improve ffmpeg killing

MediaBrowser.Api/ApiEntryPoint.cs

@@ -284,16 +284,19 @@ namespace MediaBrowser.Api
         {
             job.ActiveRequestCount++;
 
-            job.DisposeKillTimer();
+            if (string.IsNullOrWhiteSpace(job.PlaySessionId) || job.Type == TranscodingJobType.Progressive)
+            {
+                job.DisposeKillTimer();
+            }
         }
 
         public void OnTranscodeEndRequest(TranscodingJob job)
         {
             job.ActiveRequestCount--;
-
-            if (job.ActiveRequestCount == 0)
+            Logger.Debug("OnTranscodeEndRequest job.ActiveRequestCount={0}", job.ActiveRequestCount);
+            if (job.ActiveRequestCount <= 0)
             {
-                PingTimer(job, true);
+                PingTimer(job, false);
             }
         }
         internal void PingTranscodingJob(string deviceId, string playSessionId)
@@ -323,11 +326,11 @@ namespace MediaBrowser.Api
 
             foreach (var job in jobs)
             {
-                PingTimer(job, false);
+                PingTimer(job, true);
             }
         }
 
-        private void PingTimer(TranscodingJob job, bool startTimerIfNeeded)
+        private void PingTimer(TranscodingJob job, bool isProgressCheckIn)
         {
             // TODO: Lower this hls timeout
             var timerDuration = job.Type == TranscodingJobType.Progressive ?
@@ -335,20 +338,23 @@ namespace MediaBrowser.Api
                 1800000;
 
             // We can really reduce the timeout for apps that are using the newer api
-            if (!string.IsNullOrWhiteSpace(job.PlaySessionId) && job.Type == TranscodingJobType.Hls)
+            if (!string.IsNullOrWhiteSpace(job.PlaySessionId) && job.Type != TranscodingJobType.Progressive)
             {
-                timerDuration = 40000;
+                timerDuration = 35000;
             }
 
             if (job.KillTimer == null)
             {
-                if (startTimerIfNeeded)
+                // Don't start the timer for playback checkins with progressive streaming
+                if (job.Type != TranscodingJobType.Progressive || !isProgressCheckIn)
                 {
+                    Logger.Debug("Starting kill timer at {0}ms", timerDuration);
                     job.KillTimer = new Timer(OnTranscodeKillTimerStopped, job, timerDuration, Timeout.Infinite);
                 }
             }
             else
             {
+                Logger.Debug("Changing kill timer to {0}ms", timerDuration);
                 job.KillTimer.Change(timerDuration, Timeout.Infinite);
             }
         }
@@ -439,28 +445,19 @@ namespace MediaBrowser.Api
 
             lock (job.ProcessLock)
             {
-                var process = job.Process;
-
-                var hasExited = true;
-
-                try
-                {
-                    hasExited = process.HasExited;
-                }
-                catch (Exception ex)
+                if (job.TranscodingThrottler != null)
                 {
-                    Logger.ErrorException("Error determining if ffmpeg process has exited for {0}", ex, job.Path);
+                    job.TranscodingThrottler.Stop();
                 }
 
+                var process = job.Process;
+
+                var hasExited = job.HasExited;
+
                 if (!hasExited)
                 {
                     try
                     {
-                        if (job.TranscodingThrottler != null)
-                        {
-                            job.TranscodingThrottler.Stop();
-                        }
-
                         Logger.Info("Killing ffmpeg process for {0}", job.Path);
 
                         //process.Kill();

MediaBrowser.Api/Playback/BaseStreamingService.cs

@@ -1706,7 +1706,7 @@ namespace MediaBrowser.Api.Playback
                 state.OutputAudioCodec = "copy";
             }
 
-            if (string.Equals(state.OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase))
+            if (string.Equals(state.OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase) && TranscodingJobType == TranscodingJobType.Hls)
             {
                 var segmentLength = GetSegmentLength(state);
                 if (segmentLength.HasValue)

MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs

@@ -144,7 +144,6 @@ namespace MediaBrowser.Api.Playback.Hls
                             request.StartTimeTicks = GetSeekPositionTicks(state, requestedIndex);
 
                             job = await StartFfMpeg(state, playlistPath, cancellationTokenSource).ConfigureAwait(false);
-                            ApiEntryPoint.Instance.OnTranscodeBeginRequest(job);
                         }
                         catch
                         {
@@ -154,6 +153,14 @@ namespace MediaBrowser.Api.Playback.Hls
 
                         await WaitForMinimumSegmentCount(playlistPath, 1, cancellationTokenSource.Token).ConfigureAwait(false);
                     }
+                    else
+                    {
+                        job = ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
+                        if (job.TranscodingThrottler != null)
+                        {
+                            job.TranscodingThrottler.UnpauseTranscoding();
+                        }
+                    }
                 }
             }
             finally

MediaBrowser.Api/Playback/TranscodingThrottler.cs

@@ -70,7 +70,7 @@ namespace MediaBrowser.Api.Playback
             }
         }
 
-        private void UnpauseTranscoding()
+        public void UnpauseTranscoding()
         {
             if (_isPaused)
             {

MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

@@ -244,8 +244,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
                             {
                                 try
                                 {
-                                    stream.KeyFrames = await GetKeyFrames(inputPath, stream.Index, cancellationToken)
-                                                .ConfigureAwait(false);
+                                    //stream.KeyFrames = await GetKeyFrames(inputPath, stream.Index, cancellationToken)
+                                    //            .ConfigureAwait(false);
                                 }
                                 catch (OperationCanceledException)
                                 {

MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs

@@ -130,7 +130,7 @@ namespace MediaBrowser.Providers.MediaInfo
             return ItemUpdateType.MetadataImport;
         }
 
-        private const string SchemaVersion = "3";
+        private const string SchemaVersion = "4";
 
         private async Task<Model.MediaInfo.MediaInfo> GetMediaInfo(Video item,
             IIsoMount isoMount,
@@ -145,7 +145,7 @@ namespace MediaBrowser.Providers.MediaInfo
 
             try
             {
-                //return _json.DeserializeFromFile<Model.MediaInfo.MediaInfo>(cachePath);
+                return _json.DeserializeFromFile<Model.MediaInfo.MediaInfo>(cachePath);
             }
             catch (FileNotFoundException)
             {