/// <summary> Splits the current subband in its four subbands. It changes the status
/// of this element (from a leaf to a node, and sets the filters), creates
/// the childs and initializes them. An IllegalArgumentException is thrown
/// if this subband is not a leaf.
///
/// <p>It uses the initChilds() method to initialize the childs.</p>
///
/// </summary>
/// <param name="hfilter">The horizontal wavelet filter used to decompose this
/// subband. It has to be a SynWTFilter object.
///
/// </param>
/// <param name="vfilter">The vertical wavelet filter used to decompose this
/// subband. It has to be a SynWTFilter object.
///
/// </param>
/// <returns> A reference to the LL leaf (subb_LL).
///
/// </returns>
/// <seealso cref="Subband.initChilds">
///
/// </seealso>
protected internal override Subband split(WaveletFilter hfilter, WaveletFilter vfilter)
{
// Test that this is a node
if (isNode)
{
throw new System.ArgumentException();
}
// Modify this element into a node and set the filters
isNode = true;
this.hFilter = (SynWTFilter)hfilter;
this.vFilter = (SynWTFilter)vfilter;
// Create childs
subb_LL = new SubbandSyn();
subb_LH = new SubbandSyn();
subb_HL = new SubbandSyn();
subb_HH = new SubbandSyn();
// Assign parent
subb_LL.parent = this;
subb_HL.parent = this;
subb_LH.parent = this;
subb_HH.parent = this;
// Initialize childs
initChilds();
// Return reference to LL subband
return(subb_LL);
}
/// <summary> Splits the current subband in its four subbands. It changes the status
/// of this element (from a leaf to a node, and sets the filters), creates
/// the childs and initializes them. An IllegalArgumentException is thrown
/// if this subband is not a leaf.
///
/// <p>It uses the initChilds() method to initialize the childs.</p>
///
/// </summary>
/// <param name="hfilter">The horizontal wavelet filter used to decompose this
/// subband. It has to be a SynWTFilter object.
///
/// </param>
/// <param name="vfilter">The vertical wavelet filter used to decompose this
/// subband. It has to be a SynWTFilter object.
///
/// </param>
/// <returns> A reference to the LL leaf (subb_LL).
///
/// </returns>
/// <seealso cref="Subband.initChilds">
///
/// </seealso>
protected internal override Subband split(WaveletFilter hfilter, WaveletFilter vfilter)
{
// Test that this is a node
if (isNode)
{
throw new System.ArgumentException();
}
// Modify this element into a node and set the filters
isNode = true;
this.hFilter = (SynWTFilter) hfilter;
this.vFilter = (SynWTFilter) vfilter;
// Create childs
subb_LL = new SubbandSyn();
subb_LH = new SubbandSyn();
subb_HL = new SubbandSyn();
subb_HH = new SubbandSyn();
// Assign parent
subb_LL.parent = this;
subb_HL.parent = this;
subb_LH.parent = this;
subb_HH.parent = this;
// Initialize childs
initChilds();
// Return reference to LL subband
return subb_LL;
}
/// <summary> Reads the COC marker segment and realigns the codestream where the next
/// marker should be found.
///
/// </summary>
/// <param name="ehs">The encoder header stream.
///
/// </param>
/// <param name="mainh">Flag indicating whether or not this marker segment is read
/// from the main header.
