jellyfin-server/Emby.Dlna/PlayTo/PlayToController.cs
2021-03-22 22:34:47 +01:00

960 lines
35 KiB
C#

#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Emby.Dlna.Didl;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Events;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.Session;
using Microsoft.AspNetCore.WebUtilities;
using Microsoft.Extensions.Logging;
using Photo = MediaBrowser.Controller.Entities.Photo;
namespace Emby.Dlna.PlayTo
{
public class PlayToController : ISessionController, IDisposable
{
private static readonly CultureInfo _usCulture = CultureInfo.ReadOnly(new CultureInfo("en-US"));
private readonly SessionInfo _session;
private readonly ISessionManager _sessionManager;
private readonly ILibraryManager _libraryManager;
private readonly ILogger _logger;
private readonly IDlnaManager _dlnaManager;
private readonly IUserManager _userManager;
private readonly IImageProcessor _imageProcessor;
private readonly IUserDataManager _userDataManager;
private readonly ILocalizationManager _localization;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IDeviceDiscovery _deviceDiscovery;
private readonly string _serverAddress;
private readonly string _accessToken;
private readonly List<PlaylistItem> _playlist = new List<PlaylistItem>();
private Device _device;
private int _currentPlaylistIndex;
private bool _disposed;
public PlayToController(
SessionInfo session,
ISessionManager sessionManager,
ILibraryManager libraryManager,
ILogger logger,
IDlnaManager dlnaManager,
IUserManager userManager,
IImageProcessor imageProcessor,
string serverAddress,
string accessToken,
IDeviceDiscovery deviceDiscovery,
IUserDataManager userDataManager,
ILocalizationManager localization,
IMediaSourceManager mediaSourceManager,
IMediaEncoder mediaEncoder)
{
_session = session;
_sessionManager = sessionManager;
_libraryManager = libraryManager;
_logger = logger;
_dlnaManager = dlnaManager;
_userManager = userManager;
_imageProcessor = imageProcessor;
_serverAddress = serverAddress;
_accessToken = accessToken;
_deviceDiscovery = deviceDiscovery;
_userDataManager = userDataManager;
_localization = localization;
_mediaSourceManager = mediaSourceManager;
_mediaEncoder = mediaEncoder;
}
public bool IsSessionActive => !_disposed && _device != null;
public bool SupportsMediaControl => IsSessionActive;
public void Init(Device device)
{
_device = device;
_device.OnDeviceUnavailable = OnDeviceUnavailable;
_device.PlaybackStart += OnDevicePlaybackStart;
_device.PlaybackProgress += OnDevicePlaybackProgress;
_device.PlaybackStopped += OnDevicePlaybackStopped;
_device.MediaChanged += OnDeviceMediaChanged;
_device.Start();
_deviceDiscovery.DeviceLeft += OnDeviceDiscoveryDeviceLeft;
}
private void OnDeviceUnavailable()
{
try
{
_sessionManager.ReportSessionEnded(_session.Id);
}
catch (Exception ex)
{
// Could throw if the session is already gone
_logger.LogError(ex, "Error reporting the end of session {Id}", _session.Id);
}
}
private void OnDeviceDiscoveryDeviceLeft(object sender, GenericEventArgs<UpnpDeviceInfo> e)
{
var info = e.Argument;
if (!_disposed
&& info.Headers.TryGetValue("USN", out string usn)
&& usn.IndexOf(_device.Properties.UUID, StringComparison.OrdinalIgnoreCase) != -1
&& (usn.IndexOf("MediaRenderer:", StringComparison.OrdinalIgnoreCase) != -1
|| (info.Headers.TryGetValue("NT", out string nt)
&& nt.IndexOf("MediaRenderer:", StringComparison.OrdinalIgnoreCase) != -1)))
{
OnDeviceUnavailable();
}
}
private async void OnDeviceMediaChanged(object sender, MediaChangedEventArgs e)
{
if (_disposed || string.IsNullOrEmpty(e.OldMediaInfo.Url))
{
return;
}
try
{
var streamInfo = StreamParams.ParseFromUrl(e.OldMediaInfo.Url, _libraryManager, _mediaSourceManager);
if (streamInfo.Item != null)
{
var positionTicks = GetProgressPositionTicks(streamInfo);
await ReportPlaybackStopped(streamInfo, positionTicks).ConfigureAwait(false);
}
streamInfo = StreamParams.ParseFromUrl(e.NewMediaInfo.Url, _libraryManager, _mediaSourceManager);
