Merge remote-tracking branch 'upstream/master' into healthy-base-url

23 files changed, 90 insertions, 97 deletions

diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
index 7a6b1d8b61..3fcadf5b1b 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
index 91a21db60a..7970631201 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -17,7 +19,6 @@ using Jellyfin.Data.Enums;
 using Jellyfin.Data.Events;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Common.Extensions;
-using MediaBrowser.Common.Net;
 using MediaBrowser.Common.Progress;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
@@ -802,22 +803,22 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
         public ActiveRecordingInfo GetActiveRecordingInfo(string path)
         {
-            if (string.IsNullOrWhiteSpace(path))
+            if (string.IsNullOrWhiteSpace(path) || _activeRecordings.IsEmpty)
             {
                 return null;
             }
 
-            foreach (var recording in _activeRecordings.Values)
+            foreach (var (_, recordingInfo) in _activeRecordings)
             {
-                if (string.Equals(recording.Path, path, StringComparison.Ordinal) && !recording.CancellationTokenSource.IsCancellationRequested)
+                if (string.Equals(recordingInfo.Path, path, StringComparison.Ordinal) && !recordingInfo.CancellationTokenSource.IsCancellationRequested)
                 {
-                    var timer = recording.Timer;
+                    var timer = recordingInfo.Timer;
                     if (timer.Status != RecordingStatus.InProgress)
                     {
                         return null;
                     }
 
-                    return recording;
+                    return recordingInfo;
                 }
             }
 
@@ -1622,9 +1623,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             }
 
             return _activeRecordings
-                .Values
-                .ToList()
-                .Any(i => string.Equals(i.Path, path, StringComparison.OrdinalIgnoreCase) && !string.Equals(i.Timer.Id, timerId, StringComparison.OrdinalIgnoreCase));
+                .Any(i => string.Equals(i.Value.Path, path, StringComparison.OrdinalIgnoreCase) && !string.Equals(i.Value.Timer.Id, timerId, StringComparison.OrdinalIgnoreCase));
         }
 
         private IRecorder GetRecorder(MediaSourceInfo mediaSource)
@@ -2240,14 +2239,10 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             var enabledTimersForSeries = new List<TimerInfo>();
             foreach (var timer in allTimers)
             {
-                var existingTimer = _timerProvider.GetTimer(timer.Id);
-
-                if (existingTimer == null)
-                {
-                    existingTimer = string.IsNullOrWhiteSpace(timer.ProgramId)
+                var existingTimer = _timerProvider.GetTimer(timer.Id) 
+                    ?? (string.IsNullOrWhiteSpace(timer.ProgramId)
                         ? null
-                        : _timerProvider.GetTimerByProgramId(timer.ProgramId);
-                }
+                        : _timerProvider.GetTimerByProgramId(timer.ProgramId));
 
                 if (existingTimer == null)
                 {
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
index 44a8cdee49..26e4ef1ed9 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -10,6 +12,7 @@ using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Configuration;
+using MediaBrowser.Common.Extensions;
 using MediaBrowser.Common.Json;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
@@ -307,13 +310,11 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             {
                 using (var reader = new StreamReader(source))
                 {
-                    while (!reader.EndOfStream)
+                    await foreach (var line in reader.ReadAllLinesAsync().ConfigureAwait(false))
                     {
-                        var line = await reader.ReadLineAsync().ConfigureAwait(false);
-
                         var bytes = Encoding.UTF8.GetBytes(Environment.NewLine + line);
 
-                        await target.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
+                        await target.WriteAsync(bytes.AsMemory()).ConfigureAwait(false);
                         await target.FlushAsync().ConfigureAwait(false);
                     }
                 }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EpgChannelData.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EpgChannelData.cs
index 8c27ca76e3..0ec52a9598 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EpgChannelData.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EpgChannelData.cs
@@ -6,7 +6,6 @@ using MediaBrowser.Controller.LiveTv;
 
 namespace Emby.Server.Implementations.LiveTv.EmbyTV
 {
-
     internal class EpgChannelData
     {
 
@@ -39,13 +38,13 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             }
         }
 
-        public ChannelInfo GetChannelById(string id)
+        public ChannelInfo? GetChannelById(string id)
             => _channelsById.GetValueOrDefault(id);
 
-        public ChannelInfo GetChannelByNumber(string number)
+        public ChannelInfo? GetChannelByNumber(string number)
             => _channelsByNumber.GetValueOrDefault(number);
 
