Bug#602772: ekiga, remote can unmute audio and unsuspend video

David Fries david at fries.net
Sun Nov 7 21:59:03 UTC 2010


Package: ekiga
Version: 3.2.7-2
Severity: normal


Start an ekiga video conference, tell ekiga to suspend audio and video
output (other side gets silence and no more video as expected), but
when the remote suspends or resumes their video, the local side starts
to send audio and video without any indication to the user.  This can
allow the remote side to eavsdrop thinks they are muted and not
sending video.

In my case the remote client is the N900 Telepathy-SofiaSIP/0.6.2
client.

>From ekiga's point of view when only the video was suspended, received

v=0
o=- XXXXXXXXXXXX
s=-
t=0 0
m=audio 7078 RTP/AVP 18 96 8 0 99
c=IN IP4 XXXXXXXXXXXXX
a=rtpmap:18 G729/8000
a=rtpmap:96 ILBC/8000
a=fmtp:96 mode=30
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:99 telephone-event/8000
a=fmtp:99 0-15
m=video 9078 RTP/AVP 97
c=IN IP4 XXXXXXXXXXXXX
a=rtpmap:97 h264/90000
a=fmtp:97
sprop-parameter-sets=XXXXXXXXXXXX=XXXXXXXXXX==;packetization-mode=1;profile-level-id=XXXXXXXX
a=recvonly

Is ekiga seeing the "a=recvonly" and doing what it was instructed to
do, that is send video?

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (x86_64)

Kernel: Linux 2.6.36-rc7+ (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=en_US.ISO-8859-15 (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/dash

Versions of packages ekiga depends on:
ii  evolution-data-server  2.30.3-2          evolution database backend server
ii  gconf2                 2.28.1-5          GNOME configuration database syste
ii  libatk1.0-0            1.30.0-1          The ATK accessibility toolkit
ii  libavahi-client3       0.6.27-2          Avahi client library
ii  libavahi-common3       0.6.27-2          Avahi common library
ii  libavahi-glib1         0.6.27-2          Avahi glib integration library
ii  libc6                  2.11.2-6+squeeze1 Embedded GNU C Library: Shared lib
ii  libdbus-glib-1-2       0.88-2            simple interprocess messaging syst
ii  libebook1.2-9          2.30.3-2          Client library for evolution addre
ii  libedataserver1.2-13   2.30.3-2          Utility library for evolution data
ii  libgcc1                1:4.4.5-4         GCC support library
ii  libgconf2-4            2.28.1-5          GNOME configuration database syste
ii  libglib2.0-0           2.24.2-1          The GLib library of C routines
ii  libgtk2.0-0            2.20.1-2          The GTK+ graphical user interface 
ii  libldap-2.4-2          2.4.23-6          OpenLDAP libraries
ii  libnotify1 [libnotify1 0.5.0-2           sends desktop notifications to a n
ii  libopal3.6.8           3.6.8~dfsg-2      Open Phone Abstraction Library - s
ii  libpango1.0-0          1.28.3-1          Layout and rendering of internatio
ii  libpt2.6.7             2.6.7-1           Portable Tools Library
ii  libsasl2-2             2.1.23.dfsg1-6    Cyrus SASL - authentication abstra
ii  libsigc++-2.0-0c2a     2.2.4.2-1         type-safe Signal Framework for C++
ii  libstdc++6             4.4.5-4           The GNU Standard C++ Library v3
ii  libx11-6               2:1.3.3-3         X11 client-side library
ii  libxext6               2:1.1.2-1         X11 miscellaneous extension librar
ii  libxml2                2.7.7.dfsg-4      GNOME XML library
ii  libxv1                 2:1.0.5-1         X11 Video extension library

Versions of packages ekiga recommends:
ii  gvfs                     1.6.4-2         userspace virtual filesystem - ser
ii  yelp                     2.30.1+webkit-1 Help browser for GNOME

Versions of packages ekiga suggests:
pn  asterisk                      <none>     (no description available)
pn  gnugk                         <none>     (no description available)
pn  mediaproxy                    <none>     (no description available)
pn  rtpproxy                      <none>     (no description available)
pn  ser                           <none>     (no description available)
pn  siproxd                       <none>     (no description available)
pn  yate                          <none>     (no description available)

-- no debconf information






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