/// <summary> Initializes the header writer with the references to the coding chain.
///
/// </summary>
/// <param name="origsrc">The original image data (before any component mixing,
/// tiling, etc.)
///
/// </param>
/// <param name="isorigsig">An array specifying for each component if it was
/// originally signed or not.
///
/// </param>
/// <param name="dwt">The discrete wavelet transform module.
///
/// </param>
/// <param name="tiler">The tiler module.
///
/// </param>
/// <param name="encSpec">The encoder specifications
///
/// </param>
/// <param name="roiSc">The ROI scaler module.
///
/// </param>
/// <param name="ralloc">The post compression rate allocator.
///
/// </param>
/// <param name="pl">ParameterList instance.
///
/// </param>
public HeaderEncoder(ImgData origsrc, bool[] isorigsig, ForwardWT dwt, Tiler tiler, EncoderSpecs encSpec, ROIScaler roiSc, PostCompRateAllocator ralloc, ParameterList pl)
{
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
if (origsrc.NumComps != isorigsig.Length)
{
throw new System.ArgumentException();
}
this.origSrc = origsrc;
this.isOrigSig = isorigsig;
this.dwt = dwt;
this.tiler = tiler;
this.encSpec = encSpec;
this.roiSc = roiSc;
this.ralloc = ralloc;
baos = new System.IO.MemoryStream();
//UPGRADE_TODO: Class 'java.io.DataOutputStream' was converted to 'System.IO.BinaryWriter' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioDataOutputStream'"
hbuf = new CSJ2K.Util.EndianBinaryWriter(baos, true);
nComp = origsrc.NumComps;
enJJ2KMarkSeg = pl.getBooleanParameter("Hjj2000_COM");
otherCOMMarkSeg = pl.getParameter("HCOM");
}
/// <summary> Initializes the EBCOT rate allocator of entropy coded data. The layout
/// of layers, and their bitrate constraints, is specified by the 'lyrs'
/// parameter.
///
/// </summary>
/// <param name="src">The source of entropy coded data.
///
/// </param>
/// <param name="lyrs">The layers layout specification.
///
/// </param>
/// <param name="writer">The bit stream writer.
///
/// </param>
/// <seealso cref="ProgressionType">
///
/// </seealso>
public EBCOTRateAllocator(CodedCBlkDataSrcEnc src, LayersInfo lyrs, CodestreamWriter writer, EncoderSpecs encSpec, ParameterList pl)
: base(src, lyrs.TotNumLayers, writer, encSpec)
{
int minsbi, maxsbi;
int i;
SubbandAn sb, sb2;
Coord ncblks = null;
// If we do timing create necessary structures
#if DO_TIMING
// If we are timing make sure that 'finalize' gets called.
//UPGRADE_ISSUE: Method 'java.lang.System.runFinalizersOnExit' was not converted. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1000_javalangSystem'"
// CONVERSION PROBLEM?
//System_Renamed.runFinalizersOnExit(true);
// The System.runFinalizersOnExit() method is deprecated in Java
// 1.2 since it can cause a deadlock in some cases. However, here
// we use it only for profiling purposes and is disabled in
// production code.
