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/************************************************************************** |
/***************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - Motion sad header - |
* - Motion Estimation header - |
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* |
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* Copyright(C) 2002 Christoph Lampert <gruel@web.de> |
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* |
* |
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* This program is an implementation of a part of one or more MPEG-4 |
* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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#include "../portab.h" |
#include "../portab.h" |
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#include "../global.h" |
#include "../global.h" |
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/* hard coded motion search parameters for motion_est */ |
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// very large value |
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#define MV_MAX_ERROR (4096 * 256) |
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// stop search if sdelta < THRESHOLD |
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#define MV16_THRESHOLD 192 |
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#define MV8_THRESHOLD 56 |
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#define NEIGH_MOVE_THRESH 0 |
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// how much a block's MV must differ from his neighbour |
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// to be search for INTER4V. The more, the faster... |
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/* sad16(0,0) bias; mpeg4 spec suggests nb/2+1 */ |
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/* nb = vop pixels * 2^(bpp-8) */ |
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#define MV16_00_BIAS (128+1) |
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#define MV8_00_BIAS (0) |
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/* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */ |
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#define MV16_INTER_BIAS 512 |
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/* Parameters which control inter/inter4v decision */ |
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#define IMV16X16 5 |
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/* vector map (vlc delta size) smoother parameters */ |
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#define NEIGH_TEND_16X16 2 |
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#define NEIGH_TEND_8X8 2 |
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// fast ((A)/2)*2 |
// fast ((A)/2)*2 |
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#define EVEN(A) (((A)<0?(A)+1:(A)) & ~1) |
#define EVEN(A) (((A)<0?(A)+1:(A)) & ~1) |
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#define MVzero(A) ( ((A).x)==(0) && ((A).y)==(0) ) |
#define MVzero(A) ( ((A).x)==(0) && ((A).y)==(0) ) |
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#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
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static const uint32_t roundtab[16] = |
/* default methods of Search, will be changed to function variable */ |
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{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
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#ifndef SEARCH16 |
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#define SEARCH16 PMVfastSearch16 |
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//#define SEARCH16 FullSearch16 |
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//#define SEARCH16 EPZSSearch16 |
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#endif |
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#ifndef SEARCH8 |
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#define SEARCH8 PMVfastSearch8 |
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//#define SEARCH8 EPZSSearch8 |
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#endif |
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/* |
/* |
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* modified rounding tables |
* Calculate the min/max range (in halfpixels) |
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* original tables see ISO spec tables 7-6 -> 7-9 |
* relative to the _MACROBLOCK_ position |
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*/ |
*/ |
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/* K = 4 */ |
static void __inline |
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static const uint32_t roundtab_76[16] = { 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1 }; |
get_range(int32_t * const min_dx, |
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/* K = 2 */ |
int32_t * const max_dx, |
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static const uint32_t roundtab_78[8] = { 0, 0, 1, 1, 0, 0, 0, 1 }; |
int32_t * const min_dy, |
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/* K = 1 */ |
int32_t * const max_dy, |
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static const uint32_t roundtab_79[4] = { 0, 1, 0, 0 }; |
const uint32_t x, |
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const uint32_t y, |
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const uint32_t block_sz, /* block dimension, 8 or 16 */ |
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const uint32_t width, |
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const uint32_t height, |
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const uint32_t fcode) |
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{ |
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const int search_range = 32 << (fcode - 1); |
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const int high = search_range - 1; |
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const int low = -search_range; |
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/* convert full-pixel measurements to half pixel */ |
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const int hp_width = 2 * width; |
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const int hp_height = 2 * height; |
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const int hp_edge = 2 * block_sz; |
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/* we need _right end_ of block, not x-coordinate */ |
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const int hp_x = 2 * (x) * block_sz; |
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/* same for _bottom end_ */ |
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const int hp_y = 2 * (y) * block_sz; |
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*max_dx = MIN(high, hp_width - hp_x); |
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*max_dy = MIN(high, hp_height - hp_y); |
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*min_dx = MAX(low, -(hp_edge + hp_x)); |
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*min_dy = MAX(low, -(hp_edge + hp_y)); |
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} |
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/* |
/* |
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return refh + (int) ((x * block + (dx - 1) / 2) + (y * block + |
return refh + (int) ((x * block + (dx - 1) / 2) + (y * block + |
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dy / 2) * stride); |
dy / 2) * stride); |
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default: |
default: |
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case 3: |
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return refhv + (int) ((x * block + (dx - 1) / 2) + (y * block + |
return refhv + (int) ((x * block + (dx - 1) / 2) + (y * block + |
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(dy - 1) / 2) * stride); |
