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VOXL camera configuration

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  • Chad SweetC Offline
    Chad SweetC Offline
    Chad Sweet
    ModalAI Team
    wrote on last edited by
    #4

    To change the image sensor on Seeker, you would have to disassemble the front end which would likely result in damage. It is really not recommended.

    gstreamer should work similar to your USB setup on your Linux PC. Do you have a gstreamer command that is working on your PC?

    if you type ls -la /dev/video* with your camera plugged in and unplugged, you should easily see which device it is enumerating to

    What is the exact module number of the camera you are trying to install?

    KrisK 3 Replies Last reply
    0
    • Chad SweetC Chad Sweet

      To change the image sensor on Seeker, you would have to disassemble the front end which would likely result in damage. It is really not recommended.

      gstreamer should work similar to your USB setup on your Linux PC. Do you have a gstreamer command that is working on your PC?

      if you type ls -la /dev/video* with your camera plugged in and unplugged, you should easily see which device it is enumerating to

      What is the exact module number of the camera you are trying to install?

      KrisK Offline
      KrisK Offline
      Kris
      Regular
      wrote on last edited by
      #5

      @Chad-Sweet
      The gstreamer commands work on my Linux PC.
      I am able to stream and record video when my UVC 2.0 camera is plugged directly into my Linux PC.
      I just have to change some of the pipeline, because x264enc is not recognized on the VOXL. I use x264enc on my PC and omxh264enc on the VOXL.
      I am using the e-CAM83 UVC 2.0 camera.
      There is detailed information about this camera in this post.

      1 Reply Last reply
      0
      • Chad SweetC Chad Sweet

        To change the image sensor on Seeker, you would have to disassemble the front end which would likely result in damage. It is really not recommended.

        gstreamer should work similar to your USB setup on your Linux PC. Do you have a gstreamer command that is working on your PC?

        if you type ls -la /dev/video* with your camera plugged in and unplugged, you should easily see which device it is enumerating to

        What is the exact module number of the camera you are trying to install?

        KrisK Offline
        KrisK Offline
        Kris
        Regular
        wrote on last edited by
        #6

        @Chad-Sweet
        If it’s possible to configure the Seeker with Hires + TOF + Stereo, where one stereo camera is acting as a tracking camera, can I send my Seeker back to ModalAi for this setup?
        Would the Seeker still have the VIO and VOA capabilities with this kind of setup?

        1 Reply Last reply
        0
        • Chad SweetC Chad Sweet

          To change the image sensor on Seeker, you would have to disassemble the front end which would likely result in damage. It is really not recommended.

          gstreamer should work similar to your USB setup on your Linux PC. Do you have a gstreamer command that is working on your PC?

          if you type ls -la /dev/video* with your camera plugged in and unplugged, you should easily see which device it is enumerating to

          What is the exact module number of the camera you are trying to install?

          KrisK Offline
          KrisK Offline
          Kris
          Regular
          wrote on last edited by Kris
          #7

          @Chad-Sweet
          My UVC camera is recognized on the VOXL but the voxl-uvc-server will not connect to it.

          voxl:~$ show-video-device-info.sh
          /dev/video2: e-CAM83_USB 2560:c184
          /dev/video3: e-CAM83_USB 2560:c184
          

          Here is the ls -la /dev/video* command output from my Linux PC.

          crw-rw----+ 1 root video 81, 0  3月 31 09:20 /dev/video0
          crw-rw----+ 1 root video 81, 1  3月 31 09:20 /dev/video1
          crw-rw----+ 1 root video 81, 2  3月 31 09:20 /dev/video2
          crw-rw----+ 1 root video 81, 3  3月 31 09:20 /dev/video3
          
          
          1 Reply Last reply
          0
          • Chad SweetC Offline
            Chad SweetC Offline
            Chad Sweet
            ModalAI Team
            wrote on last edited by
            #8
            This post is deleted!
            1 Reply Last reply
            0
            • Chad SweetC Offline
              Chad SweetC Offline
              Chad Sweet
              ModalAI Team
              wrote on last edited by
              #9

              voxl-uvc-server only supports a few data types. You may need to modify the code to support the format of the e-CAM83

              If you have a gstreamer command that works on your linux box, it should work on VOXL as well though.

              KrisK 1 Reply Last reply
              0
              • Chad SweetC Chad Sweet

                voxl-uvc-server only supports a few data types. You may need to modify the code to support the format of the e-CAM83

                If you have a gstreamer command that works on your linux box, it should work on VOXL as well though.

                KrisK Offline
                KrisK Offline
                Kris
                Regular
                wrote on last edited by
                #10

                @Chad-Sweet
                Thank you so much for looking into this for me.

