void *TxtFileFrame::LoadFile()
// call LoadCameraFile() if FrameSensor is camera or depth type
void *TxtFileFrame::LoadCameraFile()
// load the data based on filename and input_pixel_format, if camera->PixelFormat != input_pixel_format, convert the data and return
class ImageFileFrame : public SLAMFileFrame
void* ImageFileFrame::LoadFile()
// LoadPng() or LoadPbm() based on substr of filename