cdosea-play/cdoseaplay/lights.py

#!/usr/bin/python3
import subprocess
import sys
import os
import time

import ox
import lanbox

from .pi import random


# Screen 1-5, Control, 6,7
'''
> _*10 patterns / cues that correspond to 10 digit:*_
> 0 = Screen LED @ 100% fade time = 9s (cue list 1)
> 1 = LED Control @ 10% fade time = 8s  (cue list 2)
> 2 = LED Control @ 20% fade time = 7s  (cue list 3)
> 3 = LED Control @ 30% fade time = 6s  (cue list 4)
> 4 = LED Control @ 40% fade time = 5s  (cue list 5)
> 5 = LED Control @ 50% fade time = 4s  (cue List 6)
> 6 = LED Control @ 60% fade time = 3s  (cue list 7)
> 7 = LED Control @ 70% fade time = 2s  (cue list 8)
> 8 = LED Control @ 80% fade time = 1s  (cue list 9)
> 9 = LED Control @ 90% fade time = 0s  (cue list 10)
'''
def channels(screen, control):
    screen = int(screen * 255)
    control = int(control * 255)
    return {'1': screen, '2': screen, '3': screen, '4': screen, '5': screen, '6': control, '7': control}


LIGHTS = {
    0: (channels(1, 0.0), 9),
    1: (channels(0, 0.1), 8),
    2: (channels(0, 0.2), 7),
    3: (channels(0, 0.3), 6),
    4: (channels(0, 0.4), 5),
    5: (channels(0, 0.5), 4),
    6: (channels(0, 0.6), 3),
    7: (channels(0, 0.7), 2),
    8: (channels(0, 0.8), 1),
    9: (channels(0, 0.9), 0.1),
}


def switch(state):
    lights, fade = LIGHTS[state]
    lb = lanbox.Lanbox()
    #lb.getChannels(lights)
    #lb.fadeTo(lights, fade)
    lb.layerGo(state)


if __name__ == '__main__':
    path = sys.argv[1]
    no_sleep = len(sys.argv) > 2

    n = int(os.path.getctime(path) - 1495280000)
    info = ox.avinfo(path)
    duration = info.get('duration', 0)

    seq = random(n * 1000)
    pos = 0
    lights = []
    while pos < duration - 15:
        sleep = seq() + 15
        light = seq()
        if pos + sleep > duration:
            break
        if not no_sleep:
            time.sleep(sleep)
        switch(light)
        pos += sleep