/// <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);
}
}
}
/// <summary> Constructs a new 'AnWTFilterSpec' for the specified number of
/// components and tiles.
///
/// </summary>
/// <param name="nt">The number of tiles
///
/// </param>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="type">the type of the specification module i.e. tile specific,
/// component specific or both.
///
/// </param>
/// <param name="qts">Quantization specifications
///
/// </param>
/// <param name="pl">The ParameterList
///
/// </param>
public AnWTFilterSpec(int nt, int nc, byte type, QuantTypeSpec qts, ParameterList pl):base(nt, nc, type)
{
// Check parameters
pl.checkList(AnWTFilter.OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(AnWTFilter.ParameterInfo));
System.String param = pl.getParameter("Ffilters");
bool isFilterSpecified = true;
// No parameter specified
if (param == null)
{
isFilterSpecified = false;
// If lossless compression, uses the reversible filters in each
// tile-components
if (pl.getBooleanParameter("lossless"))
{
setDefault(parseFilters(REV_FILTER_STR));
return ;
}
// If no filter is specified through the command-line, use
// REV_FILTER_STR or NON_REV_FILTER_STR according to the
// quantization type
for (int t = nt - 1; t >= 0; t--)
{
for (int c = nc - 1; c >= 0; c--)
{
switch (qts.getSpecValType(t, c))
{
case SPEC_DEF:
if (getDefault() == null)
{
if (pl.getBooleanParameter("lossless"))
setDefault(parseFilters(REV_FILTER_STR));
if (((System.String) qts.getDefault()).Equals("reversible"))
{
setDefault(parseFilters(REV_FILTER_STR));
}
else
{
setDefault(parseFilters(NON_REV_FILTER_STR));
}
}
specValType[t][c] = SPEC_DEF;
break;
case SPEC_COMP_DEF:
if (!isCompSpecified(c))
{
if (((System.String) qts.getCompDef(c)).Equals("reversible"))
{
setCompDef(c, parseFilters(REV_FILTER_STR));
}
else
{
setCompDef(c, parseFilters(NON_REV_FILTER_STR));
}
}
specValType[t][c] = SPEC_COMP_DEF;
break;
case SPEC_TILE_DEF:
if (!isTileSpecified(t))
{
if (((System.String) qts.getTileDef(t)).Equals("reversible"))
{
setTileDef(t, parseFilters(REV_FILTER_STR));
}
else
{
setTileDef(t, parseFilters(NON_REV_FILTER_STR));
}
}
specValType[t][c] = SPEC_TILE_DEF;
break;
case SPEC_TILE_COMP:
if (!isTileCompSpecified(t, c))
{
if (((System.String) qts.getTileCompVal(t, c)).Equals("reversible"))
{
setTileCompVal(t, c, parseFilters(REV_FILTER_STR));
}
else
{
setTileCompVal(t, c, parseFilters(NON_REV_FILTER_STR));
}
}
specValType[t][c] = SPEC_TILE_COMP;
break;
default:
throw new System.ArgumentException("Unsupported " + "specification " + "type");
}
}
}
return ;
}
// Parse argument
SupportClass.Tokenizer stk = new SupportClass.Tokenizer(param);
System.String word; // current word
byte curSpecType = SPEC_DEF; // Specification type of the
// current parameter
bool[] tileSpec = null; // Tiles concerned by the specification
bool[] compSpec = null; // Components concerned by the specification
AnWTFilter[][] filter;
while (stk.HasMoreTokens())
{
word = stk.NextToken();
switch (word[0])
{
case 't':
// Tiles specification
case 'T': // Tiles specification
tileSpec = parseIdx(word, nTiles);
if (curSpecType == SPEC_COMP_DEF)
curSpecType = SPEC_TILE_COMP;
else
curSpecType = SPEC_TILE_DEF;
break;
case 'c':
// Components specification
case 'C': // Components specification
compSpec = parseIdx(word, nComp);
if (curSpecType == SPEC_TILE_DEF)
curSpecType = SPEC_TILE_COMP;
else
curSpecType = SPEC_COMP_DEF;
break;
case 'w':
// WT filters specification
case 'W': // WT filters specification
if (pl.getBooleanParameter("lossless") && word.ToUpper().Equals("w9x7".ToUpper()))
