FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	e2a4f1a9eb	avcodec/mpeg4videodec: Fix runtime error: signed integer overflow: -135088512 * 16 cannot be represented in type 'int' Fixes: 736/clusterfuzz-testcase-5580263943831552 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	fab13bbbcd	avcodec/mpeg4videodec: Fix runtime error: signed integer overflow: 134527392 * 16 cannot be represented in type 'int' This checks the sprite delta intermediates for overflow Fixes: 716/clusterfuzz-testcase-4890287480504320 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	eb41956636	avcodec/mpeg4videodec: Improve the overflow checks in mpeg4_decode_sprite_trajectory() Also clear the state on errors Fixes integer overflows in 701/clusterfuzz-testcase-6594719951880192 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	25e93aacc2	avcodec/mpeg4videodec: Fix runtime error: left shift of negative value -2650 Fixes: 674/clusterfuzz-testcase-6713275880308736 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	76ba09d182	avcodec/mpeg4videodec: Check the other 3 sprite points for intermediate overflows This is not necessarily specific to fuzzed files Fixes: Multiple integer overflows Fixes: 656/clusterfuzz-testcase-6463814516080640 Fixes: 658/clusterfuzz-testcase-6691260146384896 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	6871df02d9	avcodec/mpeg4videodec: Check sprite_offset in addition to shifts Fixes: 651/clusterfuzz-testcase-5710668915277824 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	6179dc8aa7	avcodec/mpeg4video: Fix runtime error: left shift of negative value Fixes: 644/clusterfuzz-testcase-4726434209726464 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	aa2b75263e	avcodec/mpeg4videodec: Fix runtime error: shift exponent -2 is negative Fixes: 612/clusterfuzz-testcase-4707817137111040 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	cde007dcd3	avcodec: Add FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM to most h263 based codecs Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	8258e36385	avcodec/mpeg4videodec: Fix undefined shifts in mpeg4_decode_sprite_trajectory() Fixes: part of 670190.ogg Found-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	2c9106257f	avcodec/mpeg4videodec: Workaround interlaced mpeg4 edge MC bug Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	6c98398b0b	lavc/get_bits: add a logging context to check_marker() Based on `d338abb664`	9 years ago
Michael Niedermayer	f730367a60	avcodec/mpeg4videodec: Fix default low_delay flag value if not coded Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	87c53e5354	avcodec/mpeg4videodec: Print low_delay value with -debug 1 in decode_vol_header() Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Alexandra Hájková	d338abb664	mpeg4videodec: Call av_log() in check_marker() with AVCodecContext instead of NULL Signed-off-by: Anton Khirnov <anton@khirnov.net>	9 years ago
Alexandra Hájková	e4b38878da	Move check_marker() from get_bits to mpeg4videodec MPEG-4 is the only decoder which uses check_marker(). Signed-off-by: Anton Khirnov <anton@khirnov.net>	9 years ago
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	9 years ago
Andreas Cadhalpun	564dd3f0f4	mpeg4videodec: silence ubsan warning s->ac_val[0][0] is of type 'int16_t [16]', but points into a larger buffer. Here it is used as base pointer to find the correct position in the larger buffer by adding 's->block_index[n] * 16' and thus as 'int16_t *'. This fixes clang's ubsan runtime error: index out of bounds for type 'int16_t [16]' Fixes: test_case.mp4 Found-by: Tyson Smith <twsmith@mozilla.com> Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>	9 years ago
Michael Niedermayer	70f13abb4f	avcodec/mpeg4videodec: also for empty partitioned slices Fixes assertion failure Fixes: id_acf3e47f864e1ee4c7b86c0653e0ff31e5bde56e.m4v Found-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Anton Khirnov	2c6811397b	lavc: add profiles to AVCodecDescriptor The profiles are a property of the codec, so it makes sense to export them through AVCodecDescriptors, not just the codec implementations.	9 years ago
Clément Bœsch	fb99ef0bd3	avcodec: use AV_OPT_TYPE_BOOL in a bunch of places	9 years ago
Michael Niedermayer	891dc8f875	avcodec/mpeg4videodec: Check available data before reading custom matrix Fixes: out of array read Fixes: 76c515fc3779d1b838667c61ea13ce92/asan_heap-oob_1fc0d07_8913_794a4629a264ebdb25b58d3a94ed1785.bit Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind 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
