This is not done yet. The rockchip VA-API driver[1] still need a third part library to pre-parse the nalu data. Maybe after the third part library free version[2] had done, it would be clear that we else filed we may need. Those structures comes from VA-API SPCE. But still not enough to driver a stateless video processor. For the Rockchip VPU, it won't process some part of data, like pic_order_cnt. Then you could configure a length of that part in register in order to let the video processor skip it. You may look at extra fields in struct v4l2_mpeg_video_h264_picture_param. Also there is some problem with the mechiansm of VA-API. A VA-API Surface looks like a wrapper of the buffer in output side(CAPTURE in V4L2), but for the V4L2, which buffer is dequeue from the CAPTURE is unknown. So it is a little hard to link the surface to the vpu driver internal buffer. The CREATE_BUFS ioctl may solve the allocation problem but not the dequeue. But as most stateless video processor could only process one frame in one time, I don't know the reference frame is need to keep for future parse(not by video processor but by the upper layer software), allowing only a buffer may solve this problem Some patches also reqired to make the VA-API client(like Gstreamer) to support those extra data need by the video processor. It would be done in a short time. Need someone is very familiar with the codec standard. Currently, I am doing JPEG encoder for RK3288 now, I won't be avaiable in short time and I am lack of the knowledge of codec standard. But I am scheduling the plan of the new driver for both kernel[3] and VA-API, I could do it on my free time. [1] https://github.com/rockchip-linux/rockchip-va-driver v4l2-libvpu [2] https://github.com/rockchip-linux/rockchip-va-driver rk_v4l2 [3] https://github.com/hizukiayaka/linux-kernel rk3288-media Randy Li (2): [media] v4l2-ctrls: add H.264 decoder settings controls v4l2-ctrls: add generic H.264 decoder codec settings structure drivers/media/v4l2-core/v4l2-ctrls.c | 2 + include/uapi/linux/v4l2-controls.h | 2 + include/uapi/linux/videodev2.h | 103 +++++++++++++++++++++++++++++++++++ 3 files changed, 107 insertions(+) -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