                Can I ask for some assistance with modifying the voxl-uvc-server?

                Do I modify the voxl-uvc-server C file, then make it into an ipk and push it into the VOXL?

                1 Reply Last reply
                0
                • Chad SweetC Offline
                  Chad SweetC Offline
                  Chad Sweet
                  ModalAI Team
                  wrote on last edited by
                  #11

                  The instructions are in the readme here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server

                  Chad SweetC 1 Reply Last reply
                  0
                  • Chad SweetC Chad Sweet

                    The instructions are in the readme here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server

                    Chad SweetC Offline
                    Chad SweetC Offline
                    Chad Sweet
                    ModalAI Team
                    wrote on last edited by
                    #12

                    @Chad-Sweet But yes, you modify the code, build it, and push the IPK to VOXL

                    KrisK 2 Replies Last reply
                    0
                    • Chad SweetC Chad Sweet

                      @Chad-Sweet But yes, you modify the code, build it, and push the IPK to VOXL

                      KrisK Offline
                      KrisK Offline
                      Kris
                      Regular
                      wrote on last edited by
                      #13

                      @Chad-Sweet
                      Is the Hires + TOF + Stereo (one stereo configured as the tracking camera) configuration possible?
                      In case the e-CAM83 will not work with the Seeker.

                      1 Reply Last reply
                      0
                      • Chad SweetC Chad Sweet

                        @Chad-Sweet But yes, you modify the code, build it, and push the IPK to VOXL

                        KrisK Offline
                        KrisK Offline
                        Kris
                        Regular
                        wrote on last edited by Kris
                        #14

                        @Chad-Sweet
                        Just to confirm,
                        If I modify the voxl-uvc-server/src/main.c file, to allow H264 format, would this work?
                        Or does the modification need to happen somewhere else in the main.c?
                        I’m just not exactly sure what or where I need to modify the voxl-uvc-server to make my UVC camera work.

                        Eric KatzfeyE 1 Reply Last reply
                        0
                        • KrisK Kris

                          @Chad-Sweet
                          Just to confirm,
                          If I modify the voxl-uvc-server/src/main.c file, to allow H264 format, would this work?
                          Or does the modification need to happen somewhere else in the main.c?
                          I’m just not exactly sure what or where I need to modify the voxl-uvc-server to make my UVC camera work.

                          Eric KatzfeyE Offline
                          Eric KatzfeyE Offline
                          Eric Katzfey
                          ModalAI Team
                          wrote on last edited by
                          #15

                          @Kris H264 is not supported in voxl-uvc-server. See https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server/-/blob/dev/src/main.c#L64. You may be able to add support for it but there are some tricky aspects to H264 streaming that you would need to be aware of before attempting it. Seems like you should start with the video3 interface since it supports 640x480 YUYV

                          KrisK 2 Replies Last reply
                          0
                          • Eric KatzfeyE Eric Katzfey

                            @Kris H264 is not supported in voxl-uvc-server. See https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server/-/blob/dev/src/main.c#L64. You may be able to add support for it but there are some tricky aspects to H264 streaming that you would need to be aware of before attempting it. Seems like you should start with the video3 interface since it supports 640x480 YUYV

                            KrisK Offline
                            KrisK Offline
                            Kris
                            Regular
                            wrote on last edited by
                            #16

                            @Eric-Katzfey
                            Ok, thank you.
                            I will start with attempting /dev/video3 first.

                            1 Reply Last reply
                            0
                            • Eric KatzfeyE Eric Katzfey

                              @Kris H264 is not supported in voxl-uvc-server. See https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server/-/blob/dev/src/main.c#L64. You may be able to add support for it but there are some tricky aspects to H264 streaming that you would need to be aware of before attempting it. Seems like you should start with the video3 interface since it supports 640x480 YUYV

                              KrisK Offline
                              KrisK Offline
                              Kris
                              Regular
                              wrote on last edited by Kris
                              #17

                              @Eric-Katzfey
                              It seems as if VOXL1 is not able to connect with my UVC camera.
                              Output when UVC camera is connected to the Seeker;

                              voxl:~$ gst-device-monitor-1.0 Video/Source
                              Probing devices...
                              
                              
                              (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              No devices found!
                              voxl:~$ gst-device-monitor-1.0             
                              Probing devices...
                              
