➜  ~ v4l2-ctl --all
Driver Info:
	Driver name      : mtk-vcodec-dec
	Card type        : MT8195 video decoder
	Bus info         : platform:18000000.video-decoder
	Driver version   : 6.1.0
	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      : mtk-vcodec-dec
	Model            : mtk-vcodec-dec
	Serial           :
	Bus info         : platform:18000000.video-decoder
	Media version    : 6.1.0
	Hardware revision: 0x00000000 (0)
	Driver version   : 6.1.0
Interface Info:
	ID               : 0x0300000c
	Type             : V4L Video
Entity Info:
	ID               : 0x00000001 (1)
	Name             : mtk-vcodec-dec-source
	Function         : V4L2 I/O
	Pad 0x01000002   : 0: Source
	  Link 0x02000008: to remote pad 0x1000004 of entity 'mtk-vcodec-dec-proc' (Video Decoder): Data, Enabled, Immutable
Priority: 2
Format Video Capture Multiplanar:
	Width/Height      : 64/64
	Pixel Format      : 'MM21' (Mediatek 8-bit Block Format)
	Field             : None
	Number of planes  : 2
	Flags             :
	Colorspace        : Rec. 709
	Transfer Function : Default
	YCbCr/HSV Encoding: Default
	Quantization      : Default
	Plane 0           :
	   Bytes per Line : 64
	   Size Image     : 4096
	Plane 1           :
	   Bytes per Line : 64
	   Size Image     : 2048
Format Video Output Multiplanar:
	Width/Height      : 64/64
	Pixel Format      : 'VP9F' (VP9 Frame)
	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     : 4096
Selection Video Capture: compose, Left 0, Top 0, Width 64, Height 64, Flags:
Selection Video Capture: compose_default, Left 0, Top 0, Width 64, Height 64, Flags:
Selection Video Capture: compose_bounds, Left 0, Top 0, Width 64, Height 64, Flags:

Codec Controls

                   h264_profile 0x00990a6b (menu)   : min=0 max=4 default=2 value=2 (Main)
				1: Constrained Baseline
				2: Main
				4: High
                    vp8_profile 0x00990aff (menu)   : min=0 max=3 default=0 value=0 (0)
				0: 0
				1: 1
				2: 2
				3: 3
                    vp9_profile 0x00990b00 (menu)   : min=0 max=3 default=0 value=0 (0)
				0: 0
				1: 1
				2: 2
				3: 3

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
           vp8_frame_parameters 0x00a409c8 (vp8-frame): value=unsupported payload type flags=has-payload
    vp9_frame_decode_parameters 0x00a40a2c (unknown): type=261 value=unsupported payload type flags=has-payload
        av1_sequence_parameters 0x00a40af4 (unknown): type=280 value=unsupported payload type flags=has-payload
           av1_tile_group_entry 0x00a40af5 (unknown): type=281 dims=[512] flags=has-payload, 0x00000800
           av1_frame_parameters 0x00a40af6 (unknown): type=282 value=unsupported payload type flags=has-payload
                    av1_profile 0x00a40af7 (menu)   : min=0 max=2 default=0 value=0 (Main)
				0: Main
				1: High
				2: Professional
                      av1_level 0x00a40af8 (menu)   : min=0 max=23 default=0 value=0 (2.0)
				0: 2.0
				1: 2.1
				2: 2.2
				3: 2.3
				4: 3.0
				5: 3.1
				6: 3.2
				7: 3.3
				8: 4.0
				9: 4.1
				10: 4.2
				11: 4.3
				12: 5.0
				13: 5.1
				14: 5.2
				15: 5.3
				16: 6.0
				17: 6.1
				18: 6.2
				19: 6.3
				20: 7.0
				21: 7.1
				22: 7.2
				23: 7.3