Here are the data structures with brief descriptions:

CSmolRTSP_ChannelPair	An RTP/RTCP channel pair specified as a range, e.g., `interleaved=4-5`
CSmolRTSP_H264NalHeader	An H.264 NAL header
CSmolRTSP_H264NalUnit	An H.264 NAL unit
CSmolRTSP_H265NalHeader	An H.265 NAL header
CSmolRTSP_H265NalUnit	An H.265 NAL unit
CSmolRTSP_Header	An RTSP header
CSmolRTSP_HeaderMap	An RTSP header map
CSmolRTSP_NalTransportConfig	The configuration structure for SmolRTSP_NalTransport
CSmolRTSP_NalUnit	A generic NAL unit (either H.264 or H.265)
CSmolRTSP_PortPair	An RTP/RTCP port pair specified as a range, e.g., `client_port=3456-3457`
CSmolRTSP_Request	An RTSP request
CSmolRTSP_RequestLine	An RTSP request line
CSmolRTSP_Response	An RTSP response
CSmolRTSP_ResponseLine	An RTSP response line
CSmolRTSP_RtpHeader	An RTP header
CSmolRTSP_RtspVersion	An RTSP version
CSmolRTSP_SdpLine	An SDP line
CSmolRTSP_TransportConfig	The RTSP transport configuration