2021-05-20 15:28:18 -04:00
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#nullable disable
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2020-02-06 09:20:23 -05:00
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#pragma warning disable CS1591
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2019-01-13 14:54:44 -05:00
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Net.Http;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.LiveTv;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.LiveTv;
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using MediaBrowser.Model.MediaInfo;
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using Microsoft.Extensions.Caching.Memory;
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using Microsoft.Extensions.Logging;
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using Microsoft.Net.Http.Headers;
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2015-07-20 14:32:55 -04:00
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2016-11-03 19:35:19 -04:00
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namespace Emby.Server.Implementations.LiveTv.TunerHosts
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{
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public class M3UTunerHost : BaseTunerHost, ITunerHost, IConfigurableTunerHost
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{
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private static readonly string[] _disallowedSharedStreamExtensions =
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{
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".mkv",
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".mp4",
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".m3u8",
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".mpd"
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};
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private readonly IHttpClientFactory _httpClientFactory;
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private readonly IServerApplicationHost _appHost;
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private readonly INetworkManager _networkManager;
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private readonly IMediaSourceManager _mediaSourceManager;
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private readonly IStreamHelper _streamHelper;
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public M3UTunerHost(
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IServerConfigurationManager config,
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IMediaSourceManager mediaSourceManager,
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ILogger<M3UTunerHost> logger,
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IFileSystem fileSystem,
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IHttpClientFactory httpClientFactory,
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IServerApplicationHost appHost,
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INetworkManager networkManager,
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IStreamHelper streamHelper,
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IMemoryCache memoryCache)
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: base(config, logger, fileSystem, memoryCache)
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{
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_httpClientFactory = httpClientFactory;
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_appHost = appHost;
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_networkManager = networkManager;
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_mediaSourceManager = mediaSourceManager;
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_streamHelper = streamHelper;
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}
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public override string Type => "m3u";
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public virtual string Name => "M3U Tuner";
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private string GetFullChannelIdPrefix(TunerHostInfo info)
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{
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return ChannelIdPrefix + info.Url.GetMD5().ToString("N", CultureInfo.InvariantCulture);
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}
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protected override async Task<List<ChannelInfo>> GetChannelsInternal(TunerHostInfo tuner, CancellationToken cancellationToken)
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{
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var channelIdPrefix = GetFullChannelIdPrefix(tuner);
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return await new M3uParser(Logger, _httpClientFactory)
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.Parse(tuner, channelIdPrefix, cancellationToken)
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.ConfigureAwait(false);
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}
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public Task<List<LiveTvTunerInfo>> GetTunerInfos(CancellationToken cancellationToken)
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{
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var list = GetTunerHosts()
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.Select(i => new LiveTvTunerInfo()
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{
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Name = Name,
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SourceType = Type,
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Status = LiveTvTunerStatus.Available,
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Id = i.Url.GetMD5().ToString("N", CultureInfo.InvariantCulture),
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Url = i.Url
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})
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.ToList();
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return Task.FromResult(list);
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}
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protected override async Task<ILiveStream> GetChannelStream(TunerHostInfo tunerHost, ChannelInfo channel, string streamId, List<ILiveStream> currentLiveStreams, CancellationToken cancellationToken)
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{
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var tunerCount = tunerHost.TunerCount;
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if (tunerCount > 0)
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{
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var tunerHostId = tunerHost.Id;
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var liveStreams = currentLiveStreams.Where(i => string.Equals(i.TunerHostId, tunerHostId, StringComparison.OrdinalIgnoreCase));
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if (liveStreams.Count() >= tunerCount)
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{
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throw new LiveTvConflictException("M3U simultaneous stream limit has been reached.");
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}
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}
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var sources = await GetChannelStreamMediaSources(tunerHost, channel, cancellationToken).ConfigureAwait(false);
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var mediaSource = sources[0];
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if (mediaSource.Protocol == MediaProtocol.Http && !mediaSource.RequiresLooping)
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{
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var extension = Path.GetExtension(mediaSource.Path) ?? string.Empty;
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if (!_disallowedSharedStreamExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
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{
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return new SharedHttpStream(mediaSource, tunerHost, streamId, FileSystem, _httpClientFactory, Logger, Config, _appHost, _streamHelper);
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}
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}
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return new LiveStream(mediaSource, tunerHost, FileSystem, Logger, Config, _streamHelper);
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}
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public async Task Validate(TunerHostInfo info)
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{
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using (var stream = await new M3uParser(Logger, _httpClientFactory).GetListingsStream(info, CancellationToken.None).ConfigureAwait(false))
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{
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}
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}
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protected override Task<List<MediaSourceInfo>> GetChannelStreamMediaSources(TunerHostInfo tuner, ChannelInfo channel, CancellationToken cancellationToken)
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{
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return Task.FromResult(new List<MediaSourceInfo> { CreateMediaSourceInfo(tuner, channel) });
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}
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protected virtual MediaSourceInfo CreateMediaSourceInfo(TunerHostInfo info, ChannelInfo channel)
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{
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var path = channel.Path;
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var supportsDirectPlay = !info.EnableStreamLooping && info.TunerCount == 0;
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var supportsDirectStream = !info.EnableStreamLooping;
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var protocol = _mediaSourceManager.GetPathProtocol(path);
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var isRemote = true;
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if (Uri.TryCreate(path, UriKind.Absolute, out var uri))
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{
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isRemote = !_networkManager.IsInLocalNetwork(uri.Host);
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}
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var httpHeaders = new Dictionary<string, string>();
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if (protocol == MediaProtocol.Http)
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{
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// Use user-defined user-agent. If there isn't one, make it look like a browser.
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httpHeaders[HeaderNames.UserAgent] = string.IsNullOrWhiteSpace(info.UserAgent) ?
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.85 Safari/537.36" :
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info.UserAgent;
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}
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var mediaSource = new MediaSourceInfo
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{
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Path = path,
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Protocol = protocol,
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MediaStreams = new List<MediaStream>
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{
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new MediaStream
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{
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Type = MediaStreamType.Video,
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// Set the index to -1 because we don't know the exact index of the video stream within the container
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Index = -1,
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IsInterlaced = true
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},
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new MediaStream
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{
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Type = MediaStreamType.Audio,
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// Set the index to -1 because we don't know the exact index of the audio stream within the container
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Index = -1
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}
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},
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RequiresOpening = true,
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RequiresClosing = true,
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RequiresLooping = info.EnableStreamLooping,
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ReadAtNativeFramerate = false,
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Id = channel.Path.GetMD5().ToString("N", CultureInfo.InvariantCulture),
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IsInfiniteStream = true,
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IsRemote = isRemote,
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IgnoreDts = true,
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SupportsDirectPlay = supportsDirectPlay,
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SupportsDirectStream = supportsDirectStream,
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RequiredHttpHeaders = httpHeaders
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};
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mediaSource.InferTotalBitrate();
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return mediaSource;
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}
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2017-03-13 00:49:10 -04:00
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public Task<List<TunerHostInfo>> DiscoverDevices(int discoveryDurationMs, CancellationToken cancellationToken)
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{
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return Task.FromResult(new List<TunerHostInfo>());
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}
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}
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}
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