3 * common internal api header.
10 #define M_PI 3.14159265358979323846
13 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
17 #ifdef HAVE_AV_CONFIG_H
18 /* only include the following when compiling package */
39 # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
42 #define AVOPTION_CODEC_BOOL(name, help, field) \
43 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL }
44 #define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \
45 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval }
46 #define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \
47 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval }
48 #define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \
49 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval }
50 #define AVOPTION_CODEC_STRING(name, help, field, str, val) \
51 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str }
52 #define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \
53 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL }
54 #define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr }
55 #define AVOPTION_END() AVOPTION_SUB(NULL)
57 #endif /* HAVE_AV_CONFIG_H */
59 /* Suppress restrict if it was not defined in config.h. */
65 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
66 # define always_inline __attribute__((always_inline)) inline
68 # define always_inline inline
72 #ifndef attribute_used
73 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
74 # define attribute_used __attribute__((used))
76 # define attribute_used
80 #ifndef attribute_unused
81 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
82 # define attribute_unused __attribute__((unused))
84 # define attribute_unused
88 #ifndef EMULATE_INTTYPES
89 # include <inttypes.h>
91 typedef signed char int8_t;
92 typedef signed short int16_t;
93 typedef signed int int32_t;
94 typedef unsigned char uint8_t;
95 typedef unsigned short uint16_t;
96 typedef unsigned int uint32_t;
97 typedef signed long long int64_t;
98 typedef unsigned long long uint64_t;
99 #endif /* EMULATE_INTTYPES */
118 #define PRIdFAST16 PRId32
122 #define PRIdFAST32 PRId32
126 #define INT16_MIN (-0x7fff-1)
130 #define INT16_MAX 0x7fff
134 #define INT32_MIN (-0x7fffffff-1)
138 #define INT32_MAX 0x7fffffff
142 #define UINT32_MAX 0xffffffff
146 #define INT64_MIN (-0x7fffffffffffffffLL-1)
150 #define INT64_MAX int64_t_C(9223372036854775807)
154 #define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
157 #ifdef EMULATE_FAST_INT
158 typedef signed char int_fast8_t;
159 typedef signed int int_fast16_t;
160 typedef signed int int_fast32_t;
161 typedef unsigned char uint_fast8_t;
162 typedef unsigned int uint_fast16_t;
163 typedef unsigned int uint_fast32_t;
164 typedef uint64_t uint_fast64_t;
168 # if INT_MAX != 2147483647
179 # if !defined(__MINGW32__) && !defined(__CYGWIN__)
180 # define int64_t_C(c) (c ## i64)
181 # define uint64_t_C(c) (c ## i64)
183 # ifdef HAVE_AV_CONFIG_H
184 # define inline __inline
188 # define int64_t_C(c) (c ## LL)
189 # define uint64_t_C(c) (c ## ULL)
190 # endif /* __MINGW32__ */
192 # ifdef HAVE_AV_CONFIG_H
197 # define snprintf _snprintf
198 # define vsnprintf _vsnprintf
206 /* __MINGW32__ end */
207 #elif defined (CONFIG_OS2)
211 #define int64_t_C(c) (c ## LL)
212 #define uint64_t_C(c) (c ## ULL)
215 #ifdef HAVE_AV_CONFIG_H
217 #ifdef USE_FASTMEMCPY
218 #include "fastmemcpy.h"
223 #endif /* HAVE_AV_CONFIG_H */
231 #define int64_t_C(c) (c ## LL)
232 #define uint64_t_C(c) (c ## ULL)
235 #ifdef HAVE_AV_CONFIG_H
237 # ifdef USE_FASTMEMCPY
238 # include "fastmemcpy.h"
240 # endif /* HAVE_AV_CONFIG_H */
242 #endif /* !__MINGW32__ && !CONFIG_OS2 */
244 #ifdef HAVE_AV_CONFIG_H
246 #if defined(__MINGW32__) && !defined(BUILD_AVUTIL) && defined(BUILD_SHARED_AV)
247 # define FF_IMPORT_ATTR __declspec(dllimport)
249 # define FF_IMPORT_ATTR
255 // Use rip-relative addressing if compiling PIC code on x86-64.
256 # if defined(__MINGW32__) || defined(__CYGWIN__) || \
257 defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
258 # if defined(ARCH_X86_64) && defined(PIC)
259 # define MANGLE(a) "_" #a"(%%rip)"
261 # define MANGLE(a) "_" #a
264 # if defined(ARCH_X86_64) && defined(PIC)
265 # define MANGLE(a) #a"(%%rip)"
266 # elif defined(CONFIG_DARWIN)
267 # define MANGLE(a) "_" #a
269 # define MANGLE(a) #a
275 # if !defined(DEBUG) && !defined(NDEBUG)
282 # define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
284 # define dprintf(fmt,...)
