vtcdec.cpp

完整的RTP RTSP代码库

  init_acm_maxf_dec();  // hjlee 0901 
  for (col=0; col<mzte_codec.m_iColors; col++) // hjlee 0901 BUG
	  for (l=0; l<mzte_codec.m_iWvtDecmpLev; l++) {
	    mzte_codec.m_SPlayer[col].SNRlayer.snr_image.wvtDecompNumBitPlanes[l] = 0;
//	    mzte_codec.m_SPlayer[col].SNRlayer.snr_image.wvtDecompResNumBitPlanes[l] = 0;
	  }


  
  for (col=0; col<mzte_codec.m_iColors; col++) {

    h = mzte_codec.m_iHeight >> (Int)(col>0);
    w  = mzte_codec.m_iWidth  >> (Int)(col>0);

		mzte_codec.m_SPlayer[col].coeffinfo = new COEFFINFO * [h];
		if (mzte_codec.m_SPlayer[col].coeffinfo == NULL)
			exit(fprintf(stderr,"Allocating memory for coefficient structure (I)."));
		mzte_codec.m_SPlayer[col].coeffinfo[0] = new COEFFINFO [h*w];
		if (mzte_codec.m_SPlayer[col].coeffinfo[0] == NULL)
			exit(fprintf(stderr,"Allocating memory for coefficient structure (II)."));
		int y;
		for (y = 1; y < h; ++y)
		  mzte_codec.m_SPlayer[col].coeffinfo[y] = 
			mzte_codec.m_SPlayer[col].coeffinfo[y-1]+w;
		
		for (y=0; y<h; y++)
			for (int x=0; x<w; x++) {
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].skip =0;
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].wvt_coeff = 0;
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].rec_coeff = 0;
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].quantized_value = 0;
				// mzte_codec.m_SPlayer[col].coeffinfo[y][x].qState = 0;
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].type = 0;
				mzte_codec.m_SPlayer[col].coeffinfo[y][x].mask = 0;

			}


  }
  noteDetail("Completed creating and initializing data structures.");

  mzte_codec.m_iDCHeight  = mzte_codec.m_iHeight >> mzte_codec.m_iWvtDecmpLev;
  mzte_codec.m_iDCWidth   = mzte_codec.m_iWidth >> mzte_codec.m_iWvtDecmpLev;

 
  /* copy over the inmask[0] */

  Width[0] = mzte_codec.m_iWidth;
  Width[1] = Width[2] = (Width[0] >> 1);
  Height[0] = mzte_codec.m_iHeight;
  Height[1] = Height[2] = (Height[0] >> 1);
  nLevels[0] = mzte_codec.m_iWvtDecmpLev ;
  nLevels[1] = nLevels[2] = nLevels[0]-1;
  
  Nx[0] = Ny[0]=2;
  for(col=1;col<3;col++) Nx[col]=Ny[col]=1;
  
// #ifdef _DECODER_  // hjlee
  mzte_codec.m_Image = Image;
// #endif
  for (col=0; col<mzte_codec.m_iColors; col++) {
    mzte_codec.m_Image[col].height = mzte_codec.m_iHeight >> (Int)(col>0);
    mzte_codec.m_Image[col].width  = mzte_codec.m_iWidth >> (Int)(col>0);

    inmask[col] = mzte_codec.m_Image[col].mask; 
    outmask[col] = (UChar *)malloc(sizeof(UChar) *  Width[col]*Height[col]);

    ret = do_DWTMask(inmask[col], outmask[col], 
		     Width[col], Height[col], 
		     nLevels[col], &(wvtfilter[col==0?0:1])); 
    if (ret!= DWT_OK) 
      errorHandler("DWT Error Code %d\n", ret);
    
    for (k=0,y=0; y<Height[col]; y++)
      for (x=0; x<Width[col]; x++) 
	COEFF_MASK(x,y,col) = outmask[col][k++];
    free(outmask[col]);
    
  }


  if (target_spatial_levels<=0 || target_snr_levels<= 0)
    errorHandler("Neither target_spatial_levels nor target_snr_levels" \
		 "can be zero");

  /*------- DC: Decode and inverse quantize all color components -------*/
  textureLayerDC_Dec();


