FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	8630b2cd36	avcodec/ffv1dec: Fix runtime error: signed integer overflow: 1550964438 + 1550964438 cannot be represented in type 'int' Fixes: 1559/clusterfuzz-testcase-minimized-5048096079740928 Fixes: 1560/clusterfuzz-testcase-minimized-6011037813833728 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	3a4d387195	avcodec/ffv1dec: Fix copying planes of paletted formats Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	549045254c	Fix all -Wformat warnings raised by DJGPP	8 years ago
Carl Eugen Hoyos	322568c079	lavc/ffv1: Support YUV4xxP12 and GRAY12.	8 years ago
Michael Niedermayer	d1d18de6ad	avcodec/ffv1dec: Set packed_at_lsb for 16bit YUV This avoids unneeded computations Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	d7a3bb2088	avcodec/ffv1dec: Support gray 10/12/16 explicitly avoid shifts Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Carl Eugen Hoyos	55a424c5a8	lavc/ffv1dec: Scale output for msb-packed compression to full 16bit. 2% slowdown for existing decode-line timer.	8 years ago
Diego Biurrun	17cb56b356	ffv1: Remove broken disabled cruft	8 years ago
Michael Niedermayer	ce2217b25e	avcodec/ffv1: add AV_PIX_FMT_GBRP16 support Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	74314f1f5f	avcodec/ffv1: template functions to allow data types different from int16_t This is required for >= 16bit RGB support I tried it without templates but its too much duplicated code Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	697b2bbd54	avcodec/ffv1dec: Test extradata_size instead of extradata for better robustness Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Luca Barbato	3c08b7bc76	ffv1: Report additional bitstream information in verbose mode Useful to inspect samples.	9 years ago
Jerome Martinez	ec9f04423b	ffv1: Error out on unsupported format Transparency is supported only by YUV and within specific bit depths.	9 years ago
Jérôme Martinez	878c3a3645	avcodec/ffv1dec: fix some unsupported pix_fmt When checking pix_fmt mapping, some bitstreams are mapped to an incorrect pix_fmt instead of being rejected (ENOSYS). Actually, such bitstreams are not supported (FFmpeg encoder does not produce such bitstream, such bitstream may come only from another encoder for the moment). - JPEG 2000 RCT 11/13/15/16 bit depths are mapped to a 8-bit FFmpeg pix_fmt (e.g. bgr0), which is not expected. - JPEG 2000 RCT 9/10/12/14 bit depths with alpha are mapped to a FFmpeg pix_fmt without alpha (e.g. AV_PIX_FMT_GBRP9 for 9-bit with alpha), which is not expected. The order for choosing the pix_fmt is changed to the one used by YCbCr selection (<=8 bit first). " && !f->transparency" is added to the other lines. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Derek Buitenhuis	21f9468402	avutil: Rename FF_CEIL_COMPAT to AV_CEIL_COMPAT Libav, for some reason, merged this as a public API function. This will aid in future merges. A define is left for backwards compat, just in case some person used it, since it is in a public header. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	9 years ago
Clément Bœsch	e8bc642202	lavu: add AV_CEIL_RSHIFT and use it in various places Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	48985576b1	avcodec/ffv1dec: Support AV_PIX_FMT_YA8 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Vittorio Giovara	4bb1070c15	ffv1: Explicitly name the coder type FFv1 uses two types of coders, golomb and range with two different tables. This is exposed this in a rather convoluted way, for example mentioning to set coder type 1 while initializing the variable 'ac' to 2, because encoder does not use range coder with default table. Appropriate internal coder type values have been added and used in any check rather than using raw numbers. Initialization of avctx.coder_type in ffv1dec is removed because this field is encoder only. An unneeded validation check in the encoder is dropped too. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	e04126072e	avcodec/ffv1dec: Clear quant_table_count if its invalid Fixes deallocation of corrupted pointer Fixes: 343dfbe142a38b521ed069dc4ea7c03b/signal_sigsegv_421427_4074_ffb11959610278cd40dbc153464aa254.avi No releases affected Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	a8b254e436	avcodec/ffv1dec: Print an error if the quant table count is invalid Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	c665532820	avcodec/ffv1dec: Free tables on init failure Fixes memleak Fixes: 07ec1fc3c1cbf2d3edcd7d9b52ca156c/asan_heap-oob_13624c5_491_ecd4720a03e697ba750b235690656c8f.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	5745cf799a	avcodec/ffv1dec: Check for 0 quant tables Fixes assertion failure Fixes: 07ec1fc3c1cbf2d3edcd7d9b52ca156c/asan_heap-oob_13624c5_491_ecd4720a03e697ba750b235690656c8f.