1 files changed, 185 insertions, 0 deletions
diff --git a/MediaBrowser.Api/Streaming/VideoHandler.cs b/MediaBrowser.Api/Streaming/VideoHandler.cs
new file mode 100644
index 000000000..4a05d2547
--- /dev/null
+++ b/MediaBrowser.Api/Streaming/VideoHandler.cs
@@ -0,0 +1,185 @@
+using System.IO;
+using System.Threading;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Common.Net.Handlers;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Resolvers;
+using System;
+using System.ComponentModel.Composition;
+using System.Linq;
+using System.Net;
+using MediaBrowser.Model.Entities;
+
+namespace MediaBrowser.Api.Streaming
+{
+    /// <summary>
+    /// Providers a progressive streaming video api
+    /// </summary>
+    [Export(typeof(IHttpServerHandler))]
+    class VideoHandler : BaseProgressiveStreamingHandler<Video>
+    {
+        /// <summary>
+        /// Handleses the request.
+        /// </summary>
+        /// <param name="request">The request.</param>
+        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
+        public override bool HandlesRequest(HttpListenerRequest request)
+        {
+            return EntityResolutionHelper.VideoFileExtensions.Any(a => ApiService.IsApiUrlMatch("video" + a, request));
+        }
+
+        /// <summary>
+        /// Creates arguments to pass to ffmpeg
+        /// </summary>
+        /// <param name="outputPath">The output path.</param>
+        /// <param name="isoMount">The iso mount.</param>
+        /// <returns>System.String.</returns>
+        protected override string GetCommandLineArguments(string outputPath, IIsoMount isoMount)
+        {
+            var probeSize = Kernel.FFMpegManager.GetProbeSizeArgument(LibraryItem.VideoType, LibraryItem.IsoType);
+
+            // Get the output codec name
+            var videoCodec = GetVideoCodec();
+
+            var graphicalSubtitleParam = string.Empty;
+
+            if (SubtitleStream != null)
+            {
+                // This is for internal graphical subs
+                if (!SubtitleStream.IsExternal && (SubtitleStream.Codec.IndexOf("pgs", StringComparison.OrdinalIgnoreCase) != -1 || SubtitleStream.Codec.IndexOf("dvd", StringComparison.OrdinalIgnoreCase) != -1))
+                {
+                    graphicalSubtitleParam = GetInternalGraphicalSubtitleParam(SubtitleStream, videoCodec);
+                }
+            }
+
+            return string.Format("{0} {1} -i {2}{3} -threads 0 {4} {5}{6} {7} \"{8}\"",
+                probeSize,
+                FastSeekCommandLineParameter,
+                GetInputArgument(isoMount),
+                SlowSeekCommandLineParameter,
+                MapArgs,
+                GetVideoArguments(videoCodec),
+                graphicalSubtitleParam,
+                GetAudioArguments(),
+                outputPath
+                ).Trim();
+        }
+
+        /// <summary>
+        /// Gets video arguments to pass to ffmpeg
+        /// </summary>
+        /// <returns>System.String.</returns>
+        private string GetVideoArguments(string videoCodec)
+        {
+            var args = "-vcodec " + videoCodec;
+
+            // If we're encoding video, add additional params
+            if (!videoCodec.Equals("copy", StringComparison.OrdinalIgnoreCase))
+            {
+                // Add resolution params, if specified
+                if (Width.HasValue || Height.HasValue || MaxHeight.HasValue || MaxWidth.HasValue)
+                {
+                    args += GetOutputSizeParam(videoCodec);
+                }
+
+                if (FrameRate.HasValue)
+                {
+                    args += string.Format(" -r {0}", FrameRate.Value);
+                }
+
+                // Add the audio bitrate
+                var qualityParam = GetVideoQualityParam(videoCodec);
+
+                if (!string.IsNullOrEmpty(qualityParam))
+                {
+                    args += " " + qualityParam;
+                }
+            }
+            else if (IsH264(VideoStream))
+            {
+                args += " -bsf h264_mp4toannexb";
+            }
+
+            return args;
+        }
+
+        /// <summary>
+        /// Gets audio arguments to pass to ffmpeg
+        /// </summary>
+        /// <returns>System.String.</returns>
+        private string GetAudioArguments()
+        {
+            // If the video doesn't have an audio stream, return a default.
+            if (AudioStream == null)
+            {
+                return string.Empty;
+            }
+
+            // Get the output codec name
+            var codec = GetAudioCodec();
+
+            var args = "-acodec " + codec;
+
+            // If we're encoding audio, add additional params
+            if (!codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
+            {
+                // Add the number of audio channels
+                var channels = GetNumAudioChannelsParam();
+
+                if (channels.HasValue)
+                {
+                    args += " -ac " + channels.Value;
+                }
+
+                // Add the audio sample rate
+                var sampleRate = GetSampleRateParam();
+
+                if (sampleRate.HasValue)
+                {
+                    args += " -ar " + sampleRate.Value;
+                }
+
+                if (AudioBitRate.HasValue)
+                {
+                    args += " -ab " + AudioBitRate.Value;
+                }
+            }
+
+            return args;
+        }
+
+        /// <summary>
+        /// Gets the video bitrate to specify on the command line
+        /// </summary>
+        /// <param name="videoCodec">The video codec.</param>
+        /// <returns>System.String.</returns>
+        private string GetVideoQualityParam(string videoCodec)
+        {
+            var args = string.Empty;
+
+            // webm
+            if (videoCodec.Equals("libvpx", StringComparison.OrdinalIgnoreCase))
+            {
+                args = "-g 120 -cpu-used 1 -lag-in-frames 16 -deadline realtime -slices 4 -vprofile 0";
+            }
+
+            // asf/wmv
+            else if (videoCodec.Equals("wmv2", StringComparison.OrdinalIgnoreCase))
+            {
+                args = "-g 100 -qmax 15";
+            }
+
+            else if (videoCodec.Equals("libx264", StringComparison.OrdinalIgnoreCase))
+            {
+                args = "-preset superfast";
+            }
+
+            if (VideoBitRate.HasValue)
+            {
+                args += " -b:v " + VideoBitRate;
+            }
+
+            return args.Trim();
+        }
+    }
+}