Quality-aware adaptive streaming over hypertext transfer protocol using quality attributes in manifest file

摘要

A wireless network device to support quality-aware adaptive media streaming includes a radio-frequency transceiver, a processor operably coupled to the radio-frequency transceiver, and a memory device operably coupled to the processor. The memory storing instructions that configure the processor to parse a manifest file to read information characterizing media content available for hypertext transfer protocol (HTTP) adaptive streaming, obtain quality information of the media content based on a quality attribute parsed from the manifest file, and dynamically switch streaming between different encoded portions of the media content in response to the quality information for an encoded portion of the media content deviating from a desired quality value.

主权项

1. A network device to support quality-aware adaptive media streaming over a network, the network device comprising:
a transceiver to receive a manifest file that defines hierarchical levels including an adaptation set level encompassing one or more other levels including a representation level and a segment level, the hierarchical levels including information characterizing encoded portions of media content available for adaptive streaming; and circuitry configured to:
obtain from a minimum and maximum quality attribute parsed from the adaptation set level of the manifest file, first quality information that specifies respective minimum and maximum video quality values of the encoded portions of the media content;obtain from a quality attribute parsed from the one or more other levels of the manifest file, second quality information that specifies quality values associated with the encoded portions of the media content;obtain from a bandwidth attribute parsed from the segment level of the manifest file, bandwidth information that specifies segment or sub-segment bitrate values associated with the encoded portions of the media content; anddynamically switch streaming between different encoded portions of the media content based on the bandwidth information and on the first and second quality information of a selected stream to maintain a desired video quality value.