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  4. How to record high resolution camera frames/videos?

How to record high resolution camera frames/videos?

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  • A Offline
    A Offline
    afdrus
    Regular
    wrote on last edited by
    #1

    Hi everyone,
    I am currently working with a Sentinel dev drone (VOXL2) on which voxl-camera-server version 1.3.5 and voxl-streamer version 0.4.1 are running. I tried to save frames through voxl-logger, but the saved images have a resolution preview_width x preview_height = 1280 x 720 instead of snapshot_width x snapshot_height = 3840 x 2160 (as specified in the voxl-camera-server.conf file). Is it possible to save the frame (and also stream the video) in the original format (3840 x 2160) and NOT in the preview format (1280 x 720)?
    Thank you in advance for your response.

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    • ? Offline
      ? Offline
      A Former User
      wrote on last edited by
      #2

      The frames that go through logger/streamer are the preview stream, to take a snapshot run voxl-send-command hires snapshot <file path> and it will save a full resolution jpeg snapshot to the filesystem. You can also not provide a file path and it will save to /data/snapshots/

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        afdrus
        Regular
        wrote on last edited by
        #3

        Thank you for your quick response. I tried to use the command that you suggested

        voxl-send-command hires snapshot
        

        After running this command the console prompts

        Successfully sent command to /run/mpa/hires/control
        

        However no path /data/snapshots/ is created and no .jpg is saved in the /data/ folder. If I try to run again the same command the following response appears

        Unable to find valid pipe that accepts control commands at: hires
        

        The only way to retry to take another snapshot is to reboot the system, but it keeps not saving any images.

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        • ? Offline
          ? Offline
          A Former User
          wrote on last edited by
          #4

          Sounds like an error occurred, what does journalctl -u voxl-camera-server say after running the commands?

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          • A Offline
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            afdrus
            Regular
            wrote on last edited by
            #5
            Feb 09 11:44:02 m0054 systemd[1]: Started voxl-camera-server.
            Feb 09 11:44:04 m0054 bash[1394]: ------ voxl-camera-server: Camera server is now running
            Feb 09 11:44:04 m0054 bash[1394]: WARNING: Camera stereo_front recieved much newer master than child
            Feb 09 11:44:04 m0054 bash[1394]: WARNING: Camera stereo_rear recieved much newer child than master 
            Feb 09 11:55:32 m0054 bash[1394]: Camera: hires taking snapshot (destination: /data/snapshots/hires-
            Feb 09 11:55:33 m0054 bash[1394]: free(): invalid pointer
            Feb 09 11:55:33 m0054 systemd[1]: voxl-camera-server.service: Main process exited, code=killed, stat
            Feb 09 11:55:33 m0054 systemd[1]: voxl-camera-server.service: Failed with result 'signal'.
            
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              aharvey
              Contributor
              wrote on last edited by
              #6

              I am having the same problem. I created a the snapshots folder too, and the camera server crashes.

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              • A afdrus

                Thank you for your quick response. I tried to use the command that you suggested

                voxl-send-command hires snapshot
                

                After running this command the console prompts

                Successfully sent command to /run/mpa/hires/control
                

                However no path /data/snapshots/ is created and no .jpg is saved in the /data/ folder. If I try to run again the same command the following response appears

                Unable to find valid pipe that accepts control commands at: hires
                

                The only way to retry to take another snapshot is to reboot the system, but it keeps not saving any images.

                A Offline
                A Offline
                aharvey
                Contributor
                wrote on last edited by
                #7

                @afdrus instead of rebooting, you can restart the server with: systemctl restart voxl-camera-server

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