Initial check-in of VideoInfoProvider, although it's currently disabled.

MediaBrowser.Controller/Providers/VideoInfoProvider.cs

@@ -0,0 +1,89 @@
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using MediaBrowser.Controller.Events;
+using MediaBrowser.Controller.FFMpeg;
+using MediaBrowser.Model.Entities;
+
+namespace MediaBrowser.Controller.Providers
+{
+    //[Export(typeof(BaseMetadataProvider))]
+    public class VideoInfoProvider : BaseMetadataProvider
+    {
+        public override bool Supports(BaseEntity item)
+        {
+            return item is Video;
+        }
+
+        public override MetadataProviderPriority Priority
+        {
+            // Give this second priority
+            // Give metadata xml providers a chance to fill in data first
+            // Then we can skip this step whenever possible
+            get { return MetadataProviderPriority.Second; }
+        }
+
+        public override async Task Fetch(BaseEntity item, ItemResolveEventArgs args)
+        {
+            Video video = item as Video;
+
+            if (video.VideoType != VideoType.VideoFile)
+            {
+                // Not supported yet
+                return;
+            }
+
+            if (CanSkip(video))
+            {
+                return;
+            }
+
+            string outputDirectory = Path.Combine(Kernel.Instance.ApplicationPaths.FFProbeVideoCacheDirectory, item.Id.ToString().Substring(0, 1));
+
+            string outputPath = Path.Combine(outputDirectory, item.Id + "-" + item.DateModified.Ticks + ".js");
+
+            FFProbeResult data = await FFProbe.Run(video, outputPath);
+        }
+
+        /// <summary>
+        /// Determines if there's already enough info in the Video object to allow us to skip running ffprobe
+        /// </summary>
+        private bool CanSkip(Video video)
+        {
+            if (video.AudioStreams == null || !video.AudioStreams.Any())
+            {
+                return false;
+            }
+
+            if (string.IsNullOrEmpty(video.Codec))
+            {
+                return false;
+            }
+
+            if (string.IsNullOrEmpty(video.ScanType))
+            {
+                return false;
+            }
+
+            if (string.IsNullOrEmpty(video.FrameRate))
+            {
+                return false;
+            }
+
+            if (video.Height == 0 || video.Width == 0 || video.BitRate == 0)
+            {
+                return false;
+            }
+            
+            return true;
+        }
+
+        public override void Init()
+        {
+            base.Init();
+
+            AudioInfoProvider.EnsureCacheSubFolders(Kernel.Instance.ApplicationPaths.FFProbeVideoCacheDirectory);
+        }
+    }
+}