/// <summary> Reads all tiles headers and keep offset of their first
/// packet. Finally it calls the rate allocation method.
///
/// </summary>
/// <param name="hd">HeaderDecoder of the codestream.
///
/// </param>
/// <param name="ehs">The input stream where to read bit-stream.
///
/// </param>
/// <param name="decSpec">The decoder specifications
///
/// </param>
/// <param name="pl">The ParameterList instance created from the
/// command-line arguments.
///
/// </param>
/// <param name="cdstrInfo">Whether or not to print information found in
/// codestream.
///
/// </param>
/// <seealso cref="allocateRate">
///
/// </seealso>
public FileBitstreamReaderAgent(HeaderDecoder hd, RandomAccessIO ehs, DecoderSpecs decSpec, ParameterList pl, bool cdstrInfo, HeaderInfo hi):base(hd, decSpec)
{
this.pl = pl;
this.printInfo = cdstrInfo;
this.hi = hi;
// Check whether quit conditiosn used
usePOCQuit = pl.getBooleanParameter("poc_quit");
// Get decoding rate
bool rateInBytes;
bool parsing = pl.getBooleanParameter("parsing");
try
{
trate = pl.getFloatParameter("rate");
if (trate == - 1)
{
trate = System.Single.MaxValue;
}
}
catch (System.FormatException)
{
throw new System.ApplicationException("Invalid value in 'rate' option: " + pl.getParameter("rate"));
}
catch (System.ArgumentException)
{
throw new System.ApplicationException("'rate' option is missing");
}
try
{
tnbytes = pl.getIntParameter("nbytes");
}
catch (System.FormatException)
{
throw new System.ApplicationException("Invalid value in 'nbytes' option: " + pl.getParameter("nbytes"));
}
catch (System.ArgumentException)
{
throw new System.ApplicationException("'nbytes' option is missing");
}
// Check that '-rate' and '-nbytes' are not used at the same time
ParameterList defaults = pl.DefaultParameterList;
if (tnbytes != defaults.getFloatParameter("nbytes"))
{
rateInBytes = true;
}
else
{
rateInBytes = false;
}
if (rateInBytes)
{
trate = tnbytes * 8f / hd.MaxCompImgWidth / hd.MaxCompImgHeight;
}
else
{
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
tnbytes = (int) (trate * hd.MaxCompImgWidth * hd.MaxCompImgHeight) / 8;
if (tnbytes < 0) tnbytes = int.MaxValue;
}
isTruncMode = !pl.getBooleanParameter("parsing");
// Check if quit conditions are being used
int ncbQuit;
try
{
ncbQuit = pl.getIntParameter("ncb_quit");
}
catch (System.FormatException)
{
throw new System.ApplicationException("Invalid value in 'ncb_quit' option: " + pl.getParameter("ncb_quit"));
}
catch (System.ArgumentException)
{
throw new System.ApplicationException("'ncb_quit' option is missing");
}
if (ncbQuit != - 1 && !isTruncMode)
{
throw new System.ApplicationException("Cannot use -parsing and -ncb_quit condition at " + "the same time.");
}
try
{
lQuit = pl.getIntParameter("l_quit");
}
catch (System.FormatException)
{
throw new System.ApplicationException("Invalid value in 'l_quit' option: " + pl.getParameter("l_quit"));
}
catch (System.ArgumentException)
{
throw new System.ApplicationException("'l_quit' option is missing");
}
// initializations
in_Renamed = ehs;
pktDec = new PktDecoder(decSpec, hd, ehs, this, isTruncMode, ncbQuit);
tileParts = new int[nt];
totTileLen = new int[nt];
tilePartLen = new int[nt][];
tilePartNum = new int[nt][];
firstPackOff = new int[nt][];
tilePartsRead = new int[nt];
totTileHeadLen = new int[nt];
tilePartHeadLen = new int[nt][];
nBytes = new int[nt];
baknBytes = new int[nt];
hd.nTileParts = new int[nt];
// CONVERSION PROBLEM?
