public async Task EncodeTileImage()
{
await using TiffFileWriter writer = await TiffFileWriter.OpenAsync(new EmptyContentReaderWriter (), false, false);
using (TiffImageFileDirectoryWriter ifdWriter = writer.CreateImageFileDirectory())
{
await _tileEncoder.EncodeAsync(ifdWriter, _image);
writer.SetFirstImageFileDirectoryOffset(await ifdWriter.FlushAsync());
}
await writer.FlushAsync();
}
public static async Task <int> Merge(FileInfo[] source, FileInfo output, CancellationToken cancellationToken)
{
if (source is null || source.Length == 0)
{
Console.WriteLine("Input TIFF file are not specified.");
return(1);
}
if (output is null)
{
Console.WriteLine("Output TIFF file is not specified");
return(1);
}
await using TiffFileWriter writer = await TiffFileWriter.OpenAsync(output.FullName);
TiffStreamOffset fistIfdOffset = default;
TiffStreamOffset previousIfdOffset = default;
foreach (FileInfo sourceFile in source)
{
await using TiffFileReader reader = await TiffFileReader.OpenAsync(sourceFile.FullName);
await using TiffFileContentReader contentReader = await reader.CreateContentReaderAsync();
await using TiffFieldReader fieldReader = await reader.CreateFieldReaderAsync(cancellationToken);
TiffStreamOffset inputIfdOffset = reader.FirstImageFileDirectoryOffset;
while (!inputIfdOffset.IsZero)
{
TiffImageFileDirectory ifd = await reader.ReadImageFileDirectoryAsync(inputIfdOffset, cancellationToken);
using (TiffImageFileDirectoryWriter ifdWriter = writer.CreateImageFileDirectory())
{
await CopyIfdAsync(contentReader, fieldReader, ifd, ifdWriter, cancellationToken);
previousIfdOffset = await ifdWriter.FlushAsync(previousIfdOffset);
if (fistIfdOffset.IsZero)
{
fistIfdOffset = previousIfdOffset;
}
}
inputIfdOffset = ifd.NextOffset;
}
}
writer.SetFirstImageFileDirectoryOffset(fistIfdOffset);
await writer.FlushAsync();
return(0);
}
private static async Task GenerateImageAsync(Stream stream, TiffImageEncoderBuilder builder, TiffPixelBuffer <TiffGray8> image)
{
using (TiffFileWriter writer = await TiffFileWriter.OpenAsync(stream, true))
{
TiffStreamOffset ifdOffset;
using (TiffImageFileDirectoryWriter ifdWriter = writer.CreateImageFileDirectory())
{
TiffImageEncoder <TiffGray8> encoder = builder.Build <TiffGray8>();
await encoder.EncodeAsync(ifdWriter, image);
ifdOffset = await ifdWriter.FlushAsync();
}
writer.SetFirstImageFileDirectoryOffset(ifdOffset);
await writer.FlushAsync();
}
}
private static async Task <Stream> GenerateTiffAsync(bool bigTiff, Func <TiffImageFileDirectoryWriter, Task> ifdAction)
{
var ms = new MemoryStream();
using (TiffFileWriter writer = await TiffFileWriter.OpenAsync(ms, leaveOpen: true, useBigTiff: bigTiff))
{
using (TiffImageFileDirectoryWriter ifd = writer.CreateImageFileDirectory())
{
await ifdAction(ifd);
writer.SetFirstImageFileDirectoryOffset(await ifd.FlushAsync());
}
await writer.FlushAsync();
}
ms.Seek(0, SeekOrigin.Begin);
return(ms);
}
public static async Task <int> Wrap(FileInfo source, FileInfo output, CancellationToken cancellationToken)
{
if (source is null || !source.Exists)
{
Console.WriteLine(source is null ? "Input JPEG image is not specified." : "File not found: " + source.FullName);
return(1);
}
if (output is null)
{
Console.WriteLine("Output TIFF file is not specified.");
return(1);
}
byte[] jpegFile = await File.ReadAllBytesAsync(source.FullName, cancellationToken);
var decoder = new JpegDecoder();
decoder.SetInput(jpegFile);
decoder.Identify(loadQuantizationTables: false);
ushort[] bitsPerSample = new ushort[decoder.NumberOfComponents];
ushort bits = (ushort)decoder.Precision;
for (int i = 0; i < bitsPerSample.Length; i++)
{
bitsPerSample[i] = bits;
}
TiffPhotometricInterpretation photometricInterpretation =
bitsPerSample.Length == 1 ? TiffPhotometricInterpretation.BlackIsZero :
