Adaptive streaming aware node to enable a smooth transition quality, encoder and client

摘要

For adaptive streaming, a video item is available in plural quality versions. Corresponding video slices (411, 421; 412, 422) in the different quality versions are pre-processed to contain bit strings for equal image portions. The client (303) can request a video segment of the video item thereby specifying in its request any arbitrary requested quality / bit rate. An adaptive streaming aware node (301) thereupon selects video slices / NAL units (431, 442) for the requested video segment proportionally from plural quality versions in a ratio matching the arbitrary requested quality. The adaptive streaming aware node (301) streams the video segment composed of the proportionally selected video slices / NAL units (431, 442) to the client (303).