Subj : Python help...
To   : All
From : paulie420
Date : Tue Sep 01 2020 16:43:43

I am working on a Raspberry Pi Zero project. Using a 1941 Philco Predicta
television, that I fully refurbished, I want to create some python code to
play a random video with a digital touch sensor module.

The digital touch sensory module is a bit different from a push button,
because you can set it by some wood or small metal area and push a 'button'
that doesn't appear to be there. Thats important, because I don't want to
modify this antique in any way...

Ok, so anyway... I have python randomizing the files... I have it using
omxplayer to play a video... but then python/the linux box just sits there
with the video player - not waiting for the next button press until the video
is completely over. 

I thought I could use subprocess.Popen instead of os.system, but I haven't
figured out if that it true - nor the correct syntax to doso.

Anyone wanna look at my code and see if they can help? 
Again, the setup is Raspberry Pi Zero holds videos... I want the python
script to wait for a button (digtal input device) press, play a random video
and then play another random video if I press the button again. (I know, too,
that I'll have to put some kill process code in there... but I figured I'd
get to that after I figured out how to wait for next button press prior to
video ending...) 

Heres my current code:
-----
from gpiozero import DigitalInputDevice
from time import sleep
import os
import random
import subprocess

button = DigitalInputDevice(21)

while True:
# Setup Randon Videos
    videoPath = "/home/pi/Videos/"
    videoList = os.listdir(videoPath)
    random.shuffle(videoList)
    for video in videoList:
         target = os.path.join(videoPath, video)
# Wait for button press
    print("Waiting for button press to start video.")
    button.wait_for_active()
    os.system('omxplayer --aspect-mode stretch "{}" >
/dev/null'.format(target))

#subprocess.Popen('omxplayer --acpect-mode stretch "{}" >
/dev/null'.format(target))

#The subprocess was my idea that would let python continue listening... but 
#didnt work YET. The os.system does play a video... just waits there before
#listening again for a button press.
-----



|07p|15AULIE|1142|07o
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--- Mystic BBS v1.12 A45 2020/02/18 (Raspberry Pi/32)
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