File "F:\Python\python_libuvc\uvc.py", line 8, in main for device in uvc.device_list(): AttributeError: module 'uvc' has no attribute 'device_list'
然后,使用以下代码获取连接的 UVC 设备: importandroid.hardware.usb.UsbDevice;importandroid.hardware.usb.UsbManager;// 获取 USB 管理器实例UsbManagerusbManager=(UsbManager)getSystemService(Context.USB_SERVICE);// 获取已连接的所有 USB 设备HashMap<String,UsbDevice>deviceList=usbManager.getDeviceList();/...
private ICameraHelper mCameraHelper; private AspectRatioSurfaceView mCameraViewMain; private ICameraHelper.StateCallback mStateListener; //UVC摄像头状态回调 mStateListener = new ICameraHelper.StateCallback() { //插入UVC设备 @Override public void onAttach(UsbDevice device) { //设置为当前设备(如果没有...
*/publicvoidonCancel(UsbDevicedevice);} UVCCameraHelper中开启USB摄像头预览的方法: publicvoidrequestPermission(intindex){List<UsbDevice>devList=getUsbDeviceList();if(devList==null||devList.size()==0){return;}intcount=devList.size();if(index>=count)newIllegalArgumentException("index illegal,shou...
(deviceList.values());}else{for(finalUsbDevice device:deviceList.values()){for(finalDeviceFilter filter:filters){//增加判断filter.mSubclass == device.getDeviceSubclass()if(((filter!=null)&&filter.matches(device))||(filter!=null&&filter.mSubclass==device.getDeviceSubclass())){// when filter...
/** UVC device. * * Get this from uvc_get_device_list() or uvc_find_device(). */ struct uvc_device; typedef struct uvc_device uvc_device_t; /** Handle on an open UVC device. * * Get one of these from uvc_open(). Once you uvc_close() * it, it's no longer v...
4.获取设备列表:通过调用`uvc_get_device_list()`函数,可以获取到系统中可用的 USB 视频设备列表。 5.开启设备:使用`uvc_open()`函数打开指定的设备,例如: ```cpp UVC_ERROR error = uvc_open(uvc_ctx, "USB 视频设备名称", &uvc_device); if (error) { // 打开设备失败,请检查错误原因 } ``` ...
uvc_ctrl_init_device // 对于每一个entity(IT,PU,SU,OT等) list_for_each_entry(entity, &dev->entities, list) { // 取出bmControls bmControls = ... // 计算bmControls里位值为1的个数,就是支持的属性个数 ncontrols += hweight8(bmControls[i]); /...
* Get this from uvc_get_device_list() or uvc_find_device().*/ struct uvc_device; typedef struct uvc_device uvc_device_t; /** Handle on an open UVC device.* * Get one of these from uvc_open(). Once you uvc_close() ...
v4l2-ctl -d /dev/video0 --get-ctrl=brightness//dev/video0为设备名称# 获取支持的编码格式 # v4l2-ctl --list-formats -d /dev/video4 # 设置免征额控制参数 v4l2-ctl -d /dev/video0 --set-ctrl=brightness=0//set-ctrl=<name>=<value>v4l2-ctl -d /dev/video0 --set-ctrl analogue_gain=...