add channel streaming engine setting (#2852)

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+### Added
+- Add `Streaming Engine` setting to Channel
+  - `Legacy` - (default) uses existing streaming engine
+  - `Next` - will use ErsatzTV Next streaming engine, when it is compatible with ErsatzTV Legacy
 
 ## [26.4.0] - 2026-04-18
 ### Changed

ErsatzTV.Application/Channels/ChannelViewModel.cs

@@ -21,6 +21,7 @@ public record ChannelViewModel(
     ChannelPlayoutMode PlayoutMode,
     int? MirrorSourceChannelId,
     TimeSpan? PlayoutOffset,
+    StreamingEngine StreamingEngine,
     StreamingMode StreamingMode,
     int? WatermarkId,
     int? FallbackFillerId,

ErsatzTV.Application/Channels/Commands/CreateChannel.cs

@@ -20,6 +20,7 @@ public record CreateChannel(
     ChannelPlayoutMode PlayoutMode,
     int? MirrorSourceChannelId,
     TimeSpan? PlayoutOffset,
+    StreamingEngine StreamingEngine,
     StreamingMode StreamingMode,
     int? WatermarkId,
     int? FallbackFillerId,

ErsatzTV.Application/Channels/Commands/CreateChannelHandler.cs

@@ -85,6 +85,7 @@ public class CreateChannelHandler(
                 PlayoutMode = request.PlayoutMode,
                 MirrorSourceChannelId = request.MirrorSourceChannelId,
                 PlayoutOffset = request.PlayoutOffset,
+                StreamingEngine = request.StreamingEngine,
                 StreamingMode = request.StreamingMode,
                 Artwork = artwork,
                 StreamSelectorMode = request.StreamSelectorMode,
@@ -112,6 +113,11 @@ public class CreateChannelHandler(
                 channel.PlayoutOffset = null;
             }
 
+            if (channel.StreamingEngine is StreamingEngine.Next)
+            {
+                channel.StreamingMode = StreamingMode.HttpLiveStreamingSegmenter;
+            }
+
             foreach (int id in watermarkId)
             {
                 channel.WatermarkId = id;

ErsatzTV.Application/Channels/Commands/UpdateChannel.cs

@@ -21,6 +21,7 @@ public record UpdateChannel(
     ChannelPlayoutMode PlayoutMode,
     int? MirrorSourceChannelId,
     TimeSpan? PlayoutOffset,
+    StreamingEngine StreamingEngine,
     StreamingMode StreamingMode,
     int? WatermarkId,
     int? FallbackFillerId,

ErsatzTV.Application/Channels/Commands/UpdateChannelHandler.cs

@@ -131,10 +131,16 @@ public class UpdateChannelHandler(
 
         c.MirrorSourceChannelId = update.MirrorSourceChannelId;
         c.PlayoutOffset = update.PlayoutOffset;
+        c.StreamingEngine = update.StreamingEngine;
         c.StreamingMode = update.StreamingMode;
         c.WatermarkId = update.WatermarkId;
         c.FallbackFillerId = update.FallbackFillerId;
 
+        if (c.StreamingEngine is StreamingEngine.Next)
+        {
+            c.StreamingMode = StreamingMode.HttpLiveStreamingSegmenter;
+        }
+
         await dbContext.SaveChangesAsync(cancellationToken);
 
         searchTargets.SearchTargetsChanged();

ErsatzTV.Application/Channels/Mapper.cs

@@ -24,6 +24,7 @@ internal static class Mapper
             channel.PlayoutMode,
             channel.MirrorSourceChannelId,
             channel.PlayoutOffset,
+            channel.StreamingEngine,
             channel.StreamingMode,
             channel.WatermarkId,
             channel.FallbackFillerId,

ErsatzTV.Core/Domain/Channel.cs

@@ -22,6 +22,7 @@ public class Channel
     public ChannelWatermark Watermark { get; set; }
     public int? FallbackFillerId { get; set; }
     public FillerPreset FallbackFiller { get; set; }
+    public StreamingEngine StreamingEngine { get; set; }
     public StreamingMode StreamingMode { get; set; }
     public List<Playout> Playouts { get; set; }
     public List<Artwork> Artwork { get; set; }

