/// <exception cref="System.IO.IOException"/>
/// <exception cref="TiffProcessingException"/>
public static DirectoryList ReadMetadata(Stream stream)
{
// TIFF processing requires random access, as directories can be scattered throughout the byte sequence.
// Stream does not support seeking backwards, so we wrap it with IndexedCapturingReader, which
// buffers data from the stream as we seek forward.
var directories = new List <Directory>();
var handler = new ExifTiffHandler(directories);
TiffReader.ProcessTiff(new IndexedCapturingReader(stream), handler);
return(directories);
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="TiffProcessingException"/>
public static DirectoryList ReadMetadata(string filePath)
{
var directories = new List <Directory>();
using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.RandomAccess))
{
var handler = new ExifTiffHandler(directories);
TiffReader.ProcessTiff(new IndexedSeekingReader(stream), handler);
}
directories.Add(new FileMetadataReader().Read(filePath));
return(directories);
}
