Multi Devices Recording

C45513

Hi, i followed the documentation and tutorial to do recording with one device using oak.record([color.out.encoded, left.out.encoded, right.out.encoded, stereo.out.depth],path='./records',record_type=RecordType.VIDEO)
,and I like to do the same with multiple oak cameras, how can I do that?

I tried combining the code from sync example, but it doesn't work.

Thanks

jakaskerl

Hi @C45513
This would be very difficult to achieve using SDK, since the timestamp syncing example is meant for the API. The way SDK works is using callbacks, so you would need to rewrite the whole functionality to be able to record with multiple devices.
API is currently the easiest approach to multiple device recordings.

Thanks,
Jaka

C45513

Hi Jakaskerl,

Thanks for your response, and from my searching so far, if I would use api, I would most likely be using cv2.VideoWriter to do that.

Please do share any examples you have with me, that'd be much appreciated. Thanks!

jakaskerl

Hi C45513
First you need syncing - luxonis/depthai-experimentsblob/master/gen2-syncing/host-multiple-OAK-sync.py

Combine that with luxonis/depthai-experimentsblob/master/gen2-record-replay/record.py and you should have recording for multiple devices in sync.

We don't currently have any ready-made examples (that I know of) that would allow recording multiple devices.

Thoughts?
Jaka

jsiic

jakaskerl Hi jaka, I am trying to do multi device recording with the gen2-record-replay/record.py. The problem is that I can only set the encoding quality, but not the resolutions. There doesn't seem to be a parameter for resolution in the Record function. Since this is coded in API, I also expected that there would be the usual process of creating the camera nodes, which would allow me to set the resolution for the cameras, but the script seems to do without this.

How would I go about setting the resolutions of my cameras? I would like the RGB, and left/right Mono to be set at 720p.

EDIT: I found the solution. If you run the script with --help, it will show the full range of arguments from the ArgparseManager module. Then you will see options to change the resolution.