?? predict.c
字號(hào):
static void predict_4x4_vr( uint8_t *src ){ const int lt = src[-1-FDEC_STRIDE]; PREDICT_4x4_LOAD_LEFT PREDICT_4x4_LOAD_TOP src[0*FDEC_STRIDE+0]= src[2*FDEC_STRIDE+1]= ( lt + t0 + 1 ) >> 1; src[0*FDEC_STRIDE+1]= src[2*FDEC_STRIDE+2]= ( t0 + t1 + 1 ) >> 1; src[0*FDEC_STRIDE+2]= src[2*FDEC_STRIDE+3]= ( t1 + t2 + 1 ) >> 1; src[0*FDEC_STRIDE+3]= ( t2 + t3 + 1 ) >> 1; src[1*FDEC_STRIDE+0]= src[3*FDEC_STRIDE+1]= ( l0 + 2 * lt + t0 + 2 ) >> 2; src[1*FDEC_STRIDE+1]= src[3*FDEC_STRIDE+2]= ( lt + 2 * t0 + t1 + 2 ) >> 2; src[1*FDEC_STRIDE+2]= src[3*FDEC_STRIDE+3]= ( t0 + 2 * t1 + t2 + 2) >> 2; src[1*FDEC_STRIDE+3]= ( t1 + 2 * t2 + t3 + 2 ) >> 2; src[2*FDEC_STRIDE+0]= ( lt + 2 * l0 + l1 + 2 ) >> 2; src[3*FDEC_STRIDE+0]= ( l0 + 2 * l1 + l2 + 2 ) >> 2;}static void predict_4x4_hd( uint8_t *src ){ const int lt= src[-1-1*FDEC_STRIDE]; PREDICT_4x4_LOAD_LEFT PREDICT_4x4_LOAD_TOP src[0*FDEC_STRIDE+0]= src[1*FDEC_STRIDE+2]= ( lt + l0 + 1 ) >> 1; src[0*FDEC_STRIDE+1]= src[1*FDEC_STRIDE+3]= ( l0 + 2 * lt + t0 + 2 ) >> 2; src[0*FDEC_STRIDE+2]= ( lt + 2 * t0 + t1 + 2 ) >> 2; src[0*FDEC_STRIDE+3]= ( t0 + 2 * t1 + t2 + 2 ) >> 2; src[1*FDEC_STRIDE+0]= src[2*FDEC_STRIDE+2]= ( l0 + l1 + 1 ) >> 1; src[1*FDEC_STRIDE+1]= src[2*FDEC_STRIDE+3]= ( lt + 2 * l0 + l1 + 2 ) >> 2; src[2*FDEC_STRIDE+0]= src[3*FDEC_STRIDE+2]= ( l1 + l2+ 1 ) >> 1; src[2*FDEC_STRIDE+1]= src[3*FDEC_STRIDE+3]= ( l0 + 2 * l1 + l2 + 2 ) >> 2; src[3*FDEC_STRIDE+0]= ( l2 + l3 + 1 ) >> 1; src[3*FDEC_STRIDE+1]= ( l1 + 2 * l2 + l3 + 2 ) >> 2;}static void predict_4x4_vl( uint8_t *src ){ PREDICT_4x4_LOAD_TOP PREDICT_4x4_LOAD_TOP_RIGHT src[0*FDEC_STRIDE+0]= ( t0 + t1 + 1 ) >> 1; src[0*FDEC_STRIDE+1]= src[2*FDEC_STRIDE+0]= ( t1 + t2 + 1 ) >> 1; src[0*FDEC_STRIDE+2]= src[2*FDEC_STRIDE+1]= ( t2 + t3 + 1 ) >> 1; src[0*FDEC_STRIDE+3]= src[2*FDEC_STRIDE+2]= ( t3 + t4 + 1 ) >> 1; src[2*FDEC_STRIDE+3]= ( t4 + t5 + 1 ) >> 1; src[1*FDEC_STRIDE+0]= ( t0 + 2 * t1 + t2 + 2 ) >> 2; src[1*FDEC_STRIDE+1]= src[3*FDEC_STRIDE+0]= ( t1 + 2 * t2 + t3 + 2 ) >> 2; src[1*FDEC_STRIDE+2]= src[3*FDEC_STRIDE+1]= ( t2 + 2 * t3 + t4 + 2 ) >> 2; src[1*FDEC_STRIDE+3]= src[3*FDEC_STRIDE+2]= ( t3 + 2 * t4 + t5 + 2 ) >> 2; src[3*FDEC_STRIDE+3]= ( t4 + 2 * t5 + t6 + 2 ) >> 2;}static void predict_4x4_hu( uint8_t *src ){ PREDICT_4x4_LOAD_LEFT src[0*FDEC_STRIDE+0]= ( l0 + l1 + 1 ) >> 1; src[0*FDEC_STRIDE+1]= ( l0 + 2 * l1 + l2 + 2 ) >> 2; src[0*FDEC_STRIDE+2]= src[1*FDEC_STRIDE+0]= ( l1 + l2 + 1 ) >> 1; src[0*FDEC_STRIDE+3]= src[1*FDEC_STRIDE+1]= ( l1 + 2*l2 + l3 + 2 ) >> 2; src[1*FDEC_STRIDE+2]= src[2*FDEC_STRIDE+0]= ( l2 + l3 + 1 ) >> 1; src[1*FDEC_STRIDE+3]= src[2*FDEC_STRIDE+1]= ( l2 + 2 * l3 + l3 + 2 ) >> 2; src[2*FDEC_STRIDE+3]= src[3*FDEC_STRIDE+1]= src[3*FDEC_STRIDE+0]= src[2*FDEC_STRIDE+2]= src[3*FDEC_STRIDE+2]= src[3*FDEC_STRIDE+3]= l3;}/**************************************************************************** * 8x8 prediction for intra luma block ****************************************************************************/#define SRC(x,y) src[(x)+(y)*FDEC_STRIDE]#define PL(y) \ edge[14-y] = (SRC(-1,y-1) + 2*SRC(-1,y) + SRC(-1,y+1) + 2) >> 2;#define PT(x) \ edge[16+x] = (SRC(x-1,-1) + 2*SRC(x,-1) + SRC(x+1,-1) + 2) >> 2;void x264_predict_8x8_filter( uint8_t *src, uint8_t edge[33], int i_neighbor, int i_filters ){ /* edge[7..14] = l7..l0 * edge[15] = lt * edge[16..31] = t0 .. t15 * edge[32] = t15 */ int have_lt = i_neighbor & MB_TOPLEFT; if( i_filters & MB_LEFT ) { edge[15] = (SRC(-1,0) + 2*SRC(-1,-1) + SRC(0,-1) + 2) >> 2; edge[14] = ((have_lt ? SRC(-1,-1) : SRC(-1,0)) + 2*SRC(-1,0) + SRC(-1,1) + 2) >> 2; PL(1) PL(2) PL(3) PL(4) PL(5) PL(6) edge[7] = (SRC(-1,6) + 3*SRC(-1,7) + 2) >> 2; } if( i_filters & MB_TOP ) { int have_tr = i_neighbor & MB_TOPRIGHT; edge[16] = ((have_lt ? SRC(-1,-1) : SRC(0,-1)) + 2*SRC(0,-1) + SRC(1,-1) + 2) >> 2; PT(1) PT(2) PT(3) PT(4) PT(5) PT(6) edge[23] = ((have_tr ? SRC(8,-1) : SRC(7,-1)) + 2*SRC(7,-1) + SRC(6,-1) + 2) >> 2; if( i_filters & MB_TOPRIGHT ) { if( have_tr ) { PT(8) PT(9) PT(10) PT(11) PT(12) PT(13) PT(14) edge[31] = edge[32] = (SRC(14,-1) + 3*SRC(15,-1) + 2) >> 2; } else { *(uint64_t*)(edge+24) = SRC(7,-1) * 0x0101010101010101ULL; edge[32] = SRC(7,-1); } } }}#undef PL#undef PT#define PL(y) \ UNUSED const int l##y = edge[14-y];#define PT(x) \ UNUSED const int t##x = edge[16+x];#define PREDICT_8x8_LOAD_TOPLEFT \ const int lt = edge[15];#define