2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
23 * common internal api header.
32 #ifndef attribute_used
33 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
34 # define attribute_used __attribute__((used))
36 # define attribute_used
41 #define M_PI 3.14159265358979323846
45 #define INT16_MIN (-0x7fff-1)
49 #define INT16_MAX 0x7fff
53 #define INT32_MIN (-0x7fffffff-1)
57 #define INT32_MAX 0x7fffffff
61 #define UINT32_MAX 0xffffffff
65 #define INT64_MIN (-0x7fffffffffffffffLL-1)
69 #define INT64_MAX INT64_C(9223372036854775807)
73 #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
77 # if INT_MAX != 2147483647
84 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
88 #include "intreadwrite.h"
93 # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
101 # define snprintf _snprintf
102 # define vsnprintf _vsnprintf
104 #endif /* !__MINGW32__ */
106 #ifdef USE_FASTMEMCPY
107 # include "libvo/fastmemcpy.h"
108 # define memcpy(a,b,c) fast_memcpy(a,b,c)
111 // Use rip-relative addressing if compiling PIC code on x86-64.
112 #if defined(__MINGW32__) || defined(__CYGWIN__) || \
113 defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
114 # if defined(ARCH_X86_64) && defined(PIC)
115 # define MANGLE(a) "_" #a"(%%rip)"
117 # define MANGLE(a) "_" #a
120 # if defined(ARCH_X86_64) && defined(PIC)
121 # define MANGLE(a) #a"(%%rip)"
122 # elif defined(CONFIG_DARWIN)
123 # define MANGLE(a) "_" #a
125 # define MANGLE(a) #a
131 #if !defined(DEBUG) && !defined(NDEBUG)
138 # define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
140 # define dprintf(pctx, ...)
143 #define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
147 extern const uint32_t ff_inverse[256];
149 #if defined(ARCH_X86)
150 # define FASTDIV(a,b) \
155 :"=d"(ret),"=a"(dmy)\
156 :"1"(a),"g"(ff_inverse[b])\
160 #elif defined(ARCH_ARMV4L)
161 # define FASTDIV(a,b) \
165 "umull %1, %0, %2, %3"\
166 :"=&r"(ret),"=&r"(dmy)\
167 :"r"(a),"r"(ff_inverse[b])\
171 #elif defined(CONFIG_FASTDIV)
172 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
174 # define FASTDIV(a,b) ((a)/(b))
177 extern const uint8_t ff_sqrt_tab[128];
179 static inline int ff_sqrt(int a)
184 if(a<128) return ff_sqrt_tab[a];
186 for(s=30; s>=0; s-=2){
197 #if defined(ARCH_X86)
198 #define MASK_ABS(mask, level)\
203 : "+a" (level), "=&d" (mask)\
206 #define MASK_ABS(mask, level)\
208 level= (level^mask)-mask;
212 #define COPY3_IF_LT(x,y,a,b,c,d)\
218 : "+&r" (x), "+&r" (a), "+r" (c)\
219 : "r" (y), "r" (b), "r" (d)\
222 #define COPY3_IF_LT(x,y,a,b,c,d)\
230 /* avoid usage of various functions */
232 #define malloc please_use_av_malloc
234 #define free please_use_av_free
236 #define realloc please_use_av_realloc
238 #define time time_is_forbidden_due_to_security_issues
240 #define rand rand_is_forbidden_due_to_state_trashing_use_av_random
242 #define srand srand_is_forbidden_due_to_state_trashing_use_av_init_random
244 #define random random_is_forbidden_due_to_state_trashing_use_av_random
246 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
248 #define strcat strcat_is_forbidden_due_to_security_issues_use_av_strlcat
250 #define exit exit_is_forbidden
251 #if !(defined(LIBAVFORMAT_BUILD) || defined(FRAMEHOOK_H))
253 #define printf please_use_av_log
255 #define fprintf please_use_av_log
258 #define CHECKED_ALLOCZ(p, size)\
260 p= av_mallocz(size);\
261 if(p==NULL && (size)!=0){\
268 /* XXX: add ISOC specific test to avoid specific BSD testing. */
269 /* better than nothing implementation. */
270 /* btw, rintf() is existing on fbsd too -- alex */
271 static av_always_inline long int lrintf(float x)
273 return (int)(rint(x));
275 #endif /* HAVE_LRINTF */
277 #endif /* INTERNAL_H */