Fixes: regression
Found-by: NFrank Liberato <liberato@google.com>
Tested-by: NFrank Liberato <liberato@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

avcodec/vp3: Check that there will be sufficient input for the coded fragments in unpack_superblocks()

Fixes: Timeout
Fixes: 6292/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP3_fuzzer-4871218218926080

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This fixes a hypothetical integer overflow
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes: out of array access
Fixes: 5919/clusterfuzz-testcase-minimized-5859311382167552
Fixes: special case for theora (untested due to lack of sample)

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Replace them with av_pix_fmt_get_chroma_sub_sample.
Signed-off-by: NJames Almer <jamrial@gmail.com>

This merges commit 1202b712 from libav,
originally written by Anton Khirnov and skipped in
fc63d5ce.

 libavcodec/vp3.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

Decreases the time spend decoding junk.

May fix: 1283/clusterfuzz-testcase-minimized-6221126759874560

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpegSigned-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

Fixes: 5c6129154b356b80bcab86f9e3ee5d29/signal_sigabrt_7ffff6ae7cc9_7322_d26ac6d7cb6567db1b8be0159b387d0b.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes assertion failure
Fixes: 266ee543812e934f7b4a72923a2701d4/signal_sigabrt_7ffff6ae7cc9_7322_85218d61759d461bdf7387180e8000c9.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes assertion failure
Fixes: d0bb0662da342ec65f8f2a081222e6b9/signal_sigabrt_7ffff6ae7cc9_5471_82964f0a9ac2f4d3d59390c15473f6f7.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes: 1536b9b096a8f95b742bae9d3d761cc6/signal_sigsegv_294aaed_4460_b209bd1e7cebe458b53072a44191316d.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes null pointer dereference
Fixes: 1536b9b096a8f95b742bae9d3d761cc6/signal_sigsegv_294aaed_2039_8d1797aeb823ea43858d0fa45c9eb899.ogv

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

When compiled with --disable-pthreads, e.g
http://fate.ffmpeg.org/report.cgi?time=20150917015044&slot=alpha-debian-qemu-gcc-4.7,
a bunch of -Wunused-functions are reported due to missing header guards
around threading related functions.
This patch should silence such warnings.
Signed-off-by: NGanesh Ajjanagadde <gajjanagadde@gmail.com>

Fixes CID1322316
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Express bitfields more simply.
Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>

Convert doxygen to multiline and express bitfields more simply.
Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>

Fixes null pointer dereference
Fixes: b15eb06e0111e94bc59123c86db7aff9_signal_sigsegv_a0500f_45_320vp3.nsv with allocation limit  536870912

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This shouldnt make a difference
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes null pointer dereference
Fixes: signal_sigsegv_000_3694_cov_1050071691_theora.mkv

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

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Fixes use of uninitialized memory
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>

Reviewed-by: NReimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

When decoding, this field holds the inverse of the framerate that can be
written in the headers for some codecs. Using a field called 'time_base'
for this is very misleading, as there are no timestamps associated with
it. Furthermore, this field is used for a very different purpose during
encoding.

Add a new field, called 'framerate', to replace the use of time_base for
decoding.

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

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

Fixes memleak on seeking
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

This also avoids a macro name clash and related warning on ARM.

Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.