Re: [Linphone-developers] Video? Almost working...

[Michael Frey]

Simon,

Thanks for the reply.  I now have things working correctly.  I must  
have not mentioned I am running this on an ARM based processor.   
Therefore I was running into the same problems that Uwe was having.   
I alleviated the problem by increasing the rtp_payload_size in the  
encoder.  It seems that much more space is needed to encode a frame  
on the ARM platform.  It might have to do with padding for memory  
alignment.

Video is now working great!!!

Thanks for the great work.

Michael

On Nov 7, 2005, at 10:05 AM, Simon Morlat wrote:

> Hello,
>
> First, thanks for reporting your test experience.
>
> 1. it uses a different port than the audio rtp port that you can  
> configure
> only manually from the config file (~/.gnome2/linphone ):
>
> video_rtp_port=9078
>
> Maybe this port isn't opened on the firewall ?
>
> 2. I have this behaviour when some packets are late (thus  
> untransmitted to the
> decoder).
> Can you check this is the case while looking at the rtp stats given  
> at the end
> of the call (using --verbose) ?
> If this is the case you can try increasing the video jitter  
> compensation:
>
> video_jitt_comp=100
>
> Simon
>
> Le Jeudi 27 Octobre 2005 14:30, Michael Frey a écrit :
> > Simon,
> >
> > I now have things working.  It turns out it was my v4l kernel
> > driver.  I now can send and receive video.  However there are two
> > issues.
> >
> > 1: Video does not work if behind a firewall -- while audio does.  Is
> > there something I can try to fix this?
> >
> > 2: The video packets being received are not quite right.  I get many
> > errors from the libavcodec when trying to decode the incomming
> > packets.  It is in the h.263 codec.  The image on the screen has some
> > of the correct picture but is mostly "garbage".
> >
> > Could the encode be going wrong?  Or the RTP packets not being set up
> > correctly?  Does this work for you?
> >
> > Michael
> >
> > On Oct 27, 2005, at 10:13 AM, Simon Morlat wrote:
> > > Hello,
> > >
> > > It seems you were running linphonec as root, isn't it ?
> > > I recommend not do that with experimental code, it can be the
> > > reason why your
> > > machine freezes.
> > > Try as a normal user and see what debug messages you have after  
> > > that.
> > >
> > > Simon
> > >
> > > Le Mardi 25 Octobre 2005 15:42, Michael Frey a écrit :
> > > > Has anyone been able to get video working?
> > > >
> > > > I have linphone built with video support and I get so far as when
> > > > launching linphonec I get a video window whith local live video
> > > > playback.  (looks great!)
> > > >
> > > > When I attempt to make a call, my machine freezes.  I know Video
> > > > support is experimental, but I was wondering if I could make it  
> > > > work
> > > > somehow.
> > > >
> > > >
> > > > Here is the output from the console:
> > > >
> > > > c sip:address@hidden
> > > > Contacting  sip:address@hidden
> > > > linphonec> Message:CALL_RINGING
> > > >
> > > > Warning:payload has no rtpmap.
> > > > Connected.
> > > > Message:ms_filter_add_link: OssRead,0 -> MULAWEncoder,0
> > > > Message:ms_filter_add_link: MULAWEncoder,0 -> RTPSend,0
> > > > Message:ms_filter_add_link: RTPRecv,0 -> MULAWDecoder,0
> > > > Message:ms_filter_add_link: MULAWDecoder,0 -> OssWrite,0
> > > > Message:Opening sound card [UCB1400 (Advanced Linux Sound
> > > > Architecture)] in capture mode with stereo=0,rate=8000,bits=16
> > > > Message:alsa_set_params:  blocksize=1024.
> > > > Message:Opening sound card [UCB1400 (Advanced Linux Sound
> > > > Architecture)] in playback mode with stereo=0,rate=8000,bits=16
> > > > Message:alsa_set_params:  blocksize=1024.
> > > > Message:Setting thread to realtime
> > > >
> > > > Message:Mediastreamer processing thread is exiting.
> > > > Message:Video encoder created: 40b1c930
> > > > Message:ms_filter_add_link: msv4l,0 -> AVEncoder,0
> > > > Message:ms_filter_add_link: AVEncoder,0 -> RTPSend,0
> > > > Message:ms_filter_add_link: RTPRecv,0 -> AVdecoder,0
> > > > Message:ms_filter_add_link: AVdecoder,0 -> MSSdlOut,0
> > > > Message:ms_filter_add_link: AVEncoder,1 -> MSSdlOut,1
> > > > Message:Getting video channel ZC301-2
> > > > Message:Channel is a camera
> > > > Message:A valid video channel was found.
> > > > Message:Picture properties: depth=24, palette=4.
> > > > Message:Using 4-frames mmap'd buffer.
> > > > Warning:ms_filter_search_upstream_by_type: filter AVEncoder has no
> > > > info.
> > > > Warning:ms_filter_search_upstream_by_type: filter AVEncoder has no
> > > > info.
> > > > Warning:ms_rtp_send_setup: could not find upstream codec.
> > > > Message:Setting thread to realtime
> > > >
> > > > Warning:Must catchup 95 miliseconds.
> > > > Warning:Must catchup 90 miliseconds.
> > > > Warning:Must catchup 81 miliseconds.
> > > > Warning:Must catchup 74 miliseconds.
> > > > Warning:Must catchup 66 miliseconds.
> > > > Warning:Must catchup 56 miliseconds.
> > > > Message:Using yuv overlay.
> > > >
> > > >
> > > > Thanks in advance,
> > > >
> > > > Michael
> > > >
> > > >
> > > >
> > > >
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