private static void ProcessReconyxMakernote([NotNull] ReconyxMakernoteDirectory directory, int makernoteOffset, [NotNull] IndexedReader reader)
{
directory.Set(ReconyxMakernoteDirectory.TagMakernoteVersion, reader.GetUInt16(makernoteOffset));
// revision and build are reversed from .NET ordering
ushort major = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagFirmwareVersion);
ushort minor = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagFirmwareVersion + 2);
ushort revision = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagFirmwareVersion + 4);
string buildYear = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagFirmwareVersion + 6).ToString("x4");
string buildDate = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagFirmwareVersion + 8).ToString("x4");
int build = int.Parse(buildYear + buildDate);
directory.Set(ReconyxMakernoteDirectory.TagFirmwareVersion, new Version(major, minor, revision, build));
directory.Set(ReconyxMakernoteDirectory.TagTriggerMode, new string((char)reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagTriggerMode), 1));
directory.Set(ReconyxMakernoteDirectory.TagSequence,
new[]
{
reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagSequence),
reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagSequence + 2)
});
uint eventNumberHigh = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagEventNumber);
uint eventNumberLow = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagEventNumber + 2);
directory.Set(ReconyxMakernoteDirectory.TagEventNumber, (eventNumberHigh << 16) + eventNumberLow);
ushort seconds = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal);
ushort minutes = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal + 2);
ushort hour = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal + 4);
ushort month = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal + 6);
ushort day = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal + 8);
ushort year = reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagDateTimeOriginal + 10);
directory.Set(ReconyxMakernoteDirectory.TagDateTimeOriginal, new DateTime(year, month, day, hour, minutes, seconds));
directory.Set(ReconyxMakernoteDirectory.TagMoonPhase, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagMoonPhase));
directory.Set(ReconyxMakernoteDirectory.TagAmbientTemperatureFarenheit, reader.GetInt16(makernoteOffset + ReconyxMakernoteDirectory.TagAmbientTemperatureFarenheit));
directory.Set(ReconyxMakernoteDirectory.TagAmbientTemperature, reader.GetInt16(makernoteOffset + ReconyxMakernoteDirectory.TagAmbientTemperature));
directory.Set(ReconyxMakernoteDirectory.TagSerialNumber, reader.GetString(makernoteOffset + ReconyxMakernoteDirectory.TagSerialNumber, 28, Encoding.Unicode));
// two unread bytes: the serial number's terminating null
directory.Set(ReconyxMakernoteDirectory.TagContrast, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagContrast));
directory.Set(ReconyxMakernoteDirectory.TagBrightness, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagBrightness));
directory.Set(ReconyxMakernoteDirectory.TagSharpness, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagSharpness));
directory.Set(ReconyxMakernoteDirectory.TagSaturation, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagSaturation));
directory.Set(ReconyxMakernoteDirectory.TagInfraredIlluminator, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagInfraredIlluminator));
directory.Set(ReconyxMakernoteDirectory.TagMotionSensitivity, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagMotionSensitivity));
