*/
/**
- * @file internal.h
- * common internal api header.
+ * @file libavutil/internal.h
+ * common internal API header
*/
#ifndef AVUTIL_INTERNAL_H
# define NDEBUG
#endif
+#include <limits.h>
#include <stdint.h>
#include <stddef.h>
#include <assert.h>
+#include "config.h"
#include "common.h"
+#include "mem.h"
+#include "timer.h"
#ifndef attribute_align_arg
#if (!defined(__ICC) || __ICC > 1100) && AV_GCC_VERSION_AT_LEAST(4,2)
#endif
#ifndef INT_BIT
-# if INT_MAX != 2147483647
-# define INT_BIT 64
-# else
-# define INT_BIT 32
-# endif
+# define INT_BIT (CHAR_BIT * sizeof(int))
#endif
#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
# define PIC
#endif
-#include "config.h"
-#include "intreadwrite.h"
-#include "bswap.h"
-
#ifndef offsetof
# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
#endif
// Use rip-relative addressing if compiling PIC code on x86-64.
-#if defined(ARCH_X86_64) && defined(PIC)
+#if ARCH_X86_64 && defined(PIC)
# define LOCAL_MANGLE(a) #a "(%%rip)"
#else
# define LOCAL_MANGLE(a) #a
extern const uint32_t ff_inverse[256];
-#if defined(ARCH_X86)
+#if ARCH_X86
# define FASTDIV(a,b) \
({\
int ret,dmy;\
);\
ret;\
})
-#elif defined(HAVE_ARMV6)
+#elif HAVE_ARMV6 && HAVE_INLINE_ASM
static inline av_const int FASTDIV(int a, int b)
{
int r, t;
: "=&r"(r), "=&r"(t) : "r"(a), "r"(b), "r"(ff_inverse));
return r;
}
-#elif defined(ARCH_ARM)
+#elif ARCH_ARM && HAVE_INLINE_ASM
static inline av_const int FASTDIV(int a, int b)
{
int r, t;
: "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b]));
return r;
}
-#elif defined(CONFIG_FASTDIV)
+#elif CONFIG_FASTDIV
# define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
#else
# define FASTDIV(a,b) ((a)/(b))
extern const uint8_t ff_sqrt_tab[256];
-static inline int av_log2_16bit(unsigned int v);
-
static inline av_const unsigned int ff_sqrt(unsigned int a)
{
unsigned int b;
if(a<255) return (ff_sqrt_tab[a+1]-1)>>4;
else if(a<(1<<12)) b= ff_sqrt_tab[a>>4 ]>>2;
-#ifndef CONFIG_SMALL
+#if !CONFIG_SMALL
else if(a<(1<<14)) b= ff_sqrt_tab[a>>6 ]>>1;
else if(a<(1<<16)) b= ff_sqrt_tab[a>>8 ] ;
#endif
return b - (a<b*b);
}
-#if defined(ARCH_X86)
+#if ARCH_X86
#define MASK_ABS(mask, level)\
__asm__ volatile(\
"cltd \n\t"\
level= (level^mask)-mask;
#endif
-#ifdef HAVE_CMOV
+#if HAVE_CMOV
#define COPY3_IF_LT(x,y,a,b,c,d)\
__asm__ volatile (\
"cmpl %0, %3 \n\t"\
}
#endif
-/* avoid usage of various functions */
+/* avoid usage of dangerous/inappropriate system functions */
#undef malloc
#define malloc please_use_av_malloc
#undef free
#undef time
#define time time_is_forbidden_due_to_security_issues
#undef rand
-#define rand rand_is_forbidden_due_to_state_trashing_use_av_random
+#define rand rand_is_forbidden_due_to_state_trashing_use_av_lfg_get
#undef srand
-#define srand srand_is_forbidden_due_to_state_trashing_use_av_init_random
+#define srand srand_is_forbidden_due_to_state_trashing_use_av_lfg_init
#undef random
-#define random random_is_forbidden_due_to_state_trashing_use_av_random
+#define random random_is_forbidden_due_to_state_trashing_use_av_lfg_get
#undef sprintf
#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
#undef strcat
#define exit exit_is_forbidden
#ifndef LIBAVFORMAT_BUILD
#undef printf
-#define printf please_use_av_log
+#define printf please_use_av_log_instead_of_printf
#undef fprintf
-#define fprintf please_use_av_log
+#define fprintf please_use_av_log_instead_of_fprintf
#undef puts
-#define puts please_use_av_log
+#define puts please_use_av_log_instead_of_puts
#undef perror
#define perror please_use_av_log_instead_of_perror
#endif
}\
}
-#ifndef HAVE_LLRINT
+#if defined(__ICC) || defined(__SUNPRO_C)
+ #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
+ #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
+#elif defined(__GNUC__)
+ #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
+ #define DECLARE_ASM_CONST(n,t,v) static const t v attribute_used __attribute__ ((aligned (n)))
+#elif defined(_MSC_VER)
+ #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
+ #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+#elif HAVE_INLINE_ASM
+ #error The asm code needs alignment, but we do not know how to do it for this compiler.
+#else
+ #define DECLARE_ALIGNED(n,t,v) t v
+ #define DECLARE_ASM_CONST(n,t,v) static const t v
+#endif
+
+
+#if !HAVE_LLRINT
static av_always_inline av_const long long llrint(double x)
{
return rint(x);
}
#endif /* HAVE_LLRINT */
-#ifndef HAVE_LRINT
+#if !HAVE_LRINT
static av_always_inline av_const long int lrint(double x)
{
return rint(x);
}
#endif /* HAVE_LRINT */
-#ifndef HAVE_LRINTF
+#if !HAVE_LRINTF
static av_always_inline av_const long int lrintf(float x)
{
return (int)(rint(x));
}
#endif /* HAVE_LRINTF */
-#ifndef HAVE_ROUND
+#if !HAVE_ROUND
static av_always_inline av_const double round(double x)
{
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
}
#endif /* HAVE_ROUND */
-#ifndef HAVE_ROUNDF
+#if !HAVE_ROUNDF
static av_always_inline av_const float roundf(float x)
{
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
}
#endif /* HAVE_ROUNDF */
+#if !HAVE_TRUNCF
+static av_always_inline av_const float truncf(float x)
+{
+ return (x > 0) ? floor(x) : ceil(x);
+}
+#endif /* HAVE_TRUNCF */
+
+/**
+ * Returns NULL if CONFIG_SMALL is true, otherwise the argument
+ * without modification. Used to disable the definition of strings
+ * (for example AVCodec long_names).
+ */
+#if CONFIG_SMALL
+# define NULL_IF_CONFIG_SMALL(x) NULL
+#else
+# define NULL_IF_CONFIG_SMALL(x) x
+#endif
+
#endif /* AVUTIL_INTERNAL_H */
projects / frescor / ffmpeg.git / blobdiff