/// <summary> Initializes the source of compressed data. And sets the number of range
/// bits and fraction bits and receives the parameters for the dequantizer.
///
/// </summary>
/// <param name="src">From where to obtain the quantized data.
///
/// </param>
/// <param name="rb">The number of "range bits" (bitdepth) for each component
/// (must be the "range bits" of the un-transformed components). For a
/// definition of "range bits" see the getNomRangeBits() method.
///
/// </param>
/// <param name="qts">The quantizer type spec
///
/// </param>
/// <param name="qsss">The dequantizer step sizes spec
///
/// </param>
/// <seealso cref="Dequantizer.getNomRangeBits">
///
/// </seealso>
/// <exception cref="IllegalArgumentException">Thrown if 'outdt' is neither
/// TYPE_FLOAT nor TYPE_INT, or if 'param' specify reversible quantization
/// and 'outdt' is not TYPE_INT or 'fp' has non-zero values, or if 'outdt'
/// is TYPE_FLOAT and 'fp' has non-zero values.
///
/// </exception>
public StdDequantizer(CBlkQuantDataSrcDec src, int[] utrb, DecoderSpecs decSpec) : base(src, utrb, decSpec)
{
if (utrb.Length != src.NumComps)
{
throw new System.ArgumentException("Invalid rb argument");
}
this.qsss = decSpec.qsss;
this.qts = decSpec.qts;
this.gbs = decSpec.gbs;
}
/// <summary> Initializes the source of compressed data.
///
/// </summary>
/// <param name="src">From where to obtain the quantized data.
///
/// </param>
/// <param name="rb">The number of "range bits" for each component (must be the
/// "range bits" of the un-transformed components. For a definition of
/// "range bits" see the getNomRangeBits() method.
///
/// </param>
/// <seealso cref="getNomRangeBits">
///
/// </seealso>
public Dequantizer(CBlkQuantDataSrcDec src, int[] utrb, DecoderSpecs decSpec) : base(src)
{
if (utrb.Length != src.NumComps)
{
throw new System.ArgumentException();
}
this.src = src;
this.utrb = utrb;
this.cts = decSpec.cts;
this.wfs = decSpec.wfs;
}
/// <summary> Creates a ROIDeScaler object. The information needed to create the
/// object is the Entropy decoder used and the parameters.
///
/// </summary>
/// <param name="src">The source of data that is to be descaled
///
/// </param>
/// <param name="pl">The parameter list (or options).
///
/// </param>
/// <param name="decSpec">The decoding specifications
///
/// </param>
/// <exception cref="IllegalArgumentException">If an error occurs while parsing
/// the options in 'pl'
///
/// </exception>
public static ROIDeScaler createInstance(CBlkQuantDataSrcDec src, ParameterList pl, DecoderSpecs decSpec)
{
System.String noRoi;
//int i;
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Check if no_roi specified in command line or no roi signalled
// in bit stream
noRoi = pl.getParameter("Rno_roi");
if (noRoi != null || decSpec.rois == null)
{
// no_roi specified in commandline!
return(new ROIDeScaler(src, null));
}
return(new ROIDeScaler(src, decSpec.rois));
}
/// <summary> Initializes the source of compressed data.
///
/// </summary>
/// <param name="src">From where to obtain the quantized data.
///
/// </param>
/// <param name="rb">The number of "range bits" for each component (must be the
/// "range bits" of the un-transformed components. For a definition of
/// "range bits" see the getNomRangeBits() method.
///
/// </param>
/// <seealso cref="getNomRangeBits">
///
/// </seealso>
public Dequantizer(CBlkQuantDataSrcDec src, int[] utrb, DecoderSpecs decSpec):base(src)
{
if (utrb.Length != src.NumComps)
{
throw new System.ArgumentException();
}
this.src = src;
this.utrb = utrb;
this.cts = decSpec.cts;
this.wfs = decSpec.wfs;
}
/// <summary> Creates a ROIDeScaler object. The information needed to create the
/// object is the Entropy decoder used and the parameters.
///
/// </summary>
/// <param name="src">The source of data that is to be descaled
///
/// </param>
/// <param name="pl">The parameter list (or options).
