Esteban, If you have multiple cameras running in multicast mode in the same network, you can easily exceed the bandwidth. there is another solution - access camera from one program in unicast mode and retransmit two copies - one for analysis, another for Internet streaming.
Andrey On Tue, May 18, 2010 at 1:23 PM, Esteban Correa-Agudelo < [email protected]> wrote: > Hi, thanks for the fast response > > I wanna be more especific. I tested your command with vlc and it works :), > but my problem is a little different. let me describe the situation. > I have a computer vision system with algorithm that make image processing > in the video for traffic analysis. These videos are got it from multiples > elphel 353 cameras over the street with the help of avld software and > mencoder. Right now, I need to re-stream all cam videos to internet and I > have a unique IP, so I thought "Why not use a vlc to reestream the stream > while the algorithm is using the mencoder?" but when I use vlc, it stops the > mencoder and obviusly my algorithm stops too. So, I think that is a > multicast problem. I enabled it in the parameter editor and I try to access > to the IP 232.X.Y.Z but it doesn't work yet... > > That is why I cant reeconde multiple elphel camera at time in a PC. Because > one rtsp to a camera stops the others. > > Best Regards > > 2010/5/18 Alexandre Poltorak <[email protected]> > >> Hi Esteban, >> >> >> As Andrey wrote VideoAPI was designed for 333 camera and is not available >> on 353 series. >> >> By default 8.0.* firmware stream in unicast, so if your cameras just have >> unique IP it's OK. You can receive several streams to one PC for transcoding >> and restreaming. You can also switch the streamer to multicast mode. (in >> parameters editor) in this case you will also have to setup unique IP and >> multicast addresses. >> >> In both cases the stream is accessible on rtsp://camera_IP:554 >> >> To transcode & restream you can use VLC, for example : >> vlc rtsp://192.168.0.9:554 --sout >> '#transcode{vcodec=theo,vb=3600,scale=0.5,fps=10}:duplicate{dst=std{access=http,mux=ogg,dst=0.0.0.0:8080 >> }}' >> >> This command open the camera stream (unicast or multicast), resize it >> *0.5, limit FPS to 10, Video Bitrate to 3600, re-encode the stream in theora >> and stream it on all interfaces on the port 8080. >> >> To open this encoded stream on a client PC (may be over internet) you just >> need to open with vlc http://vlc_server_ip:8080 >> >> You can also use GStreamer framework to reencode & restream. >> >> Best regards, >> Alexandre Poltorak >> >> >> On Tue, May 18, 2010 at 5:41 PM, Esteban Correa-Agudelo < >> [email protected]> wrote: >> >>> Hi, >>> >>> I have more than one elphel camera inside a lan. I would like to stream >>> all cameras to internet using this guide in section RTP: >>> http://wiki.elphel.com/index.php?title=Using_Mplayer_With_Video_API >>> >>> but i can't find the sdp-file in http://192.168.0.9/mjpg/media.sdp >>> >>> where is it??? >>> >>> best regards >>> >>> -- >>> Esteban M. Correa Agudelo >>> Laboratorio Sirius HPC >>> Universidad Tecnológica de Pereira >>> >>> _______________________________________________ >>> Support-list mailing list >>> [email protected] >>> >>> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com >>> >>> >> > > > -- > Esteban M. Correa Agudelo > Laboratorio Sirius HPC > Universidad Tecnológica de Pereira > > _______________________________________________ > Support-list mailing list > [email protected] > http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com > >
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