# m500 accessing camera and image stream data

Source: https://forum.modalai.com/topic/666/m500-accessing-camera-and-image-stream-data
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-01-18 14:45:52 UTC by yu zhang
Replies: 8 · Views: 1079

## yu zhang · 2022-01-18 14:45:52 UTC

Hi team,
I am wondering how to open video view in QGC or there is another app for image viewing? I tried to hit the recording button in QGC, but I got this error: 
![Screen Shot 2022-01-19 at 1.12.26 AM.png](https://forum.modalai.com/assets/uploads/files/1642516455017-screen-shot-2022-01-19-at-1.12.26-am.png) 

1. I am not sure if this button could switch between the map view and video view in QGC, or I should run another app like Image View GUI? If I plug a sdcard, all of the image data will be stored atomically by the sdcard path? Or I could config a specific file path for storing?

2. I would access image stream data for development purposes, should I use any APIs to achieve this? And I check that the ``` voxl-camera-server ``` lists all 3 types of cameras' default settings. Should I change the settings if I would change the stereo to 90fps for example? Also, could I access all 3 cameras' data simultaneously? Please advise any related development documents for further instructions. Thanks.

## Reply by Eric Katzfey (ModalAI staff) · 2022-01-18 16:39:42 UTC

@yu-zhang Our recommended method for streaming video is via our voxl-streamer application. The documentation is here: https://docs.modalai.com/voxl-streamer/

## Reply by yu zhang · 2022-01-18 22:25:34 UTC (in reply to Eric Katzfey)

Hi @Eric-Katzfey ,
Thanks, and will the image view of the voxl-streamer look like the below Image Viewer GUI?

![Screen Shot 2022-01-19 at 9.23.21 AM.png](https://forum.modalai.com/assets/uploads/files/1642544610046-screen-shot-2022-01-19-at-9.23.21-am.png) 

I am also wondering how to show the resource monitoring via a command line like the left side of the screenshot?

## Reply by tom (ModalAI staff) · 2022-01-18 22:30:32 UTC

@yu-zhang The user is ssh'ed into the drone and using: [voxl-inspect-cpu](https://docs.modalai.com/voxl-cpu-monitor/)

## Reply by Eric Katzfey (ModalAI staff) · 2022-01-18 22:31:20 UTC (in reply to yu zhang)

@yu-zhang I'm not sure I understand your first question. voxl-streamer streams the image to a viewer. It isn't a viewer. The viewer is something like QGroundControl or VLC.

## Reply by yu zhang · 2022-01-18 22:49:53 UTC (in reply to tom)

@tom Thanks!

## Reply by yu zhang · 2022-01-18 22:56:51 UTC (in reply to Eric Katzfey)

@Eric-Katzfey I see, so what if I would have a viewer to show the stream data in real-time, how should I config it in QGC? 

If I would access the stream data remotely on PC, I could get data via voxl-streamer, right?

What if I would access the data onboard? For example, if I would develop a native VO application, should I still use voxl-streamer or other APIs?

## Reply by Eric Katzfey (ModalAI staff) · 2022-01-18 22:58:52 UTC (in reply to yu zhang)

@yu-zhang Please read through the documentation at https://docs.modalai.com/voxl-streamer/. This gives an overview on how the whole process is supposed to work.

## Reply by yu zhang · 2022-01-18 22:59:44 UTC (in reply to Eric Katzfey)

@Eric-Katzfey Thanks, all right I will have a look at it then.