[Bug 796478] New: avfvideosrc Consuming Too much CPU

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796478

            Bug ID: 796478
           Summary: avfvideosrc Consuming Too much CPU
    Classification: Platform
           Product: GStreamer
           Version: 1.x
                OS: Mac OS
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: prafulla at algorythma.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Compare to videotestsrc, avfvideosrc taking too much CPU.
pipeline with videotestsrc CPU use :  ~ 28.2%
pipeline with avfvideosrc CPU use  :   ~ 207.2%


Following are terminal log for reference:




ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps
  PID TTY           TIME CMD
 1111 ttys000    0:00.49 -bash
12116 ttys000    0:20.14 ./objs/srs -c ./conf/srs.conf
12196 ttys000    0:00.06 tail -f objs/srs.log
14198 ttys002    0:00.46 -bash
22944 ttys002    0:03.17 gst-launch-1.0 videotestsrc is-live=true !
videoconvert ! x264enc tune=zerolatency ! video/x-h264 ! mpegtsmux name=mux !
queu
22733 ttys003    0:00.15 -bash
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps -p 22944 -o
%cpu,%mem
 %CPU %MEM
 25.6  0.4
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps -p 22944 -o
%cpu,%mem
 %CPU %MEM
 28.2  0.4
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps -p 22944 -o
%cpu,%mem
 %CPU %MEM
 28.5  0.4
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps
  PID TTY           TIME CMD
 1111 ttys000    0:00.49 -bash
12116 ttys000    0:20.15 ./objs/srs -c ./conf/srs.conf
12196 ttys000    0:00.06 tail -f objs/srs.log
14198 ttys002    0:00.47 -bash
22951 ttys002    0:11.46 gst-launch-1.0 avfvideosrc ! videoconvert ! x264enc
tune=zerolatency ! video/x-h264 ! mpegtsmux name=mux ! queue ! udpsink ho
22733 ttys003    0:00.17 -bash
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps -p 22951 -o
%cpu,%mem
 %CPU %MEM
211.1  0.7
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ ps -p 22951 -o
%cpu,%mem
 %CPU %MEM
207.2  0.7
ADFGTECHs-MacBook-Pro-2:iOSGstreamerClient prafullasingh$ gst-inspect-1.0
--version
gst-inspect-1.0 version 1.14.0
GStreamer 1.14.0

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