bitsPerSample.Length == 3 ? TiffPhotometricInterpretation.YCbCr :
throw new InvalidDataException("Photometric interpretation not supported.");
using (TiffFileWriter writer = await TiffFileWriter.OpenAsync(output.FullName, useBigTiff: false))
{
TiffStreamOffset imageOffset = await writer.WriteAlignedBytesAsync(jpegFile);
TiffStreamOffset ifdOffset;
using (TiffImageFileDirectoryWriter ifdWriter = writer.CreateImageFileDirectory())
{
await ifdWriter.WriteTagAsync(TiffTag.ImageWidth, TiffValueCollection.Single((ushort)decoder.Width));
await ifdWriter.WriteTagAsync(TiffTag.ImageLength, TiffValueCollection.Single((ushort)decoder.Height));
await ifdWriter.WriteTagAsync(TiffTag.BitsPerSample, TiffValueCollection.UnsafeWrap(bitsPerSample));
await ifdWriter.WriteTagAsync(TiffTag.Compression, TiffValueCollection.Single((ushort)TiffCompression.Jpeg));
await ifdWriter.WriteTagAsync(TiffTag.PhotometricInterpretation, TiffValueCollection.Single((ushort)photometricInterpretation));
await ifdWriter.WriteTagAsync(TiffTag.SamplesPerPixel, TiffValueCollection.Single((ushort)bitsPerSample.Length));
await ifdWriter.WriteTagAsync(TiffTag.PlanarConfiguration, TiffValueCollection.Single((ushort)TiffPlanarConfiguration.Chunky));
await ifdWriter.WriteTagAsync(TiffTag.RowsPerStrip, TiffValueCollection.Single((ushort)decoder.Height));
await ifdWriter.WriteTagAsync(TiffTag.StripOffsets, TiffValueCollection.Single((uint)imageOffset.Offset));
await ifdWriter.WriteTagAsync(TiffTag.StripByteCounts, TiffValueCollection.Single((uint)jpegFile.Length));
if (photometricInterpretation == TiffPhotometricInterpretation.YCbCr)
{
int maxHorizontalSampling = decoder.GetMaximumHorizontalSampling();
int maxVerticalSampling = decoder.GetMaximumVerticalSampling();
int yHorizontalSubSampling = maxHorizontalSampling / decoder.GetHorizontalSampling(0);
int yVerticalSubSampling = maxVerticalSampling / decoder.GetVerticalSampling(0);
int cbHorizontalSubSampling = maxHorizontalSampling / decoder.GetHorizontalSampling(1) / yHorizontalSubSampling;
int cbVerticalSubSampling = maxVerticalSampling / decoder.GetVerticalSampling(1) / yVerticalSubSampling;
int crHorizontalSubSampling = maxHorizontalSampling / decoder.GetHorizontalSampling(2) / yHorizontalSubSampling;
int crVerticalSubSampling = maxVerticalSampling / decoder.GetVerticalSampling(2) / yVerticalSubSampling;
if (cbHorizontalSubSampling != crHorizontalSubSampling || cbVerticalSubSampling != crVerticalSubSampling)
{
throw new InvalidDataException("Unsupported JPEG image.");
}
await ifdWriter.WriteTagAsync(TiffTag.YCbCrSubSampling, TiffValueCollection.UnsafeWrap(new ushort[] { (ushort)cbHorizontalSubSampling, (ushort)cbVerticalSubSampling }));
}
// Write other properties here (eg, XResolution, YResolution)
await ifdWriter.WriteTagAsync(TiffTag.XResolution, TiffValueCollection.Single(new TiffRational(96, 1)));
await ifdWriter.WriteTagAsync(TiffTag.YResolution, TiffValueCollection.Single(new TiffRational(96, 1)));
await ifdWriter.WriteTagAsync(TiffTag.ResolutionUnit, TiffValueCollection.Single((ushort)TiffResolutionUnit.Inch));
ifdOffset = await ifdWriter.FlushAsync();
}
writer.SetFirstImageFileDirectoryOffset(ifdOffset);
await writer.FlushAsync();
}
return(0);
}
public async Task RipBaseLayerAsync(IRipperInitialLayerAcquisitionReporter reporter, CancellationToken cancellationToken)
{
int outputTileSize = _options.OutputTileSize;
int tiffRowCount = (ImageHeight + outputTileSize - 1) / outputTileSize;
int tiffColCount = (ImageWidth + outputTileSize - 1) / outputTileSize;
int index = 0;
ulong[] offsets = new ulong[tiffRowCount * tiffColCount];
ulong[] byteCounts = new ulong[tiffRowCount * tiffColCount];
ulong totalByteCount = 0;
reporter?.ReportStartInitialLayerAcquisition(offsets.Length);
using (var regionReader = new TileRegionReader(this))
