/// <summary> Initializes the source of entropy coded data.
///
/// </summary>
/// <param name="src">The source of entropy coded data.
///
/// </param>
/// <param name="ln">The number of layers to create
///
/// </param>
/// <param name="pt">The progressive type, as defined in 'ProgressionType'.
///
/// </param>
/// <param name="bw">The packet bit stream writer.
///
/// </param>
/// <seealso cref="ProgressionType">
///
/// </seealso>
public PostCompRateAllocator(CodedCBlkDataSrcEnc src, int nl, CodestreamWriter bw, EncoderSpecs encSpec) : base(src)
{
this.src = src;
this.encSpec = encSpec;
num_Layers = nl;
bsWriter = bw;
}
/// <summary> Creates a PostCompRateAllocator object for the appropriate rate
/// allocation parameters in the parameter list 'pl', having 'src' as the
/// source of entropy coded data, 'rate' as the target bitrate and 'bw' as
/// the bit stream writer object.
///
/// </summary>
/// <param name="src">The source of entropy coded data.
///
/// </param>
/// <param name="pl">The parameter lis (or options).
///
/// </param>
/// <param name="rate">The target bitrate for the rate allocation
///
/// </param>
/// <param name="bw">The bit stream writer object, where the bit stream data will
/// be written.
///
/// </param>
public static PostCompRateAllocator createInstance(CodedCBlkDataSrcEnc src, ParameterList pl, float rate, CodestreamWriter bw, EncoderSpecs encSpec)
{
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Construct the layer specification from the 'Alayers' option
LayersInfo lyrs = parseAlayers(pl.getParameter("Alayers"), rate);
int nTiles = encSpec.nTiles;
int nComp = encSpec.nComp;
int numLayers = lyrs.TotNumLayers;
// Parse the progressive type
encSpec.pocs = new ProgressionSpec(nTiles, nComp, numLayers, encSpec.dls, ModuleSpec.SPEC_TYPE_TILE_COMP, pl);
return(new EBCOTRateAllocator(src, lyrs, bw, encSpec, pl));
}
