fix mp4 moov

src/main/java/net/pms/encoders/FFMpegVideo.java

@@ -509,7 +509,17 @@ protected synchronized List<String> getVideoTranscodeOptions(StoreItem item, Med
 					transcodeOptions.add(FormatConfiguration.MP4);
 
 					transcodeOptions.add("-movflags");
-					transcodeOptions.add("frag_keyframe+faststart");
+					if (encodingFormat.isTranscodeToH265()) {
+						//todo: check if it is the rigth settings
+						//I splitted it as it break moov on H264 output.
+						//I don't know about h265 requirements, but faststart
+						// need seekable output (what pipe streamed is not).
+						// and frag_keyframe without empty_moov miss the first frame.
+						//I think it should be frag_keyframe+empty_moov.
+						transcodeOptions.add("frag_keyframe+faststart");
+					} else {
+						transcodeOptions.add("frag_keyframe+empty_moov");
+					}
 				} else {
 					transcodeOptions.add("vob");
 				}