author | Wuzzy <Wuzzy2@mail.ru> |
Sat, 10 Feb 2018 22:02:08 +0100 | |
changeset 12966 | b543d767fed3 |
parent 7813 | 7ac83d79b897 |
permissions | -rw-r--r-- |
7813
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1 |
/* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
2 |
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
3 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
4 |
* This file is part of Libav. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
5 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
6 |
* Libav is free software; you can redistribute it and/or |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
7 |
* modify it under the terms of the GNU Lesser General Public |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
8 |
* License as published by the Free Software Foundation; either |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
9 |
* version 2.1 of the License, or (at your option) any later version. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
10 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
11 |
* Libav is distributed in the hope that it will be useful, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
14 |
* Lesser General Public License for more details. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
15 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
16 |
* You should have received a copy of the GNU Lesser General Public |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
17 |
* License along with Libav; if not, write to the Free Software |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
19 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
20 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
21 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
22 |
* @file |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
23 |
* memory handling functions |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
24 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
25 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
26 |
#ifndef AVUTIL_MEM_H |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
27 |
#define AVUTIL_MEM_H |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
28 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
29 |
#include <limits.h> |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
30 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
31 |
#include "attributes.h" |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
32 |
#include "avutil.h" |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
33 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
34 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
35 |
* @addtogroup lavu_mem |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
36 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
37 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
38 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
39 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
40 |
#if defined(__ICC) && __ICC < 1200 || defined(__SUNPRO_C) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
41 |
#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
42 |
#define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
43 |
#elif defined(__TI_COMPILER_VERSION__) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
44 |
#define DECLARE_ALIGNED(n,t,v) \ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
45 |
AV_PRAGMA(DATA_ALIGN(v,n)) \ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
46 |
t __attribute__((aligned(n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
47 |
#define DECLARE_ASM_CONST(n,t,v) \ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
48 |
AV_PRAGMA(DATA_ALIGN(v,n)) \ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
49 |
static const t __attribute__((aligned(n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
50 |
#elif defined(__GNUC__) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
51 |
#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
52 |
#define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
53 |
#elif defined(_MSC_VER) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
54 |
#define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
55 |
#define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
56 |
#else |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
57 |
#define DECLARE_ALIGNED(n,t,v) t v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
58 |
#define DECLARE_ASM_CONST(n,t,v) static const t v |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
59 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
60 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
61 |
#if AV_GCC_VERSION_AT_LEAST(3,1) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
62 |
#define av_malloc_attrib __attribute__((__malloc__)) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
63 |
#else |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
64 |
#define av_malloc_attrib |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
65 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
66 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
67 |
#if AV_GCC_VERSION_AT_LEAST(4,3) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
68 |
#define av_alloc_size(...) __attribute__((alloc_size(__VA_ARGS__))) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
69 |
#else |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
70 |
#define av_alloc_size(...) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
71 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
72 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
73 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
74 |
* Allocate a block of size bytes with alignment suitable for all |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
75 |
* memory accesses (including vectors if available on the CPU). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
76 |
* @param size Size in bytes for the memory block to be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
77 |
* @return Pointer to the allocated block, NULL if the block cannot |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
78 |
* be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
79 |
* @see av_mallocz() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
80 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
81 |
void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
82 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
83 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
84 |
* Helper function to allocate a block of size * nmemb bytes with |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
85 |
* using av_malloc() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
86 |
* @param nmemb Number of elements |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
87 |
* @param size Size of the single element |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
88 |
* @return Pointer to the allocated block, NULL if the block cannot |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
89 |
* be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
90 |
* @see av_malloc() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
91 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
92 |
av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t size) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
93 |
{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
94 |
if (size <= 0 || nmemb >= INT_MAX / size) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
95 |
return NULL; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
96 |
return av_malloc(nmemb * size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
97 |
} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
98 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
99 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
100 |
* Allocate or reallocate a block of memory. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
101 |
* If ptr is NULL and size > 0, allocate a new block. If |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
102 |
* size is zero, free the memory block pointed to by ptr. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
103 |
* @param ptr Pointer to a memory block already allocated with |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
104 |
* av_malloc(z)() or av_realloc() or NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
105 |
* @param size Size in bytes for the memory block to be allocated or |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
106 |
* reallocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
107 |
* @return Pointer to a newly reallocated block or NULL if the block |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
108 |
* cannot be reallocated or the function is used to free the memory block. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
109 |
* @see av_fast_realloc() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
110 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
111 |
void *av_realloc(void *ptr, size_t size) av_alloc_size(2); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
112 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
113 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
114 |
* Free a memory block which has been allocated with av_malloc(z)() or |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
115 |
* av_realloc(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
116 |
* @param ptr Pointer to the memory block which should be freed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
117 |
* @note ptr = NULL is explicitly allowed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
118 |
* @note It is recommended that you use av_freep() instead. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
119 |
* @see av_freep() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
120 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
121 |
void av_free(void *ptr); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
122 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
123 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
124 |
* Allocate a block of size bytes with alignment suitable for all |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
125 |
* memory accesses (including vectors if available on the CPU) and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
126 |
* zero all the bytes of the block. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
127 |
* @param size Size in bytes for the memory block to be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
128 |
* @return Pointer to the allocated block, NULL if it cannot be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
129 |
* @see av_malloc() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
130 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
131 |
void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
132 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
133 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
134 |
* Helper function to allocate a block of size * nmemb bytes with |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
135 |
* using av_mallocz() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
136 |
* @param nmemb Number of elements |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
137 |
* @param size Size of the single element |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
138 |
* @return Pointer to the allocated block, NULL if the block cannot |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
139 |
* be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
140 |
* @see av_mallocz() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
141 |
* @see av_malloc_array() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
142 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
143 |
av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
144 |
{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
145 |
if (size <= 0 || nmemb >= INT_MAX / size) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
146 |
return NULL; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
147 |
return av_mallocz(nmemb * size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
148 |
} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
149 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
150 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
151 |
* Duplicate the string s. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
152 |
* @param s string to be duplicated |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
153 |
* @return Pointer to a newly allocated string containing a |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
154 |
* copy of s or NULL if the string cannot be allocated. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
155 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
156 |
char *av_strdup(const char *s) av_malloc_attrib; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
157 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
158 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
159 |
* Free a memory block which has been allocated with av_malloc(z)() or |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
160 |
* av_realloc() and set the pointer pointing to it to NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
161 |
* @param ptr Pointer to the pointer to the memory block which should |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
162 |
* be freed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
163 |
* @see av_free() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
164 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
165 |
void av_freep(void *ptr); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
166 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
167 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
168 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
169 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
170 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
171 |
#endif /* AVUTIL_MEM_H */ |