[asterisk-commits] dvossel: trunk r195995 - in /trunk: ./ channels/chan_iax2.c

[SVN commits to the Asterisk project]

Author: dvossel
Date: Thu May 21 14:11:49 2009
New Revision: 195995

URL: http://svn.asterisk.org/svn-view/asterisk?view=rev&rev=195995
Log:
Merged revisions 195991 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r195991 | dvossel | 2009-05-21 14:04:56 -0500 (Thu, 21 May 2009) | 14 lines
  
  Sign problem calculating timestamp for iax frame leads to no audio on the receiving peer.
  
  There are rare cases in which a frame's delivery timestamp is slightly less than the iax2_pvt's offset.  This causes the pvt's timestamp to be a small negative number, but since the timestamp value is unsigned it looks like a huge positive number.  This patch checks for this negative case and sets the ms to zero.  A similar check is already done right below this one in the 'else' statement.
  
  (closes issue #15032)
  Reported by: guillecabeza
  Patches:
        chan_iax2.c.patch_timestamp uploaded by guillecabeza (license 380)
  Tested by: guillecabeza
  
  (closes issue #14216)
  Reported by: Andrey Sofronov
........

Modified:
    trunk/   (props changed)
    trunk/channels/chan_iax2.c

Propchange: trunk/
------------------------------------------------------------------------------
Binary property 'branch-1.4-merged' - no diff available.

Modified: trunk/channels/chan_iax2.c
URL: http://svn.asterisk.org/svn-view/asterisk/trunk/channels/chan_iax2.c?view=diff&rev=195995&r1=195994&r2=195995
==============================================================================
--- trunk/channels/chan_iax2.c (original)
+++ trunk/channels/chan_iax2.c Thu May 21 14:11:49 2009
@@ -4667,6 +4667,9 @@
 	/* If we have a time that the frame arrived, always use it to make our timestamp */
 	if (delivery && !ast_tvzero(*delivery)) {
 		ms = ast_tvdiff_ms(*delivery, p->offset);
+		if (ms < 0) {
+			ms = 0;
+		}
 		if (iaxdebug)
 			ast_debug(3, "calc_timestamp: call %d/%d: Timestamp slaved to delivery time\n", p->callno, iaxs[p->callno]->peercallno);
 	} else {