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// 01.05.2002 updated MBMotionCompensationBVOP |
// 01.05.2002 updated MBMotionCompensationBVOP |
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// 14.04.2002 bframe compensation |
// 14.04.2002 bframe compensation |
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#include <stdio.h> |
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#include "../encoder.h" |
#include "../encoder.h" |
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#include "../utils/mbfunctions.h" |
#include "../utils/mbfunctions.h" |
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#include "../image/interpolate8x8.h" |
#include "../image/interpolate8x8.h" |
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#include "../utils/timer.h" |
#include "../utils/timer.h" |
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#include "motion.h" |
#include "motion.h" |
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#ifndef ABS |
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#define ABS(X) (((X)>0)?(X):-(X)) |
#define ABS(X) (((X)>0)?(X):-(X)) |
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#endif |
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#ifndef SIGN |
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#define SIGN(X) (((X)>0)?1:-1) |
#define SIGN(X) (((X)>0)?1:-1) |
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#endif |
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#ifndef RSHIFT |
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#define RSHIFT(a,b) ((a) > 0 ? ((a) + (1<<((b)-1)))>>(b) : ((a) + (1<<((b)-1))-1)>>(b)) |
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#endif |
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// decode an inter macroblock |
/* assume b>0 */ |
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#ifndef ROUNDED_DIV |
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#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b)) |
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#endif |
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static void |
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rrv_mv_scaleup(VECTOR * mv) |
/* This is borrowed from decoder.c */ |
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static __inline int gmc_sanitize(int value, int quarterpel, int fcode) |
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{ |
{ |
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if (mv->x > 0) { |
int length = 1 << (fcode+4); |
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mv->x = 2*mv->x - 1; |
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} else if (mv->x < 0) { |
// if (quarterpel) value *= 2; |
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mv->x = 2*mv->x + 1; |
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| 39 |
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if (value < -length) |
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return -length; |
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else if (value >= length) |
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return length-1; |
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else return value; |
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} |
} |
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if (mv->y > 0) { |
/* And this is borrowed from bitstream.c until we find a common solution */ |
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mv->y = 2*mv->y - 1; |
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} else if (mv->y < 0) { |
static uint32_t __inline |
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mv->y = 2*mv->y + 1; |
log2bin(uint32_t value) |
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{ |
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/* Changed by Chenm001 */ |
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#if !defined(_MSC_VER) |
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int n = 0; |
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while (value) { |
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value >>= 1; |
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n++; |
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} |
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return n; |
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#else |
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__asm { |
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bsr eax, value |
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inc eax |
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} |
} |
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#endif |
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} |
} |
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uint8_t * const cur, |
uint8_t * const cur, |
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const uint8_t * const ref, |
const uint8_t * const ref, |
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const uint8_t * const refh, |
const uint8_t * const refh, |
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uint8_t * const refv, |
const uint8_t * const refv, |
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const uint8_t * const refhv, |
const uint8_t * const refhv, |
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uint8_t * const tmp, |
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uint32_t x, |
uint32_t x, |
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uint32_t y, |
uint32_t y, |
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const int32_t dx, |
const int32_t dx, |
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const int32_t dy, |
const int32_t dy, |
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const uint32_t stride, |
const int32_t stride, |
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const uint32_t quarterpel, |
const int quarterpel, |
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const int reduced_resolution, |
const int reduced_resolution, |
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const uint32_t rounding) |
const int32_t rounding) |
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{ |
{ |
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const uint8_t * ptr; |
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if (reduced_resolution) |
if (!reduced_resolution) { |
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{ |
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/* XXX: todo */ |
if(quarterpel) { |
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if ((dx&3) | (dy&3)) { |
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interpolate16x16_quarterpel(tmp - y * stride - x, |
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(uint8_t *) ref, tmp + 32, |
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tmp + 64, tmp + 96, x, y, dx, dy, stride, rounding); |
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ptr = tmp; |
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} else ptr = ref + (y + dy/4)*stride + x + dx/4; // fullpixel position |
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VECTOR mv; |
} else ptr = get_ref(ref, refh, refv, refhv, x, y, 1, dx, dy, stride); |
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int i,j; |
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uint8_t tmp[18*18]; |
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x*=2; |
transfer_8to16sub(dct_codes, cur + y * stride + x, |
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y*=2; |
ptr, stride); |
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transfer_8to16sub(dct_codes+64, cur + y * stride + x + 8, |
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ptr + 8, stride); |
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transfer_8to16sub(dct_codes+128, cur + y * stride + x + 8*stride, |
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ptr + 8*stride, stride); |
