new MacBook Pro (Mac OX 10.8.1) webcam is not working with Processing

jz67867009

new MacBook Pro (Mac OX 10.8.1) webcam is not working with Processing

in Integration and Hardware • 1 year ago

I just bought a new MacBook Pro with OX 10.8. I used the following simple codes to test the webcam with Processing. It is not working in Processing 2.0b3 and 1.5.1. Then I tried both build-in camera and external webcam with Photo Booth. Both work well with Photo Booth, but not with Processing. Is anyone also experiencing the same problem? Is this a Processing problem or my laptop problem? Thanks for your help!

import processing.video.*;

Capture video;

void setup() {
size(320,240);
smooth();
frameRate(15);
background(255);

video = new Capture(this,320,240,15);
}

void draw() {
if (video.available()) {
video.read();
}

image(video,0,0);
}

Replies(3)

renardg

Re: new MacBook Pro (Mac OX 10.8.1) webcam is not working with Processing

1 year ago

Hi,

had similar problems. The example from the Processing web page at the end of this post worked for me.

Apparently 'cam.start' and a few other details of the new code are important. (If anyone uses an external display also try 'standalone-mode' of the Powerbook - there seem to be problems with external displays.)

Good luck

import processing.video.*;

Capture cam;

void setup() {
  size(640, 480);

  String[] cameras = Capture.list();
  
  if (cameras.length == 0) {
    println("There are no cameras available for capture.");
    exit();
  } else {
    println("Available cameras:");
    for (int i = 0; i < cameras.length; i++) {
      println(cameras[i]);
    }
    
    // The camera can be initialized directly using an 
    // element from the array returned by list():
    cam = new Capture(this, cameras[0]);
    cam.start();     
  }      
}

void draw() {
  if (cam.available() == true) {
    cam.read();
  }
  image(cam, 0, 0);
  // The following does the same, and is faster when just drawing the image
  // without any additional resizing, transformations, or tint.
  //set(0, 0, cam);
}

jz67867009

Re: new MacBook Pro (Mac OX 10.8.1) webcam is not working with Processing

1 year ago

Thanks, renardg. Using your example, the build-in webcam works partially - it records half of my screen - I mean that if I stand in front of the camera, only half of my face shows up in the video. Then I tried a bigger setup size (1280, 720). This time, it works nicely. I don't know why the setup size matters, but I am still happy that the video is working again. Please let me know if you have any idea on the setup size. Thanks!

renardg

Re: Re: new MacBook Pro (Mac OX 10.8.1) webcam is not working with Processing

1 year ago

'println("Available cameras:");

for (int i = 0; i < cameras.length; i++) {

println(cameras[i]);'

displays the list of 'Available Cameras' (configurations) (see example at the end of this post - in this case 3 cameras with 3 different frame rates and different resolution ((sometimes with leading numbers for easier identification of configurations)).

'cam = new Capture(this, cameras[0]);'

selects configuration number '0' (would be 'Camera' with size=1280x960 and fps=30)

Just set the number to the configuration that matches with the other code (e.g. resolution with window size, otherwise pixels will be lost.)

However, using an external display with the laptop lid remaining closed (internal camera disabled?) the code does not work (probably gets stuck at Capture.list). Is there anyone out there with an idea on how to resolve the issue?

Available cameras:

name=Camera,size=1280x960,fps=30

name=Camera,size=1280x960,fps=15

name=Camera,size=1280x960,fps=1

name=Camera,size=640x480,fps=30

name=Camera,size=640x480,fps=15

name=Camera,size=640x480,fps=1

name=Camera,size=320x240,fps=30

name=Camera,size=320x240,fps=15

name=Camera,size=320x240,fps=1

name=Camera,size=160x120,fps=30

name=Camera,size=160x120,fps=15

name=Camera,size=160x120,fps=1

name=Camera,size=80x60,fps=30

name=Camera,size=80x60,fps=15

name=Camera,size=80x60,fps=1

name=Bildschirm-iSight,size=1280x1024,fps=30

name=Bildschirm-iSight,size=1280x1024,fps=15

name=Bildschirm-iSight,size=1280x1024,fps=1

name=Bildschirm-iSight,size=640x512,fps=30

name=Bildschirm-iSight,size=640x512,fps=15

name=Bildschirm-iSight,size=640x512,fps=1

name=Bildschirm-iSight,size=320x256,fps=30

name=Bildschirm-iSight,size=320x256,fps=15

name=Bildschirm-iSight,size=320x256,fps=1

name=Bildschirm-iSight,size=160x128,fps=30

name=Bildschirm-iSight,size=160x128,fps=15

name=Bildschirm-iSight,size=160x128,fps=1

name=Bildschirm-iSight,size=80x64,fps=30

name=Bildschirm-iSight,size=80x64,fps=15

name=Bildschirm-iSight,size=80x64,fps=1

name=Integrierte iSight-Kamera,size=640x480,fps=30

name=Integrierte iSight-Kamera,size=640x480,fps=15

name=Integrierte iSight-Kamera,size=640x480,fps=1

name=Integrierte iSight-Kamera,size=320x240,fps=30

name=Integrierte iSight-Kamera,size=320x240,fps=15

name=Integrierte iSight-Kamera,size=320x240,fps=1

name=Integrierte iSight-Kamera,size=160x120,fps=30

name=Integrierte iSight-Kamera,size=160x120,fps=15

name=Integrierte iSight-Kamera,size=160x120,fps=1

name=Integrierte iSight-Kamera,size=80x60,fps=30

name=Integrierte iSight-Kamera,size=80x60,fps=15

name=Integrierte iSight-Kamera,size=80x60,fps=1

Top Reply