* (RealServer compatible)" or "RealServer Version v.e.r.sion (platform)",
* where platform is the output of $uname -msr | sed 's/ /-/g'. */
char server[64];
+
+ /** The "timeout" comes as part of the server response to the "SETUP"
+ * command, in the "Session: <xyz>[;timeout=<value>]" line. It is the
+ * time, in seconds, that the server will go without traffic over the
+ * RTSP/TCP connection before it closes the connection. To prevent
+ * this, sent dummy requests (e.g. OPTIONS) with intervals smaller
+ * than this value. */
+ int timeout;
} RTSPMessageHeader;
/**
* identifier that the client should re-transmit in each RTSP command */
char session_id[512];
+ /** copy of RTSPMessageHeader->timeout, i.e. the time (in seconds) that
+ * the server will go without traffic on the RTSP/TCP line before it
+ * closes the connection. */
+ int timeout;
+
+ /** timestamp of the last RTSP command that we sent to the RTSP server.
+ * This is used to calculate when to send dummy commands to keep the
+ * connection alive, in conjunction with \p timeout. */
+ int64_t last_cmd_time;
+
/** the negotiated data/packet transport protocol; e.g. RTP or RDT */
enum RTSPTransport transport;