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transfer_8to16sub(dct_codes+192, cur + y * stride + x + 8*stride+8, |
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ptr + 8*stride + 8, stride); |
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mv.x = dx; |
} else { //reduced_resolution |
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mv.y = dy; |
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rrv_mv_scaleup(&mv); |
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interpolate32x32_switch( |
x *= 2; y *= 2; |
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refv, ref, x, y, mv.x, mv.y, stride, rounding); |
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for (j = 0; j < 32; j++) |
ptr = get_ref(ref, refh, refv, refhv, x, y, 1, dx, dy, stride); |
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for (i = 0; i < 32; i++) |
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cur[(y+j)*stride + x + i] -= refv[(y+j)*stride + x + i]; |
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filter_18x18_to_8x8(dct_codes, cur + y*stride + x, stride); |
filter_18x18_to_8x8(dct_codes, cur + y*stride + x, stride); |
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filter_18x18_to_8x8(dct_codes+64, cur + y*stride + x + 16, stride); |
filter_diff_18x18_to_8x8(dct_codes, ptr, stride); |
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filter_18x18_to_8x8(dct_codes+128, cur + (y+16)*stride + x, stride); |
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filter_18x18_to_8x8(dct_codes+192, cur + (y+16)*stride + x + 16, stride); |
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/* |
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for (j = 0; j < 16; j++) |
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for (i = 0; i < 16; i++) |
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tmp[(j+1)*18 + i+1] = refv[ (y+j)*stride + x+i]; |
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for (i = 1; i < 17; i++) |
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{ |
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tmp[ 0*18 + i] = tmp[ 1*18 + i]; |
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tmp[17*18 + i] = tmp[16*18 + i]; |
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} |
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for (i = 0; i < 18; i++) |
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{ |
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tmp[ i*18 + 0] = tmp[i*18 + 1]; |
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tmp[ i*18 + 17] = tmp[i*18 + 16]; |
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} |
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filter_18x18_to_8x8(dct_codes, tmp, 18); |
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for (j = 0; j < 16; j++) |
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for (i = 0; i < 16; i++) |
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tmp[(j+1)*18 + i+1] = refv[ (y+j)*stride + x+i + 16]; |
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for (i = 1; i < 17; i++) |
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{ |
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tmp[ 0*18 + i] = tmp[ 1*18 + i]; |
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tmp[17*18 + i] = tmp[16*18 + i]; |
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} |
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for (i = 0; i < 18; i++) |
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{ |
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tmp[ i*18 + 0] = tmp[i*18 + 1]; |
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tmp[ i*18 + 17] = tmp[i*18 + 16]; |
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} |
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filter_18x18_to_8x8(dct_codes+64, tmp, 18); |
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for (j = 0; j < 16; j++) |
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for (i = 0; i < 16; i++) |
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tmp[(j+1)*18 + i+1] = refv[ (y+16+j)*stride + x+i]; |
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for (i = 1; i < 17; i++) |
filter_18x18_to_8x8(dct_codes+64, cur+y*stride + x + 16, stride); |
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{ |
filter_diff_18x18_to_8x8(dct_codes+64, ptr + 16, stride); |
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tmp[ 0*18 + i] = tmp[ 1*18 + i]; |
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tmp[17*18 + i] = tmp[16*18 + i]; |
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} |
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for (i = 0; i < 18; i++) |
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{ |
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tmp[ i*18 + 0] = tmp[i*18 + 1]; |
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tmp[ i*18 + 17] = tmp[i*18 + 16]; |
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} |
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filter_18x18_to_8x8(dct_codes+128, tmp, 18); |
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for (j = 0; j < 16; j++) |
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for (i = 0; i < 16; i++) |
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tmp[(j+1)*18 + i+1] = refv[ (y+16+j)*stride + x+i + 16]; |
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for (i = 1; i < 17; i++) |
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{ |
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tmp[ 0*18 + i] = tmp[ 1*18 + i]; |
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tmp[17*18 + i] = tmp[16*18 + i]; |
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} |
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for (i = 0; i < 18; i++) |
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{ |
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tmp[ i*18 + 0] = tmp[i*18 + 1]; |
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tmp[ i*18 + 17] = tmp[i*18 + 16]; |
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} |
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filter_18x18_to_8x8(dct_codes+192, tmp, 18); |
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*/ |
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//memset(dct_codes, 0, sizeof(uint16_t) * 64 * 4); |
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}else{ |
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if(quarterpel) { |
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interpolate16x16_quarterpel((uint8_t *) refv, (uint8_t *) ref, (uint8_t *) refh, |
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(uint8_t *) refh + 64, (uint8_t *) refhv, x, y, dx, dy, stride, rounding); |
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transfer_8to16sub(dct_codes, cur + y*stride + x, |
filter_18x18_to_8x8(dct_codes+128, cur+(y+16)*stride + x, stride); |
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refv + y*stride + x, stride); |
filter_diff_18x18_to_8x8(dct_codes+128, ptr + 16*stride, stride); |
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transfer_8to16sub(dct_codes+64, cur + y*stride + x + 8, |
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refv + y*stride + x + 8, stride); |
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transfer_8to16sub(dct_codes+128, cur + y*stride + x + 8*stride, |
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refv + y*stride + x + 8*stride, stride); |
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transfer_8to16sub(dct_codes+192, cur + y*stride + x + 8*stride + 8, |
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refv + y*stride + x + 8*stride+8, stride); |
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} |
filter_18x18_to_8x8(dct_codes+192, cur+(y+16)*stride + x + 16, stride); |
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else |
filter_diff_18x18_to_8x8(dct_codes+192, ptr + 16*stride + 16, stride); |
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{ |
