202         struct v4l2_frmivalenum intervalDesc {};  in getFrameIntervals()  struct
203         intervalDesc.index = index;  in getFrameIntervals()
204         intervalDesc.pixel_format = format->fcc;  in getFrameIntervals()
205         intervalDesc.width = frame->width;  in getFrameIntervals()
206         intervalDesc.height = frame->height;  in getFrameIntervals()
207         int ret = ioctl(mUVCFd.get(), VIDIOC_ENUM_FRAMEINTERVALS, &intervalDesc);  in getFrameIntervals()
211         if (intervalDesc.index != index) {  in getFrameIntervals()
213                   intervalDesc.index, index);  in getFrameIntervals()
216         switch (intervalDesc.type) {  in getFrameIntervals()
218                 ival = (intervalDesc.discrete.numerator * FRAME_INTERVAL_NUM) /  in getFrameIntervals()
219                        intervalDesc.discrete.denominator;  in getFrameIntervals()
223                 ival = intervalDesc.stepwise.min.numerator / intervalDesc.stepwise.min.denominator;  in getFrameIntervals()
226                 ALOGE("%s frame type %u invalid", __FUNCTION__, intervalDesc.type);  in getFrameIntervals()