if (streamInfo.Item == null)
{
return;
}
var newItemProgress = GetProgressInfo(streamInfo);
await _sessionManager.OnPlaybackStart(newItemProgress).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reporting progress");
}
}
private async void OnDevicePlaybackStopped(object sender, PlaybackStoppedEventArgs e)
{
if (_disposed)
{
return;
}
try
{
var streamInfo = StreamParams.ParseFromUrl(e.MediaInfo.Url, _libraryManager, _mediaSourceManager);
if (streamInfo.Item == null)
{
return;
}
var positionTicks = GetProgressPositionTicks(streamInfo);
await ReportPlaybackStopped(streamInfo, positionTicks).ConfigureAwait(false);
var mediaSource = await streamInfo.GetMediaSource(CancellationToken.None).ConfigureAwait(false);
var duration = mediaSource == null ?
(_device.Duration == null ? (long?)null : _device.Duration.Value.Ticks) :
mediaSource.RunTimeTicks;
var playedToCompletion = positionTicks.HasValue && positionTicks.Value == 0;
if (!playedToCompletion && duration.HasValue && positionTicks.HasValue)
{
double percent = positionTicks.Value;
percent /= duration.Value;
playedToCompletion = Math.Abs(1 - percent) <= .1;
}
if (playedToCompletion)
{
await SetPlaylistIndex(_currentPlaylistIndex + 1).ConfigureAwait(false);
}
else
{
_playlist.Clear();
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reporting playback stopped");
}
}
private async Task ReportPlaybackStopped(StreamParams streamInfo, long? positionTicks)
{
try
{
await _sessionManager.OnPlaybackStopped(new PlaybackStopInfo
{
ItemId = streamInfo.ItemId,
SessionId = _session.Id,
PositionTicks = positionTicks,
MediaSourceId = streamInfo.MediaSourceId
}).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reporting progress");
}
}
private async void OnDevicePlaybackStart(object sender, PlaybackStartEventArgs e)
{
if (_disposed)
{
return;
}
try
{
var info = StreamParams.ParseFromUrl(e.MediaInfo.Url, _libraryManager, _mediaSourceManager);
if (info.Item != null)
{
var progress = GetProgressInfo(info);
await _sessionManager.OnPlaybackStart(progress).ConfigureAwait(false);
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reporting progress");
}
}
private async void OnDevicePlaybackProgress(object sender, PlaybackProgressEventArgs e)
{
if (_disposed)
{
return;
}
try
{
var mediaUrl = e.MediaInfo.Url;
if (string.IsNullOrWhiteSpace(mediaUrl))
{
return;
}
var info = StreamParams.ParseFromUrl(mediaUrl, _libraryManager, _mediaSourceManager);
if (info.Item != null)
{
var progress = GetProgressInfo(info);
await _sessionManager.OnPlaybackProgress(progress).ConfigureAwait(false);
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reporting progress");
}
}
private long? GetProgressPositionTicks(StreamParams info)
{
var ticks = _device.Position.Ticks;
if (!EnableClientSideSeek(info))
{
ticks += info.StartPositionTicks;
}
return ticks;
}
private PlaybackStartInfo GetProgressInfo(StreamParams info)
{
return new PlaybackStartInfo
{
ItemId = info.ItemId,
SessionId = _session.Id,
PositionTicks = GetProgressPositionTicks(info),
IsMuted = _device.IsMuted,
IsPaused = _device.IsPaused,
MediaSourceId = info.MediaSourceId,
AudioStreamIndex = info.AudioStreamIndex,
SubtitleStreamIndex = info.SubtitleStreamIndex,
VolumeLevel = _device.Volume,
// TODO
CanSeek = true,
PlayMethod = info.IsDirectStream ? PlayMethod.DirectStream : PlayMethod.Transcode
};
}
public Task SendPlayCommand(PlayRequest command, CancellationToken cancellationToken)
{
_logger.LogDebug("{0} - Received PlayRequest: {1}", _session.DeviceName, command.PlayCommand);
var user = command.ControllingUserId.Equals(Guid.Empty) ? null : _userManager.GetUserById(command.ControllingUserId);
var items = new List<BaseItem>();
foreach (var id in command.ItemIds)
{
AddItemFromId(id, items);
}
var startIndex = command.StartIndex ?? 0;
int len = items.Count - startIndex;
if (startIndex > 0)
{
items = items.GetRange(startIndex, len);
}
var playlist = new PlaylistItem[len];
// Not nullable enabled - so this is required.
