/// <summary>
/// 次のストリームを準備する
/// </summary>
private static bool PrepareNextStream(int index, List <KeyValuePair <string, object> > tags = null)
{
lock (PrepareMutex)
{
LastPreparedIndex = index;
if (PreparedStream != null)
{
return(false);
}
if (index == -1)
{
PreparedStream = new StopperInputStream();
return(true);
}
if (index >= CurrentPlaylistRows || index < 0)
{
return(false);
}
object[] row = Controller.GetPlaylistRow(index);
string filename = (string)row[Controller.GetColumnIndexByName(LibraryDBColumnTextMinimum.file_name)];
try
{
int tr = Util.Util.GetTrackNumberInt(row[Controller.GetColumnIndexByName("tagTracknumber")].ToString(), 1);
PullSoundStreamBase nextStream = DecodeStreamFactory.CreateFileStream(filename, tr, MyCoreComponent.UsePrescan, tags);
if (nextStream == null)
{
return(false);
}
if (nextStream.Chans == 1)
{
nextStream = new Mono2StereoFilter(nextStream);
}
//if (nextStream.Freq == 96000)
//{
// nextStream = new FreqConvertFilter(nextStream);
//}
// prepareにsyncを設定
var inStream = new InputStream(nextStream, row);
inStream.Ready = !OutputDeviceFactory.RebuildRequired(OutputDevice, nextStream.Freq, nextStream.Chans, true);
inStream.SetEvent(on80Percent, nextStream.LengthSec * 0.80);
inStream.SetEvent(onPreFinish, Math.Max(nextStream.LengthSec * 0.90, nextStream.LengthSec - 5));
PreparedStream = inStream;
}
catch (Exception e)
{
Logger.Log(e.ToString());
return(false);
}
}
return(true);
}
internal static Boolean QueuePlaylistItem(int index)
{
lock (PrepareMutex)
{
DisposePreparedStream();
switch (index)
{
case QUEUE_CLEAR:
return(true);
case QUEUE_STOP:
PreparedStream = new StopperInputStream();
return(true);
default:
return(PrepareNextStream(index));
}
}
}