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    voxl-streamer client repetitive connect/disconnect

    Ask your questions right here!
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    • W
      wilkinsaf ModalAI Team @Eric Katzfey
      last edited by 20 Dec 2021, 18:48

      @Eric-Katzfey roger that. thank you for your support here Eric

      1 Reply Last reply Reply Quote 0
      • W
        wilkinsaf ModalAI Team @Eric Katzfey
        last edited by 20 Dec 2021, 18:55

        @Eric-Katzfey will post results after run

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        • W
          wilkinsaf ModalAI Team @Eric Katzfey
          last edited by 21 Dec 2021, 16:10

          @Eric-Katzfey Sorry for being such a pain, but it seems like this repo keeps moving.

          I went to https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-uvc-server

          but got this

          533db1c7-724e-4732-bf4a-7659d9acf39d-image.png

          I keep searching around for the repo, but can not find it

          E 1 Reply Last reply 21 Dec 2021, 20:39 Reply Quote 0
          • E
            Eric Katzfey ModalAI Team @wilkinsaf
            last edited by 21 Dec 2021, 20:39

            @wilkinsaf Sorry, it was setup as private. I changed it to public. Can you try again?

            W 2 Replies Last reply 22 Dec 2021, 03:21 Reply Quote 0
            • W
              wilkinsaf ModalAI Team @Eric Katzfey
              last edited by 22 Dec 2021, 03:21

              @Eric-Katzfey Got it, thank you!

              Will download and play with

              1 Reply Last reply Reply Quote 0
              • W
                wilkinsaf ModalAI Team @Eric Katzfey
                last edited by 22 Dec 2021, 03:25

                @Eric-Katzfey Will it remain public?

                E 1 Reply Last reply 23 Dec 2021, 15:48 Reply Quote 0
                • E
                  Eric Katzfey ModalAI Team @wilkinsaf
                  last edited by 23 Dec 2021, 15:48

                  @wilkinsaf Yes, it will remain public. Did you get a chance to see if the changes worked?

                  W 2 Replies Last reply 27 Dec 2021, 19:39 Reply Quote 0
                  • W
                    wilkinsaf ModalAI Team @Eric Katzfey
                    last edited by 27 Dec 2021, 19:39

                    @Eric-Katzfey Testing out today

                    1 Reply Last reply Reply Quote 0
                    • W
                      wilkinsaf ModalAI Team @Eric Katzfey
                      last edited by 28 Dec 2021, 18:46

                      @Eric-Katzfey

                      We seem to be having trouble finding the camera now which is weird. I wonder if we need to specifically download and install the drivers?

                      2f9579c4-88ea-4693-b7a8-e67415540bad-image.png

                      E 2 Replies Last reply 28 Dec 2021, 18:58 Reply Quote 0
                      • E
                        Eric Katzfey ModalAI Team @wilkinsaf
                        last edited by 28 Dec 2021, 18:58

                        @wilkinsaf No, you shouldn't need any drivers. Any USB device should be listed with lsusb, even without any specific drivers. Does it show up when plugged into a regular Linux computer?

                        W 1 Reply Last reply 28 Dec 2021, 18:59 Reply Quote 0
                        • W
                          wilkinsaf ModalAI Team @Eric Katzfey
                          last edited by 28 Dec 2021, 18:59

                          @Eric-Katzfey Yes, we have hardwired it into a computer before. We have seen the stream using ffmpeg on VOXL as well. We just can not seem to get voxl-streamer to work with it

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                            Eric Katzfey ModalAI Team @wilkinsaf
                            last edited by 28 Dec 2021, 19:00

                            @wilkinsaf If you unplug the camera from Voxl does anything disappear from the lsusb list?

                            W 1 Reply Last reply 28 Dec 2021, 20:52 Reply Quote 0
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                              wilkinsaf ModalAI Team @Eric Katzfey
                              last edited by wilkinsaf 28 Dec 2021, 20:53 28 Dec 2021, 20:52

                              @Eric-Katzfey

                              Yes, the top 3 entries in lsusb screenshots above are all cameras. I can unplug those one by one and see them disappear.
                              Would it matter if we have 2 UVC cameras?

                              E 2 Replies Last reply 28 Dec 2021, 20:56 Reply Quote 0
                              • E
                                Eric Katzfey ModalAI Team @wilkinsaf
                                last edited by 28 Dec 2021, 20:56

                                @wilkinsaf Just try one at a time for now. And when you plug the camera in do you see a new /dev/videoX entry appear?

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                                  Eric Katzfey ModalAI Team @wilkinsaf
                                  last edited by 28 Dec 2021, 20:57

                                  @wilkinsaf Also, were you able to get the ordering information for these cameras? If they aren't too expensive I would like to order at least one of them to test against.

                                  W 3 Replies Last reply 28 Dec 2021, 21:53 Reply Quote 0
                                  • W
                                    wilkinsaf ModalAI Team @Eric Katzfey
                                    last edited by 28 Dec 2021, 21:53

                                    @Eric-Katzfey

                                    Yes, let me try one at a time now.
                                    Here are the two cameras

                                    4de39b51-2708-4707-a1fe-d67161270aa3-image.png ![0_1640728100493_PXL_20211228_214717072.jpg](Uploading 100%)

                                    1. Banggood URL

                                    2. Blue Robotics URL

                                    E 1 Reply Last reply 28 Dec 2021, 22:26 Reply Quote 0
                                    • W
                                      wilkinsaf ModalAI Team @Eric Katzfey
                                      last edited by 28 Dec 2021, 21:59

                                      @Eric-Katzfey

                                      Good news, I was able to get voxl-uvc-server to spin up with one usb camera connected.
                                      21d09d1b-d888-45a2-a663-51af22ab926b-image.png

                                      However, I am getting this issue from voxl-streamer
                                      cc766c80-29ad-4160-8191-964e40998ea5-image.png

                                      Seems like I need to figure out the frame size and set the correct one. Let me play around with that now

                                      E 1 Reply Last reply 28 Dec 2021, 22:08 Reply Quote 0
                                      • W
                                        wilkinsaf ModalAI Team @Eric Katzfey
                                        last edited by 28 Dec 2021, 22:05

                                        @Eric-Katzfey Doesn't look to be frame size as the "sizes" seem non-deterministic
                                        f7371975-b223-4f6e-a9f0-3e2b3e744c26-image.png

                                        E 1 Reply Last reply 28 Dec 2021, 22:15 Reply Quote 0
                                        • E
                                          Eric Katzfey ModalAI Team @wilkinsaf
                                          last edited by 28 Dec 2021, 22:08

                                          @wilkinsaf Great, that's some progress! What about if you try the other camera? Not sure why the frame length is different. For a given resolution and frame format that number should be a constant. (e.g. 640 x 480 x 2).

                                          W 1 Reply Last reply 28 Dec 2021, 22:15 Reply Quote 0
                                          • W
                                            wilkinsaf ModalAI Team @Eric Katzfey
                                            last edited by 28 Dec 2021, 22:15

                                            @Eric-Katzfey

                                            Good suggestion. Let me try that.
                                            Check out the length when uvc server fires up

                                            Got frame callback! frame_format = 3, width = 640, height = 480, length = 613376, ptr = 0
                                            

                                            interesting

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