Thank you for replying. I installed all the plugins required as you suggested. 
But, ran into new issue with telepathy stream bus.  I don't think this is 
related to gstreamer. Please help me if anybody knows this problem.

Requesting resource for direction 1 returned 1
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) _tf_stream_bus_message: 
Send codec changed: 0: audio PCMU clock:8000 channels:1 params:(nil)
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) _tf_stream_bus_message: 
Codecs changed
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) 
_tf_stream_try_sending_codecs: called (send_local:0 send_supported:0)
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) 
_tf_stream_try_sending_codecs: 0: audio PCMU clock:8000 channels:1
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) 
_tf_stream_try_sending_codecs: 8: audio PCMA clock:8000 channels:1
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) 
_tf_stream_try_sending_codecs: 100: audio telephone-event clock:8000 channels:1 
events=0-15
Telepathy-Qt4 (version 0.2.2) DEBUG: Entering Chan::Priv::updateContacts() with 
2 contacts

** (lt-call:27595): WARNING **: stream 1 0x93cfcd0 (audio) 
_tf_stream_bus_message: error (connection-failed (108)): Could not establish 
connection : Could not establish connection on the RTP component
** Message: tf_stream_error: stream error errorno=0 error=Could not establish 
connection
Telepathy-Qt4 (version 0.2.2) DEBUG: StreamedMediaChannel::onStreamError: 
stream 1 error: 0 - "Could not establish connection"
Telepathy-Qt4 (version 0.2.2) DEBUG: StreamedMediaChannel::onStreamRemoved: 
stream 1 removed
CallWidget::onStreamRemoved: Audio stream removed
** (lt-call:27595): DEBUG: stream 1 0x93cfcd0 (audio) close: close requested by 
connection manager
Telepathy-Qt4 (version 0.2.2) DEBUG: Got 
Channel.Interface.Group::MembersChanged with 0 added, 2 removed, 0 moved to LP, 
0 moved to RP, 1 being the actor, 0 the reason and "" the message
Telepathy-Qt4 (version 0.2.2) DEBUG:  synthesizing a corresponding 
MembersChangedDetailed signal
Telepathy-Qt4 (version 0.2.2) DEBUG: Got 
Channel.Interface.Group::MembersChangedDetailed with 0 added, 2 removed, 0 
moved to LP, 0 moved to RP and with 2 details
Telepathy-Qt4 (version 0.2.2) DEBUG: Building contacts for 2 handles with 0 
features
Telepathy-Qt4 (version 0.2.2) DEBUG:   1 satisfying and 0 other contacts
Telepathy-Qt4 (version 0.2.2) DEBUG:   0 features missing
Telepathy-Qt4 (version 0.2.2) DEBUG: Got 
Channel.Interface.Group::GroupFlagsChanged(1, 2)
Telepathy-Qt4 (version 0.2.2) DEBUG: Arguments after filtering (1, 2)
Telepathy-Qt4 (version 0.2.2) DEBUG: Emitting groupFlagsChanged with 2049 value 
1 added 2 removed
Telepathy-Qt4 (version 0.2.2) DEBUG: Emitting groupCanAddContactsChanged
Telepathy-Qt4 (version 0.2.2) DEBUG: Emitting groupCanRemoveContactsChanged
Telepathy-Qt4 (version 0.2.2) DEBUG: Got Channel::Closed
Telepathy-Qt4 (version 0.2.2) DEBUG: proxy invalidated: 
"org.freedesktop.Telepathy.Error.Cancelled": ""
Telepathy-Qt4 (version 0.2.2) DEBUG: Entering Chan::Priv::updateContacts() with 
2 contacts
Telepathy-Qt4 (version 0.2.2) DEBUG: Both the MCD and the introspect queue 
empty for the first time. Ready!
Telepathy-Qt4 (version 0.2.2) DEBUG: Channel fully ready
Telepathy-Qt4 (version 0.2.2) DEBUG:  Channel type 
"org.freedesktop.Telepathy.Channel.Type.StreamedMedia"
Telepathy-Qt4 (version 0.2.2) DEBUG:  Target handle 2
Telepathy-Qt4 (version 0.2.2) DEBUG:  Target handle type 1
Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: flags 2049
Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Number of handle owner mappings 0

Thanks in Advance,
Sai



--- On Thu, 3/18/10, Andre Moreira Magalhaes <[email protected]> 
wrote:

From: Andre Moreira Magalhaes <[email protected]>
Subject: Re: [Telepathy] Problems with gstreamer with telepathy-qt4
To: [email protected]
Date: Thursday, March 18, 2010, 6:58 AM

Hey,

It seems you are missing some gstreamer plugins. Take a look at 
examples/call/farsight-channel.cpp to see what plugins are being used and check 
if you have them installed.