ErsatzTV.Core/Domain/StreamingEngine.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Domain;
+
+public enum StreamingEngine
+{
+    Legacy = 0,
+    Next = 1
+}

ErsatzTV.Core/SystemEnvironment.cs

@@ -60,6 +60,8 @@ public class SystemEnvironment
         JellyfinPageSize = jellyfinPageSize;
 
         JellyfinEnableStats = !string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("ETV_JF_ENABLE_STATS"));
+
+        NextFolder = Environment.GetEnvironmentVariable("ETV_NEXT_FOLDER");
     }
 
     public static string BaseUrl { get; }
@@ -74,4 +76,5 @@ public class SystemEnvironment
     public static int? SlowApiMs { get; }
     public static int JellyfinPageSize { get; }
     public static bool JellyfinEnableStats { get; }
+    public static string NextFolder { get; }
 }

ErsatzTV.Infrastructure.MySql/Migrations/20260419030532_Add_ChannelStreamingEngine.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.MySql.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_ChannelStreamingEngine : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "StreamingEngine",
+                table: "Channel",
+                type: "int",
+                nullable: false,
+                defaultValue: 0);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StreamingEngine",
+                table: "Channel");
+        }
+    }
+}

ErsatzTV.Infrastructure.MySql/Migrations/TvContextModelSnapshot.cs

@@ -17,7 +17,7 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "9.0.12")
+                .HasAnnotation("ProductVersion", "9.0.15")
                 .HasAnnotation("Relational:MaxIdentifierLength", 64);
 
             MySqlModelBuilderExtensions.AutoIncrementColumns(modelBuilder);
@@ -372,6 +372,9 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                     b.Property<int>("StreamSelectorMode")
                         .HasColumnType("int");
 
+                    b.Property<int>("StreamingEngine")
+                        .HasColumnType("int");
+
                     b.Property<int>("StreamingMode")
                         .HasColumnType("int");
 

ErsatzTV.Infrastructure.Sqlite/Migrations/20260419030448_Add_ChannelStreamingEngine.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_ChannelStreamingEngine : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "StreamingEngine",
+                table: "Channel",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: 0);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StreamingEngine",
+                table: "Channel");
+        }
+    }
+}

ErsatzTV.Infrastructure.Sqlite/Migrations/TvContextModelSnapshot.cs

@@ -15,7 +15,7 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
         protected override void BuildModel(ModelBuilder modelBuilder)
         {
 #pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "9.0.12");
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.15");
 
             modelBuilder.Entity("ErsatzTV.Core.Domain.Actor", b =>
                 {
@@ -359,6 +359,9 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
                     b.Property<int>("StreamSelectorMode")
                         .HasColumnType("INTEGER");
 
+                    b.Property<int>("StreamingEngine")
+                        .HasColumnType("INTEGER");
+
                     b.Property<int>("StreamingMode")
                         .HasColumnType("INTEGER");
 

