public async System.Threading.Tasks.Task <CDMetadata> ReadMediaMetadata(string Id)
{
CDMetadata result = null;
var customDevice = await Windows.Devices.Custom.CustomDevice.FromIdAsync(Id,
DeviceAccessMode.ReadWrite,
DeviceSharingMode.Exclusive);
if (customDevice != null)
{
try
{
int[] SectorArray = await GetCDSectorArray(customDevice);
if ((SectorArray != null) && (SectorArray.Length > 1))
{
result = new CDMetadata();
for (int i = 0; i < (SectorArray.Length - 1); i++)
{
CDTrackMetadata t = new CDTrackMetadata()
{
Number = i + 1, Title = string.Empty, ISrc = string.Empty, FirstSector = SectorArray[i], LastSector = SectorArray[i + 1], Duration = TimeSpan.FromSeconds((SectorArray[i + 1] - SectorArray[i]) * CD_RAW_SECTOR_SIZE / (44100 * 4))
};
if (i < result.Tracks.Count)
{
result.Tracks[i] = t;
}
else
{
result.Tracks.Add(t);
}
}
byte[] TextArray = await GetCDTextArray(customDevice);
if (TextArray != null)
{
var r = FillCDMetadata(result, TextArray);
if (r != null)
{
result = r;
}
}
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Exception while reading Media Metadata: " + ex.Message);
result = null;
}
}
return(result);
}
CDMetadata FillCDMetadata(CDMetadata currentCD, byte[] TextArray)
{
try
{
int i_track_last = 0;
string[] ArrayTrackInfo = new string[99];
int Count = (TextArray.Length - 4) / 18;
//Clear CD and Track metadata info:
currentCD.ISrc = string.Empty;
currentCD.Message = string.Empty;
currentCD.Genre = string.Empty;
currentCD.AlbumTitle = string.Empty;
currentCD.Artist = string.Empty;
currentCD.DiscID = string.Empty;
for (int i = 0; i < currentCD.Tracks.Count; i++)
{
currentCD.Tracks[i].ISrc = string.Empty;
currentCD.Tracks[i].Title = string.Empty;
}
for (int i = 0; i < Count; i++)
{
int i_pack_type = TextArray[4 + 18 * i];
if (i_pack_type < 0x80 || i_pack_type > 0x8f)
{
continue;
}
int i_track_number = (TextArray[4 + 18 * i + 1] >> 0) & 0x7f;
int i_extension_flag = (TextArray[4 + 18 * i + 1] >> 7) & 0x01;
if (i_extension_flag != 0)
{
continue;
}
int i_track = i_track_number;
int indexTrack = 4 + 18 * i + 4;
int indexTrackMax = indexTrack + 12;
while (i_track <= 127 && indexTrack < indexTrackMax)
{
byte[] resArray = new byte[13];
int k = 0;
int l = 0;
for (k = 0; k < 12; k++, l++)
{
resArray[l] = TextArray[4 + 18 * i + 4 + k];
if ((resArray[l] == 0x00) || (k == 11))
{
string str;
str = System.Text.Encoding.UTF8.GetString(resArray, 0, (resArray[l] == 0x00) ? l : l + 1);
if (!string.IsNullOrEmpty(str))
{
switch (i_pack_type - 0x80)
{
// Title
case 0x00:
if (i_track == 0)
{
currentCD.AlbumTitle += str;
}
else
{
if (i_track == currentCD.Tracks.Count + 1)
{
CDTrackMetadata t = new CDTrackMetadata()
{
Number = i_track, Title = string.Empty, ISrc = string.Empty, FirstSector = 0, LastSector = 0, Duration = TimeSpan.FromSeconds(0)
};
if ((i_track - 1) < currentCD.Tracks.Count)
{
currentCD.Tracks[i_track - 1] = t;
}
else
{
currentCD.Tracks.Add(t);
}
}
if (i_track <= currentCD.Tracks.Count)
{
currentCD.Tracks[i_track - 1].Title += str;
}
}
break;
// DiscID
case 0x06:
if (i_track == 0)
{
currentCD.DiscID += str;
}
break;
// Artist
case 0x01:
if (i_track == 0)
{
currentCD.Artist += str;
}
break;
// Message
case 0x05:
if (i_track == 0)
{
currentCD.Message += str;
}
break;
// Genre
case 0x07:
if (i_track == 0)
{
currentCD.Genre += str;
}
break;
// ISRC
case 0x0E:
if (i_track == 0)
{
currentCD.ISrc += str;
}
else
{
if (i_track == currentCD.Tracks.Count + 1)
{
CDTrackMetadata t = new CDTrackMetadata()
{
Number = i_track, Title = string.Empty, ISrc = string.Empty, FirstSector = 0, LastSector = 0, Duration = TimeSpan.FromSeconds(0)
};
if ((i_track - 1) < currentCD.Tracks.Count)
{
currentCD.Tracks[i_track - 1] = t;
}
else
{
currentCD.Tracks.Add(t);
}
}
if (i_track <= currentCD.Tracks.Count)
{
currentCD.Tracks[i_track - 1].ISrc += str;
}
}
break;
default:
break;
}
}
// System.Diagnostics.Debug.WriteLine("Track: " + i_track.ToString() + " Type: " + (i_pack_type - 0x80).ToString() + " Text: " + str);
i_track++;
l = -1;
}
}
indexTrack += k;
i_track_last = (i_track_last > i_track ? i_track_last : i_track);
i_track++;
indexTrack += 1 + 12;
}
}
System.Diagnostics.Debug.WriteLine("Title: " + currentCD.AlbumTitle + " Artist: " + currentCD.Artist + " DiscID: " + currentCD.DiscID + " ISrc: " + currentCD.ISrc);
for (int l = 0; l < currentCD.Tracks.Count; l++)
{
System.Diagnostics.Debug.WriteLine("Track : " + currentCD.Tracks[l].Number.ToString() + " Title: " + currentCD.Tracks[l].Title + "Duration: " + currentCD.Tracks[l].Duration.ToString() + " ISRC: " + currentCD.Tracks[l].ISrc);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Exception while parsing CD Text Array : " + ex.Message);
currentCD = null;
}
return(currentCD);
}