[Elphel-support] Rebroadcast the live streaming?

[Esteban Correa-Agudelo]

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 <alexandre at elphel.com>

> 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 <
> esteban at sirius.utp.edu.co> 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
>> Support-list at support.elphel.com
>> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
>>
>>
>


-- 
Esteban M. Correa Agudelo
Laboratorio Sirius HPC
Universidad Tecnológica de Pereira
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