PREDICT_8x8_LOAD_LEFT \ PL(0) PL(1) PL(2) PL(3) PL(4) PL(5) PL(6) PL(7)#define PREDICT_8x8_LOAD_TOP \ PT(0) PT(1) PT(2) PT(3) PT(4) PT(5) PT(6) PT(7)#define PREDICT_8x8_LOAD_TOPRIGHT \ PT(8) PT(9) PT(10) PT(11) PT(12) PT(13) PT(14) PT(15)#define PREDICT_8x8_DC(v) \ int y; \ for( y = 0; y < 8; y++ ) { \ ((uint32_t*)src)[0] = \ ((uint32_t*)src)[1] = v; \ src += FDEC_STRIDE; \ }static void predict_8x8_dc_128( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_DC(0x80808080);}static void predict_8x8_dc_left( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_LEFT const uint32_t dc = ((l0+l1+l2+l3+l4+l5+l6+l7+4) >> 3) * 0x01010101; PREDICT_8x8_DC(dc);}static void predict_8x8_dc_top( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP const uint32_t dc = ((t0+t1+t2+t3+t4+t5+t6+t7+4) >> 3) * 0x01010101; PREDICT_8x8_DC(dc);}static void predict_8x8_dc( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_LEFT PREDICT_8x8_LOAD_TOP const uint32_t dc = ((l0+l1+l2+l3+l4+l5+l6+l7 +t0+t1+t2+t3+t4+t5+t6+t7+8) >> 4) * 0x01010101; PREDICT_8x8_DC(dc);}static void predict_8x8_h( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_LEFT#define ROW(y) ((uint32_t*)(src+y*FDEC_STRIDE))[0] =\ ((uint32_t*)(src+y*FDEC_STRIDE))[1] = 0x01010101U * l##y ROW(0); ROW(1); ROW(2); ROW(3); ROW(4); ROW(5); ROW(6); ROW(7);#undef ROW}static void predict_8x8_v( uint8_t *src, uint8_t edge[33] ){ const uint64_t top = *(uint64_t*)(edge+16); int y; for( y = 0; y < 8; y++ ) *(uint64_t*)(src+y*FDEC_STRIDE) = top;}static void predict_8x8_ddl( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP PREDICT_8x8_LOAD_TOPRIGHT SRC(0,0)= (t0 + 2*t1 + t2 + 2) >> 2; SRC(0,1)=SRC(1,0)= (t1 + 2*t2 + t3 + 2) >> 2; SRC(0,2)=SRC(1,1)=SRC(2,0)= (t2 + 2*t3 + t4 + 2) >> 2; SRC(0,3)=SRC(1,2)=SRC(2,1)=SRC(3,0)= (t3 + 2*t4 + t5 + 2) >> 2; SRC(0,4)=SRC(1,3)=SRC(2,2)=SRC(3,1)=SRC(4,0)= (t4 + 2*t5 + t6 + 2) >> 2; SRC(0,5)=SRC(1,4)=SRC(2,3)=SRC(3,2)=SRC(4,1)=SRC(5,0)= (t5 + 2*t6 + t7 + 2) >> 2; SRC(0,6)=SRC(1,5)=SRC(2,4)=SRC(3,3)=SRC(4,2)=SRC(5,1)=SRC(6,0)= (t6 + 2*t7 + t8 + 2) >> 2; SRC(0,7)=SRC(1,6)=SRC(2,5)=SRC(3,4)=SRC(4,3)=SRC(5,2)=SRC(6,1)=SRC(7,0)= (t7 + 2*t8 + t9 + 2) >> 2; SRC(1,7)=SRC(2,6)=SRC(3,5)=SRC(4,4)=SRC(5,3)=SRC(6,2)=SRC(7,1)= (t8 + 2*t9 + t10 + 2) >> 2; SRC(2,7)=SRC(3,6)=SRC(4,5)=SRC(5,4)=SRC(6,3)=SRC(7,2)= (t9 + 2*t10 + t11 + 2) >> 2; SRC(3,7)=SRC(4,6)=SRC(5,5)=SRC(6,4)=SRC(7,3)= (t10 + 2*t11 + t12 + 2) >> 2; SRC(4,7)=SRC(5,6)=SRC(6,5)=SRC(7,4)= (t11 + 2*t12 + t13 + 2) >> 2; SRC(5,7)=SRC(6,6)=SRC(7,5)= (t12 + 2*t13 + t14 + 2) >> 2; SRC(6,7)=SRC(7,6)= (t13 + 2*t14 + t15 + 2) >> 2; SRC(7,7)= (t14 + 3*t15 + 2) >> 2;}static void predict_8x8_ddr( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP PREDICT_8x8_LOAD_LEFT PREDICT_8x8_LOAD_TOPLEFT SRC(0,7)= (l7 + 2*l6 + l5 + 2) >> 2; SRC(0,6)=SRC(1,7)= (l6 + 2*l5 + l4 + 2) >> 2; SRC(0,5)=SRC(1,6)=SRC(2,7)= (l5 + 2*l4 + l3 + 2) >> 2; SRC(0,4)=SRC(1,5)=SRC(2,6)=SRC(3,7)= (l4 + 2*l3 + l2 + 2) >> 2; SRC(0,3)=SRC(1,4)=SRC(2,5)=SRC(3,6)=SRC(4,7)= (l3 + 2*l2 + l1 + 2) >> 2; SRC(0,2)=SRC(1,3)=SRC(2,4)=SRC(3,5)=SRC(4,6)=SRC(5,7)= (l2 + 2*l1 + l0 + 2) >> 2; SRC(0,1)=SRC(1,2)=SRC(2,3)=SRC(3,4)=SRC(4,5)=SRC(5,6)=SRC(6,7)= (l1 + 2*l0 + lt + 2) >> 2; SRC(0,0)=SRC(1,1)=SRC(2,2)=SRC(3,3)=SRC(4,4)=SRC(5,5)=SRC(6,6)=SRC(7,7)= (l0 + 2*lt + t0 + 2) >> 2; SRC(1,0)=SRC(2,1)=SRC(3,2)=SRC(4,3)=SRC(5,4)=SRC(6,5)=SRC(7,6)= (lt + 2*t0 + t1 + 2) >> 2; SRC(2,0)=SRC(3,1)=SRC(4,2)=SRC(5,3)=SRC(6,4)=SRC(7,5)= (t0 + 2*t1 + t2 + 2) >> 2; SRC(3,0)=SRC(4,1)=SRC(5,2)=SRC(6,3)=SRC(7,4)= (t1 + 2*t2 + t3 + 2) >> 2; SRC(4,0)=SRC(5,1)=SRC(6,2)=SRC(7,3)= (t2 + 2*t3 + t4 + 2) >> 2; SRC(5,0)=SRC(6,1)=SRC(7,2)= (t3 + 2*t4 + t5 + 2) >> 2; SRC(6,0)=SRC(7,1)= (t4 + 2*t5 + t6 + 2) >> 2; SRC(7,0)= (t5 + 2*t6 + t7 + 2) >> 2; }static void predict_8x8_vr( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP PREDICT_8x8_LOAD_LEFT PREDICT_8x8_LOAD_TOPLEFT SRC(0,6)= (l5 + 2*l4 + l3 + 2) >> 2; SRC(0,7)= (l6 + 2*l5 + l4 + 2) >> 2; SRC(0,4)=SRC(1,6)= (l3 + 2*l2 + l1 + 2) >> 2; SRC(0,5)=SRC(1,7)= (l4 + 2*l3 + l2 + 2) >> 2; SRC(0,2)=SRC(1,4)=SRC(2,6)= (l1 + 2*l0 + lt + 2) >> 2; SRC(0,3)=SRC(1,5)=SRC(2,7)= (l2 + 2*l1 + l0 + 2) >> 2; SRC(0,1)=SRC(1,3)=SRC(2,5)=SRC(3,7)= (l0 + 2*lt + t0 + 2) >> 2; SRC(0,0)=SRC(1,2)=SRC(2,4)=SRC(3,6)= (lt + t0 + 1) >> 1; SRC(1,1)=SRC(2,3)=SRC(3,5)=SRC(4,7)= (lt + 2*t0 + t1 + 2) >> 2; SRC(1,0)=SRC(2,2)=SRC(3,4)=SRC(4,6)= (t0 + t1 + 1) >> 