public string GetCDDBQuerySegment()
{
int numTracks = this.GetNumTracks();
if (numTracks == -1)
{
throw new Exception("Unable to retrieve the number of tracks");
}
string str = numTracks.ToString();
int num3 = 0;
int num4 = 0;
double num5 = 0.0;
int num6 = 0;
int track = 0;
while (track < numTracks)
{
num5 = (((this.Toc.TrackData[track].Address_1 * 60) + this.Toc.TrackData[track].Address_2) * 0x4b) + this.Toc.TrackData[track].Address_3;
num4 += this.cddb_sum((this.Toc.TrackData[track].Address_1 * 60) + this.Toc.TrackData[track].Address_2);
num6 += this.GetSeconds(track);
str = str + " " + string.Format("{0}", num5);
track++;
}
int num7 = (this.Toc.TrackData[track].Address_1 * 60) + this.Toc.TrackData[track].Address_2;
str = str + " " + num7;
Kernel32.TRACK_DATA track_data = this.Toc.TrackData[numTracks];
Kernel32.TRACK_DATA track_data2 = this.Toc.TrackData[0];
num3 = ((track_data.Address_1 * 60) + track_data.Address_2) - ((track_data2.Address_1 * 60) + track_data2.Address_2);
ulong num8 = (ulong)((((num4 % 0xff) << 0x18) | (num3 << 8)) | numTracks);
return(str);
}
public bool IsAudioTrack(int track)
{
if ((this.TocValid && (track >= this.Toc.FirstTrack)) && (track <= this.Toc.LastTrack))
{
Kernel32.TRACK_DATA track_data = this.Toc.TrackData[track - 1];
return((track_data.Control & 4) == 0);
}
return(false);
}
protected int GetStartSector(int track)
{
if ((this.TocValid && (track >= this.Toc.FirstTrack)) && (track <= this.Toc.LastTrack))
{
Kernel32.TRACK_DATA track_data = this.Toc.TrackData[track - 1];
return(((((track_data.Address_1 * 60) * 0x4b) + (track_data.Address_2 * 0x4b)) + track_data.Address_3) - 150);
}
return(-1);
}
protected int GetEndSector2(int track)
{
if ((this.TocValid && (track >= this.Toc.FirstTrack)) && (track <= this.Toc.LastTrack))
{
Kernel32.TRACK_DATA track_data = this.Toc.TrackData[track];
return((((track_data.Address_1 * 60) * 0x4b) + (track_data.Address_2 * 0x4b)) - 0x97);
}
return(-1);
}
public string GetCDDBDiskID()
{
int numTracks = GetNumTracks();
if (numTracks == -1)
{
throw new Exception("Unable to retrieve the number of tracks, Cannot calculate DiskID.");
}
string postfix = numTracks.ToString();
int i, t = 0, n = 0;
double ofs = 0;
int secs = 0;
/* For backward compatibility this algorithm must not change */
i = 0;
while (i < numTracks)
{
Console.WriteLine("Track {0}: {1}:{2}", i, GetSeconds(i) / 60, GetSeconds(i) % 60);
ofs = (((Toc.TrackData[i].Address_1 * 60) + Toc.TrackData[i].Address_2) * 75) + Toc.TrackData[i].Address_3;
n = n + cddb_sum((Toc.TrackData[i].Address_1 * 60) + Toc.TrackData[i].Address_2);
secs += GetSeconds(i);
postfix += " " + string.Format("{0}", ofs);
i++;
}
int numSecs = Toc.TrackData[i].Address_1 * 60 + Toc.TrackData[i].Address_2;
Console.WriteLine("n = {0}, numSecs = {1}, secs = {2}", n, numSecs, secs);
postfix += " " + numSecs;
Kernel32.TRACK_DATA last = Toc.TrackData[numTracks];
Kernel32.TRACK_DATA first = Toc.TrackData[0];
t = ((last.Address_1 * 60) + last.Address_2) -
((first.Address_1 * 60) + first.Address_2);
ulong lDiscId = (((uint)n % 0xff) << 24 | (uint)t << 8 | (uint)numTracks);
string sDiscId = String.Format("{0:x8}", lDiscId);
return(sDiscId);
}
public int GetNumAudioTracks()
{
if (this.TocValid)
{
int num = 0;
for (int i = this.Toc.FirstTrack - 1; i < this.Toc.LastTrack; i++)
{
Kernel32.TRACK_DATA track_data = this.Toc.TrackData[i];
if (track_data.Control == 0)
{
num++;
}
}
return(num);
}
return(-1);
}
