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#include "prediction/mbprediction.h" |
#include "prediction/mbprediction.h" |
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#include "utils/timer.h" |
#include "utils/timer.h" |
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#include "utils/emms.h" |
#include "utils/emms.h" |
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#include "motion/motion.h" |
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#include "image/image.h" |
#include "image/image.h" |
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#include "image/colorspace.h" |
#include "image/colorspace.h" |
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#define SIGN(X) (((X)>0)?1:-1) |
#define SIGN(X) (((X)>0)?1:-1) |
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#define ABS(X) (((X)>0)?(X):-(X)) |
#define ABS(X) (((X)>0)?(X):-(X)) |
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static const uint32_t roundtab[16] = |
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{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
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// decode an inter macroblock |
// decode an inter macroblock |
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if (dec->quarterpel) |
if (dec->quarterpel) |
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{ |
{ |
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uv_dx = (uv_dx >> 1) | (uv_dx & 1); |
uv_dx /= 2; |
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uv_dy = (uv_dy >> 1) | (uv_dy & 1); |
uv_dy /= 2; |
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} |
} |
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uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
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uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
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start_timer(); |
start_timer(); |
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if(dec->quarterpel) { |
if(dec->quarterpel) { |
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} else { |
} else { |
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int sum; |
int sum; |
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sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
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if (dec->quarterpel) |
if (dec->quarterpel) |
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{ |
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
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sum /= 2; |
else |
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} |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
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uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
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sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
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if (dec->quarterpel) |
if (dec->quarterpel) |
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{ |
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
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sum /= 2; |
else |
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} |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
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uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
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start_timer(); |
start_timer(); |
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if(dec->quarterpel) { |
if(dec->quarterpel) { |