在研究传统视频数据打包算法中所采用的光栅扫描方式的局限性基础上，融合离散化宏块和螺旋扫描，融合这两种算法提出了一种新的视频数据打包算法，该算法首先按照某种规则离散化编码宏块，然后再从人眼感兴趣的中心区域开始，螺旋形步进打包．理论和试验都证明了这种新型的打包算法一方面可以有效地提高数据包抗丢包、抗误码的性能，另一方面可以使得数据包具有一定的可伸缩性，该算法比传统的打包算法在解码输出质量上具有明显的提高。

In the error-prone environments like wireless channels, bits error or/and packets loss is unavoidable. So error concealment is becoming an important and necessary technology for decoder. As most error concealment schemes are all based on the neighboring spatial information, the probability of that surrounding macroblocks are all lost must be decreased. Address this question, This paper studies the limitation of the raster scan order that adopted by tradition video data packeted algorithm, then considers scatter macroblocks and helix scan order. Combining these two schemes, a new video data packet algorithm is proposed. In this scheme, macroblocks are assigned to different packets following a special scatter pattern. Then they are packeted by helix scan order from the visual central area. Simulation results show this algorithm not only can make compressed video data more robust, but also make the video stream be scalable.