///
/// </param>
/// <param name="decSpec">The decoding specifications
///
/// </param>
/// <exception cref="IllegalArgumentException">If an error occurs while parsing
/// the options in 'pl'
///
/// </exception>
public static ROIDeScaler createInstance(CBlkQuantDataSrcDec src, ParameterList pl, DecoderSpecs decSpec)
{
System.String noRoi;
//int i;
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Check if no_roi specified in command line or no roi signalled
// in bit stream
noRoi = pl.getParameter("Rno_roi");
if (noRoi != null || decSpec.rois == null)
{
// no_roi specified in commandline!
return new ROIDeScaler(src, null);
}
return new ROIDeScaler(src, decSpec.rois);
}
/// <summary> Constructor of the ROI descaler, takes EntropyDEcoder as source of data
/// to de-scale.
///
/// </summary>
/// <param name="src">The EntropyDecoder that is the source of data.
///
/// </param>
/// <param name="mss">The MaxShiftSpec containing the scaling values for all
/// tile-components
///
/// </param>
public ROIDeScaler(CBlkQuantDataSrcDec src, MaxShiftSpec mss):base(src)
{
this.src = src;
this.mss = mss;
}
/// <summary> Constructor of the ROI descaler, takes EntropyDEcoder as source of data
/// to de-scale.
///
/// </summary>
/// <param name="src">The EntropyDecoder that is the source of data.
///
/// </param>
/// <param name="mss">The MaxShiftSpec containing the scaling values for all
/// tile-components
///
/// </param>
public ROIDeScaler(CBlkQuantDataSrcDec src, MaxShiftSpec mss) : base(src)
{
this.src = src;
this.mss = mss;
}
/// <summary> Returns the dequantizer parameters. Dequantizer parameters normally are
/// the quantization step sizes, see DequantizerParams.
///
/// </summary>
/// <param name="src">The source of data for the dequantizer.
///
/// </param>
/// <param name="rb">The number of range bits for each component. Must be
/// the number of range bits of the mixed components.
///
/// </param>
/// <param name="decSpec2">The DecoderSpecs instance after any image manipulation.
///
/// </param>
/// <returns> The dequantizer
///
/// </returns>
public Dequantizer createDequantizer(CBlkQuantDataSrcDec src, int[] rb, DecoderSpecs decSpec2)
{
return new StdDequantizer(src, rb, decSpec2);
}
/// <summary> Creates and returns the ROIDeScaler corresponding to the information
/// read from the codestream header and with the special additional
/// parameters from the parameter list.
///
/// </summary>
/// <param name="src">The bit stream reader agent where to get code-block data
/// from.
///
/// </param>
/// <param name="pl">The parameter list containing parameters applicable to the
/// entropy decoder (other parameters can also be present).
///
/// </param>
/// <param name="decSpec2">The DecoderSpecs instance after any image manipulation.
///
/// </param>
/// <returns> The ROI descaler.
///
/// </returns>
public virtual ROIDeScaler createROIDeScaler(CBlkQuantDataSrcDec src, ParameterList pl, DecoderSpecs decSpec2)
{
return ROIDeScaler.createInstance(src, pl, decSpec2);
}
/// <summary> Initializes the source of compressed data. And sets the number of range
/// bits and fraction bits and receives the parameters for the dequantizer.
///
/// </summary>
/// <param name="src">From where to obtain the quantized data.
///
/// </param>
/// <param name="rb">The number of "range bits" (bitdepth) for each component
/// (must be the "range bits" of the un-transformed components). For a
/// definition of "range bits" see the getNomRangeBits() method.
///
/// </param>
/// <param name="qts">The quantizer type spec
///
/// </param>
/// <param name="qsss">The dequantizer step sizes spec
///
/// </param>
/// <seealso cref="Dequantizer.getNomRangeBits">
///
/// </seealso>
/// <exception cref="IllegalArgumentException">Thrown if 'outdt' is neither
/// TYPE_FLOAT nor TYPE_INT, or if 'param' specify reversible quantization
/// and 'outdt' is not TYPE_INT or 'fp' has non-zero values, or if 'outdt'
/// is TYPE_FLOAT and 'fp' has non-zero values.
///
/// </exception>
public StdDequantizer(CBlkQuantDataSrcDec src, int[] utrb, DecoderSpecs decSpec):base(src, utrb, decSpec)
{
if (utrb.Length != src.NumComps)
{
throw new System.ArgumentException("Invalid rb argument");
}
this.qsss = decSpec.qsss;
this.qts = decSpec.qts;
this.gbs = decSpec.gbs;
}
