public bool OpenDevice()
{
if (IsOpen)
{
return(IsOpen);
}
IsOpen = OpenVideoDevice();
if (IsOpen)
{
int width = 0, height = 0, format = 0;
VsNetCameraSdk.Camera_GetInfo(_handle, ref width, ref height, ref format);
Width = width;
Height = height;
Format = (VideoDeviceDataFormat)format;
if (_buffer == null)
{
_buffer = new byte[GetBufferSize()];
}
//TODO 应使用配置
_frameRate = FrameRateSetting.GetCameraFrameRate(width + height);
StartPullDeviceData();
}
return(IsOpen);
}
internal VideoDevice(string videoDeviceName, int id, ILoggerFacade logger)
{
ID = id;
Name = videoDeviceName;
_logger = logger;
_handle = VsNetCameraSdk.Camera_AllocInstance();
SetDeviceAvailableStatus();
}
public bool CloseDevice()
{
if (!IsOpen)
{
return(true);
}
StopPullDeviceData();
IsOpen = false;
VsNetCameraSdk.Camera_CloseCamera(_handle);
return(true);
}
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
CloseDevice();
_buffer = null;
}
VsNetCameraSdk.Camera_FreeInstance(_handle);
disposedValue = true;
}
}
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
foreach (var videoDevice in _videoDeviceList)
{
videoDevice.Dispose();
}
}
VsNetCameraSdk.Camera_FreeInstance(_handle);
disposedValue = true;
}
}
private int GetVideoDeviceTotal()
{
return(VsNetCameraSdk.Camera_GetCount(_handle));
}
private string GetVideoDeviceName(int index)
{
byte[] b = new byte[50];
VsNetCameraSdk.Camera_GetName(_handle, index, ref b[0]);
return(b.GetString());
}
public VideoDeviceManager(ILoggerFacade logger)
{
_logger = logger;
_handle = VsNetCameraSdk.Camera_AllocInstance();
_videoDeviceList = GetVideoDeviceList();
}
private bool OpenVideoDevice()
{
return(VsNetCameraSdk.Camera_OpenCamera(_handle, ID, false, 0, 0));
}
private void CloseVideoDevice()
{
VsNetCameraSdk.Camera_CloseCamera(_handle);
}
private IntPtr GetDeviceBitmapInfoHeader()
{
return(VsNetCameraSdk.Camera_GetInfoEx(_handle));
}
private void GetDeviceData(ref byte[] b)
{
VsNetCameraSdk.Camera_QueryFrame(_handle, ref b[0], b.Length);
}
