FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	cce3e0a49f	Move av_fast_{m,re}alloc from lavc to lavu.	11 years ago
Martin Storsjö	d433e1aefa	mem: Make av_strdup allocate using av_realloc This makes sure that pointers from av_strdup are reallocable, which is used in av_dict_set if the AV_DICT_APPEND flag is set. Nothing should rely on pointers from av_strdup being aligned. Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Martin Storsjö	67e285ceca	mem: Handle av_reallocp(..., 0) properly Previously this did a double free (and returned an error). Reported-by: Justin Ruggles Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Luca Barbato	3feb3d6ce4	mem: Introduce av_reallocp	11 years ago
Diego Biurrun	c3e6e8f06c	mem: Do not check unsigned values for negative size	11 years ago
Diego Biurrun	b634b36fce	mem: Improve documentation wording and spelling	11 years ago
Michael Niedermayer	c94f9e8542	avutil/mem: Fix flipped condition Fixes return code and later null pointer dereference Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	fbc472da29	avutil/mem: simplify av_reallocp_array() by using av_realloc_f() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Martin Storsjö	fc962d4e7a	mem: Add av_realloc_array and av_reallocp_array These help avoiding overflows and simplify error handling. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Stefano Sabatini	e3984166a4	lavu/mem: add av_dynarray2_add() Based on a patch by Clément Bœsch. See thread: From: Clément Bœsch <ubitux@gmail.com> Subject: [FFmpeg-devel] [PATCH 1/5] lavu: add av_dynarray_alloc_elem(). Date: Sun, 14 Apr 2013 03:07:54 +0200	12 years ago
Stefano Sabatini	84be806982	lavu: define FF_MEMORY_POISON and use it Allow single-place definition of constant used to fill poisoned memory.	12 years ago
Stefano Sabatini	ee9794ed20	lavu/mem: fix potential int overflow and crash in av_dynarray_add() Also extend documentation accordingly.	12 years ago
Michael Niedermayer	89b5039ff2	avutil/mem: add av_memdup() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Stefano Sabatini	1c1a2d1319	lavu/mem: remove redundant comment from av_dynarray_add() The function is documented in mem.h.	12 years ago
Fabrizio Gennari	91b747ac78	mem: Fix usage of memalign() on DJGPP. Credits to Khusraw of bttr-software.de forum. Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>	12 years ago
Anton Khirnov	f935aca44c	av_memcpy_backptr: avoid an infinite loop for back = 0 CC:libav-stable@libav.org	12 years ago
Michael Niedermayer	2c21d34ea4	avutil/mem: do a small set of checks for memalign hack before freeing. These can detect some kinds of memory and or pointer corruptions Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	58f30175e1	mem: minor simplification of the alignment hack code Idea-by: wanzhang Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	cb45553f57	Remove pointless #undefs of previously forbidden functions.	12 years ago
Mans Rullgard	4a606c830a	av_memcpy_backptr: optimise some special cases - Add special cases for offsets of 2, 3, or 4 bytes. This means the offset is always >4 in the generic case, allowing 32-bit copies to be used there. - Don't use memcpy() for sizes less than 16 bytes. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Diego Biurrun	5bac2d0c30	avutil: Move memcpy_backptr() to mem.c The function is used elsewhere and does not belong with the LZO code.	12 years ago
Diego Biurrun	5532cf3178	avutil/mem: K&R formatting cosmetics	12 years ago
Martin Storsjö	620b1e7e98	mem: Don't abort on av_malloc(0) in debug mode This makes the behaviour consistent between debug and release mode. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Clément Bœsch	7c84e7d337	mem: heap memory poisoning. Enable it by default with FATE. limitation: not random, and not supported with realloc.	13 years ago
Ronald S. Bultje	be1a839ca6	mem: add support for _aligned_malloc() as found on Windows The check uses check_func_header, since this function is conditionally available depending on the targeted MSVCRT version. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Reimar Döffinger	1a65d50ee7	mem.c: fix wrong comment. Overwriting the av_malloc etc. functions is not easily possible anymore, even for systems that support overriding symbols in shared libraries in principle. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Martin Storsjö	14f063d294	mem: Consistently return NULL for av_malloc(0) Plain POSIX malloc(0) is allowed to return either NULL or a non-NULL pointer. The calling code should be ready to handle a NULL return as a correct return (instead of a failure) if the size to allocate was 0 - this makes sure the condition is handled in a consistent way across platforms. This also avoids calling posix_memalign(&ptr, 32, 0) on OS X, which returns an invalid pointer (a non-NULL pointer that causes crashes when passed to av_free). Abort in debug mode, to help track down issues related to incorrect handling of this case. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Michael Niedermayer	5a8e994287	mem: add av_max_alloc() to limit the maximum amount that may be allocated in one piece Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Hanspeter Niederstrasser	bed04e2b03	Correct use of OSX to Mac OS X and properly format yasm providers on Mac OS X Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	fc11927890	mem: fix memalign hack av_realloc() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Nicolas George	5cd754bca2	Introduce av_realloc_f. av_realloc_f helps avoiding memory-leaks in typical uses of realloc. Signed-off-by: Nicolas George <nicolas.george@normalesup.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Laurent Aimar	ccecab4a0d	Add av_calloc() helper. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	a39bd458a0	mem: Trying to workaround posix_memalign() bug on OSX This patch is based on a patch by John Stebbins Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Stefano Sabatini	6b4c0be558	mem: define the MAX_MALLOC_SIZE constant and use it in place of INT_MAX This makes re-dimensionating the constant simpler, since now it is defined only in one place.	14 years ago
Ivan Kalvachev	518cdff81f	Fix posix_memalign() usage when libavutil is compiled outside FFmpeg. To use posix_memalign() "#define _XOPEN_SOURCE 600" have to be defined. FFmpeg configure defines it from the command line through config.mak, but when libavutil is used outside of FFmpeg the define is missing. Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Michael Niedermayer	08675bb399	mem: Choose alignment at compile time depending on AVX enabledness. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Michael Niedermayer	c8981edd90	Only add 1 byte to av_malloc(0) when it actually returned NULL Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Michael Niedermayer	91ff05f6ac	Make av_realloc(0) behave like our av_malloc(0) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Anton Khirnov	35ceaa7376	Move ff_dynarray_add to lavu and make it public.	14 years ago
Michael Niedermayer	5a36783bc4	Fix all malloc(0) issues Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Vitor Sessak	13dfce3d44	Increase alignment of av_malloc() as needed by AVX ASM. Signed-off-by: Reinhard Tartler <siretart@tauware.de>	14 years ago
Anton Khirnov	490a022d86	lavu: remove misc disabled cruft	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Clément Bœsch	0c8eb72ec5	Avoid pointless check before calling free Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `dc75d6dbf2`)	14 years ago
Clément Bœsch	dc75d6dbf2	Avoid pointless check before calling free Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Michael Niedermayer	b47541c7a3	Change the argument of memory allocation functions from unsigned int to size_t with the next major bump in libavutil. Originally committed as revision 25871 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	4ae406856f	Add --malloc-prefix to apply a prefix to malloc, free etc This makes it easy to use a replacement allocator instead of the system default one. Originally committed as revision 21509 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Patrik Kullman	a90de11dba	Check return value of posix_memalign and explicitly set pointer to NULL if it fails, patch by Patrik Kullman, patrik yes nu. Originally committed as revision 17495 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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95 Commits (74906d3727ec3bd9b7b28dfa7a98ff6e8cf8b6d7)