mefunctions.h

经典的MP4编解码核心库

/*
 * Header file for Motion Estimation and Compensation
 *
 */

#ifndef _MEFUN_H_
#define _MEFUN_H_


#include "../global.h"


typedef uint32_t (sad16Func)(const uint8_t * const cur,
						 const uint8_t * const ref,
						 const uint32_t stride);


typedef sad16Func* sad16FuncPtr;	

extern sad16FuncPtr sad16x16;
sad16Func sad16x16_c;
sad16Func sad16x16_mmx;
sad16Func sad16x16_xmm;
sad16Func sad16x16_sse2;

typedef uint32_t (sad8Func)(const uint8_t * const cur,
						const uint8_t * const ref,
						const uint32_t stride);


typedef sad8Func* sad8FuncPtr;	

extern sad8FuncPtr sad8;
sad8Func sad8_c;
sad8Func sad8_mmx;
sad8Func sad8_xmm;


typedef uint32_t (dev16Func)(const uint8_t * const cur,
				const uint32_t stride, int32_t * const mean);


typedef dev16Func *dev16FuncPtr;	

extern dev16FuncPtr dev16;
dev16Func dev16_c;
dev16Func dev16_mmx;
dev16Func dev16_xmm;
dev16Func dev16_sse2;

// Added by David, 2002
// Compute the diviation of frame difference
typedef uint32_t (dev16_mv0_Func)(const uint8_t * const cur, const uint8_t * const ref,
				const uint32_t stride);

typedef dev16_mv0_Func *dev16_mv0_FuncPtr;	

extern dev16_mv0_FuncPtr dev16_mv0;
dev16_mv0_Func dev16_mv0_c;
dev16_mv0_Func dev16_mv0_mmx;

// Compute the mean of macroblock
typedef uint32_t (mean16Func)(const uint8_t * const cur, const uint32_t stride);

typedef mean16Func *mean16FuncPtr;	

extern mean16FuncPtr mean16;
mean16Func mean16_c;
mean16Func mean16_mmx;
mean16Func mean16_xmm;
mean16Func mean16_sse2;

#endif /* _MEFUN_H_ */