initTime = 0L;
buildTime = 0L;
writeTime = 0L;
#endif
// Save the layer specs
lyrSpec = lyrs;
//Initialize the size of the RD slope rates array
RDSlopesRates = new int[RD_SUMMARY_SIZE];
//Get number of tiles, components
int nt = src.getNumTiles();
int nc = NumComps;
//Allocate the coded code-blocks and truncation points indexes arrays
cblks = new CBlkRateDistStats[nt][][][][];
for (int i2 = 0; i2 < nt; i2++)
{
cblks[i2] = new CBlkRateDistStats[nc][][][];
}
truncIdxs = new int[nt][][][][][];
for (int i3 = 0; i3 < nt; i3++)
{
truncIdxs[i3] = new int[num_Layers][][][][];
for (int i4 = 0; i4 < num_Layers; i4++)
{
truncIdxs[i3][i4] = new int[nc][][][];
}
}
int cblkPerSubband; // Number of code-blocks per subband
int mrl; // Number of resolution levels
int l; // layer index
int s; //subband index
// Used to compute the maximum number of precincts for each resolution
// level
int tx0, ty0, tx1, ty1; // Current tile position in the reference grid
int tcx0, tcy0, tcx1, tcy1; // Current tile position in the domain of
// the image component
int trx0, try0, trx1, try1; // Current tile position in the reduced
// resolution image domain
int xrsiz, yrsiz; // Component sub-sampling factors
Coord tileI = null;
Coord nTiles = null;
int xsiz, ysiz, x0siz, y0siz;
int xt0siz, yt0siz;
int xtsiz, ytsiz;
int cb0x = src.CbULX;
int cb0y = src.CbULY;
src.setTile(0, 0);
for (int t = 0; t < nt; t++)
{
// Loop on tiles
nTiles = src.getNumTiles(nTiles);
tileI = src.getTile(tileI);
x0siz = ImgULX;
y0siz = ImgULY;
xsiz = x0siz + ImgWidth;
ysiz = y0siz + ImgHeight;
xt0siz = src.TilePartULX;
yt0siz = src.TilePartULY;
xtsiz = src.NomTileWidth;
ytsiz = src.NomTileHeight;
// Tile's coordinates on the reference grid
tx0 = (tileI.x == 0)?x0siz:xt0siz + tileI.x * xtsiz;
ty0 = (tileI.y == 0)?y0siz:yt0siz + tileI.y * ytsiz;
tx1 = (tileI.x != nTiles.x - 1)?xt0siz + (tileI.x + 1) * xtsiz:xsiz;
ty1 = (tileI.y != nTiles.y - 1)?yt0siz + (tileI.y + 1) * ytsiz:ysiz;
for (int c = 0; c < nc; c++)
{
// loop on components
//Get the number of resolution levels
sb = src.getAnSubbandTree(t, c);
mrl = sb.resLvl + 1;
// Initialize maximum number of precincts per resolution array
if (numPrec == null)
{
Coord[][][] tmpArray = new Coord[nt][][];
for (int i5 = 0; i5 < nt; i5++)
{
tmpArray[i5] = new Coord[nc][];
}
numPrec = tmpArray;
}
if (numPrec[t][c] == null)
{
numPrec[t][c] = new Coord[mrl];
}
// Subsampling factors
xrsiz = src.getCompSubsX(c);
yrsiz = src.getCompSubsY(c);
// Tile's coordinates in the image component domain
//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'"
tcx0 = (int) System.Math.Ceiling(tx0 / (double) (xrsiz));
//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'"
tcy0 = (int) System.Math.Ceiling(ty0 / (double) (yrsiz));
//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'"
tcx1 = (int) System.Math.Ceiling(tx1 / (double) (xrsiz));
//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'"
tcy1 = (int) System.Math.Ceiling(ty1 / (double) (yrsiz));
cblks[t][c] = new CBlkRateDistStats[mrl][][];
for (l = 0; l < num_Layers; l++)
{
truncIdxs[t][l][c] = new int[mrl][][];
}
for (int r = 0; r < mrl; r++)
{
// loop on resolution levels
// Tile's coordinates in the reduced resolution image
// domain
//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'"
trx0 = (int) System.Math.Ceiling(tcx0 / (double) (1 << (mrl - 1 - r)));
//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'"
try0 = (int) System.Math.Ceiling(tcy0 / (double) (1 << (mrl - 1 - r)));
//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'"
trx1 = (int) System.Math.Ceiling(tcx1 / (double) (1 << (mrl - 1 - r)));
//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'"
try1 = (int) System.Math.Ceiling(tcy1 / (double) (1 << (mrl - 1 - r)));
// Calculate the maximum number of precincts for each
// resolution level taking into account tile specific
// options.
