add channel playback troubleshooter (#2641)

* fix motion graphics loop when seeking

* add channel playback troubleshooter

* fix errors

CHANGELOG.md

@@ -48,6 +48,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - For example, adding `<etv:episode_number_key>{{ episode_number }}</etv:episode_number_key>` to `episode.sbntxt` will also add the `episode_number_key` field to all EPG items in the graphics engine
   - All values parsed from XMLTV will be available as strings in the graphics engine (not numbers)
   - All `etv:` nodes will be stripped from the XMLTV data when requested by a client
+- Add channel troubleshooting button to channels list
+  - This will open the playback troubleshooting tool in "channel" mode
+  - This mode requires entering a date and time, and will play up to 30 seconds of *one item from that channel's playout*
 
 ### Fixed
 - Fix HLS Direct playback with Jellyfin 10.11
@@ -71,6 +74,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - This fix applies to all libraries (local and media server)
 - Fix (3 year old) bug removing tags from local libraries when they are removed from NFO files (all content types)
   - New scans will properly remove old tags; NFO files may need to be touched to force updating during a scan
+- Fix bug where looping motion graphics wouldn't be displayed when seeking into second half of content
 
 ### Changed
 - Use smaller batch size for search index updates (100, down from 1000)

ErsatzTV.Application/Streaming/HlsSessionWorker.cs

@@ -461,7 +461,9 @@ public class HlsSessionWorker : IHlsSessionWorker
                 realtime,
                 _channelStart,
                 ptsOffset,
-                _targetFramerate);
+                _targetFramerate,
+                IsTroubleshooting: false,
+                Option<int>.None);
 
             // _logger.LogInformation("Request {@Request}", request);
 

ErsatzTV.Application/Streaming/PlayoutItemProcessModel.cs

@@ -9,4 +9,5 @@ public record PlayoutItemProcessModel(
     Option<TimeSpan> MaybeDuration,
     DateTimeOffset Until,
     bool IsComplete,
-    Option<long> SegmentKey);
+    Option<long> SegmentKey,
+    Option<int> MediaItemId);

ErsatzTV.Application/Streaming/Queries/FFmpegProcessHandler.cs

@@ -49,22 +49,41 @@ public abstract class FFmpegProcessHandler<T> : IRequestHandler<T, Either<BaseEr
             await FFprobePathMustExist(dbContext, cancellationToken))
         .Apply((channel, ffmpegPath, ffprobePath) => Tuple(channel, ffmpegPath, ffprobePath));
 
-    private static Task<Validation<BaseError, Channel>> ChannelMustExist(
+    private static async Task<Validation<BaseError, Channel>> ChannelMustExist(
         TvContext dbContext,
         T request,
-        CancellationToken cancellationToken) =>
-        dbContext.Channels
+        CancellationToken cancellationToken)
+    {
+        Option<Channel> maybeChannel = await dbContext.Channels
+            .AsNoTracking()
             .Include(c => c.FFmpegProfile)
             .ThenInclude(p => p.Resolution)
             .Include(c => c.Artwork)
             .Include(c => c.Watermark)
-            .SelectOneAsync(c => c.Number, c => c.Number == request.ChannelNumber, cancellationToken)
-            .MapT(channel =>
+            .SelectOneAsync(c => c.Number, c => c.Number == request.ChannelNumber, cancellationToken);
+
+        foreach (var channel in maybeChannel)
+        {
+            channel.StreamingMode = request.Mode;
+            foreach (int ffmpegProfileId in request.FFmpegProfileId)
             {
-                channel.StreamingMode = request.Mode;
-                return channel;
-            })
-            .Map(o => o.ToValidation<BaseError>($"Channel number {request.ChannelNumber} does not exist."));
+                Option<FFmpegProfile> maybeFFmpegProfile = await dbContext.FFmpegProfiles
+                    .AsNoTracking()
+                    .Include(ff => ff.Resolution)
+                    .SelectOneAsync(ff => ff.Id, ff => ff.Id == ffmpegProfileId, cancellationToken);
+
+                foreach (var ffmpegProfile in maybeFFmpegProfile)
+                {
+                    channel.FFmpegProfile = ffmpegProfile;
+                    channel.FFmpegProfileId = ffmpegProfile.Id;
+                }
+            }
+
+            return channel;
+        }
+
+        return BaseError.New($"Channel number {request.ChannelNumber} does not exist.");
+    }
 
     private static Task<Validation<BaseError, string>> FFmpegPathMustExist(
         TvContext dbContext,

ErsatzTV.Application/Streaming/Queries/FFmpegProcessRequest.cs

@@ -10,4 +10,5 @@ public record FFmpegProcessRequest(
     bool StartAtZero,
     bool HlsRealtime,
     DateTimeOffset ChannelStartTime,
-    TimeSpan PtsOffset) : IRequest<Either<BaseError, PlayoutItemProcessModel>>;
+    TimeSpan PtsOffset,
+    Option<int> FFmpegProfileId) : IRequest<Either<BaseError, PlayoutItemProcessModel>>;

ErsatzTV.Application/Streaming/Queries/GetConcatProcessByChannelNumber.cs

@@ -11,7 +11,8 @@ public record GetConcatProcessByChannelNumber : FFmpegProcessRequest
         false,
         true,
         DateTimeOffset.Now, // unused
-        TimeSpan.Zero)
+        TimeSpan.Zero,
+        Option<int>.None)
     {
         Scheme = scheme;
         Host = host;

ErsatzTV.Application/Streaming/Queries/GetConcatProcessByChannelNumberHandler.cs

@@ -44,6 +44,7 @@ public class GetConcatProcessByChannelNumberHandler : FFmpegProcessHandler<GetCo
             Option<TimeSpan>.None,
             DateTimeOffset.MaxValue,
             true,
-            Option<long>.None);
+            Option<long>.None,
+            Option<int>.None);
     }
 }

ErsatzTV.Application/Streaming/Queries/GetErrorProcess.cs

@@ -16,4 +16,5 @@ public record GetErrorProcess(
     true,
     HlsRealtime,
     DateTimeOffset.Now, // unused
-    PtsOffset);
+    PtsOffset,
+    Option<int>.None);

ErsatzTV.Application/Streaming/Queries/GetErrorProcessHandler.cs

@@ -42,6 +42,7 @@ public class GetErrorProcessHandler(
             request.MaybeDuration,
             request.Until,
             true,
-            now.ToUnixTimeSeconds());
+            now.ToUnixTimeSeconds(),
+            Option<int>.None);
     }
 }