//this.isTruncMode = isTruncMode;
int t = 0, pos, tp = 0, tptot = 0;
// Keeps main header's length, takes file format overhead into account
int cdstreamStart = hd.mainHeadOff; // Codestream offset in the file
mainHeadLen = in_Renamed.Pos - cdstreamStart;
headLen = mainHeadLen;
// If ncb and lbody quit conditions are used, headers are not counted
if (ncbQuit == - 1)
{
anbytes = mainHeadLen;
}
else
{
anbytes = 0;
}
// If cannot even read the first tile-part
if (anbytes > tnbytes)
{
throw new System.ApplicationException("Requested bitrate is too small.");
}
// Read all tile-part headers from all tiles.
int tilePartStart;
bool rateReached = false;
int mdl;
//int numtp = 0;
totAllTileLen = 0;
remainingTileParts = nt; // at least as many tile-parts as tiles
int maxTP = nt; // If maximum 1 tile part per tile specified
try
{
while (remainingTileParts != 0)
{
tilePartStart = in_Renamed.Pos;
// Read tile-part header
try
{
t = readTilePartHeader();
if (isEOCFound)
{
// Some tiles are missing but the
// codestream is OK
break;
}
tp = tilePartsRead[t];
if (isPsotEqualsZero)
{
// Psot may equals zero for the
// last tile-part: it is assumed that this tile-part
// contain all data until EOC
tilePartLen[t][tp] = in_Renamed.length() - 2 - tilePartStart;
}
}
catch (System.IO.EndOfStreamException e)
{
firstPackOff[t][tp] = in_Renamed.length();
throw e;
}
pos = in_Renamed.Pos;
// In truncation mode, if target decoding rate is reached in
// tile-part header, skips the tile-part and stop reading
// unless the ncb and lbody quit condition is in use
if (isTruncMode && ncbQuit == - 1)
{
if ((pos - cdstreamStart) > tnbytes)
{
firstPackOff[t][tp] = in_Renamed.length();
rateReached = true;
break;
}
}
// Set tile part position and header length
firstPackOff[t][tp] = pos;
tilePartHeadLen[t][tp] = (pos - tilePartStart);
// Update length counters
totTileLen[t] += tilePartLen[t][tp];
totTileHeadLen[t] += tilePartHeadLen[t][tp];
totAllTileLen += tilePartLen[t][tp];
if (isTruncMode)
{
if (anbytes + tilePartLen[t][tp] > tnbytes)
{
anbytes += tilePartHeadLen[t][tp];
headLen += tilePartHeadLen[t][tp];
rateReached = true;
nBytes[t] += (tnbytes - anbytes);
break;
}
else
{
anbytes += tilePartHeadLen[t][tp];
headLen += tilePartHeadLen[t][tp];
nBytes[t] += (tilePartLen[t][tp] - tilePartHeadLen[t][tp]);
}
}
else
{
if (anbytes + tilePartHeadLen[t][tp] > tnbytes)
{
break;
}
else
{
anbytes += tilePartHeadLen[t][tp];
headLen += tilePartHeadLen[t][tp];
}
}
// If this is first tile-part, remember header length
if (tptot == 0)
firstTilePartHeadLen = tilePartHeadLen[t][tp];
// Go to the beginning of next tile part
tilePartsRead[t]++;
in_Renamed.seek(tilePartStart + tilePartLen[t][tp]);
remainingTileParts--;
maxTP--;
tptot++;
// If Psot of the current tile-part was equal to zero, it is
// assumed that it contains all data until the EOC marker
if (isPsotEqualsZero)
{
if (remainingTileParts != 0)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Some tile-parts have not " + "been found. The codestream may be corrupted.");
}
break;
}
}
}
catch (System.IO.EndOfStreamException)
{
if (printInfo)
{
}
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Codestream truncated in tile " + t);
// Set specified rate to end of file if valid
int fileLen = in_Renamed.length();
if (fileLen < tnbytes)
{
tnbytes = fileLen;
trate = tnbytes * 8f / hd.MaxCompImgWidth / hd.MaxCompImgHeight;
}
// Bit-rate allocation
if (!isTruncMode)
{
allocateRate();
}
// Update 'res' value once all tile-part headers are read
if (pl.getParameter("res") == null)
{
targetRes = decSpec.dls.Min;
}
else
{
try
{
targetRes = pl.getIntParameter("res");
if (targetRes < 0)
{
