FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	c9220d5b06	avcodec/mjpegdec: Reorder operations to avoid undefined behavior Fixes: asan_heap-oob_1dd60fd_267_cov_2954683513_5baad44ca4702949724234e35c5bb341.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	84afc6b70d	avcodec/mjpegdec: Fix small picture upscale Fixes out of array access Fixes: asan_heap-oob_1dd60fd_267_cov_2954683513_5baad44ca4702949724234e35c5bb341.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	dde6b2a355	avcodec/mjpegdec: dont try to combine fields for decimated multiscope 2 material Fixes Ticket4535 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	81cf910856	avcodec/mjpegdec: fix len computation in ff_mjpeg_decode_dqt() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	cf9ab119d0	avcodec/mjpegdec: Check len in ff_mjpeg_decode_dht() Fixes CID1239167 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	dc35a58149	avcodec/mjpegdec: Check len in ff_mjpeg_decode_dqt() Fixes CID1239060 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	6a85dfc830	lavc: Replace av_dlog and tprintf with internal macros	10 years ago
Diego Biurrun	4978850ca2	build: Split JPEG-related tables off into a separate component	10 years ago
Diego Biurrun	e6e3dcba0c	mjpeg: Move code only used in the encoder(s) to the appropriate header	10 years ago
Michael Niedermayer	b1fbe29e51	avcodec/mjpegdec: Support 31111100 sampling Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	e15455891b	avcodec/mjpegdec: Change upscale_* to an array instead of a bitmask This allows storing integer factors instead of just 0 and 1 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	5a0e953c24	mjpeg: Mark decoder family as thread safe No global variables are used and the VLC tables are allocated without static elements. This will allow using a JPEG decoding context within other decoders.	10 years ago
Michael Niedermayer	08509c8f86	avcodec/mjpegdec: Skip blocks which are outside the visible area Fixes out of array accesses Fixes: ffmpeg_mjpeg_crash.avi Found-by: Thomas Lindroth <thomas.lindroth@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	fabbfaa095	avcodec/mjpegdec: Check number of components for JPEG-LS Fixes out of array accesses Fixes: asan_heap-oob_1c1a4ea_1242_cov_2274415971_TESTcmyk.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	afa92907f3	avcodec/mjpegdec: Check escape sequence validity Fixes assertion failure Fixes: asan_heap-oob_1c1a4ea_1242_cov_2274415971_TESTcmyk.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Anton Khirnov	809c3023b6	mjpegdec: check for pixel format changes Fixes possible invalid memory access. Based on code by Michael Niedermayer <michaelni@gmx.at> CC: libav-stable@libav.org Bug-ID: CVE-2014-8541 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind	10 years ago
Michael Niedermayer	970a8f1c25	avcodec/mjpegdec: Fix integer overflow in shift Fixes: signal_sigabrt_7ffff6ac7bb9_2683_cov_4120310995_m_ijpg.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	0eecf40935	avcodec/mjpegdec: Fix context fields becoming inconsistent Fixes out of array access Fixes: asan_heap-oob_1ca4f85_2760_cov_144449187_miss_congeniality_pegasus_ljpg.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	172d22a071	avcodec/mjpegdec: Add YUVA420 formats to *scale asserts Fixes assertion failure Fixes: signal_sigabrt_7ffff6ac7bb9_2042_cov_2593130068_ef1f8a057bb6056674fad92f6b8c0acd.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	03a17f2bbf	avcodec/mjpegdec: Print the number of bits in the unsupported pixel format error Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	0bf416f262	avcodec/mjpegdec: Check for pixfmtid 0x42111100 \|\| 0x24111100 with more than 8 bits These cases are not supported yet Fixes assertion failure Fixes: signal_sigabrt_7ffff6ac7bb9_1_cov_1553101927_00.jpg Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	2f6550bb9a	avcodec/mjpegdec: fix pixfmtid 0x14111100 Fixes part of Ticket 2004 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	4243415741	avcodec/mjpegdec: Support some subsampled GBR variants Fixes Ticket4045 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	960c573cc5	avcodec/mjpegdec: support pix fmt id 0x22111111 Fixes: 4163724_300.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	199d9f995d	mjpegdec: fix undefined shift Add a comment to explain the code. CC: libav-stable@libav.org Bug-Id: CID 1194388	10 years ago
Michael Niedermayer	c5ffd7aee5	avcodec/mjpegdec: use FF_CEIL_RSHIFT() for width No testcase known Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	d5a3a20d1e	avcodec/mjpegdec: simplify chroma_height calculation Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	059c842818	avcodec/mjpegdec: Support 24111100 pix fmt id Fixes 129533924_640.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	0db1f2c2c7	avcodec/mjpegdec: sanity check bits Fixes undefined shift Fixes: asan_heap-oob_16668e9_2_asan_heap-oob_16668e9_346_miss_congeniality_pegasus_mjpg.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	5c378d6a6d	avcodec/mjpegdec: check bits per pixel for changes similar to dimensions Fixes out of array accesses Fixes: asan_heap-oob_16668e9_2_asan_heap-oob_16668e9_346_miss_congeniality_pegasus_mjpg.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Clément Bœsch	b96d864fd6	avcodec/mjpegdec: Fix chroma width rounding Fixes vertical line at the right side Fixes Ticket 3929 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	1654ca7d4e	avcodec/mjpegdec: fix rounding of chroma_height Fixes green line at the bottom Fixes Ticket3913 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	f0d4f00f24	avcodec/mjpegdec: fix green line at the bottom with upscale v Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	63a52ca134	avcodec/mjpegdec: fix green vertical line at the right with upscale h Fixes Ticket3891 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	5c7899a483	avcodec/mjpegdec: Support AV_PIX_FMT_YUV420P16 with upscale_h Fixes assertion failure Fixes: test42f.jpg Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Przemysław Sobala	c68098ba4a	avcodec/mjpegdec: add pix_fmt: 0x14121200 Fixes: _15801_F.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	ef7e8425e8	avcodec/mjpegdec: factorize some parts of the pix_fmt_id switch() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	784e1cf76b	avcodec/mjpegdec: handle luma upscale detection generically Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	64d98dadc7	avcodec/mjpegdec: set upscale_h/upscale_v using generic code instead of hardcoding a list Some code is left to handle corner cases Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	7558e55345	avcodec/mjpegdec: Support pix_fmt_id==0x11222200 Fixes: 4858286_300.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	cd417d947e	avcodec/mjpegdec: fix width for non chroma in rescaling Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	4e09300ffa	mjpegdec: Support pix_fmt_id == 0x22112200 Fixes 4780490_300.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	e3fcb14347	dsputil: Split off IDCT bits into their own context	11 years ago
Derek Buitenhuis	2deb614272	mjpegdec: Properly set the context colorspace info The JPEG spec requires it to be this. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	c11043aca7	mjpegdec: Properly set the context colorspace info The JPEG spec requires it to be this. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Justin Ruggles	9e500efdbe	Add av_image_check_sar() and use it to validate SAR	11 years ago
Diego Biurrun	e74433a8e6	dsputil: Split clear_block/fill_block off into a separate context	11 years ago
Michael Niedermayer	0545ef7116	avcodec/mjpegdec: Improve intel jpeg flip heuristic Fixes Ticket3698 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	149be91374	avcodec/mjpegdec: request a AMV sample with non mod 16 height Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	ec33f59fed	avcodec/mjpegdec: Support pix_fmt_id== 0x42111100 Fixes: 538782_300.jpg Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago

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416 Commits (90dd6ad22cee78ef8d8de27e30839f99e69a7909)