playlist[0] = CreatePlaylistItem(
items[0],
user,
command.StartPositionTicks ?? 0,
command.MediaSourceId ?? string.Empty,
command.AudioStreamIndex,
command.SubtitleStreamIndex);
for (int i = 1; i < len; i++)
{
playlist[i] = CreatePlaylistItem(items[i], user, 0, string.Empty, null, null);
}
_logger.LogDebug("{0} - Playlist created", _session.DeviceName);
if (command.PlayCommand == PlayCommand.PlayLast)
{
_playlist.AddRange(playlist);
}
if (command.PlayCommand == PlayCommand.PlayNext)
{
_playlist.AddRange(playlist);
}
if (!command.ControllingUserId.Equals(Guid.Empty))
{
_sessionManager.LogSessionActivity(
_session.Client,
_session.ApplicationVersion,
_session.DeviceId,
_session.DeviceName,
_session.RemoteEndPoint,
user);
}
return PlayItems(playlist, cancellationToken);
}
private Task SendPlaystateCommand(PlaystateRequest command, CancellationToken cancellationToken)
{
switch (command.Command)
{
case PlaystateCommand.Stop:
_playlist.Clear();
return _device.SetStop(CancellationToken.None);
case PlaystateCommand.Pause:
return _device.SetPause(CancellationToken.None);
case PlaystateCommand.Unpause:
return _device.SetPlay(CancellationToken.None);
case PlaystateCommand.PlayPause:
return _device.IsPaused ? _device.SetPlay(CancellationToken.None) : _device.SetPause(CancellationToken.None);
case PlaystateCommand.Seek:
return Seek(command.SeekPositionTicks ?? 0);
case PlaystateCommand.NextTrack:
return SetPlaylistIndex(_currentPlaylistIndex + 1, cancellationToken);
case PlaystateCommand.PreviousTrack:
return SetPlaylistIndex(_currentPlaylistIndex - 1, cancellationToken);
}
return Task.CompletedTask;
}
private async Task Seek(long newPosition)
{
var media = _device.CurrentMediaInfo;
if (media != null)
{
var info = StreamParams.ParseFromUrl(media.Url, _libraryManager, _mediaSourceManager);
if (info.Item != null && !EnableClientSideSeek(info))
{
var user = !_session.UserId.Equals(Guid.Empty) ? _userManager.GetUserById(_session.UserId) : null;
var newItem = CreatePlaylistItem(info.Item, user, newPosition, info.MediaSourceId, info.AudioStreamIndex, info.SubtitleStreamIndex);
await _device.SetAvTransport(newItem.StreamUrl, GetDlnaHeaders(newItem), newItem.Didl, CancellationToken.None).ConfigureAwait(false);
return;
}
await SeekAfterTransportChange(newPosition, CancellationToken.None).ConfigureAwait(false);
}
}
private bool EnableClientSideSeek(StreamParams info)
{
return info.IsDirectStream;
}
private bool EnableClientSideSeek(StreamInfo info)
{
return info.IsDirectStream;
}
private void AddItemFromId(Guid id, List<BaseItem> list)
{
var item = _libraryManager.GetItemById(id);
if (item.MediaType == MediaType.Audio || item.MediaType == MediaType.Video)
{
list.Add(item);
}
}
private PlaylistItem CreatePlaylistItem(
BaseItem item,
User user,
long startPostionTicks,
string mediaSourceId,
int? audioStreamIndex,
int? subtitleStreamIndex)
{
var deviceInfo = _device.Properties;
var profile = _dlnaManager.GetProfile(deviceInfo.ToDeviceIdentification()) ??
