3 * common internal api header.
9 #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
13 #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(EMULATE_INTTYPES)
14 # define EMULATE_INTTYPES
18 #define M_PI 3.14159265358979323846
21 #ifdef HAVE_AV_CONFIG_H
22 /* only include the following when compiling package */
43 # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
46 #define AVOPTION_CODEC_BOOL(name, help, field) \
47 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL }
48 #define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \
49 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval }
50 #define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \
51 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval }
52 #define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \
53 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval }
54 #define AVOPTION_CODEC_STRING(name, help, field, str, val) \
55 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str }
56 #define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \
57 { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL }
58 #define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr }
59 #define AVOPTION_END() AVOPTION_SUB(NULL)
61 #endif /* HAVE_AV_CONFIG_H */
63 /* Suppress restrict if it was not defined in config.h. */
69 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
70 # define always_inline __attribute__((always_inline)) inline
72 # define always_inline inline
76 #ifndef attribute_used
77 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
78 # define attribute_used __attribute__((used))
80 # define attribute_used
84 #ifndef attribute_unused
85 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
86 # define attribute_unused __attribute__((unused))
88 # define attribute_unused
92 #ifndef EMULATE_INTTYPES
93 # include <inttypes.h>
95 typedef signed char int8_t;
96 typedef signed short int16_t;
97 typedef signed int int32_t;
98 typedef unsigned char uint8_t;
99 typedef unsigned short uint16_t;
100 typedef unsigned int uint32_t;
103 typedef signed __int64 int64_t;
104 typedef unsigned __int64 uint64_t;
105 # else /* other OS */
106 typedef signed long long int64_t;
107 typedef unsigned long long uint64_t;
108 # endif /* other OS */
109 #endif /* EMULATE_INTTYPES */
128 #define PRIdFAST16 PRId32
132 #define PRIdFAST32 PRId32
136 #define INT16_MIN (-0x7fff-1)
140 #define INT16_MAX 0x7fff
144 #define INT32_MIN (-0x7fffffff-1)
148 #define INT32_MAX 0x7fffffff
152 #define UINT32_MAX 0xffffffff
156 #define INT64_MIN (-0x7fffffffffffffffLL-1)
160 #define INT64_MAX int64_t_C(9223372036854775807)
164 #define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
167 #ifdef EMULATE_FAST_INT
168 typedef signed char int_fast8_t;
169 typedef signed int int_fast16_t;
170 typedef signed int int_fast32_t;
171 typedef unsigned char uint_fast8_t;
172 typedef unsigned int uint_fast16_t;
173 typedef unsigned int uint_fast32_t;
174 typedef uint64_t uint_fast64_t;
178 # if INT_MAX != 2147483647
189 # if !defined(__MINGW32__) && !defined(__CYGWIN__)
190 # define int64_t_C(c) (c ## i64)
191 # define uint64_t_C(c) (c ## i64)
193 # ifdef HAVE_AV_CONFIG_H
194 # define inline __inline
198 # define int64_t_C(c) (c ## LL)
199 # define uint64_t_C(c) (c ## ULL)
200 # endif /* __MINGW32__ */
202 # ifdef HAVE_AV_CONFIG_H
207 # define snprintf _snprintf
208 # define vsnprintf _vsnprintf
216 /* CONFIG_WIN32 end */
217 #elif defined (CONFIG_OS2)
221 #define int64_t_C(c) (c ## LL)
222 #define uint64_t_C(c) (c ## ULL)
225 #ifdef HAVE_AV_CONFIG_H
227 #ifdef USE_FASTMEMCPY
228 #include "fastmemcpy.h"
233 #endif /* HAVE_AV_CONFIG_H */
241 #define int64_t_C(c) (c ## LL)
242 #define uint64_t_C(c) (c ## ULL)
245 #ifdef HAVE_AV_CONFIG_H
247 # ifdef USE_FASTMEMCPY
248 # include "fastmemcpy.h"
250 # endif /* HAVE_AV_CONFIG_H */
252 #endif /* !CONFIG_WIN32 && !CONFIG_OS2 */
254 #ifdef HAVE_AV_CONFIG_H
256 #if defined(__MINGW32__) && !defined(BUILD_AVUTIL) && defined(BUILD_SHARED_AV)
257 # define FF_IMPORT_ATTR __declspec(dllimport)
259 # define FF_IMPORT_ATTR
265 // Use rip-relative addressing if compiling PIC code on x86-64.
266 # if defined(__MINGW32__) || defined(__CYGWIN__) || \
267 defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
268 # if defined(ARCH_X86_64) && defined(PIC)
269 # define MANGLE(a) "_" #a"(%%rip)"
271 # define MANGLE(a) "_" #a
274 # if defined(ARCH_X86_64) && defined(PIC)
275 # define MANGLE(a) #a"(%%rip)"
276 # elif defined(CONFIG_DARWIN)
277 # define MANGLE(a) "_" #a
279 # define MANGLE(a) #a
285 # if !defined(DEBUG) && !defined(NDEBUG)
291 # if defined(CONFIG_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
293 inline void dprintf(const char* fmt,...) {}
298 # define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__)
300 # define dprintf(fmt,...)