                              
                              (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                              
                              Device found:
                              
                              	name  : msm_fd
                              	class : Video/Sink
                              	caps  : video/x-raw, format=(string)GRAY8, width=(int)[ 320, 854 ], height=(int)[ 240, 480 ], interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string){ bt601, smpte240m, bt709, 2:4:5:2, 2:4:5:3, 1:4:7:1, 2:4:7:1, 2:4:12:8, 2:6:5:7, 2:0:0:0 };
                              	properties:
                              		device.path = /dev/video1
                              		udev-probed = false
                              		device.api = v4l2
                              		v4l2.device.driver = msm_fd
                              		v4l2.device.card = msm_fd
                              		v4l2.device.bus_info = ""
                              		v4l2.device.version = 201287 (0x00031247)
                              		v4l2.device.capabilities = 69206018 (0x04200002)
                              		v4l2.device.device_caps = 2097152 (0x00200000)
                              

                              Output when my UVC camera is connected to my Linux PC;

                              seeker3@seeker3-VirtualBox:~$ gst-device-monitor-1.0 Video/Source
                              Probing devices...
                              
                              
                              Device found:
                              
                              	name  : e-CAM83_USB
                              	class : Video/Source
                              	caps  : video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)3840, height=(int)2160, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 15/1 };
                              	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                              	properties:
                              		udev-probed = true
                              		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                              		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video0
                              		device.bus = usb
                              		device.subsystem = video4linux
                              		device.vendor.id = 2560
                              		device.vendor.name = e-ConSystems
                              		device.product.id = c184
                              		device.product.name = e-CAM83_USB
                              		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                              		device.capabilities = :capture:
                              		device.api = v4l2
                              		device.path = /dev/video0
                              		v4l2.device.driver = uvcvideo
                              		v4l2.device.card = e-CAM83_USB
                              		v4l2.device.bus_info = usb-0000:00:0c.0-2
                              		v4l2.device.version = 328933 (0x000504e5)
                              		v4l2.device.capabilities = 2225078273 (0x84a00001)
                              		v4l2.device.device_caps = 69206017 (0x04200001)
                              	gst-launch-1.0 v4l2src ! ...
                              
                              
                              Device found:
                              
                              	name  : e-CAM83_USB
                              	class : Video/Source
                              	caps  : video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1;
                              	        image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                              	properties:
                              		udev-probed = true
                              		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                              		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video2
                              		device.bus = usb
                              		device.subsystem = video4linux
                              		device.vendor.id = 2560
                              		device.vendor.name = e-ConSystems
                              		device.product.id = c184
                              		device.product.name = e-CAM83_USB
                              		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                              		device.capabilities = :capture:
                              		device.api = v4l2
                              		device.path = /dev/video2
                              		v4l2.device.driver = uvcvideo
                              		v4l2.device.card = e-CAM83_USB
                              		v4l2.device.bus_info = usb-0000:00:0c.0-2
                              		v4l2.device.version = 328933 (0x000504e5)
                              		v4l2.device.capabilities = 2225078273 (0x84a00001)
                              		v4l2.device.device_caps = 69206017 (0x04200001)
                              	gst-launch-1.0 v4l2src device=/dev/video2 ! ...
                              
                              seeker3@seeker3-VirtualBox:~$ gst-device-monitor-1.0
                              Probing devices...
                              
                              
                              Device found:
                              
                              	name  : Monitor of Built-in Audio Analog Stereo
                              	class : Audio/Source
                              	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	properties:
                              		device.description = "Monitor\ of\ Built-in\ Audio\ Analog\ Stereo"
                              		device.class = monitor
                              		alsa.card = 0
                              		alsa.card_name = "Intel\ 82801AA-ICH"
                              		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                              		alsa.driver_name = snd_intel8x0
                              		device.bus_path = pci-0000:00:05.0
                              		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                              		device.bus = pci
                              		device.vendor.id = 8086
                              		device.vendor.name = "Intel\ Corporation"
                              		device.product.id = 2415
                              		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                              		device.form_factor = internal
                              		device.string = 0
                              		module-udev-detect.discovered = 1
                              		device.icon_name = audio-card-pci
                              	gst-launch-1.0 pulsesrc device=alsa_output.pci-0000_00_05.0.analog-stereo.monitor ! ...
                              
                              
                              Device found:
                              