ErsatzTV.Application/Streaming/Queries/GetPlayoutItemProcessByChannelNumber.cs

@@ -10,11 +10,14 @@ public record GetPlayoutItemProcessByChannelNumber(
     bool HlsRealtime,
     DateTimeOffset ChannelStart,
     TimeSpan PtsOffset,
-    Option<int> TargetFramerate) : FFmpegProcessRequest(
+    Option<int> TargetFramerate,
+    bool IsTroubleshooting,
+    Option<int> FFmpegProfileId) : FFmpegProcessRequest(
     ChannelNumber,
     Mode,
     Now,
     StartAtZero,
     HlsRealtime,
     ChannelStart,
-    PtsOffset);
+    PtsOffset,
+    FFmpegProfileId);

ErsatzTV.Application/Streaming/Queries/GetPlayoutItemProcessByChannelNumberHandler.cs

@@ -283,18 +283,31 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
 
             bool isComplete = true;
 
-            // if we are working ahead, limit to 44s (multiple of segment size)
+            TimeSpan limit = TimeSpan.Zero;
+
             if (!request.HlsRealtime)
             {
-                TimeSpan limit = TimeSpan.FromSeconds(44);
+                // if we are working ahead, limit to 44s (multiple of segment size)
+                limit = TimeSpan.FromSeconds(44);
+            }
 
-                if (duration > limit)
-                {
-                    finish = effectiveNow + limit;
-                    outPoint = inPoint + limit;
-                    duration = limit;
-                    isComplete = false;
-                }
+            if (request.IsTroubleshooting)
+            {
+                // if we are troubleshooting, limit to 30s
+                limit = TimeSpan.FromSeconds(30);
+            }
+
+            if (limit > TimeSpan.Zero && duration > limit)
+            {
+                finish = effectiveNow + limit;
+                outPoint = inPoint + limit;
+                duration = limit;
+                isComplete = false;
+            }
+
+            if (request.IsTroubleshooting)
+            {
+                channel.Number = ".troubleshooting";
             }
 
             if (_isDebugNoSync)
@@ -318,7 +331,8 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                     duration,
                     finish,
                     true,
-                    now.ToUnixTimeSeconds());
+                    now.ToUnixTimeSeconds(),
+                    Option<int>.None);
             }
 
             MediaVersion version = playoutItemWithPath.PlayoutItem.MediaItem.GetHeadVersion();
@@ -392,7 +406,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
 
             bool saveReports = await dbContext.ConfigElements
                 .GetValue<bool>(ConfigElementKey.FFmpegSaveReports, cancellationToken)
-                .Map(result => result.IfNone(false));
+                .Map(result => result.IfNone(false)) || request.IsTroubleshooting;
 
             _logger.LogDebug(
                 "S: {Start}, F: {Finish}, In: {InPoint}, Out: {OutPoint}, EffNow: {EffectiveNow}, Dur: {Duration}",
@@ -435,7 +449,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                 request.ChannelStartTime,
                 request.PtsOffset,
                 request.TargetFramerate,
-                Option<string>.None,
+                request.IsTroubleshooting ? FileSystemLayout.TranscodeTroubleshootingFolder : Option<string>.None,
                 _ => { },
                 canProxy: true,
                 cancellationToken);
@@ -446,7 +460,8 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                 duration,
                 finish,
                 isComplete,
-                effectiveNow.ToUnixTimeSeconds());
+                effectiveNow.ToUnixTimeSeconds(),
+                playoutItemResult.MediaItemId);
 
             return Right<BaseError, PlayoutItemProcessModel>(result);
         }
@@ -465,6 +480,14 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
 
             DateTimeOffset finish = maybeNextStart.Match(s => s, () => now);
 
+            if (request.IsTroubleshooting)
+            {
+                channel.Number = ".troubleshooting";
+
+                maybeDuration = TimeSpan.FromSeconds(30);
+                finish = now + TimeSpan.FromSeconds(30);
+            }
+
             _logger.LogWarning(
                 "Error locating playout item {@Error}. Will display error from {Start} to {Finish}",
                 error,
@@ -493,7 +516,8 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                         maybeDuration,
                         finish,
                         true,
-                        now.ToUnixTimeSeconds());
+                        now.ToUnixTimeSeconds(),
+                        Option<int>.None);
                 case PlayoutItemDoesNotExistOnDisk:
                     Command doesNotExistProcess = await _ffmpegProcessService.ForError(
                         ffmpegPath,
@@ -514,7 +538,8 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                         maybeDuration,
                         finish,
                         true,
-                        now.ToUnixTimeSeconds());
+                        now.ToUnixTimeSeconds(),
+                        Option<int>.None);
                 default:
                     Command errorProcess = await _ffmpegProcessService.ForError(
                         ffmpegPath,
@@ -535,7 +560,8 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                         maybeDuration,
                         finish,
                         true,
-                        now.ToUnixTimeSeconds());
+                        now.ToUnixTimeSeconds(),
+                        Option<int>.None);
             }
         }
 

ErsatzTV.Application/Streaming/Queries/GetWrappedProcessByChannelNumber.cs

@@ -15,7 +15,8 @@ public record GetWrappedProcessByChannelNumber : FFmpegProcessRequest
         false,
         true,
         DateTimeOffset.Now, // unused
-        TimeSpan.Zero)
+        TimeSpan.Zero,
+        Option<int>.None)
     {
         Scheme = scheme;
         Host = host;

ErsatzTV.Application/Streaming/Queries/GetWrappedProcessByChannelNumberHandler.cs

@@ -46,6 +46,7 @@ public class GetWrappedProcessByChannelNumberHandler : FFmpegProcessHandler<GetW
             Option<TimeSpan>.None,
             DateTimeOffset.MaxValue,
             true,
-            Option<long>.None);
+            Option<long>.None,
+            Option<int>.None);
     }
 }

ErsatzTV.Application/Troubleshooting/Commands/ArchiveTroubleshootingResults.cs

@@ -1,12 +1,3 @@
-using ErsatzTV.Core.Domain;
-
 namespace ErsatzTV.Application.Troubleshooting;
 
-public record ArchiveTroubleshootingResults(
-    int MediaItemId,
-    int FFmpegProfileId,
-    StreamingMode StreamingMode,
-    List<int> WatermarkIds,
-    List<int> GraphicsElementIds,
-    Option<int> SeekSeconds)
-    : IRequest<Option<string>>;
+public record ArchiveTroubleshootingResults : IRequest<Option<string>>;

ErsatzTV.Application/Troubleshooting/Commands/ArchiveTroubleshootingResultsHandler.cs

