#include <libcxml/cxml.h>
DCPOMATIC_DISABLE_WARNINGS
#include <libxml++/libxml++.h>
#include <libcxml/cxml.h>
DCPOMATIC_DISABLE_WARNINGS
#include <libxml++/libxml++.h>
AVPixelFormat pixel_format,
optional<int> forced_reduction
)
AVPixelFormat pixel_format,
optional<int> forced_reduction
)