///
/// </param>
/// <param name="tileIdx">The index of the current tile
///
/// </param>
/// <param name="tpIdx">Tile-part index
///
/// </param>
/// <exception cref="IOException">If an I/O error occurs while reading from the
/// encoder header stream
///
/// </exception>
//UPGRADE_TODO: Class 'java.io.DataInputStream' was converted to 'System.IO.BinaryReader' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioDataInputStream'"
private void readCOC(System.IO.BinaryReader ehs, bool mainh, int tileIdx, int tpIdx)
{
int cComp; // current component
SynWTFilter[] hfilters, vfilters;
//int tmp, l;
int ecOptions;
System.Int32[] cblk;
System.String errMsg;
HeaderInfo.COC ms = hi.NewCOC;
// Lcoc (marker length)
ms.lcoc = ehs.ReadUInt16();
// Ccoc
if (nComp < 257)
{
cComp = ms.ccoc = ehs.ReadByte();
}
else
{
cComp = ms.ccoc = ehs.ReadUInt16();
}
if (cComp >= nComp)
{
throw new CorruptedCodestreamException("Invalid component index " + "in QCC marker");
}
// Scoc (block style)
int cstyle = ms.scoc = ehs.ReadByte();
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_PRECINCT_PARTITION) != 0)
{
precinctPartitionIsUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_PRECINCT_PARTITION);
}
else
{
precinctPartitionIsUsed = false;
}
// SPcoc
// decomposition levels
int mrl = ms.spcoc_ndl = ehs.ReadByte();
// Read the code-blocks dimensions
cblk = new System.Int32[2];
ms.spcoc_cw = ehs.ReadByte();
cblk[0] = (System.Int32) (1 << (ms.spcoc_cw + 2));
if (cblk[0] < CSJ2K.j2k.entropy.StdEntropyCoderOptions.MIN_CB_DIM || cblk[0] > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_DIM)
{
errMsg = "Non-valid code-block width in SPcod field, " + "COC marker";
throw new CorruptedCodestreamException(errMsg);
}
ms.spcoc_ch = ehs.ReadByte();
cblk[1] = (System.Int32) (1 << (ms.spcoc_ch + 2));
if (cblk[1] < CSJ2K.j2k.entropy.StdEntropyCoderOptions.MIN_CB_DIM || cblk[1] > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_DIM)
{
errMsg = "Non-valid code-block height in SPcod field, " + "COC marker";
throw new CorruptedCodestreamException(errMsg);
}
if ((cblk[0] * cblk[1]) > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_AREA)
{
errMsg = "Non-valid code-block area in SPcod field, " + "COC marker";
throw new CorruptedCodestreamException(errMsg);
}
if (mainh)
{
decSpec.cblks.setCompDef(cComp, (System.Object) (cblk));
}
else
{
decSpec.cblks.setTileCompVal(tileIdx, cComp, (System.Object) (cblk));
}
// Read entropy block mode options
// NOTE: currently OPT_SEG_SYMBOLS is not included here
ecOptions = ms.spcoc_cs = ehs.ReadByte();
if ((ecOptions & ~ (CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_BYPASS | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_RESET_MQ | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_TERM_PASS | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_VERT_STR_CAUSAL | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_PRED_TERM | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_SEG_SYMBOLS)) != 0)
{
throw new CorruptedCodestreamException("Unknown \"code-block " + "context\" in SPcoc field, " + "COC marker: 0x" + System.Convert.ToString(ecOptions, 16));
}
// Read wavelet filter for tile or image
hfilters = new SynWTFilter[1];
vfilters = new SynWTFilter[1];
hfilters[0] = readFilter(ehs, ms.spcoc_t);
vfilters[0] = hfilters[0];
// Fill the filter spec
// If this is the main header, set the default value, if it is the
