////------------------------------------------------------------------------------------------------------------------------------
/// <inheritdoc />
public byte[] ToByteArray()
{
using (StreamBuffer buffer = new StreamBuffer())
{
if (UseHeader)
{
// Header
buffer.Write(HeaderIdentifierBytes);
buffer.WritePadding(NullByte, 2);
buffer.WriteString(XingEncoderVersion);
buffer.WritePadding(NullByte, 2);
buffer.WriteString(Version);
buffer.WritePadding(NullByte, 2);
buffer.WritePadding(PaddingByte, 226);
}
// Image extension
int imageExtensionOffset = (int)buffer.Position;
if ((Image != null) && !String.IsNullOrEmpty(Image.FileExtension))
{
buffer.WriteString(Image.FileExtension);
buffer.WritePadding(PaddingByte, 4 - Image.FileExtension.Length);
}
else
buffer.WritePadding(PaddingByte, 4);
// Image binary
int imageBinaryOffset = (int)buffer.Position;
if ((Image != null) && (Image.BinaryImage != null))
{
buffer.WriteInt(Image.BinaryImage.Length);
buffer.Write(Image.BinaryImage);
}
else
buffer.WriteInt(0);
// Unused
int unusedOffset = (int)buffer.Position;
buffer.WritePadding(NullByte, 4);
// Version information
int versionInfoOffset = (int)buffer.Position;
buffer.WriteString(HeaderIdentifier);
buffer.WritePadding(NullByte, 2);
buffer.WriteString(XingEncoderVersion);
buffer.WritePadding(NullByte, 2);
buffer.WriteString(Version);
buffer.WritePadding(NullByte, 2);
buffer.WritePadding(PaddingByte, 226);
// Audio meta-data
// The audio meta-data is the heart of the MusicMatch tag. It contains most
// of the pertinent information found in other tagging formats (song title,
// album title, artist, etc.) and some that are unique to this format (mood,
// preference, situation).
int audioMetaDataOffset = (int)buffer.Position;
// Single-line text fields
buffer.WriteShort((short)(SongTitle ?? String.Empty).Length);
buffer.WriteString(SongTitle ?? String.Empty);
buffer.WriteShort((short)(AlbumTitle ?? String.Empty).Length);
buffer.WriteString(AlbumTitle ?? String.Empty);
buffer.WriteShort((short)(ArtistName ?? String.Empty).Length);
buffer.WriteString(ArtistName ?? String.Empty);
buffer.WriteShort((short)(Genre ?? String.Empty).Length);
buffer.WriteString(Genre ?? String.Empty);
buffer.WriteShort((short)(Tempo ?? String.Empty).Length);
buffer.WriteString(Tempo ?? String.Empty);
buffer.WriteShort((short)(Mood ?? String.Empty).Length);
buffer.WriteString(Mood ?? String.Empty);
buffer.WriteShort((short)(Situation ?? String.Empty).Length);
buffer.WriteString(Situation ?? String.Empty);
buffer.WriteShort((short)(Preference ?? String.Empty).Length);
buffer.WriteString(Preference ?? String.Empty);
// Non-text fields
buffer.WriteShort((short)(SongDuration ?? String.Empty).Length);
buffer.WriteString(SongDuration ?? String.Empty);
buffer.WriteDouble(CreationDate.ToOADate());
buffer.WriteInt(PlayCounter);
buffer.WriteShort((short)(OriginalFilename ?? String.Empty).Length);
buffer.WriteString(OriginalFilename ?? String.Empty);
buffer.WriteShort((short)(SerialNumber ?? String.Empty).Length);
buffer.WriteString(SerialNumber ?? String.Empty);
buffer.WriteShort(TrackNumber);
// Multi-line text fields
buffer.WriteShort((short)(Notes ?? String.Empty).Length);
buffer.WriteString(Notes ?? String.Empty);
buffer.WriteShort((short)(ArtistBio ?? String.Empty).Length);
buffer.WriteString(ArtistBio ?? String.Empty);
buffer.WriteShort((short)(Lyrics ?? String.Empty).Length);
buffer.WriteString(Lyrics ?? String.Empty);
// Internet addresses
buffer.WriteShort((short)(ArtistUrl ?? String.Empty).Length);
buffer.WriteString(ArtistUrl ?? String.Empty);
buffer.WriteShort((short)(BuyCdUrl ?? String.Empty).Length);
buffer.WriteString(BuyCdUrl ?? String.Empty);
buffer.WriteShort((short)(ArtistEmail ?? String.Empty).Length);
buffer.WriteString(ArtistEmail ?? String.Empty);
// Null bytes
buffer.WritePadding(NullByte, 16);
// In all versions of the MusicMatch format up to and including 3.00, the
// section is always 7868 bytes in length. All subsequent versions allowed
// three possible lengths for this section: 7936, 8004, and 8132 bytes. The
// conditions under which a particular length from these three possibilities
// was used is unknown. In all cases, this section is padded with dashes
// ($2D) to achieve this constant size.
