Tegra multimedia API with OpenCV consumer

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hello,

I’m trying to get the tegra multimedia API working with OpenCV. I already found a thread from a while ago: https://devtalk.nvidia.com/default/topic/1014481/encoder-and-opencv-consumer

Until now I didn’t get it working, so I will work on that, but I was asking myself: that thread started in 2017. Maybe there is today a much more simple solution available? Can you help me with that?

Besides that: is there some sort of tutorial for the tegra multimedia API?

Thank you in advance.

2

Hello hardeman_erik,

   Take a look at the article in the below thread to get you started on Tegra multimedia API and openCV consumer as well.

https://devtalk.nvidia.com/default/topic/1069502/jetson-tx2/jetson-camera-application-guide-/post/5417643/#5417643

3

Thank you for your reply!

At the end of your guide there is a block of code about OpenCV wich contains this line:
cv::Mat imgbuf = cv::Mat(iSensorMode->getResolution().height(),

Looks like this line is unfinished, but I don’t know how to complete the line.

4

Hi Hardeman,
Thanks for pointing this one out. You may need to add iSensorMode->getResolution().width(), CV_8UC4 and pdata at the end. The code for which will be

cv::Mat imgbuf = cv::Mat(iSensorMode->getResolution().height(), iSensorMode->getResolution().width(),CV_8UC4, pdata);

We will correct it at our end.

Hope this article was helpful for you to understand the framework better. We are open to your valuable feedback.

5

Thank you very much. I got your OpenCV example working.