hw: add draft rockchip-mpp hw video encoding

cmd/kvm/main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"rkkvm/config"
 	"rkkvm/external/ffmpeg"
+	"rkkvm/external/mpp"
 	"rkkvm/external/process"
 	"rkkvm/http/route"
 	"rkkvm/http/rtc"
@@ -31,6 +32,12 @@ func main() {
 		log.Println("Failed to parse log level, use default level: info")
 	}
 
+	// FIXME: hardcoded device
+	if err := mpp.NewTest("/dev/video0"); err != nil {
+		log.Fatalf("Failed to open device: %v", err)
+	}
+	defer mpp.GetInstance().Close()
+
 	webrtc, err := rtc.InitListener(cfg.WebRtc.Host, cfg.WebRtc.VideoPort, cfg.WebRtc.AudioPort)
 	if err != nil {
 		log.Fatal(err)