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const uint8_t * reference; |
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switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
transfer32x32_copy(cur + y*stride + x, ptr, stride); |
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{ |
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case 0: reference = ref + ((y + dy / 2) * stride + x + dx / 2); break; |
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case 1: reference = refv + ((y + (dy-1) / 2) * stride + x + dx / 2); break; |
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case 2: reference = refh + ((y + dy / 2) * stride + x + (dx-1) / 2); break; |
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default: // case 3: |
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reference = refhv + ((y + (dy-1) / 2) * stride + x + (dx-1) / 2); break; |
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} |
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transfer_8to16sub(dct_codes, cur + y * stride + x, |
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reference, stride); |
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transfer_8to16sub(dct_codes+64, cur + y * stride + x + 8, |
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reference + 8, stride); |
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transfer_8to16sub(dct_codes+128, cur + y * stride + x + 8*stride, |
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reference + 8*stride, stride); |
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transfer_8to16sub(dct_codes+192, cur + y * stride + x + 8*stride+8, |
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reference + 8*stride + 8, stride); |
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} |
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| 128 |
} |
} |
| 129 |
} |
} |
| 130 |
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| 135 |
const uint8_t * const refh, |
const uint8_t * const refh, |
| 136 |
const uint8_t * const refv, |
const uint8_t * const refv, |
| 137 |
const uint8_t * const refhv, |
const uint8_t * const refhv, |
| 138 |
const uint32_t x, |
uint8_t * const tmp, |
| 139 |
const uint32_t y, |
uint32_t x, |
| 140 |
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uint32_t y, |
| 141 |
const int32_t dx, |
const int32_t dx, |
| 142 |
const int32_t dy, |
const int32_t dy, |
| 143 |
const uint32_t stride, |
const int32_t stride, |
| 144 |
const uint32_t quarterpel, |
const int32_t quarterpel, |
| 145 |
const int reduced_resolution, |
const int reduced_resolution, |
| 146 |
const uint32_t rounding) |
const int32_t rounding) |
| 147 |
{ |
{ |
| 148 |
if (reduced_resolution) |
const uint8_t * ptr; |
| 149 |
{ |
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| 150 |
// XXX: todo |
if (!reduced_resolution) { |
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} else { |
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| 151 |
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| 152 |
if(quarterpel) { |
if(quarterpel) { |
| 153 |
interpolate8x8_quarterpel((uint8_t *) refv, (uint8_t *) ref, (uint8_t *) refh, |
if ((dx&3) | (dy&3)) { |
| 154 |
(uint8_t *) refh + 64, (uint8_t *) refhv, x, y, dx, dy, stride, rounding); |
interpolate8x8_quarterpel(tmp - y*stride - x, |
| 155 |
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(uint8_t *) ref, tmp + 32, |
| 156 |
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tmp + 64, tmp + 96, x, y, dx, dy, stride, rounding); |
| 157 |
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ptr = tmp; |
| 158 |
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} else ptr = ref + (y + dy/4)*stride + x + dx/4; // fullpixel position |
| 159 |
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} else ptr = get_ref(ref, refh, refv, refhv, x, y, 1, dx, dy, stride); |
| 160 |
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| 161 |
transfer_8to16sub(dct_codes, cur + y*stride + x, |
transfer_8to16sub(dct_codes, cur + y * stride + x, ptr, stride); |
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refv + y*stride + x, stride); |
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} |
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else |
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{ |
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const uint8_t * reference; |
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| 162 |
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| 163 |
switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
} else { //reduced_resolution |
| 164 |
{ |
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| 165 |
case 0: reference = ref + ((y + dy / 2) * stride + x + dx / 2); break; |
x *= 2; y *= 2; |
| 166 |
case 1: reference = refv + ((y + (dy-1) / 2) * stride + x + dx / 2); break; |
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| 167 |
case 2: reference = refh + ((y + dy / 2) * stride + x + (dx-1) / 2); break; |
ptr = get_ref(ref, refh, refv, refhv, x, y, 1, dx, dy, stride); |
| 168 |
default: // case 3: |
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| 169 |
reference = refhv + ((y + (dy-1) / 2) * stride + x + (dx-1) / 2); break; |
filter_18x18_to_8x8(dct_codes, cur+y*stride + x, stride); |
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filter_diff_18x18_to_8x8(dct_codes, ptr, stride); |
| 171 |
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| 172 |
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transfer16x16_copy(cur + y*stride + x, ptr, stride); |
| 173 |
} |
} |
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transfer_8to16sub(dct_codes, cur + y * stride + x, |
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reference, stride); |
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| 174 |
} |
} |
| 175 |
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| 176 |
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/* XXX: slow, inelegant... */ |
| 177 |
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static void |
| 178 |
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interpolate18x18_switch(uint8_t * const cur, |
| 179 |
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const uint8_t * const refn, |
| 180 |
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const uint32_t x, |
| 181 |
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const uint32_t y, |
| 182 |
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const int32_t dx, |
| 183 |
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const int dy, |
| 184 |
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const int32_t stride, |
| 185 |
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const int32_t rounding) |
| 186 |
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{ |
| 187 |
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interpolate8x8_switch(cur, refn, x-1, y-1, dx, dy, stride, rounding); |
| 188 |
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interpolate8x8_switch(cur, refn, x+7, y-1, dx, dy, stride, rounding); |
| 189 |
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interpolate8x8_switch(cur, refn, x+9, y-1, dx, dy, stride, rounding); |
| 190 |
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| 191 |
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interpolate8x8_switch(cur, refn, x-1, y+7, dx, dy, stride, rounding); |
| 192 |
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interpolate8x8_switch(cur, refn, x+7, y+7, dx, dy, stride, rounding); |
| 193 |
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interpolate8x8_switch(cur, refn, x+9, y+7, dx, dy, stride, rounding); |
| 194 |
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| 195 |
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interpolate8x8_switch(cur, refn, x-1, y+9, dx, dy, stride, rounding); |
| 196 |
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interpolate8x8_switch(cur, refn, x+7, y+9, dx, dy, stride, rounding); |
| 197 |