_dlnaManager.GetDefaultProfile();
var mediaSources = item is IHasMediaSources
? _mediaSourceManager.GetStaticMediaSources(item, true, user).ToArray()
: Array.Empty<MediaSourceInfo>();
var playlistItem = GetPlaylistItem(item, mediaSources, profile, _session.DeviceId, mediaSourceId, audioStreamIndex, subtitleStreamIndex);
playlistItem.StreamInfo.StartPositionTicks = startPostionTicks;
playlistItem.StreamUrl = DidlBuilder.NormalizeDlnaMediaUrl(playlistItem.StreamInfo.ToUrl(_serverAddress, _accessToken));
var itemXml = new DidlBuilder(
profile,
user,
_imageProcessor,
_serverAddress,
_accessToken,
_userDataManager,
_localization,
_mediaSourceManager,
_logger,
_mediaEncoder,
_libraryManager)
.GetItemDidl(item, user, null, _session.DeviceId, new Filter(), playlistItem.StreamInfo);
playlistItem.Didl = itemXml;
return playlistItem;
}
private string GetDlnaHeaders(PlaylistItem item)
{
var profile = item.Profile;
var streamInfo = item.StreamInfo;
if (streamInfo.MediaType == DlnaProfileType.Audio)
{
return new ContentFeatureBuilder(profile)
.BuildAudioHeader(
streamInfo.Container,
streamInfo.TargetAudioCodec.FirstOrDefault(),
streamInfo.TargetAudioBitrate,
streamInfo.TargetAudioSampleRate,
streamInfo.TargetAudioChannels,
streamInfo.TargetAudioBitDepth,
streamInfo.IsDirectStream,
streamInfo.RunTimeTicks ?? 0,
streamInfo.TranscodeSeekInfo);
}
if (streamInfo.MediaType == DlnaProfileType.Video)
{
var list = new ContentFeatureBuilder(profile)
.BuildVideoHeader(
streamInfo.Container,
streamInfo.TargetVideoCodec.FirstOrDefault(),
streamInfo.TargetAudioCodec.FirstOrDefault(),
streamInfo.TargetWidth,
streamInfo.TargetHeight,
streamInfo.TargetVideoBitDepth,
streamInfo.TargetVideoBitrate,
streamInfo.TargetTimestamp,
streamInfo.IsDirectStream,
streamInfo.RunTimeTicks ?? 0,
streamInfo.TargetVideoProfile,
streamInfo.TargetVideoLevel,
streamInfo.TargetFramerate ?? 0,
streamInfo.TargetPacketLength,
streamInfo.TranscodeSeekInfo,
streamInfo.IsTargetAnamorphic,
streamInfo.IsTargetInterlaced,
streamInfo.TargetRefFrames,
streamInfo.TargetVideoStreamCount,
streamInfo.TargetAudioStreamCount,
streamInfo.TargetVideoCodecTag,
streamInfo.IsTargetAVC);
return list.Count == 0 ? null : list[0];
}
return null;
}
private PlaylistItem GetPlaylistItem(BaseItem item, MediaSourceInfo[] mediaSources, DeviceProfile profile, string deviceId, string mediaSourceId, int? audioStreamIndex, int? subtitleStreamIndex)
