h263.h

audio-video-codecs.rar语音编解码器

  Ipp32s  width;
  Ipp32s  height;
  Ipp32s  scalability_type;
} h263_PictureFormat;

/* Video Object Plane with Ipp16s header Info */
typedef struct _h263_VideoPictureH263 {
    Ipp32s      temporal_reference;
    Ipp32s      split_screen_indicator;
    Ipp32s      document_camera_indicator;
    Ipp32s      full_picture_freeze_release;
    Ipp32s      picture_coding_type;
    Ipp32s      plusptype;

    Ipp32s      prev_temporal_reference;

    h263_PTYPEmodes    modes;
    h263_OPPTYPEmodes  oppmodes;
    h263_PictureFormat format;
    Ipp32s      width;
    Ipp32s      height;
    Ipp32s      MacroBlockPerRow;
    Ipp32s      MacroBlockPerCol;

    /* plusptype fields  */
    Ipp32s      ufep;
    Ipp32s      PCF;
    Ipp32s      prev_PCF;
    Ipp32s      rtype;

    Ipp32s      CPM;
    Ipp32s      PSBI;
    Ipp32s      PAR_code;
    Ipp32s      PAR_width;
    Ipp32s      PAR_height;

    Ipp32s      pic_quant;
    Ipp32s      gob_number;
    Ipp32s      num_gobs_in_pic;
    Ipp32s      RowsPerGOB;
    Ipp32s      quant_scale;

    Ipp32s      GSBI;
    Ipp32s      GFID;

    Ipp32s      clock_conversion_code;
    Ipp32s      clock_divisor;
    Ipp32s      prev_clock_conversion_code;
    Ipp32s      prev_clock_divisor;
    Ipp32s      ext_temporal_reference;
    Ipp32s      unlimited_UMV;
    Ipp32s      sliceSubmodes; /* bit 1 - Rectangular slices; bit 2 - Arbitrary slice ordering */

    Ipp32s      enh_layer_num;
    Ipp32s      ref_layer_num;
    Ipp32s      RPSflags;

    Ipp32s      pred_temp_ref;

    Ipp32s      temporal_reference_B;
    Ipp32s      dbquant;

    Ipp32s      implicit_resample;
    Ipp32s      wda;
    IppMotionVector warpParams[4];
    Ipp32s      fillMode;
    Ipp32s      fillColor[3];

} h263_VideoPicture;

typedef struct _h263_EnhancedLayer {
  h263_Frame    c_Frame;
  h263_Frame    r_Frame;
  h263_Frame    n_Frame;
  h263_Frame    *l_Frame;  /* reference frame from the lower reference layer */
  h263_Frame    *v_Frame;  /* frame for output */
  h263_Frame    a_Frame;   /* aux frame used in resampling */
  IppMotionVector warpParams[4];
  Ipp32s        picIndex;
} h263_EnhancedLayer;

/* Video Sequence Info */
typedef struct _h263_VideoSequence {
    h263_Frame              cFrame;       /* current */
    h263_Frame              rFrame;       /* reference in past */
    h263_Frame              nFrame;       /* B-parts of PB-frames / B-frames */
    h263_Frame              bFrame;       /* B-frames */
    h263_Frame              aFrame;       /* aux frame used in resampling */
    h263_Frame              *vFrame;      /* frame for display */
    h263_Frame              *refFrame;    /* ptr to reference frame, used in resampling */
    h263_VideoPicture       VideoPicture;
    h263_OPPTYPEmodes       oppmodes[H263_MAX_ENH_LAYERS + 1];  /* layers 1(base)-15 */
    h263_PictureFormat      format[H263_MAX_ENH_LAYERS + 1];
    Ipp32s                  prev_pic_type[H263_MAX_ENH_LAYERS + 1];
    Ipp32s                  ref_layer_num[H263_MAX_ENH_LAYERS + 1] ;
    Ipp32s                  ref_layer_num_b[H263_MAX_ENH_LAYERS + 1];
    h263_EnhancedLayer      *enhLayers[H263_MAX_ENH_LAYERS];

    h263_MacroBlock         *MBinfo;
    Ipp32s                  num_of_MBs;
    Ipp32s                  frameCount;
    Ipp32s                  frameInterval;
    Ipp32s                  frameScale;
    Ipp32s                  picture_time_increment_resolution;
    Ipp32s                  PicIndex;
    h263_IntraPredBuff      IntraPredBuff;
    Ipp8u                   GOBboundary[72]; /* max mbPerCol */
    IppMotionVector         *Bmv; /* motion vector predictors (forw and back) in B-frames */