double twoppx = (double) encSpec.pss.getPPX(t, c, r);
double twoppy = (double) encSpec.pss.getPPY(t, c, r);
numPrec[t][c][r] = new Coord();
if (trx1 > trx0)
{
//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'"
numPrec[t][c][r].x = (int) System.Math.Ceiling((trx1 - cb0x) / twoppx) - (int) System.Math.Floor((trx0 - cb0x) / twoppx);
}
else
{
numPrec[t][c][r].x = 0;
}
if (try1 > try0)
{
//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'"
numPrec[t][c][r].y = (int) System.Math.Ceiling((try1 - cb0y) / twoppy) - (int) System.Math.Floor((try0 - cb0y) / (double) twoppy);
}
else
{
numPrec[t][c][r].y = 0;
}
minsbi = (r == 0)?0:1;
maxsbi = (r == 0)?1:4;
cblks[t][c][r] = new CBlkRateDistStats[maxsbi][];
for (l = 0; l < num_Layers; l++)
{
truncIdxs[t][l][c][r] = new int[maxsbi][];
}
for (s = minsbi; s < maxsbi; s++)
{
// loop on subbands
//Get the number of blocks in the current subband
sb2 = (SubbandAn) sb.getSubbandByIdx(r, s);
ncblks = sb2.numCb;
cblkPerSubband = ncblks.x * ncblks.y;
cblks[t][c][r][s] = new CBlkRateDistStats[cblkPerSubband];
for (l = 0; l < num_Layers; l++)
{
truncIdxs[t][l][c][r][s] = new int[cblkPerSubband];
for (i = 0; i < cblkPerSubband; i++)
{
truncIdxs[t][l][c][r][s][i] = - 1;
}
}
} // End loop on subbands
} // End lopp on resolution levels
} // End loop on components
if (t != nt - 1)
{
src.nextTile();
}
} // End loop on tiles
//Initialize the packet encoder
pktEnc = new PktEncoder(src, encSpec, numPrec, pl);
// The layers array has to be initialized after the constructor since
// it is needed that the bit stream header has been entirely written
}
/// <summary> Creates a new packet encoder object, using the information from the
/// 'infoSrc' object.
///
/// </summary>
/// <param name="infoSrc">The source of information to construct the object.
///
/// </param>
/// <param name="encSpec">The encoding parameters.
///
/// </param>
/// <param name="numPrec">Maximum number of precincts in each tile, component
/// and resolution level.
///
/// </param>
/// <param name="pl">ParameterList instance that holds command line options
///
/// </param>
public PktEncoder(CodedCBlkDataSrcEnc infoSrc, EncoderSpecs encSpec, Coord[][][] numPrec, ParameterList pl)
{
this.infoSrc = infoSrc;
this.encSpec = encSpec;
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Get number of components and tiles
int nc = infoSrc.NumComps;
int nt = infoSrc.getNumTiles();
// Do initial allocation
ttIncl = new TagTreeEncoder[nt][][][][];
for (int i = 0; i < nt; i++)
{
ttIncl[i] = new TagTreeEncoder[nc][][][];
}
ttMaxBP = new TagTreeEncoder[nt][][][][];
for (int i2 = 0; i2 < nt; i2++)
{
ttMaxBP[i2] = new TagTreeEncoder[nc][][][];
}
lblock = new int[nt][][][][];
for (int i3 = 0; i3 < nt; i3++)
{
lblock[i3] = new int[nc][][][];
}
prevtIdxs = new int[nt][][][][];
for (int i4 = 0; i4 < nt; i4++)
{
prevtIdxs[i4] = new int[nc][][][];
}
ppinfo = new PrecInfo[nt][][][];
for (int i5 = 0; i5 < nt; i5++)
{
ppinfo[i5] = new PrecInfo[nc][][];
}
// Finish allocation
SubbandAn root, sb;
int maxs, mins;
int mrl;
//Coord tmpCoord = null;
int numcb; // Number of code-blocks
//System.Collections.ArrayList cblks = null;
infoSrc.setTile(0, 0);
for (int t = 0; t < nt; t++)
{
// Loop on tiles
for (int c = 0; c < nc; c++)
{
// Loop on components
// Get number of resolution levels
root = infoSrc.getAnSubbandTree(t, c);
mrl = root.resLvl;
lblock[t][c] = new int[mrl + 1][][];
ttIncl[t][c] = new TagTreeEncoder[mrl + 1][][];
ttMaxBP[t][c] = new TagTreeEncoder[mrl + 1][][];
prevtIdxs[t][c] = new int[mrl + 1][][];
ppinfo[t][c] = new PrecInfo[mrl + 1][];
for (int r = 0; r <= mrl; r++)
{
// Loop on resolution levels
mins = (r == 0)?0:1;
maxs = (r == 0)?1:4;
int maxPrec = numPrec[t][c][r].x * numPrec[t][c][r].y;
ttIncl[t][c][r] = new TagTreeEncoder[maxPrec][];
for (int i6 = 0; i6 < maxPrec; i6++)
{
ttIncl[t][c][r][i6] = new TagTreeEncoder[maxs];
}
ttMaxBP[t][c][r] = new TagTreeEncoder[maxPrec][];
for (int i7 = 0; i7 < maxPrec; i7++)
{
ttMaxBP[t][c][r][i7] = new TagTreeEncoder[maxs];
}
prevtIdxs[t][c][r] = new int[maxs][];
lblock[t][c][r] = new int[maxs][];
// Precincts and code-blocks
ppinfo[t][c][r] = new PrecInfo[maxPrec];
fillPrecInfo(t, c, r);
for (int s = mins; s < maxs; s++)
{
// Loop on subbands
sb = (SubbandAn) root.getSubbandByIdx(r, s);
numcb = sb.numCb.x * sb.numCb.y;
lblock[t][c][r][s] = new int[numcb];
ArrayUtil.intArraySet(lblock[t][c][r][s], INIT_LBLOCK);
prevtIdxs[t][c][r][s] = new int[numcb];
ArrayUtil.intArraySet(prevtIdxs[t][c][r][s], - 1);
}
}
}
if (t != nt - 1)
infoSrc.nextTile();
}
}
/// <summary> Initializes this object with the given source of image data and with
/// all the decompositon parameters
///
/// </summary>
/// <param name="src">From where the image data should be obtained.