{
if (string.Equals(item.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase))
{
return new PlaylistItem
{
StreamInfo = new StreamBuilder(_mediaEncoder, _logger).BuildVideoItem(new VideoOptions
{
ItemId = item.Id,
MediaSources = mediaSources,
Profile = profile,
DeviceId = deviceId,
MaxBitrate = profile.MaxStreamingBitrate,
MediaSourceId = mediaSourceId,
AudioStreamIndex = audioStreamIndex,
SubtitleStreamIndex = subtitleStreamIndex
}),
Profile = profile
};
}
if (string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase))
{
return new PlaylistItem
{
StreamInfo = new StreamBuilder(_mediaEncoder, _logger).BuildAudioItem(new AudioOptions
{
ItemId = item.Id,
MediaSources = mediaSources,
Profile = profile,
DeviceId = deviceId,
MaxBitrate = profile.MaxStreamingBitrate,
MediaSourceId = mediaSourceId
}),
Profile = profile
};
}
if (string.Equals(item.MediaType, MediaType.Photo, StringComparison.OrdinalIgnoreCase))
{
return PlaylistItemFactory.Create((Photo)item, profile);
}
throw new ArgumentException("Unrecognized item type.");
}
/// <summary>
/// Plays the items.
/// </summary>
/// <param name="items">The items.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns><c>true</c> on success.</returns>
private async Task<bool> PlayItems(IEnumerable<PlaylistItem> items, CancellationToken cancellationToken = default)
{
_playlist.Clear();
_playlist.AddRange(items);
_logger.LogDebug("{0} - Playing {1} items", _session.DeviceName, _playlist.Count);
await SetPlaylistIndex(0, cancellationToken).ConfigureAwait(false);
return true;
}
private async Task SetPlaylistIndex(int index, CancellationToken cancellationToken = default)
{
if (index < 0 || index >= _playlist.Count)
{
_playlist.Clear();
await _device.SetStop(cancellationToken).ConfigureAwait(false);
return;
}
_currentPlaylistIndex = index;
var currentitem = _playlist[index];
await _device.SetAvTransport(currentitem.StreamUrl, GetDlnaHeaders(currentitem), currentitem.Didl, cancellationToken).ConfigureAwait(false);
var streamInfo = currentitem.StreamInfo;
if (streamInfo.StartPositionTicks > 0 && EnableClientSideSeek(streamInfo))
{
await SeekAfterTransportChange(streamInfo.StartPositionTicks, CancellationToken.None).ConfigureAwait(false);
}
}
/// <inheritdoc />
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// Releases unmanaged and optionally managed resources.
