pub unsafe fn get_context(
_src_w: c_int,
_src_h: c_int,
_src_fmt: AVPixelFormat,
_dst_w: c_int,
_dst_h: c_int,
_dst_fmt: AVPixelFormat,
_flags: c_int,
) -> Result<*mut SwsContext, c_int>pub unsafe fn get_context(
_src_w: c_int,
_src_h: c_int,
_src_fmt: AVPixelFormat,
_dst_w: c_int,
_dst_h: c_int,
_dst_fmt: AVPixelFormat,
_flags: c_int,
) -> Result<*mut SwsContext, c_int>