US 10,944,982 B1 · Rendition switch indicator

Abstract

Methods to switch between renditions of a video stream are generally described. In some examples, the methods may include encoding a video stream at a first image quality in a first rendition and a second, lower image quality in a second rendition. The methods may further include sending the first rendition to a recipient computing device. The methods may include receiving a request to switch from the first rendition to the second rendition. The methods may include determining that first indicator data of a first inter-coded frame indicates that the video stream can be switched to a lower image quality rendition at the first inter-coded frame. In some examples, the methods may further include sending the second rendition to the recipient computing device.

Claims20

Dependent claims

A method of decoding video, comprising:

receiving, by a first device from a second device, first video data having a first image quality;
requesting second video data, wherein the second video data has a second image quality lower than the first image quality;
receiving, from the second device, the second video data;
identifying first indicator data of a first inter-coded frame of the second video data;
determining that the first indicator data provides a first indication to decode the first inter-coded frame by referencing a second inter-coded frame of the first video data;
determining that the first indicator data provides a second indication to disable temporal motion vector prediction to decode the first inter-coded frame;
disabling temporal motion vector prediction for the first inter-coded frame;
and
decoding the first inter-coded frame by referencing the second inter-coded frame.

6 more elements

A device for decoding video, comprising:

at least one processor;
and
at least one non-transitory computer-readable memory storing computer-executable instructions which when executed cause the at least one processor to:
receive, by a first device from a second device, first video data having a first image quality;
request a second video data, wherein the second video data has a second image quality lower than the first image quality;
receive, from the second device, the second video data;
identify first indicator data of a first inter-coded frame of the second video data;
determine that the first indicator data provides a first indication to decode the first inter-coded frame by referencing a second inter-coded frame of the first video data;
determine that the first indicator data provides a second indication to disable temporal motion vector prediction to decode the first inter-coded frame;
disable temporal motion vector prediction for the first inter-coded frame;
and
decode the first inter-coded frame by referencing the second inter-coded frame.

9 more elements

Dependencies are inferred from the claim text.

Rendition switch indicator

Life of this patent

Rendition switch indicator

Life of this patent

Abstract

Claims20