Improving the fault resilience of an H.264 decoder using static analysis methods

Improving the fault resilience of an H.264 decoder using static analysis methods
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使用静态分析方法提高 H.264 解码器的故障恢复能力

DOI:
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发表时间:
2013
期刊:
TECS
影响因子:
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通讯作者:
M. Engel
M. Engel
中科院分区:
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文献类型:
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作者:
F. Schmoll;A. Heinig;P. Marwedel;M. Engel

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由于半导体结构和电源电压的减少,容错迅速发展成为嵌入式系统最重要的设计目标之一。然而,由于开销和成本原因,资源受限的系统无法承担传统的纠错费用。需要新的方法来在出现错误时维持可接受的服务质量,同时避免崩溃。 我们提出了一种灵活的容错方法,能够使用应用程序注释和静态分析方法根据错误语义选择纠正操作。我们通过分析漏洞并使用灵活的错误处理提高 H.264 解码器的可靠性来验证我们方法的有效性。
Fault tolerance rapidly evolves into one of the most significant design objectives for embedded systems due to reduced semiconductor structures and supply voltages. However, resource-constrained systems cannot afford traditional error correction for overhead and cost reasons. New methods are required to sustain acceptable service quality in case of errors while avoiding crashes. We present a flexible fault-tolerance approach that is able to select correction actions depending on error semantics using application annotations and static analysis approaches. We verify the validity of our approach by analyzing the vulnerability and improving the reliability of an H.264 decoder using flexible error handling.