wm4	a383f226f0	lavc: move vdpau decoders under FF_API_VDPAU. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	9 years ago
Ronald S. Bultje	9468207e1c	mpeg4video: use ff_dlog instead of av_log under debug&FF_DEBUG_PTS. This fixes compilation with FF_API_UNUSED_MEMBERS=0.	9 years ago
Ronald S. Bultje	6471040f56	FF_OPT_TYPE_* -> AV_OPT_TYPE_*.	9 years ago
Vittorio Giovara	059a934806	lavc: Consistently prefix input buffer defines Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	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
Vittorio Giovara	7c6eb0a1b7	lavc: AV-prefix all codec flags Convert doxygen to multiline and express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	269a71b68a	avcodec/mpeg4videodec: Clarify the mpeg4_unpack_bframes reference. This should avoid misunderstandings like in Ticket4618 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	c06e556274	avcodec/mpeg4videodec: Check P cbpy Fixes undefined behavior Fixes: signal_sigsegv_c3097a_991_xtrem_e2_m64q15_a32sxx.3gp Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	261b715593	avcodec/mpeg4videodec: Mark static table as const Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	378a00087f	mpegvideo: Move tables to a separate file	10 years ago
Michael Niedermayer	d860084c50	avcodec/mpegvideo: Reset bitstream_buffer_size on allocation failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Anton Khirnov	6f57375d70	rl: Rename ff__rl() to ff_rl_()	10 years ago
Vittorio Giovara	9c1db92ad3	mpegvideo: Drop err_recognition It is just a duplicate of an AVCodecContext member so use it instead.	10 years ago
Vittorio Giovara	848e86f74d	mpegvideo: Drop flags and flags2 They are just duplicates of AVCodecContext members so use those instead.	10 years ago
Andreas Cadhalpun	b3408ae4c6	mpeg4videodec: only allow a positive length Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	9a0f60a0f8	avcodec/mpeg4videodec: Use check_marker() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	4ba662b032	avcodec/mpeg4videodec: Improve wording of the missing header warning messages Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	bca1577ed3	avcodec/mpeg4videodec: change log level to waning for incomplete header messages Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
wm4	13e4f2c7f7	mpeg4videodec: Remove useless messages They seem to sometimes trigger with old AVI files. They are just confusing, do not help anyone, and use sloppy language. Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Andreas Cadhalpun	71fa0aa085	mpeg4: suggest mpeg4_unpack_bframes bsf instead of avidemux/VirtualDub Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Andreas Cadhalpun	1f47c2399d	mpeg4: only show the divx_packed warning, when a packed frame is present Otherwise it is shown even after the file was fixed with avidemux, because the userdata string still ends with 'p'. Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Anton Khirnov	f771b3ab5d	avidec: do not export stream_codec_tag Handle its only existing use case internally.	10 years ago
Michael Niedermayer	10411afdff	avcodec/mpeg4videodec: replace some return -1 by more specific error codes Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	18fcdc0981	avcodec/mpeg4videodec: forward return code in ff_mpeg4_decode_picture_header() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Reimar Döffinger	46353759cb	mpeg4vdpau: Fix priv data size. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Anton Khirnov	7ea1b3472a	lavc: deprecate the use of AVCodecContext.time_base for decoding When decoding, this field holds the inverse of the framerate that can be written in the headers for some codecs. Using a field called 'time_base' for this is very misleading, as there are no timestamps associated with it. Furthermore, this field is used for a very different purpose during encoding. Add a new field, called 'framerate', to replace the use of time_base for decoding.	10 years ago
Michael Niedermayer	1360db7e88	avcodec/mpeg4videodec: fix 'libavcodec/mpeg4videodec.c:2762:22: warning: unused variable mpeg4_vdpau_class [-Wunused-const-variable]' Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago

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254 Commits (875f6955769bcb7caf083c1796ed6f3b2108c49e)