throw new System.ArgumentException("Specified negative " + "resolution level " + "index: " + targetRes);
}
}
catch (System.FormatException)
{
throw new System.ArgumentException("Invalid resolution level " + "index ('-res' option) " + pl.getParameter("res"));
}
}
// Verify reduction in resolution level
mdl = decSpec.dls.Min;
if (targetRes > mdl)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Specified resolution level (" + targetRes + ") is larger" + " than the maximum value. Setting it to " + mdl + " (maximum value)");
targetRes = mdl;
}
// Backup nBytes
for (int tIdx = 0; tIdx < nt; tIdx++)
{
baknBytes[tIdx] = nBytes[tIdx];
}
return ;
}
remainingTileParts = 0;
// Update 'res' value once all tile-part headers are read
if (pl.getParameter("res") == null)
{
targetRes = decSpec.dls.Min;
}
else
{
try
{
targetRes = pl.getIntParameter("res");
if (targetRes < 0)
{
throw new System.ArgumentException("Specified negative " + "resolution level index: " + targetRes);
}
}
catch (System.FormatException)
{
throw new System.ArgumentException("Invalid resolution level " + "index ('-res' option) " + pl.getParameter("res"));
}
}
// Verify reduction in resolution level
mdl = decSpec.dls.Min;
if (targetRes > mdl)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Specified resolution level (" + targetRes + ") is larger" + " than the maximum possible. Setting it to " + mdl + " (maximum possible)");
targetRes = mdl;
}
if (printInfo)
{
}
// Check presence of EOC marker is decoding rate not reached or if
// this marker has not been found yet
if (!isEOCFound && !isPsotEqualsZero)
{
try
{
short eocCheck = 0;
if (in_Renamed.Pos + sizeof(short) <= in_Renamed.length())
eocCheck = in_Renamed.readShort();
if (!rateReached && !isPsotEqualsZero && eocCheck != CSJ2K.j2k.codestream.Markers.EOC)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "EOC marker not found. " + "Codestream is corrupted.");
}
}
catch (System.IO.EndOfStreamException)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "EOC marker is missing");
}
}
// Bit-rate allocation
if (!isTruncMode)
{
allocateRate();
}
else
{
// Take EOC into account if rate is not reached
if (in_Renamed.Pos >= tnbytes)
anbytes += 2;
}
// Backup nBytes
for (int tIdx = 0; tIdx < nt; tIdx++)
{
baknBytes[tIdx] = nBytes[tIdx];
if (printInfo)
{
FacilityManager.getMsgLogger().println("" + hi.toStringTileHeader(tIdx, tilePartLen[tIdx].Length), 2, 2);
}
}
}
public static Image FromStream(Stream stream)
{
RandomAccessIO in_stream = new ISRandomAccessIO(stream);
// Initialize default parameters
ParameterList defpl = GetDefaultParameterList(decoder_pinfo);
// Create parameter list using defaults
ParameterList pl = new ParameterList(defpl);
// **** File Format ****
// If the codestream is wrapped in the jp2 fileformat, Read the
// file format wrapper
FileFormatReader ff = new FileFormatReader(in_stream);
ff.readFileFormat();
if (ff.JP2FFUsed)
{
in_stream.seek(ff.FirstCodeStreamPos);
}
// +----------------------------+
// | Instantiate decoding chain |
// +----------------------------+
// **** Header decoder ****
// Instantiate header decoder and read main header
HeaderInfo hi = new HeaderInfo();
HeaderDecoder hd;
try
{
hd = new HeaderDecoder(in_stream, pl, hi);
}
catch (EndOfStreamException e)
{
throw new ApplicationException("Codestream too short or bad header, unable to decode.", e);
}
int nCompCod = hd.NumComps;
int nTiles = hi.sizValue.NumTiles;
DecoderSpecs decSpec = hd.DecoderSpecs;
// Get demixed bitdepths
int[] depth = new int[nCompCod];
for (int i = 0; i < nCompCod; i++)
{
depth[i] = hd.getOriginalBitDepth(i);
}
// **** Bit stream reader ****
BitstreamReaderAgent breader;
try
{
breader = BitstreamReaderAgent.