  /*------- DC: Close bitstream file -------*/

  /* hjlee 0901 */ 
  if (mzte_codec.m_bStartCodeEnable){
    align_byte();
    if(!mzte_codec.m_iSingleBitFile)
      fclose(bitfile);
  }
  

  /*-------------------------------------------------*/
  /*--------------------- AC ------------------------*/
  /*-------------------------------------------------*/

  
  /*------- AC: SINGLE-QUANT MODE -------*/
  if (mzte_codec.m_iQuantType == SINGLE_Q) 
    textureLayerSQ_Dec(bitfile);
  /*------- AC: MULTI-QUANT MODE -------*/
  else if (mzte_codec.m_iQuantType == MULTIPLE_Q)
// hjlee 0901
    textureLayerMQ_Dec(bitfile, target_spatial_levels, target_snr_levels,
		       wvtfilter);
	
	/*------- AC: BILEVEL-QUANT MODE -------*/
  else if (mzte_codec.m_iQuantType == BILEVEL_Q) {
    PEZW_target_spatial_levels=target_spatial_levels;
    PEZW_target_snr_levels=target_snr_levels;
    PEZW_target_bitrate=0;
	textureLayerBQ_Dec(bitfile);
  }

  for(col=0; col< mzte_codec.m_iColors; col++)
    free(Image[col].mask);
  free(Image);

  if (mzte_codec.m_iSingleBitFile==0){
    if(!mzte_codec.m_bStartCodeEnable)
      align_byte();
    fclose(bitfile);
  }
} 

// hjlee 0901
Void CVTCDecoder::TextureObjectLayer_dec(
				   Int  target_spatial_levels,
				   Int  target_snr_levels, 
				   FILTER ***pwvtfilter,
           Int iTile, Int count, FILE *bitfile, Int **table, PICTURE *Image) // Modified by Sharp (99/2/16) // FPDAM : added by SAIT (99/09/03)
{
	

//  FILE *bitfile; // deleted by Sharp (99/2/16)
  Int  x,y,w,h,k;
  FILTER **wvtfilter;  // hjlee 0901
  UChar *inmask[3], *outmask[3];
  Int nLevels[3], ret;
  Int Width[3], Height[3];
  Int Nx[3], Ny[3];
  Int usemask;
  Int useInt=1;
  //  Int target_shape_layer = target_spatial_levels;
 // PICTURE *Image; deleted by SL 03/03/99
  Int l;
	Int col;

// FPDAM
	if(!mzte_codec.m_iAlphaChannel || mzte_codec.m_tiling_disable==1 || mzte_codec.m_iTextureTileType!=TRANSP_TILE) {

#if 0
	if ( mzte_codec.m_tiling_disable == 0 ) {
		tile_header_Dec();

  /*-------------------------------------------------*/
  /*--------- DC (and overall header info) ----------*/
  /*-------------------------------------------------*/

  /*------- DC: Open and initialize bitstream file -------*/
//deleted by SL@Sarnoff (03/03/99), 
	//Shape mask are decoded from header_Dec_common already
	//If you need the shape for the tiles, you have to write 
	// your own routines to extract it from the global mask
// begin: added by Sharp (99/2/16)
/*	if ( mzte_codec.m_tiling_disable == 0 ) {*/
/*   if(mzte_codec.m_iAlphaChannel)*/
/* 	noteProgress("Decoding Shape Information...");*/
/*  Image = (PICTURE *)malloc(sizeof(PICTURE)*3);*/
/*  get_virtual_mask(Image, mzte_codec.m_iWvtDecmpLev,*/
/*		   mzte_codec.m_iWidth, mzte_codec.m_iHeight, */
/*		   0, mzte_codec.m_iColors,*/
/*		   &target_shape_layer,*/
/*		   mzte_codec.m_bStartCodeEnable,*/
/*		   *pwvtfilter); //modified by SL @Sarnoff (03/03/99)*/
/*	}*/
// end: added by Sharp (99/2/16)
// end: deleted by SL@Sarnoff (03/03/99)
// begin: deleted by Sharp (99/2/16)
  if ((bitfile=fopen(m_cInBitsFile,"rb"))==NULL)
    errorHandler("Can't open file '%s' for reading.",m_cInBitsFile);

  /* initialize variables */
  init_bit_packing_fp(bitfile,1);