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
_device.Dispose();
}
_device.PlaybackStart -= OnDevicePlaybackStart;
_device.PlaybackProgress -= OnDevicePlaybackProgress;
_device.PlaybackStopped -= OnDevicePlaybackStopped;
_device.MediaChanged -= OnDeviceMediaChanged;
_deviceDiscovery.DeviceLeft -= OnDeviceDiscoveryDeviceLeft;
_device.OnDeviceUnavailable = null;
_device = null;
_disposed = true;
}
private Task SendGeneralCommand(GeneralCommand command, CancellationToken cancellationToken)
{
switch (command.Name)
{
case GeneralCommandType.VolumeDown:
return _device.VolumeDown(cancellationToken);
case GeneralCommandType.VolumeUp:
return _device.VolumeUp(cancellationToken);
case GeneralCommandType.Mute:
return _device.Mute(cancellationToken);
case GeneralCommandType.Unmute:
return _device.Unmute(cancellationToken);
case GeneralCommandType.ToggleMute:
return _device.ToggleMute(cancellationToken);
case GeneralCommandType.SetAudioStreamIndex:
if (command.Arguments.TryGetValue("Index", out string index))
{
if (int.TryParse(index, NumberStyles.Integer, _usCulture, out var val))
{
return SetAudioStreamIndex(val);
}
throw new ArgumentException("Unsupported SetAudioStreamIndex value supplied.");
}
throw new ArgumentException("SetAudioStreamIndex argument cannot be null");
case GeneralCommandType.SetSubtitleStreamIndex:
if (command.Arguments.TryGetValue("Index", out index))
{
if (int.TryParse(index, NumberStyles.Integer, _usCulture, out var val))
{
return SetSubtitleStreamIndex(val);
}
throw new ArgumentException("Unsupported SetSubtitleStreamIndex value supplied.");
}
throw new ArgumentException("SetSubtitleStreamIndex argument cannot be null");
case GeneralCommandType.SetVolume:
if (command.Arguments.TryGetValue("Volume", out string vol))
{
if (int.TryParse(vol, NumberStyles.Integer, _usCulture, out var volume))
{
return _device.SetVolume(volume, cancellationToken);
}
throw new ArgumentException("Unsupported volume value supplied.");
}
throw new ArgumentException("Volume argument cannot be null");
default:
return Task.CompletedTask;
}
}
private async Task SetAudioStreamIndex(int? newIndex)
{
var media = _device.CurrentMediaInfo;
if (media != null)
{
var info = StreamParams.ParseFromUrl(media.Url, _libraryManager, _mediaSourceManager);
if (info.Item != null)
{
var newPosition = GetProgressPositionTicks(info) ?? 0;
var user = !_session.UserId.Equals(Guid.Empty) ? _userManager.GetUserById(_session.UserId) : null;
var newItem = CreatePlaylistItem(info.Item, user, newPosition, info.MediaSourceId, newIndex, info.SubtitleStreamIndex);
await _device.SetAvTransport(newItem.StreamUrl, GetDlnaHeaders(newItem), newItem.Didl, CancellationToken.None).ConfigureAwait(false);
if (EnableClientSideSeek(newItem.StreamInfo))
{
await SeekAfterTransportChange(newPosition, CancellationToken.None).ConfigureAwait(false);
}
}
}
}
private async Task SetSubtitleStreamIndex(int? newIndex)
{
var media = _device.CurrentMediaInfo;
if (media != null)
{
var info = StreamParams.ParseFromUrl(media.Url, _libraryManager, _mediaSourceManager);
if (info.Item != null)
{
var newPosition = GetProgressPositionTicks(info) ?? 0;
var user = !_session.UserId.Equals(Guid.Empty) ? _userManager.GetUserById(_session.UserId) : null;
var newItem = CreatePlaylistItem(info.Item, user, newPosition, info.MediaSourceId, info.AudioStreamIndex, newIndex);
await _device.SetAvTransport(newItem.StreamUrl, GetDlnaHeaders(newItem), newItem.Didl, CancellationToken.None).ConfigureAwait(false);
if (EnableClientSideSeek(newItem.StreamInfo) && newPosition > 0)
{
await SeekAfterTransportChange(newPosition, CancellationToken.None).ConfigureAwait(false);
}
}
}
}
private async Task SeekAfterTransportChange(long positionTicks, CancellationToken cancellationToken)
{
const int MaxWait = 15000000;
const int Interval = 500;
var currentWait = 0;
while (_device.TransportState != TransportState.Playing && currentWait < MaxWait)
{
await Task.Delay(Interval, cancellationToken).ConfigureAwait(false);