291 # define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
293 //rounded divison & shift
294 #define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
296 #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
297 #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
299 #define FFMAX(a,b) ((a) > (b) ? (a) : (b))
300 #define FFMIN(a,b) ((a) > (b) ? (b) : (a))
302 extern const uint32_t inverse[256];
304 #if defined(ARCH_X86) || defined(ARCH_X86_64)
305 # define FASTDIV(a,b) \
310 :"=d"(ret),"=a"(dmy)\
311 :"1"(a),"g"(inverse[b])\
315 #elif defined(CONFIG_FASTDIV)
316 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*inverse[b])>>32))
318 # define FASTDIV(a,b) ((a)/(b))
321 /* misc math functions */
322 extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
324 static inline int av_log2(unsigned int v)
329 if (v & 0xffff0000) {
342 static inline int av_log2_16bit(unsigned int v)
357 static inline int mid_pred(int a, int b, int c)
360 int t= (a-b)&((a-b)>>31);
363 b-= (b-c)&((b-c)>>31);
364 b+= (a-b)&((a-b)>>31);
384 * clip a signed integer value into the amin-amax range
385 * @param a value to clip
386 * @param amin minimum value of the clip range
387 * @param amax maximum value of the clip range
388 * @return cliped value
390 static inline int clip(int a, int amin, int amax)
392 if (a < amin) return amin;
393 else if (a > amax) return amax;
398 * clip a signed integer value into the 0-255 range
399 * @param a value to clip
400 * @return cliped value
402 static inline uint8_t clip_uint8(int a)
404 if (a&(~255)) return (-a)>>31;
409 extern FF_IMPORT_ATTR const uint8_t ff_sqrt_tab[128];
411 int64_t ff_gcd(int64_t a, int64_t b);
413 static inline int ff_sqrt(int a)
419 if(a<128) return ff_sqrt_tab[a];
421 for(s=15; s>=0; s--){
422 int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
432 * converts fourcc string to int
434 static inline int ff_get_fourcc(const char *s){
435 assert( strlen(s)==4 );
437 return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
440 #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
441 #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
444 #if defined(ARCH_X86) || defined(ARCH_X86_64)
445 #define MASK_ABS(mask, level)\
450 : "+a" (level), "=&d" (mask)\
453 #define MASK_ABS(mask, level)\
455 level= (level^mask)-mask;
458 #define GET_UTF8(val, GET_BYTE, ERROR)\
461 int ones= 7 - av_log2(val ^ 255);\
466 int tmp= GET_BYTE - 128;\
469 val= (val<<6) + tmp;\
473 #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
474 #define COPY3_IF_LT(x,y,a,b,c,d)\
480 : "+r" (x), "+r" (a), "+r" (c)\
481 : "r" (y), "r" (b), "r" (d)\
484 #define COPY3_IF_LT(x,y,a,b,c,d)\
492 #if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC)
493 #if defined(ARCH_X86_64)
494 static inline uint64_t read_time(void)
497 asm volatile( "rdtsc\n\t"
500 return (d << 32) | (a & 0xffffffff);
502 #elif defined(ARCH_X86)
503 static inline long long read_time(void)
506 asm volatile( "rdtsc\n\t"
511 #else //FIXME check ppc64
512 static inline uint64_t read_time(void)
514 uint32_t tbu, tbl, temp;
516 /* from section 2.2.1 of the 32-bit PowerPC PEM */
517 __asm__ __volatile__(
524 : "=r"(tbl), "=r"(tbu), "=r"(temp)
528 return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
532 #define START_TIMER \
534 uint64_t tstart= read_time();\
536 #define STOP_TIMER(id) \
539 static uint64_t tsum=0;\
540 static int tcount=0;\
541 static int tskip_count=0;\
542 if(tcount<2 || tend - tstart < 8*tsum/tcount){\
543 tsum+= tend - tstart;\
547 if(256*256*256*64%(tcount+tskip_count)==0){\
548 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
553 #define STOP_TIMER(id) {}
556 /* avoid usage of various functions */
557 #define malloc please_use_av_malloc
558 #define free please_use_av_free
559 #define realloc please_use_av_realloc
560 #define time time_is_forbidden_due_to_security_issues
561 #define rand rand_is_forbidden_due_to_state_trashing
562 #define srand srand_is_forbidden_due_to_state_trashing
563 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
564 #define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
565 #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
566 #define printf please_use_av_log
567 #define fprintf please_use_av_log
570 #define CHECKED_ALLOCZ(p, size)\
572 p= av_mallocz(size);\
573 if(p==NULL && (size)!=0){\
580 /* XXX: add ISOC specific test to avoid specific BSD testing. */
581 /* better than nothing implementation. */
582 /* btw, rintf() is existing on fbsd too -- alex */
583 static always_inline long int lrintf(float x)
590 : "=m" (i) : "t" (x) : "st"
594 /* XXX: incorrect, but make it compile */
595 return (int)(x + (x < 0 ? -0.5 : 0.5));
596 # endif /* ARCH_X86 */
598 return (int)(rint(x));
599 #endif /* __MINGW32__ */
601 #endif /* HAVE_LRINTF */
603 #endif /* HAVE_AV_CONFIG_H */
605 #endif /* COMMON_H */