×

Apparatus and methods for presentation of key frames in encrypted content

  • US 10,652,594 B2
  • Filed: 07/07/2016
  • Issued: 05/12/2020
  • Est. Priority Date: 07/07/2016
  • Status: Active Grant
First Claim
Patent Images

1. Computer readable apparatus comprising a non-transitory storage medium, the non-transitory medium comprising at least one computer program having a plurality of instructions, the plurality of instructions configured to, when executed on a digital processing apparatus, cause a computerized packager apparatus to:

  • receive a digitally rendered video file for use with adaptive bitrate streaming, the digitally rendered video file comprising one or more key frames;

    generate manifest data for the digitally rendered video file, the manifest data comprising a listing of byte information for the one or more key frames;

    provide the manifest data for delivery to a computerized client device;

    receive data representative of a request for trick play mode operation, the request comprising data indicative of a key frame of the one or more key frames, a byte offset, and a number of bytes of the key frame;

    retrieve a portion of the digitally rendered video file referenced by the byte offset and the number of bytes included in the request;

    decrypt the retrieved portion of the digitally rendered video file, the retrieved portion of the digitally rendered video file comprising the key frame and a plurality of key frames immediately preceding and immediately following the key frame; and

    transmit the decrypted portion of the digitally rendered video file to the computerized client device;

    wherein the computerized packager apparatus is disposed at a headend of a content delivery network, the headend being upstream from the computerized client device.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×