Add accurate bitrate reporting for ffmpeg jobs

MediaBrowser.Api/ApiEntryPoint.cs

@@ -192,13 +192,13 @@ namespace MediaBrowser.Api
 
                 _activeTranscodingJobs.Add(job);
 
-                ReportTranscodingProgress(job, state, null, null, null, null);
+                ReportTranscodingProgress(job, state, null, null, null, null, null);
 
                 return job;
             }
         }
 
-        public void ReportTranscodingProgress(TranscodingJob job, StreamState state, TimeSpan? transcodingPosition, float? framerate, double? percentComplete, long? bytesTranscoded)
+        public void ReportTranscodingProgress(TranscodingJob job, StreamState state, TimeSpan? transcodingPosition, float? framerate, double? percentComplete, long? bytesTranscoded, int? bitRate)
         {
             var ticks = transcodingPosition.HasValue ? transcodingPosition.Value.Ticks : (long?)null;
 
@@ -208,6 +208,7 @@ namespace MediaBrowser.Api
                 job.CompletionPercentage = percentComplete;
                 job.TranscodingPositionTicks = ticks;
                 job.BytesTranscoded = bytesTranscoded;
+                job.BitRate = bitRate;
             }
 
             var deviceId = state.Request.DeviceId;
@@ -219,7 +220,7 @@ namespace MediaBrowser.Api
 
                 _sessionManager.ReportTranscodingInfo(deviceId, new TranscodingInfo
                 {
-                    Bitrate = state.TotalOutputBitrate,
+                    Bitrate = bitRate ?? state.TotalOutputBitrate,
                     AudioCodec = audioCodec,
                     VideoCodec = videoCodec,
                     Container = state.OutputContainer,
@@ -694,6 +695,7 @@ namespace MediaBrowser.Api
 
         public long? BytesDownloaded { get; set; }
         public long? BytesTranscoded { get; set; }
+        public int? BitRate { get; set; }
 
         public long? TranscodingPositionTicks { get; set; }
         public long? DownloadPositionTicks { get; set; }

MediaBrowser.Api/Playback/BaseStreamingService.cs

@@ -1172,6 +1172,7 @@ namespace MediaBrowser.Api.Playback
             double? percent = null;
             TimeSpan? transcodingPosition = null;
             long? bytesTranscoded = null;
+            int? bitRate = null;
 
             var parts = line.Split(' ');
 
@@ -1235,11 +1236,32 @@ namespace MediaBrowser.Api.Playback
                         }
                     }
                 }
+                else if (part.StartsWith("bitrate=", StringComparison.OrdinalIgnoreCase))
+                {
+                    var rate = part.Split(new[] { '=' }, 2).Last();
+
+                    int? scale = null;
+                    if (rate.IndexOf("kbits/s", StringComparison.OrdinalIgnoreCase) != -1)
+                    {
+                        scale = 1024;
+                        rate = rate.Replace("kbits/s", string.Empty, StringComparison.OrdinalIgnoreCase);
+                    }
+
+                    if (scale.HasValue)
+                    {
+                        float val;
+
+                        if (float.TryParse(rate, NumberStyles.Any, UsCulture, out val))
+                        {
+                            bitRate = (int)Math.Ceiling(val * scale.Value);
+                        }
+                    }
+                }
             }
 
             if (framerate.HasValue || percent.HasValue)
             {
-                ApiEntryPoint.Instance.ReportTranscodingProgress(transcodingJob, state, transcodingPosition, framerate, percent, bytesTranscoded);
+                ApiEntryPoint.Instance.ReportTranscodingProgress(transcodingJob, state, transcodingPosition, framerate, percent, bytesTranscoded, bitRate);
             }
         }