Use monotonic system time for rendering timestamps. This is required now in Android 6.0 since these timestamps are propagated to the codec.

app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java

@@ -83,6 +83,10 @@ public class MediaCodecHelper {
 		
 		return false;
 	}
+
+	public static long getMonotonicMillis() {
+		return System.nanoTime() / 1000000L;
+	}
 	
 	@TargetApi(Build.VERSION_CODES.KITKAT)
 	public static boolean decoderSupportsAdaptivePlayback(String decoderName, MediaCodecInfo decoderInfo) {