1; SRC(2,1)=SRC(3,3)=SRC(4,5)=SRC(5,7)= (t0 + 2*t1 + t2 + 2) >> 2; SRC(2,0)=SRC(3,2)=SRC(4,4)=SRC(5,6)= (t1 + t2 + 1) >> 1; SRC(3,1)=SRC(4,3)=SRC(5,5)=SRC(6,7)= (t1 + 2*t2 + t3 + 2) >> 2; SRC(3,0)=SRC(4,2)=SRC(5,4)=SRC(6,6)= (t2 + t3 + 1) >> 1; SRC(4,1)=SRC(5,3)=SRC(6,5)=SRC(7,7)= (t2 + 2*t3 + t4 + 2) >> 2; SRC(4,0)=SRC(5,2)=SRC(6,4)=SRC(7,6)= (t3 + t4 + 1) >> 1; SRC(5,1)=SRC(6,3)=SRC(7,5)= (t3 + 2*t4 + t5 + 2) >> 2; SRC(5,0)=SRC(6,2)=SRC(7,4)= (t4 + t5 + 1) >> 1; SRC(6,1)=SRC(7,3)= (t4 + 2*t5 + t6 + 2) >> 2; SRC(6,0)=SRC(7,2)= (t5 + t6 + 1) >> 1; SRC(7,1)= (t5 + 2*t6 + t7 + 2) >> 2; SRC(7,0)= (t6 + t7 + 1) >> 1;}static void predict_8x8_hd( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP PREDICT_8x8_LOAD_LEFT PREDICT_8x8_LOAD_TOPLEFT SRC(0,7)= (l6 + l7 + 1) >> 1; SRC(1,7)= (l5 + 2*l6 + l7 + 2) >> 2; SRC(0,6)=SRC(2,7)= (l5 + l6 + 1) >> 1; SRC(1,6)=SRC(3,7)= (l4 + 2*l5 + l6 + 2) >> 2; SRC(0,5)=SRC(2,6)=SRC(4,7)= (l4 + l5 + 1) >> 1; SRC(1,5)=SRC(3,6)=SRC(5,7)= (l3 + 2*l4 + l5 + 2) >> 2; SRC(0,4)=SRC(2,5)=SRC(4,6)=SRC(6,7)= (l3 + l4 + 1) >> 1; SRC(1,4)=SRC(3,5)=SRC(5,6)=SRC(7,7)= (l2 + 2*l3 + l4 + 2) >> 2; SRC(0,3)=SRC(2,4)=SRC(4,5)=SRC(6,6)= (l2 + l3 + 1) >> 1; SRC(1,3)=SRC(3,4)=SRC(5,5)=SRC(7,6)= (l1 + 2*l2 + l3 + 2) >> 2; SRC(0,2)=SRC(2,3)=SRC(4,4)=SRC(6,5)= (l1 + l2 + 1) >> 1; SRC(1,2)=SRC(3,3)=SRC(5,4)=SRC(7,5)= (l0 + 2*l1 + l2 + 2) >> 2; SRC(0,1)=SRC(2,2)=SRC(4,3)=SRC(6,4)= (l0 + l1 + 1) >> 1; SRC(1,1)=SRC(3,2)=SRC(5,3)=SRC(7,4)= (lt + 2*l0 + l1 + 2) >> 2; SRC(0,0)=SRC(2,1)=SRC(4,2)=SRC(6,3)= (lt + l0 + 1) >> 1; SRC(1,0)=SRC(3,1)=SRC(5,2)=SRC(7,3)= (l0 + 2*lt + t0 + 2) >> 2; SRC(2,0)=SRC(4,1)=SRC(6,2)= (t1 + 2*t0 + lt + 2) >> 2; SRC(3,0)=SRC(5,1)=SRC(7,2)= (t2 + 2*t1 + t0 + 2) >> 2; SRC(4,0)=SRC(6,1)= (t3 + 2*t2 + t1 + 2) >> 2; SRC(5,0)=SRC(7,1)= (t4 + 2*t3 + t2 + 2) >> 2; SRC(6,0)= (t5 + 2*t4 + t3 + 2) >> 2; SRC(7,0)= (t6 + 2*t5 + t4 + 2) >> 2;}static void predict_8x8_vl( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_TOP PREDICT_8x8_LOAD_TOPRIGHT SRC(0,0)= (t0 + t1 + 1) >> 1; SRC(0,1)= (t0 + 2*t1 + t2 + 2) >> 2; SRC(0,2)=SRC(1,0)= (t1 + t2 + 1) >> 1; SRC(0,3)=SRC(1,1)= (t1 + 2*t2 + t3 + 2) >> 2; SRC(0,4)=SRC(1,2)=SRC(2,0)= (t2 + t3 + 1) >> 