///
/// </param>
/// <param name="encSpec">The encoder specifications
///
/// </param>
/// <param name="cb0x">The horizontal coordinate of the code-block partition
/// origin on the reference grid.
///
/// </param>
/// <param name="cb0y">The vertical coordinate of the code-block partition origin
/// on the reference grid.
///
/// </param>
/// <seealso cref="ForwardWT">
///
/// </seealso>
public ForwWTFull(BlkImgDataSrc src, EncoderSpecs encSpec, int cb0x, int cb0y):base(src)
{
this.src = src;
this.cb0x = cb0x;
this.cb0y = cb0y;
this.dls = encSpec.dls;
this.filters = encSpec.wfs;
this.cblks = encSpec.cblks;
this.pss = encSpec.pss;
int ncomp = src.NumComps;
int ntiles = src.getNumTiles();
currentSubband = new SubbandAn[ncomp];
decomposedComps = new DataBlk[ncomp];
subbTrees = new SubbandAn[ntiles][];
for (int i = 0; i < ntiles; i++)
{
subbTrees[i] = new SubbandAn[ncomp];
}
lastn = new int[ncomp];
lastm = new int[ncomp];
}
/// <summary> Calculates the maximum amount of magnitude bits for each
/// tile-component, and stores it in the 'maxMagBits' array. This is called
/// by the constructor
///
/// </summary>
/// <param name="encSpec">The encoder specifications for addition of roi specs
///
/// </param>
private void calcMaxMagBits(EncoderSpecs encSpec)
{
int tmp;
MaxShiftSpec rois = encSpec.rois;
int nt = src.getNumTiles();
int nc = src.NumComps;
maxMagBits = new int[nt][];
for (int i = 0; i < nt; i++)
{
maxMagBits[i] = new int[nc];
}
src.setTile(0, 0);
for (int t = 0; t < nt; t++)
{
for (int c = nc - 1; c >= 0; c--)
{
tmp = src.getMaxMagBits(c);
maxMagBits[t][c] = tmp;
rois.setTileCompVal(t, c, (System.Object) tmp);
}
if (t < nt - 1)
src.nextTile();
}
// Reset to current initial tile position
src.setTile(0, 0);
}
/// <summary> Creates a ForwardWT object with the specified filters, and with other
/// options specified in the parameter list 'pl'.
///
/// </summary>
/// <param name="src">The source of data to be transformed
///
/// </param>
/// <param name="pl">The parameter list (or options).
///
/// </param>
/// <param name="kers">The encoder specifications.
///
/// </param>
/// <returns> A new ForwardWT object with the specified filters and options
/// from 'pl'.
///
/// </returns>
/// <exception cref="IllegalArgumentException">If mandatory parameters are missing
/// or if invalid values are given.