createInstance(in_stream, hd, pl, decSpec,
false, hi);
}
catch (IOException e)
{
throw new ApplicationException("Error while reading bit stream header or parsing packets.", e);
}
catch (ArgumentException e)
{
throw new ApplicationException("Cannot instantiate bit stream reader.", e);
}
// **** Entropy decoder ****
EntropyDecoder entdec;
try
{
entdec = hd.createEntropyDecoder(breader, pl);
}
catch (ArgumentException e)
{
throw new ApplicationException("Cannot instantiate entropy decoder.", e);
}
// **** ROI de-scaler ****
ROIDeScaler roids;
try
{
roids = hd.createROIDeScaler(entdec, pl, decSpec);
}
catch (ArgumentException e)
{
throw new ApplicationException("Cannot instantiate roi de-scaler.", e);
}
// **** Dequantizer ****
Dequantizer deq;
try
{
deq = hd.createDequantizer(roids, depth, decSpec);
}
catch (ArgumentException e)
{
throw new ApplicationException("Cannot instantiate dequantizer.", e);
}
// **** Inverse wavelet transform ***
InverseWT invWT;
try
{
// full page inverse wavelet transform
invWT = InverseWT.createInstance(deq, decSpec);
}
catch (ArgumentException e)
{
throw new ApplicationException("Cannot instantiate inverse wavelet transform.", e);
}
int res = breader.ImgRes;
invWT.ImgResLevel = res;
// **** Data converter **** (after inverse transform module)
ImgDataConverter converter = new ImgDataConverter(invWT, 0);
// **** Inverse component transformation ****
InvCompTransf ictransf = new InvCompTransf(converter, decSpec, depth, pl);
// **** Color space mapping ****
BlkImgDataSrc color;
if (ff.JP2FFUsed && pl.getParameter("nocolorspace").Equals("off"))
{
try
{
ColorSpace csMap = new ColorSpace(in_stream, hd, pl);
BlkImgDataSrc channels = hd.createChannelDefinitionMapper(ictransf, csMap);
BlkImgDataSrc resampled = hd.createResampler(channels, csMap);
BlkImgDataSrc palettized = hd.createPalettizedColorSpaceMapper(resampled, csMap);
color = hd.createColorSpaceMapper(palettized, csMap);
}
catch (ArgumentException e)
{
throw new ApplicationException("Could not instantiate ICC profiler.", e);
}
catch (ColorSpaceException e)
{
throw new ApplicationException("Error processing ColorSpace information.", e);
}
}
else
{ // Skip colorspace mapping
color = ictransf;
}
// This is the last image in the decoding chain and should be
// assigned by the last transformation:
BlkImgDataSrc decodedImage = color;
if (color == null)
{
decodedImage = ictransf;
}
int numComps = decodedImage.NumComps;
int bytesPerPixel = (numComps == 4 ? 4 : 3);
// **** Copy to Bitmap ****
PixelFormat pixelFormat;
switch (numComps)
{
case 1:
pixelFormat = PixelFormat.Format24bppRgb; break;
case 3:
pixelFormat = PixelFormat.Format24bppRgb; break;
case 4:
pixelFormat = PixelFormat.Format32bppArgb; break;
default:
throw new ApplicationException("Unsupported PixelFormat. " + numComps + " components.");
}
Bitmap dst = new Bitmap(decodedImage.ImgWidth, decodedImage.ImgHeight, pixelFormat);
Coord numTiles = decodedImage.getNumTiles(null);
int tIdx = 0;
for (int y = 0; y < numTiles.y; y++)
{
// Loop on horizontal tiles
for (int x = 0; x < numTiles.x; x++, tIdx++)
{
decodedImage.setTile(x, y);
int height = decodedImage.getTileCompHeight(tIdx, 0);
int width = decodedImage.getTileCompWidth(tIdx, 0);
int tOffx = decodedImage.getCompULX(0) -
(int)Math.Ceiling(decodedImage.ImgULX /
(double)decodedImage.getCompSubsX(0));
int tOffy = decodedImage.getCompULY(0) -
(int)Math.Ceiling(decodedImage.ImgULY /
(double)decodedImage.getCompSubsY(0));
DataBlkInt[] db = new DataBlkInt[numComps];
int[] ls = new int[numComps];
