22 #ifndef AVCODEC_MATHOPS_H 23 #define AVCODEC_MATHOPS_H 30 #define MAX_NEG_CROP 1024 44 # include "bfin/mathops.h" 56 # define MUL64(a,b) ((int64_t)(a) * (int64_t)(b)) 60 # define MULL(a,b,s) (MUL64(a, b) >> (s)) 65 return MUL64(a, b) >> 32;
71 return ((uint64_t)(a) * (uint64_t)(b))>>32;
76 # define MAC64(d, a, b) ((d) += MUL64(a, b)) 80 # define MLS64(d, a, b) ((d) -= MUL64(a, b)) 85 # define MAC16(rt, ra, rb) rt += (ra) * (rb) 90 # define MUL16(ra, rb) ((ra) * (rb)) 94 # define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb)) 99 #define mid_pred mid_pred 120 unsigned shift = 8 *
sizeof(int) - bits;
121 union {
unsigned u;
int s; } v = { (unsigned) val << shift };
129 return (val << ((8 *
sizeof(
int)) - bits)) >> ((8 *
sizeof(int)) -
bits);
134 #define COPY3_IF_LT(x, y, a, b, c, d)\ 143 #define MASK_ABS(mask, level) do { \ 144 mask = level >> 31; \ 145 level = (level ^ mask) - mask; \ 150 # define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s))) 154 # define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s))) 159 # define PACK_2U8(a,b) (((a) << 8) | (b)) 162 # define PACK_4U8(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) 165 # define PACK_2U16(a,b) (((a) << 16) | (b)) 169 # define PACK_2U8(a,b) (((b) << 8) | (a)) 172 # define PACK_4U8(a,b,c,d) (((d) << 24) | ((c) << 16) | ((b) << 8) | (a)) 175 # define PACK_2U16(a,b) (((b) << 16) | (a)) 180 # define PACK_2S8(a,b) PACK_2U8((a)&255, (b)&255) 183 # define PACK_4S8(a,b,c,d) PACK_4U8((a)&255, (b)&255, (c)&255, (d)&255) 186 # define PACK_2S16(a,b) PACK_2U16((a)&0xffff, (b)&0xffff) 190 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a) * ff_inverse[b]) >> 32)) 198 else if (a < (1 << 12)) b =
ff_sqrt_tab[a >> 4] >> 2;
200 else if (a < (1 << 14)) b =
ff_sqrt_tab[a >> 6] >> 1;
205 unsigned int c = a >> (s + 2);
210 return b - (a < b *
b);
const uint8_t ff_zigzag_scan[16]
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]