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