FFmpeg

Commit Graph

Author	SHA1	Message	Date
Janne Grunau	94235f2ba2	indeo3: avoid writes without necessary alignment in copy_cell() Cells starting at a position aligned to 8 pixels but wider than 4 blocks are copied with 3 blocks per loop. This creates problems on the next loop iterations since the routine copying 2 blocks requires the same alignment on some architectures like ARM NEON.	12 years ago
Anton Khirnov	a97d8cc16e	indeo3: use unaligned reads on reference blocks. They are not guaranteed to be aligned. Fixes Bug 503. CC:libav-stable@libav.org	12 years ago
Anton Khirnov	bda9e6d923	indeo3: use put_pixels instead of put_no_rnd_pixels in copy_cell() They are the same in this case, except put_pixels also has blocksizes smaller than 8.	12 years ago
Anton Khirnov	95220be1fa	indeo3: fix off by one in MV validity check CC:libav-stable@libav.org	12 years ago
Ronald S. Bultje	8f992dc8c7	indeo3: Use hpeldsp instead of dsputil for half-pel functions This makes the Indeo 3 decoder independent of dsputil. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Anton Khirnov	a0a872d073	indeo3: check motion vectors. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org	12 years ago
Anton Khirnov	34e6af9e20	indeo3: fix data size check The data offsets are relative to the bistream header, which is 16 bytes after the start of the data. Fixes invalid reads with corrupted files. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org	12 years ago
Anton Khirnov	66531d634e	indeo3: switch parsing the header to bytestream2 Also add an additional sanity check to the alt_quant table. Fixes invalid reads with corrupted files. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org	12 years ago
Diego Biurrun	6d97484d72	avcodec: av_log_ask_for_sample() ---> avpriv_request_sample()	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Ronald S. Bultje	4b642ab19b	indeo3: use hpeldsp instead of dsputil for half-pel functions. This makes indeo3 independent of dsputil.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Mans Rullgard	b9ee5f2cab	indeo3: replace use of copy_block4 with put_pixels The destination is sufficiently aligned for put_pixels here. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Anton Khirnov	df9b956751	lavc: fix decode_frame() third parameter semantics for video decoders It's got_frame, not data size	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Paul B Mahol	b0428741c6	indeo3: move get_buffer() above decode_plane() calls This ensure that decode_plane() mmx code like AV_COPY64() does not interfere with possible float instructions in release_buffer/get_buffer. Found-by: Carl Eugen Hoyos Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	20ac916e6d	indeo3: release buffer before calling decode_plane	12 years ago
Paul B Mahol	b02116cc4a	Revert "Partly revert f174fba: indeo3 decoder does not support direct rendering." `f174fba` did not introduce DR1 flag it was already available before that. This reverts commit `8bf44d5c96`.	12 years ago
Carl Eugen Hoyos	8bf44d5c96	Partly revert f174fba: indeo3 decoder does not support direct rendering.	12 years ago
Paul B Mahol	9051025102	lavc: remove duplicated .capabilities Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Anton Khirnov	bff5e5f8b3	indeo3: remove duplicate capabilities line.	12 years ago
Anton Khirnov	f174fbac3c	lavc: add CODEC_CAP_DR1 to all video decoders missing them	12 years ago
Kostya Shishkov	169514c440	indeo3: do not try to output more lines than we can fit Internally chroma planes have multiple of four height while allocated image planes might be smaller if CODEC_FLAG_EMU_EDGE is set. Thus we should not output more lines of chroma than frame can accept. Also the decoder can be safely switched to direct rendering now.	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Anton Khirnov	e4d4044339	indeo3: fix out of cell write. Fixes CVE-2012-2776. CC:libav-stable@libav.org Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Kostya Shishkov	6de226a2b8	indeo3: validate new frame size before resetting decoder	13 years ago
Kostya Shishkov	bc00da2701	indeo3: when freeing buffers, set pointers referencing them to NULL as well	13 years ago
Kostya Shishkov	81064a8045	indeo3: initialise pixel planes on allocation This prevents decoder from reading garbage from it in case of errors later.	13 years ago
Kostya Shishkov	fc417db3f1	indeo3: ensure that decoded cell data is in 7-bit range as presumed by decoder	13 years ago
Hendrik Leppkes	4b7fa553a9	indeo3: fix motion vector validation The index of the motion vector has to be checked before being multiplied by 2 for the array index. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	13 years ago
Michael Niedermayer	4a80ebe491	indeo3: Fix reallocation code so that it doesnt become inconsistent. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	a84851bef8	indeo3dec: check mv bitstream pointer Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	8a521d57b3	indeo3dec: Fix end pointer. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	ba775a54bc	indeo3: fix out of picture write. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	50f4f272fe	indeo3: Fix out of reference reading with NULL blocks. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	e75518e18d	indeo3: move MV check up. This adds checking for modes >= 10. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	33a183df46	indeo3: Fix overreading requant_tab. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	56ffa3fefb	indeo3: Check motion vectors. Fixes overread of reference frame. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Ronald S. Bultje	fc9bc08dca	Indeo3: fix crashes on corrupt bitstreams. Splits at borders of cells are invalid, since it leaves one of the cells with a width/height of zero. Also, propagate errors on buffer allocation failures, so we don't continue decoding (which crashes). Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Martin Storsjö	9cf0841ef3	dsputil: Add ff_ prefix to the dsputil_init functions Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Hendrik Leppkes	6071644287	indeo3: fix motion vector validation The index of the motion vector has to be checked before being multiplied by 2 for the array index. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Janne Grunau	be540e0cb3	indeo3: check motion vectors for validity Fixes null pointer dereferences in fuzzed files found by Oana Stratulat. Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Michael Niedermayer	134aaa79f7	indeo3: Fix null ptr dereference Fixes Ticket804 Bug found by: Oana Stratulat Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	cd645c15d8	indeo3: check return values of allocate_frame_buffers() Bug Found by: Diana Elena Muscalu Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Aneesh Dogra	464ccb0144	indeo3: check per-plane data buffer against input buffer bounds. Fixes : http://bugzilla.libav.org/show_bug.cgi?id=102 Signed-off-by: Alex Converse <alex.converse@gmail.com>	13 years ago
Kostya Shishkov	1469f943ad	indeo3: cosmetics Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Aneesh Dogra	97980db487	indeo3: error out if no motion vector is set. This fixes a crash on a corrupt bitstream (bugzilla #93). Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Michael Niedermayer	1afe49b062	indeo3: out of array read checks for decode_plane() Fixes: avi+indeo3+++1-dog.avi Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	e9e642cbfb	indeo3: Check remaining bits in parse_bintree() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago

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161 Commits (5d509fbdcf6277716414702dc961d33c8e1eedcb)