{
throw new System.ArgumentException("Cannot use non " + "reversible " + "wavelet transform with" + " '-lossless' option");
}
filter = parseFilters(word);
if (curSpecType == SPEC_DEF)
{
setDefault(filter);
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
if (tileSpec[i])
{
setTileDef(i, filter);
}
}
else if (curSpecType == SPEC_COMP_DEF)
{
for (int i = compSpec.Length - 1; i >= 0; i--)
if (compSpec[i])
{
setCompDef(i, filter);
}
}
else
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
{
for (int j = compSpec.Length - 1; j >= 0; j--)
{
if (tileSpec[i] && compSpec[j])
{
setTileCompVal(i, j, filter);
}
}
}
}
// Re-initialize
curSpecType = SPEC_DEF;
tileSpec = null;
compSpec = null;
break;
default:
throw new System.ArgumentException("Bad construction for " + "parameter: " + word);
}
}
// Check that default value has been specified
if (getDefault() == null)
{
int ndefspec = 0;
for (int t = nt - 1; t >= 0; t--)
{
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[t][c] == SPEC_DEF)
{
ndefspec++;
}
}
}
// If some tile-component have received no specification, it takes
// the default value defined in ParameterList
if (ndefspec != 0)
{
if (((System.String) qts.getDefault()).Equals("reversible"))
setDefault(parseFilters(REV_FILTER_STR));
else
setDefault(parseFilters(NON_REV_FILTER_STR));
}
else
{
// All tile-component have been specified, takes the first
// tile-component value as default.
setDefault(getTileCompVal(0, 0));
switch (specValType[0][0])
{
case SPEC_TILE_DEF:
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[0][c] == SPEC_TILE_DEF)
specValType[0][c] = SPEC_DEF;
}
tileDef[0] = null;
break;
case SPEC_COMP_DEF:
for (int t = nt - 1; t >= 0; t--)
{
if (specValType[t][0] == SPEC_COMP_DEF)
specValType[t][0] = SPEC_DEF;
}
compDef[0] = null;
break;
case SPEC_TILE_COMP:
specValType[0][0] = SPEC_DEF;
tileCompVal["t0c0"] = null;
break;
}
}
}
// Check consistency between filter and quantization type
// specification
for (int t = nt - 1; t >= 0; t--)
{
for (int c = nc - 1; c >= 0; c--)
{
// Reversible quantization
if (((System.String) qts.getTileCompVal(t, c)).Equals("reversible"))
{
// If filter is reversible, it is OK
if (isReversible(t, c))
continue;
// If no filter has been defined, use reversible filter
if (!isFilterSpecified)
{
setTileCompVal(t, c, parseFilters(REV_FILTER_STR));
}
else
{
// Non reversible filter specified -> Error
throw new System.ArgumentException("Filter of " + "tile-component" + " (" + t + "," + c + ") does" + " not allow " + "reversible " + "quantization. " + "Specify '-Qtype " + "expounded' or " + "'-Qtype derived'" + "in " + "the command line.");
}
}
else
{
// No reversible quantization
// No reversible filter -> OK
if (!isReversible(t, c))
continue;
// If no filter has been specified, use non-reversible
// filter
if (!isFilterSpecified)
{
setTileCompVal(t, c, parseFilters(NON_REV_FILTER_STR));
}
else
{
// Reversible filter specified -> Error
throw new System.ArgumentException("Filter of " + "tile-component" + " (" + t + "," + c + ") does" + " not allow " + "non-reversible " + "quantization. " + "Specify '-Qtype " + "reversible' in " + "the command line");
}
}
}
}
}
/// <summary> Constructs a new 'QuantTypeSpec' for the specified number of components
/// and tiles and the arguments of "-Qtype" option. This constructor is
/// called by the encoder.
///
/// </summary>
/// <param name="nt">The number of tiles
///
/// </param>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="type">the type of the specification module i.e. tile specific,
/// component specific or both.
