I made a project recently on my raspberry to read a 4 byte signal coming from TCP/IP protocol and play the adequate video depending on the signal (0001, 0002, 0101 or 0102).
I have 2 problems with that :
1- The code works fine when executed manually but if I launch it on reboot using cron, the code is running, but not working properly.
2- The code works (manually) on the Pi I coded it on, but if I transfer the files to the other Pis I need it on, I get the EXACT same error (launching it manually) as if I launch it through cron on the 1st Pi.
The execution error I'm mentioning here is the following : The dbus command doesn't stop the videos, it's not responding.
The code is in python 3, all the raspberries are have the exact same parameters, I took the files as they were on the 1st Pi and copied them on the others.
my cron file is
@reboot python /home/v1_M.py &
my code is :
from time import sleep
import subprocess
import os
import socket
import sys
play_video1 = None
play_video2 = None
play_video3 = None
play_video4 = None
vid_block = 0
check = None
data = None
try:
while True:
subprocess.Popen(["nc -l 1024 -i 1 > /home/resultat.txt"], shell=True)#Listens to port 1024 and writes data in txt file
sleep(2)
a=open('/home/resultat.txt','r')
lines = a.readlines()
a.close()
if lines:
signal = lines[-1]#signal in bytes
data = signal[-4:]#converts signal to string
#print (signal)
subprocess.Popen(["> /home/resultat.txt"], shell=True)#Empties txt file
#print (data)
if data != check :
vid_block = 0
check = data
if data == '0101' and vid_block == 0 : # video 1
os.system('dbuscontrol.sh stop')
play_video1 = subprocess.Popen(['omxplayer -o hdmi -r --no-osd --aspect-mode fill /home/misano_iway_v3.mp4'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
vid_block = 1
elif data == '0102' and vid_block == 0 : # video 2
os.system('dbuscontrol.sh stop')
play_video2 = subprocess.Popen(['omxplayer -o hdmi -r --no-osd --aspect-mode fill /home/indy_iway_v2.mp4'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
vid_block = 1
elif data == '0001' and vid_block == 0: # Video logo
os.system('dbuscontrol stop')
play_video3 = subprocess.Popen(['omxplayer -r --no-osd --loop --aspect-mode fill /home/Logo.mp4'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
vid_block = 1
elif data == '0002' and vid_block == 0: # Video logo
os.system('dbuscontrol.sh stop')
play_video4 = subprocess.Popen(['omxplayer -r --no-osd --loop --aspect-mode fill /home/Logo.mp4'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
vid_block = 1
except KeyboardInterrupt:
print("Exit")
data = None
os.system('dbuscontrol.sh stop')
I know my code isn't pretty but I'm quite new to python and raspberry and I just want to make it work for now, idc about optimization.
I'd really appreciate if you guys can help.
