518 lines
19 KiB
C#
518 lines
19 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Net;
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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.LiveTv;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.MediaInfo;
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using MediaBrowser.Model.Serialization;
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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.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Model.Configuration;
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using MediaBrowser.Model.Net;
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namespace MediaBrowser.Server.Implementations.LiveTv.TunerHosts.HdHomerun
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{
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public class HdHomerunHost : BaseTunerHost, ITunerHost, IConfigurableTunerHost
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{
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private readonly IHttpClient _httpClient;
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public HdHomerunHost(IConfigurationManager config, ILogger logger, IJsonSerializer jsonSerializer, IMediaEncoder mediaEncoder, IHttpClient httpClient)
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: base(config, logger, jsonSerializer, mediaEncoder)
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{
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_httpClient = httpClient;
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}
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public string Name
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{
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get { return "HD Homerun"; }
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}
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public override string Type
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{
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get { return DeviceType; }
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}
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public static string DeviceType
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{
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get { return "hdhomerun"; }
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}
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private const string ChannelIdPrefix = "hdhr_";
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private string GetChannelId(TunerHostInfo info, Channels i)
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{
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var id = ChannelIdPrefix + i.GuideNumber.ToString(CultureInfo.InvariantCulture);
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if (info.DataVersion >= 1)
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{
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id += '_' + (i.GuideName ?? string.Empty).GetMD5().ToString("N");
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}
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return id;
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}
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public string ApplyDuration(string streamPath, TimeSpan duration)
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{
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streamPath += streamPath.IndexOf('?') == -1 ? "?" : "&";
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streamPath += "duration=" + Convert.ToInt32(duration.TotalSeconds).ToString(CultureInfo.InvariantCulture);
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return streamPath;
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}
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private async Task<IEnumerable<Channels>> GetLineup(TunerHostInfo info, CancellationToken cancellationToken)
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{
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var options = new HttpRequestOptions
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{
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Url = string.Format("{0}/lineup.json", GetApiUrl(info, false)),
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CancellationToken = cancellationToken
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};
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using (var stream = await _httpClient.Get(options))
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{
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var lineup = JsonSerializer.DeserializeFromStream<List<Channels>>(stream) ?? new List<Channels>();
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if (info.ImportFavoritesOnly)
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{
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lineup = lineup.Where(i => i.Favorite).ToList();
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}
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return lineup.Where(i => !i.DRM).ToList();
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}
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}
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protected override async Task<IEnumerable<ChannelInfo>> GetChannelsInternal(TunerHostInfo info, CancellationToken cancellationToken)
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{
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var lineup = await GetLineup(info, cancellationToken).ConfigureAwait(false);
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return lineup.Select(i => new ChannelInfo
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{
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Name = i.GuideName,
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Number = i.GuideNumber.ToString(CultureInfo.InvariantCulture),
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Id = GetChannelId(info, i),
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IsFavorite = i.Favorite,
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TunerHostId = info.Id,
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IsHD = i.HD == 1,
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AudioCodec = i.AudioCodec,
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VideoCodec = i.VideoCodec
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});
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}
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private async Task<string> GetModelInfo(TunerHostInfo info, CancellationToken cancellationToken)
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{
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try
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{
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using (var stream = await _httpClient.Get(new HttpRequestOptions()
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{
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Url = string.Format("{0}/discover.json", GetApiUrl(info, false)),
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CancellationToken = cancellationToken,
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CacheLength = TimeSpan.FromDays(1),
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CacheMode = CacheMode.Unconditional,
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TimeoutMs = Convert.ToInt32(TimeSpan.FromSeconds(5).TotalMilliseconds)
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}))
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{
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var response = JsonSerializer.DeserializeFromStream<DiscoverResponse>(stream);
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return response.ModelNumber;
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}
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}
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catch (HttpException ex)
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{
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if (ex.StatusCode.HasValue && ex.StatusCode.Value == System.Net.HttpStatusCode.NotFound)
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{
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// HDHR4 doesn't have this api
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return "HDHR";
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}
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throw;
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}
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}
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public async Task<List<LiveTvTunerInfo>> GetTunerInfos(TunerHostInfo info, CancellationToken cancellationToken)
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{
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var model = await GetModelInfo(info, cancellationToken).ConfigureAwait(false);
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using (var stream = await _httpClient.Get(new HttpRequestOptions()
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{
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Url = string.Format("{0}/tuners.html", GetApiUrl(info, false)),
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CancellationToken = cancellationToken,
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TimeoutMs = Convert.ToInt32(TimeSpan.FromSeconds(5).TotalMilliseconds)
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}))
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{
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var tuners = new List<LiveTvTunerInfo>();
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using (var sr = new StreamReader(stream, System.Text.Encoding.UTF8))
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{
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while (!sr.EndOfStream)
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{
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string line = StripXML(sr.ReadLine());
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if (line.Contains("Channel"))
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{
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LiveTvTunerStatus status;
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var index = line.IndexOf("Channel", StringComparison.OrdinalIgnoreCase);
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var name = line.Substring(0, index - 1);
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var currentChannel = line.Substring(index + 7);
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if (currentChannel != "none") { status = LiveTvTunerStatus.LiveTv; } else { status = LiveTvTunerStatus.Available; }
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tuners.Add(new LiveTvTunerInfo
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{
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Name = name,
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SourceType = string.IsNullOrWhiteSpace(model) ? Name : model,
