linkpi_firmware_history/rootfs/link/config/videoBuffer.json

{
	"used":"default",
	"default":{
		"sys":[
			{"size":3133440,"cnt":30},
			{"size":1382400,"cnt":20}
		]
	},
	"4K":{
		"sys":[
			{"size":12441600,"cnt":5},
			{"size":3133440,"cnt":20},
			{"size":1382400,"cnt":18}
		]
	}
}