public static string GetTrackIsrc(SafeFileHandle hDevice, byte track)
{
var req = new SubChannelRequest {
Format = MMC.SubChannelRequestFormat.ISRC, Track = track
};
var reqlen = Util.SizeOfStructure <SubChannelRequest>();
var isrclen = Util.SizeOfStructure <MMC.SubChannelISRC>();
if (!NativeApi.DeviceIoControl(hDevice, IOCTL.CDROM_READ_Q_CHANNEL, ref req, reqlen, out MMC.SubChannelISRC isrc, isrclen, out int _, IntPtr.Zero))
{
throw new IOException($"Failed to retrieve ISRC for track {track}.", new Win32Exception(Marshal.GetLastWin32Error()));
}
isrc.FixUp();
return(isrc.Status.IsValid ? Encoding.ASCII.GetString(isrc.ISRC) : string.Empty);
}
public static string GetMediaCatalogNumber(SafeFileHandle hDevice)
{
var req = new SubChannelRequest {
Format = MMC.SubChannelRequestFormat.MediaCatalogNumber, Track = 0
};
var reqlen = Util.SizeOfStructure <SubChannelRequest>();
var mcnlen = Util.SizeOfStructure <MMC.SubChannelMediaCatalogNumber>();
if (!NativeApi.DeviceIoControl(hDevice, IOCTL.CDROM_READ_Q_CHANNEL, ref req, reqlen, out MMC.SubChannelMediaCatalogNumber mcn, mcnlen, out int _, IntPtr.Zero))
{
throw new IOException("Failed to retrieve media catalog number.", new Win32Exception(Marshal.GetLastWin32Error()));
}
mcn.FixUp();
return(mcn.Status.IsValid ? Encoding.ASCII.GetString(mcn.MCN) : string.Empty);
}
private static extern bool DeviceIoControl(SafeFileHandle hDevice, IOCTL command, ref SubChannelRequest request, int requestSize, out MMC.SubChannelISRC data, int dataSize, out int pBytesReturned, IntPtr overlapped);