mbfunctions.h

用MPEG-4对YUV视频文件编码压缩成divx视频文件

/**************************************************************************
 *
 *  Modifications:
 *
 *  29.03.2002 removed MBFieldToFrame - no longer used (transfers instead)
 *  26.03.2002 interlacing support
 *  02.12.2001 motion estimation/compensation split
 *  16.11.2001 const/uint32_t changes to MBMotionEstComp()
 *  26.08.2001 added inter4v_mode parameter to MBMotionEstComp()
 *
 *  Michael Militzer <[e-mail]>
 *
 **************************************************************************/

#ifndef _ENCORE_BLOCK_H
#define _ENCORE_BLOCK_H

#include "../encoder.h"
#include "../bitstream/bitstream.h"



/**================ MotionEstimation=============**/
void MotionEstimation(MBParam * const pParam,
					  FRAMEINFO * const current,
					  FRAMEINFO * const reference,
					  const IMAGE * const pRefH,
					  const IMAGE * const pRefV,
					  const IMAGE * const pRefHV,int * mad);


/**================ MBMotionCompensation =========**/
void MBMotionCompensation(MACROBLOCK * const pMB,
						  const uint32_t j,
						  const uint32_t i,
						  const IMAGE * const pRef,
						  const IMAGE * const pRefH,
						  const IMAGE * const pRefV,
						  const IMAGE * const pRefHV,
						  IMAGE * const pCurrent,
						  int16_t dct_codes[6 * 64],
						  const uint32_t width,
						  const uint32_t height,
						  const uint32_t edged_width,
						  const uint32_t rounding);


/**=============== MBTransQuant.c==================== **/

void MBTransQuantIntra(const MBParam * pParam,
					   FRAMEINFO * frame,
					   MACROBLOCK * pMB,
					   const uint32_t x_pos,	/* <-- The x position of the MB to be searched */

					   const uint32_t y_pos,	/* <-- The y position of the MB to be searched */

					   int16_t data[6 * 64],	/* <-> the data of the MB to be coded */

					   int16_t qcoeff[6 * 64]	/* <-> the quantized DCT coefficients */
	);


uint8_t MBTransQuantInter(const MBParam * pParam,	/* <-- the parameter for DCT transformation and Quantization */

						  FRAMEINFO * frame,
						  MACROBLOCK * pMB,
						  const uint32_t x_pos,	/* <-- The x position of the MB to be searched */

						  const uint32_t y_pos,	/* <-- The y position of the MB to be searched */

						  int16_t data[6 * 64],	/* <-> the data of the MB to be coded */

						  int16_t qcoeff[6 * 64]	/* <-> the quantized DCT coefficients */
	);




/**=================== MBCoding.c ==========================**/
   
int16_t MBCoding(const FRAMEINFO * frame,	/* <-- the parameter for coding of the bitstream */

			  MACROBLOCK * pMB,	/* <-- Info of the MB to be coded */

			  int16_t qcoeff[6 * 64],	/* <-- the quantized DCT coefficients */

			  Bitstream * bs,	/* <-> the bitstream */

			  Statistics * pStat	/* <-> statistical data collected for current frame */
	);

#endif