FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	5859b5b439	avcodec/lagarith: Detect end of input in lag_decode_line() loop Fixes: timeout Fixes: 2933/clusterfuzz-testcase-5124990208835584 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	948b54763b	avcodec/lagarith: Fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int' Fixes: 1764/clusterfuzz-testcase-minimized-5394243164045312 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	ed3c9b5b0d	avcodec/lagarith: Check scale_factor Fixes: 1425/clusterfuzz-testcase-minimized-6295712339853312 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	ddb2dd7edb	avcodec/lagarith: Fix runtime error: left shift of negative value -1 Fixes: 1424/clusterfuzz-testcase-minimized-6088327159611392 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
Ronald S. Bultje	081c21ca55	lagarith: assign correct per-thread value to LagarithContext::avctx. This fixes race conditions reported by tsan in fate-lagarith. The races were because each thread's LagarithContext::avctx was set to the first thread's AVCodecContext.	8 years ago
Diego Biurrun	a25dac976a	Use bitstream_init8() where appropriate	8 years ago
James Almer	47f212329e	huffyuvdsp: move functions only used by huffyuv from lossless_videodsp Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
James Almer	5ac1dd8e23	lossless_videodsp: move shared functions from huffyuvdsp Several codecs other than huffyuv use them. Signed-off-by: James Almer <jamrial@gmail.com>	8 years ago
Alexandra Hájková	6fad5abcad	lagarith: Convert to the new bitstream reader	8 years ago
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	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>	10 years ago
Michael Niedermayer	35dcc8a040	avcodec/lagarith: fix integer overflow Fixes: asan_heap-oob_1bf48fa_2513_lag-yuy2.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	e981de81fe	avcodec/lagarith: fix chroma plane width & height Fixes out of array read Fixes: asan_heap-oob_1bf48fa_2513_lag-yuy2.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	0d439fbede	dsputil: Split off HuffYUV decoding bits into their own context Also shorten HuffYUV context member names to avoid clutter.	11 years ago
Diego Biurrun	4f4840377f	lagarith: Fix typo in printf format string libavcodec/lagarith.c:671:16: warning: '#' flag used with ‘%u’ gnu_printf format [-Wformat]	11 years ago
Diego Biurrun	cc8163e1a3	avcodec: more correct printf specifiers	11 years ago
Anton Khirnov	4c3e1956ee	lagarith: reallocate rgb_planes when needed Fixes invalid writes on pixel format changes. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org	11 years ago
Kostya Shishkov	2f97094608	lagarith: do not call simd functions on unaligned lines They end up overwriting past the line end. Partially based on a patch by Michael Niedermayer <michaelni@gmx.at> Bug-Id: vlc/9700 Signed-off-by: Luca Barbato <lu_zero@gentoo.org> Signed-off-by: Anton Khirnov <anton@khirnov.net>	11 years ago
Michael Niedermayer	61d43a2651	avcodec/lagarith: check and propagate return value from init_get_bits8() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	afd1245433	avcodec/lagarith: use init_get_bits8() Suggested-by: Reimar Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	6f1b296771	avcodec/lagarith: reenable buggy lag_decode_zero_run_line() This is to prevent regressions in case the old code was able to partly decode frames (no way to say without a testcase) Add a memset to prevent use of uninitialized memory until we have a testcase and can test/fix it Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	e80aa47abf	avcodec/lagarith: fix init_get_bits() size in lag_decode_arith_plane() untested due to lack of sample Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	3410122c68	avcodec/lagarith: fix src/src_size for esc_count < 8 untested due to lack of sample Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	100a54da52	avcodec/lagarith: disable lag_decode_zero_run_line() and ask for a sample The code seems to have never been tested fixing it should be quite easy but needs a sample/testcase Fixes use of uninitialized memory Fixes: msan_uninit-mem_7f9a862dfabf_413_2889_assassin_OL.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Michael Niedermayer	45f0623ae3	avcodec/lagarith: check scaled probabilities Prevents infinite loop Fixes Ticket2988 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Carl Eugen Hoyos	f381dc1d61	Support decoding of Lagarith frame type FRAME_SOLID_COLOR. Fixes bug 459.	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
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Paul B Mahol	c4274d118b	lagarith: return more meaningful error codes Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Carl Eugen Hoyos	40297a8bdb	Support solid gray frames when decoding Lagarith. Fixes bug 431.	12 years ago
Diego Biurrun	511cf612ac	miscellaneous typo fixes	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
Michael Niedermayer	9eef41b848	lagarith: always allocate for 4 planes. Fixes out of array accesses Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	2d71f31df2	lag_read_prob_header: fix out of array access Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Michael Niedermayer	b631e4ed64	lagarith: check count before writing zeros. Fixes CVE-2012-2793 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Anton Khirnov <anton@khirnov.net>	12 years ago
Michael Niedermayer	2b3b52d519	lagarith: fix alignment on buffers passed into prediction dsp code. This should fix issues with direct rendering Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Hendrik Leppkes	f9150c8ac0	lagarith: frame multithreading About 2x speedup going from 1 to 2 threads. 1.7s to 0.85s on foreman CIF. Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Ronald S. Bultje	7191e1c490	lagarith: fix color plane inversion for YUY2 output.	13 years ago
Ronald S. Bultje	98d0d19208	lagarith: pad RGB buffer by 1 byte. For left HFYU prediction, we predict from the buffer buf+1 using 8- or 16-byte reads. This means that aligning the buffer by 16 bytes is in itself not sufficient, because if the width itself is 16- or 8-byte aligned, the buffer will not be padded, and thus a read of size 16 at buf+1 will overflow boundaries at the right edge. Padding the buffer by 1 byte is sufficient to not overflow its boundaries. Fixes bug 342.	13 years ago
Lou Logan	6851130fd6	cosmetics: minor libavcodec spelling errors Also update some common misspelled words in patcheck Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Hendrik Leppkes	f6943f2379	lagarith: frame multithreading Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Carl Eugen Hoyos	eae77f4631	Fix lagarith YUY2 output.	13 years ago
Kostya Shishkov	464e9ab011	lagarith: add YUY2 decoding support Unlike other variants, for YUY2 we need to use different prediction: * on line 0 for luma we should left predict starting from the second pixel * on line 1 we should left predict first 4 pixels for luma and 2 for chroma * median prediction employed here is taken directly from HuffYUV	13 years ago
Carl Eugen Hoyos	58637a0b24	Support decoding unaligned rgb24 lagarith. Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>	13 years ago
Kostya Shishkov	1fdb5649d9	lagarith: make offset array type unsigned This is logical and also fixes checking for the fourth plane offset.	13 years ago
Carl Eugen Hoyos	8cb9f99e9f	Support decoding unaligned rgb24 lagarith. Fixes ticket #1214.	13 years ago
Michael Niedermayer	83c7803f55	lagarith: check count before writing zeros. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago

1 2

93 Commits (dced1f6cdfe479965898bed3cb5219d2ddbb0ad9)