// tile header, set default for this tile
SynWTFilter[][] hvfilters = new SynWTFilter[2][];
hvfilters[0] = hfilters;
hvfilters[1] = vfilters;
// Get precinct partition sizes
System.Collections.ArrayList[] v = new System.Collections.ArrayList[2];
v[0] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
v[1] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
int val = CSJ2K.j2k.codestream.Markers.PRECINCT_PARTITION_DEF_SIZE;
if (!precinctPartitionIsUsed)
{
System.Int32 w, h;
w = (System.Int32) (1 << (val & 0x000F));
v[0].Add(w);
h = (System.Int32) (1 << (((val & 0x00F0) >> 4)));
v[1].Add(h);
}
else
{
ms.spcoc_ps = new int[mrl + 1];
for (int rl = mrl; rl >= 0; rl--)
{
System.Int32 w, h;
val = ms.spcoc_ps[rl] = ehs.ReadByte();
w = (System.Int32) (1 << (val & 0x000F));
v[0].Insert(0, w);
h = (System.Int32) (1 << (((val & 0x00F0) >> 4)));
v[1].Insert(0, h);
}
}
if (mainh)
{
decSpec.pss.setCompDef(cComp, v);
}
else
{
decSpec.pss.setTileCompVal(tileIdx, cComp, v);
}
precinctPartitionIsUsed = true;
// Check marker length
checkMarkerLength(ehs, "COD marker");
if (mainh)
{
hi.cocValue["main_c" + cComp] = ms;
decSpec.wfs.setCompDef(cComp, hvfilters);
decSpec.dls.setCompDef(cComp, (System.Object) mrl);
decSpec.ecopts.setCompDef(cComp, (System.Object) ecOptions);
}
else
{
hi.cocValue["t" + tileIdx + "_c" + cComp] = ms;
decSpec.wfs.setTileCompVal(tileIdx, cComp, hvfilters);
decSpec.dls.setTileCompVal(tileIdx, cComp, (System.Object) mrl);
decSpec.ecopts.setTileCompVal(tileIdx, cComp, (System.Object) ecOptions);
}
}
/// <summary> Reads a COD marker segment and realigns the codestream where the next
/// marker should be found.
///
/// </summary>
/// <param name="ehs">The encoder header stream.
///
/// </param>
/// <param name="mainh">Flag indicating whether or not this marker segment is read
/// from the main header.
///
/// </param>
/// <param name="tileIdx">The index of the current tile
///
/// </param>
/// <param name="tpIdx">Tile-part index
///
/// </param>
/// <exception cref="IOException">If an I/O error occurs while reading from the
/// encoder header stream
///
/// </exception>
//UPGRADE_TODO: Class 'java.io.DataInputStream' was converted to 'System.IO.BinaryReader' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioDataInputStream'"
private void readCOD(System.IO.BinaryReader ehs, bool mainh, int tileIdx, int tpIdx)
{
int cstyle; // The block style
SynWTFilter[] hfilters, vfilters;
//int l;
System.Int32[] cblk;
System.String errMsg;
//bool sopUsed = false;
//bool ephUsed = false;
HeaderInfo.COD ms = hi.NewCOD;
// Lcod (marker length)
ms.lcod = ehs.ReadUInt16();
// Scod (block style)
// We only support wavelet transformed data
cstyle = ms.scod = ehs.ReadByte();
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_PRECINCT_PARTITION) != 0)
{
precinctPartitionIsUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_PRECINCT_PARTITION);
}
else
{
precinctPartitionIsUsed = false;
}
// SOP markers
if (mainh)
{
hi.codValue["main"] = ms;
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_USE_SOP) != 0)
{
// SOP markers are used
decSpec.sops.setDefault((System.Object) "true".ToUpper().Equals("TRUE"));
//sopUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_USE_SOP);
}
else
{
// SOP markers are not used
decSpec.sops.setDefault((System.Object) "false".ToUpper().Equals("TRUE"));
}
}
else
{
hi.codValue["t" + tileIdx] = ms;
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_USE_SOP) != 0)
