Changeset 618

Timestamp:

Jul 22, 2006 12:45:37 PM (18 years ago)

Author:

bennylp

Message:

Added PJMEDIA_RTCP_IGNORE_FIRST_PACKETS macro to let application decides how many first RTP packets to ignore when calculating jitter

Location:

pjproject/trunk/pjmedia

Files:

• include/pjmedia/config.h (modified) (1 diff)
• src/pjmedia/rtcp.c (modified) (1 diff)

pjproject/trunk/pjmedia/include/pjmedia/config.h

@@ -147 +147 @@
 
 /**
+ * Tell RTCP to ignore the first N packets when calculating the
+ * jitter statistics. From experimentation, the first few packets
+ * (25 or so) have relatively big jitter, possibly because during
+ * this time, the program is also busy setting up the signaling,
+ * so they make the average jitter big.
+ *
+ * Default: 25.
+ */
+#ifndef PJMEDIA_RTCP_IGNORE_FIRST_PACKETS
+#   define  PJMEDIA_RTCP_IGNORE_FIRST_PACKETS   25
+#endif
+
+
+/**
  * G.711 Appendix I Packet Lost Concealment (PLC).
  * Enabled only when floating point is enabled.

pjproject/trunk/pjmedia/src/pjmedia/rtcp.c

@@ -275 +275 @@
          * due to other threads working to establish the call
          */
-        if (sess->transit == 0 || sess->received < 25 ) {
+        if (sess->transit == 0 || 
+            sess->received < PJMEDIA_RTCP_IGNORE_FIRST_PACKETS) 
+        {
             sess->transit = transit;
             sess->stat.rx.jitter.min = 2000;