Nowadays, heterogeneous devices are available, for communication of voice, video and data in market; in which video content sharing is facing new challenges like varying display sizes, bandwidth adaptation, compression techniques etc. In this paper, we present concepts for extending H.264/AVC towards scalable video coding (SVC), which enables layered coding schemes to allow the encoding of content into several qualities within a single stream, providing the viewer with the best quality depending on his needs and capabilities. SVC provides graceful degradation with bit rate, power and format adaptation. Moreover, the temporal, spatial and quality scalability to form enhancement layers are described. Due to advances in coding efficiencies scalability in video streaming has increased.
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