orangepi@orangepizero2:~$ sudo v4l2-ctl -d /dev/video1 --all Driver Info: Driver name : uvcvideo Card type : 2K USB Camera: 2K USB Camera Bus info : usb-5311000.usb-1 Driver version : 5.16.17 Capabilities : 0x84a00001 Video Capture Metadata Capture Streaming Extended Pix Format Device Capabilities Device Caps : 0x04200001 Video Capture Streaming Extended Pix Format Media Driver Info: Driver name : uvcvideo Model : 2K USB Camera: 2K USB Camera Serial : 46435000_P020300_SN0002 Bus info : usb-5311000.usb-1 Media version : 5.16.17 Hardware revision: 0x00003000 (12288) Driver version : 5.16.17 Interface Info: ID : 0x03000002 Type : V4L Video Entity Info: ID : 0x00000001 (1) Name : 2K USB Camera: 2K USB Camera Function : V4L2 I/O Flags : default Pad 0x01000007 : 0: Sink Link 0x0200000d: from remote pad 0x100000a of entity 'Processing 2': Data, Enabled, Immutable Priority: 2 Video input : 0 (Camera 1: ok) Format Video Capture: Width/Height : 640/480 Pixel Format : 'MJPG' (Motion-JPEG) Field : None Bytes per Line : 0 Size Image : 4194304 Colorspace : Default Transfer Function : Default (maps to Rec. 709) YCbCr/HSV Encoding: Default (maps to ITU-R 601) Quantization : Default (maps to Full Range) Flags : Crop Capability Video Capture: Bounds : Left 0, Top 0, Width 640, Height 480 Default : Left 0, Top 0, Width 640, Height 480 Pixel Aspect: 1/1 Selection Video Capture: crop_default, Left 0, Top 0, Width 640, Height 480, Flags: Selection Video Capture: crop_bounds, Left 0, Top 0, Width 640, Height 480, Flags: Streaming Parameters Video Capture: Capabilities : timeperframe Frames per second: 30.000 (30/1) Read buffers : 0
Please contact me if you have any questions. We are using the CDN service by Cloudflare, without nodes in Chinese mainland. As for the people in Chinese mainland should solve the problem, like the terrible loading speed, by themselves.