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interpolate8x8_switch(cur, refn, x+9, y+9, dx, dy, stride, rounding); |
| 198 |
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} |
| 199 |
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| 200 |
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static void |
| 201 |
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CompensateChroma( int dx, int dy, |
| 202 |
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const int i, const int j, |
| 203 |
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IMAGE * const Cur, |
| 204 |
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const IMAGE * const Ref, |
| 205 |
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uint8_t * const temp, |
| 206 |
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int16_t * const coeff, |
| 207 |
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const int32_t stride, |
| 208 |
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const int rounding, |
| 209 |
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const int rrv) |
| 210 |
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{ /* uv-block-based compensation */ |
| 211 |
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| 212 |
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if (!rrv) { |
| 213 |
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transfer_8to16sub(coeff, Cur->u + 8 * j * stride + 8 * i, |
| 214 |
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interpolate8x8_switch2(temp, Ref->u, 8 * i, 8 * j, |
| 215 |
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dx, dy, stride, rounding), |
| 216 |
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stride); |
| 217 |
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transfer_8to16sub(coeff + 64, Cur->v + 8 * j * stride + 8 * i, |
| 218 |
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interpolate8x8_switch2(temp, Ref->v, 8 * i, 8 * j, |
| 219 |
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dx, dy, stride, rounding), |
| 220 |
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stride); |
| 221 |
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} else { |
| 222 |
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uint8_t * current, * reference; |
| 223 |
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| 224 |
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current = Cur->u + 16*j*stride + 16*i; |
| 225 |
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reference = temp - 16*j*stride - 16*i; |
| 226 |
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interpolate18x18_switch(reference, Ref->u, 16*i, 16*j, dx, dy, stride, rounding); |
| 227 |
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filter_18x18_to_8x8(coeff, current, stride); |
| 228 |
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filter_diff_18x18_to_8x8(coeff, temp, stride); |
| 229 |
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transfer16x16_copy(current, temp, stride); |
| 230 |
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| 231 |
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current = Cur->v + 16*j*stride + 16*i; |
| 232 |
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interpolate18x18_switch(reference, Ref->v, 16*i, 16*j, dx, dy, stride, rounding); |
| 233 |
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filter_18x18_to_8x8(coeff + 64, current, stride); |
| 234 |
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filter_diff_18x18_to_8x8(coeff + 64, temp, stride); |
| 235 |
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transfer16x16_copy(current, temp, stride); |
| 236 |
} |
} |
| 237 |
} |
} |
| 238 |
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|
| 244 |
const IMAGE * const refh, |
const IMAGE * const refh, |
| 245 |
const IMAGE * const refv, |
const IMAGE * const refv, |
| 246 |
const IMAGE * const refhv, |
const IMAGE * const refhv, |
| 247 |
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const IMAGE * const refGMC, |
| 248 |
IMAGE * const cur, |
IMAGE * const cur, |
| 249 |
int16_t * dct_codes, |
int16_t * dct_codes, |
| 250 |
const uint32_t width, |
const uint32_t width, |
| 251 |
const uint32_t height, |
const uint32_t height, |
| 252 |
const uint32_t edged_width, |
const uint32_t edged_width, |
| 253 |
const uint32_t quarterpel, |
const int32_t quarterpel, |
| 254 |
const int reduced_resolution, |
const int reduced_resolution, |
| 255 |
const uint32_t rounding) |
const int32_t rounding) |
| 256 |
{ |
{ |
| 257 |
|
int32_t dx; |
| 258 |
|
int32_t dy; |
| 259 |
|
|
| 260 |
|
|
| 261 |
if (mb->mode == MODE_NOT_CODED || mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
uint8_t * const tmp = refv->u; |
| 262 |
|
|
| 263 |
int32_t dx = (quarterpel ? mb->qmvs[0].x : mb->mvs[0].x); |
if ( (!reduced_resolution) && (mb->mode == MODE_NOT_CODED) ) { /* quick copy for early SKIP */ |
| 264 |
int32_t dy = (quarterpel ? mb->qmvs[0].y : mb->mvs[0].y); |
/* early SKIP is only activated in P-VOPs, not in S-VOPs, so mcsel can never be 1 */ |
| 265 |
|
|
| 266 |
if ( (mb->mode == MODE_NOT_CODED) && (dx==0) && (dy==0) ) { /* quick copy */ |
/* if (mb->mcsel) { |
| 267 |
|
transfer16x16_copy(cur->y + 16 * (i + j * edged_width), |
| 268 |
|
refGMC->y + 16 * (i + j * edged_width), |
| 269 |
|
edged_width); |
| 270 |
|
transfer8x8_copy(cur->u + 8 * (i + j * edged_width/2), |
| 271 |
|
refGMC->u + 8 * (i + j * edged_width/2), |
| 272 |
|
edged_width / 2); |
| 273 |
|
transfer8x8_copy(cur->v + 8 * (i + j * edged_width/2), |
| 274 |
|
refGMC->v + 8 * (i + j * edged_width/2), |
| 275 |
|
edged_width / 2); |
| 276 |
|
} else |
| 277 |
|
*/ |
| 278 |
|
{ |
| 279 |
transfer16x16_copy(cur->y + 16 * (i + j * edged_width), |
transfer16x16_copy(cur->y + 16 * (i + j * edged_width), |
| 280 |
ref->y + 16 * (i + j * edged_width), |
ref->y + 16 * (i + j * edged_width), |
| 281 |
edged_width); |
edged_width); |
| 286 |
transfer8x8_copy(cur->v + 8 * (i + j * edged_width/2), |
transfer8x8_copy(cur->v + 8 * (i + j * edged_width/2), |
| 287 |
ref->v + 8 * (i + j * edged_width/2), |
ref->v + 8 * (i + j * edged_width/2), |
| 288 |
edged_width / 2); |
edged_width / 2); |
| 289 |
|
} |
| 290 |
return; |
return; |
| 291 |
} |
} |
|
/* quick MODE_NOT_CODED for GMC with MV!=(0,0) is still needed */ |
|
| 292 |
|
|
| 293 |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
if ((mb->mode == MODE_NOT_CODED || mb->mode == MODE_INTER |
| 294 |
refv->y, refhv->y, 16 * i, 16 * j, dx, dy, |
|| mb->mode == MODE_INTER_Q) /*&& !quarterpel*/) { |
|
edged_width, quarterpel, reduced_resolution, rounding); |
|
| 295 |
|
|
| 296 |
if (quarterpel) |
/* reduced resolution + GMC: not possible */ |
| 297 |
{ |
|
| 298 |
dx /= 2; |
if (mb->mcsel) { |
| 299 |
dy /= 2; |
|
| 300 |
|
/* call normal routine once, easier than "if (mcsel)"ing all the time */ |
| 301 |
|
|
| 302 |
|
transfer_8to16sub(&dct_codes[0*64], cur->y + 16*j*edged_width + 16*i, |
| 303 |
|
refGMC->y + 16*j*edged_width + 16*i, edged_width); |
| 304 |
|
transfer_8to16sub(&dct_codes[1*64], cur->y + 16*j*edged_width + 16*i+8, |
| 305 |
|
refGMC->y + 16*j*edged_width + 16*i+8, edged_width); |
| 306 |
|
transfer_8to16sub(&dct_codes[2*64], cur->y + (16*j+8)*edged_width + 16*i, |
| 307 |
|
refGMC->y + (16*j+8)*edged_width + 16*i, edged_width); |
| 308 |
|
transfer_8to16sub(&dct_codes[3*64], cur->y + (16*j+8)*edged_width + 16*i+8, |
| 309 |
|
refGMC->y + (16*j+8)*edged_width + 16*i+8, edged_width); |
| 310 |
|
|
| 311 |
|
/* lumi is needed earlier for mode decision, but chroma should be done block-based, but it isn't, yet. */ |
| 312 |
|
|
| 313 |
|
transfer_8to16sub(&dct_codes[4 * 64], cur->u + 8 *j*edged_width/2 + 8*i, |
| 314 |
|
refGMC->u + 8 *j*edged_width/2 + 8*i, edged_width/2); |
| 315 |
|
|
| 316 |
|
transfer_8to16sub(&dct_codes[5 * 64], cur->v + 8*j* edged_width/2 + 8*i, |
| 317 |
|
refGMC->v + 8*j* edged_width/2 + 8*i, edged_width/2); |
| 318 |
|
|
| 319 |
|
return; |
| 320 |
} |
} |
| 321 |
|
|
| 322 |
dx = (dx >> 1) + roundtab_79[dx & 0x3]; |
