/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The size of the image that is written to the file is the size of the
/// component from which to get the data, specified by b, not the size of
/// the source image (they differ if there is some sub-sampling).</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="c">The index of the component from where to get the data.
///
/// </param>
public ImgWriterPGM(IFileInfo out_Renamed, BlkImgDataSrc imgSrc, int c)
{
// Check that imgSrc is of the correct type
// Check that the component index is valid
if (c < 0 || c >= imgSrc.NumComps)
{
throw new System.ArgumentException("Invalid number of components");
}
// Check that imgSrc is of the correct type
if (imgSrc.getNomRangeBits(c) > 8)
{
FacilityManager.getMsgLogger().println("Warning: Component " + c + " has nominal bitdepth " + imgSrc.getNomRangeBits(c) + ". Pixel values will be " + "down-shifted to fit bitdepth of 8 for PGM file", 8, 8);
}
// Initialize
if (out_Renamed.Exists && !out_Renamed.Delete())
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
src = imgSrc;
this.c = c;
w = imgSrc.ImgWidth;
h = imgSrc.ImgHeight;
fb = imgSrc.getFixedPoint(c);
levShift = 1 << (imgSrc.getNomRangeBits(c) - 1);
writeHeaderInfo();
}
/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The size of the image that is written to the file is the size of the
/// component from which to get the data, specified by b, not the size of
/// the source image (they differ if there is some sub-sampling).</p>
///
/// <p>All the header informations are given by the BlkImgDataSrc source
/// (component width, component height, bit-depth) and sign flag, which are
/// provided to the constructor. The endianness is always big-endian (MSB
/// first).</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="c">The index of the component from where to get the data.
///
/// </param>
/// <param name="isSigned">Whether the datas are signed or not (needed only when
/// writing header).
///
/// </param>
/// <seealso cref="DataBlk">
///
/// </seealso>
public ImgWriterPGX(IFileInfo out_Renamed, BlkImgDataSrc imgSrc, int c, bool isSigned)
{
//Initialize
this.c = c;
if (out_Renamed.Exists && !out_Renamed.Delete())
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
this.isSigned = isSigned;
src = imgSrc;
w = src.ImgWidth;
h = src.ImgHeight;
fb = imgSrc.getFixedPoint(c);
bitDepth = src.getNomRangeBits(this.c);
if ((bitDepth <= 0) || (bitDepth > 31))
{
throw new System.IO.IOException("PGX supports only bit-depth between " + "1 and 31");
}
if (bitDepth <= 8)
{
packBytes = 1;
}
else if (bitDepth <= 16)
{
packBytes = 2;
}
else
{
// <= 31
packBytes = 4;
}
// Writes PGX header
System.String tmpString = "PG " + "ML " + ((this.isSigned)?"- ":"+ ") + bitDepth + " " + w + " " + h + "\n"; // component height
byte[] tmpByte = System.Text.Encoding.UTF8.GetBytes(tmpString);
for (int i = 0; i < tmpByte.Length; i++)
{
this.out_Renamed.WriteByte((byte)tmpByte[i]);
}
offset = tmpByte.Length;
maxVal = this.isSigned?((1 << (src.getNomRangeBits(c) - 1)) - 1):((1 << src.getNomRangeBits(c)) - 1);
minVal = this.isSigned?((-1) * (1 << (src.getNomRangeBits(c) - 1))):0;
levShift = (this.isSigned)?0:1 << (src.getNomRangeBits(c) - 1);
}
/// <summary>General utility used by ctors </summary>
private void initialize()
{
this.pl = csMap.pl;
this.ncomps = src.NumComps;
shiftValueArray = new int[ncomps];
maxValueArray = new int[ncomps];
fixedPtBitsArray = new int[ncomps];
srcBlk = new DataBlk[ncomps];
inInt = new DataBlkInt[ncomps];
inFloat = new DataBlkFloat[ncomps];
workInt = new DataBlkInt[ncomps];
workFloat = new DataBlkFloat[ncomps];
dataInt = new int[ncomps][];
dataFloat = new float[ncomps][];
workDataInt = new int[ncomps][];
workDataFloat = new float[ncomps][];
dataInt = new int[ncomps][];
dataFloat = new float[ncomps][];
/* For each component, get a reference to the pixel data and
* set up working DataBlks for both integer and float output.