  /*------- DC: Read header info from bitstream file -------*/
  header_Dec(pwvtfilter, &Image); // hjlee 0901
// end: deleted by Sharp (99/2/16)
	}
#endif
  wvtfilter = *pwvtfilter; // hjlee 0901

  /*--------------- CREATE DATA STRUCTURES -----------------*/
  noteDetail("Creating and initializing data structures....");
  mzte_codec.m_iColors = 3;
  mzte_codec.m_iBitDepth = 8;  
  usemask = mzte_codec.m_iAlphaChannel;//= 0; // modified by SL@Sarnoff (03/03/99)
  useInt =1;

  init_acm_maxf_dec();  // hjlee 0901 
  for (col=0; col<mzte_codec.m_iColors; col++) // hjlee 0901 BUG
	  for (l=0; l<mzte_codec.m_iWvtDecmpLev; l++) {
	    mzte_codec.m_SPlayer[col].SNRlayer.snr_image.wvtDecompNumBitPlanes[l] = 0;
//	    mzte_codec.m_SPlayer[col].SNRlayer.snr_image.wvtDecompResNumBitPlanes[l] = 0;
	  }
  
//	if ( iTile == 0 ) // added by Sharp (99/2/16)
	if ( count == 0 ) // FPDAM: added by SAIT (99/09/03)
	{
		for (col=0; col<mzte_codec.m_iColors; col++) {

			h = mzte_codec.m_iHeight >> (Int)(col>0);
			w = mzte_codec.m_iWidth  >> (Int)(col>0);

			mzte_codec.m_SPlayer[col].coeffinfo = new COEFFINFO * [h];
			if (mzte_codec.m_SPlayer[col].coeffinfo == NULL)
				exit(fprintf(stderr,"Allocating memory for coefficient structure (I)."));
			mzte_codec.m_SPlayer[col].coeffinfo[0] = new COEFFINFO [h*w];
			if (mzte_codec.m_SPlayer[col].coeffinfo[0] == NULL)
				exit(fprintf(stderr,"Allocating memory for coefficient structure (II)."));
			for (/*int*/ y = 1; y < h; ++y)
				mzte_codec.m_SPlayer[col].coeffinfo[y] = 
				mzte_codec.m_SPlayer[col].coeffinfo[y-1]+w;
			
			for (y=0; y<h; y++)
				for (/*int*/ x=0; x<w; x++) {
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].skip =0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].wvt_coeff = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].rec_coeff = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].quantized_value = 0;
					// mzte_codec.m_SPlayer[col].coeffinfo[y][x].qState = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].type = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].mask = 0;

				}
		}
		noteDetail("Completed creating and initializing data structures.");
	} // added by Sharp (99/2/16)

  mzte_codec.m_iDCHeight  = mzte_codec.m_iHeight >> mzte_codec.m_iWvtDecmpLev;
  mzte_codec.m_iDCWidth   = mzte_codec.m_iWidth >> mzte_codec.m_iWvtDecmpLev;

 
  /* copy over the inmask[0] */

  Width[0] = mzte_codec.m_iWidth;
  Width[1] = Width[2] = (Width[0] >> 1);
  Height[0] = mzte_codec.m_iHeight;
  Height[1] = Height[2] = (Height[0] >> 1);
  nLevels[0] = mzte_codec.m_iWvtDecmpLev ;
  nLevels[1] = nLevels[2] = nLevels[0]-1;
  
  Nx[0] = Ny[0]=2;
  for(col=1;col<3;col++) Nx[col]=Ny[col]=1;
  
//#ifdef _DECODER_  // hjlee 
  mzte_codec.m_Image = Image;
//#endif
  for (col=0; col<mzte_codec.m_iColors; col++) {
    mzte_codec.m_Image[col].height = mzte_codec.m_iHeight >> (Int)(col>0);
    mzte_codec.m_Image[col].width  = mzte_codec.m_iWidth >> (Int)(col>0);

    inmask[col] = Image[col].mask; //mzte_codec.m_Image[col].mask; //modified by SL 03/03/99
    outmask[col] = (UChar *)malloc(sizeof(UChar) *  Width[col]*Height[col]);

    ret = do_DWTMask(inmask[col], outmask[col], 
		     Width[col], Height[col], 
		     nLevels[col], &(wvtfilter[col==0?0:1])); 
    if (ret!= DWT_OK) 
      errorHandler("DWT Error Code %d\n", ret);
    
    for (k=0,y=0; y<Height[col]; y++)
      for (x=0; x<Width[col]; x++) 
	COEFF_MASK(x,y,col) = outmask[col][k++];
    free(outmask[col]);
    
