Here are the data structures with brief descriptions:

Cagora_rtc_event_handler_t
Cagora_rtm_handler_t
Caudio_codec_option_t
Caudio_frame_info_t
Cconnection_info_t
Ccrypto_option_t
Clog_config_t
Crdt_status_info
Crtc_channel_options_t
Crtc_service_option_t
Cuser_info_s
Cvideo_frame_info_t