*/
for (int i = 0; i < ncomps; ++i)
{
shiftValueArray[i] = 1 << (src.getNomRangeBits(i) - 1);
maxValueArray[i] = (1 << src.getNomRangeBits(i)) - 1;
fixedPtBitsArray[i] = src.getFixedPoint(i);
inInt[i] = new DataBlkInt();
inFloat[i] = new DataBlkFloat();
workInt[i] = new DataBlkInt();
workInt[i].progressive = inInt[i].progressive;
workFloat[i] = new DataBlkFloat();
workFloat[i].progressive = inFloat[i].progressive;
}
}
/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The three components that will be written as R, G and B must be
/// specified through the b1, b2 and b3 arguments.</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="n1">The index of the first component from where to get the data,
/// that will be written as the red channel.
///
/// </param>
/// <param name="n2">The index of the second component from where to get the data,
/// that will be written as the green channel.
///
/// </param>
/// <param name="n3">The index of the third component from where to get the data,
/// that will be written as the green channel.
///
/// </param>
/// <seealso cref="DataBlk">
///
/// </seealso>
public ImgWriterPPM(IFileInfo out_Renamed, BlkImgDataSrc imgSrc, int n1, int n2, int n3)
{
// Check that imgSrc is of the correct type
// Check that the component index is valid
if ((n1 < 0) || (n1 >= imgSrc.NumComps) || (n2 < 0) || (n2 >= imgSrc.NumComps) || (n3 < 0) || (n3 >= imgSrc.NumComps) || (imgSrc.getNomRangeBits(n1) > 8) || (imgSrc.getNomRangeBits(n2) > 8) || (imgSrc.getNomRangeBits(n3) > 8))
{
throw new System.ArgumentException("Invalid component indexes");
}
// Initialize
w = imgSrc.getCompImgWidth(n1);
h = imgSrc.getCompImgHeight(n1);
// Check that all components have same width and height
if (w != imgSrc.getCompImgWidth(n2) || w != imgSrc.getCompImgWidth(n3) || h != imgSrc.getCompImgHeight(n2) || h != imgSrc.getCompImgHeight(n3))
{
throw new System.ArgumentException("All components must have the" + " same dimensions and no" + " subsampling");
}
w = imgSrc.ImgWidth;
h = imgSrc.ImgHeight;
// Continue initialization
if (out_Renamed.Exists && !out_Renamed.Delete())
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
src = imgSrc;
cps[0] = n1;
cps[1] = n2;
cps[2] = n3;
fb[0] = imgSrc.getFixedPoint(n1);
fb[1] = imgSrc.getFixedPoint(n2);
fb[2] = imgSrc.getFixedPoint(n3);
levShift[0] = 1 << (imgSrc.getNomRangeBits(n1) - 1);
levShift[1] = 1 << (imgSrc.getNomRangeBits(n2) - 1);
levShift[2] = 1 << (imgSrc.getNomRangeBits(n3) - 1);
writeHeaderInfo();
}
/// <summary> Initialize some variables used with RCT. It must be called, at least,
/// at the beginning of each new tile.
///
/// </summary>
private void initForwRCT()
{
int i;
int tIdx = TileIdx;
if (src.NumComps < 3)
{
throw new System.ArgumentException();
}
// Check that the 3 components have the same dimensions
if (src.getTileCompWidth(tIdx, 0) != src.getTileCompWidth(tIdx, 1) || src.getTileCompWidth(tIdx, 0) != src.getTileCompWidth(tIdx, 2) || src.getTileCompHeight(tIdx, 0) != src.getTileCompHeight(tIdx, 1) || src.getTileCompHeight(tIdx, 0) != src.getTileCompHeight(tIdx, 2))
{
throw new System.ArgumentException("Can not use RCT " + "on components with different " + "dimensions");
}
// Initialize bitdepths
int[] utd; // Premix bitdepths
utd = new int[src.NumComps];
for (i = utd.Length - 1; i >= 0; i--)
{
utd[i] = src.getNomRangeBits(i);
}
tdepth = calcMixedBitDepths(utd, FORW_RCT, null);
}
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; // Assuming 8-bit components
// **** Copy to Bitmap ****
PixelFormat pixelFormat;
switch (numComps)
{
case 1:
pixelFormat = PixelFormat.Format24bppRgb; break;
case 3:
pixelFormat = PixelFormat.Format24bppRgb; break;
case 4:
case 5:
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;
}
int outputBytesPerPixel = Math.Max(3, Math.Min(4, bytesPerPixel));
byte[] rowvalues = new byte[width * outputBytesPerPixel];
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 * outputBytesPerPixel;
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:
case 5:
rowvalues[offset + 0] = (byte)tmp[2];
rowvalues[offset + 1] = (byte)tmp[1];
rowvalues[offset + 2] = (byte)tmp[0];
rowvalues[offset + 3] = (byte)tmp[3];
break;
}
}
BitmapData dstdata = dst.LockBits(
new System.Drawing.Rectangle(tOffx, tOffy + l, width, 1),
ImageLockMode.WriteOnly, pixelFormat);
IntPtr ptr = dstdata.Scan0;
System.Runtime.InteropServices.Marshal.Copy(rowvalues, 0, ptr, rowvalues.Length);
dst.UnlockBits(dstdata);
}
}
}
return(dst);
}
/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The three components that will be written as R, G and B must be
/// specified through the b1, b2 and b3 arguments.</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="n1">The index of the first component from where to get the data,
/// that will be written as the red channel.