    IppMotionVector         warpParams[4];
    Ipp32s                  fillMode;
    Ipp32s                  fillColor[3];


    /*  h263_DataPartMacroBlock*     DataPartBuff; */
    Ipp32s                  Ppics_to_show;
    Ipp32s                  Bpics_to_show;
    /* for B-Frame direct mode */
    Ipp32s                   TRB, TRD;
    /* time increment of past and future frame for B-frame */
    Ipp64s                  rTime, nTime;
    /* Picture global time */
    Ipp64s                  pic_time, pic_time_pb;
    Ipp64s                  ref_pic_time, prevP_pic_time;
    Ipp32s                  ref_temporal_reference, prevP_temporal_reference;

    h263_Statistic          Statistic;
} h263_VideoSequence;

#ifdef _OMP_KARABAS
/* MacroBlock Info for MT */
typedef struct _h263_MacroBlockMT {
    Ipp16s    dctCoeffs[64*6];
    Ipp16s    dctCoeffs_B[64*6];
    IppMotionVector mvF[4];     // PB-Frame
    IppMotionVector mvB[4];     // PB-Frame
    Ipp8u     lnz[12];
    Ipp8u     cbpy;
    Ipp8u     cbpc;
    Ipp8u     bmb_type;         // PB-Frame
    Ipp8u     cbpb;             // PB-Frame
} h263_MacroBlockMT;
#endif // _OMP_KARABAS

/* Full Info */
typedef struct _h263_Info {
    Ipp8u*      buffer;         /* buffer header for saving H.263++ stream */
    size_t      buflen;         /* total buffer length */
    Ipp8u*      bufptr;         /* current frame, point to header or data */
    Ipp32s      bitoff;         /* mostly point to next frame header or PSC */
    h263_VideoSequence    VideoSequence;
#ifdef _OMP_KARABAS
    vm_thread_priority mTreadPriority;
    h263_MacroBlockMT*  pMBinfoMT;  /* OpenMP buffer */
#endif // _OMP_KARABAS
    Ipp32s      number_threads;       /* OpenMP number of threads */
    Ipp32s      stopOnErr;
} h263_Info;

/* bitstream functions */
extern Ipp32s     h263_RemainStream(h263_Info* pInfo);
extern Ipp8u*     h263_FindStartCodePtr(h263_Info* pInfo);
extern Ipp32s     h263_SeekStartCodePtr(h263_Info* pInfo);
extern Ipp32s h263_SeekGOBStartCodePtr(h263_Info* pInfo);
/* extern Ipp32s     h263_CheckResyncMarker(h263_Info* pInfo, Ipp32s rml); */

/* tables */
typedef struct _h263_VLC1 {
    Ipp8u  code;
    Ipp8u  len;
} h263_VLC1;
extern const Ipp8u h263_cCbCrMvRound16[];
extern const Ipp8s h263_dquant[];
extern const Ipp8s h263_dquant_Mod[2][31];
extern const Ipp8u h263_quant_c[];
extern const h263_VLC1 h263_cbpy[];
extern const Ipp8u h263_Pmb_type[];
extern const Ipp8u h263_Pmb_cbpc[];
extern const Ipp8u h263_Pmb_bits[];
extern const h263_VLC1 h263_Bmb_type[];
extern const h263_VLC1 h263_Bmb_cbpc[];
extern const h263_VLC1 h263_EPmb_type_0[];
extern const h263_VLC1 h263_EPmb_type_1[];
extern const h263_VLC1 h263_EImb_type[];
extern const h263_VLC1 h263_MVD_T14_1[];
extern const h263_VLC1 h263_MVD_T14_2[];
extern const Ipp32s h263_pic_width[];
extern const Ipp32s h263_pic_height[];
extern const Ipp32s h263_mblocks_in_gob[];
extern const Ipp32s h263_gobs_in_pic[];

// project functions
//extern void       h263_Error(Ipp8s *str);
#define h263_Error(str)
extern h263_Status h263_InitDecoder(h263_Info *pInfo, Ipp8s *h263FileName);
extern h263_Status h263_CloseDecoder(h263_Info *pInfo);
extern h263_Status h263_InitVSeq(h263_Info *pInfo, Ipp32s mbPerRow, Ipp32s mbPerCol);
extern h263_Status h263_FreeVSeq(h263_Info *pInfo);
extern h263_Status h263_Decoder(h263_Info *pInfo);

extern h263_Status h263_Parse_PictureHeader(h263_Info* pInfo);
extern Ipp32s h263_ParseGOBHeader(h263_Info* pInfo);

extern h263_Status h263_DecodeVideoPicture(h263_Info* pInfo);

extern Ipp32s h263_Check_Resize(h263_Info* pInfo);

