protected static string ParseExtendedTextFrame(byte[] data, out string description, out LanguageCode language)
{
int place = 0;
SingleByteField encodingField = new SingleByteField();
place += encodingField.Parse(data, place);
FixedLengthAsciiTextField langField = new FixedLengthAsciiTextField(3);
place += langField.Parse(data, place);
TextField descriptinoField = TextField.CreateTextField(true, (EncodingScheme)encodingField.Value);
place += descriptinoField.Parse(data, place);
TextField textField = TextField.CreateTextField(false, (EncodingScheme)encodingField.Value);
place += textField.Parse(data, place);
if (!Enum.IsDefined(typeof(LanguageCode), langField.Text))
{
langField.Text = "Unknown";
}
language = (LanguageCode)Enum.Parse(typeof(LanguageCode), langField.Text);
description = descriptinoField.Text;
return(textField.Text);
}
protected override Frame ParseFrame(byte[] data)
{
int place = 0;
SingleByteField encodingField = new SingleByteField();
place += encodingField.Parse(data, place);
FixedLengthAsciiTextField imageFormatField = new FixedLengthAsciiTextField(3);
place += imageFormatField.Parse(data, place);
SingleByteField pictureTypeField = new SingleByteField();
place += pictureTypeField.Parse(data, place);
TextField descriptionField = TextField.CreateTextField(true, (EncodingScheme)encodingField.Value);
place += descriptionField.Parse(data, place);
BinaryField dataField = new BinaryField();
place += dataField.Parse(data, place);
System.IO.MemoryStream memoryImageBuffer = new System.IO.MemoryStream(dataField.Data);
try {
var image = Image.Load(memoryImageBuffer);
return(new PictureFrame(dataField.Data, image, descriptionField.Text, (PictureType)pictureTypeField.Value));
}
catch (ArgumentException) {
throw new FrameParsingException("Unrecognized picture format found in Picture frame.");
}
}
public void DoTest()
{
foreach (string testCase in _asciiTestCases)
{
FixedLengthAsciiTextField field = new FixedLengthAsciiTextField(testCase);
MemoryStream stream = new MemoryStream();
field.WriteToStream(stream);
FixedLengthAsciiTextField field2 = new FixedLengthAsciiTextField(testCase.Length);
field2.Parse(stream.GetBuffer(), 0);
Assert.AreEqual(field.Text, field2.Text);
}
}
