530 lines
18 KiB
C#
530 lines
18 KiB
C#
using MediaBrowser.Common.Net;
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using MediaBrowser.Controller;
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using MediaBrowser.Controller.Dlna;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Controller.Session;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Session;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Dlna.PlayTo
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{
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public class PlayToController : ISessionController, IDisposable
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{
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private Device _device;
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private BaseItem _currentItem = null;
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private readonly SessionInfo _session;
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private readonly ISessionManager _sessionManager;
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private readonly IItemRepository _itemRepository;
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private readonly ILibraryManager _libraryManager;
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private readonly INetworkManager _networkManager;
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private readonly ILogger _logger;
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private readonly IDlnaManager _dlnaManager;
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private readonly IUserManager _userManager;
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private readonly IServerApplicationHost _appHost;
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private bool _playbackStarted = false;
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private const int UpdateTimerIntervalMs = 1000;
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public bool SupportsMediaRemoteControl
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{
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get { return true; }
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}
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public bool IsSessionActive
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{
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get
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{
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if (_device == null || _device.UpdateTime == default(DateTime))
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return false;
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return DateTime.UtcNow <= _device.UpdateTime.AddSeconds(30);
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}
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}
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public PlayToController(SessionInfo session, ISessionManager sessionManager, IItemRepository itemRepository, ILibraryManager libraryManager, ILogger logger, INetworkManager networkManager, IDlnaManager dlnaManager, IUserManager userManager, IServerApplicationHost appHost)
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{
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_session = session;
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_itemRepository = itemRepository;
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_sessionManager = sessionManager;
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_libraryManager = libraryManager;
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_networkManager = networkManager;
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_dlnaManager = dlnaManager;
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_userManager = userManager;
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_appHost = appHost;
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_logger = logger;
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}
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public void Init(Device device)
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{
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_device = device;
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_device.PlaybackChanged += Device_PlaybackChanged;
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_device.CurrentIdChanged += Device_CurrentIdChanged;
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_device.Start();
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_updateTimer = new Timer(updateTimer_Elapsed, null, UpdateTimerIntervalMs, UpdateTimerIntervalMs);
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}
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#region Device EventHandlers & Update Timer
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Timer _updateTimer;
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async void Device_PlaybackChanged(object sender, TransportStateEventArgs e)
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{
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if (_currentItem == null)
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return;
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if (e.Stopped == false)
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await ReportProgress().ConfigureAwait(false);
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else if (e.Stopped && _playbackStarted)
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{
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_playbackStarted = false;
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await _sessionManager.OnPlaybackStopped(new Controller.Session.PlaybackStopInfo
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{
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Item = _currentItem,
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SessionId = _session.Id,
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PositionTicks = _device.Position.Ticks
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}).ConfigureAwait(false);
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await SetNext().ConfigureAwait(false);
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}
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}
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async void Device_CurrentIdChanged(object sender, CurrentIdEventArgs e)
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{
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if (e.Id != Guid.Empty)
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{
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if (_currentItem != null && _currentItem.Id == e.Id)
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{
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return;
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}
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var item = _libraryManager.GetItemById(e.Id);
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if (item != null)
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{
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_logger.Debug("{0} - CurrentId {1}", _session.DeviceName, item.Id);
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_currentItem = item;
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_playbackStarted = false;
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await ReportProgress().ConfigureAwait(false);
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}
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}
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}
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/// <summary>
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/// Handles the Elapsed event of the updateTimer control.
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/// </summary>
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/// <param name="state">The state.</param>
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private async void updateTimer_Elapsed(object state)
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{
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if (_disposed)
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return;
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if (IsSessionActive)
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{
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await ReportProgress().ConfigureAwait(false);
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}
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else
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{
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_updateTimer.Change(Timeout.Infinite, Timeout.Infinite);
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//Session is inactive, mark it for Disposal and don't start the elapsed timer.
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await _sessionManager.ReportSessionEnded(_session.Id);
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}
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}
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/// <summary>
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/// Reports the playback progress.
