Method to_fourcc

rustcv-camera/src/pixel_format.rs:112–122

Convert back to a V4L2 FourCC `u32`. 转换回 V4L2 FourCC `u32`。

(self)

    /// Convert back to a V4L2 FourCC `u32`.
    /// 转换回 V4L2 FourCC `u32`。
    pub fn to_fourcc(self) -> u32 {
        match self {
            Self::Mjpeg => fcc::MJPEG,
            Self::Yuyv => fcc::YUYV,
            Self::Nv12 => fcc::NV12,
            Self::Bgr24 => fcc::BGR24,
            Self::Rgb24 => fcc::RGB24,
            Self::Bgra32 => fcc::BGRA32,
            Self::Other(v) => v,
        }
    }

    /// Returns a human-readable FourCC string (e.g., "MJPG").
    /// 返回人类可读的 FourCC 字符串（如 "MJPG"）。