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    uvc_get_stream_ctrl_format_size failed

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    • K
      Kris @Kris
      last edited by 28 Feb 2023, 07:41

      I had also tried “decimator”: 1,
      for the UVC generic in the streamer.conf file, and that did not work either.

      {
          "conf-version":"1.3",
          "configuration": "hires",
          "uvc-generic": {
              "input": {
                  "interface": "mpa",
                  "mpa-camera": "uvc" },
              "output": {
                  "stream": {
                      "rotation": 0,
                      "width": 640,
                      "height": 480,
                      "decimator": 1,
                      "bitrate": 1000000 } }
      
      K 1 Reply Last reply 28 Feb 2023, 07:44 Reply Quote 0
      • K
        Kris @Kris
        last edited by 28 Feb 2023, 07:44

        The Frame size mismatch 614400 12441600 is always the same.

        1 Reply Last reply Reply Quote 0
        • T
          tom admin
          last edited by 28 Feb 2023, 16:28

          @Kris You're on a pretty old platform release, I would start by updating to 0.9: https://developer.modalai.com/asset/view/115

          K 2 Replies Last reply 1 Mar 2023, 00:57 Reply Quote 0
          • K
            Kris @tom
            last edited by 1 Mar 2023, 00:57

            @tom
            Ok, thank you. I will try that first.

            1 Reply Last reply Reply Quote 0
            • K
              Kris @tom
              last edited by 7 Mar 2023, 00:49

              @tom
              I've updated my platform to 0.9 and I am still unable to successfully open the uvc camera.

              voxl:~$ lsusb
              Bus 001 Device 008: ID 2560:c184  
              Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
              Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
              Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
              
              voxl:~$ voxl-uvc-server -p c184
              uvc_open failed
              voxl:~$ voxl-uvc-server -v 2560
              uvc_open failed
              voxl:~$ voxl-uvc-server -d     
              Enabling debug messages
              voxl-uvc-server starting
              Image resolution 640x480, 30 fps chosen
              UVC initialized
              Device found
              uvc_open failed
              UVC exited
              voxl-uvc-server ending
              
              1 Reply Last reply Reply Quote 0
              • T
                tom admin
                last edited by 7 Mar 2023, 00:55

                @Kris Are you sure that your UVC camera is 640x480 resolution?

                K 2 Replies Last reply 7 Mar 2023, 01:03 Reply Quote 0
                • K
                  Kris @tom
                  last edited by 7 Mar 2023, 01:03

                  @tom
                  Yes, in the debug messages, it says that it is 640x480.
                  Is there another way to check the resolution?

                  1 Reply Last reply Reply Quote 0
                  • T
                    tom admin
                    last edited by 7 Mar 2023, 01:10

                    @Kris Yeah that's just the default that voxl-uvc-server uses if not explicitly specified otherwise with the -r flag.

                    You can use show-video-device-info.sh and that may provide some clues.

                    What is the part number or make and model of the UVC camera you're using? It's possible it's supported image formats don't match up with those supported by voxl-uvc-server

                    K 4 Replies Last reply 7 Mar 2023, 01:18 Reply Quote 0
                    • K
                      Kris @tom
                      last edited by 7 Mar 2023, 01:18

                      @tom Ok, Thank you I will try that now.
                      Here are some details of my UVC 2.0 camera.
                      e-CAM83.png

                      1 Reply Last reply Reply Quote 0
                      • K
                        Kris @tom
                        last edited by 7 Mar 2023, 01:21

                        @tom
                        This is all the information I get from show-video-device-info.sh

                        voxl:~$ show-video-device-info.sh
                        /dev/video2: e-CAM83_USB 2560:c184
                        /dev/video3: e-CAM83_USB 2560:c184
                        
                        1 Reply Last reply Reply Quote 0
                        • K
                          Kris
                          last edited by Kris 7 Mar 2023, 01:27 7 Mar 2023, 01:23

                          Is there any chance I can get 1920 x 1080 @30 fps using h264 in the voxl-uvc-server?
                          Or is 640 x 480 the only option in the voxl-uvc-server?

                          1 Reply Last reply Reply Quote 0
                          • K
                            Kris
                            last edited by 7 Mar 2023, 01:27

                            The rest of the information about my current uvc camera is here.

                            1 Reply Last reply Reply Quote 0
                            • K
                              Kris
                              last edited by 7 Mar 2023, 01:41

                              Additional information;
                              e-CAM83-1.png
                              e-CAM83-2.png

                              1 Reply Last reply Reply Quote 0
                              • K
                                Kris @tom
                                last edited by 7 Mar 2023, 01:49

                                @tom
                                I gave this a try, but no luck.

