Bandwidth adaptation for dynamic adaptive transferring of multimedia

One or more non-transitory computer-readable storage media, storing one or more sequences of instructions, which when executed by one or more processors cause performance of:

• creating, at a server, an indication of availability that lists content available from one or more content sources, the indication of availability comprising at least:
• a description of two or more first quality level segments of a particular media content item and a description of two or more second quality level segments of the particular media content item, wherein at least one or more first quality level segments of the two or more first quality level segments represent a same content portion of the particular media content item as at least one or more second quality level segments of the two or more second quality level segments, wherein the two or more first quality level segments of the particular media content item require a first data rate, wherein the two or more second quality level segments of the particular media content item require a second data rate;
• causing the indication of availability to be sent to a client device among a plurality of client devices;
• and
• wherein the client device requests, from a content source of the one or more content sources selected from the indication of availability, a first segment from the two or more first quality segments of the particular media content item or from the two or more second quality segments of the particular media content item, based on available bandwidth over the network link.