/* ordinary compensation */ |
|
dy = (dy >> 1) + roundtab_79[dy & 0x3]; |
|
| 323 |
|
|
| 324 |
/* uv-block-based compensation */ |
dx = (quarterpel ? mb->qmvs[0].x : mb->mvs[0].x); |
| 325 |
if (reduced_resolution) |
dy = (quarterpel ? mb->qmvs[0].y : mb->mvs[0].y); |
|
{ |
|
|
// XXX: todo |
|
|
}else{ |
|
|
transfer_8to16sub(&dct_codes[4 * 64], |
|
|
cur->u + 8 * j * edged_width / 2 + 8 * i, |
|
|
interpolate8x8_switch2(refv->u, ref->u, 8 * i, 8 * j, |
|
|
dx, dy, edged_width / 2, rounding), |
|
|
edged_width / 2); |
|
| 326 |
|
|
| 327 |
transfer_8to16sub(&dct_codes[5 * 64], |
if (reduced_resolution) { |
| 328 |
cur->v + 8 * j * edged_width / 2 + 8 * i, |
dx = RRV_MV_SCALEUP(dx); |
| 329 |
interpolate8x8_switch2(refv->u, ref->v, 8 * i, 8 * j, |
dy = RRV_MV_SCALEUP(dy); |
|
dx, dy, edged_width / 2, rounding), |
|
|
edged_width / 2); |
|
| 330 |
} |
} |
| 331 |
|
|
| 332 |
} else { // mode == MODE_INTER4V |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
| 333 |
int32_t sum, dx, dy; |
refv->y, refhv->y, tmp, 16 * i, 16 * j, dx, dy, |
| 334 |
VECTOR *mvs; |
edged_width, quarterpel, reduced_resolution, rounding); |
| 335 |
|
|
| 336 |
if(quarterpel) |
dx /= (int)(1 + quarterpel); |
| 337 |
mvs = mb->qmvs; |
dy /= (int)(1 + quarterpel); |
|
else |
|
|
mvs = mb->mvs; |
|
| 338 |
|
|
| 339 |
if (reduced_resolution) |
dx = (dx >> 1) + roundtab_79[dx & 0x3]; |
| 340 |
{ |
dy = (dy >> 1) + roundtab_79[dy & 0x3]; |
|
///XXX: todo |
|
|
}else{ |
|
| 341 |
|
|
| 342 |
compensate8x8_interpolate(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
} else { // mode == MODE_INTER4V |
| 343 |
refv->y, refhv->y, 16 * i, 16 * j, mvs[0].x, |
int k, sumx = 0, sumy = 0; |
| 344 |
mvs[0].y, edged_width, quarterpel, reduced_resolution, rounding); |
const VECTOR * const mvs = (quarterpel ? mb->qmvs : mb->mvs); |
|
compensate8x8_interpolate(&dct_codes[1 * 64], cur->y, ref->y, refh->y, |
|
|
refv->y, refhv->y, 16 * i + 8, 16 * j, |
|
|
mvs[1].x, mvs[1].y, edged_width, quarterpel, reduced_resolution, rounding); |
|
|
compensate8x8_interpolate(&dct_codes[2 * 64], cur->y, ref->y, refh->y, |
|
|
refv->y, refhv->y, 16 * i, 16 * j + 8, |
|
|
mvs[2].x, mvs[2].y, edged_width, quarterpel, reduced_resolution, rounding); |
|
|
compensate8x8_interpolate(&dct_codes[3 * 64], cur->y, ref->y, refh->y, |
|
|
refv->y, refhv->y, 16 * i + 8, 16 * j + 8, |
|
|
mvs[3].x, mvs[3].y, edged_width, quarterpel, reduced_resolution, rounding); |
|
|
} |
|
|
|
|
|
if(quarterpel) |
|
|
sum = (mvs[0].x / 2) + (mvs[1].x / 2) + (mvs[2].x / 2) + (mvs[3].x / 2); |
|
|
else |
|
|
sum = mvs[0].x + mvs[1].x + mvs[2].x + mvs[3].x; |
|
|
|
|
|
dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
|
|
|
|
if(quarterpel) |
|
|
sum = (mvs[0].y / 2) + (mvs[1].y / 2) + (mvs[2].y / 2) + (mvs[3].y / 2); |
|
|
else |
|
|
sum = mvs[0].y + mvs[1].y + mvs[2].y + mvs[3].y; |
|
| 345 |
|
|
| 346 |
dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
for (k = 0; k < 4; k++) { |
| 347 |
|
dx = mvs[k].x; |
| 348 |
|
dy = mvs[k].y; |
| 349 |
|
sumx += dx / (1 + quarterpel); |
| 350 |
|
sumy += dy / (1 + quarterpel); |
| 351 |
|
|
| 352 |
/* uv-block-based compensation */ |
if (reduced_resolution){ |
| 353 |
if (reduced_resolution) |
dx = RRV_MV_SCALEUP(dx); |
| 354 |
{ |
dy = RRV_MV_SCALEUP(dy); |
| 355 |
//XXX: todo |
} |
|
}else{ |
|
|
transfer_8to16sub(&dct_codes[4 * 64], |
|
|
cur->u + 8 * j * edged_width / 2 + 8 * i, |
|
|
interpolate8x8_switch2(refv->u, ref->u, 8 * i, 8 * j, |
|
|
dx, dy, edged_width / 2, rounding), |
|
|
edged_width / 2); |
|
| 356 |
|
|
| 357 |
transfer_8to16sub(&dct_codes[5 * 64], |
compensate8x8_interpolate(&dct_codes[k * 64], cur->y, ref->y, refh->y, |
| 358 |
cur->v + 8 * j * edged_width / 2 + 8 * i, |
refv->y, refhv->y, tmp, 16 * i + 8*(k&1), 16 * j + 8*(k>>1), dx, |
| 359 |
interpolate8x8_switch2(refv->u, ref->v, 8 * i, 8 * j, |
dy, edged_width, quarterpel, reduced_resolution, rounding); |
|
dx, dy, edged_width / 2, rounding), |
|
|
edged_width / 2); |
|
| 360 |
} |
} |
| 361 |
|
dx = (sumx >> 3) + roundtab_76[sumx & 0xf]; |
| 362 |
|
dy = (sumy >> 3) + roundtab_76[sumy & 0xf]; |
| 363 |
} |
} |
| 364 |
|
|
| 365 |
|
CompensateChroma(dx, dy, i, j, cur, ref, tmp, |
| 366 |
|
&dct_codes[4 * 64], edged_width / 2, rounding, reduced_resolution); |
| 367 |
} |
} |
| 368 |
|
|
| 369 |
|
|
| 383 |
const IMAGE * const b_refhv, |
const IMAGE * const b_refhv, |
| 384 |
int16_t * dct_codes) |
int16_t * dct_codes) |
| 385 |
{ |
{ |
| 386 |
static const uint32_t roundtab[16] = |
const uint32_t edged_width = pParam->edged_width; |
| 387 |
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
int32_t dx, dy, b_dx, b_dy, sumx, sumy, b_sumx, b_sumy; |
| 388 |
|
int k; |
| 389 |
const int32_t edged_width = pParam->edged_width; |
const int quarterpel = pParam->m_quarterpel; |
| 390 |
int32_t dx, dy; |
const uint8_t * ptr1, * ptr2; |
| 391 |
int32_t b_dx, b_dy; |
uint8_t * const tmp = f_refv->u; |
| 392 |
int k,sum; |
const VECTOR * const fmvs = (quarterpel ? mb->qmvs : mb->mvs); |
| 393 |
int x = i; |
const VECTOR * const bmvs = (quarterpel ? mb->b_qmvs : mb->b_mvs); |
|
int y = j; |
|
|
uint32_t quarterpel = pParam->m_quarterpel; |
|
| 394 |
|
|
| 395 |
switch (mb->mode) { |
switch (mb->mode) { |
| 396 |
case MODE_FORWARD: |
case MODE_FORWARD: |
| 397 |
|
dx = fmvs->x; dy = fmvs->y; |
|
if (quarterpel) { |
|
|
dx = mb->qmvs[0].x; |
|
|
dy = mb->qmvs[0].y; |
|
|
} else { |
|
|
dx = mb->mvs[0].x; |
|
|
dy = mb->mvs[0].y; |
|
|
} |
|
| 398 |
|
|
| 399 |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, f_ref->y, f_refh->y, |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, f_ref->y, f_refh->y, |
| 400 |
f_refv->y, f_refhv->y, 16 * i, 16 * j, dx, |
f_refv->y, f_refhv->y, tmp, 16 * i, 16 * j, dx, |
| 401 |
dy, edged_width, quarterpel, 0 /*reduced_resolution*/, 0); |
dy, edged_width, quarterpel, 0, 0); |
| 402 |
|
|
| 403 |
if (quarterpel) { |
dx /= 1 + quarterpel; |
| 404 |
dx /= 2; |
dy /= 1 + quarterpel; |
| 405 |
dy /= 2; |
CompensateChroma( (dx >> 1) + roundtab_79[dx & 0x3], |
| 406 |
} |
(dy >> 1) + roundtab_79[dy & 0x3], |
| 407 |
|
i, j, cur, f_ref, tmp, |
| 408 |
|
&dct_codes[4 * 64], edged_width / 2, 0, 0); |
| 409 |
|
|
| 410 |
dx = (dx >> 1) + roundtab_79[dx & 0x3]; |
return; |
|
dy = (dy >> 1) + roundtab_79[dy & 0x3]; |
|
| 411 |
|
|
| 412 |
/* uv-block-based compensation */ |
case MODE_BACKWARD: |
| 413 |
transfer_8to16sub(&dct_codes[4 * 64], |
b_dx = bmvs->x; b_dy = bmvs->y; |
|
cur->u + 8 * j * edged_width / 2 + 8 * i, |
|
|
interpolate8x8_switch2(f_refv->u, f_ref->u, 8 * i, 8 * j, |
|
|
dx, dy, edged_width / 2, 0), |
|
| 414 |
|
|
| 415 |
edged_width / 2); |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, b_ref->y, b_refh->y, |
| 416 |
|
b_refv->y, b_refhv->y, tmp, 16 * i, 16 * j, b_dx, |
| 417 |
|
b_dy, edged_width, quarterpel, 0, 0); |
| 418 |
|
|
| 419 |
transfer_8to16sub(&dct_codes[5 * 64], |
b_dx /= 1 + quarterpel; |
| 420 |
cur->v + 8 * j * edged_width / 2 + 8 * i, |
b_dy /= 1 + quarterpel; |
| 421 |
interpolate8x8_switch2(f_refv->u, f_ref->v, 8 * i, 8 * j, |
CompensateChroma( (b_dx >> 1) + roundtab_79[b_dx & 0x3], |
| 422 |
dx, dy, edged_width / 2, 0), |
(b_dy >> 1) + roundtab_79[b_dy & 0x3], |
| 423 |
|
i, j, cur, b_ref, tmp, |
| 424 |
|
&dct_codes[4 * 64], edged_width / 2, 0, 0); |
| 425 |
|
|
| 426 |
edged_width / 2); |
return; |
| 427 |
|
|
| 428 |
break; |
case MODE_INTERPOLATE: /* _could_ use DIRECT, but would be overkill (no 4MV there) */ |
| 429 |
|
case MODE_DIRECT_NO4V: |
| 430 |
|
dx = fmvs->x; dy = fmvs->y; |
| 431 |
|
b_dx = bmvs->x; b_dy = bmvs->y; |
| 432 |
|
|
|
case MODE_BACKWARD: |
|
| 433 |
if (quarterpel) { |
if (quarterpel) { |
|
b_dx = mb->b_qmvs[0].x; |
|
|
b_dy = mb->b_qmvs[0].y; |
|
|
} else { |
|
|
b_dx = mb->b_mvs[0].x; |
|
|
b_dy = mb->b_mvs[0].y; |
|
|
} |
|
| 434 |
|
|
| 435 |
compensate16x16_interpolate(&dct_codes[0 * 64], cur->y, b_ref->y, b_refh->y, |
if ((dx&3) | (dy&3)) { |
| 436 |
b_refv->y, b_refhv->y, 16 * i, 16 * j, b_dx, |
interpolate16x16_quarterpel(tmp - i * 16 - j * 16 * edged_width, |