currentWait += Interval;
}
await _device.Seek(TimeSpan.FromTicks(positionTicks), cancellationToken).ConfigureAwait(false);
}
private static int? GetIntValue(IReadOnlyDictionary<string, string> values, string name)
{
var value = values.GetValueOrDefault(name);
if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
{
return result;
}
return null;
}
private static long GetLongValue(IReadOnlyDictionary<string, string> values, string name)
{
var value = values.GetValueOrDefault(name);
if (long.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
{
return result;
}
return 0;
}
/// <inheritdoc />
public Task SendMessage<T>(SessionMessageType name, Guid messageId, T data, CancellationToken cancellationToken)
{
if (_disposed)
{
throw new ObjectDisposedException(GetType().Name);
}
if (_device == null)
{
return Task.CompletedTask;
}
if (name == SessionMessageType.Play)
{
return SendPlayCommand(data as PlayRequest, cancellationToken);
}
if (name == SessionMessageType.Playstate)
{
return SendPlaystateCommand(data as PlaystateRequest, cancellationToken);
}
if (name == SessionMessageType.GeneralCommand)
{
return SendGeneralCommand(data as GeneralCommand, cancellationToken);
}
// Not supported or needed right now
return Task.CompletedTask;
}
private class StreamParams
{
private MediaSourceInfo mediaSource;
private IMediaSourceManager _mediaSourceManager;
public Guid ItemId { get; set; }
public bool IsDirectStream { get; set; }
public long StartPositionTicks { get; set; }
public int? AudioStreamIndex { get; set; }
public int? SubtitleStreamIndex { get; set; }
public string DeviceProfileId { get; set; }
public string DeviceId { get; set; }
public string MediaSourceId { get; set; }
public string LiveStreamId { get; set; }
public BaseItem Item { get; set; }
public async Task<MediaSourceInfo> GetMediaSource(CancellationToken cancellationToken)
{
if (mediaSource != null)
{
return mediaSource;
}
var hasMediaSources = Item as IHasMediaSources;
if (hasMediaSources == null)
{
return null;
}
if (_mediaSourceManager != null)
{
mediaSource = await _mediaSourceManager.GetMediaSource(Item, MediaSourceId, LiveStreamId, false, cancellationToken).ConfigureAwait(false);
}
return mediaSource;
}
private static Guid GetItemId(string url)
{
if (string.IsNullOrEmpty(url))
{
throw new ArgumentNullException(nameof(url));
}
var parts = url.Split('/');
for (var i = 0; i < parts.Length - 1; i++)
{
var part = parts[i];
if (string.Equals(part, "audio", StringComparison.OrdinalIgnoreCase) ||
string.Equals(part, "videos", StringComparison.OrdinalIgnoreCase))
{
if (Guid.TryParse(parts[i + 1], out var result))
{
return result;
}
}
}
return Guid.Empty;
}
public static StreamParams ParseFromUrl(string url, ILibraryManager libraryManager, IMediaSourceManager mediaSourceManager)
{
if (string.IsNullOrEmpty(url))
{
throw new ArgumentNullException(nameof(url));
}
var request = new StreamParams
{
ItemId = GetItemId(url)
};
if (request.ItemId.Equals(Guid.Empty))
{
return request;
}
var index = url.IndexOf('?', StringComparison.Ordinal);
if (index == -1)
{
return request;
}
var query = url.Substring(index + 1);
Dictionary<string, string> values = QueryHelpers.ParseQuery(query).ToDictionary(kv => kv.Key, kv => kv.Value.ToString());
request.DeviceProfileId = values.GetValueOrDefault("DeviceProfileId");
request.DeviceId = values.GetValueOrDefault("DeviceId");
request.MediaSourceId = values.GetValueOrDefault("MediaSourceId");
request.LiveStreamId = values.GetValueOrDefault("LiveStreamId");
request.IsDirectStream = string.Equals("true", values.GetValueOrDefault("Static"), StringComparison.OrdinalIgnoreCase);
request.AudioStreamIndex = GetIntValue(values, "AudioStreamIndex");
request.SubtitleStreamIndex = GetIntValue(values, "SubtitleStreamIndex");
request.StartPositionTicks = GetLongValue(values, "StartPositionTicks");
request.Item = libraryManager.GetItemById(request.ItemId);
request._mediaSourceManager = mediaSourceManager;
return request;
}
}
}
}