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ProgramName = currentChannel,
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Status = status
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});
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}
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}
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}
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return tuners;
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}
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}
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public async Task<List<LiveTvTunerInfo>> GetTunerInfos(CancellationToken cancellationToken)
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{
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var list = new List<LiveTvTunerInfo>();
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foreach (var host in GetConfiguration().TunerHosts
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.Where(i => i.IsEnabled && string.Equals(i.Type, Type, StringComparison.OrdinalIgnoreCase)))
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{
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try
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{
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list.AddRange(await GetTunerInfos(host, cancellationToken).ConfigureAwait(false));
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error getting tuner info", ex);
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}
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}
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return list;
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}
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private string GetApiUrl(TunerHostInfo info, bool isPlayback)
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{
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var url = info.Url;
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if (string.IsNullOrWhiteSpace(url))
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{
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throw new ArgumentException("Invalid tuner info");
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}
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if (!url.StartsWith("http", StringComparison.OrdinalIgnoreCase))
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{
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url = "http://" + url;
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}
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var uri = new Uri(url);
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if (isPlayback)
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{
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var builder = new UriBuilder(uri);
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builder.Port = 5004;
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uri = builder.Uri;
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}
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return uri.AbsoluteUri.TrimEnd('/');
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}
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private static string StripXML(string source)
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{
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char[] buffer = new char[source.Length];
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int bufferIndex = 0;
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bool inside = false;
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for (int i = 0; i < source.Length; i++)
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{
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char let = source[i];
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if (let == '<')
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{
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inside = true;
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continue;
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}
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if (let == '>')
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{
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inside = false;
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continue;
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}
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if (!inside)
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{
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buffer[bufferIndex] = let;
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bufferIndex++;
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}
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}
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return new string(buffer, 0, bufferIndex);
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}
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private class Channels
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{
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public string GuideNumber { get; set; }
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public string GuideName { get; set; }
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public string VideoCodec { get; set; }
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public string AudioCodec { get; set; }
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public string URL { get; set; }
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public bool Favorite { get; set; }
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public bool DRM { get; set; }
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public int HD { get; set; }
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}
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private async Task<MediaSourceInfo> GetMediaSource(TunerHostInfo info, string channelId, string profile)
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{
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int? width = null;
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int? height = null;
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bool isInterlaced = true;
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string videoCodec = null;
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string audioCodec = "ac3";
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int? videoBitrate = null;
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int? audioBitrate = null;
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if (string.Equals(profile, "mobile", StringComparison.OrdinalIgnoreCase))
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{
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width = 1280;
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height = 720;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 2000000;
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}
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else if (string.Equals(profile, "heavy", StringComparison.OrdinalIgnoreCase))
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{
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width = 1920;
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height = 1080;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 15000000;
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}
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else if (string.Equals(profile, "internet540", StringComparison.OrdinalIgnoreCase))
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{
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width = 960;
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height = 546;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 2500000;
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}
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else if (string.Equals(profile, "internet480", StringComparison.OrdinalIgnoreCase))
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{
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width = 848;
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height = 480;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 2000000;
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}
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else if (string.Equals(profile, "internet360", StringComparison.OrdinalIgnoreCase))
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{
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width = 640;
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height = 360;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 1500000;
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}
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else if (string.Equals(profile, "internet240", StringComparison.OrdinalIgnoreCase))
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{
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width = 432;
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height = 240;
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isInterlaced = false;
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videoCodec = "h264";
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videoBitrate = 1000000;
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}
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if (string.IsNullOrWhiteSpace(videoCodec))
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{
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var channels = await GetChannels(info, true, CancellationToken.None).ConfigureAwait(false);
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var channel = channels.FirstOrDefault(i => string.Equals(i.Number, channelId, StringComparison.OrdinalIgnoreCase));
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if (channel != null)
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{
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videoCodec = channel.VideoCodec;
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audioCodec = channel.AudioCodec;
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videoBitrate = (channel.IsHD ?? true) ? 15000000 : 2000000;
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audioBitrate = (channel.IsHD ?? true) ? 448000 : 192000;
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}
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}
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// normalize
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if (string.Equals(videoCodec, "mpeg2", StringComparison.OrdinalIgnoreCase))
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{
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videoCodec = "mpeg2video";
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}
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string nal = null;
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if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
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{
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nal = "0";