{
// SOP markers are used
decSpec.sops.setTileDef(tileIdx, (System.Object) "true".ToUpper().Equals("TRUE"));
//sopUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_USE_SOP);
}
else
{
// SOP markers are not used
decSpec.sops.setTileDef(tileIdx, (System.Object) "false".ToUpper().Equals("TRUE"));
}
}
// EPH markers
if (mainh)
{
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_USE_EPH) != 0)
{
// EPH markers are used
decSpec.ephs.setDefault((System.Object) "true".ToUpper().Equals("TRUE"));
//ephUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_USE_EPH);
}
else
{
// EPH markers are not used
decSpec.ephs.setDefault((System.Object) "false".ToUpper().Equals("TRUE"));
}
}
else
{
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_USE_EPH) != 0)
{
// EPH markers are used
decSpec.ephs.setTileDef(tileIdx, (System.Object) "true".ToUpper().Equals("TRUE"));
//ephUsed = true;
// Remove flag
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_USE_EPH);
}
else
{
// EPH markers are not used
decSpec.ephs.setTileDef(tileIdx, (System.Object) "false".ToUpper().Equals("TRUE"));
}
}
// Code-block partition origin
if ((cstyle & (CSJ2K.j2k.codestream.Markers.SCOX_HOR_CB_PART | CSJ2K.j2k.codestream.Markers.SCOX_VER_CB_PART)) != 0)
{
FacilityManager.getMsgLogger().printmsg(CSJ2K.j2k.util.MsgLogger_Fields.WARNING, "Code-block partition origin " + "different from (0,0). This is defined in JPEG 2000" + " part 2 and may not be supported by all JPEG " + "2000 decoders.");
}
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_HOR_CB_PART) != 0)
{
if (cb0x != - 1 && cb0x == 0)
{
throw new System.ArgumentException("Code-block partition " + "origin redefined in new" + " COD marker segment. Not" + " supported by JJ2000");
}
cb0x = 1;
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_HOR_CB_PART);
}
else
{
if (cb0x != - 1 && cb0x == 1)
{
throw new System.ArgumentException("Code-block partition " + "origin redefined in new" + " COD marker segment. Not" + " supported by JJ2000");
}
cb0x = 0;
}
if ((cstyle & CSJ2K.j2k.codestream.Markers.SCOX_VER_CB_PART) != 0)
{
if (cb0y != - 1 && cb0y == 0)
{
throw new System.ArgumentException("Code-block partition " + "origin redefined in new" + " COD marker segment. Not" + " supported by JJ2000");
}
cb0y = 1;
cstyle &= ~ (CSJ2K.j2k.codestream.Markers.SCOX_VER_CB_PART);
}
else
{
if (cb0y != - 1 && cb0y == 1)
{
throw new System.ArgumentException("Code-block partition " + "origin redefined in new" + " COD marker segment. Not" + " supported by JJ2000");
}
cb0y = 0;
}
// SGcod
// Read the progressive order
ms.sgcod_po = ehs.ReadByte();
// Read the number of layers
ms.sgcod_nl = ehs.ReadUInt16();
if (ms.sgcod_nl <= 0 || ms.sgcod_nl > 65535)
{
throw new CorruptedCodestreamException("Number of layers out of " + "range: 1--65535");
}
// Multiple component transform
ms.sgcod_mct = ehs.ReadByte();
// SPcod
// decomposition levels
int mrl = ms.spcod_ndl = ehs.ReadByte();
if (mrl > 32)
{
throw new CorruptedCodestreamException("Number of decomposition " + "levels out of range: " + "0--32");
}
// Read the code-blocks dimensions
cblk = new System.Int32[2];
ms.spcod_cw = ehs.ReadByte();
cblk[0] = (System.Int32) (1 << (ms.spcod_cw + 2));
if (cblk[0] < CSJ2K.j2k.entropy.StdEntropyCoderOptions.MIN_CB_DIM || cblk[0] > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_DIM)
{
errMsg = "Non-valid code-block width in SPcod field, " + "COD marker";