(dy - 1) / 2) * stride); |
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} |
} |
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return refh + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + |
return refh + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + |
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(mv->y) / 2) * stride); |
(mv->y) / 2) * stride); |
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default: |
default: |
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case 3: |
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return refhv + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + |
return refhv + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + |
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((mv->y) - |
((mv->y) - |
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1) / 2) * stride); |
1) / 2) * stride); |
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} |
} |
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void MotionEstimationBVOP(MBParam * const pParam, |
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FRAMEINFO * const frame, |
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// forward (past) reference |
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const int32_t time_bp, |
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const int32_t time_pp, |
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const MACROBLOCK * const f_mbs, |
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const IMAGE * const f_ref, |
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const IMAGE * const f_refH, |
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const IMAGE * const f_refV, |
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const IMAGE * const f_refHV, |
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// backward (future) reference |
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const MACROBLOCK * const b_mbs, |
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const IMAGE * const b_ref, |
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const IMAGE * const b_refH, |
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const IMAGE * const b_refV, |
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const IMAGE * const b_refHV); |
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void MBMotionCompensationBVOP(MBParam * pParam, |
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MACROBLOCK * const mb, |
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const uint32_t i, |
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const uint32_t j, |
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IMAGE * const cur, |
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const IMAGE * const f_ref, |
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const IMAGE * const f_refh, |
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const IMAGE * const f_refv, |
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const IMAGE * const f_refhv, |
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const IMAGE * const b_ref, |
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const IMAGE * const b_refh, |
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const IMAGE * const b_refv, |
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const IMAGE * const b_refhv, |
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int16_t * dct_codes); |
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void |
static __inline const uint8_t * |
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MotionEstimationHinted( MBParam * const pParam, |
get_iref(const uint8_t * const ref, |
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const uint32_t x, |
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const uint32_t y, |
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const uint32_t block, /* block dimension, 8 or 16 */ |
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const int32_t dx, |
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const int32_t dy, |
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const uint32_t stride) |
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{ |
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return ref + (int) ((x * block + dx / 2) + (y * block + dy / 2) * stride); |
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} |
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static __inline const uint8_t * |
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get_iref_mv(const uint8_t * const ref, |
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const uint32_t x, |
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const uint32_t y, |
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const uint32_t block, /* block dimension, 8 or 16 */ |
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const VECTOR * mv, /* as usual measured in half-pel */ |
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const uint32_t stride) |
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{ |
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return ref + (int) ((x * block + (mv->x) / 2) + (y * block + (mv->y) / 2) * stride); |
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} |
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/* prototypes for MainSearch functions, i.e. Diamondsearch, FullSearch or whatever */ |
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typedef int32_t(MainSearch16Func) (const uint8_t * const pRef, |
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const uint8_t * const pRefH, |
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const uint8_t * const pRefV, |
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const uint8_t * const pRefHV, |
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const uint8_t * const cur, |
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const int x, |
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const int y, |
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const int start_x, |
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const int start_y, |
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int iMinSAD, |
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VECTOR * const currMV, |
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const int center_x, |
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const int center_y, |
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const int32_t min_dx, |
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const int32_t max_dx, |
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const int32_t min_dy, |
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const int32_t max_dy, |
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const int32_t iEdgedWidth, |
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const int32_t iDiamondSize, |
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const int32_t iFcode, |
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const int32_t iQuant, |
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int iFound); |
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typedef MainSearch16Func *MainSearch16FuncPtr; |
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typedef int32_t(MainSearch8Func) (const uint8_t * const pRef, |
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const uint8_t * const pRefH, |
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const uint8_t * const pRefV, |
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const uint8_t * const pRefHV, |
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const uint8_t * const cur, |
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const int x, |
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const int y, |
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const int start_x, |
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const int start_y, |
