gphoto

The gphoto crate provides a safe wrapper around the native libgphoto2 library.

Dependencies

In order to use the gphoto crate, you must have a Unix system with the libgphoto2 library installed where it can be found by pkg-config.

On Debian-based Linux distributions, install the libgphoto2-dev package:

sudo apt-get install libgphoto2-dev

On OS X, install libgphoto2 with Homebrew:

brew install libgphoto2

Usage

Add gphoto as a dependency in Cargo.toml:

[dependencies]
gphoto = "0.1.0"

Import the gphoto crate. The starting point for nearly all gphoto functionality is to create a context object. You can then autodetect a camera using the Camera::autodetect() function:

extern crate gphoto;

use std::path::Path;

fn main() {
  let mut context = gphoto::Context::new();

  let mut camera = gphoto::Camera::autodetect(&mut context).unwrap();
  let capture = camera.capture_image().unwrap();
  let mut file = gphoto::FileMedia::create(Path::new(capture.basename())).unwrap();

  camera.download(&capture, &mut file).unwrap()
}

OS X Usage

OS X opens cameras automatically when connected, which prevents other applications from opening the camera device. When attempting to open a camera that is already opened by the operating system, you will get an error message like the following:

Could not claim the USB device

To fix this, you have to kill the PTPCamera process after connecting a camera to your system:

killall PTPCamera

Each camera is opened with a separate instance of the PTPCamera application. If you have several cameras connected, you may want to kill individual PTPCamera processes instead of using killall.

License

Copyright © 2015 David Cuddeback

Distributed under the MIT License.

Note: By using this crate, your executable will link to the libgphoto2 C library, which is licensed under the LGPL version 2.1.