capture.py

from objc_util import *
import time
import threading
C = ObjCClass

def take_photo_now(filename='photo.jpg'):
    session = C('AVCaptureSession').new().autorelease()
    session.sessionPreset = 'AVCaptureSessionPresetPhoto'
    device = C('AVCaptureDevice').defaultDeviceWithMediaType_('vide')
    device_input = C('AVCaptureDeviceInput').deviceInputWithDevice_error_(device, None)
    session.addInput_(device_input)
    image_output = C('AVCaptureStillImageOutput').new().autorelease()
    session.addOutput_(image_output)
    session.startRunning()
    # NOTE: You may need to adjust this to wait for the camera to be ready (use a higher number if you see black photos):
    time.sleep(0.1)
    def handler_func(_block, _buffer, _err):
        buffer = ObjCInstance(_buffer)
        img_data = C('AVCaptureStillImageOutput').jpegStillImageNSDataRepresentation_(buffer)
        img_data.writeToFile_atomically_(filename, True)
        e.set()
    video_connection = None
    for connection in image_output.connections():
        for port in connection.inputPorts():
            if str(port.mediaType()) == 'vide':
                video_connection = connection
                break
        if video_connection:
            break
    e = threading.Event()
    handler = ObjCBlock(handler_func, restype=None, argtypes=[c_void_p, c_void_p, c_void_p])
    retain_global(handler)
    image_output.captureStillImageAsynchronouslyFromConnection_completionHandler_(video_connection, handler)
    e.wait()


take_photo_now('photo.jpg')
import console
console.quicklook('photo.jpg')