ff_decklink_list_input_devices   32 libavdevice/decklink_dec.h int ff_decklink_list_input_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list);
ff_decklink_list_input_devices  105 libavdevice/decklink_dec_c.c     .get_device_list = ff_decklink_list_input_devices,