directory.Set(ReconyxMakernoteDirectory.TagBatteryVoltage, reader.GetUInt16(makernoteOffset + ReconyxMakernoteDirectory.TagBatteryVoltage) / 1000.0);
directory.Set(ReconyxMakernoteDirectory.TagUserLabel, reader.GetNullTerminatedString(makernoteOffset + ReconyxMakernoteDirectory.TagUserLabel, 44));
}
private static void ProcessBinary([NotNull] Directory directory, int tagValueOffset, [NotNull] IndexedReader reader, int byteCount, bool issigned = true, int arrayLength = 1)
{
// expects signed/unsigned int16 (for now)
int byteSize = issigned ? sizeof(short) : sizeof(ushort);
// 'directory' is assumed to contain tags that correspond to the byte position unless it's a set of bytes
for (var i = 0; i < byteCount; i++)
{
if (directory.HasTagName(i))
{
// only process this tag if the 'next' integral tag exists. Otherwise, it's a set of bytes
if (i < byteCount - 1 && directory.HasTagName(i + 1))
{
if (issigned)
{
directory.Set(i, reader.GetInt16(tagValueOffset + (i * byteSize)));
}
else
{
directory.Set(i, reader.GetUInt16(tagValueOffset + (i * byteSize)));
}
}
else
{
// the next arrayLength bytes are a multi-byte value
if (issigned)
{
short[] val = new short[arrayLength];
for (int j = 0; j < val.Length; j++)
{
val[j] = reader.GetInt16(tagValueOffset + ((i + j) * byteSize));
}
directory.Set(i, val);
}
else
{
ushort[] val = new ushort[arrayLength];
for (int j = 0; j < val.Length; j++)
{
val[j] = reader.GetUInt16(tagValueOffset + ((i + j) * byteSize));
}
directory.Set(i, val);
}
i += arrayLength - 1;
}
}
}
}
/// <summary>Processes a TIFF data sequence.</summary>
/// <param name="reader">the <see cref="IndexedReader"/> from which the data should be read</param>
/// <param name="handler">the <see cref="ITiffHandler"/> that will coordinate processing and accept read values</param>
/// <exception cref="TiffProcessingException">if an error occurred during the processing of TIFF data that could not be ignored or recovered from</exception>
/// <exception cref="System.IO.IOException">an error occurred while accessing the required data</exception>
/// <exception cref="TiffProcessingException"/>
public static void ProcessTiff(IndexedReader reader, ITiffHandler handler)
{
// Read byte order.
var byteOrder = reader.GetInt16(0);
reader = byteOrder switch
{
0x4d4d => reader.WithByteOrder(isMotorolaByteOrder: true),
0x4949 => reader.WithByteOrder(isMotorolaByteOrder: false),
_ => throw new TiffProcessingException("Unclear distinction between Motorola/Intel byte ordering: " + reader.GetInt16(0)),
};
// Check the next two values for correctness.
int tiffMarker = reader.GetUInt16(2);
handler.SetTiffMarker(tiffMarker);
var firstIfdOffset = reader.GetInt32(4);
// David Ekholm sent a digital camera image that has this problem
// TODO calling Length should be avoided as it causes IndexedCapturingReader to read to the end of the stream
if (firstIfdOffset >= reader.Length - 1)
{
handler.Warn("First IFD offset is beyond the end of the TIFF data segment -- trying default offset");
// First directory normally starts immediately after the offset bytes, so try that
firstIfdOffset = 2 + 2 + 4;
}
var processedIfdOffsets = new HashSet <int>();
ProcessIfd(handler, reader, processedIfdOffsets, firstIfdOffset);
}
private static void ProcessKodakMakernote([NotNull] KodakMakernoteDirectory directory, int tagValueOffset, [NotNull] IndexedReader reader)
{
// Kodak's makernote is not in IFD format. It has values at fixed offsets.
var dataOffset = tagValueOffset + 8;
try
{
directory.Set(KodakMakernoteDirectory.TagKodakModel, reader.GetString(dataOffset, 8));
