Google Inc.

Andrew Scherkus

David Kimbal Dorwin

Christian Kaiser

Ryan David Sleevi

Aaron James Colwell

Stephen John Lacey

Francis William Galligan

Dillon Richard Cower

Christian L Duvivier

Riley Adams

Jeff Prouty

Rob Suderman

A method includes receiving a first video stream at a playback device, the first video stream having a first quality, receiving at least two second video streams at the playback device, the at least two second video streams each corresponding to a portion of the first video stream, the at least two second video streams having a second quality, the second quality being a higher quality as compared to the first quality, playing back the first video stream at the playback device, selecting a third video stream from the at least two second video streams based on a view perspective of a user of the playback device, and playing back the third video stream together with the first video stream at the playback device.

Streaming spherical video

A method, apparatus, and manufacture for content protection for protecting some objects is provided. A content protection operation or license operation is performed for at least one media object of a web application. Some or all of the objects are then marked as protected. When an operation is performed that accesses a protected object, a user agent determines whether to deny the operation, to allow the operation and mark data exported by the operation and objects storing the exported data as protected objects, or to allow the operation and not mark data exported by the operation and objects storing the exported data as protected objects.

Method and apparatus for protection of media objects including HTML

Embodiments are directed towards decrypting encrypted content. A key for decrypting the encrypted content may be provided to a web application executing within a browser. The application may employ a generic cryptography application program interface (GCAPI) to perform actions on the key, including, storing the key, decrypting an encrypted key, generating another key, converting the key to a different encryption type, or the like. The GCAPI may or may not be enabled to explicitly share the key with the browser's media engine. In response to receiving encrypted content, the GCAPI may provide the key to the application, explicitly or inexplicitly to the browser's media engine, or the like. The key may be utilized by the application, the browser, the media element, browser's media engine, and/or the GCAPI to decrypt the encrypted content. The decrypted content may be displayed within the browser to a user of a client device.

Use of generic (browser) encryption API to do key exchange (for media files and player)

A method, apparatus, and manufacture for configuring multiple content protection systems is provided. A client media player is employed to determine whether media content is protected. The client media player includes an application, and further includes a media engine that is a distinct program from the application. At least one type of content protection system supported by the media engine is determined. The application is employed to get a key and/or a license for the protected media content in accordance with the determined type of content protection system. The application is employed to instruct the media engine to play the media content. The key and/or the license for the determined type of content protection system is sent from the application to the media engine.

Method, manufacture, and apparatus for configuring multiple content protection systems

Method, manufacture, and apparatus for protection of media objects from the web application environment

A method, apparatus, and manufacture for content protection using authentication data. A client media player is employed to determine whether media content is protected. The client media player includes an application, and further includes a media engine that is a distinct program from the application. Upon determining that the media content is protected, the application is employed to get a key and/or a license for the protected media content such that authentication data is employed to authorize the client. The authentication data includes at least one of a software token or a cookie. The application is employed to instruct the media engine to play the media content. The key and/or the license is sent from the application to the media engine.

Method, manufacture, and apparatus for content protection using authentication data

A method, apparatus, and manufacture for content protection for HTML media elements is provided. A client media player is employed to determine whether media content is protected. The client media player includes an application, and further includes a media engine that is a distinct program from the application. Upon determining that the media content is protected, the application is employed to get a key and/or a license for the protected media content. The application is employed to instruct the media engine to play the media content. The key and/or the license is sent from the application to the media engine.

Method, manufacture, and apparatus for content protection for HTML media elements

A content protection query module (CPQM) dynamically queries content protection items supported on the client device. The CPQM automatically identifies content protection configurations, based on the results of the queries. Using a variety of business rules and policies, the CPQM may select a content protection configuration from the configurations for packaging and providing protected content to the client device. The CPQM may instruct the client device to expect the protected content in the selected configuration, thereby enabling the client device to configure itself, as appropriate, for such configuration. The client device may include a media player that selects based on the instructions which DRM module to employ, providing the DRM module with instructions regarding where to obtain decryption keys/licenses for the content, and even instructing the DRM module which decryption mechanism to employ to decrypt the received protected content.

Detecting supported digital rights management configurations on a client device

A system and method provides adaptively streaming a video over a content delivery network. A client sends a streaming request for a first portion of the video to a computer server, where the video has multiple video chunks, and each video chunk has one or more streaming parameters (e.g., priority and bitrate). The computer server retrieves the requested portion of the video and streams the first portion of the video over a content delivery network. The client monitors the video chunks received from the computer server and determines the video quality of the next portion of the video based on the monitoring. Responsive to the condition of the content delivery network being able to support streaming the next portion of the video with higher quality, the client updates the default video quality and requests the next portion of the video with the updated default video quality.

Adaptive video streaming over a content delivery network

Embodiments are directed towards enabling a portion of a protected content stream to be played in a degraded quality or experience at a client device when a key and/or license for some other portion of the content stream is unobtainable, or is not obtained by the client device. A content stream has a plurality of layers, with a baseline layer having a lowest quality level of the plurality of layers that is unencrypted, while at least one other layer is encrypted. When the key to decrypt the encrypted layer(s) is unobtained, at least the baseline unencrypted layer is allowed to still play at the client device.

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Seattle, WA, United States of America

Andrew Scherkus