.category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
};
-AVInputFormat ff_v4l2_demuxer = {
+const AVInputFormat ff_v4l2_demuxer = {
.name = "video4linux2,v4l2",
.long_name = NULL_IF_CONFIG_SMALL("Video4Linux2 device grab"),
.priv_data_size = sizeof(struct video_data),