shared_ptr<ImageContent> content (new ImageContent (film, "test/data/3d_test"));
content->set_video_frame_type (VIDEO_FRAME_TYPE_3D_LEFT_RIGHT);
shared_ptr<ImageContent> content (new ImageContent (film, "test/data/3d_test"));
content->set_video_frame_type (VIDEO_FRAME_TYPE_3D_LEFT_RIGHT);