Method stop

rustcv-backend-v4l2/src/stream.rs:59–64

(&mut self)

    }

    async fn stop(&mut self) -> Result<()> {
        // 调用 v4l::io::traits::Stream 的 stop
        V4lStream::stop(&mut self.inner).map_err(CameraError::Io)?;
        self.is_streaming = false;
        Ok(())
    }

    async fn next_frame(&mut self) -> Result<Frame<'_>> {
        if !self.is_streaming {