#ifdef _OMP_KARABAS
#ifdef _OPENMP
#include <omp.h>
#endif
extern Ipp32s h263_GetNumOfThreads(void);
#endif // _OMP_KARABAS

#ifndef H263_USE_INLINE_BITS_FUNC
extern Ipp32u h263_ShowBits(h263_Info* pInfo, Ipp32s n);
extern Ipp32u h263_ShowBit(h263_Info* pInfo);
extern Ipp32u h263_ShowBits9(h263_Info* pInfo, Ipp32s n);
extern void   h263_FlushBits(h263_Info* pInfo, Ipp32s n);
extern Ipp32u h263_GetBits(h263_Info* pInfo, Ipp32s n);
extern Ipp32u h263_GetBits9(h263_Info* pInfo, Ipp32s n);
extern void   h263_AlignBits(h263_Info* pInfo);
extern Ipp32u h263_ShowBitsAlign(h263_Info* pInfo, Ipp32s n);
#else

__INLINE Ipp32u h263_ShowBits(h263_Info* pInfo, Ipp32s n)
{
    Ipp8u* ptr = pInfo->bufptr;
    Ipp32u tmp = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] <<  8) | (ptr[3]);
    tmp <<= pInfo->bitoff;
    tmp >>= 32 - n;
    return tmp;
}

__INLINE Ipp32u h263_ShowBit(h263_Info* pInfo)
{
    Ipp32u tmp = pInfo->bufptr[0];
    tmp >>= 7 - pInfo->bitoff;
    return (tmp & 1);
}

__INLINE Ipp32u h263_ShowBits9(h263_Info* pInfo, Ipp32s n)
{
    Ipp8u* ptr = pInfo->bufptr;
    Ipp32u tmp = (ptr[0] <<  8) | ptr[1];
    tmp <<= (pInfo->bitoff + 16);
    tmp >>= 32 - n;
    return tmp;
}

__INLINE void h263_FlushBits(h263_Info* pInfo, Ipp32s n)
{
    n = n + pInfo->bitoff;
    pInfo->bufptr += n >> 3;
    pInfo->bitoff = n & 7;
}

__INLINE Ipp32u h263_GetBits(h263_Info* pInfo, Ipp32s n)
{
    Ipp8u* ptr = pInfo->bufptr;
    Ipp32u tmp = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] <<  8) | (ptr[3]);
    tmp <<= pInfo->bitoff;
    tmp >>= 32 - n;
    n = n + pInfo->bitoff;
    pInfo->bufptr += n >> 3;
    pInfo->bitoff = n & 7;
    return tmp;
}

__INLINE Ipp32u h263_GetBits9(h263_Info* pInfo, Ipp32s n)
{
    Ipp8u* ptr = pInfo->bufptr;
    Ipp32u tmp = (ptr[0] <<  8) | ptr[1];
    tmp <<= (pInfo->bitoff + 16);
    tmp >>= 32 - n;
    n = n + pInfo->bitoff;
    pInfo->bufptr += n >> 3;
    pInfo->bitoff = n & 7;
    return tmp;
}

__INLINE void h263_AlignBits(h263_Info* pInfo)
{
    if (pInfo->bitoff > 0) {
        pInfo->bitoff = 0;
        (pInfo->bufptr)++;
    }
}

__INLINE Ipp32u h263_ShowBitsAlign(h263_Info* pInfo, Ipp32s n)
{
    Ipp8u* ptr = pInfo->bitoff ? (pInfo->bufptr + 1) : pInfo->bufptr;
    Ipp32u tmp = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] <<  8) | (ptr[3]);
    tmp >>= 32 - n;
    return tmp;
}

#endif // H263_USE_INLINE_BITS_FUNC

__INLINE Ipp32u h263_GetBit(h263_Info* pInfo)
{
    Ipp32u tmp = pInfo->bufptr[0];
    if (pInfo->bitoff != 7) {
        tmp >>= 7 - pInfo->bitoff;
        pInfo->bitoff ++;
    } else {
        pInfo->bitoff = 0;
        pInfo->bufptr ++;
    }
    return (tmp & 1);
}

__INLINE Ipp32s h263_GetMarkerBit(h263_Info* pInfo) {
    if (!h263_GetBit(pInfo)) {
        h263_Error("Error in video_header: wrong marker bit");
        return 0;
    }
    return 1;
}

#ifdef __cplusplus
}
#endif

#endif  /* _H263_H_  */