Function create_driver

rustcv/src/videoio/backend.rs:13–37

创建驱动实例的工厂函数

()

/// 创建驱动实例的工厂函数
pub fn create_driver() -> Result<Box<dyn Driver>> {
    // 根据当前操作系统，直接选用原生后端 (不再需要 feature 门控)
    #[cfg(target_os = "linux")]
    {
        Ok(Box::new(rustcv_backend_v4l2::V4l2Driver::new()))
    }

    #[cfg(target_os = "macos")]
    {
        Ok(Box::new(rustcv_backend_avf::AvfDriver::new()))
    }

    #[cfg(target_os = "windows")]
    {
        Ok(Box::new(rustcv_backend_msmf::MsmfDriver::new()))
    }

    #[cfg(not(any(target_os = "linux", target_os = "macos", target_os = "windows")))]
    {
        // 如果没有匹配的后端，返回错误
        Err(anyhow!(
            "No supported backend found for this OS. Please check Cargo features."
        ))
    }
}

/// 辅助：获取首选后端类型
pub fn default_backend() -> BackendType {