///
/// </param>
/// <param name="n2">The index of the second component from where to get the data,
/// that will be written as the green channel.
///
/// </param>
/// <param name="n3">The index of the third component from where to get the data,
/// that will be written as the green channel.
///
/// </param>
/// <seealso cref="DataBlk">
///
/// </seealso>
public ImgWriterPPM(IFileInfo out_Renamed, BlkImgDataSrc imgSrc, int n1, int n2, int n3)
{
// Check that imgSrc is of the correct type
// Check that the component index is valid
if ((n1 < 0) || (n1 >= imgSrc.NumComps) || (n2 < 0) || (n2 >= imgSrc.NumComps) || (n3 < 0) || (n3 >= imgSrc.NumComps) || (imgSrc.getNomRangeBits(n1) > 8) || (imgSrc.getNomRangeBits(n2) > 8) || (imgSrc.getNomRangeBits(n3) > 8))
{
throw new System.ArgumentException("Invalid component indexes");
}
// Initialize
w = imgSrc.getCompImgWidth(n1);
h = imgSrc.getCompImgHeight(n1);
// Check that all components have same width and height
if (w != imgSrc.getCompImgWidth(n2) || w != imgSrc.getCompImgWidth(n3) || h != imgSrc.getCompImgHeight(n2) || h != imgSrc.getCompImgHeight(n3))
{
throw new System.ArgumentException("All components must have the" + " same dimensions and no" + " subsampling");
}
w = imgSrc.ImgWidth;
h = imgSrc.ImgHeight;
// Continue initialization
if (out_Renamed.Exists && !out_Renamed.Delete())
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
src = imgSrc;
cps[0] = n1;
cps[1] = n2;
cps[2] = n3;
fb[0] = imgSrc.getFixedPoint(n1);
fb[1] = imgSrc.getFixedPoint(n2);
fb[2] = imgSrc.getFixedPoint(n3);
levShift[0] = 1 << (imgSrc.getNomRangeBits(n1) - 1);
levShift[1] = 1 << (imgSrc.getNomRangeBits(n2) - 1);
levShift[2] = 1 << (imgSrc.getNomRangeBits(n3) - 1);
writeHeaderInfo();
}
/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The size of the image that is written to the file is the size of the
/// component from which to get the data, specified by b, not the size of
/// the source image (they differ if there is some sub-sampling).</p>
///
/// <p>All the header informations are given by the BlkImgDataSrc source
/// (component width, component height, bit-depth) and sign flag, which are
/// provided to the constructor. The endianness is always big-endian (MSB
/// first).</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="c">The index of the component from where to get the data.
///
/// </param>
/// <param name="isSigned">Whether the datas are signed or not (needed only when
/// writing header).
