<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"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p style="margin-top:0;margin-bottom:0">Hi, <br> </p> <p style="margin-top:0;margin-bottom:0">I was wondering if there is a gstreamer command where you can use one camerasrc in two applications? <br> </p> <p style="margin-top:0;margin-bottom:0">We have tried running two different programs with the same camera, with the following commands:</p> <p style="margin-top:0;margin-bottom:0"><br> </p> <ol style="margin-bottom: 0px; margin-top: 0px;"> <li>The first one uses darknet (YOLO) a detectionprogram for neural nettworks:<br> </li></ol> <p style="margin-top:0;margin-bottom:0"></p> <div>$ <span>./darknet detector demo data/obj.data cfg/yolov3-tiny-obj.cfg yolov3-tiny-obj_200000.weights "nvcamerasrc ! video/x-raw(memory:NVMM), width=(int)1280, height=(int)720,format=(string)I420, framerate=(fraction)30/1 ! nvvidconv flip-method=0 ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink"</span></div> <div><br> </div> <div> 2. The second one is a tracking application that uses the following pipe for videoloading;<br> </div> <div> <div>$"nvcamerasrc ! video/x-raw(memory:NVMM), format=(string)I420, width=640, height=480, framerate=30/1 ! nvvidconv flip-method=0 ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink";</div> <div><br> </div> </div> <div><span>...but when these are run simultaneously we get the following error:</span></div> <div><span></span><br> Setting pipeline to PAUSED ...<br> Socket read error. Camera Daemon stopped functioning.....<br> gst_nvcamera_open() failed ret=0<br> ERROR: Pipeline doesn't want to pause.<br> ERROR: from element /GstPipeline:pipeline0/GstNvCameraSrc:nvcamerasrc0: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.<br> Additional debug info:<br> gstbasesrc.c(3354): gst_base_src_start (): /GstPipeline:pipeline0/GstNvCameraSrc:nvcamerasrc0:<br> Failed to start<br> Setting pipeline to NULL ...<br> Freeing pipeline ...</div> <br> <p></p> <p style="margin-top:0;margin-bottom:0">Kind regards <br> </p> <p style="margin-top:0;margin-bottom:0">Marthe<br> </p> </div> </body> </html>