/// <summary>
/// Pres the buffer next.
/// </summary>
private void PreBufferNext()
{
var errorCount = 0;
while (preBuffered.Count < prebufferSongs.Value)
{
var next = playlistService.Next();
if (null == next)
{
break;
}
var container = new TrackContainer(player, next);
try { container.Preload(); }
catch (Exception e)
{
container.Dispose();
++errorCount;
LogException(e, MethodBase.GetCurrentMethod());
LogWarning("File Was: {0}", container.File.Filename);
if (errorCount >= 50)
{
LogCritical("Too many errors while prebuffering, giving up...");
break;
}
continue;
}
preBuffered.Add(container);
LogInformation("PlayerService has {0} files PreBuffered", preBuffered.Count);
}
}
public virtual void Play(ITrack track)
{
var oldCurrent = CurrentTrack;
var newChannel = new TrackContainer(track);
try
{
newChannel.Preload();
}
catch (Exception e)
{
newChannel.Dispose();
LogException(e, MethodBase.GetCurrentMethod());
LogWarning("Track Was: {0}", track);
return;
}
SwapChannels(newChannel);
if (null != oldCurrent)
{
PushContainer(oldCurrent);
}
playlistService.SetPlaylistIndex(null);
ReBuffer();
}
/// <summary>
/// Plays this instance.
/// </summary>
/// <param name="file"></param>
public virtual void Play(StorableTaggedFile file)
{
file.Guard("file");
var oldCurrent = CurrentTrack;
var newChannel = new TrackContainer(player, file);
try
{
newChannel.Preload();
}
catch (Exception e)
{
newChannel.Dispose();
LogException(e, MethodBase.GetCurrentMethod());
LogWarning("File Was: {0}", file.Filename);
return;
}
SwapChannels(newChannel);
if (null != oldCurrent)
{
PushContainer(oldCurrent);
}
var index = playlistService.Files.IndexOf(file);
if (index < 0)
{
return;
}
playlistService.SetPlaylistIndex(file);
ReBuffer();
}
protected virtual void SetActive(StorableTaggedFile file, double offset)
{
var container = GetContainer(file);
if (null == container)
{
return;
}
CurrentTrack = container;
container.Seek(offset);
NotifyNewTrack(container);
SendProgress();
}
private TrackContainer GetContainer(StorableTaggedFile file)
{
var channel = new TrackContainer(player, file);
try
{
channel.Preload();
}
catch
{
return(null);
}
return(channel);
}
/// <summary>
/// Pushes the current.
/// </summary>
private void PushContainer(TrackContainer container)
{
if (null == CurrentTrack)
{
return;
}
if (backStack.Count >= maxBackStack.Value)
{
for (var i = 0; i < 100 / maxBackStack.Value * 10; ++i)
{
backStack.RemoveAt(0);
}
}
TrimBackBuffered();
backStack.Add(container);
}
/// <summary>
/// Swaps the channels.
/// </summary>
/// <param name="nextTrack">The next channel.</param>
/// <returns></returns>
private bool SwapChannels(TrackContainer nextTrack)
{
try { nextTrack.Play(0f); }
catch (Exception e)
{
nextTrack.Dispose();
LogException(e, MethodBase.GetCurrentMethod());
return(false);
}
if (null != CurrentTrack)
{
CrossFade(CurrentTrack, nextTrack);
}
else
{
FadeIn(nextTrack);
}
CurrentTrack = nextTrack;
NotifyNewTrack(CurrentTrack);
UpdateState();
return(true);
}
/// <summary>
/// Notifies the new track.
/// </summary>
/// <param name="file">The file.</param>
private void NotifyNewTrack(TrackContainer file)
{
publicTransport.ApplicationEventBus.Send(new TrackChangedEvent(file.File, file.Length));
}