///
/// </param>
/// <seealso cref="DataBlk">
///
/// </seealso>
public ImgWriterPGX(System.IO.FileInfo out_Renamed, BlkImgDataSrc imgSrc, int c, bool isSigned)
{
//Initialize
this.c = c;
bool tmpBool;
if (System.IO.File.Exists(out_Renamed.FullName))
tmpBool = true;
else
tmpBool = System.IO.Directory.Exists(out_Renamed.FullName);
bool tmpBool2;
if (System.IO.File.Exists(out_Renamed.FullName))
{
System.IO.File.Delete(out_Renamed.FullName);
tmpBool2 = true;
}
else if (System.IO.Directory.Exists(out_Renamed.FullName))
{
System.IO.Directory.Delete(out_Renamed.FullName);
tmpBool2 = true;
}
else
tmpBool2 = false;
if (tmpBool && !tmpBool2)
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
this.isSigned = isSigned;
src = imgSrc;
w = src.ImgWidth;
h = src.ImgHeight;
fb = imgSrc.getFixedPoint(c);
bitDepth = src.getNomRangeBits(this.c);
if ((bitDepth <= 0) || (bitDepth > 31))
{
throw new System.IO.IOException("PGX supports only bit-depth between " + "1 and 31");
}
if (bitDepth <= 8)
{
packBytes = 1;
}
else if (bitDepth <= 16)
{
packBytes = 2;
}
else
{
// <= 31
packBytes = 4;
}
// Writes PGX header
System.String tmpString = "PG " + "ML " + ((this.isSigned)?"- ":"+ ") + bitDepth + " " + w + " " + h + "\n"; // component height
byte[] tmpByte = System.Text.ASCIIEncoding.ASCII.GetBytes(tmpString);
for (int i = 0; i < tmpByte.Length; i++)
{
this.out_Renamed.WriteByte((byte) tmpByte[i]);
}
offset = tmpByte.Length;
maxVal = this.isSigned?((1 << (src.getNomRangeBits(c) - 1)) - 1):((1 << src.getNomRangeBits(c)) - 1);
minVal = this.isSigned?((- 1) * (1 << (src.getNomRangeBits(c) - 1))):0;
levShift = (this.isSigned)?0:1 << (src.getNomRangeBits(c) - 1);
}
/// <summary> Creates a new writer to the specified File object, to write data from
/// the specified component.
///
/// <p>The size of the image that is written to the file is the size of the
/// component from which to get the data, specified by b, not the size of
/// the source image (they differ if there is some sub-sampling).</p>
///
/// </summary>
/// <param name="out">The file where to write the data
///
/// </param>
/// <param name="imgSrc">The source from where to get the image data to write.
///
/// </param>
/// <param name="c">The index of the component from where to get the data.
///
/// </param>
public ImgWriterPGM(IFileInfo out_Renamed, BlkImgDataSrc imgSrc, int c)
{
// Check that imgSrc is of the correct type
// Check that the component index is valid
if (c < 0 || c >= imgSrc.NumComps)
{
throw new System.ArgumentException("Invalid number of components");
}
// Check that imgSrc is of the correct type
if (imgSrc.getNomRangeBits(c) > 8)
{
FacilityManager.getMsgLogger().println("Warning: Component " + c + " has nominal bitdepth " + imgSrc.getNomRangeBits(c) + ". Pixel values will be " + "down-shifted to fit bitdepth of 8 for PGM file", 8, 8);
}
// Initialize
if (out_Renamed.Exists && !out_Renamed.Delete())
{
throw new System.IO.IOException("Could not reset file");
}
this.out_Renamed = SupportClass.RandomAccessFileSupport.CreateRandomAccessFile(out_Renamed, "rw");
src = imgSrc;
this.c = c;
w = imgSrc.ImgWidth;
h = imgSrc.ImgHeight;
fb = imgSrc.getFixedPoint(c);
levShift = 1 << (imgSrc.getNomRangeBits(c) - 1);
writeHeaderInfo();
}
public static byte[] ToBytes(BlkImgDataSrc imgsrc, ParameterList parameters = null)
{
// Initialize default parameters
ParameterList defpl = GetDefaultEncoderParameterList(encoder_pinfo);
// Create parameter list using defaults
ParameterList pl = parameters ?? new ParameterList(defpl);
bool useFileFormat = false;
bool pphTile = false;
bool pphMain = false;
bool tempSop = false;
bool tempEph = false;
// **** Get general parameters ****
if (pl.getParameter("file_format").Equals("on"))
{
useFileFormat = true;
if (pl.getParameter("rate") != null && pl.getFloatParameter("rate") != defpl.getFloatParameter("rate"))
{
warning("Specified bit-rate applies only on the codestream but not on the whole file.");
}
}
if (pl.getParameter("tiles") == null)
{
error("No tiles option specified", 2);
return null;
}
if (pl.getParameter("pph_tile").Equals("on"))
{
pphTile = true;
if (pl.getParameter("Psop").Equals("off"))
{
pl["Psop"] = "on";
tempSop = true;
}
if (pl.getParameter("Peph").Equals("off"))
{
pl["Peph"] = "on";
tempEph = true;
}
}
if (pl.getParameter("pph_main").Equals("on"))
{
pphMain = true;
if (pl.getParameter("Psop").Equals("off"))
{
pl["Psop"] = "on";
tempSop = true;
}
if (pl.getParameter("Peph").Equals("off"))
{
pl["Peph"] = "on";
tempEph = true;
}
}
if (pphTile && pphMain) error("Can't have packed packet headers in both main and" + " tile headers", 2);
if (pl.getBooleanParameter("lossless") && pl.getParameter("rate") != null
&& pl.getFloatParameter("rate") != defpl.getFloatParameter("rate")) throw new ArgumentException("Cannot use '-rate' and " + "'-lossless' option at " + " the same time.");
if (pl.getParameter("rate") == null)
{
error("Target bitrate not specified", 2);
return null;
}
float rate;
try
{
rate = pl.getFloatParameter("rate");
if (rate == -1)
{
rate = float.MaxValue;
}
}
catch (FormatException e)
{
error("Invalid value in 'rate' option: " + pl.getParameter("rate"), 2);
return null;
}
int pktspertp;
try
{
pktspertp = pl.getIntParameter("tile_parts");
if (pktspertp != 0)
{
if (pl.getParameter("Psop").Equals("off"))
{
pl["Psop"] = "on";
tempSop = true;
}
if (pl.getParameter("Peph").Equals("off"))
{
pl["Peph"] = "on";
tempEph = true;
}
}
}
catch (FormatException e)
{
error("Invalid value in 'tile_parts' option: " + pl.getParameter("tile_parts"), 2);
return null;
}
// **** ImgReader ****
var ncomp = imgsrc.NumComps;
var ppminput = imgsrc.NumComps > 1;
// **** Tiler ****
// get nominal tile dimensions
SupportClass.StreamTokenizerSupport stok =
new SupportClass.StreamTokenizerSupport(new StringReader(pl.getParameter("tiles")));
stok.EOLIsSignificant(false);
stok.NextToken();
if (stok.ttype != SupportClass.StreamTokenizerSupport.TT_NUMBER)
{
error("An error occurred while parsing the tiles option: " + pl.getParameter("tiles"), 2);
return null;
}
var tw = (int)stok.nval;
stok.NextToken();
if (stok.ttype != SupportClass.StreamTokenizerSupport.TT_NUMBER)
{
error("An error occurred while parsing the tiles option: " + pl.getParameter("tiles"), 2);
return null;
}
var th = (int)stok.nval;
// Get image reference point
var refs = pl.getParameter("ref").Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int refx;
int refy;
try
{
refx = Int32.Parse(refs[0]);
refy = Int32.Parse(refs[1]);
}
catch (IndexOutOfRangeException e)
{
throw new ArgumentException("Error while parsing 'ref' " + "option");
}
catch (FormatException e)
{
throw new ArgumentException("Invalid number type in " + "'ref' option");
}
if (refx < 0 || refy < 0)
{
throw new ArgumentException("Invalid value in 'ref' " + "option ");
}
// Get tiling reference point
var trefs = pl.getParameter("tref").Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int trefx;
int trefy;
try
{
trefx = Int32.Parse(trefs[0]);
trefy = Int32.Parse(trefs[1]);
}
catch (IndexOutOfRangeException e)
{
throw new ArgumentException("Error while parsing 'tref' " + "option");
}
catch (FormatException e)
{
throw new ArgumentException("Invalid number type in " + "'tref' option");
}
if (trefx < 0 || trefy < 0 || trefx > refx || trefy > refy)
{
throw new ArgumentException("Invalid value in 'tref' " + "option ");
}
// Instantiate tiler
Tiler imgtiler;
try
{
imgtiler = new Tiler(imgsrc, refx, refy, trefx, trefy, tw, th);
}
catch (ArgumentException e)
{
error("Could not tile image" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
int ntiles = imgtiler.getNumTiles();
// **** Encoder specifications ****
var encSpec = new EncoderSpecs(ntiles, ncomp, imgsrc, pl);
// **** Component transformation ****
if (ppminput && pl.getParameter("Mct") != null && pl.getParameter("Mct").Equals("off"))
{
FacilityManager.getMsgLogger()
.printmsg(
MsgLogger_Fields.WARNING,
"Input image is RGB and no color transform has "
+ "been specified. Compression performance and "
+ "image quality might be greatly degraded. Use "
+ "the 'Mct' option to specify a color transform");
}
ForwCompTransf fctransf;
try
{
fctransf = new ForwCompTransf(imgtiler, encSpec);
