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Revision 914 - (download) (annotate)
Mon Mar 10 00:38:49 2003 UTC (16 years ago) by edgomez
File size: 5755 byte(s)
2003-03-10 00:36:15 GMT	Edouard Gomez <ed.gomez@free.fr>	patch-4

    Summary:
      Adds extended stats support even for bframes in xvidcore.
    Revision:
      xvidcore--devapi4--1.0--patch-4

    This patch enables core extended stats support even for bframes. It
    modifies the way the MBTransQuantBVOP function does its work. It used
    to not dequant, idct the MB because bframes are never used as reference
    frames. However if we want to compute stats, then we must perform these
    inverse transformations.

    modified files:
     src/encoder.c src/utils/mbfunctions.h src/utils/mbtransquant.c
/**************************************************************************
 *
 *  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 <isibaar@videocoding.de>
 *
 **************************************************************************/

#ifndef _ENCORE_BLOCK_H
#define _ENCORE_BLOCK_H

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



/** MotionEstimation **/

bool MotionEstimation(MBParam * const pParam,
					  FRAMEINFO * const current,
					  FRAMEINFO * const reference,
					  const IMAGE * const pRefH,
					  const IMAGE * const pRefV,
					  const IMAGE * const pRefHV,
					  const uint32_t iLimit);


bool SMP_MotionEstimation(MBParam * const pParam,
                                          FRAMEINFO * const current,
                                          FRAMEINFO * const reference,
                                          const IMAGE * const pRefH,
                                          const IMAGE * const pRefV,
                                          const IMAGE * const pRefHV,
                                          const uint32_t iLimit);



/** MBMotionCompensation **/

void
MBMotionCompensation(MACROBLOCK * const mb,
					 const uint32_t i,
					 const uint32_t j,
					 const IMAGE * const ref,
					 const IMAGE * const refh,
					 const IMAGE * const refv,
					 const IMAGE * const refhv,
					 const IMAGE * const refGMC,
					 IMAGE * const cur,
					 int16_t * dct_codes,
					 const uint32_t width,
					 const uint32_t height,
					 const uint32_t edged_width,
					 const int32_t quarterpel,
					 const int reduced_resolution,
					 const int32_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 */
	);


void MBTransQuantIntra2(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,
						  FRAMEINFO * frame,
						  MACROBLOCK * pMB,
						  const uint32_t x_pos,
						  const uint32_t y_pos,
						  int16_t data[6 * 64],
						  int16_t qcoeff[6 * 64]);


uint8_t MBTransQuantInter2(const MBParam * pParam,
						  FRAMEINFO * frame,
						  MACROBLOCK * pMB,
						  const uint32_t x_pos,
						  const uint32_t y_pos,	
						  int16_t data[6 * 64],
						  int16_t qcoeff[6 * 64]);

uint8_t MBTransQuantInterBVOP(const MBParam * pParam,
						  FRAMEINFO * frame,
						  MACROBLOCK * pMB,
						  const uint32_t x_pos,
						  const uint32_t y_pos,
						  int16_t data[6 * 64],
						  int16_t qcoeff[6 * 64]);

void MBTrans(const MBParam * pParam,
						  FRAMEINFO * frame,
						  MACROBLOCK * pMB,
						  const uint32_t x_pos,
						  const uint32_t y_pos,
						  int16_t data[6 * 64]);

void MBfDCT(const MBParam * pParam,
			FRAMEINFO * frame,
			MACROBLOCK * pMB,
			int16_t data[6 * 64]);

uint8_t MBQuantInter(	 const MBParam * pParam,
						 const int iQuant,
						 int16_t data[6 * 64],
						 int16_t qcoeff[6 * 64]);

void MBQuantDeQuantIntra(const MBParam * pParam,
					  	 FRAMEINFO * frame,
						 MACROBLOCK *pMB,
				  		 int16_t qcoeff[6 * 64],
  				  		 int16_t data[6*64]);

void MBQuantIntra(		 const MBParam * pParam,
					  	 FRAMEINFO * frame,
						 MACROBLOCK *pMB,
				  		 int16_t qcoeff[6 * 64],
				  		 int16_t data[6*64]);

void MBDeQuantIntra(const MBParam * pParam,
			   		const int iQuant,
				  	int16_t qcoeff[6 * 64],
				  	int16_t data[6*64]);

void MBDeQuantInter(const MBParam * pParam,
					const int iQuant,
					int16_t data[6 * 64],
					int16_t qcoeff[6 * 64],
				  	const uint8_t cbp);


void MBiDCT(		int16_t data[6 * 64], 
					const uint8_t cbp);


void MBTransAdd(	const MBParam * pParam,
					FRAMEINFO * frame,
					MACROBLOCK * pMB,
					const uint32_t x_pos,
					const uint32_t y_pos,
					int16_t data[6 * 64],
					const uint8_t cbp);



/** interlacing **/

uint32_t MBDecideFieldDCT(int16_t data[6 * 64]);	/* <- decide whether to use field-based DCT
													   for interlacing */

typedef uint32_t (MBFIELDTEST) (int16_t data[6 * 64]);	/* function pointer for field test */
typedef MBFIELDTEST *MBFIELDTEST_PTR;

/* global field test pointer for xvid.c */
extern MBFIELDTEST_PTR MBFieldTest;

/* field test implementations */
MBFIELDTEST MBFieldTest_c;
MBFIELDTEST MBFieldTest_mmx;

void MBFrameToField(int16_t data[6 * 64]);	/* de-interlace vertical Y blocks */


/** MBCoding.c **/

/* void MBSkip(Bitstream * bs);  just the bitstream. Since MB is skipped, no info is needed */


void MBCoding(const FRAMEINFO * const 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

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