FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	2c0559d5e2	mpegvideo: increase buffer sizes. Fixes buffer overflow Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	59a4b73531	pthread/mpegvideo: detect and block attempts to init frames after setup. This fixes race conditions that ultimately lead to memory corruption. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Janne Grunau	5ab506a5c8	MPV: set reference frame pointers to NULL when allocation of dummy pictures fails	13 years ago
Janne Grunau	7b60799aa8	MPV: always mark dummy frames as reference If the dummy frame are not created from a reference frame they could be deleted untimely resulting in multithreaded decoder waiting on the current frame to finish. Noticed by Ronald S. Bultje in the RV34 decoder with a broken file.	13 years ago
Ronald S. Bultje	c6ccb96bc9	mpeg4: report frame decoding completion at ff_MPV_frame_end(). Prevents hangs on corrupt input. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Diego Biurrun	47c0ac96aa	Replace AVFrame pointer casts by proper struct member accesses.	13 years ago
Martin Storsjö	efd29844eb	mpegvideo: Add ff_ prefix to nonstatic functions Signed-off-by: Martin Storsjö <martin@martin.st>	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
Martin Storsjö	e96b4a53df	vlc/rl: Add ff_ prefix to the nonstatic symbols Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Reimar Döffinger	3fe00cac71	Fix bitexact intra mismatch control. The DC coefficient should be included, too. This probably was missed because DC quantizer is always even for MPEG-1/2 but this function is also used for MPEG-4. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Reimar Döffinger	5338566eaf	mpegvideodec: minor simplifications. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Diego Biurrun	0144fe6995	Remove Sun medialib glue code. It is obscure, most likely unused and not bit-exact compared to libavcodec due to a different IDCT transform algorithm.	13 years ago
Michael Niedermayer	05ebe51e00	mpeg/h264: update thread context even if it is not initialized. Fixes decoding of Ticket952 Tested-by: Nicolas George <nicolas.george@normalesup.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	b2be1dabb1	mpegvideo: Draw edges based on the pictures linesize instead of the contexts. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
John Brooks	9b6aafba6c	mpegvideo: fix invalid memory access for small video dimensions When either video dimension is only one macroblock, subtractions based on v_edge_pos and the macroblock size may be negative. In that situation, an unsigned comparison isn't sufficent to test for MV overruns, because a limit of (unsigned)-1 will let any other value pass. Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Janne Grunau	3ab7700018	mpegvideo: claim ownership of referenced pictures Under certain conditions pictures could be released before they were returned with frame-threading. Broken mv computation in the upcoming rv34 frame-threading patch was caused by this. To prevent contexts from running out of available pictures the loop releasing "unused" pictures has to be run for B frames too.	13 years ago
Diego Biurrun	3dc99a18d4	cosmetics: drop some pointless parentheses	13 years ago
Janne Grunau	881a5e047d	mpegenc: use avctx->slices as number of slices Adds a new member to MpegEncContext to hold the number of used slice contexts. Fixes segfaults with '-threads 17 -thread_type slice' and fate-vsynth{1,2}-mpeg{2,4}thread{,_ilace} with --disable-pthreads.	13 years ago
Michael Niedermayer	b72544370a	mpegvideo: fix visualization buffer size. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Konstantin Todorov	c65dfac466	mpegvideo.c: K&R formatting and cosmetics. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Mans Rullgard	8400b126ac	avcodec: deprecate AVFrame.age This was intended as an optimisation for skipped blocks in MPEG2 P-frames and never used elsewhere. Removing this "optimisation" speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9). Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Michael Niedermayer	21270cffae	h263dec: Fix regression / crash with lowres. Fixes Ticket757 Bug Found by: ami_stuff Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	dcca7d66bd	Revert "mpegvideo: remove abort() in ff_find_unused_picture()" This reverts commit `4f820131fa`. It is better to abort() than to have remotly exploitable arbitrary code execution bugs. Even more so that this abort has never been triggered by any input people threw at it. If after more extensive testing its removial is found safe we can remove the abort() later.	13 years ago
