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/*
stores macroblock infos
Copyright (C) 2000 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#ifndef __MACROBLOCK_H
#define __MACROBLOCK_H
#include "videoDecoder.h"
#include "decoderClass.h"
#include "motionVector.h"
#include "recon.h"
#include "copyFunctions.h"
class MacroBlock {
/* Macroblock structure. */
int mb_address; /* Macroblock address. */
int past_mb_addr; /* Previous mblock address. */
int motion_h_forw_code; /* Forw. horiz. motion vector code. */
unsigned int motion_h_forw_r; /* Used in decoding vectors. */
int motion_v_forw_code; /* Forw. vert. motion vector code. */
unsigned int motion_v_forw_r; /* Used in decdoinge vectors. */
int motion_h_back_code; /* Back horiz. motion vector code. */
unsigned int motion_h_back_r; /* Used in decoding vectors. */
int motion_v_back_code; /* Back vert. motion vector code. */
unsigned int motion_v_back_r; /* Used in decoding vectors. */
unsigned int cbp; /* Coded block pattern. */
int mb_intra; /* Intracoded mblock flag. */
int bpict_past_forw; /* Past B frame forw. vector flag. */
int bpict_past_back; /* Past B frame back vector flag. */
int past_intra_addr; /* Addr of last intracoded mblock. */
int recon_right_for_prev; /* Past right forw. vector. */
int recon_down_for_prev; /* Past down forw. vector. */
int recon_right_back_prev; /* Past right back vector. */
int recon_down_back_prev; /* Past down back vector. */
class VideoDecoder* vid_stream;
CopyFunctions* copyFunctions;
public:
MacroBlock(class VideoDecoder* vid_stream);
~MacroBlock();
int processMacroBlock(PictureArray* pictureArray);
int resetMacroBlock();
int resetPastMacroBlock();
private:
int reconstruct(int& recon_right_for,
int& recon_down_for,
int& recon_right_back,
int& recon_down_back,
int& mb_motion_forw,
int& mb_motion_back,
PictureArray* pictureArray);
void computeForwVector(int* recon_right_for_ptr,
int* recon_down_for_ptr);
void computeBackVector(int* recon_right_back_ptr,
int* recon_down_back_ptr);
int processSkippedPictures(PictureArray* pictureArray,
int code_type,
int mb_width);
void ProcessSkippedPFrameMBlocks(YUVPicture* current,
YUVPicture* future,
int mb_width);
void ProcessSkippedBFrameMBlocks(Picture* picture,
YUVPicture* past,
YUVPicture* current,
YUVPicture* future,
int mb_width);
void ReconSkippedBlock(unsigned char* source,unsigned char* dest,
int row, int col,int row_size,
int right,int down,
int right_half,int down_half,int width,
int maxLen);
};
#endif
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