HIGH DYNAMIC RANGE ENHANCEMENT AUTHORIZATION

Number: 20190182448
Published: 2019-06-13
Filed: 2017-12-11
Assignee: Disney Enterprises, Inc.
Inventors: ARANA; MARK
CPC: H04N5/76; H04N9/8205
Verdict: Set aside HDR enhancement authorization, DRM
Source: Google Patents · FreePatentsOnline

Abstract

Systems and methods for selectively enabling enhanced high dynamic range (HDR) metadata for enhanced HDR playback of media content stored on a media disc are provided. Media discs may be authored with a base layer media content in accordance with a non-enhanced HDR media profile. Media discs may also include enhanced HDR metadata. In order to enable the use of the enhanced HDR metadata, a media player in which the media disc is inserted for playback may first seek authorization from a third-party resource, such as an authorization server. Only after obtaining authorization is the media player allowed to playback the media content stored on the media disc in conjunction with the enhanced HDR metadata. If authorization is not obtained, the media player may only play the base layer media content.

Background

TECHNICAL FIELD

The present disclosure relates generally to remote authorization for enabling high dynamic range metadata.DESCRIPTION OF THE RELATED ART

Dynamic range can refer to a ratio between the largest and smallest values that a certain quantity can assume. In the context of photography or video, dynamic range can refer to the range of values representative of a gradient between the whitest whites and the blackest blacks or the lowest and highest values of density and luminance in an image or frame. A goal in photography or video is to extend the range of tones between the maximum and minimum values to create a “fuller” look. Accordingly, high dynamic range (HDR) video can be video that has a greater dynamic range than that of standard dynamic range (SDR) video which, for example, uses a conventional gamma curve. Thus, HDR video produces images that have higher contrast and expanded color ranges that combine to provide more refined details.BRIEF SUMMARY OF THE DISCLOSURE

In accordance with one embodiment, a computer-implemented method comprises determining at least one of a title of a media disc and media player identification data regarding a media player in which the media disc is inserted. The computer-implemented method may further comprise generating an enhancement metadata authorization request including at least one of the title and the media player identification data, and transmitting the enhancement metadata authorization request to an author

Claims

1. A computer-implemented method, comprising: determining at least one of a title of a media disc and media player identification data regarding a media player in which the media disc is inserted; generating an enhancement metadata authorization request including at least one of the title and the media player identification data; transmitting the enhancement metadata authorization request to an authorization server; receiving a response including an enhancement metadata authorization decision; and depending on the enhancement metadata authorization decision, playing only a base layer media content stored on the media disc or playing the base layer media content in conjunction with enhancement metadata comprising information establishing picture settings implementable by the media player and used during playback to render the base layer media content according to an existing high data dynamic range (HDR) profile. | 10. A computer-implemented method, comprising: receiving an enhancement metadata authorization request; parsing the enhancement metadata authorization request and determining at least one of a disc title and media player identification data from the enhancement metadata authorization request; determining whether the at least one of the disc title and the media player identification data is authorized for playback of media content in conjunction with enhancement metadata stored on a media disc identified by the disc title, the metadata comprising information establishing picture settings implementable by a media player identified by the media player identification data and used during playback to render the base layer media content according to an existing high dynamic range (HDR) profile; generating a response based on the determination; and transmitting the response to the media player from which the enhancement metadata authorization request was received. | 18. An apparatus, comprising: a processor; and a memory unit operatively connection to the processor, the memory unit including computer code configured to cause the processor: determine at least one of a title of a media disc and media player identification data regarding a media player in which the media disc is inserted; generate an enhancement metadata authorization request including at least one of the title and the media player identification data; transmit the enhancement metadata authorization request to an authorization server; receive a response including an enhancement metadata authorization decision; and depending on the enhancement metadata authorization decision, play only a base layer media content stored on the media disc or playing the base layer media content in conjunction with enhancement metadata comprising information establishing picture settings implementable by the media player and used during playback to render the base layer media content according to an existing high dynamic range (HDR) profile.