intrapred.h

Nokia H.264/AVC Encoder/Decoder Usage Manual

/*
COPYRIGHT, LICENSE AND WARRANTY INFORMATION

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limited license under copyrights owned by Nokia to use the Software for 
the sole purpose of creating, manufacturing, selling, marketing, or  
distributing (including the right to make modifications to the Software) 
a fully compliant decoder implementation (hereinafter "Decoder") of 
ITU-T Recommendation H.264 / ISO/IEC International Standard 14496-10 and 
an encoder implementation producing output that is decodable with the 
Decoder.

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*/



#ifndef _INTRAPRED_H_
#define _INTRAPRED_H_


#include "globals.h"
#include "framebuffer.h"


/*
 * Intra prediction modes
 */

/* Luma 4x4 prediction modes */
#define IPR_NUM_MODES1            9
#define IPR_MODE_VERT             0
#define IPR_MODE_HOR              1
#define IPR_MODE_DC               2
#define IPR_MODE_DIAG_DOWN_LEFT   3
#define IPR_MODE_DIAG_DOWN_RIGHT  4
#define IPR_MODE_VERT_RIGHT       5
#define IPR_MODE_HOR_DOWN         6
#define IPR_MODE_VERT_LEFT        7
#define IPR_MODE_HOR_UP           8
#define IPR_MODE_NA               9

/* Luma 16x16 prediction modes */
#define IPR_NUM_MODES2   4
#define IPR_MODE2_VERT   0
#define IPR_MODE2_HOR    1
#define IPR_MODE2_DC     2
#define IPR_MODE2_PLANE  3

/* Chroma 8x8 prediction modes */
#define IPR_CHROMA_NUM_MODES    4
#define IPR_CHROMA_MODE_DC      0
#define IPR_CHROMA_MODE_HOR     1
#define IPR_CHROMA_MODE_VERT    2
#define IPR_CHROMA_MODE_PLANE   3


void iprPredLuma4x4blocks(int coef[BLK_PER_MB][BLK_PER_MB][BLK_SIZE][BLK_SIZE],
                          u_int8 *reco, int picWidth, int8 *ipModes,
                          int mbAvailBits, int mbIdxX, int mbIdxY, int cbp, int qp);

int iprPredLuma16x16(u_int8 predBlk[MBK_SIZE][MBK_SIZE], int mode,
                     u_int8 *reco, int picWidth, int mbAvailBits);

int iprPredChroma(u_int8 pred[MBK_SIZE/2][MBK_SIZE],
                  u_int8 *recoU, u_int8 *recoV,
                  int width, int mbAvailBits, int mode);

void iprClearMBintraPred(int8 *modesLeftPred, int8 *modesUpPred);

void iprPutIntraModes(int mbAvailBits, int8 *ipModes,
                      int8 *modesLeftPred, int8 *modesUpPred);


#endif