Sends the video frame obtained from camera to the service.
Call this method to pass on the video sample buffer received by an AVCaptureVideoDataOutputSampleBufferDelegate object via the captureOutput:didOutputSampleBuffer:fromConnection: method. The service will pick the frames it needs from the sequence of the frames you supply.
Note: The video output must be configured to use the kCVPixelFormatType_32BGRA video pixel format. Other pixel formats are currently not supported.
A CMSampleBuffer object containing the video frame data.