[Linphone-users] Video transmission problem with linphone 3.5.2

[main tain]

Hi all,

When I start linphone I can see my own picture from the webcam on both machines 
(so the webcams are basically working). But when I call the other client (also 
running linphone 3.5.2), the video picture disappears and nothing is visible 
anymore. I can only hear voice.

I have tested it on different plattforms with the same result:

ubuntu 12.04 (64 bit) -> ubuntu 12.04 (64bit)
ubuntu 12.04 (64bit) -> Windows7 (32 bit)
ubuntu 12.04 (64 bit) -> Android 4 (linphone 1.2.2)

I tried it with and without a stun server. I tried it with both client in the 
same local network and connected to different ISPs.

I had a look on the log output, but cannot find any hint what could be wrong 
(attached at the end of this E-Mail).
The only warnings I get are: "[warning] No valid video stream defined" and 
"[warning] Not enough ref samples, using zeroes".
Does anybody has/had similar problems? Can this problem be related to my SIP 
provider (nfon.net)?
Since Video call support is a nice feature I would be very grateful for some 
hints.

best regards

main tain

Linphone log:
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.....
[20120602-11:39:58] [message] Call 0x27e0440: moving from state 
LinphoneCallOutgoingRinging to LinphoneCallConnected
[20120602-11:39:58] [message] ms_filter_unlink: 
MSFilePlayer:0x2803df0,0-->MSDtmfGen:0x2803a50,0
[20120602-11:39:58] [message] ms_filter_unlink: 
MSDtmfGen:0x2803a50,0-->MSAlsaWrite:0x2803b50,0
[20120602-11:39:58] [message] Audio (ring) MSTicker thread exiting
[20120602-11:39:58] [message] Audio bandwidth for this call is 80
[20120602-11:39:58] [message] Payload's bitrate is 80000
[20120602-11:39:58] [message] Setting audio encoder network bitrate to 80000
[20120602-11:39:58] [message] MSAlawEnc: got ptime=20
[20120602-11:39:58] [message] ms_filter_link: 
MSAlsaRead:0x2803a50,0-->MSSpeexEC:0x27e7c00,1
[20120602-11:39:58] [message] ms_filter_link: 
MSSpeexEC:0x27e7c00,1-->MSVolume:0x2806540,0
[20120602-11:39:58] [message] ms_filter_link: 
MSVolume:0x2806540,0-->MSAlawEnc:0x2809810,0
[20120602-11:39:58] [message] ms_filter_link: 
MSAlawEnc:0x2809810,0-->MSRtpSend:0x27544d0,0
[20120602-11:39:58] [message] ms_filter_link: 
MSRtpRecv:0x280aa20,0-->MSAlawDec:0x2806440,0
[20120602-11:39:58] [message] ms_filter_link: 
MSAlawDec:0x2806440,0-->MSDtmfGen:0x2803b50,0
[20120602-11:39:58] [message] ms_filter_link: 
MSDtmfGen:0x2803b50,0-->MSVolume:0x280a4d0,0
[20120602-11:39:58] [message] ms_filter_link: 
MSVolume:0x280a4d0,0-->MSEqualizer:0x27edb00,0
[20120602-11:39:58] [message] ms_filter_link: 
MSEqualizer:0x27edb00,0-->MSSpeexEC:0x27e7c00,0
[20120602-11:39:58] [message] ms_filter_link: 
MSSpeexEC:0x27e7c00,0-->MSAlsaWrite:0x27f5d70,0
[20120602-11:39:58] [message] Initializing speex echo canceler with 
framesize=64, filterlength=2000, delay_samples=0
[20120602-11:39:58] [message] Priority used: 99
[20120602-11:39:58] [message] Audio MSTicker setpriority() failed: Permission 
denied, nevermind.
[20120602-11:39:58] [message] Filter MSRtpRecv is already being scheduled; 
nothing to do.
[20120602-11:39:58] [message] alsa_open_r: opening default at 8000Hz, bits=16, 
stereo=0
[20120602-11:39:58] [warning] alsa_set_params: periodsize:256 Using 256
[20120602-11:39:58] [warning] alsa_set_params: period:8 Using 8
[20120602-11:39:58] [message] alsa_open_r: Audio params set
[20120602-11:39:58] [message] ms_ticker_set_time_func: ticker updated.
[20120602-11:39:58] [warning] Getting reference signal but no echo to 
synchronize on.
[20120602-11:39:58] [warning] Not enough ref samples, using zeroes
[20120602-11:39:58] [message] alsa_open_w: opening default at 8000Hz, bits=16, 
stereo=0
[20120602-11:39:58] [warning] alsa_set_params: periodsize:256 Using 256
[20120602-11:39:58] [warning] alsa_set_params: period:8 Using 8
[20120602-11:39:58] [message] msv4l2_thread exited.
[20120602-11:39:58] [message] msv4l2 thread has joined.
[20120602-11:39:58] [message] ms_filter_unlink: 
MSV4L2Capture:0x2779080,0-->MSPixConv:0x279dfb0,0
[20120602-11:39:58] [message] ms_filter_unlink: 
MSPixConv:0x279dfb0,0-->MSX11Video:0x27a5b90,0
[20120602-11:39:58] [message] alsa_open_w: Audio params set
[20120602-11:39:58] [message] Video MSTicker thread exiting
[20120602-11:39:58] [warning] No valid video stream defined.
[20120602-11:39:58] [message] Call 0x27e0440: moving from state 
LinphoneCallConnected to LinphoneCallStreamsRunning
[20120602-11:39:58] [message] "nfon.net"/XXX authentication works.
[20120602-11:39:58] [message] Samples are back.
[20120602-11:39:58] [warning] Not enough ref samples, using zeroes
[20120602-11:39:58] [message] Samples are back.
[20120602-11:39:59] [message] bandwidth usage: audio=[d=80.9,u=81.1] 
video=[d=0.0,u=0.0] kbit/sec
[20120602-11:39:59] [message] Thread processing load: audio=5.457751    
video=0.000000
[20120602-11:39:59] [warning] Not enough ref samples, using zeroes
[20120602-11:39:59] [message] Samples are back.
[20120602-11:40:00] [message] bandwidth usage: audio=[d=82.3,u=80.8] 
video=[d=0.0,u=0.0] kbit/sec
[20120602-11:40:00] [message] Thread processing load: audio=4.372615    
video=0.000000
[20120602-11:40:00] [message] Authentication info for username [XXX], id[XXX], 
realm ["nfon.net"] added to eXosip
[20120602-11:40:00] [message] INFO: authinfo: "nfon.net" "nfon.net"
[20120602-11:40:00] [message] allocating transaction ressource 7 2076829155
[20120602-11:40:00] [message] allocating NICT context
[20120602-11:40:00] [message] DNS resolution with 109.68.96.128:5060
[20120602-11:40:00] [message] getaddrinfo returned the following addresses:
[20120602-11:40:00] [message] 109.68.96.128 port 5060
[20120602-11:40:00] [message] Message sent: (to dest=109.68.96.128:5060)
...
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