/** * @file common.h * common internal api header. */ #ifndef COMMON_H #define COMMON_H #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) # define CONFIG_WIN32 #endif #ifndef M_PI #define M_PI 3.14159265358979323846 #endif #ifdef HAVE_AV_CONFIG_H /* only include the following when compiling package */ # include "config.h" # include <stdlib.h> # include <stdio.h> # include <string.h> # include <ctype.h> # include <limits.h> # ifndef __BEOS__ # include <errno.h> # else # include "berrno.h" # endif # include <math.h> # ifndef ENODATA # define ENODATA 61 # endif #include <stddef.h> #ifndef offsetof # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F)) #endif #define AVOPTION_CODEC_BOOL(name, help, field) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL } #define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval } #define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval } #define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval } #define AVOPTION_CODEC_STRING(name, help, field, str, val) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str } #define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \ { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL } #define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr } #define AVOPTION_END() AVOPTION_SUB(NULL) #endif /* HAVE_AV_CONFIG_H */ /* Suppress restrict if it was not defined in config.h. */ #ifndef restrict # define restrict #endif #ifndef always_inline #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0) # define always_inline __attribute__((always_inline)) inline #else # define always_inline inline #endif #endif #ifndef attribute_used #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0) # define attribute_used __attribute__((used)) #else # define attribute_used #endif #endif #ifndef attribute_unused #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0) # define attribute_unused __attribute__((unused)) #else # define attribute_unused #endif #endif #ifndef EMULATE_INTTYPES # include <inttypes.h> #else typedef signed char int8_t; typedef signed short int16_t; typedef signed int int32_t; typedef unsigned char uint8_t; typedef unsigned short uint16_t; typedef unsigned int uint32_t; # ifdef CONFIG_WIN32 typedef signed __int64 int64_t; typedef unsigned __int64 uint64_t; # else /* other OS */ typedef signed long long int64_t; typedef unsigned long long uint64_t; # endif /* other OS */ #endif /* HAVE_INTTYPES_H */ #ifndef INT16_MIN #define INT16_MIN (-0x7fff-1) #endif #ifndef INT16_MAX #define INT16_MAX 0x7fff #endif #ifndef INT64_MIN #define INT64_MIN (-0x7fffffffffffffffLL-1) #endif #ifndef INT64_MAX #define INT64_MAX int64_t_C(9223372036854775807) #endif #ifndef UINT64_MAX #define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF) #endif #ifdef EMULATE_FAST_INT /* note that we don't emulate 64bit ints */ typedef signed char int_fast8_t; typedef signed int int_fast16_t; typedef signed int int_fast32_t; typedef unsigned char uint_fast8_t; typedef unsigned int uint_fast16_t; typedef unsigned int uint_fast32_t; #endif #ifndef INT_BIT # if INT_MAX != 2147483647 # define INT_BIT 64 # else # define INT_BIT 32 # endif #endif #if defined(CONFIG_OS2) || defined(CONFIG_SUNOS) static inline float floorf(float f) { return floor(f); } #endif #ifdef CONFIG_WIN32 /* windows */ # if !defined(__MINGW32__) && !defined(__CYGWIN__) # define int64_t_C(c) (c ## i64) # define uint64_t_C(c) (c ## i64) # ifdef HAVE_AV_CONFIG_H # define inline __inline # endif # else # define int64_t_C(c) (c ## LL) # define uint64_t_C(c) (c ## ULL) # endif /* __MINGW32__ */ # ifdef HAVE_AV_CONFIG_H # ifdef _DEBUG # define DEBUG # endif # define snprintf _snprintf # define vsnprintf _vsnprintf # endif /* CONFIG_WIN32 end */ #elif defined (CONFIG_OS2) /* OS/2 EMX */ #ifndef int64_t_C #define int64_t_C(c) (c ## LL) #define uint64_t_C(c) (c ## ULL) #endif #ifdef HAVE_AV_CONFIG_H #ifdef USE_FASTMEMCPY #include "fastmemcpy.h" #endif #include <float.h> #endif /* HAVE_AV_CONFIG_H */ /* CONFIG_OS2 end */ #else /* unix */ #ifndef int64_t_C #define int64_t_C(c) (c ## LL) #define uint64_t_C(c) (c ## ULL) #endif #ifdef HAVE_AV_CONFIG_H # ifdef USE_FASTMEMCPY # include "fastmemcpy.h" # endif # endif /* HAVE_AV_CONFIG_H */ #endif /* !CONFIG_WIN32 && !CONFIG_OS2 */ #ifdef HAVE_AV_CONFIG_H # include "bswap.h" // Use rip-relative addressing if compiling PIC code on x86-64. # if defined(__MINGW32__) || defined(__CYGWIN__) || \ defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__)) # if defined(ARCH_X86_64) && defined(PIC) # define MANGLE(a) "_" #a"(%%rip)" # else # define MANGLE(a) "_" #a # endif # else # if defined(ARCH_X86_64) && defined(PIC) # define MANGLE(a) #a"(%%rip)" # else # define MANGLE(a) #a # endif # endif /* debug stuff */ # ifndef DEBUG # define NDEBUG # endif # include <assert.h> /* dprintf macros */ # if