sf_databuffer/policies/image.policies

{
    "policies": [
        {
            "pattern": ":FPICTURE$",
            "data_reduction": {
                "default": [
	                {
	                    "ttl": "PT1H",
	                    "modulo": 1
	                },
	                {
	                    "ttl": "P1D",
	                    "modulo": 100
	                }
                ]
            }
        }
    ]
}