Is it possible to use libargus to preview the camera on a DRM?

[xinghui.g]

Hi nvidia,

Is it possible to use libargus to preview the camera on a DRM?

Our requirement is to display 6 cameras ( UYVY format) on DRM, if possible, please tell us how to do it!

Thanks~

[ShaneCCC]

May be reference to MMAPI sample code.

[xinghui.g]

Hi ShaneCCC,

Can you share more details please?

[ShaneCCC]

There is a DRM sample 08_video_dec_drm and yuvJpeg should be able combine for it.

Get the sample code by below command.

sudo apt list -a nvidia-l4t-jetson-multimedia-api
sudo apt install nvidia-l4t-jetson-multimedia-api=3x.xxxx.xxxx

[xinghui.g]

Hi ShaneCCC,

Run yuvJpeg sample and got follow errors:

nvbufsurftransform: Could not get EGL display connection
Argus Version: 0.99.3.3 (multi-process)
Camera device 0 was requested but only 1 is available.
PRODUCER: Creating output stream
(Argus) Error NotSupported: Failed to initialize EGLDisplay (in src/eglutils/EGLUtils.cpp, function getDefaultDisplay(), line 77)
PRODUCER: Launching consumer thread
(Argus) Error BadParameter:  (propagating from src/eglstream/FrameConsumerImpl.cpp, function initialize(), line 93)
(Argus) Error BadParameter:  (propagating from src/eglstream/FrameConsumerImpl.cpp, function create(), line 44)
Error generated. main.cpp, threadInitialize:92 Failed to create FrameConsumer
Error generated. /usr/src/jetson_multimedia_api/argus/samples/utils/Thread.cpp, threadFunction:126 (propagating)
Error generated. main.cpp, execute:233 (propagating)

Is libargus support YUV camera?

[ShaneCCC]

Run below command before run the argus_yubjpeg.
No argus only support Bayer sensor.
The yuv format is ISP output format. sensor(bayer format) ->NVCSI/VI → ISP → yuv → argus

export DISPLAY=:0

[xinghui.g]

Hi ShaneCCC,

Can I use sample:12_v4l2_camera_cuda and 08_video_dec_drm to capture camera and display on drm?

[DaneLLL]

Hi,
There is no existing sample for the use-case and you would need to refer to the samples and do integration:

/usr/src/jetson_multimedia_api/samples/13_argus_multi_camera/
/usr/src/jetson_multimedia_api/samples/08_video_dec_drm/

You can run 13 sample to use NvEglRenderer. If this works well, you can replace it with NvDrmRenderer.