/// <summary>
/// Ensures that there is space for the tag at the end of the stream.
/// </summary>
/// <param name="stream">The stream to check.</param>
private void EnsureSpace(Stream stream)
{
if (!ID3v1Tag.HasTag(stream))
{
stream.SetLength(stream.Length + TagLenth);
}
}
/// <summary>
/// Reads an ID3v1 tag from a stream. Returns null if no ID3v1 tag can be found
/// in the stream.
/// </summary>
/// <param name="stream">The stream to read.</param>
/// <returns>The tag read from the stream, or null if no ID3v1 tag can be found.</returns>
public static ID3v1Tag ReadTag(Stream stream)
{
ID3v1Tag tag = null;
if (HasTag(stream))
{
tag = new ID3v1Tag();
byte[] bytes;
bytes = ReadFromFile(ID3v1Tag.TitleFieldLength, stream);
tag.Title = BytesToString(bytes);
bytes = ReadFromFile(ID3v1Tag.ArtistFieldLength, stream);
tag.Artist = BytesToString(bytes);
bytes = ReadFromFile(ID3v1Tag.AlbumFieldLength, stream);
tag.Album = BytesToString(bytes);
bytes = ReadFromFile(ID3v1Tag.YearFieldLength, stream);
tag.Year = BytesToString(bytes);
bytes = ReadFromFile(ID3v1Tag.ID3v1_1CommentsFieldLength, stream);
tag.Comments = BytesToString(bytes);
// Track Number
bytes = ReadFromFile(2, stream);
if (bytes[0] == 0x0)
{
tag.TrackNumber = (int)bytes[1];
}
else
{
tag.Comments += BytesToString(bytes);
}
// Genre
bytes = ReadFromFile(1, stream);
if ((sbyte)bytes[0] == -1)
{
tag.GenreAsInt = -1;
}
else
{
tag.GenreAsInt = (int)bytes[0];
}
}
return(tag);
}