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.
29
#ifndef attribute_used
30
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
31
# define attribute_used __attribute__((used))
33
# define attribute_used
37
#ifndef attribute_unused
39
# define attribute_unused __attribute__((unused))
41
# define attribute_unused
46
#define M_PI 3.14159265358979323846
50
#define INT16_MIN (-0x7fff-1)
54
#define INT16_MAX 0x7fff
58
#define INT32_MIN (-0x7fffffff-1)
62
#define INT32_MAX 0x7fffffff
66
#define UINT32_MAX 0xffffffff
70
#define INT64_MIN (-0x7fffffffffffffffLL-1)
74
#define INT64_MAX INT64_C(9223372036854775807)
78
#define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
82
# if INT_MAX != 2147483647
89
#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
93
#include "intreadwrite.h"
98
# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
106
# define snprintf _snprintf
107
# define vsnprintf _vsnprintf
114
/* __MINGW32__ end */
115
#elif defined (CONFIG_OS2)
120
#endif /* !__MINGW32__ && CONFIG_OS2 */
122
#ifdef USE_FASTMEMCPY
123
# include "libvo/fastmemcpy.h"
126
// Use rip-relative addressing if compiling PIC code on x86-64.
127
#if defined(__MINGW32__) || defined(__CYGWIN__) || \
128
defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
129
# if defined(ARCH_X86_64) && defined(PIC)
130
# define MANGLE(a) "_" #a"(%%rip)"
132
# define MANGLE(a) "_" #a
135
# if defined(ARCH_X86_64) && defined(PIC)
136
# define MANGLE(a) #a"(%%rip)"
137
# elif defined(CONFIG_DARWIN)
138
# define MANGLE(a) "_" #a
140
# define MANGLE(a) #a
146
#if !defined(DEBUG) && !defined(NDEBUG)
153
# define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
155
# define dprintf(fmt,...)
158
#define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
162
extern const uint32_t ff_inverse[256];
164
#if defined(ARCH_X86)
165
# define FASTDIV(a,b) \
170
:"=d"(ret),"=a"(dmy)\
171
:"1"(a),"g"(ff_inverse[b])\
175
#elif defined(ARCH_ARMV4L)
176
# define FASTDIV(a,b) \
180
"umull %1, %0, %2, %3"\
181
:"=&r"(ret),"=&r"(dmy)\
182
:"r"(a),"r"(ff_inverse[b])\
186
#elif defined(CONFIG_FASTDIV)
187
# define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
189
# define FASTDIV(a,b) ((a)/(b))
192
extern const uint8_t ff_sqrt_tab[128];
194
static inline int ff_sqrt(int a)
200
if(a<128) return ff_sqrt_tab[a];
202
for(s=15; s>=0; s--){
203
int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
212
#if defined(ARCH_X86)
213
#define MASK_ABS(mask, level)\
218
: "+a" (level), "=&d" (mask)\
221
#define MASK_ABS(mask, level)\
223
level= (level^mask)-mask;
227
#define COPY3_IF_LT(x,y,a,b,c,d)\
233
: "+r" (x), "+r" (a), "+r" (c)\
234
: "r" (y), "r" (b), "r" (d)\
237
#define COPY3_IF_LT(x,y,a,b,c,d)\
245
/* avoid usage of various functions */
246
#define malloc please_use_av_malloc
247
#define free please_use_av_free
248
#define realloc please_use_av_realloc
249
#define time time_is_forbidden_due_to_security_issues
250
#define rand rand_is_forbidden_due_to_state_trashing
251
#define srand srand_is_forbidden_due_to_state_trashing
252
#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
253
#define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
254
#if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
255
#define printf please_use_av_log
256
#define fprintf please_use_av_log
259
#define CHECKED_ALLOCZ(p, size)\
261
p= av_mallocz(size);\
262
if(p==NULL && (size)!=0){\
269
/* XXX: add ISOC specific test to avoid specific BSD testing. */
270
/* better than nothing implementation. */
271
/* btw, rintf() is existing on fbsd too -- alex */
272
static av_always_inline long int lrintf(float x)
279
: "=m" (i) : "t" (x) : "st"
283
/* XXX: incorrect, but make it compile */
284
return (int)(x + (x < 0 ? -0.5 : 0.5));
285
# endif /* ARCH_X86_32 */
287
return (int)(rint(x));
288
#endif /* __MINGW32__ */
290
#endif /* HAVE_LRINTF */
292
#endif /* INTERNAL_H */