usb摄像头 按钮 静止按钮

来分析一个UVC的摄像头的枚举信息

UVC学习：UVC中断端点介绍
https://www.eet-china.com/mp/a269529.html

输入命令lsusb -d 0c45:62f1 -v
https://www.miaokee.com/705548.html

  ===>Video Class-Specific VS Video Input Header Descriptor<===

bLength:                           0x0E

bDescriptorType:                   0x24

bDescriptorSubtype:                0x01

bNumFormats:                       0x01

wTotalLength:                    0x0101  -> Validated

bEndpointAddress:                  0x81  -> Direction: IN - EndpointID:

bmInfo:                            0x00  -> Dynamic Format Change not Supported

bTerminalLink:                     0x04

bStillCaptureMethod:               0x02  -> Still Capture Method

bTriggerSupport:                   0x01  -> Hardware Triggering Support

bTriggerUsage:                     0x01  -> Host will notify client application of button event

bControlSize:                      0x01

Video Payload Format              0x00

https://learn.microsoft.com/zh-cn/windows-hardware/drivers/stream/usb-based-camera-with-a-capture-button

最近一个项目需要，控制usb摄像头进行拍摄，特别是支持摄像头自身的快照按钮进行快速拍摄，项目是用C#写的，在网上看了一些资料，选择了AForge库来调用摄像头，看了下AForge的帮助文档，正好支持硬件的快照功能。

C# usb摄像头拍摄 支持摄像头自身快照按钮
https://blog.csdn.net/qq_36851891/article/details/109067829

音视频测试–查看USB摄像头
https://zhuanlan.zhihu.com/p/449226318

Linux添加uvc摄像头上的按键拍照
https://blog.csdn.net/qq_31878855/article/details/94184195