static const AVClass av_format_context_class = {
.class_name = "AVFormatContext",
.item_name = format_to_name,
static const AVClass av_format_context_class = {
.class_name = "AVFormatContext",
.item_name = format_to_name,
.version = LIBAVUTIL_VERSION_INT,
.child_next = format_child_next,
.child_class_next = format_child_class_next,
.version = LIBAVUTIL_VERSION_INT,
.child_next = format_child_next,
.child_class_next = format_child_class_next,