Systems and Methods for Encoding and Playing Back Video at Different Frame Rates Using Enhancement Layers

摘要

Systems and methods in accordance with embodiments of this invention provide for encoding and playing back video at different frame rates using enhancement layers. In a number of embodiments, video is encoded using temporal scalability involving the creation of a base layer at a first frame rate and an enhancement layer including additional frames enabling playback at a second higher frame rate. The second higher frame rate can also be referred to as an enhanced frame rate. In a number of embodiments, the base and enhancement layers are stored in one or more container files that contain metadata describing the enhancement layer. Based on the capabilities of a playback device, it can select the particular frame rate at which to playback encoded video.

主权项

1. A non-transitory machine readable medium containing processor instructions, where execution of the instructions by a processor causes the processor to perform a process comprising:
receive video having a plurality of access units; and encode the video into a set of layers comprising a base layer and at least one enhancement layer, wherein the encoding comprises: (i) using a temporal identifier of each access unit to determine the particular layer associated with the access unit and (ii) retaining an order of the temporal identifiers of the plurality of access units of the video.