Here are the data structures with brief descriptions:
  rtp_msg_t | |
| rtp_receiver_ctx_t | |
| rtp_sender_ctx_t | |
| srtcp_hdr_t | |
| srtcp_trailer_t | |
| srtp_auth_t | |
| srtp_auth_test_case_t | |
| srtp_auth_type_t | |
| srtp_cipher_t | |
| srtp_cipher_test_case_t | |
| srtp_cipher_type_t | |
| srtp_crypto_policy_t | Srtp_crypto_policy_t describes a particular crypto policy that can be applied to an SRTP stream |
| srtp_debug_module_t | |
| srtp_event_data_t | Srtp_event_data_t is the structure passed as a callback to the event handler function |
| srtp_hdr_t | |
| srtp_hdr_xtnd_t | |
| srtp_master_key_t | Srtp_master_key_t represents a master key. There will be a Master Key Index and the Master Key associated with the Master Key Index. Need to also keep track of the Master Key Index Size to correctly read it from a packet |
| srtp_policy_t | Policy for an SRTP session |
 srtp_ssrc_t | An srtp_ssrc_t represents a particular SSRC value, or a `wildcard' SSRC |