@@ -25,6 +25,12 @@ public class ArchiveTroubleshootingResultsHandler(ILocalFileSystem localFileSyst
                 continue;
             }
 
+            if (fileName.Equals("logs.txt", StringComparison.OrdinalIgnoreCase))
+            {
+                zipArchive.CreateEntryFromFile(file, fileName);
+                continue;
+            }
+
             if (Path.GetExtension(file).Equals(".json", StringComparison.OrdinalIgnoreCase))
             {
                 zipArchive.CreateEntryFromFile(file, fileName);

ErsatzTV.Application/Troubleshooting/Commands/PrepareTroubleshootingPlayback.cs

@@ -8,10 +8,12 @@ public record PrepareTroubleshootingPlayback(
     Guid SessionId,
     StreamingMode StreamingMode,
     int MediaItemId,
+    int ChannelId,
     int FFmpegProfileId,
     string StreamSelector,
     List<int> WatermarkIds,
     List<int> GraphicsElementIds,
     int? SubtitleId,
-    Option<int> SeekSeconds)
+    Option<int> SeekSeconds,
+    Option<DateTimeOffset> Start)
     : IRequest<Either<BaseError, PlayoutItemResult>>;

ErsatzTV.Application/Troubleshooting/Commands/PrepareTroubleshootingPlaybackHandler.cs

@@ -1,4 +1,5 @@
 using Dapper;
+using ErsatzTV.Application.Streaming;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
@@ -49,6 +50,70 @@ public class PrepareTroubleshootingPlaybackHandler(
         {
             using var logContext = LogContext.PushProperty(InMemoryLogService.CorrelationIdKey, request.SessionId);
             await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (request.ChannelId > 0)
+            {
+                if (request.Start.IsNone)
+                {
+                    return BaseError.New("Channel start is required");
+                }
+
+                if (entityLocker.IsTroubleshootingPlaybackLocked())
+                {
+                    return BaseError.New("Troubleshooting playback is locked");
+                }
+
+                entityLocker.LockTroubleshootingPlayback();
+
+                localFileSystem.EnsureFolderExists(FileSystemLayout.TranscodeTroubleshootingFolder);
+                localFileSystem.EmptyFolder(FileSystemLayout.TranscodeTroubleshootingFolder);
+
+                foreach (var start in request.Start)
+                {
+                    Option<Channel> maybeChannel = await dbContext.Channels
+                        .AsNoTracking()
+                        .SelectOneAsync(c => c.Id, c => c.Id == request.ChannelId, cancellationToken);
+
+                    foreach (var channel in maybeChannel)
+                    {
+                        Either<BaseError, PlayoutItemProcessModel> result = await mediator.Send(
+                            new GetPlayoutItemProcessByChannelNumber(
+                                channel.Number,
+                                request.StreamingMode,
+                                start,
+                                StartAtZero: false,
+                                HlsRealtime: false,
+                                start,
+                                TimeSpan.Zero,
+                                TargetFramerate: Option<int>.None,
+                                IsTroubleshooting: true,
+                                request.FFmpegProfileId),
+                            cancellationToken);
+
+                        foreach (var error in result.LeftToSeq())
+                        {
+                            await mediator.Publish(
+                                new PlaybackTroubleshootingCompletedNotification(
+                                    -1,
+#pragma warning disable CA2201
+                                    new Exception(error.ToString()),
+#pragma warning restore CA2201
+                                    Option<double>.None),
+                                cancellationToken);
+                            entityLocker.UnlockTroubleshootingPlayback();
+                        }
+
+                        return result.Map(model => new PlayoutItemResult(model.Process, model.GraphicsEngineContext, model.MediaItemId));
+                    }
+
+                    if (maybeChannel.IsNone)
+                    {
+                        entityLocker.UnlockTroubleshootingPlayback();
+                        return BaseError.New($"Channel {request.ChannelId} does not exist");
+                    }
+                }
+            }
+
             Validation<BaseError, Tuple<MediaItem, string, string, FFmpegProfile>> validation = await Validate(
                 dbContext,
                 request,
@@ -67,7 +132,9 @@ public class PrepareTroubleshootingPlaybackHandler(
         catch (Exception ex)
         {
             entityLocker.UnlockTroubleshootingPlayback();
-            await mediator.Publish(new PlaybackTroubleshootingCompletedNotification(-1, ex, Option<double>.None), cancellationToken);
+            await mediator.Publish(
+                new PlaybackTroubleshootingCompletedNotification(-1, ex, Option<double>.None),
+                cancellationToken);
             logger.LogError(ex, "Error while preparing troubleshooting playback");
             return BaseError.New(ex.Message);
         }
@@ -222,7 +289,7 @@ public class PrepareTroubleshootingPlaybackHandler(
         PlayoutItemResult playoutItemResult = await ffmpegProcessService.ForPlayoutItem(
             ffmpegPath,
             ffprobePath,
-            true,
+            saveReports: true,
             channel,
             new MediaItemVideoVersion(mediaItem, videoVersion),
             new MediaItemAudioVersion(mediaItem, version),

ErsatzTV.Application/Troubleshooting/Commands/StartTroubleshootingPlayback.cs

@@ -7,5 +7,5 @@ public record StartTroubleshootingPlayback(
     Guid SessionId,
     string StreamSelector,
     PlayoutItemResult PlayoutItemResult,
-    MediaItemInfo MediaItemInfo,
+    Option<MediaItemInfo> MediaItemInfo,
     TroubleshootingInfo TroubleshootingInfo) : IRequest, IFFmpegWorkerRequest;

ErsatzTV.Application/Troubleshooting/Commands/StartTroubleshootingPlaybackHandler.cs

@@ -45,11 +45,14 @@ public partial class StartTroubleshootingPlaybackHandler(
             using var logContext = LogContext.PushProperty(InMemoryLogService.CorrelationIdKey, request.SessionId);
 
             // write media info without title
-            string infoJson = JsonSerializer.Serialize(request.MediaItemInfo with { Title = null }, Options);
-            await File.WriteAllTextAsync(
-                Path.Combine(FileSystemLayout.TranscodeTroubleshootingFolder, "media_info.json"),
-                infoJson,
-                cancellationToken);
+            foreach (var mediaInfo in request.MediaItemInfo)
+            {
+                string infoJson = JsonSerializer.Serialize(mediaInfo with { Title = null }, Options);
+                await File.WriteAllTextAsync(
+                    Path.Combine(FileSystemLayout.TranscodeTroubleshootingFolder, "media_info.json"),
+                    infoJson,
+                    cancellationToken);
+            }
 