                              	name  : Built-in Audio Analog Stereo
                              	class : Audio/Source
                              	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	properties:
                              		alsa.resolution_bits = 16
                              		device.api = alsa
                              		device.class = sound
                              		alsa.class = generic
                              		alsa.subclass = generic-mix
                              		alsa.name = "Intel\ 82801AA-ICH"
                              		alsa.id = "Intel\ ICH"
                              		alsa.subdevice = 0
                              		alsa.subdevice_name = "subdevice\ \#0"
                              		alsa.device = 0
                              		alsa.card = 0
                              		alsa.card_name = "Intel\ 82801AA-ICH"
                              		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                              		alsa.driver_name = snd_intel8x0
                              		device.bus_path = pci-0000:00:05.0
                              		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                              		device.bus = pci
                              		device.vendor.id = 8086
                              		device.vendor.name = "Intel\ Corporation"
                              		device.product.id = 2415
                              		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                              		device.form_factor = internal
                              		device.string = front:0
                              		device.buffering.buffer_size = 17632
                              		device.buffering.fragment_size = 4408
                              		device.access_mode = mmap
                              		device.profile.name = analog-stereo
                              		device.profile.description = "Analog\ Stereo"
                              		device.description = "Built-in\ Audio\ Analog\ Stereo"
                              		alsa.mixer_name = "Analog\ Devices\ AD1980"
                              		alsa.components = AC97a:41445370
                              		module-udev-detect.discovered = 1
                              		device.icon_name = audio-card-pci
                              	gst-launch-1.0 pulsesrc device=alsa_input.pci-0000_00_05.0.analog-stereo ! ...
                              
                              
                              Device found:
                              
                              	name  : Built-in Audio Analog Stereo
                              	class : Audio/Sink
                              	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                              	properties:
                              		alsa.resolution_bits = 16
                              		device.api = alsa
                              		device.class = sound
                              		alsa.class = generic
                              		alsa.subclass = generic-mix
                              		alsa.name = "Intel\ 82801AA-ICH"
                              		alsa.id = "Intel\ ICH"
                              		alsa.subdevice = 0
                              		alsa.subdevice_name = "subdevice\ \#0"
                              		alsa.device = 0
                              		alsa.card = 0
                              		alsa.card_name = "Intel\ 82801AA-ICH"
                              		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                              		alsa.driver_name = snd_intel8x0
                              		device.bus_path = pci-0000:00:05.0
                              		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                              		device.bus = pci
                              		device.vendor.id = 8086
                              		device.vendor.name = "Intel\ Corporation"
                              		device.product.id = 2415
                              		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                              		device.form_factor = internal
                              		device.string = front:0
                              		device.buffering.buffer_size = 19188
                              		device.buffering.fragment_size = 6396
                              		device.access_mode = mmap
                              		device.profile.name = analog-stereo
                              		device.profile.description = "Analog\ Stereo"
                              		device.description = "Built-in\ Audio\ Analog\ Stereo"
                              		alsa.mixer_name = "Analog\ Devices\ AD1980"
                              		alsa.components = AC97a:41445370
                              		module-udev-detect.discovered = 1
                              		device.icon_name = audio-card-pci
                              	gst-launch-1.0 ... ! pulsesink device=alsa_output.pci-0000_00_05.0.analog-stereo
                              
                              
                              Device found:
                              
                              	name  : e-CAM83_USB
                              	class : Video/Source
                              	caps  : video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)3840, height=(int)2160, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 15/1 };
                              	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                              	properties:
                              		udev-probed = true
                              		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                              		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video0
                              		device.bus = usb
                              		device.subsystem = video4linux
                              		device.vendor.id = 2560
                              		device.vendor.name = e-ConSystems
                              		device.product.id = c184
                              		device.product.name = e-CAM83_USB
                              		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                              		device.capabilities = :capture:
                              		device.api = v4l2
                              		device.path = /dev/video0
                              		v4l2.device.driver = uvcvideo
                              		v4l2.device.card = e-CAM83_USB
                              		v4l2.device.bus_info = usb-0000:00:0c.0-2
                              		v4l2.device.version = 328933 (0x000504e5)
                              		v4l2.device.capabilities = 2225078273 (0x84a00001)
                              		v4l2.device.device_caps = 69206017 (0x04200001)
                              	gst-launch-1.0 v4l2src ! ...
                              
                              
                              Device found:
                              
                              	name  : e-CAM83_USB
                              	class : Video/Source
                              	caps  : video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1;
                              	        image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                              	properties:
                              		udev-probed = true
                              		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                              		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video2
                              		device.bus = usb
                              		device.subsystem = video4linux
                              		device.vendor.id = 2560
                              		device.vendor.name = e-ConSystems
                              		device.product.id = c184
                              		device.product.name = e-CAM83_USB
                              		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                              		device.capabilities = :capture:
                              		device.api = v4l2
                              		device.path = /dev/video2
                              		v4l2.device.driver = uvcvideo
                              		v4l2.device.card = e-CAM83_USB
                              		v4l2.device.bus_info = usb-0000:00:0c.0-2
                              		v4l2.device.version = 328933 (0x000504e5)
                              		v4l2.device.capabilities = 2225078273 (0x84a00001)
                              		v4l2.device.device_caps = 69206017 (0x04200001)
                              	gst-launch-1.0 v4l2src device=/dev/video2 ! ...
                              

