Fix adding rotation when not needed.

src/zm_videostore.cpp

@@ -192,7 +192,7 @@ bool VideoStore::open() {
       video_out_stream->avg_frame_rate = video_in_stream->avg_frame_rate;
       // Only set orientation if doing passthrough, otherwise the frame image will be rotated
       Monitor::Orientation orientation = monitor->getOrientation();
-      if (orientation) {
+      if (orientation > 1) { // 1 is ROTATE_0
 #if LIBAVCODEC_VERSION_CHECK(59, 37, 100, 37, 100)
         int32_t* displaymatrix = static_cast<int32_t*>(av_malloc(sizeof(int32_t)*9));
         Debug(3, "Have orientation %d", orientation);