motion.h

基于Linux的ffmepg decoder

#ifndef _MOTION_H_
#define _MOTION_H_

#include "portab.h"
#include "ftmcp100.h"
#include "global.h"

/* hard coded motion search parameters for motion_est */

// very large value
#define MV_MAX_ERROR	(4096 * 256)

// stop search if sdelta < THRESHOLD
#define MV16_THRESHOLD	192
#define MV8_THRESHOLD	56

#define NEIGH_MOVE_THRESH 0	
// how much a block's MV must differ from his neighbour 
// to be search for INTER4V. The more, the faster...

/* sad16(0,0) bias; mpeg4 spec suggests nb/2+1 */
/* nb  = vop pixels * 2^(bpp-8) */
#define MV16_00_BIAS	(128+1)
#define MV8_00_BIAS	(0)

/* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
#define MV16_INTER_BIAS	512

/* Parameters which control inter/inter4v decision */
#define IMV16X16			5

/* vector map (vlc delta size) smoother parameters */
#define NEIGH_TEND_16X16	2
#define NEIGH_TEND_8X8		2

// fast ((A)/2)*2
//#define EVEN(A)		(((A)<0?(A)+1:(A)) & ~1)
//#define EVEN(A)		((A>>1) << 1)
#define EVEN(A)		(A & 0xfffffffe)
#define MVzero(A) ( ((A).x)==(0) && ((A).y)==(0) )
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) )


#define Diamond_search_limit 				10
#define L1 									2				//	Motion activity threshold
#define MAX3(x,y,z)      	  				MAX(MAX(x,y),z)
#define ThEES				  				512
#define ThEES_4				  				512/4
#define ThEES1				  				0

#ifdef DUMP_PMV_RESULT
  extern FILE *pmv_result_file;
#endif

/* default methods of Search, will be changed to function variable */


/*
 * Calculate the min/max range (in halfpixels)
 * relative to the _MACROBLOCK_ position
 */
/*
 * getref: calculate reference image pointer 
 * the decision to use interpolation h/v/hv or the normal image is
 * based on dx & dy.
 */

/* This is somehow a copy of get_ref, but with MV instead of X,Y */


/* prototypes for MainSearch functions, i.e. Diamondsearch, FullSearch or whatever */

extern int32_t (*MotionEstimation)(MACROBLOCK *const pMB,
				 MACROBLOCK *const pMB_mc,
		  		 uint32_t x, uint32_t y,
		 		 MBParam * const pParam,
		 		 Encoder *pEnc,
		 		 int32_t counter);

extern int32_t (*MotionEstimation_blocklast)(MACROBLOCK *const pMB_mc,
				 MBParam * const pParam,
				 Encoder *pEnc);

extern int32_t (*MotionEstimation_block0)(MACROBLOCK *const pMB,
				 Encoder *pEnc);

int32_t MotionEstimation_4MV(MACROBLOCK *const pMB,
				 MACROBLOCK *const pMB_mc,
		  		 uint32_t x, uint32_t y,
		 		 MBParam * const pParam,
		 		 Encoder *pEnc,
		 		 int32_t counter);

int32_t MotionEstimation_blocklast_4MV(MACROBLOCK *const pMB_mc,
				 MBParam * const pParam,
				 Encoder *pEnc);


int32_t MotionEstimation_block0_4MV(MACROBLOCK *const pMB,
				 Encoder *pEnc);

int32_t MotionEstimation_1MV(MACROBLOCK *const pMB,
				 MACROBLOCK *const pMB_mc,
		  		 uint32_t x, uint32_t y,
		 		 MBParam * const pParam,
		 		 Encoder *pEnc,
		 		 int32_t counter);


int32_t MotionEstimation_blocklast_1MV(MACROBLOCK *const pMB_mc,
				 MBParam * const pParam,
				 Encoder *pEnc);


int32_t MotionEstimation_block0_1MV(MACROBLOCK *const pMB,
				 Encoder *pEnc);


#if defined(CORE_VERSION_1)
extern __inline void
get_pmvdata0_4MV(const MACROBLOCK * const mbs,
         const int mb_width,
         const int x,
         const int counter,
		 VECTOR * const pmv,
		 MBParam * const pParam,FTMCP100_CODEC *pCodec);
#elif defined(CORE_VERSION_2)
extern __inline void
get_pmvdata0_4MV(const MACROBLOCK * const mbs,
         const int mb_width,
         const int x,
         const int counter,
		 VECTOR * const pmv,
		 MBParam * const pParam);
#else  
  #error "please define the version of core"    
#endif

extern __inline void
get_pmvdata1_4MV(const int x, int iWcount, int *a, int *b, int *c, int *d, MBParam * const pParam,FTMCP100_CODEC *pCodec);


#if defined(CORE_VERSION_1)
extern __inline void
get_pmvdata0_1MV(const MACROBLOCK * const mbs,
         const int mb_width,
         const int x,
         const int counter,
		 VECTOR * const pmv,
         MBParam * const pParam,FTMCP100_CODEC *pCodec);
#elif defined(CORE_VERSION_2)
extern __inline void
get_pmvdata0_1MV(const MACROBLOCK * const mbs,
         const int mb_width,
         const int x,
         const int counter,
		 VECTOR * const pmv,
         MBParam * const pParam);
#endif


extern __inline void
get_pmvdata1_1MV(const int x, int iWcount, int *a, int *b, int *Z,FTMCP100_CODEC *pCodec);


#endif							/* _MOTION_H_ */