On Tue, Jun 12, 2012 at 4:50 PM, flavio soares <[email protected]> wrote: > Hi, a quick question. I was wondering if there is a way of either: > > - make elphel's streaming server output the stream at a fraction of its > original FPS, say 1/2 of it; or
This feature was planned but never implemented if I remember correctly. > > - make elphel's streaming server output the stream at a fraction of its > original resolution, say 1/2 or 1/4 of it; or no > > - make gstreamer play the live stream at half of the original FPS, say 1/2 > of it. That should be possible. Check the "framerate=25/1" parameter http://code.google.com/p/gst-plugins-elphel/ has some examples how to show stream at reduced resolution. Regards Sebastian > > I ask this because making Elphel's stream output at 1/2 of the original FPS > or 1/2 resolution would (in theory) demand less CPU power for the streaming > and leave more for recording at the camera. With gstreamer, the case is > similar but on the other side - it would demand less CPU to debayer and > display the RAW stream live. > > (I am using a gstreamer live preview of 1/4 the stream original size and my > laptop's CPU, a 2005 Pentium M, can handle it fine actually. Even though, of > course, it would be very nice to save power and use less resourses. Based on > the tests I put on the article, the jitter starts to happen at frame sizes > between 350~450k). > > thanks! > > flavio > > _______________________________________________ > Support-list mailing list > [email protected] > http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com > _______________________________________________ Support-list mailing list [email protected] http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