                              A simple video test will not work either.

                              voxl:~$ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink
                              Setting pipeline to PAUSED ...
                              Pipeline is PREROLLING ...
                              WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                              Additional debug info:
                              /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                              Failed to find a usable video sink
                              Pipeline is PREROLLED ...
                              Setting pipeline to PLAYING ...
                              New clock: GstSystemClock
                              ^Chandling interrupt.
                              Interrupt: Stopping pipeline ...
                              Execution ended after 0:00:17.998587815
                              Setting pipeline to PAUSED ...
                              Setting pipeline to READY ...
                              Setting pipeline to NULL ...
                              Freeing pipeline ...
                              

                              Are there any plugins that I could be missing?

                              KrisK 1 Reply Last reply
                              0
                              • KrisK Kris

                                @Eric-Katzfey
                                It seems as if VOXL1 is not able to connect with my UVC camera.
                                Output when UVC camera is connected to the Seeker;

                                voxl:~$ gst-device-monitor-1.0 Video/Source
                                Probing devices...
                                
                                
                                (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4152): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                No devices found!
                                voxl:~$ gst-device-monitor-1.0             
                                Probing devices...
                                
                                
                                (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                (gst-device-monitor-1.0:4157): GStreamer-CRITICAL **: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
                                
                                Device found:
                                
                                	name  : msm_fd
                                	class : Video/Sink
                                	caps  : video/x-raw, format=(string)GRAY8, width=(int)[ 320, 854 ], height=(int)[ 240, 480 ], interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string){ bt601, smpte240m, bt709, 2:4:5:2, 2:4:5:3, 1:4:7:1, 2:4:7:1, 2:4:12:8, 2:6:5:7, 2:0:0:0 };
                                	properties:
                                		device.path = /dev/video1
                                		udev-probed = false
                                		device.api = v4l2
                                		v4l2.device.driver = msm_fd
                                		v4l2.device.card = msm_fd
                                		v4l2.device.bus_info = ""
                                		v4l2.device.version = 201287 (0x00031247)
                                		v4l2.device.capabilities = 69206018 (0x04200002)
                                		v4l2.device.device_caps = 2097152 (0x00200000)
                                

                                Output when my UVC camera is connected to my Linux PC;

                                seeker3@seeker3-VirtualBox:~$ gst-device-monitor-1.0 Video/Source
                                Probing devices...
                                
                                
                                Device found:
                                
                                	name  : e-CAM83_USB
                                	class : Video/Source
                                	caps  : video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)3840, height=(int)2160, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 15/1 };
                                	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                                	properties:
                                		udev-probed = true
                                		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                                		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video0
                                		device.bus = usb
                                		device.subsystem = video4linux
                                		device.vendor.id = 2560
                                		device.vendor.name = e-ConSystems
                                		device.product.id = c184
                                		device.product.name = e-CAM83_USB
                                		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                                		device.capabilities = :capture:
                                		device.api = v4l2
                                		device.path = /dev/video0
                                		v4l2.device.driver = uvcvideo
                                		v4l2.device.card = e-CAM83_USB
                                		v4l2.device.bus_info = usb-0000:00:0c.0-2
                                		v4l2.device.version = 328933 (0x000504e5)
                                		v4l2.device.capabilities = 2225078273 (0x84a00001)
                                		v4l2.device.device_caps = 69206017 (0x04200001)
                                	gst-launch-1.0 v4l2src ! ...
                                
                                
                                Device found:
                                
                                	name  : e-CAM83_USB
                                	class : Video/Source
                                	caps  : video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1;
                                	        image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                                	properties:
                                		udev-probed = true
                                		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                                		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video2
                                		device.bus = usb
                                		device.subsystem = video4linux
                                		device.vendor.id = 2560
                                		device.vendor.name = e-ConSystems
                                		device.product.id = c184
                                		device.product.name = e-CAM83_USB
                                		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                                		device.capabilities = :capture:
                                		device.api = v4l2
                                		device.path = /dev/video2
                                		v4l2.device.driver = uvcvideo
                                		v4l2.device.card = e-CAM83_USB
                                		v4l2.device.bus_info = usb-0000:00:0c.0-2
                                		v4l2.device.version = 328933 (0x000504e5)
                                		v4l2.device.capabilities = 2225078273 (0x84a00001)
                                		v4l2.device.device_caps = 69206017 (0x04200001)
                                	gst-launch-1.0 v4l2src device=/dev/video2 ! ...
                                
                                seeker3@seeker3-VirtualBox:~$ gst-device-monitor-1.0
                                Probing devices...
                                
