On Tuesday, September 17, 2013 20:52:16 Curtis Olson wrote: > If someone decides to jump into this, another feature that would be cool > would be to stream the display out as a video stream which could then be > played by any number of video players on a remote computer (like mplayer.) > ffmpeg probably would provide library support to make this pretty > straightforward, but I haven't had a chance to dive in and see how > easy/hard it would be. > > One area where this feature could be useful is in UAV research and > simulation where you'd like to emulate a live video feed back to a ground > station. It could also be fun for sharing/broadcasting your simulator > session and probably could be made to work with a web video server. > > In my own experimentation I've been able to sort of do this by using ffmpeg > to capture an area of the screen, encode it as h.264 and send it off to a > remote destination as a udp video stream, for example: > > ffmpeg -f x11grab -s vga -r 15 -b 100k -preset ultrafast -tune zerolatency > -maxrate 100k -i :0.0+1,58 -f mpegts -vcodec h.264 udp:// > remote.host.name.org:1234 > > But this requires careful manual sizing and placement of my flightgear > window and it would be cool to have this built right in... I've seen other > apps that can do this so I know it's technically possible, and I imagine > not too much coding once you figure out the magic to make it happen. > > Curt. >
Hi, there, VLC does this better than ffmpeg, so it's probably a good idea to study it's codebase for streaming code. Also, MJPEG is nice, but as a container I'd choose Ogg/Theora instead of H264 since they're entirely open. Cheers, Adrian ------------------------------------------------------------------------------ LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
