Hello, I have a few questions about your series 2 and upcoming series 3 hardware !

First, about video encoding, I saw on the documentation that there is a limit of 3 parallel encoding streams

(here https://docs.luxonis.com/projects/api/en/latest/components/nodes/video_encoder/)

Will that limitation also be there on series 3 hardware ? We may need to encode 4 1080p h264 streams.

We plan on buying a OAK-SoM Pro S3 to test it. My understanding is that it is compatible with the base board of the OAK-FFC-4P, is that right ?

Also, you say the following in the page about OAK-SoM Pro s3 :

I am not sure I understand what you mean, this board is only for pre-testing the series 3 hardware because it is backward compatible, but in the future we will need to use the MAX version with a different base board ?

We currently use the IMX378W module, but we would need a wider field of view (mainly a wider vertical fov). Do you have any other compatible camera module that would have a wider fov except for arducam with m12 optics ?

Thanks !

Antoine

  • erik replied to this.
    5 days later

    Hi erik

    I actually was able to perform video encoding on 4 1080p streams at the same time (see below) but the cpus seemed to be having a hard time (not very smooth framerate)

    Do you think that with the additional computing power of series 3 hardware the encoding procedure would perform better ? Or is it capped by the encoding hardware silicon ?

    Regarding M12, our goal is actually to avoid M12 socket if possible 🙂 Do you have (or plan on having) anythin else with a wider vertical FOV than the IMX378-W ?

    To give you more context, we need a wide vertical fov in stereo, so we have two options (to the best of our knowledge) :

    • Two cameras with a wide fov.
    • Four cameras with narrower fov, with the stereo pairs inclined away from each other, and we stitch the vertical images to get a very wide vertical fov.

    Does the second option seem feasible to you ?

    We would like to do as much computing as possible on the device, so we have great hopes for your series 3 (and 4 ??) hardware 😃

    Thanks !

    Antoine

    • erik replied to this.

        Hi apirrone ,
        I just tested it, you are right, there's no limitation for num of streams, we just updated docs (pr here).

        Regarding CPUs, it's not due to videoEncoders - you can try linking one cam to 4 encoders (script here: and CPU is low. You can lower cameras 3A fps: https://docs.luxonis.com/projects/api/en/latest/tutorials/debugging/#cpu-usage

        Another option would be to order custom CCMs (with desired FOV) from Arducam. Second option would be possible, but likely more complicated.

        RVC3 isn't in a good state atm, ISP is quite limited, hopefully RVC4 will be better (wrt features you require).
        Thanks, Erik