                                
                                Device found:
                                
                                	name  : Monitor of Built-in Audio Analog Stereo
                                	class : Audio/Source
                                	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	properties:
                                		device.description = "Monitor\ of\ Built-in\ Audio\ Analog\ Stereo"
                                		device.class = monitor
                                		alsa.card = 0
                                		alsa.card_name = "Intel\ 82801AA-ICH"
                                		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                                		alsa.driver_name = snd_intel8x0
                                		device.bus_path = pci-0000:00:05.0
                                		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                                		device.bus = pci
                                		device.vendor.id = 8086
                                		device.vendor.name = "Intel\ Corporation"
                                		device.product.id = 2415
                                		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                                		device.form_factor = internal
                                		device.string = 0
                                		module-udev-detect.discovered = 1
                                		device.icon_name = audio-card-pci
                                	gst-launch-1.0 pulsesrc device=alsa_output.pci-0000_00_05.0.analog-stereo.monitor ! ...
                                
                                
                                Device found:
                                
                                	name  : Built-in Audio Analog Stereo
                                	class : Audio/Source
                                	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	properties:
                                		alsa.resolution_bits = 16
                                		device.api = alsa
                                		device.class = sound
                                		alsa.class = generic
                                		alsa.subclass = generic-mix
                                		alsa.name = "Intel\ 82801AA-ICH"
                                		alsa.id = "Intel\ ICH"
                                		alsa.subdevice = 0
                                		alsa.subdevice_name = "subdevice\ \#0"
                                		alsa.device = 0
                                		alsa.card = 0
                                		alsa.card_name = "Intel\ 82801AA-ICH"
                                		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                                		alsa.driver_name = snd_intel8x0
                                		device.bus_path = pci-0000:00:05.0
                                		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                                		device.bus = pci
                                		device.vendor.id = 8086
                                		device.vendor.name = "Intel\ Corporation"
                                		device.product.id = 2415
                                		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                                		device.form_factor = internal
                                		device.string = front:0
                                		device.buffering.buffer_size = 17632
                                		device.buffering.fragment_size = 4408
                                		device.access_mode = mmap
                                		device.profile.name = analog-stereo
                                		device.profile.description = "Analog\ Stereo"
                                		device.description = "Built-in\ Audio\ Analog\ Stereo"
                                		alsa.mixer_name = "Analog\ Devices\ AD1980"
                                		alsa.components = AC97a:41445370
                                		module-udev-detect.discovered = 1
                                		device.icon_name = audio-card-pci
                                	gst-launch-1.0 pulsesrc device=alsa_input.pci-0000_00_05.0.analog-stereo ! ...
                                
                                
                                Device found:
                                
                                	name  : Built-in Audio Analog Stereo
                                	class : Audio/Sink
                                	caps  : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	        audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
                                	properties:
                                		alsa.resolution_bits = 16
                                		device.api = alsa
                                		device.class = sound
                                		alsa.class = generic
                                		alsa.subclass = generic-mix
                                		alsa.name = "Intel\ 82801AA-ICH"
                                		alsa.id = "Intel\ ICH"
                                		alsa.subdevice = 0
                                		alsa.subdevice_name = "subdevice\ \#0"
                                		alsa.device = 0
                                		alsa.card = 0
                                		alsa.card_name = "Intel\ 82801AA-ICH"
                                		alsa.long_card_name = "Intel\ 82801AA-ICH\ with\ AD1980\ at\ irq\ 21"
                                		alsa.driver_name = snd_intel8x0
                                		device.bus_path = pci-0000:00:05.0
                                		sysfs.path = /devices/pci0000:00/0000:00:05.0/sound/card0
                                		device.bus = pci
                                		device.vendor.id = 8086
                                		device.vendor.name = "Intel\ Corporation"
                                		device.product.id = 2415
                                		device.product.name = "82801AA\ AC\'97\ Audio\ Controller"
                                		device.form_factor = internal
                                		device.string = front:0
                                		device.buffering.buffer_size = 19188
                                		device.buffering.fragment_size = 6396
                                		device.access_mode = mmap
                                		device.profile.name = analog-stereo
                                		device.profile.description = "Analog\ Stereo"
                                		device.description = "Built-in\ Audio\ Analog\ Stereo"
                                		alsa.mixer_name = "Analog\ Devices\ AD1980"
                                		alsa.components = AC97a:41445370
                                		module-udev-detect.discovered = 1
                                		device.icon_name = audio-card-pci
                                	gst-launch-1.0 ... ! pulsesink device=alsa_output.pci-0000_00_05.0.analog-stereo
                                
                                
                                Device found:
                                
