Ported from libav. Authored by one of the following:
Anton Khirnov <anton@khirnov.net>
Diego Biurrun <diego@biurrun.de>
Vittorio Giovara <vittorio.giovara@gmail.com>
Reviewed-by: kierank
Signed-off-by: James Almer <jamrial@gmail.com>
This applies a specific fixup to some Blu-ray streams which contain
redundant PPSs modifying irrelevant parameters of the stream which
confuse other transformations which require correct extradata.
A new single global PPS is created, and all of the redundant PPSs
within the stream are removed.
(cherry picked from commit e6874bc3af)
This is able to modify some header metadata found in the SPS/VUI,
and can also add/remove AUDs and insert user data in SEI NAL units.
(cherry picked from commit 9e93001b61)
(cherry picked from commit c42b62d1f9)
Add comments to describe the sources of the constraint values expressed here,
and add some more related values which will be used in following patches.
Fix the incorrect values for SPS and PPS count (they are not the same as those
used for H.264), and remove HEVC_MAX_CU_SIZE because it is not used anywhere.
(cherry picked from commit b88da98b34)
Fixes: runtime error: signed integer overflow: 2 * -1094995530 cannot be represented in type 'int'
Fixes: 3512/clusterfuzz-testcase-minimized-4812747210489856
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Pack the data to half word before clipping.
Use immediate unsigned saturation for clip to max saving one vector register.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Load the specific destination bytes instead of MSA load and pack.
Use immediate unsigned saturation for clip to max saving one vector register.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Remove loops and unroll as block sizes are known.
Removed unused functions.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Replace generic with block size specific function.
Load the specific destination bytes instead of MSA load and pack.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The public functions av_alloc_vdpaucontext() and
av_vdpau_alloc_context() are allocating AVVDPAUContext
structure that is supposed to be placed in avctx->hwaccel_context.
However the rest of libavcodec/vdpau.c uses avctx->hwaccel_context
as struct VDPAUHWContext, that is bigger and does contain
AVVDPAUContext as first member.
The usage includes write to the new variables in the bigger stuct,
without checking for block size.
Fix by always allocating the bigger structure.
Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com>
In the past XvMC forced simple_idct since
it was using FF_IDCT_PERM_NONE.
However now we have SIMD variants of simple_idct that
are using FF_IDCT_PERM_TRANSPOSE and if they are selected
XvMC would get coefficients in the wrong order.
The patch creates new FF_IDCT_NONE that
is used only for this kind of hardware decoding
and that fallbacks to the old C only simple idct.
Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Load the specific bytes instead of MSA load.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Mark Thompson
James Almer
Martin Vignali
Michael Niedermayer
Kaustubh Raste
Clément Bœsch
Ivan Kalvachev
Carl Eugen Hoyos