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	5063a18f56	avcodec/ffv1dec: update progress in case of broken pointer chains Fixes deadlock Fixes Ticket4932 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	4c2d4e8700	avcodec/ffv1dec: Clear slice coordinates if they are invalid or slice header decoding fails for other reasons Fixes Ticket4931 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Ganesh Ajjanagadde	2cbaa078d1	avcodec: use HAVE_THREADS header guards to silence -Wunused-function When compiled with --disable-pthreads, e.g http://fate.ffmpeg.org/report.cgi?time=20150917015044&slot=alpha-debian-qemu-gcc-4.7, a bunch of -Wunused-functions are reported due to missing header guards around threading related functions. This patch should silence such warnings. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>	9 years ago
Michael Niedermayer	2d221d9e06	avcodec/ffv1dec: Fix off by 1 error in quant_table_count check Fixes: invalid_read.nut Found-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	10bbf6cf62	avcodec/ffv1dec: Explicitly check read_quant_table() return value Forwards the error code, avoids potential integer overflow Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	25df7b1c35	avcodec/ffv1dec: Fix >8bps error concealment Fixes: 03_cave_girls_h264_slc24_slicecrc1_fuzzed.avi Found-by: Dinah Handel <dinahrhandel@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	b2955b6c5a	avcodec/rangecoder: Check e Fixes hang.nut Found-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	aa6c43f3fd	avcodec/ffv1: seperate slice_count from max_slice_count Fix segfault with too large slice_count Fixes Ticket4879 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Hendrik Leppkes	5d8e836d0e	Replace all remaining occurances of step/depth_minus1 and offset_plus1	9 years ago
Michael Niedermayer	b7baebb754	avcodec/ffv1dec: Print CRCs at picture debug level Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	eac161451d	avcodec/ffv1dec: Check that there is enough space for the CRC in the global header Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Timothy Gu	f0af25ae11	ffv1: Add missing ff_ prefixes	9 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	cf52e6d012	avcodec/ffv1dec: Fix skip_alpha Fixes Ticket4322 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	d43cd6b08e	avcodec/ffv1dec: Check chroma shift parameters Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	03baa861ea	avcodec/ffv1dec: More completely check micro_version Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	3dfbdb328e	avcodec/ffv1dec: Check quant table symbols more completely Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Jérôme Martinez	14605a0b99	ffv1dec: plane_index is 1 in case of version 4 gray+alpha. Since version 4, plane_index for the alpha plane is 1 in the case chroma_planes is 0. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
James Almer	ba625dd8a1	avcodec: use av_mod_uintp2() where useful Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
Vittorio Giovara	6a85dfc830	lavc: Replace av_dlog and tprintf with internal macros	10 years ago
Diego Biurrun	ca09effb01	ffv1: Drop unnecessary casts and const qualifiers to match function signatures libavcodec/ffv1dec.c:898:36: warning: cast discards ‘const’ qualifier from pointer target type	10 years ago
Reimar Döffinger	8437cc7206	ffv1dec: Avoid unnecessarily large stack usage and copies. Ideally the compiler could figure this out on its own, but it seems it can't. An alternative that would avoid the messy explicit memcpy would be to use a sub-struct for the parts that should be preserved, which can then simply be assigned. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Michael Niedermayer	da7d839a0d	ffv1dec: check that global parameters do not change in version 0/1 Such changes are neither allowed nor supported Found-by: ami_stuff Bug-Id: CVE-2013-7020 CC: libav-stable@libav.org Signed-off-by: Anton Khirnov <anton@khirnov.net>	10 years ago
Justin Ruggles	9e500efdbe	Add av_image_check_sar() and use it to validate SAR	11 years ago
Michael Niedermayer	cc86158173	avcodec/ffv1dec: use av_malloc_array() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Janne Grunau	fb0c9d41d6	avutil: remove timer.h include from internal.h Added libavutil/timer.h include to all files with {START,STOP}_TIMER.	11 years ago
Michael Niedermayer	0e575c24d6	ffv1.4: use 2 coefficients for calculating the Y plane in the RCT 0-0.7% improved compression Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	7854d2d251	avcodec/ffv1: support adjusting the g vs r + b coefficient in the RCT about 1% better compression Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago

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109 Commits (0561bd2fc2bff0dbe651d5998e9f129c43d25eb3)