public void CompareMainHeaderMarkers()
{
// Test to see if the SIZ, COD and QCD markers
// for the source image and the destination image
// are equal.
_mem.Seek(0, SeekOrigin.Begin);
var csout = Jp2File.Open(_mem).OpenCodestream();
_fs.Seek(_csin.Position, SeekOrigin.Begin);
_mem.Seek(csout.Position, SeekOrigin.Begin);
var segmentsIn = ReadSegments(_fs);
var segmentsOut = ReadSegments(_mem);
Assert.IsTrue(segmentsIn.ContainsKey((ushort)MarkerType.SIZ));
Assert.IsTrue(segmentsOut.ContainsKey((ushort)MarkerType.SIZ));
Assert.IsTrue(segmentsIn.ContainsKey((ushort)MarkerType.COD));
Assert.IsTrue(segmentsOut.ContainsKey((ushort)MarkerType.COD));
Assert.IsTrue(segmentsIn.ContainsKey((ushort)MarkerType.QCD));
Assert.IsTrue(segmentsOut.ContainsKey((ushort)MarkerType.QCD));
byte[] sizin = segmentsIn[(ushort)MarkerType.SIZ];
byte[] sizout = segmentsOut[(ushort)MarkerType.SIZ];
byte[] codin = segmentsIn[(ushort)MarkerType.COD];
byte[] codout = segmentsOut[(ushort)MarkerType.COD];
byte[] qcdin = segmentsIn[(ushort)MarkerType.QCD];
byte[] qcdout = segmentsOut[(ushort)MarkerType.QCD];
Assert.IsTrue(sizin.SequenceEqual(sizout));
Assert.IsTrue(codin.SequenceEqual(codout));
Assert.IsTrue(qcdin.SequenceEqual(qcdout));
}
private void Run()
{
ThrowIfHasInnerTiles(_firstCodestream);
ThrowIfTooManyTiles();
SizMarker siz = GetDestSiz();
// Lets generate a tile-part for each tile-resolution in the source images
int tiles = _imageCount.Width * _imageCount.Height;
int expectedTileParts = tiles * (_firstCodestream.DecompositionLevels + 1);
CodMarker cod = _firstCodestream.Markers[MarkerType.COD] as CodMarker;
QcdMarker qcd = _firstCodestream.Markers[MarkerType.QCD] as QcdMarker;
WarnIfClipped(_firstCodestream, cod);
ComMarker com = new ComMarker("https://github.com/plroit/Skyreach");
var markers = new List <MarkerSegment>()
{
siz, cod, qcd, com
};
Jp2File dst = Jp2File.Create(
markers,
expectedTileParts,
false,
_dest);
for (ushort tIdx = 0; tIdx < tiles; tIdx++)
{
CopyTile(tIdx, dst);
}
dst.Flush();
}
public void CopyTilePartTest()
{
_mem.Seek(0, SeekOrigin.Begin);
var tpout = Jp2File
.Open(_mem)
.OpenCodestream()
.OpenTilePart(0, 0);
var tpin = _jp2.OpenCodestream().OpenTilePart(0, 0);
Assert.AreEqual(tpin.FirstChildOffset, tpout.FirstChildOffset);
Assert.AreEqual(tpin.TotalPacketLength, tpout.TotalPacketLength);
// lets check if SOT and PLT markers are the same
_mem.Seek(tpout.Position, SeekOrigin.Begin);
_fs.Seek(tpin.Position, SeekOrigin.Begin);
int totalCount = (int)tpin.FirstChildOffset;
// compare SOT and PLT markers
CompareStreams(totalCount);
// compare packet content
_mem.Seek(tpout.Position + tpout.FirstChildOffset,
SeekOrigin.Begin);
_fs.Seek(tpin.Position + tpin.FirstChildOffset,
SeekOrigin.Begin);
CompareStreams((int)tpin.TotalPacketLength);
}
public void Initialize()
{
string testFile = "test_LRtCP_L2R3T512.jp2";
_lrcpStream = File.OpenRead(testFile);
_lrcpCodestream = Jp2File.Open(_lrcpStream).OpenCodestream();
_queryContext = new QueryContext(_lrcpCodestream, _tileIdx);
}
public void Initialize()
{
_mem = new MemoryStream();
_fs = File.OpenRead("test.jp2");
_jp2 = Jp2File.Open(_fs);
CopyImage();
}
public void Initialize()
{
string testFile = "test_RtPCL_L4R5P128T200.jp2";
_rpclStream = File.OpenRead(testFile);
_rpclCodestream = Jp2File.Open(_rpclStream).OpenCodestream();
_queryContext = new QueryContext(_rpclCodestream, _tileIdx);
}
private Jp2File OpenJp2(int idx)
{
if (_jp2s[idx] == null)
{
_jp2s[idx] = Jp2File.Open(OpenStream(idx));
}
return(_jp2s[idx]);
}
private void CopyTile(ushort tIdx, Jp2File dstJp2)
{
JP2Codestream src = OpenJp2(tIdx).OpenCodestream();
JP2Codestream dst = dstJp2.OpenCodestream();
ThrowIfDifferentInputs(_firstCodestream, src);
for (int r = 0; r <= src.DecompositionLevels; r++)
{
CopyTileResLevel(dst, src, tIdx, r);
}
}
private static Jp2File Open(
int idx,
string[] paths,
Jp2File[] jp2Files)
{
if (jp2Files[idx] == null)
{
Stream stream = new FileStream(
paths[idx],
FileMode.Open,
FileAccess.Read,
FileShare.Read,
1 << 14);
jp2Files[idx] = Jp2File.Open(stream);
}
return(jp2Files[idx]);
}
public void ReadBackPacketLengths()
{
// Test if the packet lengths we have
// copied from the source tile-part, and written
// into the destination tile-part, can be now
// read back from the destination stream.