-        public ChannelInfo GetChannelByName(string name)
+        public ChannelInfo? GetChannelByName(string name)
             => _channelsByName.GetValueOrDefault(name);
 
         public static string NormalizeName(string value)
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
index c20b080883..bdab8c3e4b 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/ItemDataProvider.cs
@@ -1,12 +1,12 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text;
 using System.Text.Json;
-using System.Threading.Tasks;
 using MediaBrowser.Common.Json;
 using Microsoft.Extensions.Logging;
 
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
index 142c59542a..1088638691 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/RecordingHelper.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -6,7 +8,7 @@ using MediaBrowser.Controller.LiveTv;
 
 namespace Emby.Server.Implementations.LiveTv.EmbyTV
 {
-    internal class RecordingHelper
+    internal static class RecordingHelper
     {
         public static DateTime GetStartTime(TimerInfo timer)
         {
@@ -70,17 +72,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
         private static string GetDateString(DateTime date)
         {
-            date = date.ToLocalTime();
-
-            return string.Format(
-                CultureInfo.InvariantCulture,
-                "{0}_{1}_{2}_{3}_{4}_{5}",
-                date.Year.ToString("0000", CultureInfo.InvariantCulture),
-                date.Month.ToString("00", CultureInfo.InvariantCulture),
-                date.Day.ToString("00", CultureInfo.InvariantCulture),
-                date.Hour.ToString("00", CultureInfo.InvariantCulture),
-                date.Minute.ToString("00", CultureInfo.InvariantCulture),
-                date.Second.ToString("00", CultureInfo.InvariantCulture));
+            return date.ToLocalTime().ToString("yyyy_MM_dd_HH_mm_ss", CultureInfo.InvariantCulture);
         }
     }
 }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/SeriesTimerManager.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/SeriesTimerManager.cs
index da707fec63..b1259de232 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/SeriesTimerManager.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/SeriesTimerManager.cs
@@ -2,7 +2,6 @@
 
 using System;
 using MediaBrowser.Controller.LiveTv;
-using MediaBrowser.Model.Serialization;
 using Microsoft.Extensions.Logging;
 
 namespace Emby.Server.Implementations.LiveTv.EmbyTV
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
index 1efa90e256..6c52a9a73d 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/TimerManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
index 1926e738f2..00d02873c5 100644
--- a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
+++ b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -787,14 +789,11 @@ namespace Emby.Server.Implementations.LiveTv.Listings
             {
                 var channelNumber = GetChannelNumber(channel);
 
-                var station = allStations.Find(item => string.Equals(item.stationID, channel.stationID, StringComparison.OrdinalIgnoreCase));
-                if (station == null)
-                {
-                    station = new ScheduleDirect.Station
+                var station = allStations.Find(item => string.Equals(item.stationID, channel.stationID, StringComparison.OrdinalIgnoreCase)) 
+                    ?? new ScheduleDirect.Station
                     {
                         stationID = channel.stationID
                     };
-                }
 
                 var channelInfo = new ChannelInfo
                 {
diff --git a/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs b/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
index 76c8757370..ebad4eddf1 100644
--- a/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/Listings/XmlTvListingsProvider.cs
@@ -1,10 +1,11 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.IO.Compression;
 using System.Linq;
 using System.Net.Http;
 using System.Threading;
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs b/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
index 6af49dd45e..21e1409ac0 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvDtoService.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
index 63a3146aa9..1f16289002 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -987,10 +989,7 @@ namespace Emby.Server.Implementations.LiveTv
                 var externalProgramId = programTuple.Item2;
                 string externalSeriesId = programTuple.Item3;
 
-                if (timerList == null)
-                {
-                    timerList = (await GetTimersInternal(new TimerQuery(), cancellationToken).ConfigureAwait(false)).Items;
-                }
+                timerList ??= (await GetTimersInternal(new TimerQuery(), cancellationToken).ConfigureAwait(false)).Items;
 
                 var timer = timerList.FirstOrDefault(i => string.Equals(i.ProgramId, externalProgramId, StringComparison.OrdinalIgnoreCase));
                 var foundSeriesTimer = false;
@@ -1018,10 +1017,7 @@ namespace Emby.Server.Implementations.LiveTv
                     continue;
                 }
 
