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    VOXL camera configuration

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    • 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?

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                          • 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?

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                            • 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
                              • KrisK
                                Kris @Eric Katzfey
                                last edited by

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

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

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

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

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

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

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

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

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

                                        Connected to PC and viewing video;

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

                                        Connected to PC and recording to PC;

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

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

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

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