// The source and destination packet lengths
// should be equal
_mem.Seek(0, SeekOrigin.Begin);
var tpout = Jp2File.Open(_mem)
.OpenCodestream()
.OpenTilePart(0, 0);
var lengthsOut = tpout.GetPacketLengths(
0, tpout.Packets);
var tpin = _csin.OpenTilePart(0, 0);
var lengthsIn = tpin.GetPacketLengths(
0, tpin.Packets);
bool seqEq = lengthsOut.SequenceEqual(lengthsIn);
Assert.IsTrue(seqEq);
}
public void OpenImage()
{
Jp2File jp2 = Jp2File.Open(_fs);
Assert.IsNotNull(jp2);
JP2Codestream cs = jp2.OpenCodestream();
Assert.IsNotNull(cs);
Assert.IsNull(cs.Parent);
Assert.AreEqual <Size>(cs.ImageSize, Image.Default.ImageSize);
Assert.AreEqual <Size>(cs.TileSize, Image.Default.ImageSize);
Assert.AreEqual(cs.TileCount, new Size(1, 1));
Assert.AreEqual(cs.Components, Image.Default.Components);
Assert.AreEqual(cs.Progression, Image.Default.Progression);
Assert.AreEqual(cs.ImageOffset, Point.Empty);
Assert.AreEqual(cs.TileOffset, Point.Empty);
Assert.AreEqual(cs.DecompositionLevels, Image.Default.Decompositions);
Assert.AreEqual(cs.QualityLayers, 1);
int tileparts = cs.OpenChildren().Count();
Assert.AreEqual(1, tileparts);
_fs.Seek(0, SeekOrigin.Begin);
long socOffset = Find(_fs, (ushort)MarkerType.SOC);
long sizOffset = Find(_fs, (ushort)MarkerType.SIZ);
long sotOffset = Find(_fs, (ushort)MarkerType.SOT);
long sodOffset = Find(_fs, (ushort)MarkerType.SOD);
long eocOffset = Find(_fs, (ushort)MarkerType.EOC);
Assert.AreEqual(socOffset, cs.Position);
Assert.AreEqual(sizOffset, cs.Position + 2);
Assert.AreEqual(sotOffset, cs.Position + cs.FirstChildOffset);
long sodOffsetFromCs = cs.Position + cs.FirstChildOffset;
sodOffsetFromCs += cs.OpenTilePart(0, 0).FirstChildOffset - 2;
Assert.AreEqual(sodOffset, sodOffsetFromCs);
Assert.AreEqual(eocOffset, cs.Position + cs.Length - 2);
}
public void Initialize()
{
_fs = File.OpenRead("test.jp2");
_mem = new MemoryStream();
_csin = Jp2File.Open(_fs).OpenCodestream();
var siz = _csin.Markers[MarkerType.SIZ] as SizMarker;
var cod = _csin.Markers[MarkerType.COD] as CodMarker;
var qcd = _csin.Markers[MarkerType.QCD] as QcdMarker;
var tpin = _csin.OpenTilePart(0, 0);
var csout = new JP2Codestream(new List <MarkerSegment>()
{
siz, cod, qcd
}, 1);
csout.Bind(_mem, 0);
var tpout = csout.CreateTilePart(0, true);
var lengths = tpin.GetPacketLengths(0, tpin.Packets);
tpout.AddPacketLengths(lengths);
tpout.Flush();
csout.Flush();
_mem.Seek(0, SeekOrigin.Begin);
}
public void Initialize()
{
_fs = File.OpenRead("test_LRtCP_L2R3T512.jp2");
_jp2 = Jp2File.Open(_fs);
_cs = _jp2.OpenCodestream();
}
