Google Inc.

Kyle Kakligian

David Marwood

Stephen Lacy

Christopher Bentzel

Lei Zheng

Christopher Dylan Bentzel

A system and method provide server side support for seamless, scalable rewind and playback of a video stream. A video stream is stored and indexed in a network storage place. A video stream can be indexed at frame level where each intra frame of the video stream has an index indicating the file offset and the time stamp of the intra frame in the video stream. A user request for rewinding of a video stream while the video stream is being broadcast is processed by extracting the rewinding time requirement from the user request. The extracted rewinding time value is used to calculate the requested file offset. The video stream starting at the requested time is retrieved and played back according to the user request. The system also provides server side support for seamless rewinding of a video stream and scalable system performance across multiple streaming data centers.

Server-side support for seamless rewind and playback of video streaming

An embodiment for reusing data in content files includes receiving a request for a content file and retrieving a recipe that includes a series of instructions needed to compose the content file. Data identified by the recipe may then be retrieved from a content file server and the requested content file is composed based on the set of instructions in the recipe. In an example, the recipe is processed by a recipe player to compose a content file. In another embodiment, content files are stored in a cache as a series of instructions for generating them from portions of other content files. In this way, performance in a content delivery network may be improved by reusing similar data in content files.

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Sunnyvale, CA, United States of America

Kyle Kakligian