FFmpeg

Commit Graph

Author	SHA1	Message	Date
Luca Barbato	43bacd5b7d	vc1: check mb_height validity. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	11 years ago
Luca Barbato	090cd06311	vc1: check the source buffer in vc1_mc functions Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	11 years ago
Rémi Denis-Courmont	578ea75a9e	vdpau: remove old-style decoders Signed-off-by: Anton Khirnov <anton@khirnov.net>	11 years ago
Carl Eugen Hoyos	ac83d62136	Avoid a null pointer dereference on oom when decoding vc1. Fixes ticket #2723.	12 years ago
Michael Niedermayer	6c4516d041	avcodec/vc1dec: Check source picture availability in vc1_mc_4mv_chroma4() Fixes null pointer dereference Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	fca435fee1	vc1dec: Disable dead code 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>	12 years ago
Michael Niedermayer	d8b9dbe776	vc1dec: Fix mixed field/frame intensity compensation Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	17410faa22	vc1dec: Match addressing between compensation and MC in vc1_mc_4mv_chroma4 Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	1be175f929	vc1dec: Handle top and bottom blocks in vc1_mc_4mv_chroma4() differently if needed 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>	12 years ago
Michael Niedermayer	c69765a2cc	vc1dec: Fix doxy for vc1_mc_4mv_chroma4() Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	b412f705b5	vc1dec: Drop old use_ic code from vc1_b_mc Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	5053a9a1ff	vc1: Use shuffled use_ic instead of equally shuffled mv_mode Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	3ced06f283	vc1dec: Implement intensity compensation for vc1_interp_mc() Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	28243b0d35	vc1dec: Redesign the intensity compensation 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>	12 years ago
Michael Niedermayer	93b1281264	vc1dec: Shuffle field MVs after decoding, not before 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>	12 years ago
Michael Niedermayer	ebe8c7fe52	vc1dec: restructure interpmvp code This fixes a valgrind warning about use of uninitialized stuff (no actual such use occurs though) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Sebastian Sandberg	1fb013a57c	vc1dec: Add support for interlaced B-frames Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Clément Bœsch	6c5bd7d785	lavc/vc1dec: fix a few "may be used uninitialized" warnings.	12 years ago
Michael Niedermayer	f4cc38e339	vc1dec: silence "may be used uninitialized in this function" warning from gcc Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Martin Storsjö	3ca3709ad4	vc1dec: Remove some now unused variables Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	4162fc62b3	vc1dec: Do not allow field_mode to change after the first header This fixes out of array accesses. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	ec7d002e55	vc1, mss2: Check for any negative return value from ff_vc1_parse_frame_header 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>	12 years ago
Michael Niedermayer	ccb148e478	vc1dec: Fix current ptr selection in vc1_mc_4mv_chroma() No sample tried shows a difference. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	201412ffec	vc1dec: Factorize picture pointer selection in vc1_mc_4mv_chroma() Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	2412ad1717	vc1dec: Factorize picture pointer selection code Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	19673db34a	vc1dec: Factorize srcU/V offseting Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	012b319d91	vc1dec: Fix tff == 0 handling in init_block_index() This fixes several files from VLC ticket 5887. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	0313653928	vc1dec: Update destination pointers in context for fields This replaces a large number of checks for the second field by fixing the pointers when they are setup. This should also fix I/BI field pictures. Changes checksums for vc1_sa10143, the file becomes slightly closer to what the reference decoder outputs. Based on "vc1dec: the second field is written wrong to the picture" by Sebastian Sandberg <sebastiand.sandberg@gmail.com>. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	5d9d8461fb	vc1dec: Don't apply the loop filter on fields Fixes read of uninitialized memory. Based on a patch by Michael Niedermayer. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	46430fd47c	vc1dec: Don't attempt error concealment on field pictures This is not implemented and doesn't work. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Sebastian Sandberg	1bd57a850a	vc1dec: fieldtx is only valid for interlaced frame pictures The fieldtx_plane is not cleared for interlaced fields. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Carl Eugen Hoyos	905e1e4b52	Cosmetics: Fix indentation and add braces after last commit.	12 years ago
Carl Eugen Hoyos	8b8fa09b65	vc1dec: Call ff_vdpau_vc1_decode_picture() once for each field. Fixes mplayer -vc ffvc1vdpau for interlaced streams.	12 years ago
Michael Niedermayer	d29f9f4a0e	vc1dec: fix lutuv use in vc1_mc_4mv_chroma4() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	7e30bfcb91	vc1dec: Fix mixed field/frame intensity compensation Fixes Ticket2523 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	90c2e40ebb	vc1dec: vc1_mc_4mv_chroma4: match addressing between compensation and MC Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	688fc4ac56	vc1dec: Try to fix vc1_mc_4mv_chroma4() parameters This fixes several chroma artifacts in several videos Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	9b49d3974e	vc1dec: add avg & variable direction support to vc1_mc_4mv_chroma4() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5183365aeb	vc1dec: fix doxy for vc1_mc_4mv_chroma4() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	32a6dfeb12	vc1dec: drop mv_f_last, simplify code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	12e3c1bee4	vc1dec: drop old use_ic code from vc1_b_mc Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	100184ccff	vc1: use use_ic instead of shuffling mv_mode around Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	84c0ec92ae	vc1dec: Implement intensity compensation for vc1_interp_mc() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	782ebd6118	vc1dec: redesign the intensity compensation The existing implementation had little to do with VC1. This could be implemented by adjusting the reference frames ithemselfs but that would make frame multi-threading difficult. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c5669f3c59	vc1dec: fix current ptr selection in vc1_mc_4mv_chroma() No sample tried shows a difference Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	236b0c4084	vc1dec: factorize picture pointer selection in vc1_mc_4mv_chroma() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	72e5d91908	vc1dec: factorize picture pointer selection code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	3fdd0979ac	vc1dec: Fix mv_f shuffling Avoid a (confusing) memcpy() Simpler code Fixes a small number of artifacts in black_screen_VC-1.mkv and several more artifacts in other videos Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	1d0f817b17	vc1dec: Fix mv_f shuffling Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	6c9d28a229	vc1dec: Fix tff == 0 handling in init_block_index() This fixes several files from VLC ticket5887 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

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308 Commits (805fbbefb3a8e438f3a734413f9e9e7ee12e09b2)