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/// </summary>
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/// <returns></returns>
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private async Task ReportProgress()
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{
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if (_currentItem == null || _device.IsStopped)
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return;
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if (!_playbackStarted)
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{
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await _sessionManager.OnPlaybackStart(new PlaybackInfo { Item = _currentItem, SessionId = _session.Id, CanSeek = true, QueueableMediaTypes = new List<string> { "Audio", "Video" } }).ConfigureAwait(false);
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_playbackStarted = true;
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}
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if ((_device.IsPlaying || _device.IsPaused))
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{
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var playlistItem = Playlist.FirstOrDefault(p => p.PlayState == 1);
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if (playlistItem != null && playlistItem.Transcode)
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{
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await _sessionManager.OnPlaybackProgress(new Controller.Session.PlaybackProgressInfo
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{
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Item = _currentItem,
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SessionId = _session.Id,
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PositionTicks = _device.Position.Ticks + playlistItem.StartPositionTicks,
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IsMuted = _device.IsMuted,
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IsPaused = _device.IsPaused
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}).ConfigureAwait(false);
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}
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else if (_currentItem != null)
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{
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await _sessionManager.OnPlaybackProgress(new Controller.Session.PlaybackProgressInfo
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{
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Item = _currentItem,
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SessionId = _session.Id,
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PositionTicks = _device.Position.Ticks,
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IsMuted = _device.IsMuted,
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IsPaused = _device.IsPaused
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}).ConfigureAwait(false);
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}
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}
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}
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#endregion
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#region SendCommands
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public async Task SendPlayCommand(PlayRequest command, CancellationToken cancellationToken)
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{
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_logger.Debug("{0} - Received PlayRequest: {1}", this._session.DeviceName, command.PlayCommand);
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var items = new List<BaseItem>();
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foreach (string id in command.ItemIds)
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{
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AddItemFromId(Guid.Parse(id), items);
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}
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var playlist = new List<PlaylistItem>();
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var isFirst = true;
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var serverAddress = GetServerAddress();
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foreach (var item in items)
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{
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if (isFirst && command.StartPositionTicks.HasValue)
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{
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playlist.Add(CreatePlaylistItem(item, command.StartPositionTicks.Value, serverAddress));
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isFirst = false;
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}
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else
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{
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playlist.Add(CreatePlaylistItem(item, 0, serverAddress));
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}
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}
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_logger.Debug("{0} - Playlist created", _session.DeviceName);
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if (command.PlayCommand == PlayCommand.PlayLast)
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{
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AddItemsToPlaylist(playlist);
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}
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if (command.PlayCommand == PlayCommand.PlayNext)
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{
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AddItemsToPlaylist(playlist);
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}
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_logger.Debug("{0} - Playing {1} items", _session.DeviceName, playlist.Count);
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if (!string.IsNullOrWhiteSpace(command.ControllingUserId))
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{
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var userId = new Guid(command.ControllingUserId);
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var user = _userManager.GetUserById(userId);
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await _sessionManager.LogSessionActivity(_session.Client, _session.ApplicationVersion, _session.DeviceId,
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_session.DeviceName, _session.RemoteEndPoint, user).ConfigureAwait(false);
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}
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await PlayItems(playlist).ConfigureAwait(false);
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}
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public Task SendPlaystateCommand(PlaystateRequest command, CancellationToken cancellationToken)
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{
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switch (command.Command)
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{
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case PlaystateCommand.Stop:
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Playlist.Clear();
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return _device.SetStop();
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case PlaystateCommand.Pause:
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return _device.SetPause();
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case PlaystateCommand.Unpause:
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return _device.SetPlay();
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case PlaystateCommand.Seek:
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var playlistItem = Playlist.FirstOrDefault(p => p.PlayState == 1);
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if (playlistItem != null && playlistItem.Transcode && playlistItem.MediaType == DlnaProfileType.Video && _currentItem != null)
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{
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var newItem = CreatePlaylistItem(_currentItem, command.SeekPositionTicks ?? 0, GetServerAddress());
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playlistItem.StartPositionTicks = newItem.StartPositionTicks;
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playlistItem.StreamUrl = newItem.StreamUrl;
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playlistItem.Didl = newItem.Didl;
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return _device.SetAvTransport(playlistItem.StreamUrl, playlistItem.DlnaHeaders, playlistItem.Didl);
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}
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return _device.Seek(TimeSpan.FromTicks(command.SeekPositionTicks ?? 0));
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case PlaystateCommand.NextTrack:
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_currentItem = null;
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return SetNext();
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case PlaystateCommand.PreviousTrack:
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_currentItem = null;
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return SetPrevious();
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}
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return Task.FromResult(true);
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}
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public Task SendSystemCommand(SystemCommand command, CancellationToken cancellationToken)
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{
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switch (command)
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{
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case SystemCommand.VolumeDown:
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return _device.VolumeDown();
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case SystemCommand.VolumeUp:
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return _device.VolumeUp();
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case SystemCommand.Mute:
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return _device.VolumeDown(true);
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case SystemCommand.Unmute:
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return _device.VolumeUp(true);
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case SystemCommand.ToggleMute:
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return _device.ToggleMute();
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default:
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return Task.FromResult(true);
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}
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}
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public Task SendUserDataChangeInfo(UserDataChangeInfo info, CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendRestartRequiredNotification(CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendServerRestartNotification(CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendServerShutdownNotification(CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendBrowseCommand(BrowseRequest command, CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendLibraryUpdateInfo(LibraryUpdateInfo info, CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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public Task SendMessageCommand(MessageCommand command, CancellationToken cancellationToken)
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{
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return Task.FromResult(true);
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}
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#endregion
