# Error while running hello_hal3_video / hello_hal3_tof

Source: https://forum.modalai.com/topic/1760/error-while-running-hello_hal3_video-hello_hal3_tof
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2023-02-02 11:03:23 UTC by Vaibhav Usapkar
Replies: 4 · Views: 1047

## Vaibhav Usapkar · 2023-02-02 11:03:23 UTC

Hi,
I am encountering below errors after running hello_hal3_video and hello_hal3_tof on the target respectively

"hello_hal3_video: error while loading shared libraries: libutils.so.0: wrong ELF class: ELFCLASS64"

"hello_hal3_video: error while loading shared libraries: libutils.so.0: wrong ELF class: ELFCLASS64"

Could you suggest what might be the issue.

## Reply by Chad Sweet (ModalAI staff) · 2023-02-02 15:07:11 UTC

As noted on the README, this isn't supported on VOXL 2. Please refer to voxl-camera-server source code for how to access imagers using HAL3

## Reply by Vaibhav Usapkar · 2023-02-06 10:37:09 UTC (in reply to Chad Sweet)

@Chad-Sweet How do we enable video encoding/decoding for HiRes Camera (IMX412) and stream it over RTSP using voxl-camera-server and voxl portal combination?

## Reply by Guest · 2023-02-06 23:47:44 UTC

For streaming over RTSP, please see our [docs](https://docs.modalai.com/voxl-streamer/) page on streaming over rtsp

## Reply by Vaibhav Usapkar · 2023-02-07 09:12:41 UTC (in reply to Guest)

Thanks @Alex-Gardner. I was able to do the streaming over rtsp. However the video appears grainy as well tinted in color when viewed in VLC.
![alt text](![fdb79480-1379-4177-9a5f-cf8168d694d9-image.png](https://forum.modalai.com/assets/uploads/files/1675761148824-fdb79480-1379-4177-9a5f-cf8168d694d9-image.png) image url)

Also, we would like to do binning operation on the video, could you give us pointers how to go about the same.