             // write troubleshooting info
             string troubleshootingInfoJson = JsonSerializer.Serialize(
@@ -140,6 +143,8 @@ public partial class StartTroubleshootingPlaybackHandler(
                     .WithValidation(CommandResultValidation.None)
                     .ExecuteAsync(linkedCts.Token);
 
+                logger.LogDebug("Troubleshooting playback completed with exit code {ExitCode}", commandResult.ExitCode);
+
                 try
                 {
                     IEnumerable<string> logs = logService.Sink.GetLogs(request.SessionId);
@@ -176,8 +181,6 @@ public partial class StartTroubleshootingPlaybackHandler(
                         maybeSpeed),
                     linkedCts.Token);
 
-                logger.LogDebug("Troubleshooting playback completed with exit code {ExitCode}", commandResult.ExitCode);
-
                 if (commandResult.ExitCode != 0)
                 {
                     await linkedCts.CancelAsync();

ErsatzTV.Core/FFmpeg/FFmpegLibraryProcessService.cs

@@ -566,7 +566,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             videoVersion.MediaVersion is BackgroundImageMediaVersion { IsSongWithProgress: true },
             false,
             GetTonemapAlgorithm(playbackSettings),
-            channel.UniqueId == Guid.Empty);
+            channel.Number == ".troubleshooting");
 
         _logger.LogDebug("FFmpeg desired state {FrameState}", desiredState);
 
@@ -598,7 +598,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             graphicsEngineInput,
             pipeline);
 
-        return new PlayoutItemResult(command, graphicsEngineContext);
+        return new PlayoutItemResult(command, graphicsEngineContext, videoVersion.MediaItem.Id);
     }
 
     private async Task<ScanKind> ProbeScanKind(
@@ -788,7 +788,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
         _logger.LogDebug("HW accel mode: {HwAccel}", hwAccel);
 
         var ffmpegState = new FFmpegState(
-            false,
+            channel.Number == ".troubleshooting",
             HardwareAccelerationMode.None, // no hw accel decode since errors loop
             hwAccel,
             VaapiDriverName(hwAccel, vaapiDriver),
@@ -812,7 +812,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             false,
             false,
             GetTonemapAlgorithm(playbackSettings),
-            channel.UniqueId == Guid.Empty);
+            channel.Number == ".troubleshooting");
 
         var ffmpegSubtitleStream = new ErsatzTV.FFmpeg.MediaStream(0, "ass", StreamKind.Video);
 
@@ -836,7 +836,9 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             VaapiDisplayName(hwAccel, vaapiDisplay),
             VaapiDriverName(hwAccel, vaapiDriver),
             VaapiDeviceName(hwAccel, vaapiDevice),
-            FileSystemLayout.FFmpegReportsFolder,
+            channel.Number == ".troubleshooting"
+                ? FileSystemLayout.TranscodeTroubleshootingFolder
+                : FileSystemLayout.FFmpegReportsFolder,
             FileSystemLayout.FontsCacheFolder,
             ffmpegPath);
 

ErsatzTV.Core/Interfaces/FFmpeg/PlayoutItemResult.cs

@@ -3,4 +3,8 @@ using ErsatzTV.Core.Interfaces.Streaming;
 
 namespace ErsatzTV.Core.Interfaces.FFmpeg;
 
-public record PlayoutItemResult(Command Process, Option<GraphicsEngineContext> GraphicsEngineContext);
+public record PlayoutItemResult(
+    Command Process,
+    Option<GraphicsEngineContext> GraphicsEngineContext,
+    Option<int> MediaItemId);
+

ErsatzTV.Infrastructure/Streaming/Graphics/Motion/MotionElement.cs

@@ -63,7 +63,7 @@ public class MotionElement(
             ProbeResult probeResult = await ProbeMotionElement(context.FrameSize);
             var overlayDuration = motionElement.EndBehavior switch
             {
-                MotionEndBehavior.Loop => context.Duration,
+                MotionEndBehavior.Loop => context.Seek + context.Duration,
                 MotionEndBehavior.Hold => probeResult.Duration + holdDuration,
                 _ => probeResult.Duration
             };

ErsatzTV/Controllers/Api/TroubleshootController.cs

@@ -29,6 +29,8 @@ public class TroubleshootController(
         [FromQuery]
         int mediaItem,
         [FromQuery]
+        int channel,
+        [FromQuery]
         int ffmpegProfile,
         [FromQuery]
         StreamingMode streamingMode,
@@ -42,6 +44,8 @@ public class TroubleshootController(
         int? subtitleId,
         [FromQuery]
         int seekSeconds,
+        [FromQuery]
+        DateTimeOffset? start,
         CancellationToken cancellationToken)
     {
         var sessionId = Guid.NewGuid();
@@ -56,12 +60,14 @@ public class TroubleshootController(
                     sessionId,
                     streamingMode,
                     mediaItem,
+                    channel,
                     ffmpegProfile,
                     streamSelector,
                     watermark,
                     graphicsElement,
                     subtitleId,
-                    ss),
+                    ss,
+                    Optional(start)),
                 cancellationToken);
 
