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    VOXL camera configuration

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    • KrisK
      Kris @Chad Sweet
      last edited by

      @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 Reply Quote 0
      • KrisK
        Kris @Chad Sweet
        last edited by Kris

        @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 Reply Quote 0
        • Chad SweetC
          Chad Sweet ModalAI Team
          last edited by

          This post is deleted!
          1 Reply Last reply Reply Quote 0
          • Chad SweetC
            Chad Sweet ModalAI Team
            last edited by

            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 Reply Quote 0
            • KrisK
              Kris @Chad Sweet
              last edited by

              @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 Reply Quote 0
              • Chad SweetC
                Chad Sweet ModalAI Team
                last edited by

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

                Chad SweetC 1 Reply Last reply Reply Quote 0
                • Chad SweetC
                  Chad Sweet ModalAI Team @Chad Sweet
                  last edited by

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

                  KrisK 2 Replies Last reply Reply Quote 0
                  • KrisK
                    Kris @Chad Sweet
                    last edited by

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

                        @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 Reply Quote 0
                        • KrisK
                          Kris @Eric Katzfey
                          last edited by

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

                          1 Reply Last reply Reply Quote 0
                          • KrisK
                            Kris @Eric Katzfey
                            last edited by 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 1 Reply Last reply Reply Quote 0
                            • KrisK
                              Kris @Kris
                              last edited by 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 1 Reply Last reply Reply Quote 0
                              • tomT
                                tom admin
                                last edited by

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

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

                                  @Kris Maybe try fakesink instead?

                                  KrisK 2 Replies Last reply Reply Quote 0
                                  • KrisK
                                    Kris @Eric Katzfey
                                    last edited by Kris

                                    @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 Reply Quote 0
                                    • KrisK
                                      Kris @Eric Katzfey
                                      last edited by Kris

                                      @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
                                      • KrisK
                                        Kris @tom
                                        last edited by

                                        @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
                                        • KrisK
                                          Kris
                                          last edited by

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

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

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

                                            KrisK 2 Replies Last reply Reply Quote 0
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