GrooveCube

A Virtual, Collaborative Freestyle Experience

GrooveCube

Things used in this project

Hardware components

Raspberry Pi 1 Model A+
Raspberry Pi 1 Model A+
×1

Hand tools and fabrication machines

Laser cutter (generic)
Laser cutter (generic)

Story

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Custom parts and enclosures

Groovecube Casing

Groovecube Logo Sticker

Groovecube Internal Casing Structure

Groovecube Paper Packaging

Groovecube Packaging Sticker Label

Code

GrooveCube.py

Python
Python Script to run on button press. Triggers a script that runs a blinking light countdown for 5 seconds, music playing for a designated amount of time, and video recording through the camera module. After the duration of the song is looped through, the script concatenates all the videos from the song together, splices the full song track underneath, and uploads the finished video to YouTube.
import numpy as test_video
import cv2
import time
import os
import subprocess
import RPi.GPIO as GPIO ## Import GPIO Library
import pygame
import threading
from picamera.array import PiRGBArray
from picamera import PiCamera



###CODE TO BLINK LIGHT BEFORE RECORD


## Define function named Blink()
def Blink():
    print "blink start"
    GPIO.setmode(GPIO.BOARD) ## Use BOARD pin numbering
    GPIO.setup(7, GPIO.OUT) ## Setup GPIO pin 7 to OUT
    #might have to debug this because haven't tested
    GPIO.output(7, True)
    time.sleep(1)
    GPIO.output(7, False)
    time.sleep(1)
    #0 second
    for i in range(0, 2):
        GPIO.output(7, True)
        time.sleep(0.5)
        GPIO.output(7, False)
        time.sleep(0.5)
    #4 second
    for i in range(0, 8):
        GPIO.output(7, True)
        time.sleep(0.125)
        GPIO.output(7, False)
        time.sleep(0.125)
        GPIO.output(7, True)
    #5 second
    print "blink end"


#PLAY AUDIO CLIP
def play_audio(clip_to_play):
    print 'play audio start'
    pygame.mixer.init()
    pygame.mixer.music.load(clip_to_play)
    pygame.mixer.music.play()
    while pygame.mixer.music.get_busy() == True:
      continue

    #put the one we just played in a folder
    old_dest = directory + '/' + clip_to_play
    new_dest = directory + '/played/' + clip_to_play
    os.rename(old_dest, new_dest) #do i need this to be the correct directory?
    print 'play audio end'

###CODE FROM ORIGINAL START.PY TO RECORD SET LENGTH OF VIDEO

def record_video(): 
    time.sleep(5)
    timestamp = time.time()
    stop_time = timestamp + 20
    record = "raspivid -o test" + str(timestamp) + ".avi -t 20000"
    subprocess.call(record, shell=True)
    print "recording started"
    while True:
        GPIO.output(7, True) ## Turn on GPIO pin 7
        if time.time() >= stop_time:
            GPIO.output(7, False) ## Turn on GPIO pin 7
            GPIO.cleanup()
            print "stopped recording"
            break


#BEGIN CONCAT CODE

def concat_middle(videofiles):
    i = 0
    x = '' 
    while i < len(videofiles):
        
        x += videofiles[i] + '|'
        i += 1 
    return x[0:-1]
        
       # output,error  = subprocess.Popen(
        #           command, universal_newlines=True, shell=True,
         #              stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()

def create_video():
    print "begin concat"
    directory = '/home/pi/Desktop/cp1'
    videofiles = [n for n in os.listdir(directory) if n[0]=='t' and n[-4:]=='.avi']

    command_start = 'ffmpeg -i "concat:'
    #command_end = '" -i hotline.m4a -c copy out' + str(timestamp) + '.avi'       
    command_end = '" -i hotline_short.m4a -c copy out' + '.avi'    

    command = command_start + concat_middle(videofiles) + command_end
    print command
#    subprocess.call(command, shell=True)
    output,error  = subprocess.Popen(
                   command, universal_newlines=True, shell=True,
                       stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
    print "end concat"

###UPLOADING TO YOUTUBE FUNCTION
def upload_vid():
    #print 'sleeping'     
    #time.sleep(100)
    print "begin upload"
    youtube_up = "youtube-upload --title='Groove Cube' /home/pi/Desktop/cp1/out.avi"
    subprocess.call(youtube_up, shell=True)
    print "end upload"


###CODE TO RESPOND TO BUTTON PRESS
GPIO.setmode(GPIO.BOARD)
GPIO.setup(11, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True:
    input_state = GPIO.input(11)
    if input_state == False:
        #do some sort of subprocess.call(something)
        print('Button Pressed')
	GPIO.cleanup()
        break

###END BUTTON PRESS CODE

threads = []
directory = '/home/pi/Desktop/cp1'
audiofiles = [int(n[2]) for n in os.listdir(directory) if n[0]=='h' and n[-4:]=='.mp3']
audiofiles.sort()
#play lowest numbered first
if len(audiofiles) > 0:
    clip_to_play = 'hb' + str(audiofiles[0]) + '.mp3'

threads.append(threading.Thread(target=Blink))
threads.append(threading.Thread(target=play_audio, args=(clip_to_play,)))
threads.append(threading.Thread(target=record_video))
map(lambda x: x.start(), threads)
audiofiles.remove(audiofiles[0])
print audiofiles
#below should run after everything
if len(audiofiles) == 0:
    time.sleep(26)
    create_video()
    upload_vid()
    for vid in videofiles:
	os.remove(directory + '/' + vid)
	print 'vids moved back'
    os.remove(directory + '/' + 'out.avi')
    played_directory = directory + '/played/'
    move_back = [n for n in os.listdir(played_directory) if n[0]=='h' and n[-4:]=='.mp3']
    for m in move_back:
	os.rename(played_directory + m, directory + '/' + m)
    print move_back

Credits

Serena Chang

Serena Chang

3 projects • 0 followers
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Ingrid Hong

Ingrid Hong

3 projects • 0 followers
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Maya Angelica Hernandez

Maya Angelica Hernandez

4 projects • 4 followers
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Alice Pang

Alice Pang

4 projects • 0 followers
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Mark Lam

Mark Lam

4 projects • 0 followers
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