How to safe exit the DRM gui

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hello, When I flashed image for Jeston nano, and use below api from offical DRM sdk to show image:

RgbDrmRenderer::GetInstance()->CreateInstance();
RgbDrmRenderer::GetInstance()->CpyToScrMem(data, DATA_LEN);
RgbDrmRenderer::GetInstance()->SetDrmPlane(0, 0, WIGHT_LEN, HEIGHT_LEN);
RgbDrmRenderer::GetInstance()->DestroyInstance();

How can I to stop DRM GUI?

3

Hi,
We have a sample for DRM:

/usr/src/jetson_multimedia_api/samples/08_video_dec_drm

https://docs.nvidia.com/jetson/l4t-multimedia/l4t_mm_08_video_decode_drm.html
Please take a look. May refer to it for your implementation.

4

Hi @DaneLLL, Yes, I had refered this sample code, but didn’t have exit DRM GUI, I have to use linux signal to program(kill program), then DRM GUI was exit, but it’s not good.

5

Hi,
The usecase may not be tested/verified. Please share a sample so that we can replicate the issue and do further check.

6

Okay, I have below code:

int main()
{
int drmWidth = 1920;
int drmHeight = 1080;
RgbDrmRenderer::GetInstance()->CreateInstance();
RgbDrmRenderer::GetInstance()->InitRgbDrmRenderer((char *)“rendererDemo”,
drmWidth, drmHeight, 30, 0, 0, 0, 0, FORMAT_ABGR8888);

cv::Mat frame(1080, 1920, CV_8UC4, cv::Scalar(0,0,0,255));
cv::putText(frame, “Hello.”, {50,290}, cv::FONT_HERSHEY_DUPLEX, 3, cv::Scalar(255, 255, 255, 255), 3, 8, 0);
RgbDrmRenderer::GetInstance()->CpyToScrMem(frame.data, drmWidthdrmHeight4);
RgbDrmRenderer::GetInstance()->SetDrmPlane(0, 0, drmWidth, drmHeight);
sleep(10)
RgbDrmRenderer::GetInstance()->DeInitRgbDrmRenderer();
RgbDrmRenderer::GetInstance()->DestroyInstance();
return 0;
}

then build program as name ‘sampleDrm’, run it I can saw the GUI show ‘Hello’ for 10 seconds, and program is done, but the DRM GUI always shows, can’t quit, but when I execute ‘killall sampleDrm’ in terminal, then the DRM GUI was quit.

7

Hi,
We have checked an don’t know about RgbDrmRenderer. Looks like it is not open standard. We have demonstration of UI plane in 08_video_dec_drm. You may check how it works and try to apply your usecase based on the sample.