However, the compressed video data is highly sensitivity to error code. A few error codes may induce much code be decoded invalidly.

而且压缩后的视频数据对码元错误非常敏感，少量码元的错误就可能导致大批码元无法正确解码。

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This channel coding based on source utilizes the property of compressed data which generated in order of importance, and improves the limitation to error sensitivity.

这种基于信源的信道编码方案充分利用了信源编码后的数据流按重要性排序的特性，并改善了其对比特差错非常敏感的不足。

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