Class Camera

rustcv-camera/src/camera.rs:39–47

A camera capture device with zero-copy frame access. 具有零拷贝帧访问能力的摄像头采集设备。 `Camera` wraps a platform-specific backend and provides: - [`next_frame()`](Self::next_frame): zero-copy frame borrowing mmap buffers - [`read_decoded()`](Self::read_decoded): decode into a reusable Mat - RAII buffer management (buffers auto-returned on frame drop) `Camera` 封装平台特定的后端并提供： - [`next_frame()`](Self::next_frame)

/// - [`read_decoded()`](Self::read_decoded)：解码到可复用的 Mat
/// - RAII 缓冲区管理（帧 drop 时自动归还缓冲区）
pub struct Camera {
    /// Platform-specific backend (V4L2 on Linux).
    /// 平台特定后端（Linux 上为 V4L2）。
    backend: backend::PlatformBackend,

    /// The actual configuration negotiated with the driver.
    /// 与驱动协商后的实际配置。
    config: ResolvedConfig,
}

impl Camera {
    /// Open a camera by device index (0 = first camera).