             if (result.IsLeft)
@@ -72,75 +78,75 @@ public class TroubleshootController(
             foreach (PlayoutItemResult playoutItemResult in result.RightToSeq())
             {
                 Either<BaseError, MediaItemInfo> maybeMediaInfo =
-                    await mediator.Send(new GetMediaItemInfo(mediaItem), cancellationToken);
-                foreach (MediaItemInfo mediaInfo in maybeMediaInfo.RightToSeq())
+                    await mediator.Send(
+                        new GetMediaItemInfo(await playoutItemResult.MediaItemId.IfNoneAsync(0)),
+                        cancellationToken);
+
+                try
                 {
-                    try
+                    TroubleshootingInfo troubleshootingInfo = await mediator.Send(
+                        new GetTroubleshootingInfo(),
+                        cancellationToken);
+
+                    // filter ffmpeg profiles
+                    troubleshootingInfo.FFmpegProfiles.RemoveAll(p => p.Id != ffmpegProfile);
+
+                    // filter watermarks
+                    troubleshootingInfo.Watermarks.RemoveAll(p => !watermark.Contains(p.Id));
+
+                    await channelWriter.WriteAsync(
+                        new StartTroubleshootingPlayback(
+                            sessionId,
+                            streamSelector,
+                            playoutItemResult,
+                            maybeMediaInfo.ToOption(),
+                            troubleshootingInfo),
+                        cancellationToken);
+
+                    string playlistFile = Path.Combine(FileSystemLayout.TranscodeTroubleshootingFolder, "live.m3u8");
+                    while (!localFileSystem.FileExists(playlistFile))
                     {
-                        TroubleshootingInfo troubleshootingInfo = await mediator.Send(
-                            new GetTroubleshootingInfo(),
-                            cancellationToken);
-
-                        // filter ffmpeg profiles
-                        troubleshootingInfo.FFmpegProfiles.RemoveAll(p => p.Id != ffmpegProfile);
-
-                        // filter watermarks
-                        troubleshootingInfo.Watermarks.RemoveAll(p => !watermark.Contains(p.Id));
-
-                        await channelWriter.WriteAsync(
-                            new StartTroubleshootingPlayback(
-                                sessionId,
-                                streamSelector,
-                                playoutItemResult,
-                                mediaInfo,
-                                troubleshootingInfo),
-                            cancellationToken);
-
-                        string playlistFile = Path.Combine(FileSystemLayout.TranscodeTroubleshootingFolder, "live.m3u8");
-                        while (!localFileSystem.FileExists(playlistFile))
+                        await Task.Delay(TimeSpan.FromMilliseconds(100), cancellationToken);
+                        if (cancellationToken.IsCancellationRequested || notifier.IsFailed(sessionId))
                         {
-                            await Task.Delay(TimeSpan.FromMilliseconds(100), cancellationToken);
-                            if (cancellationToken.IsCancellationRequested || notifier.IsFailed(sessionId))
-                            {
-                                break;
-                            }
+                            break;
                         }
+                    }
+
+                    int initialSegmentCount = await configElementRepository
+                        .GetValue<int>(ConfigElementKey.FFmpegInitialSegmentCount, cancellationToken)
+                        .Map(maybeCount => maybeCount.Match(c => c, () => 1));
 
-                        int initialSegmentCount = await configElementRepository
-                            .GetValue<int>(ConfigElementKey.FFmpegInitialSegmentCount, cancellationToken)
-                            .Map(maybeCount => maybeCount.Match(c => c, () => 1));
+                    initialSegmentCount = Math.Max(initialSegmentCount, 2);
 
-                        initialSegmentCount = Math.Max(initialSegmentCount, 2);
+                    bool hasSegments = false;
+                    while (!hasSegments)
+                    {
+                        await Task.Delay(TimeSpan.FromMilliseconds(100), cancellationToken);
 
-                        bool hasSegments = false;
-                        while (!hasSegments)
+                        string[] segmentFiles = streamingMode switch
                         {
-                            await Task.Delay(TimeSpan.FromMilliseconds(100), cancellationToken);
-
-                            string[] segmentFiles = streamingMode switch
-                            {
-                                // StreamingMode.HttpLiveStreamingSegmenter => Directory.GetFiles(
-                                //     FileSystemLayout.TranscodeTroubleshootingFolder,
-                                //     "*.m4s"),
-                                _ => Directory.GetFiles(FileSystemLayout.TranscodeTroubleshootingFolder, "*.ts")
-                            };
-
-                            if (segmentFiles.Length >= initialSegmentCount)
-                            {
-                                hasSegments = true;
-                            }
-                        }
+                            // StreamingMode.HttpLiveStreamingSegmenter => Directory.GetFiles(
+                            //     FileSystemLayout.TranscodeTroubleshootingFolder,
+                            //     "*.m4s"),
+                            _ => Directory.GetFiles(FileSystemLayout.TranscodeTroubleshootingFolder, "*.ts")
+                        };
 
-                        if (!notifier.IsFailed(sessionId))
+                        if (segmentFiles.Length >= initialSegmentCount)
                         {
-                            return Redirect("~/iptv/session/.troubleshooting/live.m3u8");
+                            hasSegments = true;
                         }
                     }
-                    finally
+
+                    if (!notifier.IsFailed(sessionId))
                     {
-                        notifier.RemoveSession(sessionId);
+                        return Redirect("~/iptv/session/.troubleshooting/live.m3u8");
                     }
                 }
+                finally
+                {
+                    notifier.RemoveSession(sessionId);
+                }
             }
         }
         catch (Exception)
@@ -153,33 +159,9 @@ public class TroubleshootController(
 
     [HttpHead("api/troubleshoot/playback/archive")]
     [HttpGet("api/troubleshoot/playback/archive")]
-    public async Task<IActionResult> TroubleshootPlaybackArchive(
-        [FromQuery]
-        int mediaItem,
-        [FromQuery]
-        int ffmpegProfile,
-        [FromQuery]
-        StreamingMode streamingMode,
-        [FromQuery]
-        List<int> watermark,
-        [FromQuery]
-        List<int> graphicsElement,
-        [FromQuery]
-        int seekSeconds,
-        CancellationToken cancellationToken)
+    public async Task<IActionResult> TroubleshootPlaybackArchive(CancellationToken cancellationToken)
     {
-        Option<int> ss = seekSeconds > 0 ? seekSeconds : Option<int>.None;
-
-        Option<string> maybeArchivePath = await mediator.Send(
-            new ArchiveTroubleshootingResults(
-                mediaItem,
-                ffmpegProfile,
-                streamingMode,
-                watermark,
-                graphicsElement,
-                ss),
-            cancellationToken);
-
+        Option<string> maybeArchivePath = await mediator.Send(new ArchiveTroubleshootingResults(), cancellationToken);
         foreach (string archivePath in maybeArchivePath)
         {
             FileStream fs = System.IO.File.OpenRead(archivePath);

ErsatzTV/Controllers/InternalController.cs

@@ -259,6 +259,8 @@ public class InternalController : StreamingControllerBase
             true,
             DateTimeOffset.Now,
             TimeSpan.Zero,
+            Option<int>.None,
+            IsTroubleshooting: false,
             Option<int>.None);
 
         Either<BaseError, PlayoutItemProcessModel> result = await _mediator.Send(request);

ErsatzTV/Controllers/IptvController.cs

@@ -346,6 +346,8 @@ public class IptvController : StreamingControllerBase
             true,
             DateTimeOffset.Now,
             TimeSpan.Zero,
+            Option<int>.None,
+            IsTroubleshooting: false,
             Option<int>.None);
 
         Either<BaseError, PlayoutItemProcessModel> result = await _mediator.Send(request);

ErsatzTV/ErsatzTV.csproj

@@ -30,6 +30,7 @@
         <PackageReference Include="Blazored.FluentValidation" Version="2.2.0" />
         <PackageReference Include="BlazorSortable" Version="5.1.4" />
         <PackageReference Include="Bugsnag.AspNet.Core" Version="4.1.0" />
+        <PackageReference Include="Chronic.Core" Version="0.4.0" />
         <PackageReference Include="FluentValidation" Version="12.1.0" />
         <PackageReference Include="FluentValidation.AspNetCore" Version="11.3.1" />
         <PackageReference Include="Heron.MudCalendar" Version="3.3.0" />