-                if (seriesTimerList == null)
-                {
-                    seriesTimerList = (await GetSeriesTimersInternal(new SeriesTimerQuery(), cancellationToken).ConfigureAwait(false)).Items;
-                }
+                seriesTimerList ??= (await GetSeriesTimersInternal(new SeriesTimerQuery(), cancellationToken).ConfigureAwait(false)).Items;
 
                 var seriesTimer = seriesTimerList.FirstOrDefault(i => string.Equals(i.SeriesId, externalSeriesId, StringComparison.OrdinalIgnoreCase));
 
@@ -1974,10 +1970,7 @@ namespace Emby.Server.Implementations.LiveTv
                 };
             }
 
-            if (service == null)
-            {
-                service = _services[0];
-            }
+            service ??= _services[0];
 
             var info = await service.GetNewTimerDefaultsAsync(cancellationToken, programInfo).ConfigureAwait(false);
 
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs b/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
index 3a738fd5d2..ecd28097d3 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvMediaSourceProvider.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
index fbcd4ef372..00a37bb022 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/Channels.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/Channels.cs
index 740cbb66ee..0f04531896 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/Channels.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/Channels.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
 {
     internal class Channels
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/DiscoverResponse.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/DiscoverResponse.cs
index 09d77f8382..42068cd340 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/DiscoverResponse.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/DiscoverResponse.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 using System;
 
 namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
index 68173a0ef7..c5700db715 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -8,10 +10,8 @@ using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Text.Json;
-using System.Text.Json.Serialization;
 using System.Threading;
 using System.Threading.Tasks;
-using MediaBrowser.Common.Configuration;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Common.Json;
 using MediaBrowser.Common.Net;
@@ -19,7 +19,6 @@ using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.LiveTv;
-using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.Dto;
 using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.IO;
@@ -77,7 +76,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
         {
             var model = await GetModelInfo(info, false, cancellationToken).ConfigureAwait(false);
 
-            using var response = await _httpClientFactory.CreateClient(NamedClient.Default).GetAsync(model.LineupURL, HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
+            using var response = await _httpClientFactory.CreateClient(NamedClient.Default).GetAsync(model.LineupURL ?? model.BaseURL + "/lineup.json", HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
             await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
             var lineup = await JsonSerializer.DeserializeAsync<List<Channels>>(stream, _jsonOptions, cancellationToken)
                 .ConfigureAwait(false) ?? new List<Channels>();
@@ -185,16 +184,16 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
             await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
             using var sr = new StreamReader(stream, System.Text.Encoding.UTF8);
             var tuners = new List<LiveTvTunerInfo>();
-            while (!sr.EndOfStream)
+            await foreach (var line in sr.ReadAllLinesAsync().ConfigureAwait(false))
             {
-                string line = StripXML(sr.ReadLine());
-                if (line.Contains("Channel", StringComparison.Ordinal))
+                string stripedLine = StripXML(line);
+                if (stripedLine.Contains("Channel", StringComparison.Ordinal))
                 {
                     LiveTvTunerStatus status;
-                    var index = line.IndexOf("Channel", StringComparison.OrdinalIgnoreCase);
-                    var name = line.Substring(0, index - 1);
-                    var currentChannel = line.Substring(index + 7);
-                    if (currentChannel != "none")
+                    var index = stripedLine.IndexOf("Channel", StringComparison.OrdinalIgnoreCase);
+                    var name = stripedLine.Substring(0, index - 1);
+                    var currentChannel = stripedLine.Substring(index + 7);
+                    if (string.Equals(currentChannel, "none", StringComparison.Ordinal))
                     {
                         status = LiveTvTunerStatus.LiveTv;
                     }
@@ -424,10 +423,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
 
             string audioCodec = channelInfo.AudioCodec;
 
-            if (!videoBitrate.HasValue)
-            {
-                videoBitrate = isHd ? 15000000 : 2000000;
-            }
+            videoBitrate ??= isHd ? 15000000 : 2000000;
 
             int? audioBitrate = isHd ? 448000 : 192000;
 
@@ -664,7 +660,9 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
                 _modelCache.Clear();
             }
 
-            cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(new CancellationTokenSource(discoveryDurationMs).Token, cancellationToken).Token;
+            using var timedCancellationToken = new CancellationTokenSource(discoveryDurationMs);
+            using var linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(timedCancellationToken.Token, cancellationToken);
+            cancellationToken = linkedCancellationTokenSource.Token;
             var list = new List<TunerHostInfo>();
 
