mpeg2encoder_params.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef MPEG2_PARAMS_H_
#define MPEG2_PARAMS_H_

#include "vm_event.h"

/* picture type */
enum
{
  I_TYPE = 1,
  P_TYPE = 2,
  B_TYPE = 3,
};

/* chroma_format */
#define CHROMA420 1
#define CHROMA422 2
#define CHROMA444 3

/* debug defines */
#define PSNR_LOG        1
#define FRAME_SIZE_LOG  2
#define MVS_LOG         4
#define QUANT_LOG       8
#define LOG_SAVE_BMP   16

/* ///////////////////////////////////////////////////////////////
// The following enumerator defines a status of MPEG2 operations
// Negative value means error.
*/
typedef enum {
  /* Errors */
  MPEG2_StsErr        = -1,  /* Unspecified error */
  /* Ok */
  MPEG2_StsOk         =  0,  /* No error, it's OK */
  /* Warnings */
  MPEG2_StsWarn       =  1   /* Unspecified warning */
} MPEG2_Status;

#define MPEG2_Ok  MPEG2_StsOk

// maximum string length in parameter file
#define PAR_STRLEN 256

// used to specify motion estimation ranges for different types of pictures
typedef struct _MotionData  // motion data
{
  int forw_hor_f_code;  // vector range horizontal, forward
  int forw_vert_f_code; // vector range vertical, forward
  int SearchWidthF;     // search range horizontal, forward
  int SearchHeightF;    // search range vertical, forward
  int back_hor_f_code;  // vector range horizontal, backward
  int back_vert_f_code; // vector range vertical, backward
  int SearchWidthB;     // search range horizontal, backward
  int SearchHeightB;    // search range vertical, backward
  int f_forw_hor;       //(1 << (forw_hor_f_code - 1)
  int f_forw_ver;       //(1 << (forw_ver_f_code - 1)
  int f_back_hor;       //(1 << (back_hor_f_code - 1)
  int f_back_ver;       //(1 << (back_ver_f_code - 1)
} MotionData;

class ippMPEG2EncoderParams //: public VideoEncoderParams
{
public:
  int     src_width;
  int     src_height;
  int     dst_width;
  int     dst_height;
  int     numStartFrame;
  int     numFramesToEncode;
  int     numEncodedFrames;
  double  FrameRate;
  int     BitRate;

  ippMPEG2EncoderParams();
  ~ippMPEG2EncoderParams();
  void ippMPEG2EncoderParams::operator=(ippMPEG2EncoderParams &p);
  MPEG2_Status ReadParamFile(vm_char *FileName);     // opens and reads MSSG standard par-file
  MPEG2_Status ReadOldParamFile(vm_char *FileName);  // opens and reads cutted par-file (obsolete)
  MPEG2_Status ReadQMatrices();
  MPEG2_Status Profile_and_Level_Checks();
  MPEG2_Status RelationChecks();

  //!!!!!!!!IF CHANGE STRUCTURE OF MEMBERS PLEASE BE CAREFUL!!!!
  //!!!!!!!!!!!!!!!!!!WITH MEMSETS IN CONSTRUCTOR!!!!!!!!!!!!!!!
  vm_char err_warn_message[256];
  vm_char SrcFName[PAR_STRLEN];
  vm_char                  IntraQMatrixFName[PAR_STRLEN];
  vm_char                  NonIntraQMatrixFName[PAR_STRLEN];
  vm_char                  TemplateLogFile[PAR_STRLEN];
  VM_ALIGN16_DECL(Ipp16s)  IntraQMatrix[64];
  VM_ALIGN16_DECL(Ipp16s)  NonIntraQMatrix[64];
  MotionData               *pMotionData; // motion estimation ranges for P, B0, B1, ...

  int                      prog_seq;          // progressive sequence
  int                      progressive_frame; // progressive frame
  int                      LogMask;
  int                      CustomIntraQMatrix;
  int                      CustomNonIntraQMatrix;
  int                      IPDistance;        // distance between key-frames
  int                      gopSize;           // size of GOP
  int                      frame_rate_code;   // code for values, specified in standard
  int                      aspectRatio;
  int                      ProfileID;
  int                      LevelID;
  int                      chroma_format;
  int                      repeat_first_field;
  int                      top_field_first;         // display top field first
  int                      intra_dc_precision;
  int                      FieldPicture;            // field or frame picture (if progframe=> frame)
  int                      VBV_BufferSize;
  int                      low_delay;

  int                      nonLinearQScale[3];      // sets of params for I,P,B
  int                      frame_pred_frame_dct[3]; //
  int                      intraVLCFormat[3];       //
  int                      mpeg1;                   // 1 - mpeg1, 0 - mpeg2

  vm_char                  idStr[PAR_STRLEN];       // user data to put to each sequence
  int                      lFlags;                  // Flags of the encoding.
  int                      numThreads;              // not tested, use 1
  double                   performance;
  double                   encode_time;

  int                      me_alg_num;

  // added for standard parameter file
  int inputtype;   // format of input raw data
  int constrparms; // used only with mpeg1
  // sequence display extension // also uses dst_ from base clas
  int video_format, color_primaries, transfer_characteristics;
  int matrix_coefficients;
  // these fields are currently ignored
  int conceal_tab[3], altscan_tab[3];
};

#ifdef MPEG2_DEBUG_CODE
int mpeg2_write_bmp(char   *file_name,
                    int    width,
                    int    height,
                    int    pitch,
                    Ipp8u  *r,
                    Ipp8u  *g,
                    Ipp8u  *b);
#endif

#endif /* MPEG2_PARAMS_H_ */