projects / libav.git / blame
| Commit | Line | Data |
|---|---|---|
| 792098c2 PI |
1 | /* |
| 2 | * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | /** | |
| 22 | * @file mem.h | |
| 23 | * Memory handling functions. | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef AV_MEM_H | |
| 27 | #define AV_MEM_H | |
| 28 | ||
| 29 | #ifdef __GNUC__ | |
| 30 | #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n))) | |
| 31 | #else | |
| 32 | #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v | |
| 33 | #endif | |
| 34 | ||
| 35 | /** | |
| 36 | * Memory allocation of size byte with alignment suitable for all | |
| 37 | * memory accesses (including vectors if available on the | |
| 38 | * CPU). av_malloc(0) must return a non NULL pointer. | |
| 39 | */ | |
| 40 | void *av_malloc(unsigned int size); | |
| 41 | ||
| 42 | /** | |
| 43 | * av_realloc semantics (same as glibc): if ptr is NULL and size > 0, | |
| 44 | * identical to malloc(size). If size is zero, it is identical to | |
| 45 | * free(ptr) and NULL is returned. | |
| 46 | */ | |
| 47 | void *av_realloc(void *ptr, unsigned int size); | |
| 48 | ||
| 49 | /** | |
| 50 | * Free memory which has been allocated with av_malloc(z)() or av_realloc(). | |
| 51 | * NOTE: ptr = NULL is explicetly allowed | |
| 52 | * Note2: it is recommended that you use av_freep() instead | |
| 53 | */ | |
| 54 | void av_free(void *ptr); | |
| 55 | ||
| 56 | void *av_mallocz(unsigned int size); | |
| 57 | char *av_strdup(const char *s); | |
| 58 | ||
| 59 | /** | |
| 60 | * Frees memory and sets the pointer to NULL. | |
| 61 | * @param ptr pointer to the pointer which should be freed | |
| 62 | */ | |
| 63 | void av_freep(void *ptr); | |
| 64 | ||
| 65 | #endif /* AV_MEM_H */ |