int[] mv = new int[numComps];
int[] fb = new int[numComps];
for (int i = 0; i < numComps; i++)
{
db[i] = new DataBlkInt();
ls[i] = 1 << (decodedImage.getNomRangeBits(0) - 1);
mv[i] = (1 << decodedImage.getNomRangeBits(0)) - 1;
fb[i] = decodedImage.getFixedPoint(0);
}
for (int l = 0; l < height; l++)
{
for (int i = numComps - 1; i >= 0; i--)
{
db[i].ulx = 0;
db[i].uly = l;
db[i].w = width;
db[i].h = 1;
decodedImage.getInternCompData(db[i], i);
}
int[] k = new int[numComps];
for (int i = numComps - 1; i >= 0; i--) k[i] = db[i].offset + width - 1;
byte[] rowvalues = new byte[width * bytesPerPixel];
for (int i = width - 1; i >= 0; i--)
{
int[] tmp = new int[numComps];
for (int j = numComps - 1; j >= 0; j--)
{
tmp[j] = (db[j].data_array[k[j]--] >> fb[j]) + ls[j];
tmp[j] = (tmp[j] < 0) ? 0 : ((tmp[j] > mv[j]) ? mv[j] : tmp[j]);
if (decodedImage.getNomRangeBits(j) != 8)
tmp[j] = (int)Math.Round(((double)tmp[j] / Math.Pow(2D, (double)decodedImage.getNomRangeBits(j))) * 255D);
}
int offset = i * bytesPerPixel;
switch (numComps)
{
case 1:
rowvalues[offset + 0] = (byte)tmp[0];
rowvalues[offset + 1] = (byte)tmp[0];
rowvalues[offset + 2] = (byte)tmp[0];
break;
case 3:
rowvalues[offset + 0] = (byte)tmp[2];
rowvalues[offset + 1] = (byte)tmp[1];
rowvalues[offset + 2] = (byte)tmp[0];
break;
case 4:
rowvalues[offset + 0] = (byte)tmp[3];
rowvalues[offset + 1] = (byte)tmp[2];
rowvalues[offset + 2] = (byte)tmp[1];
rowvalues[offset + 3] = (byte)tmp[0];
break;
}
}
BitmapData dstdata = dst.LockBits(
new System.Drawing.Rectangle(tOffx, tOffy + l, width, 1),
ImageLockMode.ReadWrite, pixelFormat);
IntPtr ptr = dstdata.Scan0;
System.Runtime.InteropServices.Marshal.Copy(rowvalues, 0, ptr, rowvalues.Length);
dst.UnlockBits(dstdata);
}
}
}
return dst;
}
public static List<int> GetLayerBoundaries(Stream stream)
{
RandomAccessIO in_stream = new ISRandomAccessIO(stream);
// Create parameter list using defaults
ParameterList pl = new ParameterList(GetDefaultParameterList(decoder_pinfo));
// **** File Format ****
// If the codestream is wrapped in the jp2 fileformat, Read the
// file format wrapper
FileFormatReader ff = new FileFormatReader(in_stream);
ff.readFileFormat();
if (ff.JP2FFUsed)
{
in_stream.seek(ff.FirstCodeStreamPos);
}
// +----------------------------+
// | Instantiate decoding chain |
// +----------------------------+
// **** Header decoder ****
// Instantiate header decoder and read main header
HeaderInfo hi = new HeaderInfo();
HeaderDecoder hd;
try
{
hd = new HeaderDecoder(in_stream, pl, hi);
}
catch (EndOfStreamException e)
{
throw new ArgumentException("Codestream too short or bad header, unable to decode.", e);
}
int nCompCod = hd.NumComps;
int nTiles = hi.sizValue.NumTiles;
DecoderSpecs decSpec = hd.DecoderSpecs;
// Get demixed bitdepths
int[] depth = new int[nCompCod];
for (int i = 0; i < nCompCod; i++)
{
depth[i] = hd.getOriginalBitDepth(i);
}
// **** Bit stream reader ****
BitstreamReaderAgent breader;
try
{
breader = BitstreamReaderAgent.createInstance(in_stream, hd, pl, decSpec, false, hi);
}
catch (IOException e)
{
throw new ArgumentException("Error while reading bit stream header or parsing packets.", e);
}
catch (ArgumentException e)
{
throw new ArgumentException("Cannot instantiate bit stream reader.", e);
}
breader.setTile(0, 0);
return ((FileBitstreamReaderAgent)breader).layerStarts;
}
/// <summary> Creates an empty PktDecoder object associated with given decoder
/// specifications and HeaderDecoder. This object must be initialized
/// thanks to the restart method before being used.
