This allows supporting files for which the image stride is smaller than
the max. block size + number of subpel mc taps, e.g. a 64x64 VP9 file
or a 16x16 VP8 file with -fflags +emu_edge.
* commit '5e25fdbfe01635cfc650ac4adc27d434b2df0d64':
vc1dec: Make sure last_picture is initialized in vc1_decode_skip_blocks
See: 09de0ffeab
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ede508443e4bf57dc1e019fac81bf6244b88fbd3':
vc1dec: Fix leaks in ff_vc1_decode_init_alloc_tables on errors
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Previously, s->context_initialized was left set to 1
if ff_vc1_decode_init_alloc_tables failed, skipping the
initialization completely on the next decode call.
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
This reverts commit bf36dc50ea, reversing
changes made to b7fc2693c7.
Conflicts:
libavcodec/h264.c
Keeping support for the old VDPAU API has been requested by our VDPAU maintainer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes CID732197/6
A assert is added to check that the disabled code wont
be needed in the future.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '728214992e3698305550c1762f973d2ac567f016':
vc1dec: Remove interlaced warning
vc1dec: Fix mixed field/frame intensity compensation
vc1dec: Match addressing between compensation and MC in vc1_mc_4mv_chroma4
vc1dec: Handle top and bottom blocks in vc1_mc_4mv_chroma4() differently if needed
vc1dec: Fix doxy for vc1_mc_4mv_chroma4()
vc1dec: Drop old use_ic code from vc1_b_mc
vc1: Use shuffled use_ic instead of equally shuffled mv_mode
vc1dec: Implement intensity compensation for vc1_interp_mc()
Conflicts:
Changelog
libavcodec/vc1dec.c
libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Now it can use different references for those blocks and even use
averaging.
This fixes several chroma artifacts in several videos.
Signed-off-by: Martin Storsjö <martin@martin.st>
Use the intensity-compensated reference frame for subsequent
fields/B-frames.
Since we currently don't change the reference frame we have to
maintain lookup tables for intensity compensation in the following
dependent frames.
Signed-off-by: Martin Storsjö <martin@martin.st>
This simplifies the code since copying MVs to the reference is not needed
anymore (and maybe something about fixing artifacts).
Also remove the unused mv_f_last.
Fixes a small number of artifacts in black_screen_VC-1.mkv
and several more artifacts in other videos.
Signed-off-by: Martin Storsjö <martin@martin.st>
This fixes a valgrind warning about use of uninitialized stuff
(no actual such use occurs though)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '1fb013a57c6d98d3f425506eb25f32b2cf7ddc6f':
vc1dec: Add support for interlaced B-frames
Conflicts:
libavcodec/vc1dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
configure: Use linker hardening flags on mingw
vc1: Make INIT_LUT() self contained
vc1: Simplify code by using INIT_LUT()
vc1: Move INIT_LUT() further up to allow using it in more places
vc1dec: Remove some now unused variables
vc1dec: Do not allow field_mode to change after the first header
vc1, mss2: Check for any negative return value from ff_vc1_parse_frame_header
vc1dec: Fix current ptr selection in vc1_mc_4mv_chroma()
vc1dec: Factorize picture pointer selection in vc1_mc_4mv_chroma()
vc1dec: Factorize picture pointer selection code
vc1dec: Factorize srcU/V offseting
vc1dec: Fix tff == 0 handling in init_block_index()
vc1dec: Update destination pointers in context for fields
Conflicts:
libavcodec/vc1.c
libavcodec/vc1dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is required if we return other error codes than explicitly
-1, which so far has been the only other possible return value
besides 0.
Signed-off-by: Martin Storsjö <martin@martin.st>
