Rockchip updated rockchip-linux/mpp but NOT updated to compatible rockchip-linux/kernel and you receive errors like "rk_vcodec: vpu_service_ioctl:1847: error: unknown vpu service ioctl cmd 40086c01"...
The 40086c01 error print will happen just once for ioctrl detection in mpp.
Please refer to mpp_device.c . There is two kernel ioctrl interface and mpp need to detect the correct one.
Also regarding the absolute latest mpp that enables post-process support seem to have a 100% cpu when opening a video and hevc not working issue, I went with the commit before post-process was enabled, [h264d]: remove build warnning · rockchip-linux/mpp@3f57e7b · GitHub for devel image.
Hi mo123,
The cpu usage issue on latest mpp is fixed by this patch:
[mpp_dec]: Fix dead loop on output frame block
Thanks for reporting