double version;
if (!Double.TryParse(Version, out version))
version = 3.100000;
// The padding is calculated by taking the AudioMetaDataSize minus the total size of audio meta data fields,
// minus the total size of the data offset fields, minus the footer size.
long paddingSize = ((version <= 3.1) ? AudioMetaDataSizes.First() : AudioMetaDataSizes.Last()) - (buffer.Length - audioMetaDataOffset) - DataOffsetFieldsSize - FooterSize;
buffer.WritePadding(0x2D, (int)paddingSize);
// Data offsets
buffer.WriteInt(imageExtensionOffset);
buffer.WriteInt(imageBinaryOffset);
buffer.WriteInt(unusedOffset);
buffer.WriteInt(versionInfoOffset);
buffer.WriteInt(audioMetaDataOffset);
// Footer
buffer.Write(FooterIdentifierBytes);
buffer.WritePadding(PaddingByte, 13);
buffer.WriteString(Version.Substring(0 ,4));
buffer.WritePadding(PaddingByte, 12);
return buffer.ToByteArray();
}
}
public void WritePaddingTest()
{
StreamBuffer target = new StreamBuffer(); // TODO: Initialize to an appropriate value
byte paddingByte = 0; // TODO: Initialize to an appropriate value
int length = 0; // TODO: Initialize to an appropriate value
target.WritePadding(paddingByte, length);
Assert.Inconclusive("A method that does not return a value cannot be verified.");
}
////------------------------------------------------------------------------------------------------------------------------------
/// <inheritdoc/>
/// <remarks>
/// The extended tags will only be written when <see cref="UseExtendedTag"/> is set to true.
/// </remarks>
public byte[] ToByteArray()
{
using (StreamBuffer buffer = new StreamBuffer())
{
byte[] byteValue;
if (UseExtendedTag)
{
// TAG+
buffer.Write(ExtendedHeaderIdentifierBytes);
// Title - write the last 60 bytes
byteValue = _encoding.GetBytes(GetExtendedString(_trackTitle ?? String.Empty, 30, 60, true));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 60 - byteValue.Length);
// Artist - write the last 60 bytes
byteValue = _encoding.GetBytes(GetExtendedString(_artist ?? String.Empty, 30, 60, true));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 60 - byteValue.Length);
// Album Title - write the last 60 bytes
byteValue = _encoding.GetBytes(GetExtendedString(_albumTitle ?? String.Empty, 30, 60, true));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 60 - byteValue.Length);
// Track Speed
buffer.WriteByte((byte)_trackSpeed);
// Extended Track Genre
byteValue = _encoding.GetBytes(ExtendedTrackGenre ?? String.Empty);
buffer.Write(byteValue);
buffer.WritePadding(0x00, 30 - byteValue.Length);
// Start-time
long startTimeMinutes = (StartTime.Days * 24 * 60) + (StartTime.Hours * 60) + StartTime.Minutes;
long startTimeSeconds = StartTime.Seconds;
string startTime = startTimeMinutes.ToString("000") + ":" + startTimeSeconds.ToString("00");
byteValue = _encoding.GetBytes(GetTruncatedEncodedString(startTime, 6));
buffer.Write(byteValue);
// End-time
long endTimeMinutes = (EndTime.Days * 24 * 60) + (EndTime.Hours * 60) + EndTime.Minutes;
long endTimeSeconds = EndTime.Seconds;
string endTime = endTimeMinutes.ToString("000") + ":" + endTimeSeconds.ToString("00");
byteValue = _encoding.GetBytes(GetTruncatedEncodedString(endTime, 6));
buffer.Write(byteValue);
}
// TAG
buffer.Write(HeaderIdentifierBytes);
// Track Title
byteValue = _encoding.GetBytes(GetTruncatedEncodedString(_trackTitle ?? String.Empty, 30));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 30 - byteValue.Length);
// Artist
byteValue = _encoding.GetBytes(GetTruncatedEncodedString(_artist ?? String.Empty, 30));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 30 - byteValue.Length);
// Album Title
byteValue = _encoding.GetBytes(GetTruncatedEncodedString(_albumTitle ?? String.Empty, 30));
buffer.Write(byteValue);
buffer.WritePadding(0x00, 30 - byteValue.Length);
// Album Year
byteValue = _encoding.GetBytes(AlbumYear ?? String.Empty);
buffer.Write(byteValue);
buffer.WritePadding(0x00, 4 - byteValue.Length);
// Track comment
byteValue = _encoding.GetBytes(TrackComment ?? String.Empty);
buffer.Write(byteValue);
buffer.WritePadding(0x00, TrackCommentLength - byteValue.Length);
// Track Number
if (Version >= Id3v1Version.Id3v11)
{
buffer.WriteByte(0x00);
buffer.WriteByte(TrackNumber);
}
// Genre
buffer.WriteByte((byte)Genre);
return buffer.ToByteArray();
}
}
public void SeekTest()
{
StreamBuffer target = new StreamBuffer();
target.WritePadding(0x00, 1024);
const long Offset = 100;
const SeekOrigin Loc = new SeekOrigin();
const long Expected = 100;
long actual= target.Seek(Offset, Loc);
Assert.AreEqual(Expected, actual);
}