Andrey Utkin	4f820131fa	mpegvideo: remove abort() in ff_find_unused_picture() Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	13 years ago
Diego Biurrun	58c42af722	doxygen: misc consistency, spelling and wording fixes	13 years ago
Dustin Brody	5b22d6e132	lavc: convert error_recognition to err_recognition. Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Diego Biurrun	ee41963f19	cosmetics: drop some completely pointless parentheses	13 years ago
Konstantin Todorov	4d9ec050a2	Code cleanup - mpegvideo.c - 500-1000line Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Konstantin Todorov	363114e813	mpegvideo.c: code cleanup - first 500 lines. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Justin Ruggles	560f773c7d	avcodec: change number of plane pointers from 4 to 8 at next major bump. Add AV_NUM_DATA_POINTERS to simplify the bump transition. This will allow for supporting more planar audio channels without having to allocate separate pointer arrays.	13 years ago
Michael Niedermayer	15a686b714	h263: make default color black, like flv Fixes Ticket126 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Justin Ruggles	f3a29b750a	avcodec: move some AVCodecContext fields to an internal struct. A new field, AVCodecContext.internal is used to hold a new struct AVCodecInternal, which has private fields that are not codec-specific and are used by general libavcodec functions. Moved internal_buffer, internal_buffer_count, and is_copy.	13 years ago
Sebastien Zwickert	ac3dbb4d58	hwaccel: OS X Video Decoder Acceleration (VDA) support. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	13 years ago
Michael Niedermayer	80f716cd45	mpeg4videodec: fix lml4 and frame threading without -vsync 0 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Sebastien Zwickert	d66ee6ac48	HWAccel: adds Video Decoder Acceleration (VDA) module for Mac OS X. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	fe906830fd	Revert "mpeg12: move closed_gop from MpegEncContext to Mpeg1Context" This reverts commit `3fc0830432`. The revert is done because the reasoning behind the commit was flawed, closed_gop is not mpeg1/2 specific. Conflicts: libavcodec/mpeg12.c libavcodec/mpeg12.h	13 years ago
Anton Khirnov	3fc0830432	mpeg12: move closed_gop from MpegEncContext to Mpeg1Context It's MPEG-1/2 specific.	13 years ago
Anton Khirnov	0842d58998	lavc: use avpriv_ prefix for ff_toupper4. It's used in lavf.	13 years ago
Anton Khirnov	773375c3d0	lavc: rename ff_find_start_code to avpriv_mpv_find_start_code It's used in lavf.	13 years ago
Michael Niedermayer	284aa07932	flv: Initialize initial frame to 16 Fixes Ticket563 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Steven Walters	27237d524e	w32threads: support for frame multithreading Replace our incomplete w32threads implementation with x264's pthreads w32threads wrapper. Relicensed to LGPL with kind permission by Pegasys Inc. Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Ronald S. Bultje	330deb7592	mpegvideo: set correct offset for edge emulation buffer. Using the old code, half of it was unused and the other half was too small for e.g. >8bpp interlaced data, causing random buffer overruns.	13 years ago
Ronald S. Bultje	0884dd5a1b	mpegvideo: fix position of bottom edge. It was wrong in colorspaces where horizontal and vertical chroma subsampling are not the same, e.g. 422.	13 years ago
Michael Niedermayer	7322483d72	mpegvideo: increase emu edge buffer size This fixes a crash with 422 H.264 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	2aaf32f52f	mpegvideo: support encoding with chroma intra tables that differ from luma. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Anton Khirnov	e5b29c1f6b	lavc: replace some deprecated FF__TYPE with AV_PICTURE_TYPE_	13 years ago
Diego Biurrun	95a06eb4d5	Fix assert() calls that need updates after FF_COMMON_FRAME macro elimination. This fixes build failures with -DDEBUG in CPPFLAGS.	13 years ago
Alberto Delmás	45ecda8554	Windows Media Image decoder (WMVP/WVP2) Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Baptiste Coudurier	6e7315f4a1	mpegvideo: Fix vshift vs hshift typo Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Mans Rullgard	c3027b4d2f	mpegvideo: initialise DSPContext in ff_dct_common_init() The functions and tables initialised in this function rely on an initialised DSPContext. Make sure they always have one. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago

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823 Commits (e4cc9f309e96a9145970989fd20394933923f574)