ErsatzTV/Pages/Channels.razor

@@ -36,7 +36,7 @@
                         <col style="width: 15%"/>
                         <col style="width: 15%"/>
                         <col style="width: 15%"/>
-                        <col style="width: 240px;"/>
+                        <col style="width: 300px;"/>
                     </MudHidden>
                 </ColGroup>
                 <HeaderContent>
@@ -110,13 +110,25 @@
                             }
                             else
                             {
-                                <div style="width: 48px"></div>
+                            <div style="width: 48px"></div>
                             }
                             <MudTooltip Text="Edit Channel">
                                 <MudIconButton Icon="@Icons.Material.Filled.Edit"
                                                Href="@($"channels/{context.Id}")">
                                 </MudIconButton>
                             </MudTooltip>
+                            @if (context.PlayoutCount > 0)
+                            {
+                                <MudTooltip Text="Troubleshoot Channel">
+                                    <MudIconButton Icon="@Icons.Material.Filled.Troubleshoot"
+                                                   Href="@($"system/troubleshooting/playback?channel={context.Id}")">
+                                    </MudIconButton>
+                                </MudTooltip>
+                            }
+                            else
+                            {
+                                <div style="width: 48px"></div>
+                            }
                             <MudTooltip Text="Delete Channel">
                                 <MudIconButton Icon="@Icons.Material.Filled.Delete"
                                                OnClick="@(_ => DeleteChannelAsync(context))">

ErsatzTV/Pages/Troubleshooting/PlaybackTroubleshooting.razor

@@ -1,4 +1,5 @@
 @page "/system/troubleshooting/playback"
+@using System.Globalization
 @using ErsatzTV.Application.Channels
 @using ErsatzTV.Application.FFmpegProfiles
 @using ErsatzTV.Application.Graphics
@@ -32,21 +33,21 @@
     </MudPaper>
     <div class="d-flex flex-column" style="height: 100vh; overflow-x: auto">
         <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8">
-            <MudText Typo="Typo.h5" Class="mb-2">Media Item</MudText>
-            <MudDivider Class="mb-6"/>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Media Item ID</MudText>
-                </div>
-                <MudTextField T="int?" Value="MediaItemId" ValueChanged="@(async x => await OnMediaItemIdChanged(x, CancellationToken.None))"/>
-            </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Title</MudText>
-                </div>
-                <MudTextField Value="@(_info?.Title)" Disabled="true"/>
-            </MudStack>
-            <MudText Typo="Typo.h5" Class="mt-10 mb-2">Playback Settings</MudText>
+            <MudText Typo="Typo.h5" Class="mb-2">
+                @if (_channelMode)
+                {
+                    @:Channel
+                }
+                else
+                {
+                    @(_info?.Kind ?? "Playback")
+                }
+                Settings
+                @if (!string.IsNullOrWhiteSpace(_title))
+                {
+                    @: - @_title
+                }
+            </MudText>
             <MudDivider Class="mb-6"/>
             <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
                 <div class="d-flex">
@@ -70,55 +71,67 @@
                     }
                 </MudSelect>
             </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Subtitle</MudText>
-                </div>
-                <MudSelect @bind-Value="_subtitleId" For="@(() => _subtitleId)" Clearable="true" Disabled="@(!string.IsNullOrWhiteSpace(_streamSelector))">
-                    <MudSelectItem T="int?" Value="@((int?)null)">(none)</MudSelectItem>
-                    @foreach (SubtitleViewModel subtitleStream in _subtitleStreams)
-                    {
-                        <MudSelectItem T="int?" Value="@subtitleStream.Id">@($"{subtitleStream.Id}: {subtitleStream.Language} - {subtitleStream.Title} ({subtitleStream.Codec})")</MudSelectItem>
-                    }
-                </MudSelect>
-            </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Watermarks</MudText>
-                </div>
-                <MudSelect T="string" @bind-SelectedValues="_watermarkNames" Clearable="true" MultiSelection="true">
-                    @foreach (WatermarkViewModel watermark in _watermarks)
-                    {
-                        <MudSelectItem T="string" Value="@watermark.Name">@watermark.Name</MudSelectItem>
-                    }
-                </MudSelect>
-            </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Graphics Elements</MudText>
-                </div>
-                <MudSelect T="string" @bind-SelectedValues="_graphicsElementNames" Clearable="true" MultiSelection="true">
-                    @foreach (GraphicsElementViewModel graphicsElement in _graphicsElements)
-                    {
-                        <MudSelectItem T="string" Value="@graphicsElement.Name">@graphicsElement.Name</MudSelectItem>
-                    }
-                </MudSelect>
-            </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Start From Beginning</MudText>
-                </div>
-                <MudCheckBox T="bool"
-                             Dense="true"
-                             Disabled="@(string.Equals(_info?.Kind, "RemoteStream", StringComparison.OrdinalIgnoreCase))"
-                             ValueChanged="@(c => OnStartFromBeginningChanged(c))"/>
-            </MudStack>
-            <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
-                <div class="d-flex">
-                    <MudText>Seek Seconds</MudText>
-                </div>
-                <MudTextField @bind-Value="@(_seekSeconds)" Disabled="@(_startFromBeginning)"/>
-            </MudStack>
+            @if (_channelMode)
+            {
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Date and Time</MudText>
+                    </div>
+                    <MudTextField T="string" @bind-Value="_startString" OnBlur="@OnStartStringBlur" />
+                </MudStack>
+            }
+            else
+            {
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Subtitle</MudText>
+                    </div>
+                    <MudSelect @bind-Value="_subtitleId" For="@(() => _subtitleId)" Clearable="true" Disabled="@(!string.IsNullOrWhiteSpace(_streamSelector))">
+                        <MudSelectItem T="int?" Value="@((int?)null)">(none)</MudSelectItem>
+                        @foreach (SubtitleViewModel subtitleStream in _subtitleStreams)
+                        {
+                            <MudSelectItem T="int?" Value="@subtitleStream.Id">@($"{subtitleStream.Id}: {subtitleStream.Language} - {subtitleStream.Title} ({subtitleStream.Codec})")</MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Watermarks</MudText>
+                    </div>
+                    <MudSelect T="string" @bind-SelectedValues="_watermarkNames" Clearable="true" MultiSelection="true">
+                        @foreach (WatermarkViewModel watermark in _watermarks)
+                        {
+                            <MudSelectItem T="string" Value="@watermark.Name">@watermark.Name</MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Graphics Elements</MudText>
+                    </div>
+                    <MudSelect T="string" @bind-SelectedValues="_graphicsElementNames" Clearable="true" MultiSelection="true">
+                        @foreach (GraphicsElementViewModel graphicsElement in _graphicsElements)
+                        {
+                            <MudSelectItem T="string" Value="@graphicsElement.Name">@graphicsElement.Name</MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Start From Beginning</MudText>
+                    </div>
+                    <MudCheckBox T="bool"
+                                 Dense="true"
+                                 Disabled="@(string.Equals(_info?.Kind, "RemoteStream", StringComparison.OrdinalIgnoreCase))"
+                                 ValueChanged="@(c => OnStartFromBeginningChanged(c))"/>
+                </MudStack>
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Seek Seconds</MudText>
+                    </div>
+                    <MudTextField @bind-Value="@(_seekSeconds)" Disabled="@(_startFromBeginning)"/>
+                </MudStack>
+            }
             <MudText Typo="Typo.h5" Class="mt-10 mb-2">Preview</MudText>
             <MudDivider Class="mb-6"/>
             <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
@@ -126,7 +139,7 @@
                 <MudButton Variant="Variant.Filled"
                            Color="Color.Primary"
                            StartIcon="@Icons.Material.Filled.PlayCircle"
-                           Disabled="@(Locker.IsTroubleshootingPlaybackLocked() || MediaItemId is null)"
+                           Disabled="@(Locker.IsTroubleshootingPlaybackLocked() || (_channelMode && !_start.HasValue))"
                            OnClick="@PreviewChannel">
                     Play
                 </MudButton>
@@ -155,7 +168,7 @@
             }
             <MudDivider Class="mb-6"/>
             <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="gap-md-8 mb-5">
-                <MudTextField @bind-Value="_logs" ReadOnly="true" Lines="20" Variant="Variant.Outlined" />
+                <MudTextField T="string" @ref="_logsField" ReadOnly="true" Lines="20" Variant="Variant.Outlined" />
             </MudStack>
             <div class="mb-6">
                 <br/>
@@ -168,14 +181,17 @@
 @code {
     private CancellationTokenSource _cts;
 
