Build process doesn't seem to work. about harmonizeproject HOT 13 CLOSED

I have python 3.8.5 installed
And it's Ubuntu 20.04.2 LTS

Currently when I run I get the following errors:

I will use the bridge at 172.16.230.253
[ WARN:0] global /home/ubuntu/opencv/modules/videoio/src/cap_gstreamer.cpp (597) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
[ WARN:0] global /home/ubuntu/opencv/modules/videoio/src/cap_v4l.cpp (890) open VIDEOIO(V4L2:/dev/video0): can't open camera by index
Press return to stopException in thread Thread-2:
Traceback (most recent call last):
File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
self.run()
File "/usr/lib/python3.8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "./harmonize.py", line 237, in averageimage
coords[0] = ((coords[0])+1) * w//2 #Translates x value and resizes to video aspect ratio
NameError: name 'w' is not defined
Exception in thread Thread-3:
Traceback (most recent call last):
File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
self.run()
File "/usr/lib/python3.8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "./harmonize.py", line 320, in buffer_to_light
for i in rgb_bytes:
NameError: name 'rgb_bytes' is not defined

from harmonizeproject.

Hello,

Thanks for your comments, and my apologies for the late reply. It appears from your most recent post that the error lies not necessarily with improper installation, but rather the detection and/or ability to open a stream on dev/video0. This can happen for a number of reasons, most often not having a proper video signal present or something else running and already using the /dev/video0 designation. I've encountered such issues on my own despite having everything properly installed. One thing I want to update with the code is giving proper feedback when a video stream cannot be opened for whatever reason. Will look into this. Brad

from harmonizeproject.

Ok, so in your instructions could this possibly be because I tried Ubuntu on a Raspberry Pi vs. Raspbian? I was going to try loading Raspbian and following the instructions from there... Not sure if that might generate more info.

from harmonizeproject.

I've only worked with Ubuntu running on the R Pi 4, so not sure if Raspbian OS will shed any more light on the matter. First is to do a sanity check by running ls -ltrh /dev/video* and see if /dev/video0 is on the list. I plan to update the code to give feedback that /dev/video0 is actually available as opposed to just crashing.

from harmonizeproject.

Ok, so I’m in a position to restart. Have you tested from scratch recently? And can you point me towards the right SD card image to start with?

from harmonizeproject.

I tested it with Ubuntu Desktop 64-bit 20.04.2 in January of 2021. Since then, the Raspberri Pi installer only lists a Ubuntu Desktop option for the latest 64-bit OS version, currently, 21.04. That said, there is a decision to be made on which Ubuntu version OS to best support (ex. LTS vs latest desktop version). For now, I think a reasonable strategy is to stick to latest Ubuntu Desktop version if that is the only default option given with the installer. I've noticed some issues not recognizing /dev/video0 when the user is not logged into the console with a desktop open.

from harmonizeproject.

By the way ls -ltrh /dev/video* will provide a result that includes /dev/video0 when the OS properly detects a connected USB video card adapter.

from harmonizeproject.

Ok, will install Ubuntu Desktop tomorrow at latest. I have exact same HW as you listed, so I suspect it should work close to identically.

from harmonizeproject.

BTW I had tried 21.04 with first go around. From that installer.

from harmonizeproject.

Hi @earlthesquirrel , were you able to compile properly? I was going to close this issue if everything is ok now. Thanks, Brad

from harmonizeproject.

Will close this issue since the program has been tested and re-built on Ubuntu 22.04. If there is a build issue currently please open a new issue. Thanks!

from harmonizeproject.

Just FYI — the build never worked for me. I had identical hw as you listed, and prebuilt things never worked either. I finally found a reasonably price Hue Sync hub which solved things.

from harmonizeproject.

from harmonizeproject.