How can I use GPU methods from OpenCV library in the sample kms OpenCv Sample?

[Zorro Zombi]

How can I use GPU methods from OpenCV library in the sample kms OpenCv Sample? I tried method gpu::getCudaEnableDeviceCount() from plugin and got 0. But if I tried from simple cpp all ok I had 1. I built OpenCV library 2.4.13.2 with some flags and with WITH_CUDA=ON too. Have ideas? May be who did already try and got success?

[Zorro Zombi]

Seems it is GStreamer, I can call method with right functionality. Can I turn off GStreamer or it important part for Kurento? I tried update CMakeList with remove it but seems kms is using it (

[Micael Gallego]

KMS is based on GStreamer. You can't disable it.

What is exactly the problem? Can you share with all of us?

Micael Gallego

Profesor de la Escuela Técnica Superior de Ingeniería Informática URJC

https://www.linkedin.com/in/micaelgallego

On Thu, Feb 9, 2017 at 10:01 AM, Zorro Zombi <zz3...@gmail.com> wrote:

Seems it is GStreamer, I can call method with right functionality. Can I turn off GStreamer or it important part for Kurento? I tried update CMakeList with remove it but seems kms is using it (

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[Zorro Zombi]

Sure, the problem is the GStreamer default use old OpenCV which installed with ubuntu without support gpu or so old. The kms OpenCV plugin sample I built with new OpenCV 2.4.13.2 which I built with support Cuda and gpu. Now I should rebuild GStream with support last OpenCV if it is possible.

[Zorro Zombi]

Seems I fixed the main problem I rebuilt OpenCV with flag -D BUILD_SHARED_LIBS=ON and copied builded libraries to folder /usr/lib/x86_64-linux-gnu. It seems not nice but it is work. You can try it simple add to kms OpenCV plugin sample:

#include "opencv2/gpu/gpu.hpp"

....

cout << "count cuda devices:" << gpu::getCudaEnabledDeviceCount() << endl;

Now I have 1. We can close this question.