ModalAI Forum

Thank you both

Hi Modalai Team,

I am using a UVC camera and following the UVC streaming guide with VOXL version 3.2.0 and do not have ffmpeg installed by default and the link to download the ffmpeg ipk is broken. What is the recommended path forward for using a UVC camera? Should I use voxl-docker-ffmpeg, build voxl-ffmpeg, or something else?

Thanks

Also here is my current voxl-version:

--------------------------------------------------------------------------------
system-image:    ModalAI 3.2.0 BUILDER: ekatzfey BUILD_TIME: 2021-02-05_19:54
kernel:          #1 SMP PREEMPT Fri Feb 5 20:03:22 UTC 2021 3.18.71-perf
factory-bundle:  1.0.1 (Yocto installation)
--------------------------------------------------------------------------------
architecture:    aarch64
processor:       apq8096
os:              GNU/Linux
--------------------------------------------------------------------------------
voxl-suite:
Package: voxl-suite
Version: 0.3.4
Depends: voxl-utils (>= 0.6.0), libmodal_json (>= 0.3.4), libmodal_pipe (>= 1.7.8), librc_math (>= 1.1.4), libvoxl_io (>= 0.5.4), mavlink-camera-manager (>= 0.0.1), opencv (>= 4.5.1), openmp (>= 10.0.1), voxl-camera-server (>= 0.5.6), voxl-dfs-server (>= 0.0.7), voxl-docker-support (>= 1.1.1), voxl-gphoto2 (>= 0.0.5), voxl-hal3-tof-cam-ros (>= 0.0.5), voxl-imu-server (>= 0.7.8), voxl-modem (>= 0.11.0), voxl-mpa-tflite-server (>= 0.0.2), voxl-mpa-tools (>= 0.1.6), voxl-nodes (>= 0.1.3), voxl-qvio-server (>= 0.2.1), voxl-rtsp (>= 1.0.3), voxl-streamer (>= 0.2.1), voxl-vision-px4 (>= 0.8.1), voxl-vpn (>= 0.0.3)
Status: install user installed
Section: base
Architecture: all
Maintainer: james@modalai.com
MD5Sum: e1e5bf1a125affe5036099f6ce895bed
Size: 1818
Filename: voxl-suite_0.3.4.ipk
Description: meta-package for voxl-suite stable release
Installed-Time: 13238

Package: voxl-suite
Version: 0.2.0
Depends: docker, imu_app (= 0.0.6), libvoxl_io (= 0.5.2), voxl-cam-manager (= 0.2.2), voxl-docker-support (= 1.1.1), voxl-hal3-tof-cam-ros (= 0.0.2), voxl-modem (= 0.10.0), voxl-nodes (= 0.0.8), voxl-rtsp (= 1.0.2), voxl-utils (= 0.5.2), voxl-vision-px4 (= 0.6.8), voxl_imu (= 0.0.4), voxl-time-sync (= 0.0.1), voxl-vpn (= 0.0.2), librc_math (= 1.1.2), libmodal_pipe (= 1.2.2), modalai-vl (= 0.1.3)
Status: unknown ok not-installed
Section: base
Architecture: armv7a
Maintainer: james@modalai.com
MD5Sum: af706cd3c1ea59f274f2ed9b93141f1d
Size: 870
Filename: voxl-suite_0.2.0.ipk
Description: meta-package to install all of the voxl-suite

--------------------------------------------------------------------------------

Hi @James-Strawson,

Thanks for the tip I will try it out!

@Eric-Katzfey Thanks for the explanation, I was not starting the voxl-camera-server before.

When I started the voxl-camera-server, I had my camera configuration include the tracking camera which stopped the voxl-camera-server from starting correctly.

Once I changed my camera configuration with voxl-configure-cameras to "hires only" I was able to start the camera server and then start the voxl-streamer as well.

Hi @Eric-Katzfey,
Thanks for the tip, I installed the 3.2.0-0.3.4-b release and still have the same issue. Also I am not sure what to modify in the voxl-streamer.conf file. I modified line 6 from:

"mpa-camera": "hires_preview" },

to:

"mpa-camera": "hires/preview" },

but I think I am missing something as I am getting the same error message.