}
catch (ArgumentException e)
{
error(
"Could not instantiate forward component " + "transformation"
+ ((e.Message != null) ? (":\n" + e.Message) : ""),
2);
return null;
}
// **** ImgDataConverter ****
var converter = new ImgDataConverter(fctransf);
// **** ForwardWT ****
ForwardWT dwt;
try
{
dwt = ForwardWT.createInstance(converter, pl, encSpec);
}
catch (ArgumentException e)
{
error("Could not instantiate wavelet transform" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** Quantizer ****
Quantizer quant;
try
{
quant = Quantizer.createInstance(dwt, encSpec);
}
catch (ArgumentException e)
{
error("Could not instantiate quantizer" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** ROIScaler ****
ROIScaler rois;
try
{
rois = ROIScaler.createInstance(quant, pl, encSpec);
}
catch (ArgumentException e)
{
error("Could not instantiate ROI scaler" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** EntropyCoder ****
EntropyCoder ecoder;
try
{
ecoder = EntropyCoder.createInstance(
rois,
pl,
encSpec.cblks,
encSpec.pss,
encSpec.bms,
encSpec.mqrs,
encSpec.rts,
encSpec.css,
encSpec.sss,
encSpec.lcs,
encSpec.tts);
}
catch (ArgumentException e)
{
error("Could not instantiate entropy coder" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** CodestreamWriter ****
using (var outStream = new MemoryStream())
{
CodestreamWriter bwriter;
try
{
// Rely on rate allocator to limit amount of data
bwriter = new FileCodestreamWriter(outStream, Int32.MaxValue);
}
catch (IOException e)
{
error("Could not open output file" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** Rate allocator ****
PostCompRateAllocator ralloc;
try
{
ralloc = PostCompRateAllocator.createInstance(ecoder, pl, rate, bwriter, encSpec);
}
catch (ArgumentException e)
{
error("Could not instantiate rate allocator" + ((e.Message != null) ? (":\n" + e.Message) : ""), 2);
return null;
}
// **** HeaderEncoder ****
var imsigned = Enumerable.Repeat(false, ncomp).ToArray(); // TODO Consider supporting signed components.
var headenc = new HeaderEncoder(imgsrc, imsigned, dwt, imgtiler, encSpec, rois, ralloc, pl);
ralloc.HeaderEncoder = headenc;
// **** Write header to be able to estimate header overhead ****
headenc.encodeMainHeader();
// **** Initialize rate allocator, with proper header
// overhead. This will also encode all the data ****
ralloc.initialize();
// **** Write header (final) ****
headenc.reset();
headenc.encodeMainHeader();
// Insert header into the codestream
bwriter.commitBitstreamHeader(headenc);
// **** Now do the rate-allocation and write result ****
ralloc.runAndWrite();
// **** Done ****
bwriter.close();
// **** Calculate file length ****
int fileLength = bwriter.Length;
// **** Tile-parts and packed packet headers ****
if (pktspertp > 0 || pphTile || pphMain)
{
try
{
CodestreamManipulator cm = new CodestreamManipulator(
outStream,
ntiles,
pktspertp,
pphMain,
pphTile,
tempSop,
tempEph);
fileLength += cm.doCodestreamManipulation();
//String res="";
if (pktspertp > 0)
{
FacilityManager.getMsgLogger()
.println(
"Created tile-parts " + "containing at most " + pktspertp + " packets per tile.",
4,
6);
}
if (pphTile)
{
FacilityManager.getMsgLogger().println("Moved packet headers " + "to tile headers", 4, 6);
}
if (pphMain)
{
FacilityManager.getMsgLogger().println("Moved packet headers " + "to main header", 4, 6);
}
}
catch (IOException e)
{
error(
"Error while creating tileparts or packed packet" + " headers"
+ ((e.Message != null) ? (":\n" + e.Message) : ""),
2);
return null;
}
}
// **** File Format ****
if (useFileFormat)
{
try
{
int nc = imgsrc.NumComps;
int[] bpc = new int[nc];
for (int comp = 0; comp < nc; comp++)
{
bpc[comp] = imgsrc.getNomRangeBits(comp);
}
outStream.Seek(0, SeekOrigin.Begin);
var ffw = new FileFormatWriter(
outStream,
imgsrc.ImgHeight,
imgsrc.ImgWidth,
nc,
bpc,
fileLength);
fileLength += ffw.writeFileFormat();
}
catch (IOException e)
{
throw new InvalidOperationException("Error while writing JP2 file format: " + e.Message);
}
}
// **** Close image readers ***
imgsrc.close();
return outStream.ToArray();
}
}