using (Image <Rgb24> canvas = new Image <Rgb24>(_configuration, outputTileSize, outputTileSize))
{
for (int row = 0; row < tiffRowCount; row++)
{
int rowYOffset = row * outputTileSize;
for (int col = 0; col < tiffColCount; col++)
{
int colXOffset = col * outputTileSize;
MemoryMarshal.AsBytes(canvas.GetPixelSpan()).Clear();
await regionReader.FillRegionAsync(colXOffset, rowYOffset, canvas, cancellationToken).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
TiffStreamRegion region = await _encoder.EncodeAsync(_fileWriter, canvas).ConfigureAwait(false);
offsets[index] = (ulong)region.Offset.Offset;
byteCounts[index] = (uint)region.Length;
totalByteCount += (uint)region.Length;
index++;
reporter?.ReportInitialLayerAcquisitionProgress(index, offsets.Length);
}
}
}
cancellationToken.ThrowIfCancellationRequested();
TiffStreamOffset ifdOffset;
using (TiffImageFileDirectoryWriter ifdWriter = _fileWriter.CreateImageFileDirectory())
{
await ifdWriter.WriteTagAsync(TiffTag.PhotometricInterpretation, new TiffValueCollection <ushort>((ushort)TiffPhotometricInterpretation.YCbCr)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.Compression, new TiffValueCollection <ushort>((ushort)TiffCompression.Jpeg)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.SamplesPerPixel, new TiffValueCollection <ushort>((ushort)3)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.TileWidth, new TiffValueCollection <ushort>((ushort)outputTileSize)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.TileLength, new TiffValueCollection <ushort>((ushort)outputTileSize)).ConfigureAwait(false);
//ifdWriter.AddTag(TiffTag.ResolutionUnit, (ushort)TiffResolutionUnit.Inch);
//await ifdWriter.WriteTagAsync(TiffTag.XResolution, new TiffValueCollection<TiffRational>(new TiffRational(72, 1)));
//await ifdWriter.WriteTagAsync(TiffTag.YResolution, new TiffValueCollection<TiffRational>(new TiffRational(72, 1)));
await ifdWriter.WriteTagAsync(TiffTag.SampleFormat, new TiffValueCollection <ushort>(new ushort[] { 1, 1, 1 })).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.BitsPerSample, new TiffValueCollection <ushort>(new ushort[] { 8, 8, 8 })).ConfigureAwait(false);
if (UseBigTiff)
{
await ifdWriter.WriteTagAsync(TiffTag.ImageWidth, new TiffValueCollection <ulong>((ulong)_manifest.Width)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.ImageLength, new TiffValueCollection <ulong>((ulong)_manifest.Height)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.TileOffsets, new TiffValueCollection <ulong>(offsets)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.TileByteCounts, new TiffValueCollection <ulong>(byteCounts)).ConfigureAwait(false);
}
else
{
await ifdWriter.WriteTagAsync(TiffTag.ImageWidth, new TiffValueCollection <uint>((uint)_manifest.Width)).ConfigureAwait(false);
await ifdWriter.WriteTagAsync(TiffTag.ImageLength, new TiffValueCollection <uint>((uint)_manifest.Height)).ConfigureAwait(false);
uint[] tempArr = new uint[offsets.Length];
for (int i = 0; i < tempArr.Length; i++)
{
tempArr[i] = (uint)offsets[i];
}
await ifdWriter.WriteTagAsync(TiffTag.TileOffsets, new TiffValueCollection <uint>(tempArr)).ConfigureAwait(false);
for (int i = 0; i < tempArr.Length; i++)
{
tempArr[i] = (uint)byteCounts[i];
}
await ifdWriter.WriteTagAsync(TiffTag.TileByteCounts, new TiffValueCollection <uint>(tempArr)).ConfigureAwait(false);
}
string software = Software;
if (!string.IsNullOrEmpty(software))
{
await ifdWriter.WriteTagAsync(TiffTag.Software, new TiffValueCollection <string>(software));
}
ifdOffset = await ifdWriter.FlushAsync().ConfigureAwait(false);
}
_fileWriter.SetFirstImageFileDirectoryOffset(ifdOffset);
await _fileWriter.FlushAsync().ConfigureAwait(false);
reporter?.ReportCompleteInitialLayerAcquisition(offsets.Length, (long)totalByteCount);
}