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    voxl-streamer client repetitive connect/disconnect

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    • wilkinsafW
      wilkinsaf ModalAI Team @Eric Katzfey
      last edited by wilkinsaf

      @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?

      Eric KatzfeyE 2 Replies Last reply Reply Quote 0
      • Eric KatzfeyE
        Eric Katzfey ModalAI Team @wilkinsaf
        last edited by

        @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?

        1 Reply Last reply Reply Quote 0
        • Eric KatzfeyE
          Eric Katzfey ModalAI Team @wilkinsaf
          last edited by

          @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.

          wilkinsafW 3 Replies Last reply Reply Quote 0
          • wilkinsafW
            wilkinsaf ModalAI Team @Eric Katzfey
            last edited by

            @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

            Eric KatzfeyE 1 Reply Last reply Reply Quote 0
            • wilkinsafW
              wilkinsaf ModalAI Team @Eric Katzfey
              last edited by

              @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

              Eric KatzfeyE 1 Reply Last reply Reply Quote 0
              • wilkinsafW
                wilkinsaf ModalAI Team @Eric Katzfey
                last edited by

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

                Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                • Eric KatzfeyE
                  Eric Katzfey ModalAI Team @wilkinsaf
                  last edited by

                  @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).

                  wilkinsafW 1 Reply Last reply Reply Quote 0
                  • wilkinsafW
                    wilkinsaf ModalAI Team @Eric Katzfey
                    last edited by

                    @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
                    • Eric KatzfeyE
                      Eric Katzfey ModalAI Team @wilkinsaf
                      last edited by

                      @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.

                      wilkinsafW 1 Reply Last reply Reply Quote 0
                      • wilkinsafW
                        wilkinsaf ModalAI Team @Eric Katzfey
                        last edited by wilkinsaf

                        @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

                        Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                        • Eric KatzfeyE
                          Eric Katzfey ModalAI Team @wilkinsaf
                          last edited by

                          @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
                          • Eric KatzfeyE
                            Eric Katzfey ModalAI Team @wilkinsaf
                            last edited by

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

                            wilkinsafW 1 Reply Last reply Reply Quote 0
                            • wilkinsafW
                              wilkinsaf ModalAI Team @Eric Katzfey
                              last edited by

                              @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

                              Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                              • Eric KatzfeyE
                                Eric Katzfey ModalAI Team @wilkinsaf
                                last edited by

                                @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?

                                wilkinsafW 3 Replies Last reply Reply Quote 0
                                • wilkinsafW
                                  wilkinsaf ModalAI Team @Eric Katzfey
                                  last edited by

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

                                  1 Reply Last reply Reply Quote 0
                                  • wilkinsafW
                                    wilkinsaf ModalAI Team @Eric Katzfey
                                    last edited by

                                    @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

                                    Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                                    • wilkinsafW
                                      wilkinsaf ModalAI Team @Eric Katzfey
                                      last edited by

                                      @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
                                      • Eric KatzfeyE
                                        Eric Katzfey ModalAI Team @wilkinsaf
                                        last edited by

                                        @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.

                                        wilkinsafW 1 Reply Last reply Reply Quote 0
                                        • wilkinsafW
                                          wilkinsaf ModalAI Team @Eric Katzfey
                                          last edited by

                                          @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.

                                          Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                                          • Eric KatzfeyE
                                            Eric Katzfey ModalAI Team @wilkinsaf
                                            last edited by Chad Sweet

                                            @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.

                                            wilkinsafW 1 Reply Last reply Reply Quote 0
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