                                	name  : e-CAM83_USB
                                	class : Video/Source
                                	caps  : video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)3840, height=(int)2160, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 15/1 };
                                	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                                	properties:
                                		udev-probed = true
                                		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                                		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video0
                                		device.bus = usb
                                		device.subsystem = video4linux
                                		device.vendor.id = 2560
                                		device.vendor.name = e-ConSystems
                                		device.product.id = c184
                                		device.product.name = e-CAM83_USB
                                		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                                		device.capabilities = :capture:
                                		device.api = v4l2
                                		device.path = /dev/video0
                                		v4l2.device.driver = uvcvideo
                                		v4l2.device.card = e-CAM83_USB
                                		v4l2.device.bus_info = usb-0000:00:0c.0-2
                                		v4l2.device.version = 328933 (0x000504e5)
                                		v4l2.device.capabilities = 2225078273 (0x84a00001)
                                		v4l2.device.device_caps = 69206017 (0x04200001)
                                	gst-launch-1.0 v4l2src ! ...
                                
                                
                                Device found:
                                
                                	name  : e-CAM83_USB
                                	class : Video/Source
                                	caps  : video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1;
                                	        image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1;
                                	properties:
                                		udev-probed = true
                                		device.bus_path = pci-0000:00:0c.0-usb-0:2:1.0
                                		sysfs.path = /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2/1-2:1.0/video4linux/video2
                                		device.bus = usb
                                		device.subsystem = video4linux
                                		device.vendor.id = 2560
                                		device.vendor.name = e-ConSystems
                                		device.product.id = c184
                                		device.product.name = e-CAM83_USB
                                		device.serial = e-ConSystems_e-CAM83_USB_00.00.01
                                		device.capabilities = :capture:
                                		device.api = v4l2
                                		device.path = /dev/video2
                                		v4l2.device.driver = uvcvideo
                                		v4l2.device.card = e-CAM83_USB
                                		v4l2.device.bus_info = usb-0000:00:0c.0-2
                                		v4l2.device.version = 328933 (0x000504e5)
                                		v4l2.device.capabilities = 2225078273 (0x84a00001)
                                		v4l2.device.device_caps = 69206017 (0x04200001)
                                	gst-launch-1.0 v4l2src device=/dev/video2 ! ...
                                

                                A simple video test will not work either.

                                voxl:~$ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink
                                Setting pipeline to PAUSED ...
                                Pipeline is PREROLLING ...
                                WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                Failed to find a usable video sink
                                Pipeline is PREROLLED ...
                                Setting pipeline to PLAYING ...
                                New clock: GstSystemClock
                                ^Chandling interrupt.
                                Interrupt: Stopping pipeline ...
                                Execution ended after 0:00:17.998587815
                                Setting pipeline to PAUSED ...
                                Setting pipeline to READY ...
                                Setting pipeline to NULL ...
                                Freeing pipeline ...
                                

                                Are there any plugins that I could be missing?

                                KrisK Offline
                                KrisK Offline
                                Kris
                                Regular
                                wrote on last edited by Kris
                                #18

                                Keeps failing to find a usable video sink.

                                voxl:~$ show-video-device-info.sh
                                /dev/video2: e-CAM83_USB 2560:c184
                                /dev/video3: e-CAM83_USB 2560:c184
                                voxl:~$ gst-launch-1.0 v4l2src device=/dev/video3 ! videoconvert ! autovideosink
                                Setting pipeline to PAUSED ...
                                ERROR: Pipeline doesn't want to pause.
                                WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                Failed to find a usable video sink
                                ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video3' for reading and writing.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                system error: Device or resource busy
                                Setting pipeline to NULL ...
                                Freeing pipeline ...
                                voxl:~$ gst-launch-1.0 v4l2src device=/dev/video2 ! videoconvert ! autovideosink
                                Setting pipeline to PAUSED ...
                                ERROR: Pipeline doesn't want to pause.
                                WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                Failed to find a usable video sink
                                ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video2' for reading and writing.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                system error: Device or resource busy
                                Setting pipeline to NULL ...
                                Freeing pipeline ...
                                voxl:~$ 
                                

                                Output when debug command is used.

                                voxl:~$ GST_DEBUG=3 gst-launch-1.0 v4l2src device=/dev/video3 ! videoconvert ! autovideosink
                                Setting pipeline to PAUSED ...
                                0:00:00.229741613  4689    0xdf500 WARN              autodetect gstautodetect.c:347:gst_auto_detect_find_best:<autovideosink0> warning: Failed to find a usable video sink
                                0:00:00.277135238  4689    0xdf500 WARN                    v4l2 v4l2_calls.c:625:gst_v4l2_open:<v4l2src0> error: Could not open device '/dev/video3' for reading and writing.
                                0:00:00.277213207  4689    0xdf500 WARN                    v4l2 v4l2_calls.c:625:gst_v4l2_open:<v4l2src0> error: system error: Device or resource busy
                                ERROR: Pipeline doesn't want to pause.
                                WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                Failed to find a usable video sink
                                ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video3' for reading and writing.
                                Additional debug info:
                                /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                system error: Device or resource busy
                                Setting pipeline to NULL ...
                                Freeing pipeline ...
                                