///
/// </exception>
public static ForwardWT createInstance(BlkImgDataSrc src, ParameterList pl, EncoderSpecs encSpec)
{
int deflev; // defdec removed
//System.String decompstr;
//System.String wtstr;
//System.String pstr;
//SupportClass.StreamTokenizerSupport stok;
//SupportClass.Tokenizer strtok;
//int prefx, prefy; // Partitioning reference point coordinates
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
deflev = ((System.Int32) encSpec.dls.getDefault());
// Code-block partition origin
System.String str = "";
if (pl.getParameter("Wcboff") == null)
{
throw new System.ApplicationException("You must specify an argument to the '-Wcboff' " + "option. See usage with the '-u' option");
}
SupportClass.Tokenizer stk = new SupportClass.Tokenizer(pl.getParameter("Wcboff"));
if (stk.Count != 2)
{
throw new System.ArgumentException("'-Wcboff' option needs two" + " arguments. See usage with " + "the '-u' option.");
}
int cb0x = 0;
str = stk.NextToken();
try
{
cb0x = (System.Int32.Parse(str));
}
catch (System.FormatException)
{
throw new System.ArgumentException("Bad first parameter for the " + "'-Wcboff' option: " + str);
}
if (cb0x < 0 || cb0x > 1)
{
throw new System.ArgumentException("Invalid horizontal " + "code-block partition origin.");
}
int cb0y = 0;
str = stk.NextToken();
try
{
cb0y = (System.Int32.Parse(str));
}
catch (System.FormatException)
{
throw new System.ArgumentException("Bad second parameter for the " + "'-Wcboff' option: " + str);
}
if (cb0y < 0 || cb0y > 1)
{
throw new System.ArgumentException("Invalid vertical " + "code-block partition origin.");
}
if (cb0x != 0 || cb0y != 0)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Code-blocks partition origin is " + "different from (0,0). This is defined in JPEG 2000" + " part 2 and may be not supported by all JPEG 2000 " + "decoders.");
}
return new ForwWTFull(src, encSpec, cb0x, cb0y);
}
/// <summary> Constructor of the ROI scaler, takes a Quantizer as source of data to
/// scale.
///
/// </summary>
/// <param name="src">The quantizer that is the source of data.
///
/// </param>
/// <param name="mg">The mask generator that will be used for all components
///
/// </param>
/// <param name="roi">Flag indicating whether there are rois specified.
///
/// </param>
/// <param name="sLev">The resolution levels that belong entirely to ROI
///
/// </param>
/// <param name="uba">Flag indicating whether block aligning is used.
///
/// </param>
/// <param name="encSpec">The encoder specifications for addition of roi specs
///
/// </param>
public ROIScaler(Quantizer src, ROIMaskGenerator mg, bool roi, int sLev, bool uba, EncoderSpecs encSpec):base(src)
{
this.src = src;
this.roi = roi;
this.useStartLevel = sLev;
if (roi)
{
// If there is no ROI, no need to do this
this.mg = mg;
roiMask = new DataBlkInt();
calcMaxMagBits(encSpec);
blockAligned = uba;
}
}
/// <summary> Creates a ROIScaler object. The Quantizer is the source of data to
/// scale.
///
/// <p>The ROI Scaler creates a ROIMaskGenerator depending on what ROI
/// information is in the ParameterList. If only rectangular ROI are used,
/// the fast mask generator for rectangular ROI can be used.</p>
///
/// </summary>
/// <param name="src">The source of data to scale
///
/// </param>
/// <param name="pl">The parameter list (or options).
///
/// </param>
/// <param name="encSpec">The encoder specifications for addition of roi specs
///
/// </param>
/// <exception cref="IllegalArgumentException">If an error occurs while parsing
/// the options in 'pl'
///
/// </exception>
public static ROIScaler createInstance(Quantizer src, ParameterList pl, EncoderSpecs encSpec)
{
System.Collections.ArrayList roiVector = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
ROIMaskGenerator maskGen = null;
// Check parameters
pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Get parameters and check if there are and ROIs specified
System.String roiopt = pl.getParameter("Rroi");
if (roiopt == null)
{
// No ROIs specified! Create ROIScaler with no mask generator
return new ROIScaler(src, null, false, - 1, false, encSpec);
}
// Check if the lowest resolution levels should belong to the ROI
int sLev = pl.getIntParameter("Rstart_level");
// Check if the ROIs are block-aligned
bool useBlockAligned = pl.getBooleanParameter("Ralign");
// Check if generic mask generation is specified
bool onlyRect = !pl.getBooleanParameter("Rno_rect");
// Parse the ROIs
parseROIs(roiopt, src.NumComps, roiVector);
ROI[] roiArray = new ROI[roiVector.Count];
roiVector.CopyTo(roiArray);
// If onlyRect has been forced, check if there are any non-rectangular
// ROIs specified. Currently, only the presence of circular ROIs will
// make this false
if (onlyRect)
{
for (int i = roiArray.Length - 1; i >= 0; i--)
if (!roiArray[i].rect)
{
onlyRect = false;
break;
}
}
if (onlyRect)
{
// It's possible to use the fast ROI mask generation when only
// rectangular ROIs are specified.
maskGen = new RectROIMaskGenerator(roiArray, src.NumComps);
}
else
{
// It's necessary to use the generic mask generation
maskGen = new ArbROIMaskGenerator(roiArray, src.NumComps, src);
}
return new ROIScaler(src, maskGen, true, sLev, useBlockAligned, encSpec);
}
/// <summary> Creates a Quantizer object for the appropriate type of quantization
/// specified in the options in the parameter list 'pl', and having 'src'
/// as the source of data to be quantized. The 'rev' flag indicates if the
/// quantization should be reversible.