Thanks,
Dean

Hey Modalai Team,

I'm trying to use voxl_cam_ros with an M0025 (IMX214) and am not getting good image quality out. Here is an example:

I am able to use voxl-rtsp with a decent output:

I am not getting any terrible errors when launching the ROS node except for

ERROR: The requested frame_id(0) does not exist in the queue.
[ERROR] [20204.856915384]: GetImageData() Unable to get Frame data for id: 0 rc: -2

which is harmless according to this post.

my voxl-version is as follows:

yocto:/# voxl-version 
cat: /etc/modalai/voxl-software-bundle-version.txt: No such file or directory
--------------------------------------------------------------------------------
system-image:    ModalAI 3.2.0 BUILDER: ekatzfey BUILD_TIME: 2021-02-05_19:54
kernel:          #1 SMP PREEMPT Fri Feb 5 20:03:22 UTC 2021 3.18.71-perf
factory-bundle:  1.0.1 (Yocto installation)
--------------------------------------------------------------------------------
architecture:    aarch64
processor:       apq8096
os:              GNU/Linux
--------------------------------------------------------------------------------
voxl-suite:
Package: voxl-suite
Version: 0.3.4
Depends: voxl-utils (>= 0.6.0), libmodal_json (>= 0.3.4), libmodal_pipe (>= 1.7.8), librc_math (>= 1.1.4), libvoxl_io (>= 0.5.4), mavlink-camera-manager (>= 0.0.1), opencv (>= 4.5.1), openmp (>= 10.0.1), voxl-camera-server (>= 0.5.6), voxl-dfs-server (>= 0.0.7), voxl-docker-support (>= 1.1.1), voxl-gphoto2 (>= 0.0.5), voxl-hal3-tof-cam-ros (>= 0.0.5), voxl-imu-server (>= 0.7.8), voxl-modem (>= 0.11.0), voxl-mpa-tflite-server (>= 0.0.2), voxl-mpa-tools (>= 0.1.6), voxl-nodes (>= 0.1.3), voxl-qvio-server (>= 0.2.1), voxl-rtsp (>= 1.0.3), voxl-streamer (>= 0.2.1), voxl-vision-px4 (>= 0.8.1), voxl-vpn (>= 0.0.3)
Status: install user installed
Section: base
Architecture: all
Maintainer: james@modalai.com
MD5Sum: e1e5bf1a125affe5036099f6ce895bed
Size: 1818
Filename: voxl-suite_0.3.4.ipk
Description: meta-package for voxl-suite stable release
Installed-Time: 13238

Package: voxl-suite
Version: 0.2.0
Depends: docker, imu_app (= 0.0.6), libvoxl_io (= 0.5.2), voxl-cam-manager (= 0.2.2), voxl-docker-support (= 1.1.1), voxl-hal3-tof-cam-ros (= 0.0.2), voxl-modem (= 0.10.0), voxl-nodes (= 0.0.8), voxl-rtsp (= 1.0.2), voxl-utils (= 0.5.2), voxl-vision-px4 (= 0.6.8), voxl_imu (= 0.0.4), voxl-time-sync (= 0.0.1), voxl-vpn (= 0.0.2), librc_math (= 1.1.2), libmodal_pipe (= 1.2.2), modalai-vl (= 0.1.3)
Status: unknown ok not-installed
Section: base
Architecture: armv7a
Maintainer: james@modalai.com
MD5Sum: af706cd3c1ea59f274f2ed9b93141f1d
Size: 870
Filename: voxl-suite_0.2.0.ipk
Description: meta-package to install all of the voxl-suite

--------------------------------------------------------------------------------

Any tips would be greatly appreciated.

Thanks,
Dean

Hi @Lynn-Koudsi and @Eric-Katzfey,

I am having the same issue as you Lynn where I am getting the error:

yocto:/# voxl-streamer
Using configuration file /etc/modalai/voxl-streamer.conf
closing FDs for client channel 0
ERROR: Couldn't open MPA pipe /run/mpa/hires/preview/

Where is the script where you changed /run/mpa/hires_preview?

Thanks,

Dean