///
/// </param>
/// <param name="pl">The ParameterList
///
/// </param>
public QuantTypeSpec(int nt, int nc, byte type, ParameterList pl):base(nt, nc, type)
{
System.String param = pl.getParameter("Qtype");
if (param == null)
{
if (pl.getBooleanParameter("lossless"))
{
setDefault("reversible");
}
else
{
setDefault("expounded");
}
return ;
}
// Parse argument
SupportClass.Tokenizer stk = new SupportClass.Tokenizer(param);
System.String word; // current word
byte curSpecValType = SPEC_DEF; // Specification type of the
// current parameter
bool[] tileSpec = null; // Tiles concerned by the specification
bool[] compSpec = null; // Components concerned by the specification
while (stk.HasMoreTokens())
{
word = stk.NextToken().ToLower();
switch (word[0])
{
case 't': // Tiles specification
tileSpec = parseIdx(word, nTiles);
if (curSpecValType == SPEC_COMP_DEF)
{
curSpecValType = SPEC_TILE_COMP;
}
else
{
curSpecValType = SPEC_TILE_DEF;
}
break;
case 'c': // Components specification
compSpec = parseIdx(word, nComp);
if (curSpecValType == SPEC_TILE_DEF)
{
curSpecValType = SPEC_TILE_COMP;
}
else
{
curSpecValType = SPEC_COMP_DEF;
}
break;
case 'r':
// reversible specification
case 'd':
// derived quantization step size specification
case 'e': // expounded quantization step size specification
if (!word.ToUpper().Equals("reversible".ToUpper()) && !word.ToUpper().Equals("derived".ToUpper()) && !word.ToUpper().Equals("expounded".ToUpper()))
{
throw new System.ArgumentException("Unknown parameter " + "for " + "'-Qtype' option: " + word);
}
if (pl.getBooleanParameter("lossless") && (word.ToUpper().Equals("derived".ToUpper()) || word.ToUpper().Equals("expounded".ToUpper())))
{
throw new System.ArgumentException("Cannot use non " + "reversible " + "quantization with " + "'-lossless' option");
}
if (curSpecValType == SPEC_DEF)
{
// Default specification
setDefault(word);
}
else if (curSpecValType == SPEC_TILE_DEF)
{
// Tile default specification
for (int i = tileSpec.Length - 1; i >= 0; i--)
{
if (tileSpec[i])
{
setTileDef(i, word);
}
}
}
else if (curSpecValType == SPEC_COMP_DEF)
{
// Component default specification
for (int i = compSpec.Length - 1; i >= 0; i--)
if (compSpec[i])
{
setCompDef(i, word);
}
}
else
{
// Tile-component specification
for (int i = tileSpec.Length - 1; i >= 0; i--)
{
for (int j = compSpec.Length - 1; j >= 0; j--)
{
if (tileSpec[i] && compSpec[j])
{
setTileCompVal(i, j, word);
}
}
}
}
// Re-initialize
curSpecValType = SPEC_DEF;
tileSpec = null;
compSpec = null;
break;
default:
throw new System.ArgumentException("Unknown parameter for " + "'-Qtype' option: " + word);
}
}
// Check that default value has been specified
if (getDefault() == null)
{
int ndefspec = 0;
for (int t = nt - 1; t >= 0; t--)
{
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[t][c] == SPEC_DEF)
{
ndefspec++;
}
}
}
// If some tile-component have received no specification, the
// quantization type is 'reversible' (if '-lossless' is specified)
// or 'expounded' (if not).
if (ndefspec != 0)
{
if (pl.getBooleanParameter("lossless"))
{
setDefault("reversible");
}
else
{
setDefault("expounded");
}
}
else
{
// All tile-component have been specified, takes arbitrarily
// the first tile-component value as default and modifies the
// specification type of all tile-component sharing this
// value.
setDefault(getTileCompVal(0, 0));
switch (specValType[0][0])
{
case SPEC_TILE_DEF:
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[0][c] == SPEC_TILE_DEF)
specValType[0][c] = SPEC_DEF;
}
tileDef[0] = null;
break;
case SPEC_COMP_DEF:
for (int t = nt - 1; t >= 0; t--)
{
if (specValType[t][0] == SPEC_COMP_DEF)
specValType[t][0] = SPEC_DEF;
}
compDef[0] = null;
break;
case SPEC_TILE_COMP:
specValType[0][0] = SPEC_DEF;
tileCompVal["t0c0"] = null;
break;
}
}
}
}
/// <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> Constructs a new 'ForwCompTransfSpec' for the specified number of
/// components and tiles, the wavelet filters type and the parameter of the
/// option 'Mct'. This constructor is called by the encoder. It also checks
/// that the arguments belong to the recognized arguments list.
///
/// <p>This constructor chose the component transformation type depending
/// on the wavelet filters : RCT with w5x3 filter and ICT with w9x7
/// filter. Note: All filters must use the same data type.</p>
///
/// </summary>
/// <param name="nt">The number of tiles
///
/// </param>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="type">the type of the specification module i.e. tile specific,
/// component specific or both.
