22 #ifndef AVCODEC_MATHOPS_H 23 #define AVCODEC_MATHOPS_H 30 #define MAX_NEG_CROP 1024 43 # include "bfin/mathops.h" 55 # define MUL64(a,b) ((int64_t)(a) * (int64_t)(b)) 59 # define MULL(a,b,s) (MUL64(a, b) >> (s)) 64 return MUL64(a, b) >> 32;
70 return ((uint64_t)(a) * (uint64_t)(b))>>32;
75 # define MAC64(d, a, b) ((d) += MUL64(a, b)) 79 # define MLS64(d, a, b) ((d) -= MUL64(a, b)) 84 # define MAC16(rt, ra, rb) rt += (ra) * (rb) 89 # define MUL16(ra, rb) ((ra) * (rb)) 93 # define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb)) 98 #define mid_pred mid_pred 102 int t= (a-
b)&((a-b)>>31);
105 b-= (b-c)&((b-c)>>31);
106 b+= (a-
b)&((a-b)>>31);
129 unsigned shift = 8 *
sizeof(int) - bits;
130 union {
unsigned u;
int s; } v = { (unsigned) val << shift };
138 return (val << ((8 *
sizeof(
int)) - bits)) >> ((8 *
sizeof(int)) -
bits);
143 #define COPY3_IF_LT(x, y, a, b, c, d)\ 152 #define MASK_ABS(mask, level) do { \ 153 mask = level >> 31; \ 154 level = (level ^ mask) - mask; \ 159 # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s))) 163 # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s))) 168 # define PACK_2U8(a,b) (((a) << 8) | (b)) 171 # define PACK_4U8(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) 174 # define PACK_2U16(a,b) (((a) << 16) | (b)) 178 # define PACK_2U8(a,b) (((b) << 8) | (a)) 181 # define PACK_4U8(a,b,c,d) (((d) << 24) | ((c) << 16) | ((b) << 8) | (a)) 184 # define PACK_2U16(a,b) (((b) << 16) | (a)) 189 # define PACK_2S8(a,b) PACK_2U8((a)&255, (b)&255) 192 # define PACK_4S8(a,b,c,d) PACK_4U8((a)&255, (b)&255, (c)&255, (d)&255) 195 # define PACK_2S16(a,b) PACK_2U16((a)&0xffff, (b)&0xffff) 199 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a) * ff_inverse[b]) >> 32)) 207 else if (a < (1 << 12)) b =
ff_sqrt_tab[a >> 4] >> 2;
209 else if (a < (1 << 14)) b =
ff_sqrt_tab[a >> 6] >> 1;
214 unsigned int c = a >> (s + 2);
219 return b - (a < b *
b);
static int8_t ff_u8_to_s8(uint8_t a)
static av_const unsigned zero_extend(unsigned val, unsigned bits)
const uint32_t ff_inverse[257]
const uint8_t ff_sqrt_tab[256]
static av_always_inline unsigned UMULH(unsigned a, unsigned b)
static av_const unsigned int ff_sqrt(unsigned int a)
const uint8_t ff_crop_tab[256+2 *MAX_NEG_CROP]
const uint8_t ff_zigzag_direct[64]
static av_always_inline int MULH(int a, int b)
static av_const int sign_extend(int val, unsigned bits)
common internal and external API header
const uint8_t ff_reverse[256]