303 # endif /* !CONFIG_WIN32 */
308 # define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
310 //rounded divison & shift
311 #define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
313 #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
314 #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
316 #define FFMAX(a,b) ((a) > (b) ? (a) : (b))
317 #define FFMIN(a,b) ((a) > (b) ? (b) : (a))
319 extern const uint32_t inverse[256];
321 #if defined(ARCH_X86) || defined(ARCH_X86_64)
322 # define FASTDIV(a,b) \
327 :"=d"(ret),"=a"(dmy)\
328 :"1"(a),"g"(inverse[b])\
332 #elif defined(CONFIG_FASTDIV)
333 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*inverse[b])>>32))
335 # define FASTDIV(a,b) ((a)/(b))
338 /* define it to include statistics code (useful only for optimizing
355 extern int st_current_index;
356 extern unsigned int st_bit_counts[ST_NB];
357 extern unsigned int st_out_bit_counts[ST_NB];
359 void print_stats(void);
362 /* misc math functions */
363 extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
365 static inline int av_log2(unsigned int v)
370 if (v & 0xffff0000) {
383 static inline int av_log2_16bit(unsigned int v)
398 static inline int mid_pred(int a, int b, int c)
401 int t= (a-b)&((a-b)>>31);
404 b-= (b-c)&((b-c)>>31);
405 b+= (a-b)&((a-b)>>31);
425 * clip a signed integer value into the amin-amax range
426 * @param a value to clip
427 * @param amin minimum value of the clip range
428 * @param amax maximum value of the clip range
429 * @return cliped value
431 static inline int clip(int a, int amin, int amax)
442 * clip a signed integer value into the 0-255 range
443 * @param a value to clip
444 * @return cliped value
446 static inline uint8_t clip_uint8(int a)
448 if (a&(~255)) return (-a)>>31;
453 extern FF_IMPORT_ATTR const uint8_t ff_sqrt_tab[128];
455 int64_t ff_gcd(int64_t a, int64_t b);
457 static inline int ff_sqrt(int a)
463 if(a<128) return ff_sqrt_tab[a];
465 for(s=15; s>=0; s--){
466 int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
476 * converts fourcc string to int
478 static inline int ff_get_fourcc(const char *s){
479 assert( strlen(s)==4 );
481 return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
484 #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
485 #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
488 #if defined(ARCH_X86) || defined(ARCH_X86_64)
489 #define MASK_ABS(mask, level)\
494 : "+a" (level), "=&d" (mask)\
497 #define MASK_ABS(mask, level)\
499 level= (level^mask)-mask;
503 #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
504 #define COPY3_IF_LT(x,y,a,b,c,d)\
510 : "+r" (x), "+r" (a), "+r" (c)\
511 : "r" (y), "r" (b), "r" (d)\
514 #define COPY3_IF_LT(x,y,a,b,c,d)\
522 #if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC)
523 #if defined(ARCH_X86_64)
524 static inline uint64_t read_time(void)
527 asm volatile( "rdtsc\n\t"
530 return (d << 32) | (a & 0xffffffff);
532 #elif defined(ARCH_X86)
533 static inline long long read_time(void)
536 asm volatile( "rdtsc\n\t"
541 #else //FIXME check ppc64
542 static inline uint64_t read_time(void)
544 uint32_t tbu, tbl, temp;
546 /* from section 2.2.1 of the 32-bit PowerPC PEM */
547 __asm__ __volatile__(
554 : "=r"(tbl), "=r"(tbu), "=r"(temp)
558 return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
562 #define START_TIMER \
564 uint64_t tstart= read_time();\
566 #define STOP_TIMER(id) \
569 static uint64_t tsum=0;\
570 static int tcount=0;\
571 static int tskip_count=0;\
572 if(tcount<2 || tend - tstart < 8*tsum/tcount){\
573 tsum+= tend - tstart;\
577 if(256*256*256*64%(tcount+tskip_count)==0){\
578 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
583 #define STOP_TIMER(id) {}
586 /* avoid usage of various functions */
587 #define malloc please_use_av_malloc
588 #define free please_use_av_free
589 #define realloc please_use_av_realloc
590 #define time time_is_forbidden_due_to_security_issues
591 #define rand rand_is_forbidden_due_to_state_trashing
592 #define srand srand_is_forbidden_due_to_state_trashing
593 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
594 #define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
595 #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
596 #define printf please_use_av_log
597 #define fprintf please_use_av_log
600 #define CHECKED_ALLOCZ(p, size)\
602 p= av_mallocz(size);\
603 if(p==NULL && (size)!=0){\
610 /* XXX: add ISOC specific test to avoid specific BSD testing. */
611 /* better than nothing implementation. */
612 /* btw, rintf() is existing on fbsd too -- alex */
613 static always_inline long int lrintf(float x)
620 : "=m" (i) : "t" (x) : "st"
624 /* XXX: incorrect, but make it compile */
625 return (int)(x + (x < 0 ? -0.5 : 0.5));
626 # endif /* ARCH_X86 */
628 return (int)(rint(x));
629 #endif /* CONFIG_WIN32 */
632 #ifndef _ISOC9X_SOURCE
633 #define _ISOC9X_SOURCE
636 #endif /* HAVE_LRINTF */
638 #endif /* HAVE_AV_CONFIG_H */
640 #endif /* COMMON_H */