1 files changed, 183 insertions, 0 deletions
diff --git a/MediaBrowser.Api/Playback/Progressive/VideoService.cs b/MediaBrowser.Api/Playback/Progressive/VideoService.cs
new file mode 100644
index 000000000..b43b4bfbc
--- /dev/null
+++ b/MediaBrowser.Api/Playback/Progressive/VideoService.cs
@@ -0,0 +1,183 @@
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Model.Logging;
+using System;
+
+namespace MediaBrowser.Api.Playback.Progressive
+{
+    /// <summary>
+    /// Class VideoService
+    /// </summary>
+    public class VideoService : BaseProgressiveStreamingService
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BaseProgressiveStreamingService" /> class.
+        /// </summary>
+        /// <param name="appPaths">The app paths.</param>
+        public VideoService(IServerApplicationPaths appPaths)
+            : base(appPaths)
+        {
+        }
+
+        /// <summary>
+        /// Gets the command line arguments.
+        /// </summary>
+        /// <param name="outputPath">The output path.</param>
+        /// <param name="state">The state.</param>
+        /// <returns>System.String.</returns>
+        protected override string GetCommandLineArguments(string outputPath, StreamState state)
+        {
+            var video = (Video)state.Item;
+
+            var probeSize = ServerKernel.FFMpegManager.GetProbeSizeArgument(video.VideoType, video.IsoType);
+
+            // Get the output codec name
+            var videoCodec = GetVideoCodec(state.Request);
+
+            var graphicalSubtitleParam = string.Empty;
+
+            if (state.SubtitleStream != null)
+            {
+                // This is for internal graphical subs
+                if (!state.SubtitleStream.IsExternal && (state.SubtitleStream.Codec.IndexOf("pgs", StringComparison.OrdinalIgnoreCase) != -1 || state.SubtitleStream.Codec.IndexOf("dvd", StringComparison.OrdinalIgnoreCase) != -1))
+                {
+                    graphicalSubtitleParam = GetInternalGraphicalSubtitleParam(state, videoCodec);
+                }
+            }
+
+            return string.Format("{0} {1} -i {2}{3} -threads 0 {4} {5}{6} {7} \"{8}\"",
+                probeSize,
+                GetFastSeekCommandLineParameter(state.Request),
+                GetInputArgument(video, state.IsoMount),
+                GetSlowSeekCommandLineParameter(state.Request),
+                GetMapArgs(state),
+                GetVideoArguments(state, videoCodec),
+                graphicalSubtitleParam,
+                GetAudioArguments(state),
+                outputPath
+                ).Trim();
+        }
+
+        /// <summary>
+        /// Gets video arguments to pass to ffmpeg
+        /// </summary>
+        /// <param name="state">The state.</param>
+        /// <param name="videoCodec">The video codec.</param>
+        /// <returns>System.String.</returns>
+        private string GetVideoArguments(StreamState state, string videoCodec)
+        {
+            var args = "-vcodec " + videoCodec;
+
+            var request = state.Request;
+
+            // If we're encoding video, add additional params
+            if (!videoCodec.Equals("copy", StringComparison.OrdinalIgnoreCase))
+            {
+                // Add resolution params, if specified
+                if (request.Width.HasValue || request.Height.HasValue || request.MaxHeight.HasValue || request.MaxWidth.HasValue)
+                {
+                    args += GetOutputSizeParam(state, videoCodec);
+                }
+
+                if (request.Framerate.HasValue)
+                {
+                    args += string.Format(" -r {0}", request.Framerate.Value);
+                }
+
+                // Add the audio bitrate
+                var qualityParam = GetVideoQualityParam(request, videoCodec);
+
+                if (!string.IsNullOrEmpty(qualityParam))
+                {
+                    args += " " + qualityParam;
+                }
+            }
+            else if (IsH264(state.VideoStream))
+            {
+                args += " -bsf h264_mp4toannexb";
+            }
+
+            return args;
+        }
+
+        /// <summary>
+        /// Gets audio arguments to pass to ffmpeg
+        /// </summary>
+        /// <param name="state">The state.</param>
+        /// <returns>System.String.</returns>
+        private string GetAudioArguments(StreamState state)
+        {
+            // If the video doesn't have an audio stream, return a default.
+            if (state.AudioStream == null)
+            {
+                return string.Empty;
+            }
+
+            var request = state.Request;
+
+            // Get the output codec name
+            var codec = GetAudioCodec(request);
+
+            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(request, state.AudioStream);
+
+                if (channels.HasValue)
+                {
+                    args += " -ac " + channels.Value;
+                }
+
+                if (request.AudioSampleRate.HasValue)
+                {
+                    args += " -ar " + request.AudioSampleRate.Value;
+                }
+
+                if (request.AudioBitRate.HasValue)
+                {
+                    args += " -ab " + request.AudioBitRate.Value;
+                }
+            }
+
+            return args;
+        }
+
+        /// <summary>
+        /// Gets the video bitrate to specify on the command line
+        /// </summary>
+        /// <param name="request">The request.</param>
+        /// <param name="videoCodec">The video codec.</param>
+        /// <returns>System.String.</returns>
+        private string GetVideoQualityParam(StreamRequest request, 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 (request.VideoBitRate.HasValue)
+            {
+                args += " -b:v " + request.VideoBitRate;
+            }
+
+            return args.Trim();
+        }
+    }
+}