ff_decklink_list_output_devices   32 libavdevice/decklink_enc.h int ff_decklink_list_output_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list);
ff_decklink_list_output_devices   58 libavdevice/decklink_enc_c.c     .get_device_list = ff_decklink_list_output_devices,