dshow_cycle_pins  712 libavdevice/dshow.c     if ((r = dshow_cycle_pins(avctx, devtype, sourcetype, device_filter, NULL)) < 0)
dshow_cycle_pins  747 libavdevice/dshow.c     if ((r = dshow_cycle_pins(avctx, devtype, sourcetype, device_filter, &device_pin)) < 0) {