TOP LEVEL BIN

                   +---------------------------+
                   |       erdtlssrtpbin       |
                   |                           |
              >----o dtls_srtp_recv            o-R--> rtp_recv
                   |                           |
              >--S-o dtls_srtcp_recv           o-R--> rtcp_recv
                   |                           |
                   |                           o-R--> data_recv
                   |                           |
              <----o dtls_srtp_send            o-R--< rtp_send
                   |                           |
              <--S-o dtls_srtcp_send           o-R--< rtcp_send
                   |                           |
                   |                           o-R--< data_send
                   |                           |
                   +---------------------------+

                   S = sometimes pad, R = request pad

   MUXED SRTP/SRTCP

                                 +--------------------+     +-----------------+
                     rtp_send---o|rtp_sink     rtp_src|o-R-o|                 |
                                 |       srtpenc      |     |                 |     
                    rtcp_send-R-o|srtcp_sink  rtcp_src|o-R-o|                 |    +--
                                 +--------------------+     |     funnel      |o--o|nicesink
                                                            |                 |    +--
                                 +--------------------+     |                 |
                    data_send-R-o|           dtls_send|o---o|                 |
                                 |                    |     +-----------------+
                                 |  erdtlsconnection  |
                                 |                    |
            +--------------+  .-o|dtls_recv           |o-R----------data_recv
     --+    |          dtls|o-'  +--------------------+
nicesrc|o--o|  dtlsdemux   |
     --+    |       srt(c)p|o-.  +-----------+     +-----------+
            +--------------+  '-o|srtp    rtp|o---o|rtp        |
                                 |  srtpdec  |     |   funnel  |o---rtp_recv
                                o|srtcp  rtcp|o---o|rtcp       |
                                 +-----------+     +-----------+


   UNMUXED RTP/RTCP

                                 +--------------------+     +-----------------+
                     rtp_send-R-o|rtp_sink     rtp_src|o-R-o|                 |
                                 |       srtpenc      |     |                 |     
                                 |                    |     |                 |    +--
                                 +--------------------+     |     funnel      |o--o|nicesink
                                                            |                 |    +--
                                 +--------------------+     |                 |
                    data_send-R-o|           dtls_send|o---o|                 |
                                 |                    |     +-----------------+
                                 |  erdtlsconnection  |
                                 |                    |
            +--------------+  .-o|dtls_recv           |o-R----------data_recv
     --+    |          dtls|o-'  +--------------------+
nicesrc|o--o|  dtlsdemux   |
     --+    |          srtp|o-.  +-----------+     
            +--------------+  '-o|srtp    rtp|o---------------------rtp_recv
                                 |  srtpdec  |     
                                 |           |     
                                 +-----------+     

                                 +--------------------+     +-----------------+
                    rtcp_send-R-o|rtcp_sink   rtcp_src|o-R-o|                 |
                                 |       srtpenc      |     |                 |     
                                 |                    |     |                 |    +--
                                 +--------------------+     |     funnel      |o--o|nicesink
                                                            |                 |    +--
                                 +--------------------+     |                 |
                                 |           dtls_send|o---o|                 |
                                 |                    |     +-----------------+
                                 |  erdtlsconnection  |
                                 |                    |
            +--------------+  .-o|dtls_recv           |
     --+    |          dtls|o-'  +--------------------+
nicesrc|o--o|  dtlsdemux   |
     --+    |         srtcp|o-.  +-----------+     
            +--------------+  '-o|srtcp  rtcp|o---------------------rtcp_recv
                                 |  srtpdec  |     
                                 |           |     
                                 +-----------+