Hi Adrian, I am sorry i dont have a small proof of concept only the code integrated to a project (pokme). I guess it would need one or two day of work to setup a small example.
Cheers, Cedric -- Provide OpenGL services around OpenSceneGraph and more +33 659 598 614 Cedric Pinson mailto:[email protected] http://www.plopbyte.net On Sat, 2010-02-06 at 11:53 +0100, Adrian Egli OpenSceneGraph (3D) wrote: > Hi all, > > thanks for the short answer. i am looking for a small test.cpp > (osgviewer -> render2video -> stream) has someone still implemented > such a demo? > > /adrian > > 2010/2/2 Cedric Pinson <[email protected]> > Hi, > I render a video game based on osg into a video stream, you > can have an > idea here http://plopbyte.net/?page_id=6/ you need a firefox > plugin to > watch it. > > The basic idea works on linux with gstreamer. Dont tested on > windows but > because there is gstreamer, maybe it works too. > > In the game code i added a thread that write image at a given > rate. This > file is written into a file descriptor created with mkfifo. > Then i use a command line when the game is running: > gst-launch-0.10 filesrc location=myfifo ! videoparse width=800 > height=600 format=15 framerate=20/1 ! ffmpegcolorspace ! > videoscale ! > video/x-raw-yuv, width=800, height=600 ! videoflip method=5 ! > theoraenc > quality=40 ! oggmux ! gdppay ! tcpserversink port=12000 2>&1 > >>log > > The advantage using gstreamer is that you can use the codec > you want to > encode the video and stream it over the web. > > The code is inside this project http://hg.plopbyte.net/pokme/ > > Cheers, > Cedric > > -- > Provide OpenGL services around OpenSceneGraph and more > +33 659 598 614 Cedric Pinson > mailto:[email protected] > http://www.plopbyte.net > > > > On Mon, 2010-02-01 at 17:39 -0500, [email protected] wrote: > > Adrian - > > A way that I've used for that type of functionality is > through a > > Camera::DrawCallback subclass. You can get the rendered > scene through > > an (osg::Image) readPixels() call and pass it out through > whatever > > stream you > > like frame by frame. It isn't extremely fast since it > depends on the > > readPixels() call, but on a Quadro or the like it has always > been 'fast > > enough' for my purposes. > > > > For the video stream output, I can't offer too much advice > because I > > have usually been happy to work with the raw frames, but you > can pretty > > much tie whatever you like at that point. > > > > Rudy > > > > On Mon, Feb 01, 2010 at 03:51:27PM +0100, Adrian Egli > OpenSceneGraph (3D) wrote: > > > Hello all, > > > > > > i am looking for a library or idea how we could render osg > into a video > > > stream? > > > > > > /adrian > > > > > > -- > > > ******************************************** > > > Adrian Egli > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > _______________________________________________ > osg-users mailing list > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > -- > ******************************************** > Adrian Egli
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