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    VOXL camera configuration

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    • E
      Eric Katzfey ModalAI Team @Kris
      last edited by 4 Apr 2023, 22:52

      @Kris Maybe try fakesink instead?

      K 2 Replies Last reply 4 Apr 2023, 23:07 Reply Quote 0
      • K
        Kris @Eric Katzfey
        last edited by Kris 4 Apr 2023, 23:43 4 Apr 2023, 23:07

        @Eric-Katzfey
        I have tried both fakesink and playbin.
        Neither of them work either.
        Has anyone gotten gstreamer to successfully work on VOXL1?

        E 1 Reply Last reply 4 Apr 2023, 23:56 Reply Quote 0
        • K
          Kris @Eric Katzfey
          last edited by Kris 5 Apr 2023, 00:00 4 Apr 2023, 23:27

          @Eric-Katzfey
          I also have another UVC camera, but it only outputs MJPG (compressed) and YUY2 (uncompressed 640x480 30fps) formats.

          It works for streaming, but I am trying to record the video to the Seeker’s SD card.
          Is there a way to do this with Gstreamer or a similar program?

          1 Reply Last reply Reply Quote 0
          • K
            Kris @tom
            last edited by 4 Apr 2023, 23:31

            @tom
            Could this be the reason why no devices are found when I use gst-device-monitor-1.0 Video/Source on the VOXL1?

            1 Reply Last reply Reply Quote 0
            • K
              Kris
              last edited by 4 Apr 2023, 23:52

              I see that the VOXL1 has the gst-plugins-good.
              Is it possible to also add the gst-plugins-bad and gst-plugins-ugly?

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              • E
                Eric Katzfey ModalAI Team @Kris
                last edited by 4 Apr 2023, 23:56

                @Kris We use GStreamer in our voxl-streamer application. It does work on VOXL1.

                K 2 Replies Last reply 4 Apr 2023, 23:56 Reply Quote 0
                • K
                  Kris @Eric Katzfey
                  last edited by 4 Apr 2023, 23:56

                  @Eric-Katzfey
                  Ok, thank you for the confirmation.

                  1 Reply Last reply Reply Quote 0
                  • K
                    Kris @Eric Katzfey
                    last edited by 5 Apr 2023, 00:14

                    @Eric-Katzfey
                    If possible, could you please provide me with a VOXL1 working pipeline (streaming or recording) using any UVC camera of your choice?

                    E 1 Reply Last reply 5 Apr 2023, 00:24 Reply Quote 0
                    • E
                      Eric Katzfey ModalAI Team @Kris
                      last edited by 5 Apr 2023, 00:24

                      @Kris That's not how it works on VOXL1. The voxl-uvc-server application places frames into an MPA pipe and the voxl-streamer application (based on gstreamer) reads those frames and processes them for output using RTSP. However, I do believe that I did try command line gst-launch-1.0 style pipelines with UVC cameras in the past and they worked. I don't have an example of one though. You may want to start with one of our supported UVC cameras first and then try to get your particular UVC camera working. I always start with the Logitech C270. We list the specific cameras that we support because each one caused us some issues and required code changes to make it work. We even had to fork the libuvc library in order to make changes to that to get some of the cameras working properly.

                      K 2 Replies Last reply 5 Apr 2023, 00:37 Reply Quote 0
                      • K
                        Kris @Eric Katzfey
                        last edited by 5 Apr 2023, 00:37

                        @Eric-Katzfey
                        Ok, I understand.
                        Thank you for all your help and support with this issue.
                        I will try one of your tested & supported UVC cameras.

                        1 Reply Last reply Reply Quote 0
                        • K
                          Kris @Eric Katzfey
                          last edited by Kris 12 Apr 2023, 00:10 11 Apr 2023, 23:14

                          @Eric-Katzfey
                          I bought the Logitech C270 and tried testing it with some Gstreamer commands.
                          So far I have been able to use it on my Linux PC with these commands.

                          Connected to PC and viewing video;

                          gst-launch-1.0 -v v4l2src ! video/x-raw,format=YUY2 ! videoconvert ! autovideosink
                          

                          Connected to PC and recording to PC;

                          gst-launch-1.0 v4l2src device=/dev/video0 ! image/jpeg,width=640,height=480,framerate=30/1 ! jpegdec ! x264enc ! qtmux ! filesink location=C270.mp4 -e
                          

                          However, when I connect the C270 to the Seeker I cannot get any of these to work.
                          I have tried different video devices 0-3 and I have also substituted the autovideosink with fakesink but these changes are still not working.

                          Could you please show me a Gstreamer example for this Logitech C270 camera that works on the Seeker?
                          I would like to either stream, record, or stream+record (possibly using tee) the video using gst-launch-1.0.
                          Thank you

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