/// <summary>
/// Add a new MediaItem to the database.
/// </summary>
/// <param name="mi">The Item to add to the database</param>
public void add(MediaItem mi)
{
if (mi.Type == MediaItem.types.MP3)
{
musicTable.Rows.Add(new object[] { mi.TrackID, mi.Title, mi.Artist, mi.Album, mi.Filename, mi.Year, mi.Genre, mi.Length, mi });
}
}
private void parseMhod(MediaItem media)
{
byte[] buff = new byte[4];
long position = strDB.Position;
debug("Found mhod");
seek(8); //skip over mhod to total length
strDB.Read(buff, 0, 4); //read total length
long totalLength = System.BitConverter.ToUInt32(buff, 0);
debug("Size of this mhod is " + totalLength);
strDB.Read(buff, 0, 4); //now at position 20 of this mhod
long type = System.BitConverter.ToUInt32(buff, 0);
if ((type == (long)Types.Album) || (type == (long)Types.Artist) || (type == (long)Types.Genre) ||
(type == (long)Types.Location) || (type == (long)Types.Title)) //artist, album, title, filename
{
debug("Read type : " + type);
seek(12);
strDB.Read(buff, 0, 4); //read length of string
long strLen = System.BitConverter.ToUInt32(buff, 0);
debug("String length is " + strLen);
seek(8); //now at position 40 of mhod (actual string)
byte[] str = new byte[strLen];
strDB.Read(str, 0, str.Length);
String theString = new UnicodeEncoding().GetString(str);
switch (type)
{
case (long)Types.Title:
media.Title = theString;
break;
case (long)Types.Album:
media.Album = theString;
break;
case (long)Types.Artist:
media.Artist = theString;
break;
case (long)Types.Location:
media.Filename = iPodDrive + theString.Replace(':', '\\');
break;
case (long)Types.Genre:
media.Genre = theString;
break;
default:
break;
}
}
strDB.Seek(position, SeekOrigin.Begin);
strDB.Seek(totalLength, SeekOrigin.Current);
}
private void parseMhit()
{
long position;
byte[] buffer = new byte[4]; //most stuff in iTunesDB is done in 4s..
position = strDB.Position; //save our current position
strDB.Read(buffer, 0, 4); //read header length - we are now at position 8
long header = System.BitConverter.ToUInt32(buffer, 0);
debug("Header length is: " + header);
seek(4); //skip over total length of mhit - now at position 12
strDB.Read(buffer, 0, 4); //read number of mhods (strings)
long numMhods = System.BitConverter.ToUInt32(buffer, 0);
debug("Number of mhods: " + numMhods);
seek(28); //skip over various fields - now at position 44
debug("Reading track number");
strDB.Read(buffer, 0, 4); //read track number - now at position 48
long trackNum = System.BitConverter.ToUInt32(buffer, 0);
debug("Reading year");
seek(4); //seek to year (position 52 of mhit)
strDB.Read(buffer, 0, 4);
int year = (int) System.BitConverter.ToUInt32(buffer, 0);
seek(152); //seek to track type (position 208 of mhit)
strDB.Read(buffer, 0, 4); //read track type
MediaItem.types trackType = (MediaItem.types)System.BitConverter.ToUInt32(buffer, 0);
MediaItem mi = new MediaItem(trackType, trackNum);
mi.Year = year;
//skip to start of mhods - a mhod is a certain piece of information about the track
strDB.Seek(position, SeekOrigin.Begin); //seek back to where the 'header' is - this is the start of the mhods.
strDB.Seek(header - 4, SeekOrigin.Current);
debug("Parsing mhods..");
for (int i = 0; i < numMhods; i++)
{
this.parseMhod(mi);
}
mediaDB.add(mi); //add item to database
debug(mi.ToString());
}
/// <summary>
/// Parse a filename using the 'regexp' given in FrmSave.
/// </summary>
/// <param name="mi">MediaItem to parse</param>
/// <param name="formatstr">formatString containing the 'regexp'</param>
/// <returns></returns>
private string parseFileName(MediaItem mi, string formatstr)
{
string filename = formatstr;
filename = filename.Replace("%a", mi.Artist);
filename = filename.Replace("%A", mi.Album);
filename = filename.Replace("%t", Convert.ToString(mi.Title));
filename = filename.Replace("%y", Convert.ToString(mi.Year));
filename = filename.Replace("%n", Convert.ToString(mi.TrackID));
filename = filename.Replace("%N", mi.TrackID < 10 ? "0" + Convert.ToString(mi.TrackID) : Convert.ToString(mi.TrackID));
filename = filename.Replace("%g", mi.Genre);
filename = replaceInvalidChars(filename);
return filename;
}