1; SRC(0,5)=SRC(1,3)=SRC(2,1)= (t2 + 2*t3 + t4 + 2) >> 2; SRC(0,6)=SRC(1,4)=SRC(2,2)=SRC(3,0)= (t3 + t4 + 1) >> 1; SRC(0,7)=SRC(1,5)=SRC(2,3)=SRC(3,1)= (t3 + 2*t4 + t5 + 2) >> 2; SRC(1,6)=SRC(2,4)=SRC(3,2)=SRC(4,0)= (t4 + t5 + 1) >> 1; SRC(1,7)=SRC(2,5)=SRC(3,3)=SRC(4,1)= (t4 + 2*t5 + t6 + 2) >> 2; SRC(2,6)=SRC(3,4)=SRC(4,2)=SRC(5,0)= (t5 + t6 + 1) >> 1; SRC(2,7)=SRC(3,5)=SRC(4,3)=SRC(5,1)= (t5 + 2*t6 + t7 + 2) >> 2; SRC(3,6)=SRC(4,4)=SRC(5,2)=SRC(6,0)= (t6 + t7 + 1) >> 1; SRC(3,7)=SRC(4,5)=SRC(5,3)=SRC(6,1)= (t6 + 2*t7 + t8 + 2) >> 2; SRC(4,6)=SRC(5,4)=SRC(6,2)=SRC(7,0)= (t7 + t8 + 1) >> 1; SRC(4,7)=SRC(5,5)=SRC(6,3)=SRC(7,1)= (t7 + 2*t8 + t9 + 2) >> 2; SRC(5,6)=SRC(6,4)=SRC(7,2)= (t8 + t9 + 1) >> 1; SRC(5,7)=SRC(6,5)=SRC(7,3)= (t8 + 2*t9 + t10 + 2) >> 2; SRC(6,6)=SRC(7,4)= (t9 + t10 + 1) >> 1; SRC(6,7)=SRC(7,5)= (t9 + 2*t10 + t11 + 2) >> 2; SRC(7,6)= (t10 + t11 + 1) >> 1; SRC(7,7)= (t10 + 2*t11 + t12 + 2) >> 2;}static void predict_8x8_hu( uint8_t *src, uint8_t edge[33] ){ PREDICT_8x8_LOAD_LEFT SRC(0,0)= (l0 + l1 + 1) >> 1; SRC(1,0)= (l0 + 2*l1 + l2 + 2) >> 2; SRC(0,1)=SRC(2,0)= (l1 + l2 + 1) >> 1; SRC(1,1)=SRC(3,0)= (l1 + 2*l2 + l3 + 2) >> 2; SRC(0,2)=SRC(2,1)=SRC(4,0)= (l2 + l3 + 1) >> 1; SRC(1,2)=SRC(3,1)=SRC(5,0)= (l2 + 2*l3 + l4 + 2) >> 2; SRC(0,3)=SRC(2,2)=SRC(4,1)=SRC(6,0)= (l3 + l4 + 1) >> 1; SRC(1,3)=SRC(3,2)=SRC(5,1)=SRC(7,0)= (l3 + 2*l4 + l5 + 2) >> 2; SRC(0,4)=SRC(2,3)=SRC(4,2)=SRC(6,1)= (l4 + l5 + 1) >> 1; SRC(1,4)=SRC(3,3)=SRC(5,2)=SRC(7,1)= (l4 + 2*l5 + l6 + 2) >> 2; SRC(0,5)=SRC(2,4)=SRC(4,3)=SRC(6,2)= (l5 + l6 + 1) >> 1; SRC(1,5)=SRC(3,4)=SRC(5,3)=SRC(7,2)= (l5 + 2*l6 + l7 + 2) >> 2; SRC(0,6)=SRC(2,5)=SRC(4,4)=SRC(6,3)= (l6 + l7 + 1) >> 1; SRC(1,6)=SRC(3,5)=SRC(5,4)=SRC(7,3)= (l6 + 3*l7 + 2) >> 2; SRC(0,7)=SRC(1,7)=SRC(2,6)=SRC(2,7)=SRC(3,6)= SRC(3,7)=SRC(4,5)=SRC(4,6)=SRC(4,7)=SRC(5,5)= SRC(5,6)=SRC(5,7)=SRC(6,4)=SRC(6,5)=SRC(6,6)= SRC(6,7)=SRC(7,4)=SRC(7,5)=SRC(7,6)=SRC(7,7)= l7;}/**************************************************************************** * Exported functions: ****************************************************************************/void x264_predict_16x16_init( int cpu, x264_predict_t pf[7] ){ pf[I_PRED_16x16_V ] = predict_16x16_v; pf[I_PRED_16x16_H ] = predict_16x16_h; pf[I_PRED_16x16_DC] = predict_16x16_dc; pf[I_PRED_16x16_P ] = predict_16x16_p; pf[I_PRED_16x16_DC_LEFT]= predict_16x16_dc_left; pf[I_PRED_16x16_DC_TOP ]= predict_16x16_dc_top; pf[I_PRED_16x16_DC_128 ]= predict_16x16_dc_128;#ifdef HAVE_MMXEXT if( cpu&X264_CPU_MMXEXT ) { x264_predict_16x16_init_mmxext( pf ); }#endif}void x264_predict_8x8c_init( int cpu, x264_predict_t pf[7] ){ pf[I_PRED_CHROMA_V ] = predict_8x8c_v; pf[I_PRED_CHROMA_H ] = predict_8x8c_h; pf[I_PRED_CHROMA_DC] = predict_8x8c_dc; pf[I_PRED_CHROMA_P ] = predict_8x8c_p; pf[I_PRED_CHROMA_DC_LEFT]= predict_8x8c_dc_left; pf[I_PRED_CHROMA_DC_TOP ]= predict_8x8c_dc_top; pf[I_PRED_CHROMA_DC_128 ]= predict_8x8c_dc_128;#ifdef HAVE_MMXEXT if( cpu&X264_CPU_MMXEXT ) { x264_predict_8x8c_init_mmxext( pf ); }#endif}void x264_predict_8x8_init( int cpu, x264_predict8x8_t pf[12] ){ pf[I_PRED_8x8_V] = predict_8x8_v; pf[I_PRED_8x8_H] = predict_8x8_h; pf[I_PRED_8x8_DC] = predict_8x8_dc; pf[I_PRED_8x8_DDL] = predict_8x8_ddl; pf[I_PRED_8x8_DDR] = predict_8x8_ddr; pf[I_PRED_8x8_VR] = predict_8x8_vr; pf[I_PRED_8x8_HD] = predict_8x8_hd; pf[I_PRED_8x8_VL] = predict_8x8_vl; pf[I_PRED_8x8_HU] = predict_8x8_hu; pf[I_PRED_8x8_DC_LEFT]= predict_8x8_dc_left; pf[I_PRED_8x8_DC_TOP] = predict_8x8_dc_top; pf[I_PRED_8x8_DC_128] = predict_8x8_dc_128;#ifdef HAVE_MMXEXT if( cpu&X264_CPU_MMXEXT ) { x264_predict_8x8_init_mmxext( pf ); }#endif#ifdef HAVE_SSE2 if( cpu&X264_CPU_SSE2 ) { x264_predict_8x8_init_sse2( pf ); }#endif}void x264_predict_4x4_init( int cpu, x264_predict_t pf[12] ){ pf[I_PRED_4x4_V] = predict_4x4_v; pf[I_PRED_4x4_H] = predict_4x4_h; pf[I_PRED_4x4_DC] = predict_4x4_dc; pf[I_PRED_4x4_DDL] = predict_4x4_ddl; pf[I_PRED_4x4_DDR] = predict_4x4_ddr; pf[I_PRED_4x4_VR] = predict_4x4_vr; pf[I_PRED_4x4_HD] = predict_4x4_hd; pf[I_PRED_4x4_VL] = predict_4x4_vl; pf[I_PRED_4x4_HU] = predict_4x4_hu; pf[I_PRED_4x4_DC_LEFT]= predict_4x4_dc_left; pf[I_PRED_4x4_DC_TOP] = predict_4x4_dc_top; pf[I_PRED_4x4_DC_128] = predict_4x4_dc_128;#ifdef HAVE_MMXEXT if( cpu&X264_CPU_MMXEXT ) { x264_predict_4x4_init_mmxext( pf ); }#endif}?? 快捷鍵說(shuō)明
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