directory.Set(KodakMakernoteDirectory.TagQuality, reader.GetByte(dataOffset + 9));
directory.Set(KodakMakernoteDirectory.TagBurstMode, reader.GetByte(dataOffset + 10));
directory.Set(KodakMakernoteDirectory.TagImageWidth, reader.GetUInt16(dataOffset + 12));
directory.Set(KodakMakernoteDirectory.TagImageHeight, reader.GetUInt16(dataOffset + 14));
directory.Set(KodakMakernoteDirectory.TagYearCreated, reader.GetUInt16(dataOffset + 16));
directory.Set(KodakMakernoteDirectory.TagMonthDayCreated, reader.GetBytes(dataOffset + 18, 2));
directory.Set(KodakMakernoteDirectory.TagTimeCreated, reader.GetBytes(dataOffset + 20, 4));
directory.Set(KodakMakernoteDirectory.TagBurstMode2, reader.GetUInt16(dataOffset + 24));
directory.Set(KodakMakernoteDirectory.TagShutterMode, reader.GetByte(dataOffset + 27));
directory.Set(KodakMakernoteDirectory.TagMeteringMode, reader.GetByte(dataOffset + 28));
directory.Set(KodakMakernoteDirectory.TagSequenceNumber, reader.GetByte(dataOffset + 29));
directory.Set(KodakMakernoteDirectory.TagFNumber, reader.GetUInt16(dataOffset + 30));
directory.Set(KodakMakernoteDirectory.TagExposureTime, reader.GetUInt32(dataOffset + 32));
directory.Set(KodakMakernoteDirectory.TagExposureCompensation, reader.GetInt16(dataOffset + 36));
directory.Set(KodakMakernoteDirectory.TagFocusMode, reader.GetByte(dataOffset + 56));
directory.Set(KodakMakernoteDirectory.TagWhiteBalance, reader.GetByte(dataOffset + 64));
directory.Set(KodakMakernoteDirectory.TagFlashMode, reader.GetByte(dataOffset + 92));
directory.Set(KodakMakernoteDirectory.TagFlashFired, reader.GetByte(dataOffset + 93));
directory.Set(KodakMakernoteDirectory.TagIsoSetting, reader.GetUInt16(dataOffset + 94));
directory.Set(KodakMakernoteDirectory.TagIso, reader.GetUInt16(dataOffset + 96));
directory.Set(KodakMakernoteDirectory.TagTotalZoom, reader.GetUInt16(dataOffset + 98));
directory.Set(KodakMakernoteDirectory.TagDateTimeStamp, reader.GetUInt16(dataOffset + 100));
directory.Set(KodakMakernoteDirectory.TagColorMode, reader.GetUInt16(dataOffset + 102));
directory.Set(KodakMakernoteDirectory.TagDigitalZoom, reader.GetUInt16(dataOffset + 104));
directory.Set(KodakMakernoteDirectory.TagSharpness, reader.GetSByte(dataOffset + 107));
}
catch (IOException ex)
{
directory.AddError("Error processing Kodak makernote data: " + ex.Message);
}
}
/// <summary>Processes a TIFF data sequence.</summary>
/// <param name="reader">the <see cref="IndexedReader"/> from which the data should be read</param>
/// <param name="handler">the <see cref="ITiffHandler"/> that will coordinate processing and accept read values</param>
/// <param name="tiffHeaderOffset">the offset within <c>reader</c> at which the TIFF header starts</param>
/// <exception cref="TiffProcessingException">if an error occurred during the processing of TIFF data that could not be ignored or recovered from</exception>
/// <exception cref="System.IO.IOException">an error occurred while accessing the required data</exception>
/// <exception cref="TiffProcessingException"/>
public static void ProcessTiff([NotNull] IndexedReader reader, [NotNull] ITiffHandler handler, int tiffHeaderOffset = 0)
{
// Read byte order.
switch (reader.GetInt16(tiffHeaderOffset))
{
case 0x4d4d: // MM
reader.IsMotorolaByteOrder = true;
break;
case 0x4949: // II
reader.IsMotorolaByteOrder = false;
break;
default:
throw new TiffProcessingException("Unclear distinction between Motorola/Intel byte ordering: " + reader.GetInt16(tiffHeaderOffset));
}
// Check the next two values for correctness.