///
/// NOTE: At the moment only sources of wavelet data that implement the
/// 'CBlkWTDataSrc' interface are supported.
///
/// </summary>
/// <param name="src">The source of data to be quantized
///
/// </param>
/// <param name="encSpec">Encoder specifications
///
/// </param>
/// <exception cref="IllegalArgumentException">If an error occurs while parsing
/// the options in 'pl'
///
/// </exception>
public static Quantizer createInstance(CBlkWTDataSrc src, EncoderSpecs encSpec)
{
// Instantiate quantizer
return new StdQuantizer(src, encSpec);
}
public static byte[] EncodeJPEG(Image jpgImage)
{
Tiler imgtiler;
ForwCompTransf fctransf;
ImgDataConverter converter;
EncoderSpecs encSpec;
ForwardWT dwt;
Quantizer quant;
ROIScaler rois;
EntropyCoder ecoder;
PostCompRateAllocator ralloc;
HeaderEncoder headenc;
CodestreamWriter bwriter;
float rate = Single.MaxValue;
ImgReaderGDI imgsrc = new ImgReaderGDI(jpgImage);
imgtiler = new Tiler(imgsrc, 0, 0, 0, 0, jpgImage.Width, jpgImage.Height);
int ntiles = imgtiler.getNumTiles();
encSpec = new EncoderSpecs(ntiles, 3, imgsrc, pl);
fctransf = new ForwCompTransf(imgtiler, encSpec);
converter = new ImgDataConverter(fctransf);
dwt = ForwardWT.createInstance(converter, pl, encSpec);
quant = Quantizer.createInstance(dwt, encSpec);
rois = ROIScaler.createInstance(quant, pl, encSpec);
ecoder = EntropyCoder.createInstance(rois, pl, encSpec.cblks,
encSpec.pss, encSpec.bms,
encSpec.mqrs, encSpec.rts,
encSpec.css, encSpec.sss,
encSpec.lcs, encSpec.tts);
using (MemoryStream stream = new MemoryStream())
{
bwriter = new FileCodestreamWriter(stream, Int32.MaxValue);
ralloc = PostCompRateAllocator.createInstance(ecoder, pl, rate, bwriter, encSpec);
headenc = new HeaderEncoder(imgsrc, new bool[3], dwt, imgtiler, encSpec, rois, ralloc, pl);
ralloc.HeaderEncoder = headenc;
headenc.encodeMainHeader();
ralloc.initialize();
headenc.reset();
headenc.encodeMainHeader();
bwriter.commitBitstreamHeader(headenc);
ralloc.runAndWrite();
bwriter.close();
return stream.ToArray();
}
}
/// <summary> Constructs a new ForwCompTransf object that operates on the specified
/// source of image data.
///
/// </summary>
/// <param name="imgSrc">The source from where to get the data to be transformed
///
/// </param>
/// <param name="encSpec">The encoder specifications
///
/// </param>
/// <seealso cref="BlkImgDataSrc">
///
/// </seealso>
public ForwCompTransf(BlkImgDataSrc imgSrc, EncoderSpecs encSpec):base(imgSrc)
{
this.cts = encSpec.cts;
this.wfs = encSpec.wfs;
src = imgSrc;
}
/// <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);
}
/// <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> Initializes the source of wavelet transform coefficients. The
/// constructor takes information on whether the quantizer is in
/// reversible, derived or expounded mode. If the quantizer is reversible
/// the value of 'derived' is ignored. If the source data is not integer
/// (int) then the quantizer can not be reversible.
///
/// <p>After initializing member attributes, getAnSubbandTree is called for
/// all components setting the 'stepWMSE' for all subbands in the current
/// tile.</p>
///
/// </summary>
/// <param name="src">The source of wavelet transform coefficients.
///
/// </param>
/// <param name="encSpec">The encoder specifications
///
/// </param>
public StdQuantizer(CBlkWTDataSrc src, EncoderSpecs encSpec):base(src)
{
qts = encSpec.qts;
qsss = encSpec.qsss;
gbs = encSpec.gbs;
}
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();
}
}
