Method and System for Trick Play in Over-the-Top Video Delivery

摘要

A method for trick play (fast forward, rewind, etc.) in video streams using adaptive bitrate HTTP delivery protocols includes playing only portions of a video at a current bitrate to achieve the initial trick play functionality. A new trick play bitrate is selected based on a trick play playout rate, the trick play bitrate for the duration of the trick play is retrieved, and operation is switched back to a previous bitrate when normal playback resumes. A system is also specified for implementing a client and server infrastructure in accordance with the method.

主权项

1. A method for distributing audio/video content to a diverse set of mobile client devices, the content being organized as a series of frames including independently renderable key frames and corresponding groups of dependently rendered non-key frames, comprising;
transforming the content to create transformed content usable by the client devices for normal playback rendering in a forward direction at a normal playback rate; creating one or more custom versions of the transformed content not usable for normal playback rendering and specifically tailored for trick play rendering in a reverse direction and/or at a modified playback rate different from the normal playback rate; and providing the custom versions of the transformed content to a content delivery network for use in satisfying requests for trick play playback of the content from client devices.