jellyfin-server/MediaBrowser.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
2015-04-05 11:01:57 -04:00

192 lines
6.8 KiB
C#

using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.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;
public LiveTvMediaSourceProvider(ILiveTvManager liveTvManager, IJsonSerializer jsonSerializer, ILogManager logManager, IMediaSourceManager mediaSourceManager, IMediaEncoder mediaEncoder)
{
_liveTvManager = liveTvManager;
_jsonSerializer = jsonSerializer;
_mediaSourceManager = mediaSourceManager;
_mediaEncoder = mediaEncoder;
_logger = logManager.GetLogger(GetType().Name);
}
public Task<IEnumerable<MediaSourceInfo>> GetMediaSources(IHasMediaSources item, CancellationToken cancellationToken)
{
var channelItem = item as ILiveTvItem;
if (channelItem != null)
{
var hasMetadata = (IHasMetadata)channelItem;
if (string.IsNullOrWhiteSpace(hasMetadata.Path))
{
return GetMediaSourcesInternal(channelItem, cancellationToken);
}
}
return Task.FromResult<IEnumerable<MediaSourceInfo>>(new List<MediaSourceInfo>());
}
private async Task<IEnumerable<MediaSourceInfo>> GetMediaSourcesInternal(ILiveTvItem item, CancellationToken cancellationToken)
{
IEnumerable<MediaSourceInfo> sources;
try
{
if (item is ILiveTvRecording)
{
sources = await _liveTvManager.GetRecordingMediaSources(item.Id.ToString("N"), cancellationToken)
.ConfigureAwait(false);
}
else
{
sources = await _liveTvManager.GetChannelMediaSources(item.Id.ToString("N"), cancellationToken)
.ConfigureAwait(false);
}
}
catch (NotImplementedException)
{
var hasMediaSources = (IHasMediaSources)item;
sources = _mediaSourceManager.GetStaticMediaSources(hasMediaSources, false)
.ToList();
}
var list = sources.ToList();
foreach (var source in list)
{
source.Type = MediaSourceType.Default;
source.RequiresOpening = true;
source.BufferMs = source.BufferMs ?? 1500;
var openKeys = new List<string>();
openKeys.Add(item.GetType().Name);
openKeys.Add(item.Id.ToString("N"));
source.OpenToken = string.Join("|", openKeys.ToArray());
}
_logger.Debug("MediaSources: {0}", _jsonSerializer.SerializeToString(list));
return list;
}
public async Task<MediaSourceInfo> OpenMediaSource(string openToken, CancellationToken cancellationToken)
{
MediaSourceInfo stream;
var isAudio = false;
var keys = openToken.Split(new[] { '|' }, 2);
if (string.Equals(keys[0], typeof(LiveTvChannel).Name, StringComparison.OrdinalIgnoreCase))
{
stream = await _liveTvManager.GetChannelStream(keys[1], cancellationToken).ConfigureAwait(false);
}
else
{
stream = await _liveTvManager.GetRecordingStream(keys[1], cancellationToken).ConfigureAwait(false);
}
try
{
await AddMediaInfo(stream, isAudio, cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error probing live tv stream", ex);
}
return stream;
}
private async Task AddMediaInfo(MediaSourceInfo mediaSource, bool isAudio, CancellationToken cancellationToken)
{
var inputPaths = new[] { mediaSource.Path };
var info = await _mediaEncoder.GetMediaInfo(new MediaInfoRequest
{
InputPath = mediaSource.Path,
Protocol = mediaSource.Protocol,
MediaType = isAudio ? DlnaProfileType.Audio : DlnaProfileType.Video,
ExtractChapters = false
}, cancellationToken)
.ConfigureAwait(false);
mediaSource.Bitrate = info.Bitrate;
mediaSource.Container = info.Container;
mediaSource.Formats = info.Formats;
mediaSource.MediaStreams = info.MediaStreams;
mediaSource.RunTimeTicks = info.RunTimeTicks;
mediaSource.Size = info.Size;
mediaSource.Timestamp = info.Timestamp;
mediaSource.Video3DFormat = info.Video3DFormat;
mediaSource.VideoType = info.VideoType;
mediaSource.DefaultSubtitleStreamIndex = null;
var audioStream = mediaSource.MediaStreams.FirstOrDefault(i => i.Type == Model.Entities.MediaStreamType.Audio);
if (audioStream == null || audioStream.Index == -1)
{
mediaSource.DefaultAudioStreamIndex = null;
}
else
{
mediaSource.DefaultAudioStreamIndex = audioStream.Index;
}
// Try to estimate this
if (!mediaSource.Bitrate.HasValue)
{
var videoStream = mediaSource.MediaStreams.FirstOrDefault(i => i.Type == Model.Entities.MediaStreamType.Video);
if (videoStream != null)
{
var width = videoStream.Width ?? 1920;
if (width >= 1900)
{
mediaSource.Bitrate = 10000000;
}
else if (width >= 1260)
{
mediaSource.Bitrate = 6000000;
}
else if (width >= 700)
{
mediaSource.Bitrate = 4000000;
}
}
}
}
public Task CloseMediaSource(string liveStreamId, CancellationToken cancellationToken)
{
return _liveTvManager.CloseLiveStream(liveStreamId, cancellationToken);
}
}
}