rscam

Rust wrapper for v4l2.

```rust let mut camera = rscam::new("/dev/video0").unwrap();

camera.start(&rscam::Config { interval: (1, 30), // 30 fps. resolution: (1280, 720), format: b"MJPG", ..Default::default() }).unwrap();

for i in 0..10 { let frame = camera.capture().unwrap(); let mut file = fs::File::create(&format!("frame-{}.jpg", i)).unwrap(); file.write_all(frame.data).unwrap(); } ```

Default feature use_wrapper enables the v4l2 wrapper (e.g. v4l2_ioctl() instead of ioctl()). In this case, there is dependence on libv4l2.