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comparison libavutil/internal.h @ 9:ea1ba68cf0ed

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update to match api changes + add sscc produced source
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 05 Jun 2013 14:43:26 +0200
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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
23 * common internal API header
24 */
25
26 #ifndef AVUTIL_INTERNAL_H
27 #define AVUTIL_INTERNAL_H
28
29 #if !defined(DEBUG) && !defined(NDEBUG)
30 # define NDEBUG
31 #endif
32
33 #include <limits.h>
34 #include <stdint.h>
35 #include <stddef.h>
36 #include <assert.h>
37 #include "config.h"
38 #include "attributes.h"
39 #include "timer.h"
40
41
42
43 #ifndef INT16_MIN
44 #define INT16_MIN (-0x7fff - 1)
45 #endif
46
47 #ifndef INT16_MAX
48 #define INT16_MAX 0x7fff
49 #endif
50
51 #ifndef INT32_MIN
52 #define INT32_MIN (-0x7fffffff - 1)
53 #endif
54
55 #ifndef INT32_MAX
56 #define INT32_MAX 0x7fffffff
57 #endif
58
59 #ifndef UINT32_MAX
60 #define UINT32_MAX 0xffffffff
61 #endif
62
63 #ifndef INT64_MIN
64 #define INT64_MIN (-0x7fffffffffffffffLL - 1)
65 #endif
66
67 #ifndef INT64_MAX
68 #define INT64_MAX INT64_C(9223372036854775807)
69 #endif
70
71 #ifndef UINT64_MAX
72 #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
73 #endif
74
75 #ifndef INT_BIT
76 # define INT_BIT (CHAR_BIT * sizeof(int))
77 #endif
78
79 #ifndef offsetof
80 # define offsetof(T, F) ((unsigned int)((char *)&((T *)0)->F))
81 #endif
82
83 /* Use to export labels from asm. */
84 #define LABEL_MANGLE(a) #a
85 #define LOCAL_MANGLE(a) #a
86 #define MANGLE(a) #a
87
88 // Use rip-relative addressing if compiling PIC code on x86-64.
89 // #if ARCH_X86_64 && defined(PIC)
90 // # define LOCAL_MANGLE(a) #a "(%%rip)"
91 // #else
92 // # define LOCAL_MANGLE(a) #a
93 // #endif
94 //
95 // #define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
96
97 /* debug stuff */
98
99 /* dprintf macros */
100 #ifdef DEBUG
101 # define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
102 #else
103 # define dprintf(pctx, ...)
104 #endif
105
106 #define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
107
108 /* math */
109
110
111 /* avoid usage of dangerous/inappropriate system functions */
112 // #undef malloc
113 // #define malloc please_use_av_malloc
114 // #undef free
115 // #define free please_use_av_free
116 #undef realloc
117 #define realloc please_use_av_realloc
118 #undef time
119 #define time time_is_forbidden_due_to_security_issues
120 #undef rand
121 #define rand rand_is_forbidden_due_to_state_trashing_use_av_lfg_get
122 #undef srand
123 #define srand srand_is_forbidden_due_to_state_trashing_use_av_lfg_init
124 #undef random
125 #define random random_is_forbidden_due_to_state_trashing_use_av_lfg_get
126 #undef sprintf
127 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
128 //#undef exit
129 //#define exit exit_is_forbidden
130 #ifndef LIBAVFORMAT_BUILD
131
132 #undef puts
133 #define puts please_use_av_log_instead_of_puts
134 #undef perror
135 #define perror please_use_av_log_instead_of_perror
136 #endif
137
138 #define FF_ALLOC_OR_GOTO(p, size, label)\
139 {\
140 p = av_malloc(size);\
141 if (p == NULL && (size) != 0) {\
142 av_log(AV_LOG_ERROR, "Cannot allocate memory.\n");\
143 goto label;\
144 }\
145 }
146
147 #define FF_ALLOCZ_OR_GOTO(p, size, label)\
148 {\
149 p = av_mallocz(size);\
150 if (p == NULL && (size) != 0) {\
151 av_log(AV_LOG_ERROR, "Cannot allocate memory.\n");\
152 goto label;\
153 }\
154 }
155
156
157 /**
158 * Returns NULL if CONFIG_SMALL is true, otherwise the argument
159 * without modification. Used to disable the definition of strings
160 * (for example AVCodec long_names).
161 */
162 #if CONFIG_SMALL
163 # define NULL_IF_CONFIG_SMALL(x) NULL
164 #else
165 # define NULL_IF_CONFIG_SMALL(x) x
166 #endif
167
168 #endif /* AVUTIL_INTERNAL_H */