throw new CorruptedCodestreamException(errMsg);
}
ms.spcod_ch = ehs.ReadByte();
cblk[1] = (System.Int32) (1 << (ms.spcod_ch + 2));
if (cblk[1] < CSJ2K.j2k.entropy.StdEntropyCoderOptions.MIN_CB_DIM || cblk[1] > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_DIM)
{
errMsg = "Non-valid code-block height in SPcod field, " + "COD marker";
throw new CorruptedCodestreamException(errMsg);
}
if ((cblk[0] * cblk[1]) > CSJ2K.j2k.entropy.StdEntropyCoderOptions.MAX_CB_AREA)
{
errMsg = "Non-valid code-block area in SPcod field, " + "COD marker";
throw new CorruptedCodestreamException(errMsg);
}
if (mainh)
{
decSpec.cblks.setDefault((System.Object) (cblk));
}
else
{
decSpec.cblks.setTileDef(tileIdx, (System.Object) (cblk));
}
// Style of the code-block coding passes
int ecOptions = ms.spcod_cs = ehs.ReadByte();
if ((ecOptions & ~ (CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_BYPASS | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_RESET_MQ | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_TERM_PASS | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_VERT_STR_CAUSAL | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_PRED_TERM | CSJ2K.j2k.entropy.StdEntropyCoderOptions.OPT_SEG_SYMBOLS)) != 0)
{
throw new CorruptedCodestreamException("Unknown \"code-block " + "style\" in SPcod field, " + "COD marker: 0x" + System.Convert.ToString(ecOptions, 16));
}
// Read wavelet filter for tile or image
hfilters = new SynWTFilter[1];
vfilters = new SynWTFilter[1];
hfilters[0] = readFilter(ehs, ms.spcod_t);
vfilters[0] = hfilters[0];
// Fill the filter spec
// If this is the main header, set the default value, if it is the
// tile header, set default for this tile
SynWTFilter[][] hvfilters = new SynWTFilter[2][];
hvfilters[0] = hfilters;
hvfilters[1] = vfilters;
// Get precinct partition sizes
System.Collections.ArrayList[] v = new System.Collections.ArrayList[2];
v[0] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
v[1] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
int val = CSJ2K.j2k.codestream.Markers.PRECINCT_PARTITION_DEF_SIZE;
if (!precinctPartitionIsUsed)
{
System.Int32 w, h;
w = (System.Int32) (1 << (val & 0x000F));
v[0].Add(w);
h = (System.Int32) (1 << (((val & 0x00F0) >> 4)));
v[1].Add(h);
}
else
{
ms.spcod_ps = new int[mrl + 1];
for (int rl = mrl; rl >= 0; rl--)
{
System.Int32 w, h;
val = ms.spcod_ps[mrl - rl] = ehs.ReadByte();
w = (System.Int32) (1 << (val & 0x000F));
v[0].Insert(0, w);
h = (System.Int32) (1 << (((val & 0x00F0) >> 4)));
v[1].Insert(0, h);
}
}
if (mainh)
{
decSpec.pss.setDefault(v);
}
else
{
decSpec.pss.setTileDef(tileIdx, v);
}
precinctPartitionIsUsed = true;
// Check marker length
checkMarkerLength(ehs, "COD marker");
// Store specifications in decSpec
if (mainh)
{
decSpec.wfs.setDefault(hvfilters);
decSpec.dls.setDefault((System.Object) mrl);
decSpec.ecopts.setDefault((System.Object) ecOptions);
decSpec.cts.setDefault((System.Object) ms.sgcod_mct);
decSpec.nls.setDefault((System.Object) ms.sgcod_nl);
decSpec.pos.setDefault((System.Object) ms.sgcod_po);
}
else
{
decSpec.wfs.setTileDef(tileIdx, hvfilters);
decSpec.dls.setTileDef(tileIdx, (System.Object) mrl);
decSpec.ecopts.setTileDef(tileIdx, (System.Object) ecOptions);
decSpec.cts.setTileDef(tileIdx, (System.Object) ms.sgcod_mct);
decSpec.nls.setTileDef(tileIdx, (System.Object) ms.sgcod_nl);
decSpec.pos.setTileDef(tileIdx, (System.Object) ms.sgcod_po);
}
}
