<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none"></style> </head> <body dir="ltr" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> Hi Herman >>> Can I get the image data into something like pixel array instead of solid file? It looks like you can use a appsink element. It allows for extracting of data from a pipeline into your app You can make a pipeline like autovideosrc ! videoconvert ! video/x-raw,format=rgb,width=640,height=480,framerate=20/1 ! appsink name="appsink_element" emit-signals=true Then in your app you can register a callback when a "new-sample" signal arrives. Have a look at the element's documentation <a href="https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-appsink.html" style="font-family: "Segoe UI", "Segoe WP", "Segoe UI WPC", Tahoma, Arial, sans-serif; font-size: 13.3333px;">https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-appsink.html</a> Hope that's what you are looking for Martin <div style="color: rgb(33, 33, 33);"> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="divRplyFwdMsg" dir="ltr">From: gstreamer-devel <gstreamer-devel-bounces@lists.freedesktop.org> on behalf of Théo LAVAUX <lavauxtheo@gmail.com> Sent: Friday, November 24, 2017 7:27 PM To: Discussion of the development of and with GStreamer Subject: Re: Get image buffer from local video stream <div> </div> </div> <div> <div dir="auto"> <div>First of all, I'm actually working under Windows, not Linux. <div dir="auto">Second, isn't there a Gstreamer tool that would prevent me from reading the file and seeking the cursor by myself? </div> Thanks for your response by the way. <div class="gmail_extra"> <div class="gmail_quote">Le 24 nov. 2017 19:50, "HermannSW" <<a href="mailto:hermann@stamm-wilbrandt.de">hermann@stamm-wilbrandt.de</a>> a écrit : <blockquote class="quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex"> <div class="quoted-text">> Can I get the image data into something like pixel array instead of solid file? > </div> Others may know. >From a performance perspective I would store the files of multifilesink under "/dev/shm", a tmpfs filesystem under many Unix-like OSes (exists even on Raspbian). All files will end up in memory which is efficient, but they are paged and not contiguous. For getting access to a single of those frames as pixel array in memory you would have to read them (eg. with fopen/fseek/ftell/fread). If you do that on a one frame after the other basis, your memory consumption would be N+1 frames, not bad compared to the N frames memory consumption you requested. <div class="elided-text"> -- Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer" target="_blank"> http://gstreamer-devel.966125.n4.nabble.com/</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </div> </blockquote> </div> </div> </div> </div> </div> </div> </body> </html>