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    • 1. 发明公开
    • METHODS OF IMPLEMENTING MULTI MODE TRICKPLAY
    • 实现多模式特技的方法
    • EP3172901A1
    • 2017-05-31
    • EP15719544.7
    • 2015-04-09
    • ARRIS Enterprises LLC
    • PANJE, Krishna PrasadFRANKS, William P.SAHASRANAMAN, Murali
    • H04N21/845H04N21/262H04N21/6587H04N21/643
    • H04N21/8456H04N21/26258H04N21/64322H04N21/6587H04N21/8455
    • A method of operating a server and an IP client device for presentation of video content to a viewer that includes a trickplay function. The server partitions media chunks into several sub chunks and includes information about the sub chunks in a manifest. The client plays the needed sub chunks to implement a desired play rate. As an alternative to providing sub chunk information in the manifest, the server sends key frame information in the manifest. The client plays needed frames of the key frames to implement a desired play rate. The sub chunk information as well as key frame information is encoded into the manifest as a standard comment or chunk filename. In another alternative, the IP client sends a trickplay request and based on that, the server signals either the sub chunks to be played or the key frames to be played to affect the desired speed. In yet another variation, the server can also remove the unwanted sub chunks or key frames to affect the desired play rate at the IP client.
    • 一种操作服务器和IP客户端设备的方法,用于向包括特效播放功能的观看者呈现视频内容。 服务器将媒体块分区为多个子块,并在清单中包含有关子块的信息。 客户端播放所需的子块以实现所需的播放速率。 作为在清单中提供子块信息的替代方法,服务器在清单中发送关键帧信息。 客户端播放关键帧的所需帧以实现期望的播放速率。 子块信息以及关键帧信息作为标准注释或块文件名被编码到清单中。 在另一种替代方案中,IP客户端发送特技播放请求,并且基于此,服务器发信号通知要播放的子组块或要播放的关键帧以影响期望的速度。 在又一变化中,服务器还可以移除不需要的子组块或关键帧以影响IP客户端处的期望播放速率。