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}
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var url = GetApiUrl(info, true) + "/auto/v" + channelId;
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if (!string.IsNullOrWhiteSpace(profile) && !string.Equals(profile, "native", StringComparison.OrdinalIgnoreCase))
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{
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url += "?transcode=" + profile;
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}
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var mediaSource = new MediaSourceInfo
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{
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Path = url,
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Protocol = MediaProtocol.Http,
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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 = isInterlaced,
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Codec = videoCodec,
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Width = width,
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Height = height,
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BitRate = videoBitrate,
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NalLengthSize = nal
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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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Codec = audioCodec,
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BitRate = audioBitrate
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}
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},
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RequiresOpening = false,
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RequiresClosing = false,
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BufferMs = 0,
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Container = "ts",
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Id = profile,
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SupportsDirectPlay = true,
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SupportsDirectStream = false,
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SupportsTranscoding = true
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};
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return mediaSource;
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}
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protected EncodingOptions GetEncodingOptions()
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{
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return Config.GetConfiguration<EncodingOptions>("encoding");
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}
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private string GetHdHrIdFromChannelId(string channelId)
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{
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return channelId.Split('_')[1];
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}
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protected override async Task<List<MediaSourceInfo>> GetChannelStreamMediaSources(TunerHostInfo info, string channelId, CancellationToken cancellationToken)
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{
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var list = new List<MediaSourceInfo>();
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if (!channelId.StartsWith(ChannelIdPrefix, StringComparison.OrdinalIgnoreCase))
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{
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return list;
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}
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var hdhrId = GetHdHrIdFromChannelId(channelId);
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list.Add(await GetMediaSource(info, hdhrId, "native").ConfigureAwait(false));
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try
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{
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string model = await GetModelInfo(info, cancellationToken).ConfigureAwait(false);
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model = model ?? string.Empty;
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if (info.AllowHWTranscoding && (model.IndexOf("hdtc", StringComparison.OrdinalIgnoreCase) != -1))
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{
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list.Add(await GetMediaSource(info, hdhrId, "heavy").ConfigureAwait(false));
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list.Add(await GetMediaSource(info, hdhrId, "internet540").ConfigureAwait(false));
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list.Add(await GetMediaSource(info, hdhrId, "internet480").ConfigureAwait(false));
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list.Add(await GetMediaSource(info, hdhrId, "internet360").ConfigureAwait(false));
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list.Add(await GetMediaSource(info, hdhrId, "internet240").ConfigureAwait(false));
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list.Add(await GetMediaSource(info, hdhrId, "mobile").ConfigureAwait(false));
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}
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}
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catch
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{
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}
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return list;
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}
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protected override bool IsValidChannelId(string channelId)
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{
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if (string.IsNullOrWhiteSpace(channelId))
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{
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throw new ArgumentNullException("channelId");
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}
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return channelId.StartsWith(ChannelIdPrefix, StringComparison.OrdinalIgnoreCase);
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}
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protected override async Task<MediaSourceInfo> GetChannelStream(TunerHostInfo info, string channelId, string streamId, CancellationToken cancellationToken)
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{
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Logger.Info("GetChannelStream: channel id: {0}. stream id: {1}", channelId, streamId ?? string.Empty);
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if (!channelId.StartsWith(ChannelIdPrefix, StringComparison.OrdinalIgnoreCase))
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{
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throw new ArgumentException("Channel not found");
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}
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var hdhrId = GetHdHrIdFromChannelId(channelId);
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return await GetMediaSource(info, hdhrId, streamId).ConfigureAwait(false);
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}
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public async Task Validate(TunerHostInfo info)
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{
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if (!info.IsEnabled)
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{
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return;
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}
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try
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{
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// Test it by pulling down the lineup
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using (var stream = await _httpClient.Get(new HttpRequestOptions
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{
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Url = string.Format("{0}/discover.json", GetApiUrl(info, false)),
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CancellationToken = CancellationToken.None
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}))
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{
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var response = JsonSerializer.DeserializeFromStream<DiscoverResponse>(stream);
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info.DeviceId = response.DeviceID;
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}
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}
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catch (HttpException ex)
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{
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if (ex.StatusCode.HasValue && ex.StatusCode.Value == System.Net.HttpStatusCode.NotFound)
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{
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// HDHR4 doesn't have this api
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return;
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}
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throw;
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}
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}
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protected override async Task<bool> IsAvailableInternal(TunerHostInfo tuner, string channelId, CancellationToken cancellationToken)
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{
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var info = await GetTunerInfos(tuner, cancellationToken).ConfigureAwait(false);
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return info.Any(i => i.Status == LiveTvTunerStatus.Available);
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}
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public class DiscoverResponse
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{
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public string FriendlyName { get; set; }
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public string ModelNumber { get; set; }
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public string FirmwareName { get; set; }
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public string FirmwareVersion { get; set; }
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public string DeviceID { get; set; }
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public string DeviceAuth { get; set; }
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public string BaseURL { get; set; }
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public string LineupURL { get; set; }
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}
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}
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}
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