func getVideoSource(videoFile string) (camera *C.CvCapture, err error) {
if videoFile != "" {
file := C.CString(videoFile)
camera = C.cvCaptureFromFile(file)
C.free(unsafe.Pointer(file))
if camera == nil {
return camera, errors.New("Unable to open a video file. Shutting down scout.")
}
return camera, nil
} else {
camera = C.cvCreateCameraCapture(0)
if camera == nil {
return camera, errors.New("Unable to open webcam. Shutting down scout.")
}
// Make sure the webcam is set to 1080p.
C.cvSetCaptureProperty(camera, C.CV_CAP_PROP_FRAME_WIDTH, 1920)
C.cvSetCaptureProperty(camera, C.CV_CAP_PROP_FRAME_HEIGHT, 1080)
C.cvSetCaptureProperty(camera, C.CV_CAP_PROP_BUFFERSIZE, 1)
return camera, nil
}
}
/* start capturing frames from camera: index = camera_index + domain_offset (CV_CAP_*) */
func NewCameraCapture(index int) *Capture {
cap := C.cvCreateCameraCapture(C.int(index))
return (*Capture)(cap)
}