avdevice_list_output_sinks 2265 fftools/cmdutils.c     if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
avdevice_list_output_sinks  507 libavdevice/avdevice.h int avdevice_list_output_sinks(struct AVOutputFormat *device, const char *device_name,