  }


  if (target_spatial_levels<=0 || target_snr_levels<= 0)
    errorHandler("Neither target_spatial_levels nor target_snr_levels" \
		 "can be zero");

  /*------- DC: Decode and inverse quantize all color components -------*/
  textureLayerDC_Dec();


  /*------- DC: Close bitstream file -------*/

  /* hjlee 0901 */ 
  if (mzte_codec.m_bStartCodeEnable){
    align_byte();
    if(!mzte_codec.m_iSingleBitFile)
      fclose(bitfile);
  }
  

  /*-------------------------------------------------*/
  /*--------------------- AC ------------------------*/
  /*-------------------------------------------------*/

#if 1  
//Added by Sarnoff for error resilience, 3/5/99
  if(!mzte_codec.m_usErrResiDisable)
	error_bits_stat(0); /* register the dc part as no error */
//End: Added by Sarnoff for error resilience, 3/5/99

  /*------- AC: SINGLE-QUANT MODE -------*/
  if (mzte_codec.m_iQuantType == SINGLE_Q) 
    textureLayerSQ_Dec(bitfile);
  /*------- AC: MULTI-QUANT MODE -------*/
  else if (mzte_codec.m_iQuantType == MULTIPLE_Q)
// hjlee 0901
    textureLayerMQ_Dec(bitfile, target_spatial_levels, target_snr_levels,
		       wvtfilter);
	
	/*------- AC: BILEVEL-QUANT MODE -------*/
  else if (mzte_codec.m_iQuantType == BILEVEL_Q) {
    PEZW_target_spatial_levels=target_spatial_levels;
    PEZW_target_snr_levels=target_snr_levels;
    PEZW_target_bitrate=0;
	textureLayerBQ_Dec(bitfile);
  }

// begin: deleted by sharp (99/3/29)
// This section is moved to encode()
#if 0
  for(col=0; col< mzte_codec.m_iColors; col++)
    free(Image[col].mask);
  free(Image);
#endif
// end: deleted by sharp (99/3/29)
#endif
  if (mzte_codec.m_iSingleBitFile==0){
    if(!mzte_codec.m_bStartCodeEnable)
      align_byte();
    fclose(bitfile);
  }

	} else {

//	if ( iTile == 0 ) // FPDAM : added by SAIT (99/09/03)
	if ( count == 0 )
	{ // added by Sharp (99/2/16)
		for (col=0; col<mzte_codec.m_iColors; col++) {

			h = mzte_codec.m_iHeight >> (Int)(col>0);
			w = mzte_codec.m_iWidth  >> (Int)(col>0);

			mzte_codec.m_SPlayer[col].coeffinfo = new COEFFINFO * [h];
			if (mzte_codec.m_SPlayer[col].coeffinfo == NULL)
				exit(fprintf(stderr,"Allocating memory for coefficient structure (I)."));
			mzte_codec.m_SPlayer[col].coeffinfo[0] = new COEFFINFO [h*w];
			if (mzte_codec.m_SPlayer[col].coeffinfo[0] == NULL)
				exit(fprintf(stderr,"Allocating memory for coefficient structure (II)."));
			for (/*int*/ y = 1; y < h; ++y)
				mzte_codec.m_SPlayer[col].coeffinfo[y] = 
				mzte_codec.m_SPlayer[col].coeffinfo[y-1]+w;
			
			for (y=0; y<h; y++)
				for (/*int*/ x=0; x<w; x++) {
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].skip =0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].wvt_coeff = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].rec_coeff = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].quantized_value = 0;
					// mzte_codec.m_SPlayer[col].coeffinfo[y][x].qState = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].type = 0;
					mzte_codec.m_SPlayer[col].coeffinfo[y][x].mask = 0;

				}
		}
		noteDetail("Completed creating and initializing data structures.");
	} // added by Sharp (99/2/16)

		if (mzte_codec.m_iSingleBitFile==0){
			if(!mzte_codec.m_bStartCodeEnable)