Seawell Networks Inc.

Arris Canada, Inc.

Gregory Scott Murray

Robert Linwood Myers

Scott Ernest Aitchison

Methods and systems for creating and retrieving scalable media files using a chunking model. A plurality of network abstraction layer (NAL) units representing a scalable media presentation are grouped into a plurality of video chunks wherein each chunk represents only the NAL units of one layer and a specific time period. The plurality of video chunks are then stored in one or more scalable media files along with indexing information which provides information for retrieving the NAL units from each video chunk. In this manner, a client can request only the video chunks (and thus NAL units) that it needs or wants to achieve a specific bandwidth.

Methods and systems for scalable video chunking

Methods and systems for delivering scalable media content from a server to a client are provided. A server index is provided to a media server for indexing the layers of scalable content in the form of media data groups. The client transmits at least one media request comprising a scalable media presentation identifier, a requested quality identifier and a requested layer identifier. Based on the at least one request, the server identifies the requested media data groups and transmits the requested media data groups to the client. The client receives the requested media data groups, which may be a subset of all available media data groups, and reorders the media data into decoding order for subsequent decoding and playback.

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Toronto, Canada

Gregory Scott Murray