/fate/nuv
tests/ref/fate/vp8-sign-bias
tests/ref/fate/wmv8-drm
tests/ref/lavf/gxf
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Comment-by-michael: iam commiting this as the code cannot work without it and likely works with it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This fixes crashes on exit when closing a bitstream filter that
hasn't allocated any private data, on OS X.
Signed-off-by: Martin Storsjö <martin@martin.st>
