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    voxl-streamer client repetitive connect/disconnect

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    • 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

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

                @wilkinsaf You can try modifying this line in voxl-uvc-server: https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-uvc-server/-/blob/dev/src/main.c#L83

                Make it read: .size_bytes = 614400, \

                Then rebuild it and try again.

                W 1 Reply Last reply 28 Dec 2021, 22:17 Reply Quote 0
                • W
                  wilkinsaf ModalAI Team @Eric Katzfey
                  last edited by wilkinsaf 28 Dec 2021, 22:18 28 Dec 2021, 22:17

                  @Eric-Katzfey Sounds good.

                  The other camera is giving me this error
                  dab62085-ee06-487d-97c0-99bcd228e382-image.png

                  The one I compiled could not find the device at all
                  ad11d578-596e-44b3-b240-049dea293fa4-image.png

                  E 1 Reply Last reply 28 Dec 2021, 22:20 Reply Quote 0
                  • E
                    Eric Katzfey ModalAI Team @wilkinsaf
                    last edited by 28 Dec 2021, 22:20

                    @wilkinsaf Perhaps you are working on master branch? The latest and greatest (The one you should be using) is the dev branch.

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

                      @wilkinsaf Thanks! I'm going to order them so that I can have them as part of our normal USB UVC camera test suite.

                      W 1 Reply Last reply 28 Dec 2021, 22:30 Reply Quote 0
                      • W
                        wilkinsaf ModalAI Team @Eric Katzfey
                        last edited by 28 Dec 2021, 22:30

                        @Eric-Katzfey Thanks Eric!

                        I switched to dev branch (slightly embarrassing as you told me to switch to dev) and pull

                        voxl:~/voxl-uvc-server(dev)$ git pull origin dev
                        From https://gitlab.com/voxl-public/modal-pipe-architecture/voxl-uvc-server
                         * branch            dev        -> FETCH_HEAD
                        Already up-to-date.
                        

                        I made sure to install the correct libuvc ipk

                        voxl:~$ opkg install libuvc_1.0.2_202112182223.ipk
                        Collected errors:
                        * opkg_prepare_file_for_install: Refusing to load file 'libuvc_1.0.2_202112182223.ipk' as it matches the installed version of libuvc (1.0.2).
                        

                        I then built the voxl-uvc-server, ran Makefile, and tried to run
                        19c8da6a-c943-40f8-85b4-350d52459372-image.png

                        E 1 Reply Last reply 28 Dec 2021, 22:44 Reply Quote 0
                        • E
                          Eric Katzfey ModalAI Team @wilkinsaf
                          last edited by 28 Dec 2021, 22:44

                          @wilkinsaf Okay, interesting. Let's go back to the original camera with the incorrect size. Can you add the patch I suggested and see if you can make that camera work?

                          W 3 Replies Last reply 28 Dec 2021, 23:03 Reply Quote 0
                          • W
                            wilkinsaf ModalAI Team @Eric Katzfey
                            last edited by 28 Dec 2021, 23:03

                            @Eric-Katzfey ope, almost forgot. Yes, let me do that now

                            1 Reply Last reply Reply Quote 0
                            • W
                              wilkinsaf ModalAI Team @Eric Katzfey
                              last edited by 29 Dec 2021, 16:44

                              @Eric-Katzfey

                              For some reason now it is still struggling to find any device. I tried both cameras
                              1ca5e655-0e4d-46c5-a1a7-75a232497ec7-image.png

                              E 1 Reply Last reply 30 Dec 2021, 17:53 Reply Quote 0
                              • W
                                wilkinsaf ModalAI Team @Eric Katzfey
                                last edited by 29 Dec 2021, 16:53

                                @Eric-Katzfey

                                I know that it is there as ffmpeg picks up on it

                                6daa081a-c811-465d-b76b-e9f2a8e8c107-image.png

                                1 Reply Last reply Reply Quote 0
                                • E
                                  Eric Katzfey ModalAI Team @wilkinsaf
                                  last edited by 30 Dec 2021, 17:53

                                  @wilkinsaf Unfortunately, it's hard to debug this without actually having the camera in my test setup. I've never seen a camera stop being detected like that. I did order the cameras but won't have them in my possession until the 9th of January.

                                  W 1 Reply Last reply 6 Jan 2022, 01:20 Reply Quote 0
                                  • W
                                    wilkinsaf ModalAI Team @Eric Katzfey
                                    last edited by 6 Jan 2022, 01:20

                                    @Eric-Katzfey My apologies. I thought I sent a response to this.

                                    Totally get it. Debugging over a message board is really hard. I believe my associate is getting some of the cameras to your offices sooner than the 9th.

                                    I have been continuing to try different things on our end.

                                    E 1 Reply Last reply 12 Jan 2022, 00:00 Reply Quote 0
                                    • E
                                      Eric Katzfey ModalAI Team @wilkinsaf
                                      last edited by Chad Sweet 30 Mar 2022, 04:11 12 Jan 2022, 00:00

                                      @wilkinsaf I have both of the cameras now. I have updated libuvc to version 1.0.3 (http://voxl-packages.modalai.com/dev/) and voxl-uvc-server to version 0.0.6 (http://voxl-packages.modalai.com/dev/). The voxl-uvc-server update isn't really necessary but I cleaned up a little bit of the debug logic. There was a check that was failing in libuvc for the Blue Robotics camera (USB 32e4:9422, "H264 USB Camera") so I removed that check and then it started working. So far it has been reliable. The other camera (USB 337b:090c, "HBVCAM 5M-AF") was coming up without these changes. However, it isn't reliable. Sometimes uvc_open will fail, other times it will pass. If it passes then sometimes it will successfully start streaming and other times it will think it was successful but gets no frames. Not sure why it is having these issues so need to debug more.

                                      W 1 Reply Last reply 12 Jan 2022, 20:10 Reply Quote 0
                                      • W
                                        wilkinsaf ModalAI Team @Eric Katzfey
                                        last edited by 12 Jan 2022, 20:10

                                        @Eric-Katzfey Awesome!

                                        Thank you Eric. Will try that out and report back

                                        E 1 Reply Last reply 12 Jan 2022, 23:13 Reply Quote 0
                                        • E
                                          Eric Katzfey ModalAI Team @wilkinsaf
                                          last edited by Chad Sweet 30 Mar 2022, 04:10 12 Jan 2022, 23:13

                                          @wilkinsaf A new version of voxl-uvc-server was just posted here: http://voxl-packages.modalai.com/dev/. Documentation has been updated accordingly: https://docs.modalai.com/voxl-uvc-server/. Seems to be working pretty well with your cameras but one of them will fail occasionally. The program will fail and you can try again when that happens. Still not sure why it isn't reliable on all cameras.

                                          W 3 Replies Last reply 13 Jan 2022, 16:08 Reply Quote 0
                                          • W
                                            wilkinsaf ModalAI Team @Eric Katzfey
                                            last edited by 13 Jan 2022, 16:08

                                            @Eric-Katzfey Nice! Thank you for putting the time in to get that for us.

                                            1 Reply Last reply Reply Quote 0
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