Layered Video Encoding and Decoding

摘要

In some examples, a layered encoding component and a layered decoding component provide for different ways to encode and decode, respectively, video streams transmitted between devices. For instance, in encoding a video stream, a layered encoding component may analyze the content of successive video frames and determine different types of encoding techniques to use for different ones of the video frames. Further, in some cases, some of the encoding techniques may be used on less than an entire video frame. In another example, in decoding a video stream, a layered decoding component may receive video frames encoded with different types of encoding. The layered decoding component may decode the differently encoded video frames and combine them to reconstruct a video stream.

主权项

1. A system comprising:
one or more computing nodes, each comprising at least one processor and memory, wherein the one or more computing nodes are configured to implement an encoding component and a decoding component, wherein the encoding component is configured to:
determine an amount of change between one or more regions of first image data with corresponding one or more regions of second image data;determine, based at least partly on the amount of change, that the one or more regions of the first image data are suitable for a first layer encoding;generate a first encoding of the one or more regions of the first image data; andgenerate a second encoding of the second image data; and wherein the decoding component is configured to:
decode the first encoding to generate a reconstructed first image data,decode the second encoding to generate a reconstructed second image data, andgenerate a video stream comprising the reconstructed first image data and the reconstructed second image data.