                                voxl:~$ voxl-uvc-server -d -r 1920x1080 -f 30
                                Enabling debug messages
                                voxl-uvc-server starting
                                Image resolution 1920x1080, 30 fps chosen
                                UVC initialized
                                Device found
                                uvc_open failed
                                UVC exited
                                voxl-uvc-server ending
                                
                                1 Reply Last reply Reply Quote 0
                                • K
                                  Kris @tom
                                  last edited by 7 Mar 2023, 03:29

                                  @tom

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

                                  /dev/video2: is h264
                                  /dev/video3: is MJPG & YUY2

                                  1 Reply Last reply Reply Quote 0
                                  • K
                                    Kris
                                    last edited by 7 Mar 2023, 03:35

                                    voxl:~$ voxl-uvc-server -l
                                    *** START DEVICE LIST ***
                                    
                                    Found device 0
                                    
                                    Got device descriptor for 2560:c184 (null)
                                    
                                    Found device 2560:c184
                                    
                                    uvc_open failed, Return code: I/O error (-1)
                                    
                                    Found device 0
                                    
                                    Got device descriptor for 2560:c184 (null)
                                    
                                    Found device 2560:c184
                                    
                                    uvc_open failed, Return code: No such device (-4)
                                    
                                    Found device 0
                                    
                                    Got device descriptor for 2560:c184 (null)
                                    
                                    uvc_find_device failed, Return code: No such device (-4)
                                    
                                    Got device descriptor for 2560:c184 (null)
                                    
                                    Found device 2560:c184
                                    
                                    DEVICE CONFIGURATION (2560:c184/00.00.01) ---
                                    Status: idle
                                    VideoControl:
                                    	bcdUVC: 0x0100
                                    VideoStreaming(1):
                                    	bEndpointAddress: 129
                                    	Formats:
                                    	FrameFormat(1)
                                    		  bits per pixel: 16
                                    		  GUID: 4832363400001000800000aa00389b71 (H264)
                                    		  default frame: 1
                                    		  aspect ratio: 0x0
                                    		  interlace flags: 00
                                    		  copy protect: 00
                                    			FrameDescriptor(1)
                                    			  capabilities: 00
                                    			  size: 3840x2160
                                    			  bit rate: 165888000-995328000
                                    			  max frame size: 0
                                    			  default interval: 1/15
                                    			  interval[0]: 1/30
                                    			  interval[1]: 1/15
                                    			FrameDescriptor(2)
                                    			  capabilities: 00
                                    			  size: 1920x1080
                                    			  bit rate: 165888000-995328000
                                    			  max frame size: 0
                                    			  default interval: 1/30
                                    			  interval[0]: 1/30
                                    VideoStreaming(2):
                                    	bEndpointAddress: 136
                                    	Formats:
                                    	UncompressedFormat(1)
                                    		  bits per pixel: 16
                                    		  GUID: 5955593200001000800000aa00389b71 (YUY2)
                                    		  default frame: 1
                                    		  aspect ratio: 0x0
                                    		  interlace flags: 00
                                    		  copy protect: 00
                                    			FrameDescriptor(1)
                                    			  capabilities: 00
                                    			  size: 640x480
                                    			  bit rate: 24576000-147456000
                                    			  max frame size: 614400
                                    			  default interval: 1/15
                                    			  interval[0]: 1/15
                                    	MJPEGFormat(2)
                                    		  bits per pixel: 0
                                    		  GUID: 4d4a5047000000000000000000000000 (MJPG)
                                    		  default frame: 1
                                    		  aspect ratio: 0x0
                                    		  interlace flags: 00
                                    		  copy protect: 00
                                    			FrameDescriptor(1)
                                    			  capabilities: 00
                                    			  size: 1920x1080
                                    			  bit rate: 24576000-147456000
                                    			  max frame size: 614400
                                    			  default interval: 1/30
                                    			  interval[0]: 1/30
                                    END DEVICE CONFIGURATION
                                    
                                    *** END DEVICE LIST ***
                                    
                                    1 Reply Last reply Reply Quote 0
                                    • K
                                      Kris @tom
                                      last edited by 7 Mar 2023, 07:22

                                      @tom
                                      May I ask what image formats the voxl-uvc-serversupports?

                                      1 Reply Last reply Reply Quote 0
                                      • K
                                        Kris
                                        last edited by 7 Mar 2023, 10:25

                                        I have a feeling that maybe the problem is deriving from my camera’s GUID Format.
                                        Does the voxl-uvc-server accept GUID: 4832363400001000800000aa00389b71
                                        for h264 format?
                                        How would I go about correcting the guidFormat to match up with the voxl-uvc-server?

                                        1 Reply Last reply Reply Quote 0
                                        • T
                                          tom admin
                                          last edited by 7 Mar 2023, 18:39

                                          @Kris You can see supported format info here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server/-/blob/master/src/main.c#L64

                                          Another thing to try out is using gstreamer instead of voxl-uvc-server + voxl-streamer with a pipeline similar to the following:

                                          gst-launch-1.0 v4l2src device=/dev/video2 ! video/x-raw,format=YUY2 ! videoconvert ! x264enc speed-preset=ultrafast tune=zerolatency ! rtph264pay name=pay0 ! udpsink host=192.168.1.97 port=8554

                                          The pipeline may need to be tweaked slightly but it's one I've used before for other UVC cameras that voxl-uvc-server was unhappy with

                                          K 4 Replies Last reply 7 Mar 2023, 23:08 Reply Quote 0
                                          • K
                                            Kris @tom
                                            last edited by 7 Mar 2023, 23:08

                                            @tom
                                            Thank you, I will give this a try.
                                            I am trying to use H.264 on this camera.
                                            This is the second UVC camera that I’ve purchased because I am trying to log the frames from voxl-logger. From what I understand, H.264 output is the format that can do this.
                                            Is there a way to call for only the /dev/video2 to start with the voxl-uvc-server or gstreamer?
                                            Does the voxl-uvc-server accept h264 1920x1080 @30fps?

                                            1 Reply Last reply Reply Quote 0
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