which opencv is needed by kurento-media-server?

[Qdog FBM]

Hi,
I have build kurento-media-server,kms-filter,kms-elements,kms-core 3 basic packages and others needed
but after I build successfully,I run kurento-media-server but failed with the following massage:

(gst-plugin-scanner:5186): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-1.0/libopencvfilter.so': /usr/lib/gstreamer-1.0/libopencvfilter.so: undefined symbol: _ZN2cv3Mat10deallocateEv

(gst-plugin-scanner:5186): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-1.0/libimageoverlay.so': /usr/lib/gstreamer-1.0/libimageoverlay.so: undefined symbol: cvAddS

(gst-plugin-scanner:5186): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-1.0/libgstopencv.so': /usr/lib/gstreamer-1.0/libgstopencv.so: undefined symbol: _ZN2cv3Mat10deallocateEv

(gst-plugin-scanner:5186): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-1.0/libmovementdetector.so': /usr/lib/gstreamer-1.0/libmovementdetector.so: undefined symbol: cvAddS

(gst-plugin-scanner:5186): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-1.0/libfacedetector.so': /usr/lib/gstreamer-1.0/libfacedetector.so: undefined symbol: _ZN2cv17CascadeClassifier16detectMultiScaleERKNS_3MatERSt6vectorINS_5Rect_IiEESaIS6_EEdiiNS_5Size_IiEESB_

so I have some questions:
1. what cause the problem of undefined symbol?
2.I found all of the so's is builded during kms-filter builded,and my opencv version is 2.4.10,is it because of the version of OpenCV is too high?

anybody give me some suggestions?

thanks very much

[Ivan Gracia]

Hi,

Could you please provide us more info? What did you compile and how? Which distro are you compiling in?

Ivan Gracia

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[Qdog FBM]

kurento-media-server 5.1.4
kms-core 5.1.3
kms-element 5.1.3
kms-elements 5.1.1

I have found the version of OpenCV is high than 2.0.0 in kms-filter of makefilelist.txt

but when I download opencv-2.0.0 and build it successfully, it failed when I build kms-filter

and I found opencv is needed by building facedetecting in kms-filter,so can we disable building the facedetecting  in kms-filter

or which version of opencv is needed,higher than 2.0.0,but mistake on 2.4.10

so anybody help me ?

在 2015年5月7日星期四 UTC+8下午2:55:14，Qdog FBM写道：

[son...@bu.edu]

Hi,

Have you solved this problem? I am using opencv 3.2 and have the same issue.

2017-04-28 14:45:33,379971 22380 [0x00007f20ce0b08c0] warning KurentoModuleManager      ModuleManager.cpp:63 loadModule()  Module opencv_filter/opencv-plugin-sample/src/gst-plugins/libopencvpluginsample.so cannot be loaded: opencv_filter/opencv-plugin-sample/src/gst-plugins/libopencvpluginsample.so: undefined symbol: _ZN2cv6String10deallocateEv