Changeset 2241 for pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c

Timestamp:

Aug 26, 2008 4:51:28 PM (16 years ago)

Author:

nanang

Message:

Ticket #602:

• Introduced new API pjmedia_rtp_session_init2() to enable intializing RTP session with non-default initial settings
• Updated stream so it can be created with non-default initial RTP settings.
• Updated pjsua-lib to make sure RTP timestamp and sequence contigue when stream session is restarted.

File:

• pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c (modified) (2 diffs)

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c

@@ -1159 +1159 @@
 
     if (call->session) {
+        pjmedia_rtcp_stat stat;
+
+        if (pjmedia_session_get_stream_stat(call->session, 
+                                            call->audio_idx, 
+                                            &stat) == PJ_SUCCESS)
+        {
+            /* Save RTP timestamp & sequence, so when media session is 
+             * restarted, those values will be restored as the initial 
+             * RTP timestamp & sequence of the new media session. So in 
+             * the same call session, RTP timestamp and sequence are 
+             * guaranteed to be contigue.
+             */
+            call->rtp_tx_seq_ts_set = 1 | (1 << 1);
+            call->rtp_tx_seq = stat.rtp_tx_last_seq;
+            call->rtp_tx_ts = stat.rtp_tx_last_ts;
+        }
+
         if (pjsua_var.ua_cfg.cb.on_stream_destroyed) {
             pjsua_var.ua_cfg.cb.on_stream_destroyed(call_id, call->session, 0);
@@ -1322 +1339 @@
         /* Set SSRC */
         si->ssrc = call->ssrc;
+
+        /* Set RTP timestamp & sequence, normally these value are intialized
+         * automatically when stream session created, but for some cases (e.g:
+         * call reinvite, call update) timestamp and sequence need to be kept
+         * contigue.
+         */
+        si->rtp_ts = call->rtp_tx_ts;
+        si->rtp_seq = call->rtp_tx_seq;
+        si->rtp_seq_ts_set = call->rtp_tx_seq_ts_set;
 
         /* Create session based on session info. */