A multiple layered audiovisual streaming system using the two-phase synchronization and FGS/BSAC techniques

For a ubiquitous multimedia streaming, an adaptive multimedia streaming scheme with multiple layered audiovisual (AV) coding is required over heterogeneous networks. This paper proposes a multiple layered audiovisual streaming scheme denoted ML-AVSS to deliver layered audiovisual data. Fine-granular scalability (FGS) and bit sliced arithmetic coding (BSAC) techniques are used to segment video and audio data into individual base-layer and multiple enhancement-layer bitstreams. With advantages of layered coding, two phases of streaming synchronization, including a human-perceptual based transmission scheme, de-jitter procedure, conditional retransmission and play-out synchronization, are proposed to transmit hybrid multiple layered audiovisual bitstreams. Experiment results show that the proposed ML-AVSS is a feasible streaming scheme to overcome challenges of the ubiquitous multimedia streaming, e.g., constrained available bandwidth, quality degradation, unsmooth playback, etc.