Hi Alexander, The de-facto standard way for sending video over the air (assuming you can't use wifi-like links) is to encapsulate all video and audio into a single, constant bitrate MPEG transport stream (aka. MPEG-TS). It's a packetized format designed specifically for transmission over lossy channels. MPEG-TS is used for DVB-T, DVB-S and probably also ATSC.
If you just want something quick & dirty you can try: http://www.irrational.net/2014/03/02/digital-atv/ Alex On Wed, Mar 26, 2014 at 5:42 PM, Alexander Buckley <[email protected]> wrote: > Hello all, > > I am completely stumped with trying to stream video using gnu radio (GRC) > and the USRP. I have been at it for an absurdly long time without success. I > could really use some help. (With Unbuntu and the latest UHD/GNU radio) > > There has got to be someone who has done this, but so far google is not my > friend. > > I have read so many sites of people looking for help and being given 'help' > that doesn't work, the internet is now fully spammed when it comes to this > subject. > > After days and days I read things like: > 'To correctly and completely use the RTP payloaders on the sender and the > receiver you need to write an application. It is not possible to write a > full blown RTP server with a single gst-launch-1.0 line.' > or that player 'x' isn't really player 'x' its a fork due to developers > fighting and is rather broken.. > > Most of what I read is about streaming over a network with a constant frame > rate (adaptive bit rate) which really does not relate well to USRP? > > > I have tried countless permutations of command line strings with various > options using gstreamer, ffmpeg, vlc. mplayer > I have tried UDP and File sink/source. > > I once I had it nearly working but could not get the player to stream with a > constant bitrate (which i think usrp would require?). I have lost track of > which player that was though. > > > At this point I am completely desperate for a a solution. I am looking for > any solution that works (even badly). > All I am to do is put together a demo, and it is becoming clear I have no > idea what I am doing. Either that or this as far far less trivial than one > would think. > > I would greatly appreciate some help here as this endeavour is now becoming > quite expensive. > > > regards > Alexander Buckley > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
