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Viewing changes to mpeglib/lib/mpegplay/macroBlock.h

  • Committer: Bazaar Package Importer
  • Author(s): Martin Schulze
  • Date: 2003-01-22 15:00:51 UTC
  • Revision ID: james.westby@ubuntu.com-20030122150051-uihwkdoxf15mi1tn
Tags: upstream-2.2.2
Import upstream version 2.2.2

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mpeglib/lib/mpegplay/macroBlock.h
 
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/*
 
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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