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using MediaBrowser.Controller;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.Dlna;
namespace Emby.Server.Implementations.LiveTv
{
public class LiveTvMediaSourceProvider : IMediaSourceProvider
{
private readonly ILiveTvManager _liveTvManager;
private readonly IJsonSerializer _jsonSerializer;
private readonly ILogger _logger;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IServerApplicationHost _appHost;
public LiveTvMediaSourceProvider(ILiveTvManager liveTvManager, IJsonSerializer jsonSerializer, ILogManager logManager, IMediaSourceManager mediaSourceManager, IMediaEncoder mediaEncoder, IServerApplicationHost appHost)
{
_liveTvManager = liveTvManager;
_jsonSerializer = jsonSerializer;
_mediaSourceManager = mediaSourceManager;
_mediaEncoder = mediaEncoder;
_appHost = appHost;
_logger = logManager.GetLogger(GetType().Name);
}
public Task<IEnumerable<MediaSourceInfo>> GetMediaSources(IHasMediaSources item, CancellationToken cancellationToken)
{
var baseItem = (BaseItem)item;
if (baseItem.SourceType == SourceType.LiveTV)
{
if (string.IsNullOrWhiteSpace(baseItem.Path))
{
return GetMediaSourcesInternal(item, cancellationToken);
}
}
return Task.FromResult<IEnumerable<MediaSourceInfo>>(new List<MediaSourceInfo>());
}
// Do not use a pipe here because Roku http requests to the server will fail, without any explicit error message.
private const char StreamIdDelimeter = '_';
private const string StreamIdDelimeterString = "_";
private async Task<IEnumerable<MediaSourceInfo>> GetMediaSourcesInternal(IHasMediaSources item, CancellationToken cancellationToken)
{
IEnumerable<MediaSourceInfo> sources;
var forceRequireOpening = false;
try
{
if (item is ILiveTvRecording)
{
sources = await _liveTvManager.GetRecordingMediaSources(item, cancellationToken)
.ConfigureAwait(false);
}
else
{
sources = await _liveTvManager.GetChannelMediaSources(item, cancellationToken)
.ConfigureAwait(false);
}
}
catch (NotImplementedException)
{
var hasMediaSources = (IHasMediaSources)item;
sources = _mediaSourceManager.GetStaticMediaSources(hasMediaSources, false)
.ToList();
forceRequireOpening = true;
}
var list = sources.ToList();
var serverUrl = await _appHost.GetLocalApiUrl().ConfigureAwait(false);
foreach (var source in list)
{
source.Type = MediaSourceType.Default;
source.BufferMs = source.BufferMs ?? 1500;
if (source.RequiresOpening || forceRequireOpening)
{
source.RequiresOpening = true;
}
if (source.RequiresOpening)
{
var openKeys = new List<string>();
openKeys.Add(item.GetType().Name);
openKeys.Add(item.Id.ToString("N"));
openKeys.Add(source.Id ?? string.Empty);
source.OpenToken = string.Join(StreamIdDelimeterString, openKeys.ToArray());
}
// Dummy this up so that direct play checks can still run
if (string.IsNullOrEmpty(source.Path) && source.Protocol == MediaProtocol.Http)
{
source.Path = serverUrl;
}
}
_logger.Debug("MediaSources: {0}", _jsonSerializer.SerializeToString(list));
return list;
}
public async Task<Tuple<MediaSourceInfo, IDirectStreamProvider>> OpenMediaSource(string openToken, CancellationToken cancellationToken)
{
MediaSourceInfo stream = null;
const bool isAudio = false;
var keys = openToken.Split(new[] { StreamIdDelimeter }, 3);
var mediaSourceId = keys.Length >= 3 ? keys[2] : null;
IDirectStreamProvider directStreamProvider = null;
if (string.Equals(keys[0], typeof(LiveTvChannel).Name, StringComparison.OrdinalIgnoreCase))
{
var info = await _liveTvManager.GetChannelStream(keys[1], mediaSourceId, cancellationToken).ConfigureAwait(false);
stream = info.Item1;
directStreamProvider = info.Item2;
}
else
{
stream = await _liveTvManager.GetRecordingStream(keys[1], cancellationToken).ConfigureAwait(false);
}
try
{
if (!stream.SupportsProbing || stream.MediaStreams.Any(i => i.Index != -1))
{
AddMediaInfo(stream, isAudio, cancellationToken);
}
else
{
await new LiveStreamHelper(_mediaEncoder, _logger).AddMediaInfoWithProbe(stream, isAudio, cancellationToken).ConfigureAwait(false);
}
}
catch (Exception ex)
{
_logger.ErrorException("Error probing live tv stream", ex);
}
_logger.Info("Live stream info: {0}", _jsonSerializer.SerializeToString(stream));
return new Tuple<MediaSourceInfo, IDirectStreamProvider>(stream, directStreamProvider);
}
private void AddMediaInfo(MediaSourceInfo mediaSource, bool isAudio, CancellationToken cancellationToken)
{
mediaSource.DefaultSubtitleStreamIndex = null;
// Null this out so that it will be treated like a live stream
mediaSource.RunTimeTicks = null;
var audioStream = mediaSource.MediaStreams.FirstOrDefault(i => i.Type == MediaBrowser.Model.Entities.MediaStreamType.Audio);
if (audioStream == null || audioStream.Index == -1)
{
mediaSource.DefaultAudioStreamIndex = null;
}
else
{
mediaSource.DefaultAudioStreamIndex = audioStream.Index;
}
var videoStream = mediaSource.MediaStreams.FirstOrDefault(i => i.Type == MediaBrowser.Model.Entities.MediaStreamType.Video);
if (videoStream != null)
{
if (!videoStream.BitRate.HasValue)
{
var width = videoStream.Width ?? 1920;
if (width >= 1900)
{
videoStream.BitRate = 15000000;
}
else if (width >= 1260)
{
videoStream.BitRate = 4000000;
}
else if (width >= 700)
{
videoStream.BitRate = 1000000;
}
}
}
// Try to estimate this
mediaSource.InferTotalBitrate();
}
public Task CloseMediaSource(string liveStreamId)
{
return _liveTvManager.CloseLiveStream(liveStreamId);
}
}
}
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