more work on channel downloading

MediaBrowser.Controller/Channels/ChannelVideoItem.cs

@@ -1,6 +1,7 @@
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Model.Channels;
 using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Dto;
 using MediaBrowser.Model.Entities;
 using System.Collections.Generic;
 using System.Globalization;
@@ -10,6 +11,8 @@ namespace MediaBrowser.Controller.Channels
 {
     public class ChannelVideoItem : Video, IChannelMediaItem
     {
+        public static IChannelManager ChannelManager { get; set; }
+
         public string ExternalId { get; set; }
 
         public string ChannelId { get; set; }
@@ -77,5 +80,14 @@ namespace MediaBrowser.Controller.Channels
                 return base.LocationType;
             }
         }
+
+        public override IEnumerable<MediaSourceInfo> GetMediaSources(bool enablePathSubstitution)
+        {
+            var list = base.GetMediaSources(enablePathSubstitution).ToList();
+
+            list.InsertRange(0, ChannelManager.GetCachedChannelItemMediaSources(Id.ToString("N")));
+
+            return list;
+        }
     }
 }

MediaBrowser.Controller/Channels/IChannelManager.cs

@@ -66,12 +66,19 @@ namespace MediaBrowser.Controller.Channels
         /// <returns>Task{QueryResult{BaseItemDto}}.</returns>
         Task<QueryResult<BaseItemDto>> GetChannelItems(ChannelItemQuery query, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Gets the cached channel item media sources.
+        /// </summary>
+        /// <param name="id">The identifier.</param>
+        /// <returns>IEnumerable{MediaSourceInfo}.</returns>
+        IEnumerable<MediaSourceInfo> GetCachedChannelItemMediaSources(string id);
+
         /// <summary>
         /// Gets the channel item media sources.
         /// </summary>
         /// <param name="id">The identifier.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
-        /// <returns>Task{IEnumerable{ChannelMediaInfo}}.</returns>
+        /// <returns>Task{IEnumerable{MediaSourceInfo}}.</returns>
         Task<IEnumerable<MediaSourceInfo>> GetChannelItemMediaSources(string id, CancellationToken cancellationToken);
     }
 }