| 437 |
b_dy, edged_width, quarterpel, 0 /*reduced_resolution*/, 0); |
(uint8_t *) f_ref->y, tmp + 32, |
| 438 |
|
tmp + 64, tmp + 96, 16*i, 16*j, dx, dy, edged_width, 0); |
| 439 |
|
ptr1 = tmp; |
| 440 |
|
} else ptr1 = f_ref->y + (16*j + dy/4)*edged_width + 16*i + dx/4; // fullpixel position |
| 441 |
|
|
| 442 |
|
if ((b_dx&3) | (b_dy&3)) { |
| 443 |
|
interpolate16x16_quarterpel(tmp - i * 16 - j * 16 * edged_width + 16, |
| 444 |
|
(uint8_t *) b_ref->y, tmp + 32, |
| 445 |
|
tmp + 64, tmp + 96, 16*i, 16*j, b_dx, b_dy, edged_width, 0); |
| 446 |
|
ptr2 = tmp + 16; |
| 447 |
|
} else ptr2 = b_ref->y + (16*j + b_dy/4)*edged_width + 16*i + b_dx/4; // fullpixel position |
| 448 |
|
|
|
if (quarterpel) { |
|
| 449 |
b_dx /= 2; |
b_dx /= 2; |
| 450 |
b_dy /= 2; |
b_dy /= 2; |
| 451 |
} |
dx /= 2; |
| 452 |
|
dy /= 2; |
|
b_dx = (b_dx >> 1) + roundtab_79[b_dx & 0x3]; |
|
|
b_dy = (b_dy >> 1) + roundtab_79[b_dy & 0x3]; |
|
| 453 |
|
|
| 454 |
|
} else { |
| 455 |
|
ptr1 = get_ref(f_ref->y, f_refh->y, f_refv->y, f_refhv->y, |
| 456 |
|
i, j, 16, dx, dy, edged_width); |
| 457 |
|
|
| 458 |
/* uv-block-based compensation */ |
ptr2 = get_ref(b_ref->y, b_refh->y, b_refv->y, b_refhv->y, |
| 459 |
transfer_8to16sub(&dct_codes[4 * 64], |
i, j, 16, b_dx, b_dy, edged_width); |
| 460 |
cur->u + 8 * j * edged_width / 2 + 8 * i, |
} |
| 461 |
interpolate8x8_switch2(f_refv->u, b_ref->u, 8 * i, 8 * j, |
for (k = 0; k < 4; k++) |
| 462 |
b_dx, b_dy, edged_width / 2, 0), |
transfer_8to16sub2(&dct_codes[k * 64], |
| 463 |
|
cur->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
| 464 |
|
ptr1 + (k&1)*8 + (k>>1)*8*edged_width, |
| 465 |
|
ptr2 + (k&1)*8 + (k>>1)*8*edged_width, edged_width); |
| 466 |
|
|
|
edged_width / 2); |
|
| 467 |
|
|
| 468 |
transfer_8to16sub(&dct_codes[5 * 64], |
dx = (dx >> 1) + roundtab_79[dx & 0x3]; |
| 469 |
cur->v + 8 * j * edged_width / 2 + 8 * i, |
dy = (dy >> 1) + roundtab_79[dy & 0x3]; |
|
interpolate8x8_switch2(f_refv->u, b_ref->v, 8 * i, 8 * j, |
|
|
b_dx, b_dy, edged_width / 2, 0), |
|
| 470 |
|
|
| 471 |
edged_width / 2); |
b_dx = (b_dx >> 1) + roundtab_79[b_dx & 0x3]; |
| 472 |
|
b_dy = (b_dy >> 1) + roundtab_79[b_dy & 0x3]; |
| 473 |
|
|
| 474 |
break; |
break; |
| 475 |
|
|
| 476 |
case MODE_INTERPOLATE: /* _could_ use DIRECT, but would be overkill (no 4MV there) */ |
default: // MODE_DIRECT |
| 477 |
case MODE_DIRECT_NO4V: |
sumx = sumy = b_sumx = b_sumy = 0; |
| 478 |
|
|
| 479 |
|
for (k = 0; k < 4; k++) { |
| 480 |
|
|
| 481 |
|
dx = fmvs[k].x; dy = fmvs[k].y; |
| 482 |
|
b_dx = bmvs[k].x; b_dy = bmvs[k].y; |
| 483 |
|
|
| 484 |
if (quarterpel) { |
if (quarterpel) { |
| 485 |
dx = mb->qmvs[0].x; |
sumx += dx/2; sumy += dy/2; |
| 486 |
dy = mb->qmvs[0].y; |
b_sumx += b_dx/2; b_sumy += b_dy/2; |
|
b_dx = mb->b_qmvs[0].x; |
|
|
b_dy = mb->b_qmvs[0].y; |
|
|
|
|
|
interpolate16x16_quarterpel((uint8_t *) f_refv->y, (uint8_t *) f_ref->y, (uint8_t *) f_refh->y, |
|
|
(uint8_t *) f_refh->y + 64, (uint8_t *) f_refhv->y, 16*i, 16*j, dx, dy, edged_width, 0); |
|
|
interpolate16x16_quarterpel((uint8_t *) b_refv->y, (uint8_t *) b_ref->y, (uint8_t *) b_refh->y, |
|
|
(uint8_t *) b_refh->y + 64, (uint8_t *) b_refhv->y, 16*i, 16*j, b_dx, b_dy, edged_width, 0); |
|
| 487 |
|
|
| 488 |
for (k = 0; k < 4; k++) { |
if ((dx&3) | (dy&3)) { |
| 489 |
transfer_8to16sub2(&dct_codes[k * 64], |
interpolate8x8_quarterpel(tmp - (i * 16+(k&1)*8) - (j * 16+((k>>1)*8)) * edged_width, |
| 490 |
cur->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
(uint8_t *) f_ref->y, |
| 491 |
f_refv->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
tmp + 32, tmp + 64, tmp + 96, |
| 492 |
b_refv->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
16*i + (k&1)*8, 16*j + (k>>1)*8, dx, dy, edged_width, 0); |
| 493 |
edged_width); |
ptr1 = tmp; |
| 494 |
} |
} else ptr1 = f_ref->y + (16*j + (k>>1)*8 + dy/4)*edged_width + 16*i + (k&1)*8 + dx/4; |
|
b_dx /= 2; |
|
|
b_dy /= 2; |
|
|
dx /= 2; |
|
|
dy /= 2; |
|
| 495 |
|
|
| 496 |
|
if ((b_dx&3) | (b_dy&3)) { |
| 497 |
|
interpolate8x8_quarterpel(tmp - (i * 16+(k&1)*8) - (j * 16+((k>>1)*8)) * edged_width + 16, |
| 498 |
|
(uint8_t *) b_ref->y, |
| 499 |
|
tmp + 16, tmp + 32, tmp + 48, |
| 500 |
|
16*i + (k&1)*8, 16*j + (k>>1)*8, b_dx, b_dy, edged_width, 0); |
| 501 |
|
ptr2 = tmp + 16; |
| 502 |
|
} else ptr2 = b_ref->y + (16*j + (k>>1)*8 + b_dy/4)*edged_width + 16*i + (k&1)*8 + b_dx/4; |
| 503 |
} else { |
} else { |
| 504 |
dx = mb->mvs[0].x; |
sumx += dx; sumy += dy; |
| 505 |
dy = mb->mvs[0].y; |
b_sumx += b_dx; b_sumy += b_dy; |
|
b_dx = mb->b_mvs[0].x; |
|
|
b_dy = mb->b_mvs[0].y; |
|
| 506 |
|
|
| 507 |
for (k = 0; k < 4; k++) { |
ptr1 = get_ref(f_ref->y, f_refh->y, f_refv->y, f_refhv->y, |
| 508 |
|
2*i + (k&1), 2*j + (k>>1), 8, dx, dy, edged_width); |
| 509 |
|
ptr2 = get_ref(b_ref->y, b_refh->y, b_refv->y, b_refhv->y, |
| 510 |
|
2*i + (k&1), 2*j + (k>>1), 8, b_dx, b_dy, edged_width); |
| 511 |
|
} |
| 512 |
transfer_8to16sub2(&dct_codes[k * 64], |
transfer_8to16sub2(&dct_codes[k * 64], |
| 513 |
cur->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
cur->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
| 514 |
get_ref(f_ref->y, f_refh->y, f_refv->y, |
ptr1, ptr2, edged_width); |
|
f_refhv->y, 2*i + (k&1), 2*j + (k>>1), 8, dx, dy, |
|
|
edged_width), |
|
|
get_ref(b_ref->y, b_refh->y, b_refv->y, |
|
|
b_refhv->y, 2*i + (k&1), 2 * j+(k>>1), 8, b_dx, b_dy, |
|
|
edged_width), |
|
|
edged_width); |
|
|
} |
|
| 515 |
|
|
| 516 |
} |
} |
| 517 |
|
|
| 518 |
|
dx = (sumx >> 3) + roundtab_76[sumx & 0xf]; |
| 519 |
|
dy = (sumy >> 3) + roundtab_76[sumy & 0xf]; |
| 520 |
|
b_dx = (b_sumx >> 3) + roundtab_76[b_sumx & 0xf]; |
| 521 |
|
b_dy = (b_sumy >> 3) + roundtab_76[b_sumy & 0xf]; |
| 522 |
|
|
| 523 |
dx = (dx >> 1) + roundtab_79[dx & 0x3]; |
break; |
| 524 |
dy = (dy >> 1) + roundtab_79[dy & 0x3]; |
} |
|
|
|
|
b_dx = (b_dx >> 1) + roundtab_79[b_dx & 0x3]; |
|
|
b_dy = (b_dy >> 1) + roundtab_79[b_dy & 0x3]; |
|
| 525 |
|
|
| 526 |
|
// uv block-based chroma interpolation for direct and interpolate modes |
| 527 |
transfer_8to16sub2(&dct_codes[4 * 64], |
transfer_8to16sub2(&dct_codes[4 * 64], |
| 528 |
cur->u + (y * 8) * edged_width / 2 + (x * 8), |
cur->u + (j * 8) * edged_width / 2 + (i * 8), |
| 529 |
interpolate8x8_switch2(f_refv->u, b_ref->u, 8 * i, 8 * j, |
interpolate8x8_switch2(tmp, b_ref->u, 8 * i, 8 * j, |
| 530 |
b_dx, b_dy, edged_width / 2, 0), |
b_dx, b_dy, edged_width / 2, 0), |
| 531 |
interpolate8x8_switch2(f_refv->u + 8, f_ref->u, 8 * i, 8 * j, |
interpolate8x8_switch2(tmp + 8, f_ref->u, 8 * i, 8 * j, |
| 532 |
dx, dy, edged_width / 2, 0), |
dx, dy, edged_width / 2, 0), |
| 533 |
edged_width / 2); |
edged_width / 2); |
| 534 |
|
|
| 535 |
transfer_8to16sub2(&dct_codes[5 * 64], |
transfer_8to16sub2(&dct_codes[5 * 64], |
| 536 |
cur->v + (y * 8) * edged_width / 2 + (x * 8), |
cur->v + (j * 8) * edged_width / 2 + (i * 8), |
| 537 |
interpolate8x8_switch2(f_refv->u, b_ref->v, 8 * i, 8 * j, |
interpolate8x8_switch2(tmp, b_ref->v, 8 * i, 8 * j, |
| 538 |
b_dx, b_dy, edged_width / 2, 0), |
b_dx, b_dy, edged_width / 2, 0), |
| 539 |
interpolate8x8_switch2(f_refv->u + 8, f_ref->v, 8 * i, 8 * j, |
interpolate8x8_switch2(tmp + 8, f_ref->v, 8 * i, 8 * j, |
| 540 |
dx, dy, edged_width / 2, 0), |
dx, dy, edged_width / 2, 0), |
| 541 |
edged_width / 2); |
edged_width / 2); |
| 542 |
|
} |
| 543 |
|
|
|
break; |
|
| 544 |
|
|
|
case MODE_DIRECT: |
|
|
if (quarterpel) { |
|
|
for (k=0;k<4;k++) { |
|
| 545 |
|
|
| 546 |
dx = mb->qmvs[k].x; |
void |
| 547 |
dy = mb->qmvs[k].y; |
generate_GMCparameters( const int num_wp, // [input]: number of warppoints |
| 548 |
b_dx = mb->b_qmvs[k].x; |
const int res, // [input]: resolution |
| 549 |
b_dy = mb->b_qmvs[k].y; |
const WARPPOINTS *const warp, // [input]: warp points |
| 550 |
|
const int width, const int height, |
| 551 |
|
GMC_DATA *const gmc) // [output] precalculated parameters |
| 552 |
|
{ |
| 553 |
|
|
| 554 |
|
/* We follow mainly two sources: The original standard, which is ugly, and the |
