Performance analysis of the scalable video coding (SVC) extension of H.264/AVC for constrained scenarios
2011
Scalable Video Coding (SVC) is the extension of H.264/AVC standard proposed by Joint Video Team (JVT) to provide
flexibility and adaptability on video transmission. SVC is an extension of the H.264/AVC codec that exploits the use of
layers, what permits to obtain a bit stream where specific parts can be removed to obtain an output video with a lower
resolution (temporal or spatial) and/or lower quality/fidelity.
This paper provides a performance analysis of the scalable video coding (SVC) extension of H.264/AVC for constrained
scenarios. For this, the open-source decoder called "Open SVC Decoder" was adapted to obtain a version likely to be
implemented in reconfigurable architectures. For each scenario a set of different sequences were decoded to analyze the
performance of each functional block inside the decoder.
From this analysis we conclude that reconfigurable architectures are a suitable solution for an SVC decoder in a
constrained device or for a specific range of scalability levels. Our proposal consists in architecture of a SVC decoder
that admits different options depending on device requirements where certain blocks are customizable to improve the
performance of decoder in hardware resources usage and execution time.
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