Hi Sebastian, Detlev is working on rkvdec2 and gstreamer can't deal with two h264 stateless decoders. So it's better to disable h264 decoding feature of this vpu121, just like what we have done for rk3399. If your multicore patch can handle the jpeg enc node at fdb50000 with other VEPU121 nodes properly, we can just use compatible string "rockchip,rk3399-vpu" instead of "rockchip,rk3568-vpu". Best regards, Jianfeng