Wireshark-bugs: [Wireshark-bugs] [Bug 4960] New: RTP Player: Audio and visual feedback get rapid
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 30 Jun 2010 02:03:57 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4960

           Summary: RTP Player: Audio and visual feedback get rapidly out
                    of sync
           Product: Wireshark
           Version: 1.4.0
          Platform: Other
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: Lars.Ruoff@xxxxxxxxxxxxxxxxxx


Build Information:
Version 1.4.0rc1 (SVN Rev 33190 from /trunk-1.4)

Copyright 1998-2010 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
SMI
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Jun
 9 2010), with AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

--
Steps to reprodue:
* Open attached file rtp-pulses.pcap.
* Select RTP packet, then Telephony -> RTP -> Stream analysis.
* Player -> Use RTP timestamp=Yes, Decode.
* Check stream, Play.
You will notice that the audio playback and graphical cursor indication will
increasingly get out of sync, the sound coming earlier and earlier with respect
to the graphical representation of the pulses.

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