Re: Real-time video streaming

[Ahmet DEMIR]

Hello Marcus,

I understand what I can use in my project, but I have a problem. Can you inform me how I can give my real-time video(taken from camera) as input to the uhd_packet_tx_tun example. For example, when I use a 'file source' block at the input, it says that "No connection known between domains stream and message." How can I do the necessary transformations? Or which input block is better to use here? Thanks for the help.

Regards.

Marcus Müller <address@hidden>, 7 Mar 2020 Cmt, 20:01 tarihinde şunu yazdı:

I'd really recommend using uhd_packet_tx_tun or any other of the current
examples over tunnel.py, which we mourningly¹ retired² a while³ ago.

Tunnel.py was meant as a demo of how to make GNU Radio work with network
interfaces, and as a proof of concept that you can make GNU Radio your
real-world packet transport. It was never meant to be a great
transceiver, just one that works and exercised our –now mostly replaced–
packet infrastructure.
Yet, we saw literally dozens of questions on people who thought it was
their optimum solution and were wondering why it wasn't as great as a
properly optimized transceiver.

Best regards,
Marcus

¹ ...with a vengeance
² ...six feet deep
³ to be exact, Fri Nov 4 09:43:04 2016 -0700 was the time the OFDM
tunnel.py was removed from the source tree.
On 07.03.20 10:12, sumit kumar wrote:
> Hello Ahmet, 
> If can make tunnel script working , then video transmission using vlc
> will be very straightforward. 
> We did this long back
> https://youtu.be/bKF67pFQy1k
> Regards
> Sumit 
>
> On Sat, Mar 7, 2020, 9:54 AM Ahmet DEMIR <address@hidden
> <mailto:address@hidden>> wrote:
>
>     Hi,
>     Thanks for the help.
>     I am trying to stream a real time video taken from a camera. I know
>     that I will use gstreamer to take and encode the video. And then
>     pass it to the gnuradio and do some digital processing operations on
>     it. And lastly by using a usrp, I will transmit it in radio
>     frequency range. Can I use uhd_packet_tx.grc example which is used
>     to message passing for this aim? Or how can I find the flowgraph of
>     video transmitter? I am using Gnuradio3.8 version and linux OS. I
>     will be very happy if you help me. 
>     Regards. 
>