+    private readonly DateTimeFormatInfo _dtf = CultureInfo.CurrentUICulture.DateTimeFormat;
     private readonly List<FFmpegProfileViewModel> _ffmpegProfiles = [];
     private readonly List<string> _streamSelectors = [];
     private readonly List<WatermarkViewModel> _watermarks = [];
     private readonly List<SubtitleViewModel> _subtitleStreams = [];
     private readonly List<GraphicsElementViewModel> _graphicsElements = [];
+    private string _title;
     private MediaItemInfo _info;
     private readonly StreamingMode _streamingMode = StreamingMode.HttpLiveStreamingSegmenter;
     private int _ffmpegProfileId;
+    private bool _channelMode;
     private string _streamSelector;
     private IEnumerable<string> _watermarkNames = new System.Collections.Generic.HashSet<string>();
     private IEnumerable<string> _graphicsElementNames = new System.Collections.Generic.HashSet<string>();
@@ -184,11 +200,16 @@
     private int _seekSeconds;
     private bool _hasPlayed;
     private double? _lastSpeed;
-    private string _logs;
+    private MudTextField<string> _logsField;
+    private DateTimeOffset? _start;
+    private string _startString;
 
     [SupplyParameterFromQuery(Name = "mediaItem")]
     public int? MediaItemId { get; set; }
 
+    [SupplyParameterFromQuery(Name = "channel")]
+    public int? ChannelId { get; set; }
+
     public void Dispose()
     {
         _cts?.Cancel();
@@ -230,7 +251,17 @@
 
             if (MediaItemId is not null)
             {
-                await OnMediaItemIdChanged(MediaItemId, token);
+                _channelMode = false;
+                await LoadMediaItem(MediaItemId.Value, token);
+            }
+            else if (ChannelId is not null)
+            {
+                _channelMode = true;
+                await LoadChannel(ChannelId.Value, token);
+            }
+            else
+            {
+                NavigationManager.NavigateTo("", new NavigationOptions { ReplaceHistoryEntry = true });
             }
         }
         catch (OperationCanceledException)
@@ -249,19 +280,39 @@
 
     private async Task PreviewChannel()
     {
-        _logs = null;
+        await _logsField.SetText(string.Empty);
         _lastSpeed = null;
 
         var baseUri = NavigationManager.ToAbsoluteUri(NavigationManager.Uri).ToString();
         string apiUri = baseUri.Replace("/system/troubleshooting/playback", "/api/troubleshoot/playback.m3u8");
         var queryString = new List<KeyValuePair<string, string>>
         {
-            new("mediaItem", (MediaItemId ?? 0).ToString()),
             new("ffmpegProfile", _ffmpegProfileId.ToString()),
             new("streamingMode", ((int)_streamingMode).ToString()),
-            new("seekSeconds", _seekSeconds.ToString())
         };
 
+        if (_channelMode)
+        {
+            if (!_start.HasValue)
+            {
+                return;
+            }
+
+            queryString.AddRange(
+            [
+                new KeyValuePair<string, string>("channel", (ChannelId ?? 0).ToString()),
+                new KeyValuePair<string, string>("start", _start!.Value.ToString("o"))
+            ]);
+        }
+        else
+        {
+            queryString.AddRange(
+            [
+                new KeyValuePair<string, string>("mediaItem", (MediaItemId ?? 0).ToString()),
+                new KeyValuePair<string, string>("seekSeconds", _seekSeconds.ToString())
+            ]);
+        }
+
         foreach (string watermarkName in _watermarkNames)
         {
             foreach (WatermarkViewModel watermark in _watermarks.Where(wm => wm.Name == watermarkName))
@@ -295,66 +346,65 @@
         _hasPlayed = true;
     }
 
-    private async Task OnMediaItemIdChanged(int? mediaItemId, CancellationToken cancellationToken)
+    private async Task LoadMediaItem(int mediaItemId, CancellationToken cancellationToken)
     {
-        MediaItemId = mediaItemId;
         _hasPlayed = false;
+        _info = null;
 