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int iMinSAD, |
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VECTOR * const currMV, |
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const int center_x, |
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const int center_y, |
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const int32_t min_dx, |
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const int32_t max_dx, |
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const int32_t min_dy, |
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const int32_t max_dy, |
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const int32_t iEdgedWidth, |
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const int32_t iDiamondSize, |
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const int32_t iFcode, |
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const int32_t iQuant, |
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int iFound); |
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typedef MainSearch8Func *MainSearch8FuncPtr; |
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/* prototypes for MotionEstimation functions, i.e. PMVfast, EPZS or whatever */ |
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typedef int32_t(Search16Func) ( const uint8_t * const pRef, |
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const uint8_t * const pRefH, |
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const uint8_t * const pRefV, |
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const uint8_t * const pRefHV, |
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const IMAGE * const pCur, |
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const int x, |
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const int y, |
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const int start_x, |
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const int start_y, |
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const int center_x, |
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const int center_y, |
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const uint32_t MotionFlags, |
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const uint32_t iQuant, |
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const uint32_t iFcode, |
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const MBParam * const pParam, |
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const MACROBLOCK * const pMBs, |
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const MACROBLOCK * const prevMBs, |
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VECTOR * const currMV, |
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VECTOR * const currPMV); |
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typedef Search16Func *Search16FuncPtr; |
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typedef int32_t(Search8Func) ( const uint8_t * const pRef, |
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const uint8_t * const pRefH, |
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const uint8_t * const pRefV, |
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const uint8_t * const pRefHV, |
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const IMAGE * const pCur, |
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const int x, |
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const int y, |
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const int start_x, |
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const int start_y, |
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const int center_x, |
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const int center_y, |
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const uint32_t MotionFlags, |
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const uint32_t iQuant, |
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const uint32_t iFcode, |
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const MBParam * const pParam, |
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const MACROBLOCK * const pMBs, |
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const MACROBLOCK * const prevMBs, |
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VECTOR * const currMV, |
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VECTOR * const currPMV); |
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typedef Search8Func *Search8FuncPtr; |
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Search16Func PMVfastSearch16; |
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Search16Func EPZSSearch16; |
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Search16Func PMVfastIntSearch16; |
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Search8Func PMVfastSearch8; |
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Search8Func EPZSSearch8; |
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bool |
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MotionEstimation(MBParam * const pParam, |
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FRAMEINFO * const current, |
FRAMEINFO * const current, |
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FRAMEINFO * const reference, |
FRAMEINFO * const reference, |
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const IMAGE * const pRefH, |
const IMAGE * const pRefH, |
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const IMAGE * const pRefV, |
const IMAGE * const pRefV, |
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const IMAGE * const pRefHV); |
const IMAGE * const pRefHV, |
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const uint32_t iLimit); |
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int |
typedef int32_t(Halfpel8_RefineFunc) (const uint8_t * const pRef, |
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MEanalysis( const IMAGE * const pRef, |
const uint8_t * const pRefH, |
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const IMAGE * const pCurrent, |
const uint8_t * const pRefV, |
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MBParam * const pParam, |
const uint8_t * const pRefHV, |
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MACROBLOCK * const pMBs, |
const uint8_t * const cur, |
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const uint32_t iFcode); |
const int x, |
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const int y, |
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int |
VECTOR * const currMV, |
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FindFcode( const MBParam * const pParam, |
int32_t iMinSAD, |
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const FRAMEINFO * const current); |
const int center_x, |
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const int center_y, |
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/* used internally only */ |
const int32_t min_dx, |
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const int32_t max_dx, |
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static VECTOR |
const int32_t min_dy, |
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GlobalMotionEst(const MACROBLOCK * const pMBs, |
const int32_t max_dy, |
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const MBParam * const pParam, const uint32_t iFcode); |
const int32_t iFcode, |
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const int32_t iQuant, |
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const int32_t iEdgedWidth); |
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typedef Halfpel8_RefineFunc *Halfpel8_RefineFuncPtr; |
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extern Halfpel8_RefineFuncPtr Halfpel8_Refine; |
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Halfpel8_RefineFunc Halfpel8_Refine_c; |
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Halfpel8_RefineFunc Halfpel8_Refine_ia64; |
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#endif /* _MOTION_H_ */ |
#endif /* _MOTION_H_ */ |