Re-worked async actions in BaseHandler, and changed AudioBitRate to AudioBitRates.

MediaBrowser.Api/HttpHandlers/VideoHandler.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Logging;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Common.Net.Handlers;
+using MediaBrowser.Controller;
+using MediaBrowser.Model.Entities;
+
+namespace MediaBrowser.Api.HttpHandlers
+{
+    class VideoHandler : BaseMediaHandler<Video>
+    {
+        public IEnumerable<string> VideoFormats
+        {
+            get
+            {
+                return QueryString["videoformats"].Split(',');
+            }
+        }
+
+        /// <summary>
+        /// Gets the format we'll be converting to
+        /// </summary>
+        protected override string GetOutputFormat()
+        {
+            return VideoFormats.First();
+        }
+
+        protected override bool RequiresConversion()
+        {
+            // If it's not in a format the consumer accepts, return true
+            if (!VideoFormats.Any(f => LibraryItem.Path.EndsWith(f, StringComparison.OrdinalIgnoreCase)))
+            {
+                return true;
+            }
+            
+            AudioStream audio = LibraryItem.AudioStreams.FirstOrDefault();
+
+            if (audio != null)
+            {
+                // If the number of channels is greater than our desired channels, we need to transcode
+                if (AudioChannels.HasValue && AudioChannels.Value < audio.Channels)
+                {
+                    return true;
+                }
+            }
+
+            // Yay
+            return false;
+        }
+
+        protected override Task WriteResponseToOutputStream(Stream stream)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}