| 555 |
|
thesis from Andreas Dehnhardt, which is much nicer. |
| 556 |
|
|
| 557 |
|
Notation is: indices are written next to the variable, |
| 558 |
|
primes in the standard are denoted by a suffix 'p'. |
| 559 |
|
types are "c"=constant, "i"=input parameter, "f"=calculated, then fixed, |
| 560 |
|
"o"=output data, " "=other, "u" = unused, "p"=calc for every pixel |
| 561 |
|
|
| 562 |
|
type | variable name | ISO name (TeX-style) | value or range | usage |
| 563 |
|
------------------------------------------------------------------------------------- |
| 564 |
|
c | H | H | [16 , ?] | image width (w/o edges) |
| 565 |
|
c | W | W | [16 , ?] | image height (w/o edges) |
| 566 |
|
|
| 567 |
|
c | i0 | i_0 | 0 | ref. point #1, X |
| 568 |
|
c | j0 | j_0 | 0 | ref. point #1, Y |
| 569 |
|
c | i1 | i_1 | W | ref. point #2, X |
| 570 |
|
c | j1 | j_1 | 0 | ref. point #2, Y |
| 571 |
|
cu | i2 | i_2 | 0 | ref. point #3, X |
| 572 |
|
cu | i2 | j_2 | H | ref. point #3, Y |
| 573 |
|
|
| 574 |
|
i | du0 | du[0] | [-16863,16863] | warp vector #1, Y |
| 575 |
|
i | dv0 | dv[0] | [-16863,16863] | warp vector #1, Y |
| 576 |
|
i | du1 | du[1] | [-16863,16863] | warp vector #2, Y |
| 577 |
|
i | dv1 | dv[1] | [-16863,16863] | warp vector #2, Y |
| 578 |
|
iu | du2 | du[2] | [-16863,16863] | warp vector #3, Y |
| 579 |
|
iu | dv2 | dv[2] | [-16863,16863] | warp vector #3, Y |
| 580 |
|
|
| 581 |
|
i | s | s | {2,4,8,16} | interpol. resolution |
| 582 |
|
f | sigma | - | log2(s) | X / s == X >> sigma |
| 583 |
|
f | r | r | =16/s | complementary res. |
| 584 |
|
f | rho | \rho | log2(r) | X / r == X >> rho |
| 585 |
|
|
| 586 |
|
f | i0s | i'_0 | | |
| 587 |
|
f | j0s | j'_0 | | |
| 588 |
|
f | i1s | i'_1 | | |
| 589 |
|
f | j1s | j'_1 | | |
| 590 |
|
f | i2s | i'_2 | | |
| 591 |
|
f | j2s | j'_2 | | |
| 592 |
|
|
| 593 |
|
f | alpha | \alpha | | 2^{alpha-1} < W <= 2^alpha |
| 594 |
|
f | beta | \beta | | 2^{beta-1} < H <= 2^beta |
| 595 |
|
|
| 596 |
|
f | Ws | W' | W = 2^{alpha} | scaled width |
| 597 |
|
f | Hs | H' | W = 2^{beta} | scaled height |
| 598 |
|
|
| 599 |
|
f | i1ss | i''_1 | "virtual sprite stuff" |
| 600 |
|
f | j1ss | j''_1 | "virtual sprite stuff" |
| 601 |
|
f | i2ss | i''_2 | "virtual sprite stuff" |
| 602 |
|
f | j2ss | j''_2 | "virtual sprite stuff" |
| 603 |
|
*/ |
| 604 |
|
|
| 605 |
|
/* Some calculations are disabled because we only use 2 warppoints at the moment */ |
| 606 |
|
|
| 607 |
interpolate8x8_quarterpel((uint8_t *) f_refv->y, |
int du0 = warp->duv[0].x; |
| 608 |
(uint8_t *) f_ref->y, |
int dv0 = warp->duv[0].y; |
| 609 |
(uint8_t *) f_refh->y, |
int du1 = warp->duv[1].x; |
| 610 |
(uint8_t *) f_refh->y + 64, |
int dv1 = warp->duv[1].y; |
| 611 |
(uint8_t *) f_refhv->y, |
// int du2 = warp->duv[2].x; |
| 612 |
16*i + (k&1)*8, 16*j + (k>>1)*8, dx, dy, edged_width, 0); |
// int dv2 = warp->duv[2].y; |
| 613 |
interpolate8x8_quarterpel((uint8_t *) b_refv->y, |
|
| 614 |
(uint8_t *) b_ref->y, |
gmc->num_wp = num_wp; |
| 615 |
(uint8_t *) b_refh->y, |
|
| 616 |
(uint8_t *) b_refh->y + 64, |
gmc->s = res; /* scaling parameters 2,4,8 or 16 */ |
| 617 |
(uint8_t *) b_refhv->y, |
gmc->sigma = log2bin(res-1); /* log2bin(15)=4, log2bin(16)=5, log2bin(17)=5 */ |
| 618 |
16*i + (k&1)*8, 16*j + (k>>1)*8, b_dx, b_dy, edged_width, 0); |
gmc->r = 16/res; |
| 619 |
|
gmc->rho = 4 - gmc->sigma; /* = log2bin(r-1) */ |
| 620 |
|
|
| 621 |
|
gmc->W = width; |
| 622 |
|
gmc->H = height; /* fixed reference coordinates */ |
| 623 |
|
|
| 624 |
|
gmc->alpha = log2bin(gmc->W-1); |
| 625 |
|
gmc->Ws= 1<<gmc->alpha; |
| 626 |
|
|
| 627 |
|
// gmc->beta = log2bin(gmc->H-1); |
| 628 |
|
// gmc->Hs= 1<<gmc->beta; |
| 629 |
|
|
| 630 |
|
// printf("du0=%d dv0=%d du1=%d dv1=%d s=%d sigma=%d W=%d alpha=%d, Ws=%d, rho=%d\n",du0,dv0,du1,dv1,gmc->s,gmc->sigma,gmc->W,gmc->alpha,gmc->Ws,gmc->rho); |
| 631 |
|
|
| 632 |
|
/* i2s is only needed for num_wp >= 3, etc. */ |
| 633 |
|
/* the 's' values are in 1/s pel resolution */ |
| 634 |
|
gmc->i0s = res/2 * ( du0 ); |
| 635 |
|
gmc->j0s = res/2 * ( dv0 ); |
| 636 |
|
gmc->i1s = res/2 * (2*width + du1 + du0 ); |
| 637 |
|
gmc->j1s = res/2 * ( dv1 + dv0 ); |
| 638 |
|
// gmc->i2s = res/2 * ( du2 + du0 ); |
| 639 |
|
// gmc->j2s = res/2 * (2*height + dv2 + dv0 ); |
| 640 |
|
|
| 641 |
|
/* i2s and i2ss are only needed for num_wp == 3, etc. */ |
| 642 |
|
|
| 643 |
|
/* the 'ss' values are in 1/16 pel resolution */ |
| 644 |
|
gmc->i1ss = 16*gmc->Ws + ROUNDED_DIV(((gmc->W-gmc->Ws)*(gmc->r*gmc->i0s) + gmc->Ws*(gmc->r*gmc->i1s - 16*gmc->W)),gmc->W); |
| 645 |
|
gmc->j1ss = ROUNDED_DIV( ((gmc->W - gmc->Ws)*(gmc->r*gmc->j0s) + gmc->Ws*gmc->r*gmc->j1s) ,gmc->W ); |
| 646 |
|
|
| 647 |
|
// gmc->i2ss = ROUNDED_DIV( ((gmc->H - gmc->Hs)*(gmc->r*gmc->i0s) + gmc->Hs*(gmc->r*gmc->i2s)), gmc->H); |
| 648 |
|
// gmc->j2ss = 16*gmc->Hs + ROUNDED_DIV( ((gmc->H-gmc->Hs)*(gmc->r*gmc->j0s) + gmc->Ws*(gmc->r*gmc->j2s - 16*gmc->H)), gmc->H); |
| 649 |
|
|
| 650 |
transfer_8to16sub2(&dct_codes[k * 64], |
return; |
|
cur->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
|
|
f_refv->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
|
|
b_refv->y + (i * 16+(k&1)*8) + (j * 16+((k>>1)*8)) * edged_width, |
|
|
edged_width); |
|
| 651 |
} |
} |
|
sum = mb->qmvs[0].y/2 + mb->qmvs[1].y/2 + mb->qmvs[2].y/2 + mb->qmvs[3].y/2; |
|
|
dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
|
sum = mb->qmvs[0].x/2 + mb->qmvs[1].x/2 + mb->qmvs[2].x/2 + mb->qmvs[3].x/2; |
|
|
dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
|
|
|
|
sum = mb->b_qmvs[0].y/2 + mb->b_qmvs[1].y/2 + mb->b_qmvs[2].y/2 + mb->b_qmvs[3].y/2; |
|
|
b_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
|
sum = mb->b_qmvs[0].x/2 + mb->b_qmvs[1].x/2 + mb->b_qmvs[2].x/2 + mb->b_qmvs[3].x/2; |
|
|
b_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
|
| 652 |
|
|
|
} else { |
|
|
for (k=0;k<4;k++) { |
|
|
dx = mb->mvs[k].x; |
|
|
dy = mb->mvs[k].y; |
|
| 653 |
|
|
|
b_dx = mb->b_mvs[k].x; |
|
|
b_dy = mb->b_mvs[k].y; |
|
| 654 |
|
|
| 655 |
transfer_8to16sub2(&dct_codes[k * 64], |
void |
| 656 |
cur->y + (i*16 + (k&1)*8) + (j*16 + (k>>1)*8 ) * edged_width, |
generate_GMCimage( const GMC_DATA *const gmc_data, // [input] precalculated data |
| 657 |
get_ref(f_ref->y, f_refh->y, f_refv->y, f_refhv->y, |
const IMAGE *const pRef, // [input] |
| 658 |
2*i + (k&1), 2*j + (k>>1), 8, dx, dy, |
const int mb_width, |
| 659 |
edged_width), |
const int mb_height, |
| 660 |
get_ref(b_ref->y, b_refh->y, b_refv->y, b_refhv->y, |
const int stride, |
| 661 |
2*i + (k&1), 2*j + (k>>1), 8, b_dx, b_dy, |
const int stride2, |
| 662 |
edged_width), |
const int fcode, // [input] some parameters... |
| 663 |
edged_width); |
const int32_t quarterpel, // [input] for rounding avgMV |
| 664 |
|
const int reduced_resolution, // [input] ignored |
| 665 |
|
const int32_t rounding, // [input] for rounding image data |
| 666 |
|
MACROBLOCK *const pMBs, // [output] average motion vectors |
| 667 |
|
IMAGE *const pGMC) // [output] full warped image |
| 668 |
|
{ |
| 669 |
|
|
| 670 |
|
unsigned int mj,mi; |
| 671 |
|
VECTOR avgMV; |
| 672 |
|
|
| 673 |
|
for (mj=0;mj<mb_height;mj++) |
| 674 |
|
for (mi=0;mi<mb_width; mi++) |
| 675 |
|
{ |
| 676 |
|
avgMV = generate_GMCimageMB(gmc_data, pRef, mi, mj, |
| 677 |
|
stride, stride2, quarterpel, rounding, pGMC); |
| 678 |
|
|
| 679 |
|
pMBs[mj*mb_width+mi].amv.x = gmc_sanitize(avgMV.x, quarterpel, fcode); |
| 680 |
|
pMBs[mj*mb_width+mi].amv.y = gmc_sanitize(avgMV.y, quarterpel, fcode); |
| 681 |
|
pMBs[mj*mb_width+mi].mcsel = 0; /* until mode decision */ |
| 682 |
} |
} |
| 683 |
|
} |
| 684 |
|
|
| 685 |
|
|
| 686 |
|
VECTOR generate_GMCimageMB( const GMC_DATA *const gmc_data, /* [input] all precalc data */ |
| 687 |
|
const IMAGE *const pRef, /* [input] */ |
| 688 |
|
const int mi, const int mj, /* [input] MB position */ |
| 689 |
|
const int stride, /* [input] Lumi stride */ |
| 690 |
|
const int stride2, /* [input] chroma stride */ |
| 691 |
|
const int quarterpel, /* [input] for rounding of avgMV */ |
