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
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
Anton Khirnov
f935aca44c
av_memcpy_backptr: avoid an infinite loop for back = 0
...
CC:libav-stable@libav.org
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
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
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
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
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
Diego Biurrun
bad5537e2c
Use full internal pathname in doxygen @file directives.
...
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
89c9ff504b
spelling/grammar/consistency review part I
...
Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
1e60e93355
10l: Add #undefs for system free/malloc/realloc, which must be used here.
...
Originally committed as revision 16794 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
77652a6aaf
C files should #include the header files of the same name.
...
Originally committed as revision 16792 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
692c315e3a
Do not #include common.h without necessity.
...
This eliminates the need to work around common.h overriding certain system
functions which are required in this header.
Originally committed as revision 16776 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
dfcb6b56f9
Directly #include a bunch of indirectly #included headers.
...
Originally committed as revision 16748 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
...
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Aurelien Jacobs
b250f9c66d
Change semantic of CONFIG_*, HAVE_* and ARCH_*.
...
They are now always defined to either 0 or 1.
Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Ramiro Polla
1f91cdce0b
Use posix_memalign() if available.
...
Originally committed as revision 16488 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Michael Niedermayer
19757f6169
indent
...
Originally committed as revision 13251 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Michael Niedermayer
fdf35f265a
make av_strdup(NULL) return NULL
...
Originally committed as revision 13250 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Michael Niedermayer
ed0d3048c0
Merge declaratio and initialization.
...
Originally committed as revision 12677 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Michael Niedermayer
11362767b8
Merge declaration and initialization.
...
Originally committed as revision 12676 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
2cab640129
typo fixes
...
Originally committed as revision 12428 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
7ce6892373
misc spelling fixes
...
Originally committed as revision 12410 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
avcoder
90d30570d8
Avoid void*-arithmetic.
...
Patch by mvplayer: ffmpeg gmail com
Originally committed as revision 11932 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Panagiotis Issaris
d7f654692a
Move unaltered av_freep() comments to the header file.
...
Originally committed as revision 8253 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Panagiotis Issaris
f690ee715d
Move unaltered av_free() comments to the header file.
...
Originally committed as revision 8252 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Panagiotis Issaris
d6def91a3b
Move unaltered av_realloc() comments to the header file.
...
Originally committed as revision 8251 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Panagiotis Issaris
9a07029916
Move unaltered av_malloc() comments to the header file.
...
Originally committed as revision 8250 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
eafcac6ac8
cosmetics: Fix another common typo, dependAnt --> dependEnt.
...
Originally committed as revision 8114 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Måns Rullgård
9ddbcae667
rename MEMALIGN_HACK to CONFIG_MEMALIGN_HACK, use common code in configure
...
Originally committed as revision 7025 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Diego Biurrun
b78e7197a8
Change license headers to say 'FFmpeg' instead of 'this program/this library'
...
and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Luca Barbato
79e47000c8
move memory functions from avcodec to avutil
...
Originally committed as revision 6330 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago
Michael Niedermayer
0a7c36af54
revert aligned realloc() changesm this should be identical to r5784
...
Originally committed as revision 6008 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Michael Niedermayer
732692d94c
trying to fix av_realloc()
...
Originally committed as revision 5996 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Michael Niedermayer
75c413ae77
align av_realloc()
...
Originally committed as revision 5992 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Luca Abeni
cea8f6f323
Move av_malloc(), av_realloc(), and av_free() from libavcodec to libavutil
...
Originally committed as revision 5784 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Diego Biurrun
da2e9781bb
spelling typo
...
Originally committed as revision 5633 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Herve W
a949360163
* Allocating 16 bytes more for the MEMALIGN_HACK is enough. There's no
...
need for 1 more extra byte.
* Checking whether the to be allocated size is larger than INT_MAX,
doesn't assure that size+16 bytes for the MEMALIGN_HACK isn't larger
than INT_MAX.
* malloc might return NULL. Checking for it before using that pointer
seems like a good idea.
Patch by Herve W. H PPP O PPP W PPP aka PPP V+ffmpeg AH gmail PPP com
Original thread:
Date: Jun 29, 2006 1:21 PM
Subject: [Ffmpeg-devel] [PATCH] minor improvements to libavcodec/mem.c
Originally committed as revision 5559 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago