stream_component_open 1999 ffplay.c               stream_component_open(is, audio_index);
stream_component_open 2003 ffplay.c               stream_component_open(is, video_index);
stream_component_open 2010 ffplay.c               stream_component_open(is, subtitle_index);
stream_component_open 2235 ffplay.c           stream_component_open(is, stream_index);