ErsatzTV/Pages/ChannelEditor.razor

@@ -131,15 +131,31 @@ else
     </div>
     <MudCheckBox @bind-Value="_model.ShowInEpg" For="@(() => _model.ShowInEpg)" Dense="true"/>
 </MudStack>
+<MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+    <div class="d-flex">
+        <MudText>Streaming Engine</MudText>
+    </div>
+    <MudSelect @bind-Value="_model.StreamingEngine" For="@(() => _model.StreamingEngine)">
+        <MudSelectItem Value="@(StreamingEngine.Legacy)">Legacy</MudSelectItem>
+        <MudSelectItem Value="@(StreamingEngine.Next)">Next</MudSelectItem>
+    </MudSelect>
+</MudStack>
 <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
     <div class="d-flex">
         <MudText>Streaming Mode</MudText>
     </div>
     <MudSelect @bind-Value="_model.StreamingMode" For="@(() => _model.StreamingMode)">
-        <MudSelectItem Value="@(StreamingMode.TransportStreamHybrid)">MPEG-TS</MudSelectItem>
-        <MudSelectItem Value="@(StreamingMode.TransportStream)">MPEG-TS (Legacy)</MudSelectItem>
-        <MudSelectItem Value="@(StreamingMode.HttpLiveStreamingDirect)">HLS Direct</MudSelectItem>
-        <MudSelectItem Value="@(StreamingMode.HttpLiveStreamingSegmenter)">HLS Segmenter</MudSelectItem>
+        @if (_model.StreamingEngine is StreamingEngine.Next)
+        {
+            <MudSelectItem Value="@(StreamingMode.HttpLiveStreamingSegmenter)">HLS Segmenter</MudSelectItem>
+        }
+        else
+        {
+            <MudSelectItem Value="@(StreamingMode.TransportStreamHybrid)">MPEG-TS</MudSelectItem>
+            <MudSelectItem Value="@(StreamingMode.TransportStream)">MPEG-TS (Legacy)</MudSelectItem>
+            <MudSelectItem Value="@(StreamingMode.HttpLiveStreamingDirect)">HLS Direct</MudSelectItem>
+            <MudSelectItem Value="@(StreamingMode.HttpLiveStreamingSegmenter)">HLS Segmenter</MudSelectItem>
+        }
     </MudSelect>
 </MudStack>
 <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
@@ -404,6 +420,7 @@ else
                         _model.PlayoutMode = channelViewModel.PlayoutMode;
                         _model.MirrorSourceChannelId = channelViewModel.MirrorSourceChannelId;
                         _model.PlayoutOffset = channelViewModel.PlayoutOffset;
+                        _model.StreamingEngine = channelViewModel.StreamingEngine;
                         _model.StreamingMode = channelViewModel.StreamingMode;
                         _model.StreamSelectorMode = channelViewModel.StreamSelectorMode;
                         _model.StreamSelector = channelViewModel.StreamSelector;
@@ -435,6 +452,7 @@ else
                 _model.Name = "New Channel";
                 _model.Group = "ErsatzTV";
                 _model.FFmpegProfileId = ffmpegSettings.DefaultFFmpegProfileId;
+                _model.StreamingEngine = StreamingEngine.Legacy;
                 _model.StreamingMode = StreamingMode.TransportStreamHybrid;
                 _model.IsEnabled = true;
                 _model.ShowInEpg = true;

ErsatzTV/Properties/launchSettings.json

@@ -7,7 +7,8 @@
         "ASPNETCORE_ENVIRONMENT": "Development",
         "DOTNET_ENVIRONMENT": "Development",
         "ETV_STREAMING_PORT": "8409",
-        "ETV_UI_PORT": "8410"
+        "ETV_UI_PORT": "8410",
+        "ETV_NEXT_FOLDER": "~/code/ErsatzTV/next/target/debug"
       }
     }
   }

ErsatzTV/ViewModels/ChannelEditViewModel.cs

@@ -31,6 +31,7 @@ public class ChannelEditViewModel
         set => PlayoutOffset = new TimeSpan(hours: value, minutes: 0, seconds: 0);
     }
 
+    public StreamingEngine StreamingEngine { get; set; }
     public StreamingMode StreamingMode { get; set; }
     public int? WatermarkId { get; set; }
     public int? FallbackFillerId { get; set; }
@@ -72,6 +73,7 @@ public class ChannelEditViewModel
             PlayoutMode,
             MirrorSourceChannelId,
             PlayoutOffset,
+            StreamingEngine,
             StreamingMode,
             WatermarkId,
             FallbackFillerId,
@@ -104,6 +106,7 @@ public class ChannelEditViewModel
             PlayoutMode,
             MirrorSourceChannelId,
             PlayoutOffset,
+            StreamingEngine,
             StreamingMode,
             WatermarkId,
             FallbackFillerId,