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#region Playlist
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private List<PlaylistItem> _playlist = new List<PlaylistItem>();
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private List<PlaylistItem> Playlist
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{
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get
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{
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return _playlist;
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}
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set
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{
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_playlist = value;
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}
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}
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private void AddItemFromId(Guid id, List<BaseItem> list)
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{
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var item = _libraryManager.GetItemById(id);
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if (item.IsFolder)
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{
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foreach (var childId in _itemRepository.GetChildren(item.Id))
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{
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AddItemFromId(childId, list);
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}
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}
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else
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{
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if (item.MediaType == MediaType.Audio || item.MediaType == MediaType.Video)
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{
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list.Add(item);
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}
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}
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}
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private string GetServerAddress()
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{
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return string.Format("{0}://{1}:{2}/mediabrowser",
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"http",
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_networkManager.GetLocalIpAddresses().FirstOrDefault() ?? "localhost",
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_appHost.HttpServerPort
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);
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}
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private PlaylistItem CreatePlaylistItem(BaseItem item, long startPostionTicks, string serverAddress)
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{
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var streams = _itemRepository.GetMediaStreams(new MediaStreamQuery { ItemId = item.Id }).ToList();
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var deviceInfo = _device.Properties;
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var playlistItem = GetPlaylistItem(item, _dlnaManager.GetProfile(deviceInfo.ToDeviceIdentification()));
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playlistItem.StartPositionTicks = startPostionTicks;
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if (playlistItem.MediaType == DlnaProfileType.Audio)
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{
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playlistItem.StreamUrl = StreamHelper.GetAudioUrl(playlistItem, serverAddress);
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}
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else
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{
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playlistItem.StreamUrl = StreamHelper.GetVideoUrl(_device.Properties, playlistItem, streams, serverAddress);
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}
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var didl = DidlBuilder.Build(item, _session.UserId.ToString(), serverAddress, playlistItem.StreamUrl, streams);
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playlistItem.Didl = didl;
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var header = StreamHelper.GetDlnaHeaders(playlistItem);
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playlistItem.DlnaHeaders = header;
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return playlistItem;
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}
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private PlaylistItem GetPlaylistItem(BaseItem item, DeviceProfile profile)
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{
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var video = item as Video;
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if (video != null)
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{
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return new PlaylistItemFactory(_itemRepository).Create(video, profile);
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}
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var audio = item as Audio;
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if (audio != null)
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{
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return new PlaylistItemFactory(_itemRepository).Create(audio, profile);
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}
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var photo = item as Photo;
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if (photo != null)
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{
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return new PlaylistItemFactory(_itemRepository).Create(photo, profile);
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}
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throw new ArgumentException("Unrecognized item type.");
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}
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/// <summary>
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/// Plays the items.
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/// </summary>
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/// <param name="items">The items.</param>
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/// <returns></returns>
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private async Task<bool> PlayItems(IEnumerable<PlaylistItem> items)
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{
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Playlist.Clear();
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Playlist.AddRange(items);
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await SetNext();
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return true;
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}
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/// <summary>
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/// Adds the items to playlist.
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/// </summary>
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/// <param name="items">The items.</param>
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private void AddItemsToPlaylist(IEnumerable<PlaylistItem> items)
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{
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Playlist.AddRange(items);
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}
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private async Task<bool> SetNext()
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{
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if (!Playlist.Any() || Playlist.All(i => i.PlayState != 0))
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{
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return true;
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}
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var currentitem = Playlist.FirstOrDefault(i => i.PlayState == 1);
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if (currentitem != null)
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{
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currentitem.PlayState = 2;
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}
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var nextTrack = Playlist.FirstOrDefault(i => i.PlayState == 0);
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if (nextTrack == null)
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{
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await _device.SetStop();
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return true;
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}
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nextTrack.PlayState = 1;
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_logger.Debug("{0} - SetAvTransport Uri: {1} DlnaHeaders: {2}", _device.Properties.Name, nextTrack.StreamUrl, nextTrack.DlnaHeaders);
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await _device.SetAvTransport(nextTrack.StreamUrl, nextTrack.DlnaHeaders, nextTrack.Didl);
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if (nextTrack.StartPositionTicks > 0 && !nextTrack.Transcode)
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await _device.Seek(TimeSpan.FromTicks(nextTrack.StartPositionTicks));
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return true;
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}
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public Task<bool> SetPrevious()
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{
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if (!Playlist.Any() || Playlist.All(i => i.PlayState != 2))
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return Task.FromResult(false);
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var currentitem = Playlist.FirstOrDefault(i => i.PlayState == 1);
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var prevTrack = Playlist.LastOrDefault(i => i.PlayState == 2);
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if (currentitem != null)
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{
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currentitem.PlayState = 0;
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}
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if (prevTrack == null)
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return Task.FromResult(false);
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prevTrack.PlayState = 1;
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return _device.SetAvTransport(prevTrack.StreamUrl, prevTrack.DlnaHeaders, prevTrack.Didl);
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}
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#endregion
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private bool _disposed;
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public void Dispose()
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{
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if (!_disposed)
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{
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_disposed = true;
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_updateTimer.Dispose();
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_device.Dispose();
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_logger.Log(LogSeverity.Debug, "Controller disposed");
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}
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}
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}
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}
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