             // Create udp broadcast discovery message
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
index a7fda1d72e..3016eeda24 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
index b16ccc561a..50a2d9abb3 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
index 78e62ff0a5..96a678c1d3 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
@@ -150,7 +152,8 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
 
         public async Task CopyToAsync(Stream stream, CancellationToken cancellationToken)
         {
-            cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, LiveStreamCancellationTokenSource.Token).Token;
+            using var linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, LiveStreamCancellationTokenSource.Token);
+            cancellationToken = linkedCancellationTokenSource.Token;
 
             // use non-async filestream on windows along with read due to https://github.com/dotnet/corefx/issues/6039
             var allowAsync = Environment.OSVersion.Platform != PlatformID.Win32NT;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/M3UTunerHost.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/M3UTunerHost.cs
index 4b170b2e4e..69035dac96 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/M3UTunerHost.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/M3UTunerHost.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/M3uParser.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/M3uParser.cs
index 2af635492e..48a0c3cd37 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/M3uParser.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/M3uParser.cs
@@ -1,10 +1,11 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.Linq;
 using System.Net.Http;
 using System.Text.RegularExpressions;
 using System.Threading;
@@ -36,16 +37,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
             // Read the file and display it line by line.
             using (var reader = new StreamReader(await GetListingsStream(info, cancellationToken).ConfigureAwait(false)))
             {
-                return GetChannels(reader, channelIdPrefix, info.Id);
-            }
-        }
-
-        public List<ChannelInfo> ParseString(string text, string channelIdPrefix, string tunerHostId)
-        {
-            // Read the file and display it line by line.
-            using (var reader = new StringReader(text))
-            {
-                return GetChannels(reader, channelIdPrefix, tunerHostId);
+                return await GetChannelsAsync(reader, channelIdPrefix, info.Id).ConfigureAwait(false);
             }
         }
 
@@ -71,43 +63,42 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
 
         private const string ExtInfPrefix = "#EXTINF:";
 
-        private List<ChannelInfo> GetChannels(TextReader reader, string channelIdPrefix, string tunerHostId)
+        private async Task<List<ChannelInfo>> GetChannelsAsync(TextReader reader, string channelIdPrefix, string tunerHostId)
         {
             var channels = new List<ChannelInfo>();
-            string line;
             string extInf = string.Empty;
 
-            while ((line = reader.ReadLine()) != null)
+            await foreach (var line in reader.ReadAllLinesAsync().ConfigureAwait(false))
             {
-                line = line.Trim();
-                if (string.IsNullOrWhiteSpace(line))
+                var trimmedLine = line.Trim();
+                if (string.IsNullOrWhiteSpace(trimmedLine))
                 {
                     continue;
                 }
 
-                if (line.StartsWith("#EXTM3U", StringComparison.OrdinalIgnoreCase))
+                if (trimmedLine.StartsWith("#EXTM3U", StringComparison.OrdinalIgnoreCase))
                 {
                     continue;
                 }
 
-                if (line.StartsWith(ExtInfPrefix, StringComparison.OrdinalIgnoreCase))
+                if (trimmedLine.StartsWith(ExtInfPrefix, StringComparison.OrdinalIgnoreCase))
                 {
-                    extInf = line.Substring(ExtInfPrefix.Length).Trim();
+                    extInf = trimmedLine.Substring(ExtInfPrefix.Length).Trim();
                     _logger.LogInformation("Found m3u channel: {0}", extInf);
                 }
-                else if (!string.IsNullOrWhiteSpace(extInf) && !line.StartsWith('#'))
+                else if (!string.IsNullOrWhiteSpace(extInf) && !trimmedLine.StartsWith('#'))
                 {
-                    var channel = GetChannelnfo(extInf, tunerHostId, line);
+                    var channel = GetChannelnfo(extInf, tunerHostId, trimmedLine);
                     if (string.IsNullOrWhiteSpace(channel.Id))
                     {
-                        channel.Id = channelIdPrefix + line.GetMD5().ToString("N", CultureInfo.InvariantCulture);
+                        channel.Id = channelIdPrefix + trimmedLine.GetMD5().ToString("N", CultureInfo.InvariantCulture);
                     }
                     else
                     {
                         channel.Id = channelIdPrefix + channel.Id.GetMD5().ToString("N", CultureInfo.InvariantCulture);
                     }
 
-                    channel.Path = line;
+                    channel.Path = trimmedLine;
                     channels.Add(channel);
                     extInf = string.Empty;
                 }
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
index eeb2426f4f..137ed27e20 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;