BR
Andre

On 18/03/10 06:29, Sai TP wrote:
> Hi,
>   This may be a gstreamer problem but, it happens only with 
>telepathy-farsight. I found that the gstreamer is working properly in other 
>media functions. So, posting in telepathy list.
> 
> I am trying a gtalk call with telepathy-qt4 call example. When I tried to 
> call, the window simply shows call terminated. And on the console, I see 
> these errors. Did anybody face this before?
> Please let me know what is the mistake I did in gstreamer installation.
> 
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Self handle 1 tracked: yes
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper::setIntrospectCompleted: 
> feature: QPair("Tp::Channel",0) - success: true
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_object_ref: assertion `object != 
> NULL' failed
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_object_sink: assertion 
> `GST_IS_OBJECT (object)' failed
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_bin_add_many: assertion 
> `GST_IS_ELEMENT (element_1)' failed
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_element_link_many: assertion 
> `GST_IS_ELEMENT (element_1)' failed
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_object_ref: assertion `object != 
> NULL' failed
> 
> (lt-call:26952): GStreamer-CRITICAL **: gst_object_sink: assertion 
> `GST_IS_OBJECT (object)' failed
> ** (lt-call:26952): DEBUG: GetSessionHandlers returned 0 sessions
> Telepathy-Qt4 (version 0.2.2) DEBUG: No interface found for 
> "org.freedesktop.Telepathy.Channel.Type.StreamedMedia"
> Telepathy-Qt4 (version 0.2.2) DEBUG: Caching interface 
> "org.freedesktop.Telepathy.Channel.Type.StreamedMedia"
> Telepathy-Qt4 (version 0.2.2) DEBUG: Got reply to StreamedMedia::ListStreams()
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper::setIntrospectCompleted: 
> feature: QPair("Tp::StreamedMediaChannel",0) - success: true
> CallWidget::onChannelReady: number of streams: 0
> CallWidget::onBtnSendAudioToggled: checked: true
> CallWidget::onBtnSendAudioToggled: creating audio stream
> Telepathy-Qt4 (version 0.2.2) DEBUG: Returning cached interface for 
> "org.freedesktop.Telepathy.Channel.Type.StreamedMedia"
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper: supportedStatuses = 
> QSet()
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper: supportedFeatures = 
> QSet()
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper: new supportedStatuses = 
> QSet(0)
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper: new supportedFeatures = 
> QSet(QPair("Tp::MediaStream",0) )
> Telepathy-Qt4 (version 0.2.2) DEBUG: Got reply to 
> StreamedMedia::RequestStreams()
> Telepathy-Qt4 (version 0.2.2) DEBUG: 
> StreamedMediaChannel::onStreamDirectionChanged: stream 1 direction changed to 
> 3
> Telepathy-Qt4 (version 0.2.2) DEBUG: 
> StreamedMediaChannel::onStreamStateChanged: stream 1 state changed to 0
> ** (lt-call:26952): DEBUG: adding session handler 
> /org/freedesktop/Telepathy/Connection/gabble/jabber/sai_2epolycom_40gmail_2ecom_2fTelepathy/MediaChannel0/MediaSession2,
>  type rtp
> ** (lt-call:26952): DEBUG: calling MediaSessionHandler::Ready
> ** (lt-call:26952): DEBUG: _tf_session_dispose
> 
> ** (lt-call:26952): WARNING **: failed to create session: Could not create 
> GstRtpBin
> Telepathy-Qt4 (version 0.2.2) DEBUG: StreamedMediaChannel::onStreamRemoved: 
> stream 1 removed
> Telepathy-Qt4 (version 0.2.2) DEBUG: Got 
> Channel.Interface.Group::MembersChanged with 0 added, 1 removed, 0 moved to 
> LP, 0 moved to RP, 1 being the actor, 0 the reason and "" the message
> Telepathy-Qt4 (version 0.2.2) DEBUG:  synthesizing a corresponding 
> MembersChangedDetailed signal
> Telepathy-Qt4 (version 0.2.2) DEBUG: Got 
> Channel.Interface.Group::MembersChangedDetailed with 0 added, 1 removed, 0 
> moved to LP, 0 moved to RP and with 2 details
> Telepathy-Qt4 (version 0.2.2) DEBUG: Building contacts for 2 handles with 0 
> features
> Telepathy-Qt4 (version 0.2.2) DEBUG:   1 satisfying and 0 other contacts
> Telepathy-Qt4 (version 0.2.2) DEBUG:   0 features missing
> Telepathy-Qt4 (version 0.2.2) DEBUG: Got Channel::Closed
> Telepathy-Qt4 (version 0.2.2) DEBUG: proxy invalidated: 
> "org.freedesktop.Telepathy.Error.Cancelled": ""
> Telepathy-Qt4 (version 0.2..2) DEBUG: Building contacts for 1 handles with 0 
> features
> Telepathy-Qt4 (version 0.2.2) DEBUG:   1 satisfying and 0 other contacts
> Telepathy-Qt4 (version 0.2.2) DEBUG:   0 features missing
> Telepathy-Qt4 (version 0.2.2) DEBUG: Entering Chan::Priv::updateContacts() 
> with 2 contacts
> Telepathy-Qt4 (version 0.2.2) DEBUG: Both the MCD and the introspect queue 
> empty for the first time. Ready!
> Telepathy-Qt4 (version 0.2..2) DEBUG: Channel fully ready
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Channel type 
> "org.freedesktop.Telepathy.Channel.Type.StreamedMedia"
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Target handle 2
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Target handle type 1
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: flags 2049
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Number of handle owner mappings 0
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Number of current members 0
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Number of local pending members 0
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Number of remote pending members > 0
> Telepathy-Qt4 (version 0.2.2) DEBUG:  Group: Self handle 1 tracked: yes
> Telepathy-Qt4 (version 0.2.2) DEBUG: ReadinessHelper::setIntrospectCompleted: 
> feature: QPair("Tp::MediaStream",0) - success: true
> 
> Thanks,
> Sai
> 
> 
> 
> _______________________________________________
> telepathy mailing list
> [email protected]
> http://lists.freedesktop.org/mailman/listinfo/telepathy
>    

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