Method open_with

rustcv-camera/src/camera.rs:75–93

Open a camera with custom configuration. 使用自定义配置打开摄像头。 # Examples ```no_run use rustcv_camera::{Camera, CameraConfig, PixelFormat}; let cam = Camera::open_with(0, CameraConfig::new() .resolution(1280, 720) .fps(60) .pixel_format(PixelFormat::Yuyv) .buffer_count(8) ).unwrap(); ```

(index: u32, config: CameraConfig)

    /// ).unwrap();
    /// ```
    pub fn open_with(index: u32, config: CameraConfig) -> Result<Self> {
        // Linux: V4L2 uses /dev/videoN device paths.
        // macOS / Windows: backends use the numeric index as a string.
        // Linux：V4L2 使用 /dev/videoN 设备路径。
        // macOS / Windows：后端使用数字索引的字符串形式。
        #[cfg(target_os = "linux")]
        let device_path = format!("/dev/video{}", index);
        #[cfg(not(target_os = "linux"))]
        let device_path = format!("{}", index);

        let mut backend = backend::PlatformBackend::new();
        let resolved = backend.open(&device_path, &config)?;
        backend.start()?;

        Ok(Self {
            backend,
            config: resolved,
        })
    }

    /// Capture the next frame (zero-copy).
    /// 采集下一帧（零拷贝）。