///
/// </param>
/// <param name="wfs">The wavelet filter specifications
///
/// </param>
/// <param name="pl">The ParameterList
///
/// </param>
public ForwCompTransfSpec(int nt, int nc, byte type, AnWTFilterSpec wfs, ParameterList pl):base(nt, nc, type)
{
System.String param = pl.getParameter("Mct");
if (param == null)
{
// The option has not been specified
// If less than three component, do not use any component
// transformation
if (nc < 3)
{
setDefault("none");
return ;
}
// If the compression is lossless, uses RCT
else if (pl.getBooleanParameter("lossless"))
{
setDefault("rct");
return ;
}
else
{
AnWTFilter[][] anfilt;
int[] filtType = new int[nComp];
for (int c = 0; c < 3; c++)
{
anfilt = (AnWTFilter[][]) wfs.getCompDef(c);
filtType[c] = anfilt[0][0].FilterType;
}
// Check that the three first components use the same filters
bool reject = false;
for (int c = 1; c < 3; c++)
{
if (filtType[c] != filtType[0])
reject = true;
}
if (reject)
{
setDefault("none");
}
else
{
anfilt = (AnWTFilter[][]) wfs.getCompDef(0);
if (anfilt[0][0].FilterType == CSJ2K.j2k.wavelet.FilterTypes_Fields.W9X7)
{
setDefault("ict");
}
else
{
setDefault("rct");
}
}
}
// Each tile receives a component transform specification
// according the type of wavelet filters that are used by the
// three first components
for (int t = 0; t < nt; t++)
{
AnWTFilter[][] anfilt;
int[] filtType = new int[nComp];
for (int c = 0; c < 3; c++)
{
anfilt = (AnWTFilter[][]) wfs.getTileCompVal(t, c);
filtType[c] = anfilt[0][0].FilterType;
}
// Check that the three components use the same filters
bool reject = false;
for (int c = 1; c < nComp; c++)
{
if (filtType[c] != filtType[0])
reject = true;
}
if (reject)
{
setTileDef(t, "none");
}
else
{
anfilt = (AnWTFilter[][]) wfs.getTileCompVal(t, 0);
if (anfilt[0][0].FilterType == CSJ2K.j2k.wavelet.FilterTypes_Fields.W9X7)
{
setTileDef(t, "ict");
}
else
{
setTileDef(t, "rct");
}
}
}
return ;
}
// Parse argument
SupportClass.Tokenizer stk = new SupportClass.Tokenizer(param);
System.String word; // current word
byte curSpecType = SPEC_DEF; // Specification type of the
// current parameter
bool[] tileSpec = null; // Tiles concerned by the
// specification
//System.Boolean value_Renamed;
while (stk.HasMoreTokens())
{
word = stk.NextToken();
switch (word[0])
{
case 't': // Tiles specification
tileSpec = parseIdx(word, nTiles);
if (curSpecType == SPEC_COMP_DEF)
{
curSpecType = SPEC_TILE_COMP;
}
else
{
curSpecType = SPEC_TILE_DEF;
}
break;
case 'c': // Components specification
throw new System.ArgumentException("Component specific " + " parameters" + " not allowed with " + "'-Mct' option");
default:
if (word.Equals("off"))
{
if (curSpecType == SPEC_DEF)
{
setDefault("none");
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
if (tileSpec[i])
{
setTileDef(i, "none");
}
}
}
else if (word.Equals("on"))
{
if (nc < 3)
{
throw new System.ArgumentException("Cannot use component" + " transformation on a " + "image with less than " + "three components");
}
if (curSpecType == SPEC_DEF)
{
// Set arbitrarily the default
// value to RCT (later will be found the suitable
// component transform for each tile)
setDefault("rct");
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
{
if (tileSpec[i])
{
if (getFilterType(i, wfs) == CSJ2K.j2k.wavelet.FilterTypes_Fields.W5X3)
{
setTileDef(i, "rct");
}
else
{
setTileDef(i, "ict");
}
}
}
}
}
else
{
throw new System.ArgumentException("Default parameter of " + "option Mct not" + " recognized: " + param);
}
// Re-initialize
curSpecType = SPEC_DEF;
tileSpec = null;
break;
}
}
// Check that default value has been specified
if (getDefault() == null)
{
// If not, set arbitrarily the default value to 'none' but
// specifies explicitely a default value for each tile depending
// on the wavelet transform that is used
setDefault("none");
for (int t = 0; t < nt; t++)
{
if (isTileSpecified(t))
{
continue;
}
AnWTFilter[][] anfilt;
int[] filtType = new int[nComp];
for (int c = 0; c < 3; c++)
{
anfilt = (AnWTFilter[][]) wfs.getTileCompVal(t, c);
filtType[c] = anfilt[0][0].FilterType;
}
// Check that the three components use the same filters
bool reject = false;
for (int c = 1; c < nComp; c++)
{
if (filtType[c] != filtType[0])
reject = true;
}
if (reject)
{
setTileDef(t, "none");
}
else
{
anfilt = (AnWTFilter[][]) wfs.getTileCompVal(t, 0);
if (anfilt[0][0].FilterType == CSJ2K.j2k.wavelet.FilterTypes_Fields.W9X7)
{
setTileDef(t, "ict");
}
else
{
setTileDef(t, "rct");
}
}
}
}
// Check validity of component transformation of each tile compared to
// the filter used.
