gistfile1.py

### erik@hecanjog.com # October 4 2012 # Milwaukee ###

from PIL import Image
import dsp
import subprocess

img = Image.open('blue.jpg')
original = img.copy()

img = img.crop((0, 0, 640, 480))

out = ''
type = 'jump'
frame_count = 0

def tone(type='jump', partials=1):
    """ TODO: add more sound generators, explore frame groupings and masks """
    if type == 'jump':
        frames = 1470 / partials
        wform = dsp.wavetable('random', frames)
        out = dsp.fill(''.join([ dsp.pack(c) * 2 for c in wform ]), 1470)
    elif type == 'sit':
        out = dsp.mix([ dsp.fill(''.join([ dsp.pack(c) * 2 for c in dsp.wavetable('sine2pi', 1470 / (i +1)) ]), 1470) for i in range(partials) ])
        out = dsp.pan(out, dsp.rand())

    return out

for s in range(120):
    curve = dsp.breakpoint([dsp.rand() for c in range(10)], 30)

    for i in range(30):
        frame_count += 1

        partials = dsp.randint(1, 10)

        uptrig = dsp.randint(0, 30)
        downtrig = dsp.randint(0, 30)

        if s % 5 == 1 and (i == uptrig or i == downtrig):
            type = dsp.randchoose(['jump', 'sit'])

        out += tone(type, partials)

        q = int(50 * curve[i] + 40)

        up = dsp.randint(0, dsp.randint(30, 300)) if s % 5 == 1 and i == uptrig else 0 
        down = dsp.randint(0, dsp.randint(30, 300)) if s % 5 == 1 and i == downtrig else 0 
        img = img.offset(up, down)
        img.save('video/blue-' + str(frame_count) + '.jpg', 'JPEG', quality=q)

    img = Image.open('video/blue-' + str(frame_count) + '.jpg')

    if s % 5 == 0:
        img = original
        a, b = dsp.randint(0, 1000), dsp.randint(0, 1000)
        c, d = a + 640, b + 480 
        img = img.crop((a, b, c, d))


dsp.write(out, 'blue', False)
subprocess.call('ffmpeg -framerate 30 -i video/blue-%d.jpg -i renders/blue.wav -shortest -sameq blue.avi', shell=True)