///
/// </summary>
/// <param name="decSpec">The decoder specifications.
///
/// </param>
/// <param name="hd">The HeaderDecoder instance.
///
/// </param>
/// <param name="ehs">The stream where to read data from.
///
/// </param>
/// <param name="src">The bit stream reader agent.
///
/// </param>
/// <param name="isTruncMode">Whether or not truncation mode is required.
///
/// </param>
/// <param name="maxCB">The maximum number of code-blocks to read before ncbquit
///
///
/// </param>
public PktDecoder(DecoderSpecs decSpec, HeaderDecoder hd, RandomAccessIO ehs, BitstreamReaderAgent src, bool isTruncMode, int maxCB)
{
this.decSpec = decSpec;
this.hd = hd;
this.ehs = ehs;
this.isTruncMode = isTruncMode;
bin = new PktHeaderBitReader(ehs);
this.src = src;
ncb = 0;
ncbQuit = false;
this.maxCB = maxCB;
}
/// <summary> Initializes members of this class. This constructor takes a
/// HeaderDecoder object. This object must be initialized by the
/// constructor of the implementing class from the header of the bit
/// stream.
///
/// </summary>
/// <param name="hd">The decoded header of the bit stream from where to initialize
/// the values.
///
/// </param>
/// <param name="decSpec">The decoder specifications
///
/// </param>
protected internal BitstreamReaderAgent(HeaderDecoder hd, DecoderSpecs decSpec)
{
Coord co;
//int i, j, max;
this.decSpec = decSpec;
this.hd = hd;
// Number of components
nc = hd.NumComps;
offX = new int[nc];
offY = new int[nc];
culx = new int[nc];
culy = new int[nc];
// Image size and origin
imgW = hd.ImgWidth;
imgH = hd.ImgHeight;
ax = hd.ImgULX;
ay = hd.ImgULY;
// Tiles
co = hd.getTilingOrigin(null);
px = co.x;
py = co.y;
ntW = hd.NomTileWidth;
ntH = hd.NomTileHeight;
ntX = (ax + imgW - px + ntW - 1) / ntW;
ntY = (ay + imgH - py + ntH - 1) / ntH;
nt = ntX * ntY;
}
/// <summary> Creates a bit stream reader of the correct type that works on the
/// provided RandomAccessIO, with the special parameters from the parameter
/// list.
///
/// </summary>
/// <param name="in">The RandomAccessIO source from which to read the bit stream.
///
/// </param>
/// <param name="hd">Header of the codestream.
///
/// </param>
/// <param name="pl">The parameter list containing parameters applicable to the
/// bit stream read (other parameters may also be present).
///
/// </param>
/// <param name="decSpec">The decoder specifications
///
/// </param>
/// <param name="cdstrInfo">Whether or not to print information found in
/// codestream.
///
/// </param>
/// <param name="hi">Reference to the HeaderInfo instance.
///
/// </param>
/// <exception cref="IOException">If an I/O error occurs while reading initial
/// data from the bit stream.
/// </exception>
/// <exception cref="IllegalArgumentException">If an unrecognised bit stream
/// reader option is present.
///
/// </exception>
public static BitstreamReaderAgent createInstance(RandomAccessIO in_Renamed, HeaderDecoder hd, ParameterList pl, DecoderSpecs decSpec, bool cdstrInfo, HeaderInfo hi)
{
// Check parameters
pl.checkList(BitstreamReaderAgent.OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(BitstreamReaderAgent.ParameterInfo));
return new FileBitstreamReaderAgent(hd, in_Renamed, decSpec, pl, cdstrInfo, hi);
}