for (int t = nt - 1; t >= 0; t--)
{
if (((System.String) getTileDef(t)).Equals("none"))
{
// No comp. transf is used. No check is needed
continue;
}
else if (((System.String) getTileDef(t)).Equals("rct"))
{
// Tile is using Reversible component transform
int filterType = getFilterType(t, wfs);
switch (filterType)
{
case CSJ2K.j2k.wavelet.FilterTypes_Fields.W5X3: // OK
break;
case CSJ2K.j2k.wavelet.FilterTypes_Fields.W9X7: // Must use ICT
if (isTileSpecified(t))
{
// User has requested RCT -> Error
throw new System.ArgumentException("Cannot use RCT " + "with 9x7 filter " + "in tile " + t);
}
else
{
// Specify ICT for this tile
setTileDef(t, "ict");
}
break;
default:
throw new System.ArgumentException("Default filter is " + "not JPEG 2000 part" + " I compliant");
}
}
else
{
// ICT
int filterType = getFilterType(t, wfs);
switch (filterType)
{
case CSJ2K.j2k.wavelet.FilterTypes_Fields.W5X3: // Must use RCT
if (isTileSpecified(t))
{
// User has requested ICT -> Error
throw new System.ArgumentException("Cannot use ICT " + "with filter 5x3 " + "in tile " + t);
}
else
{
setTileDef(t, "rct");
}
break;
case CSJ2K.j2k.wavelet.FilterTypes_Fields.W9X7: // OK
break;
default:
throw new System.ArgumentException("Default filter is " + "not JPEG 2000 part" + " I compliant");
}
}
}
}
/// <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="decSpec">The decoder specifications
///
/// </param>
/// <param name="utdepth">The bit depth of the un-transformed components
///
/// </param>
/// <param name="pl">The command line optinons of the decoder
///
/// </param>
/// <seealso cref="BlkImgDataSrc">
///
/// </seealso>
public InvCompTransf(BlkImgDataSrc imgSrc, DecoderSpecs decSpec, int[] utdepth, ParameterList pl):base(imgSrc)
{
this.cts = decSpec.cts;
this.wfs = decSpec.wfs;
src = imgSrc;
this.utdepth = utdepth;
noCompTransf = !(pl.getBooleanParameter("comp_transf"));
}
/// <summary> Creates and returns the entropy decoder corresponding to the
/// information read from the codestream header and with the special
/// additional parameters from the parameter list.
///
/// </summary>
/// <param name="src">The bit stream reader agent where to get code-block data
/// from.
///
/// </param>
/// <param name="pl">The parameter list containing parameters applicable to the
/// entropy decoder (other parameters can also be present).
///
/// </param>
/// <returns> The entropy decoder
///
/// </returns>
public virtual EntropyDecoder createEntropyDecoder(CodedCBlkDataSrcDec src, ParameterList pl)
{
bool doer;
bool verber;
int mMax;
// Check parameters
pl.checkList(EntropyDecoder.OPT_PREFIX, ParameterList.toNameArray(EntropyDecoder.ParameterInfo));
// Get error detection option
doer = pl.getBooleanParameter("Cer");
// Get verbose error detection option
verber = pl.getBooleanParameter("Cverber");
// Get maximum number of bit planes from m quit condition
mMax = pl.getIntParameter("m_quit");
return new StdEntropyDecoder(src, decSpec, doer, verber, mMax);
}
/// <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);
}
