Failed to connect to camera

[Shorlaks]

Describe the bug Aravis finds the camera but unable to connect. I ran arv-camera-test with debug option.

pi@raspberrypi:~/aravis-0.8.20/build/src $ ./arv-camera-test-0.8 --debug=all
Looking for the first available camera
[16:05:40.361] 🅸 interface> Found 0 USB3Vision device (among 6 USB devices)
[16:05:40.363] 🅸 interface> [GvDiscoverSocket::new] Add interface 127.0.0.1 (127.0.0.1)
[16:05:40.364] 🅸 interface> [GvDiscoverSocket::new] Add interface 10.0.0.64 (10.255.255.255)
[16:05:40.369] 🅸 interface> [GvInterface::discovery] Device 'GigECamSim-6b:6e:05:05:22:c1' found (interface 10.0.0.64) user_id '' - MAC '6b:6e:05:05:22:c1'
[16:05:40.370] 🅸 device> [GvDevice::new] Interface address = 10.0.0.64
[16:05:40.370] 🅸 device> [GvDevice::new] Device address = 10.0.0.22
[16:05:40.871] 🆆 device> [GvDevice::read_memory] Ack reception timeout
[16:05:40.872] 🆆 device> [GvDevice::read_memory] Ack reception timeout
[16:05:40.873] 🅸 device> [GvDevice::load_genicam] xml url = 'Local:gigecamsim.xml; F000; 2B39' at 0x200
[16:05:40.873] 🅸 device> [GvDevice::load_genicam] Xml address = 0xf000 - size = 0x2b39 - gigecamsim.xml
[16:05:40.891] 🅸 genicam> [Gc::set_default_node_data] Add 'DeviceVendorName'
[16:05:40.892] 🅸 genicam> [Gc::set_default_node_data] Add 'DeviceModelName'
[16:05:40.892] 🅸 genicam> [Gc::set_default_node_data] Add 'DeviceVersion'
[16:05:40.893] 🅸 genicam> [Gc::set_default_node_data] Add 'DeviceManufacturerInfo'
[16:05:40.894] 🅸 genicam> [Gc::set_default_node_data] Add 'DeviceID'
[16:05:40.894] 🅸 genicam> [Gc::set_default_node_data] Add 'GevStreamChannelCount'
[16:05:40.895] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCPHostPort'
[16:05:40.896] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCPSDoNotFragment'
[16:05:40.897] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCPSBigEndian'
[16:05:40.898] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCDA'
[16:05:40.901] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCSP'
[16:05:40.902] 🅸 genicam> [Gc::set_default_node_data] Add 'GevSCPAddrCalc'
[16:05:41.403] 🆆 device> [GvDevice::write_register] Ack reception timeout
[16:05:41.403] 🆆 device> [GvDevice::write_register] Ack reception timeout
[16:05:41.406] 🆆 device> [GvDevice::take_control] Can't get control access
[16:05:41.407] 🅸 device> [GvDevice::new] Device endianness = little
[16:05:41.407] 🅸 device> [GvDevice::new] Packet resend     = no
[16:05:41.407] 🅸 device> [GvDevice::new] Write memory      = yes
[16:05:41.407] 🅸 device> [GvDevice::new] Legacy endianness handling = yes
Failed to read the current device configuration: GigEVision read_memory error (invalid-access)
[16:05:41.409] 🆆 device> [GvDevice::leave_control] Can't relinquish control access

Platform description:

• Aravis version 8.20
• OS: Raspbian 64bit, Ubuntu 20.04 64bit
• Hardware: RaspberryPi4

What seems to be the problem?

Thanks, Shorlak

[EmmanuelP]

Hi,

Failed to read the current device configuration: GigEVision read_memory error (invalid-access)

Aravis tried to read a feature not available on your device. Could you rerun arv-camera-test with --debug=3 ?

Does the viewer work ?

[Shorlaks]

Hi, --debug=3 throws Invalid debug selection.

The viewer recognizes the camera, but when I hit play nothing happens.

[EmmanuelP]

--debug=3 throws Invalid debug selection.

Sorry, it is --debug=all:3

[Shorlaks]

Hi @EmmanuelP Here is the log, it's quite long so I upload it as a .txt file: log.txt

Thanks, Shorlaks

[EmmanuelP]

I have pushed a path to aravis main branch that should help to identify the missing feature. Could you try the current main branch, and attach a new log.txt file ?

Thanks.

[Shorlaks]

Hi @EmmanuelP I've built the project from main branch, here is the log file: log.txt

correct me if I'm wrong but it seems like the GeniCam protocol is not implanted properly on the camera and is not responding to the discovery command. also this time I can see the camera in the arv-viewer but the play button is disabled. On the previous build I was able to hit play but nothing happened.

[adrianca88]

Hello,

We have the same problem. However, it is not a problem with an invalid command, because it fails only sometimes.

It works if we do a small change into _send_cmd_and_receive_ack function to retry that command for io_data->gvcp_n_retries.

Actually the code only retries it once because of:

• packet_type == ARV_GVCP_PACKET_TYPE_ERROR
• expected_answer == TRUE
• command_error != ARV_GVCP_ERROR_NONE

Here you can see a capture with debug info (with our change applied):

Do you know why are we getting this problem? We have review every camera and network parameters and it seems to be ok.

Can we create a pull request with this modification or could be some collateral issues with that change?

Thanks so much in advance.

[EmmanuelP]

Hi Adrian,

Can we create a pull request with this modification or could be some collateral issues with that change?

Please go ahead. We will discuss about your patch there.

[adrianca88]

done!

https://github.com/AravisProject/aravis/pull/637