# 4l2-ctl --list-formats-ext -d /dev/video4
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'NV12' (Y/UV 4:2:0)

# v4l2-ctl --all -d /dev/video4
Driver Info:
        Driver name      : rkvdec
        Card type        : rkvdec
        Bus info         : platform:rkvdec
        Driver version   : 6.2.2
        Capabilities     : 0x84204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps      : 0x04204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format
Media Driver Info:
        Driver name      : rkvdec
        Model            : rkvdec
        Serial           : 
        Bus info         : platform:rkvdec
        Media version    : 6.2.2
        Hardware revision: 0x00000000 (0)
        Driver version   : 6.2.2
Interface Info:
        ID               : 0x0300000c
        Type             : V4L Video
Entity Info:
        ID               : 0x00000001 (1)
        Name             : rkvdec-source
        Function         : V4L2 I/O
        Pad 0x01000002   : 0: Source
          Link 0x02000008: to remote pad 0x1000004 of entity 'rkvdec-proc' (Video Decoder): Data, Enabled, Immutable
Priority: 2
Format Video Capture Multiplanar:
        Width/Height      : 64/64
        Pixel Format      : 'NV12' (Y/UV 4:2:0)
        Field             : None
        Number of planes  : 1
        Flags             : 
        Colorspace        : Rec. 709
        Transfer Function : Default
        YCbCr/HSV Encoding: Default
        Quantization      : Default
        Plane 0           :
           Bytes per Line : 64
           Size Image     : 8192
Format Video Output Multiplanar:
        Width/Height      : 64/64
        Pixel Format      : 'S265' (HEVC Parsed Slice Data)
        Field             : None
        Number of planes  : 1
        Flags             : 
        Colorspace        : Rec. 709
        Transfer Function : Default
        YCbCr/HSV Encoding: Default
        Quantization      : Default
        Plane 0           :
           Bytes per Line : 0
           Size Image     : 8192

Codec Controls

                     h264_level 0x00990a67 (menu)   : min=0 max=15 default=0 value=0 (1)
                                0: 1
                                1: 1b
                                2: 1.1
                                3: 1.2
                                4: 1.3
                                5: 2
                                6: 2.1
                                7: 2.2
                                8: 3
                                9: 3.1
                                10: 3.2
                                11: 4
                                12: 4.1
                                13: 4.2
                                14: 5
                                15: 5.1
                   h264_profile 0x00990a6b (menu)   : min=0 max=4 default=2 value=2 (Main)
                                0: Baseline
                                1: Constrained Baseline
                                2: Main
                                4: High
                    vp9_profile 0x00990b00 (menu)   : min=0 max=0 default=0 value=0 (0)
                                0: 0
                   hevc_profile 0x00990b67 (menu)   : min=0 max=2 default=0 value=0 (Main)
                                0: Main
                                1: Main Still Picture
                                2: Main 10
                     hevc_level 0x00990b68 (menu)   : min=0 max=8 default=0 value=0 (1)
                                0: 1
                                1: 2
                                2: 2.1
                                3: 3
                                4: 3.1
                                5: 4
                                6: 4.1
                                7: 5
                                8: 5.1

Stateless Codec Controls

               h264_decode_mode 0x00a40900 (menu)   : min=1 max=1 default=1 value=1 (Frame-Based)
                                1: Frame-Based
                h264_start_code 0x00a40901 (menu)   : min=1 max=1 default=1 value=1 (Annex B Start Code)
                                1: Annex B Start Code
    h264_sequence_parameter_set 0x00a40902 (h264-sps): value=unsupported payload type flags=has-payload
     h264_picture_parameter_set 0x00a40903 (h264-pps): value=unsupported payload type flags=has-payload
            h264_scaling_matrix 0x00a40904 (h264-scaling-matrix): value=unsupported payload type flags=has-payload
         h264_decode_parameters 0x00a40907 (h264-decode-params): value=unsupported payload type flags=has-payload
    vp9_frame_decode_parameters 0x00a40a2c (unknown): type=261 value=unsupported payload type flags=has-payload
      vp9_probabilities_updates 0x00a40a2d (unknown): type=260 value=unsupported payload type flags=has-payload
    hevc_sequence_parameter_set 0x00a40a90 (unknown): type=270 value=unsupported payload type flags=has-payload
     hevc_picture_parameter_set 0x00a40a91 (unknown): type=271 value=unsupported payload type flags=has-payload
          hevc_slice_parameters 0x00a40a92 (unknown): type=272 dims=[600] flags=has-payload, 0x00000800
            hevc_scaling_matrix 0x00a40a93 (unknown): type=273 value=unsupported payload type flags=has-payload
         hevc_decode_parameters 0x00a40a94 (unknown): type=274 value=unsupported payload type flags=has-payload
               hevc_decode_mode 0x00a40a95 (menu)   : min=1 max=1 default=1 value=1 (Frame-Based)
                                1: Frame-Based
                hevc_start_code 0x00a40a96 (menu)   : min=1 max=1 default=1 value=1 (Annex B Start Code)
                                1: Annex B Start Code