                                Eric KatzfeyE 1 Reply Last reply
                                0
                                • tomT Offline
                                  tomT Offline
                                  tom
                                  admin
                                  wrote on last edited by
                                  #19

                                  @Kris You can't use autovideosink on VOXL because it doesn't have a display

                                  KrisK 1 Reply Last reply
                                  0
                                  • KrisK Kris

                                    Keeps failing to find a usable video sink.

                                    voxl:~$ show-video-device-info.sh
                                    /dev/video2: e-CAM83_USB 2560:c184
                                    /dev/video3: e-CAM83_USB 2560:c184
                                    voxl:~$ gst-launch-1.0 v4l2src device=/dev/video3 ! videoconvert ! autovideosink
                                    Setting pipeline to PAUSED ...
                                    ERROR: Pipeline doesn't want to pause.
                                    WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                    Failed to find a usable video sink
                                    ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video3' for reading and writing.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                    system error: Device or resource busy
                                    Setting pipeline to NULL ...
                                    Freeing pipeline ...
                                    voxl:~$ gst-launch-1.0 v4l2src device=/dev/video2 ! videoconvert ! autovideosink
                                    Setting pipeline to PAUSED ...
                                    ERROR: Pipeline doesn't want to pause.
                                    WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                    Failed to find a usable video sink
                                    ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video2' for reading and writing.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                    system error: Device or resource busy
                                    Setting pipeline to NULL ...
                                    Freeing pipeline ...
                                    voxl:~$ 
                                    

                                    Output when debug command is used.

                                    voxl:~$ GST_DEBUG=3 gst-launch-1.0 v4l2src device=/dev/video3 ! videoconvert ! autovideosink
                                    Setting pipeline to PAUSED ...
                                    0:00:00.229741613  4689    0xdf500 WARN              autodetect gstautodetect.c:347:gst_auto_detect_find_best:<autovideosink0> warning: Failed to find a usable video sink
                                    0:00:00.277135238  4689    0xdf500 WARN                    v4l2 v4l2_calls.c:625:gst_v4l2_open:<v4l2src0> error: Could not open device '/dev/video3' for reading and writing.
                                    0:00:00.277213207  4689    0xdf500 WARN                    v4l2 v4l2_calls.c:625:gst_v4l2_open:<v4l2src0> error: system error: Device or resource busy
                                    ERROR: Pipeline doesn't want to pause.
                                    WARNING: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0: Resource not found.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/gst/autodetect/gstautodetect.c(347): gst_auto_detect_find_best (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0:
                                    Failed to find a usable video sink
                                    ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not open device '/dev/video3' for reading and writing.
                                    Additional debug info:
                                    /opt/workspace/build/apq8096-le-1-0-1_ap_standard_oem.git/apps_proc/poky/build/tmp-glibc/work/armv7a-vfp-neon-oemllib32-linux-gnueabi/lib32-gstreamer1.0-plugins-good/1.10.4-r0/gst-plugins-good-1.10.4/sys/v4l2/v4l2_calls.c(625): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
                                    system error: Device or resource busy
                                    Setting pipeline to NULL ...
                                    Freeing pipeline ...
                                    
                                    Eric KatzfeyE Offline
                                    Eric KatzfeyE Offline
                                    Eric Katzfey
                                    ModalAI Team
                                    wrote on last edited by
                                    #20

                                    @Kris Maybe try fakesink instead?

                                    KrisK 2 Replies Last reply
                                    0
                                    • Eric KatzfeyE Eric Katzfey

                                      @Kris Maybe try fakesink instead?

                                      KrisK Offline
                                      KrisK Offline
                                      Kris
                                      Regular
                                      wrote on last edited by Kris
                                      #21

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

                                      Eric KatzfeyE 1 Reply Last reply
                                      0
                                      • Eric KatzfeyE Eric Katzfey

                                        @Kris Maybe try fakesink instead?

                                        KrisK Offline
                                        KrisK Offline
                                        Kris
                                        Regular
                                        wrote on last edited by Kris
                                        #22

                                        @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
                                        0
                                        • tomT tom

                                          @Kris You can't use autovideosink on VOXL because it doesn't have a display

                                          KrisK Offline
                                          KrisK Offline
                                          Kris
                                          Regular
                                          wrote on last edited by
                                          #23

                                          @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
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