protected override Frame ParseFrame(byte[] data)
{
int place = 0;
SingleByteField encodingField = new SingleByteField();
place += encodingField.Parse(data, place);
TextField imageFormatField = TextField.CreateTextField(true, EncodingScheme.Ascii);
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 {
Image 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.");
}
}
protected override Frame ParseFrame(byte[] data)
{
int place = 0;
BinaryField dataField = new BinaryField();
place += dataField.Parse(data, place);
return(new MusicCDIdentifierFrame(dataField.Data));
}
protected override Frame ParseFrame(byte[] data)
{
int place = 0;
TextField ownerField = TextField.CreateTextField(true, EncodingScheme.Ascii);
place += ownerField.Parse(data, place);
BinaryField dataField = new BinaryField();
place += dataField.Parse(data, place);
return(new UniqueFileIdentifierFrame(dataField.Data, ownerField.Text));
}
//"Tests the Read method of the class."
public void TestRead()
{
for (int testCase = 0; testCase < 100; testCase++)
{
byte[] randomData = new byte[_randomNumberGenerator.Next(1, 50000)];
int offset = _randomNumberGenerator.Next(0, randomData.Length - 1);
_randomNumberGenerator.NextBytes(randomData);
BinaryField field = new BinaryField();
field.Parse(randomData, offset);
Assert.AreEqual(field.Data.Length, randomData.Length - offset);
Assert.AreEqual(field.Length, randomData.Length - offset);
Assert.AreEqual(field.Length, field.Data.Length);
for (int i = offset; i < randomData.Length; i++)
{
Assert.AreEqual(randomData[i], field.Data[i - offset]);
}
}
}
protected override Frame ParseFrame(byte[] data)
{
int place = 0;
BinaryField dataField = new BinaryField();
place += dataField.Parse(data, place);
if (dataField.Data.Length != 4)
{
throw new FrameParsingException("Length of a Play Counter frame should be exactly 4. Larger frames are not yet supported.");
}
int counter =
(((int)dataField.Data[0]) << 24) +
(((int)dataField.Data[1]) << 16) +
(((int)dataField.Data[2]) << 8) +
((int)dataField.Data[3]);
return(new PlayCounterFrame(counter));
}
protected override Frame ParseFrame(byte[] data)
{
//Text encoding $xx
//MIME type <text string> $00
//Filename <text string according to encoding> $00 (00)
//Content description <text string according to encóding> $00 (00)
//Encapsulated object <binary data>
int place = 0;
SingleByteField encodingField = new SingleByteField();
place += encodingField.Parse(data, place);
TextField mimeTypeField = TextField.CreateTextField(true, EncodingScheme.Ascii);
place += mimeTypeField.Parse(data, place);
TextField fileNameField = TextField.CreateTextField(true, (EncodingScheme)encodingField.Value);
place += fileNameField.Parse(data, place);
TextField contentDescriptionField = TextField.CreateTextField(true, (EncodingScheme)encodingField.Value);
place += contentDescriptionField.Parse(data, place);
BinaryField dataField = new BinaryField();
place += dataField.Parse(data, place);
return(new GeneralEncapsulatedObjectFrame(
fileNameField.Text,
contentDescriptionField.Text,
mimeTypeField.Text,
dataField.Data));
}