| 692 |
|
const int rounding, /* [input] for rounding of imgae data */ |
| 693 |
|
IMAGE *const pGMC) /* [outut] generate image */ |
| 694 |
|
|
| 695 |
|
/* |
| 696 |
|
type | variable name | ISO name (TeX-style) | value or range | usage |
| 697 |
|
------------------------------------------------------------------------------------- |
| 698 |
|
p | F | F(i,j) | | pelwise motion vector X in s-th pel |
| 699 |
|
p | G | G(i,j) | | pelwise motion vector Y in s-th pel |
| 700 |
|
p | Fc | F_c(i,j) | | |
| 701 |
|
p | Gc | G_c(i,j) | | same for chroma |
| 702 |
|
|
| 703 |
|
p | Y00 | Y_{00} | [0,255*s*s] | first: 4 neighbouring Y-values |
| 704 |
|
p | Y01 | Y_{01} | [0,255] | at fullpel position, around the |
| 705 |
|
p | Y10 | Y_{10} | [0,255*s] | position where pelweise MV points to |
| 706 |
|
p | Y11 | Y_{11} | [0,255] | later: bilinear interpol Y-values in Y00 |
| 707 |
|
|
| 708 |
|
p | C00 | C_{00} | [0,255*s*s] | same for chroma Cb and Cr |
| 709 |
|
p | C01 | C_{01} | [0,255] | |
| 710 |
|
p | C10 | C_{10} | [0,255*s] | |
| 711 |
|
p | C11 | C_{11} | [0,255] | |
| 712 |
|
|
| 713 |
|
*/ |
| 714 |
|
{ |
| 715 |
|
const int W = gmc_data->W; |
| 716 |
|
const int H = gmc_data->H; |
| 717 |
|
|
| 718 |
|
const int s = gmc_data->s; |
| 719 |
|
const int sigma = gmc_data->sigma; |
| 720 |
|
|
| 721 |
|
const int r = gmc_data->r; |
| 722 |
|
const int rho = gmc_data->rho; |
| 723 |
|
|
| 724 |
|
const int i0s = gmc_data->i0s; |
| 725 |
|
const int j0s = gmc_data->j0s; |
| 726 |
|
|
| 727 |
|
const int i1ss = gmc_data->i1ss; |
| 728 |
|
const int j1ss = gmc_data->j1ss; |
| 729 |
|
// const int i2ss = gmc_data->i2ss; |
| 730 |
|
// const int j2ss = gmc_data->j2ss; |
| 731 |
|
|
| 732 |
sum = mb->mvs[0].x + mb->mvs[1].x + mb->mvs[2].x + mb->mvs[3].x; |
const int alpha = gmc_data->alpha; |
| 733 |
dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
const int Ws = gmc_data->Ws; |
| 734 |
|
|
| 735 |
sum = mb->mvs[0].y + mb->mvs[1].y + mb->mvs[2].y + mb->mvs[3].y; |
// const int beta = gmc_data->beta; |
| 736 |
dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
// const int Hs = gmc_data->Hs; |
| 737 |
|
|
| 738 |
sum = mb->b_mvs[0].x + mb->b_mvs[1].x + mb->b_mvs[2].x + mb->b_mvs[3].x; |
int I,J; |
| 739 |
b_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
VECTOR avgMV = {0,0}; |
| 740 |
|
|
| 741 |
sum = mb->b_mvs[0].y + mb->b_mvs[1].y + mb->b_mvs[2].y + mb->b_mvs[3].y; |
for (J=16*mj;J<16*(mj+1);J++) |
| 742 |
b_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
for (I=16*mi;I<16*(mi+1);I++) |
| 743 |
|
{ |
| 744 |
|
int F= i0s + ( ((-r*i0s+i1ss)*I + (r*j0s-j1ss)*J + (1<<(alpha+rho-1))) >> (alpha+rho) ); |
| 745 |
|
int G= j0s + ( ((-r*j0s+j1ss)*I + (-r*i0s+i1ss)*J + (1<<(alpha+rho-1))) >> (alpha+rho) ); |
| 746 |
|
|
| 747 |
|
/* this naive implementation (with lots of multiplications) isn't slower (rather faster) than |
| 748 |
|
working incremental. Don't ask me why... maybe the whole this is memory bound? */ |
| 749 |
|
|
| 750 |
|
const int ri= F & (s-1); // fractional part of pelwise MV X |
| 751 |
|
const int rj= G & (s-1); // fractional part of pelwise MV Y |
| 752 |
|
|
| 753 |
|
int Y00,Y01,Y10,Y11; |
| 754 |
|
|
| 755 |
|
/* unclipped values are used for avgMV */ |
| 756 |
|
avgMV.x += F-(I<<sigma); /* shift position to 1/s-pel, as the MV is */ |
| 757 |
|
avgMV.y += G-(J<<sigma); /* TODO: don't do this (of course) */ |
| 758 |
|
|
| 759 |
|
F >>= sigma; |
| 760 |
|
G >>= sigma; |
| 761 |
|
|
| 762 |
|
/* clip values to be in range. Since we have edges, clip to 1 less than lower boundary |
| 763 |
|
this way positions F+1/G+1 are still right */ |
| 764 |
|
|
| 765 |
|
if (F< -1) |
| 766 |
|
F=-1; |
| 767 |
|
else if (F>W) |
| 768 |
|
F=W; /* W or W-1 doesn't matter, so save 1 subtract ;-) */ |
| 769 |
|
if (G< -1) |
| 770 |
|
G=-1; |
| 771 |
|
else if (G>H) |
| 772 |
|
G=H; /* dito */ |
| 773 |
|
|
| 774 |
|
Y00 = pRef->y[ G*stride + F ]; // Lumi values |
| 775 |
|
Y01 = pRef->y[ G*stride + F+1 ]; |
| 776 |
|
Y10 = pRef->y[ G*stride + F+stride ]; |
| 777 |
|
Y11 = pRef->y[ G*stride + F+stride+1 ]; |
| 778 |
|
|
| 779 |
|
/* bilinear interpolation */ |
| 780 |
|
Y00 = ((s-ri)*Y00 + ri*Y01); |
| 781 |
|
Y10 = ((s-ri)*Y10 + ri*Y11); |
| 782 |
|
Y00 = ((s-rj)*Y00 + rj*Y10 + s*s/2 - rounding ) >> (sigma+sigma); |
| 783 |
|
|
| 784 |
|
pGMC->y[J*stride+I] = (uint8_t)Y00; /* output 1 Y-pixel */ |
| 785 |
} |
} |
|
transfer_8to16sub2(&dct_codes[4 * 64], |
|
|
cur->u + (y * 8) * edged_width / 2 + (x * 8), |
|
|
interpolate8x8_switch2(f_refv->u, b_ref->u, 8 * i, 8 * j, |
|
|
b_dx, b_dy, edged_width / 2, 0), |
|
|
interpolate8x8_switch2(f_refv->u + 8, f_ref->u, 8 * i, 8 * j, dx, dy, |
|
|
edged_width / 2, 0), |
|
|
edged_width / 2); |
|
| 786 |
|
|
|
transfer_8to16sub2(&dct_codes[5 * 64], |
|
|
cur->v + (y * 8) * edged_width / 2 + (x * 8), |
|
|
interpolate8x8_switch2(f_refv->u, b_ref->v, 8 * i, 8 * j, |
|
|
b_dx, b_dy, edged_width / 2, 0), |
|
|
interpolate8x8_switch2(f_refv->u + 8, f_ref->v, 8 * i, 8 * j, |
|
|
dx, dy, edged_width / 2, 0), |
|
|
edged_width / 2); |
|
| 787 |
|
|
| 788 |
|
/* doing chroma _here_ is even more stupid and slow, because won't be used until Compensation and |
| 789 |
|
most likely not even then (only if the block really _is_ GMC) |
| 790 |
|
*/ |
| 791 |
|
|
| 792 |
break; |
for (J=8*mj;J<8*(mj+1);J++) /* this plays the role of j_c,i_c in the standard */ |
| 793 |
|
for (I=8*mi;I<8*(mi+1);I++) /* For I_c we have to use I_c = 4*i_c+1 ! */ |
| 794 |
|
{ |
| 795 |
|
/* same positions for both chroma components, U=Cb and V=Cr */ |
| 796 |
|
int Fc=((-r*i0s+i1ss)*(4*I+1) + (r*j0s-j1ss)*(4*J+1) +2*Ws*r*i0s |
| 797 |
|
-16*Ws +(1<<(alpha+rho+1)))>>(alpha+rho+2); |
| 798 |
|
int Gc=((-r*j0s+j1ss)*(4*I+1) +(-r*i0s+i1ss)*(4*J+1) +2*Ws*r*j0s |
| 799 |
|
-16*Ws +(1<<(alpha+rho+1))) >>(alpha+rho+2); |
| 800 |
|
|
| 801 |
|
const int ri= Fc & (s-1); // fractional part of pelwise MV X |
| 802 |
|
const int rj= Gc & (s-1); // fractional part of pelwise MV Y |
| 803 |
|
|
| 804 |
|
int C00,C01,C10,C11; |
| 805 |
|
|
| 806 |
|
Fc >>= sigma; |
| 807 |
|
Gc >>= sigma; |
| 808 |
|
|
| 809 |
|
if (Fc< -1) |
| 810 |
|
Fc=-1; |
| 811 |
|
else if (Fc>=W/2) |
| 812 |
|
Fc=W/2; /* W or W-1 doesn't matter, so save 1 subtraction ;-) */ |
| 813 |
|
if (Gc< -1) |
| 814 |
|
Gc=-1; |
| 815 |
|
else if (Gc>=H/2) |
| 816 |
|
Gc=H/2; /* dito */ |
| 817 |
|
|
| 818 |
|
/* now calculate U data */ |
| 819 |
|
C00 = pRef->u[ Gc*stride2 + Fc ]; // chroma-value Cb |
| 820 |
|
C01 = pRef->u[ Gc*stride2 + Fc+1 ]; |
| 821 |
|
C10 = pRef->u[ (Gc+1)*stride2 + Fc ]; |
| 822 |
|
C11 = pRef->u[ (Gc+1)*stride2 + Fc+1 ]; |
| 823 |
|
|
| 824 |
|
/* bilinear interpolation */ |
| 825 |
|
C00 = ((s-ri)*C00 + ri*C01); |
| 826 |
|
C10 = ((s-ri)*C10 + ri*C11); |
| 827 |
|
C00 = ((s-rj)*C00 + rj*C10 + s*s/2 - rounding ) >> (sigma+sigma); |
| 828 |
|
|
| 829 |
|
pGMC->u[J*stride2+I] = (uint8_t)C00; /* output 1 U-pixel */ |
| 830 |
|
|
| 831 |
|
/* now calculate V data */ |
| 832 |
|
C00 = pRef->v[ Gc*stride2 + Fc ]; // chroma-value Cr |
| 833 |
|
C01 = pRef->v[ Gc*stride2 + Fc+1 ]; |
| 834 |
|
C10 = pRef->v[ (Gc+1)*stride2 + Fc ]; |
| 835 |
|
C11 = pRef->v[ (Gc+1)*stride2 + Fc+1 ]; |
| 836 |
|
|
| 837 |
|
/* bilinear interpolation */ |
| 838 |
|
C00 = ((s-ri)*C00 + ri*C01); |
| 839 |
|
C10 = ((s-ri)*C10 + ri*C11); |
| 840 |
|
C00 = ((s-rj)*C00 + rj*C10 + s*s/2 - rounding ) >> (sigma+sigma); |
| 841 |
|
|
| 842 |
|
pGMC->v[J*stride2+I] = (uint8_t)C00; /* output 1 V-pixel */ |
| 843 |
} |
} |
| 844 |
|
|
| 845 |
|
/* The average vector is rounded from 1/s-pel to 1/2 or 1/4 using the '//' operator*/ |
| 846 |
|
|
| 847 |
|
avgMV.x = RSHIFT( avgMV.x, (sigma+7-quarterpel) ); |
| 848 |
|
avgMV.y = RSHIFT( avgMV.y, (sigma+7-quarterpel) ); |
| 849 |
|
|
| 850 |
|
/* ^^^^ this is the way MS Reference Software does it */ |
| 851 |
|
|
| 852 |
|
return avgMV; /* clipping to fcode area is done outside! */ |
| 853 |
} |
} |
| 854 |
|
|
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