static Media RmAnalyse(Stream stream, byte[] header16)
{
Media music = new Media();
byte[] Id3v1 = new byte[128];
stream.Seek(stream.Length - 128, SeekOrigin.Begin);
stream.Read(Id3v1, 0, 128);
stream.Seek(0, SeekOrigin.Begin);
if (!ByteManager.CompareByteArray(ByteManager.id3v1Tag, ByteManager.CopyByteArray(Id3v1, 0, 3)))
return AnalyseRmID3V2(stream, header16);
music.Title = Encoding.Default.GetString(ByteManager.CopyByteArray(Id3v1, 3, 30)).Replace("\0", "");
music.Artist = Encoding.Default.GetString(ByteManager.CopyByteArray(Id3v1, 33, 30)).Replace("\0", "");
music.DiscTitle = Encoding.Default.GetString(ByteManager.CopyByteArray(Id3v1, 63, 30)).Replace("\0", "");
music.PublishYear = Encoding.Default.GetString(ByteManager.CopyByteArray(Id3v1, 93, 4)).Replace("\0", "");
music.Remark = Encoding.Default.GetString(ByteManager.CopyByteArray(Id3v1, +97, 30)).Replace("\0", "");
return music;
}
static Media AnalyseRmID3V2(Stream stream, byte[] header)
{
Media music = new Media();
byte[] field = new byte[4];
uint lenght = ByteManager.ByteCovertToUint(header, 4);
stream.Seek(lenght, SeekOrigin.Begin);
for (; ; )
{
stream.Read(field, 0, 4);
uint offset = Convert.ToUInt32((stream.ReadByte() << 24) + (stream.ReadByte() << 16) + (stream.ReadByte() << 8) + stream.ReadByte());
if (ByteManager.CompareByteArray(ByteManager.rm_field_CONT, field))
{
stream.Seek(2, SeekOrigin.Current);
byte[] contInfo = new byte[offset - 10];
stream.Read(contInfo, 0, contInfo.Length);
music = AnalyseCONT(contInfo);
break;
}
else
stream.Read(new byte[offset - 8], 0, Convert.ToInt32(offset - 8));
}
return music;
}
static Media WmaAnalyse(Stream stream)
{
Media music = new Media();
try
{
StreamIndex(stream, ByteManager.wmaInfoTag);
for (int i = 0; i < 8; i++)
stream.ReadByte();
int titleLenght = stream.ReadByte() + (stream.ReadByte() << 8);
int artistLenght = stream.ReadByte() + (stream.ReadByte() << 8);
int copyrightLenght = stream.ReadByte() + (stream.ReadByte() << 8);
int remarkLenght = stream.ReadByte() + (stream.ReadByte() << 8);
byte[] titleBytes = new byte[titleLenght];
stream.Read(titleBytes, 0, titleLenght);
music.Title = Encoding.Unicode.GetString(titleBytes);
byte[] artistBytes = new byte[artistLenght];
stream.Read(artistBytes, 0, artistLenght);
music.Artist = Encoding.Unicode.GetString(artistBytes);
byte[] copyrightBytes = new byte[copyrightLenght];
stream.Read(copyrightBytes, 0, copyrightLenght);
music.Copyright = Encoding.Unicode.GetString(copyrightBytes);
byte[] remarkBytes = new byte[remarkLenght];
stream.Read(remarkBytes, 0, remarkLenght);
music.Remark = Encoding.Unicode.GetString(remarkBytes);
}
catch { }
return music;
}
static Media AnalyseCONT(byte[] contInfo)
{
Media music = new Media();
int startIndex = 0;
int titleLenght = contInfo[startIndex + 1];
music.Title = Encoding.Default.GetString(ByteManager.CopyByteArray(contInfo, startIndex + 2, titleLenght));
startIndex += titleLenght + 2;
int artistLenght = contInfo[startIndex + 1];
music.Artist = Encoding.Default.GetString(ByteManager.CopyByteArray(contInfo, startIndex + 2, artistLenght));
startIndex += artistLenght + 2;
int copyrightLenght = contInfo[startIndex + 1];
music.Copyright = Encoding.Default.GetString(ByteManager.CopyByteArray(contInfo, startIndex + 2, copyrightLenght));
startIndex += copyrightLenght + 2;
return music;
}
public static string GetShowString(Media m)
{
string showString = "";
if (!string.IsNullOrEmpty(m.title))
showString += "����:" + m.title + "<br />";
if (!string.IsNullOrEmpty(m.artist))
showString += "������:" + m.artist + "<br />";
if (!string.IsNullOrEmpty(m.discTitle))
showString += "ר��:" + m.discTitle + "<br />";
if (!string.IsNullOrEmpty(m.bitrate))
showString += "������:" + m.bitrate + "<br />";
if (!string.IsNullOrEmpty(m.publishYear))
showString += "������:" + m.publishYear + "<br />";
if (!string.IsNullOrEmpty(m.copyright))
showString += "��Ȩ:" + m.copyright + "<br />";
if (!string.IsNullOrEmpty(m.remark))
showString += "��ע:" + m.remark;
return showString.Trim();
}
public static Media Parse(string strFormat)
{
Media media = new Media();
try
{
string info = Regex.Match(strFormat, @"\d+(@.+?:\d+)+sun").Value;
MatchCollection mc = Regex.Matches(info, @"@(.*?):(\d+)");
string value = strFormat.Replace(info, "");
int start = 0;
foreach (Match match in mc)
{
int lenght = int.Parse(match.Groups[2].Value);
media.GetType().GetProperty(match.Groups[1].Value).SetValue(media, value.Substring(start, lenght), null);
start += lenght;
}
}
catch
{
return new Media();
}
return media;
}
