Video Sink for GNU Radio

[alexc]

I'd like to have a video sink for GNU Radio that could display any common video format. I need that in order to send a video through a data processing pipeline (GNU Radio) and display it on the screen. Any ideas?
http://wiki.frednet.org/index.php/Tasks ... _GNU_Radio

[AndersFeder]

Can you tell me what video output formats / protocols GNU Radio supports? I can try to read up on a few of the options.

Personally, my immediate preference would be gstreamer for its flexibility.

[alexc]

GNU Radio treats everything as generic data streams that come from a source (file, USRP, network), as such it supports any video format without knowing about it. I tried to connect an UDP sink from GNU Radio to VLC reading from UDP but that didn't work probably because VLC uses a specific streaming protocol.

Yes, I think a gstreamer sink would be good, because it is also used for backend in the phonon multimedia framework, which in turn is used by Qt and I would very much like to use that. However, the phonon part in Qt is very new and I am not sure whether a Qt-based video player can read from all gstreamer sources or only those that can be treated a s a QIODevice.

[AndersFeder]

So, what you mean is that you need a solution you can just dump video data into with no format information, and leave it to the solution to figure out how to decode and render it?

[alexc]

No, the video format info is in the stream. It is basically the same setuip as when you stream video over the internet but here the internet is replaced with a GNU Radio processing chain.

[alexc]

I guess I can assume that nobody really cares about this so I'll just do it myself

Last week I had success with sending video through GNU Radio using UDP/RTP interface. This can provide a functional though not optimal solution. Later I will try the ffmpeg libraries.

[scasey]

What? We do care!

SC

[alexc]

I meant to care about it in the sense to take it on and do it.
I can see I closed the task already last year but I have no idea why.

[tristancho]

In the UPC we wait for your radio design in the Ground station.
Best,
Joshua

[alexc]

Hi Joshua,

Which design?
Send me the specs and I can propose a setup.

[scasey]

I meant to care about it in the sense to take it on and do it.
I can see I closed the task already last year but I have no idea why.

As always, we should create tasks and get them posted. When people show up they always ask: how can I help?

Can you provide a pointer to the existing task?

We can't have everyone working on the LEGO rover task and the Conceptual Mission Design.

SC

p.s. We also need to see more new members. Over the last six months the number of new members/month has fallen to ~ 5 - 6 (from its average or ~ 12 - 15). This isn't headed in the right direction. :/

[alexc]

Here is the link to the task in the wiki: http://wiki.frednet.org/index.php/Tasks ... _GNU_Radio

I think the forum has become pretty much dead. In the beginning there ware many active discussions with broad participation but over the last six months or so, it seems activity has moved to mailing lists.

[scasey]

What needs to get revived is the community management activity. We just aren't getting the same number of new members as we have in the past.

I frequently post to the forum to keep things going. I believe that Joshua does as well. You do too.

Is there anyone else I've forgotten?

SC :/

[tristancho]

Here is the link to the task in the wiki: http://wiki.frednet.org/index.php/Tasks ... _GNU_Radio

I think the forum has become pretty much dead. In the beginning there ware many active discussions with broad participation but over the last six months or so, it seems activity has moved to mailing lists.

Yes, I agree. Methods are evolutioning but I liked forums more than email-lists becuase are open.
Best,
Joshua Tristancho

[scasey]

We need to get more people using the forum. Who else is there? Monroe?

I find long e-mail like threads on the forum tiresome. I would prefer to see specific news updates, links to the wiki - i.e. posts with content. Many of the e-mail mosts are short blurbs.

Perhaps we need to move the Mark-lander material over? Most of those discussions seem to be of the ilk 'how come the chip-in button isn't working?'.

Perhaps all this discussion should more to another thread somewhere on the forum, too?

SC