-        foreach (int id in Optional(mediaItemId))
+        Either<BaseError, MediaItemInfo> maybeInfo = await Mediator.Send(new GetMediaItemInfo(mediaItemId), cancellationToken);
+        foreach (MediaItemInfo info in maybeInfo.RightToSeq())
         {
-            Either<BaseError, MediaItemInfo> maybeInfo = await Mediator.Send(new GetMediaItemInfo(id), cancellationToken);
-            foreach (MediaItemInfo info in maybeInfo.RightToSeq())
-            {
-                _info = info;
-                OnStartFromBeginningChanged(string.Equals(info.Kind, "RemoteStream", StringComparison.OrdinalIgnoreCase));
+            IEnumerable<char> kindString = info.Kind.SelectMany((c, i) => i != 0 && char.IsUpper(c) && !char.IsUpper(info.Kind[i - 1]) ? new[] { ' ', c } : new[] { c });
+            _info = info with { Kind = new string(kindString.ToArray()) };
+            _title = info.Title;
 
-                _subtitleId = null;
-                _subtitleStreams.Clear();
-                _subtitleStreams.AddRange(await Mediator.Send(new GetTroubleshootingSubtitles(id), cancellationToken));
-            }
+            OnStartFromBeginningChanged(string.Equals(info.Kind, "RemoteStream", StringComparison.OrdinalIgnoreCase));
 
-            if (maybeInfo.IsLeft)
-            {
-                MediaItemId = null;
-            }
+            _subtitleId = null;
+            _subtitleStreams.Clear();
+            _subtitleStreams.AddRange(await Mediator.Send(new GetTroubleshootingSubtitles(mediaItemId), cancellationToken));
+        }
+
+        if (maybeInfo.IsLeft)
+        {
+            NavigationManager.NavigateTo("", new NavigationOptions { ReplaceHistoryEntry = true });
         }
 
         StateHasChanged();
     }
 
-    private async Task DownloadResults()
+    private async Task LoadChannel(int channelId, CancellationToken cancellationToken)
     {
-        var queryString = new List<KeyValuePair<string, string>>
-        {
-            new("mediaItem", (MediaItemId ?? 0).ToString()),
-            new("ffmpegProfile", _ffmpegProfileId.ToString()),
-            new("streamingMode", ((int)_streamingMode).ToString()),
-            new("seekSeconds", _seekSeconds.ToString())
-        };
+        _hasPlayed = false;
+        _info = null;
 
-        foreach (string watermarkName in _watermarkNames)
+        Option<ChannelViewModel> maybeChannel = await Mediator.Send(new GetChannelById(channelId), cancellationToken);
+        foreach (ChannelViewModel channel in maybeChannel)
         {
-            foreach (WatermarkViewModel watermark in _watermarks.Where(wm => wm.Name == watermarkName))
+            _title = channel.Name;
+            _ffmpegProfileId = channel.FFmpegProfileId;
+            if (channel.StreamSelectorMode is ChannelStreamSelectorMode.Custom)
             {
-                queryString.Add(new KeyValuePair<string, string>("watermark", watermark.Id.ToString()));
+                _streamSelector = channel.StreamSelector;
             }
         }
 
-        foreach (string graphicsElementName in _graphicsElementNames)
+        if (maybeChannel.IsNone)
         {
-            foreach (GraphicsElementViewModel graphicsElement in _graphicsElements.Where(ge => ge.Name == graphicsElementName))
-            {
-                queryString.Add(new KeyValuePair<string, string>("graphicsElement", graphicsElement.Id.ToString()));
-            }
+            NavigationManager.NavigateTo("", new NavigationOptions { ReplaceHistoryEntry = true });
         }
 
-        string uriWithQuery = QueryHelpers.AddQueryString("api/troubleshoot/playback/archive", queryString);
-        await JsRuntime.InvokeVoidAsync("window.open", uriWithQuery);
+        StateHasChanged();
+    }
+
+    private async Task DownloadResults()
+    {
+        await JsRuntime.InvokeVoidAsync("window.open", "api/troubleshoot/playback/archive");
     }
 
-    private void HandleTroubleshootingCompleted(PlaybackTroubleshootingCompletedNotification result)
+    private async Task HandleTroubleshootingCompleted(PlaybackTroubleshootingCompletedNotification result)
     {
-        _logs = null;
+        await InvokeAsync(async () => { await _logsField.SetText(string.Empty); });
         _lastSpeed = null;
 
         foreach (double speed in result.MaybeSpeed)
@@ -374,15 +424,15 @@
         string logFileName = Path.Combine(FileSystemLayout.TranscodeTroubleshootingFolder, "logs.txt");
         if (LocalFileSystem.FileExists(logFileName))
         {
-            _logs = File.ReadAllText(logFileName);
-            InvokeAsync(StateHasChanged);
+            string text = await File.ReadAllTextAsync(logFileName);
+            await InvokeAsync(async () => { await _logsField.SetText(text); });
         }
         else
         {
             foreach (var exception in result.MaybeException)
             {
-                _logs = exception.Message + Environment.NewLine + Environment.NewLine + exception;
-                InvokeAsync(StateHasChanged);
+                string text = exception.Message + Environment.NewLine + Environment.NewLine + exception;
+                await InvokeAsync(async () => { await _logsField.SetText(text); });
             }
         }
     }
@@ -402,4 +452,26 @@
         return "mud-warning-text";
     }
 
+    private async Task OnStartStringBlur(FocusEventArgs e)
+    {
+        await TryNormalizeStartString();
+    }
+
+    private async Task TryNormalizeStartString()
+    {
+        if (string.IsNullOrWhiteSpace(_startString))
+        {
+            _start = null;
+            return;
+        }
+
+        var parser = new Chronic.Core.Parser();
+        var parsedResult = parser.Parse(_startString);
+        if (DateTimeOffset.TryParse(parsedResult?.Start?.ToString() ?? _startString, out DateTimeOffset dateTimeOffset))
+        {
+            _start = dateTimeOffset;
+            await InvokeAsync(() => { _startString = dateTimeOffset.ToString("G", _dtf); });
+        }
+    }
+
 }

ErsatzTV/Pages/Troubleshooting/Troubleshooting.razor

@@ -17,14 +17,17 @@
                 <MudTabPanel Text="Tools">
                     <MudPaper Class="pa-6" Style="max-height: 500px">
                         <MudStack>
+                        <!--
                             <MudButton Variant="Variant.Filled"
                                        Color="Color.Secondary"
                                        StartIcon="@Icons.Material.Filled.Troubleshoot"
                                        Href="system/troubleshooting/playback"
                                        Style="margin-right: auto"
+                                       Disabled="true"
                                        Class="mt-6">
                                 Playback Troubleshooting
                             </MudButton>
+                            -->
                             <MudButton Variant="Variant.Filled"
                                        Color="Color.Secondary"
                                        StartIcon="@Icons.Material.Filled.Checklist"