don't use hardware encoding with folder rips

MediaBrowser.Api/Playback/BaseStreamingService.cs

@@ -286,19 +286,25 @@ namespace MediaBrowser.Api.Playback
 
         protected string GetH264Encoder(StreamState state)
         {
-            if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase) ||
-                string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "h264_qsv", StringComparison.OrdinalIgnoreCase))
+            // Only use alternative encoders for video files.
+            // When using concat with folder rips, if the mfx session fails to initialize, ffmpeg will be stuck retrying and will not exit gracefully
+            // Since transcoding of folder rips is expiremental anyway, it's not worth adding additional variables such as this.
+            if (state.VideoType == VideoType.VideoFile)
             {
-                return "h264_qsv";
-            }
+                if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase) ||
+                    string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "h264_qsv", StringComparison.OrdinalIgnoreCase))
+                {
+                    return "h264_qsv";
+                }
 
-            if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "nvenc", StringComparison.OrdinalIgnoreCase))
-            {
-                return "h264_nvenc";
-            }
-            if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "h264_omx", StringComparison.OrdinalIgnoreCase))
-            {
-                return "h264_omx";
+                if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "nvenc", StringComparison.OrdinalIgnoreCase))
+                {
+                    return "h264_nvenc";
+                }
+                if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "h264_omx", StringComparison.OrdinalIgnoreCase))
+                {
+                    return "h264_omx";
+                }
             }
 
             return "libx264";
@@ -843,6 +849,14 @@ namespace MediaBrowser.Api.Playback
                 return null;
             }
 
+            // Only use alternative encoders for video files.
+            // When using concat with folder rips, if the mfx session fails to initialize, ffmpeg will be stuck retrying and will not exit gracefully
+            // Since transcoding of folder rips is expiremental anyway, it's not worth adding additional variables such as this.
+            if (state.VideoType != VideoType.VideoFile)
+            {
+                return null;
+            }
+
             if (state.VideoStream != null && !string.IsNullOrWhiteSpace(state.VideoStream.Codec))
             {
                 if (string.Equals(ApiEntryPoint.Instance.GetEncodingOptions().HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase))

MediaBrowser.MediaEncoding/Encoder/BaseEncoder.cs

@@ -366,6 +366,14 @@ namespace MediaBrowser.MediaEncoding.Encoder
                 return null;
             }
 
+            // Only use alternative encoders for video files.
+            // When using concat with folder rips, if the mfx session fails to initialize, ffmpeg will be stuck retrying and will not exit gracefully
+            // Since transcoding of folder rips is expiremental anyway, it's not worth adding additional variables such as this.
+            if (state.VideoType != VideoType.VideoFile)
+            {
+                return null;
+            }
+
             if (state.VideoStream != null && !string.IsNullOrWhiteSpace(state.VideoStream.Codec))
             {
                 if (string.Equals(GetEncodingOptions().HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase))