public object InterfaceControl(MIGInterfaceCommand request)
{
request.response = ""; //default success value
//
if (request.command == Command.CAMERA_GETPICTURE)
{
// get picture from camera <nodeid>
// there is actually only single camera support though
// TODO: check if file exists before opening it ("/dev/video0")
if (_camerasource != IntPtr.Zero)
{
PictureBuffer pb = CameraCaptureV4LInterop.GetFrame(_camerasource);
var data = new byte[pb.Size];
Marshal.Copy(pb.Data, data, 0, pb.Size);
//System.IO.File.WriteAllBytes("html/test.jpg", data);
return(data);
}
}
else if (request.command == Command.CAMERA_GETLUMINANCE)
{
// TODO: ....
}
//
return(request.response);
}
/// <summary>
/// Deallocates the picture buffer and resets the related buffer properties
/// </summary>
private unsafe void Deallocate()
{
if (PictureBuffer == IntPtr.Zero)
{
return;
}
ffmpeg.av_free(PictureBuffer.ToPointer());
PictureBuffer = IntPtr.Zero;
PictureBufferLength = 0;
PictureBufferStride = 0;
PixelWidth = 0;
PixelHeight = 0;
}
public PictureRenderer(PictureBuffer pictureBuffer)
{
this.buffer = pictureBuffer ?? throw new ArgumentNullException(nameof(pictureBuffer));
}