1 Scalable Video Streaming with Fine Grain Adaptive Forward Error Correction

In this paper, we investigate a fine grain adaptive forward error-correction (FGA-FEC) coding scheme for scalable video bitstreams. In our work, both the embedded source bitstream and the error-control codes are granularly adapted at block level in intermediate overlay nodes to satisfy heterogeneous users with both different video frame-rate/spatial resolution/quality preferences and different network connections. The proposed FGA-FEC scheme encodes and adapts the embedded source-coded bitstream in such a way that if part of the video source data is actively dropped, parity bits protecting that piece of data are also removed, yielding an efficient result without any transcoding. Index Terms scalable video, FEC, overlay network, adaptation, video streamin