defined(CONFIG_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) inline void dprintf(const char* fmt,...) {} # else # ifdef DEBUG # define dprintf(fmt,...) av_log(NULL, AV_LOG_DEBUG, fmt, __VA_ARGS__) # else # define dprintf(fmt,...) # endif # endif /* !CONFIG_WIN32 */ # define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0) //rounded divison & shift #define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b)) /* assume b>0 */ #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b)) #define ABS(a) ((a) >= 0 ? (a) : (-(a))) #define FFMAX(a,b) ((a) > (b) ? (a) : (b)) #define FFMIN(a,b) ((a) > (b) ? (b) : (a)) extern const uint32_t inverse[256]; #if defined(ARCH_X86) || defined(ARCH_X86_64) # define FASTDIV(a,b) \ ({\ int ret,dmy;\ asm volatile(\ "mull %3"\ :"=d"(ret),"=a"(dmy)\ :"1"(a),"g"(inverse[b])\ );\ ret;\ }) #elif defined(CONFIG_FASTDIV) # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*inverse[b])>>32)) #else # define FASTDIV(a,b) ((a)/(b)) #endif /* define it to include statistics code (useful only for optimizing codec efficiency */ //#define STATS #ifdef STATS enum { ST_UNKNOWN, ST_DC, ST_INTRA_AC, ST_INTER_AC, ST_INTRA_MB, ST_INTER_MB, ST_MV, ST_NB, }; extern int st_current_index; extern unsigned int st_bit_counts[ST_NB]; extern unsigned int st_out_bit_counts[ST_NB]; void print_stats(void); #endif /* misc math functions */ extern const uint8_t ff_log2_tab[256]; static inline int av_log2(unsigned int v) { int n; n = 0; if (v & 0xffff0000) { v >>= 16; n += 16; } if (v & 0xff00) { v >>= 8; n += 8; } n += ff_log2_tab[v]; return n; } static inline int av_log2_16bit(unsigned int v) { int n; n = 0; if (v & 0xff00) { v >>= 8; n += 8; } n += ff_log2_tab[v]; return n; } /* median of 3 */ static inline int mid_pred(int a, int b, int c) { #if 0 int t= (a-b)&((a-b)>>31); a-=t; b+=t; b-= (b-c)&((b-c)>>31); b+= (a-b)&((a-b)>>31); return b; #else if(a>b){ if(c>b){ if(c>a) b=a; else b=c; } }else{ if(b>c){ if(c>a) b=c; else b=a; } } return b; #endif } static inline int clip(int a, int amin, int amax) { if (a < amin) return amin; else if (a > amax) return amax; else return a; } static inline int clip_uint8(int a) { if (a&(~255)) return (-a)>>31; else return a; } /* math */ extern const uint8_t ff_sqrt_tab[128]; int64_t ff_gcd(int64_t a, int64_t b); static inline int ff_sqrt(int a) { int ret=0; int s; int ret_sq=0; if(a<128) return ff_sqrt_tab[a]; for(s=15; s>=0; s--){ int b= ret_sq + (1<<(s*2)) + (ret<<s)*2; if(b<=a){ ret_sq=b; ret+= 1<<s; } } return ret; } /** * converts fourcc string to int */ static inline int ff_get_fourcc(const char *s){ assert( strlen(s)==4 ); return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24); } #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24)) #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24)) #if defined(ARCH_X86) || defined(ARCH_X86_64) #define MASK_ABS(mask, level)\ asm volatile(\ "cdq \n\t"\ "xorl %1, %0 \n\t"\ "subl %1, %0 \n\t"\ : "+a" (level), "=&d" (mask)\ ); #else #define MASK_ABS(mask, level)\ mask= level>>31;\ level= (level^mask)-mask; #endif #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT) #define COPY3_IF_LT(x,y,a,b,c,d)\ asm volatile (\ "cmpl %0, %3 \n\t"\ "cmovl %3, %0 \n\t"\ "cmovl %4, %1 \n\t"\ "cmovl %5, %2 \n\t"\ : "+r" (x), "+r" (a), "+r" (c)\ : "r" (y), "r" (b), "r" (d)\ ); #else #define COPY3_IF_LT(x,y,a,b,c,d)\ if((y)<(x)){\ (x)=(y);\ (a)=(b);\ (c)=(d);\ } #endif #if defined(ARCH_X86) || defined(ARCH_X86_64) #if defined(ARCH_X86_64) static inline uint64_t rdtsc(void) { uint64_t a, d; asm volatile( "rdtsc\n\t" : "=a" (a), "=d" (d) ); return (d << 32) | (a & 0xffffffff); } #else static inline long long rdtsc(void) { long long l; asm volatile( "rdtsc\n\t" : "=A" (l) ); return l; } #endif #define START_TIMER \ uint64_t tend;\ uint64_t tstart= rdtsc();\ #define STOP_TIMER(id) \ tend= rdtsc();\ {\ static uint64_t tsum=0;\ static int tcount=0;\ static int tskip_count=0;\ if(tcount<2 || tend - tstart < 8*tsum/tcount){\ tsum+= tend - tstart;\ tcount++;\ }else\ tskip_count++;\ if(256*256*256*64%(tcount+tskip_count)==0){\ av_log(NULL, AV_LOG_DEBUG, "%Ld dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\ }\ } #else #define START_TIMER #define STOP_TIMER(id) {} #endif /* avoid usage of various functions */ #define malloc please_use_av_malloc #define free please_use_av_free #define realloc please_use_av_realloc #define time time_is_forbidden_due_to_security_issues #define rand rand_is_forbidden_due_to_state_trashing #define srand srand_is_forbidden_due_to_state_trashing #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf #define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H)) #define printf please_use_av_log #define fprintf please_use_av_log #endif #define CHECKED_ALLOCZ(p, size)\ {\ p= av_mallocz(size);\ if(p==NULL && (size)!=0){\ perror("malloc");\ goto fail;\ }\ } #endif /* HAVE_AV_CONFIG_H */ #endif /* COMMON_H */