int tiffMarker = reader.GetUInt16(2 + tiffHeaderOffset);
handler.SetTiffMarker(tiffMarker);
var firstIfdOffset = reader.GetInt32(4 + tiffHeaderOffset) + tiffHeaderOffset;
// David Ekholm sent a digital camera image that has this problem
// TODO calling Length should be avoided as it causes IndexedCapturingReader to read to the end of the stream
if (firstIfdOffset >= reader.Length - 1)
{
handler.Warn("First IFD offset is beyond the end of the TIFF data segment -- trying default offset");
// First directory normally starts immediately after the offset bytes, so try that
firstIfdOffset = tiffHeaderOffset + 2 + 2 + 4;
}
var processedIfdOffsets = new HashSet <int>();
ProcessIfd(handler, reader, processedIfdOffsets, firstIfdOffset, tiffHeaderOffset);
handler.Completed(reader, tiffHeaderOffset);
}
/// <exception cref="System.IO.IOException"/>
private static void ProcessTag(ITiffHandler handler, int tagId, int tagValueOffset, int componentCount, TiffDataFormatCode formatCode, IndexedReader reader)
{
switch (formatCode)
{
case TiffDataFormatCode.Undefined:
{
// this includes exif user comments
handler.SetByteArray(tagId, reader.GetBytes(tagValueOffset, componentCount));
break;
}
case TiffDataFormatCode.String:
{
handler.SetString(tagId, reader.GetNullTerminatedStringValue(tagValueOffset, componentCount));
break;
}
case TiffDataFormatCode.RationalS:
{
if (componentCount == 1)
{
handler.SetRational(tagId, new Rational(reader.GetInt32(tagValueOffset), reader.GetInt32(tagValueOffset + 4)));
}
else if (componentCount > 1)
{
var array = new Rational[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = new Rational(reader.GetInt32(tagValueOffset + 8 * i), reader.GetInt32(tagValueOffset + 4 + 8 * i));
}
handler.SetRationalArray(tagId, array);
}
break;
}
case TiffDataFormatCode.RationalU:
{
if (componentCount == 1)
{
handler.SetRational(tagId, new Rational(reader.GetUInt32(tagValueOffset), reader.GetUInt32(tagValueOffset + 4)));
}
else if (componentCount > 1)
{
var array = new Rational[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = new Rational(reader.GetUInt32(tagValueOffset + 8 * i), reader.GetUInt32(tagValueOffset + 4 + 8 * i));
}
handler.SetRationalArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Single:
{
if (componentCount == 1)
{
handler.SetFloat(tagId, reader.GetFloat32(tagValueOffset));
}
else
{
var array = new float[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetFloat32(tagValueOffset + i * 4);
}
handler.SetFloatArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Double:
{
if (componentCount == 1)
{
handler.SetDouble(tagId, reader.GetDouble64(tagValueOffset));
}
else
{
var array = new double[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetDouble64(tagValueOffset + i * 4);
}
handler.SetDoubleArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int8S:
{
if (componentCount == 1)
{
handler.SetInt8S(tagId, reader.GetSByte(tagValueOffset));
}
else
{
var array = new sbyte[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetSByte(tagValueOffset + i);
}
handler.SetInt8SArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int8U:
{
if (componentCount == 1)
{
handler.SetInt8U(tagId, reader.GetByte(tagValueOffset));
}
else
{
var array = new byte[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetByte(tagValueOffset + i);
}
handler.SetInt8UArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int16S:
{
if (componentCount == 1)
{
handler.SetInt16S(tagId, reader.GetInt16(tagValueOffset));
}
else
{
var array = new short[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetInt16(tagValueOffset + i * 2);
}
handler.SetInt16SArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int16U:
{
if (componentCount == 1)
{
handler.SetInt16U(tagId, reader.GetUInt16(tagValueOffset));
}
else
{
var array = new ushort[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetUInt16(tagValueOffset + i * 2);
}
handler.SetInt16UArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int32S:
{
// NOTE 'long' in this case means 32 bit, not 64
if (componentCount == 1)
{
handler.SetInt32S(tagId, reader.GetInt32(tagValueOffset));
}
else
{
var array = new int[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetInt32(tagValueOffset + i * 4);
}
handler.SetInt32SArray(tagId, array);
}
break;
}
case TiffDataFormatCode.Int32U:
{
// NOTE 'long' in this case means 32 bit, not 64
if (componentCount == 1)
{
handler.SetInt32U(tagId, reader.GetUInt32(tagValueOffset));
}
else
{
var array = new uint[componentCount];
for (var i = 0; i < componentCount; i++)
{
array[i] = reader.GetUInt32(tagValueOffset + i * 4);
}
handler.SetInt32UArray(tagId, array);
}
break;
}
default:
{
handler.Error($"Invalid TIFF tag format code {formatCode} for tag 0x{tagId:X4}");
break;
}
}
}