Request Cancellation Method for Media Streaming

摘要

In overview, the various embodiments provide methods implemented by a processor executing a DASH client on a receiver device for determining when, in view of a change in the receiver device's resources (e.g., bandwidth, battery power, etc.), to cancel or abandon downloading the current segment at the current representation and restart download of the current segment at a different representation to meet one or more performance objectives and/or optimizations related to the change in the receiver device's resources. In various embodiments, the receiver device processor may perform a cost-benefit analysis to determine whether switching representations during the ongoing download of the current segment will benefit the performance of the receiver device, and the receiver device processor may switch representations in response to determining that switching representations would improve the performance of the receiver device.

主权项

1. A method of determining on a receiver device whether to cancel an ongoing download of a current segment of content at a current representation and to switch to another representation of the current segment in response to recognizing a switching situation, comprising:
selecting another representation of the current segment; determining a cost of switching to the selected representation; determining whether the cost of switching to the selected representation exceeds a cost threshold based on the switching situation; and performing one of:
switching to the selected representation in response to determining that the cost of switching does not exceed the cost threshold; orcontinuing the ongoing download in response to determining that the cost of switching exceeds the cost threshold.