公开(公告)号：WO2017015284A1

公开(公告)日：2017-01-26

申请号：PCT/US2016/042964

申请日：2016-07-19

Applicant: ARRIS ENTERPRISES LLC

Inventor： GOPALAKRISHAN, Veera ,  ARUNKUMAR, Lakshmi ,  SUBBARAYAN, Subash ,  SINGH, Virendra ,  BABBURI, Rajasekhar

IPC: G11B27/32

CPC classification number: G11B27/327 ,  G11B27/005 ,  G11B27/329

Abstract: Methods, systems, and computer readable media described herein may facilitate the detection and use of stitch points during trickplay navigation of a content stream. A multimedia device may automatically detect stitch points in a transport stream based upon PTS (presentation time stamp) discontinuities. The multimedia device may generate a slot table that organizes the frames of a piece of content into segments having sequential or linear PTS values. The multimedia device may compare a target PTS to the various PTS ranges of the slot table to identify a region to be searched for a metadata index associated with the target PTS. Once the target PTS is mapped to the appropriate metadata index, the multimedia device may fetch the appropriate frame for presentation.

Abstract translation: 本文描述的方法，系统和计算机可读介质可以有助于在内容流的特技播放导航期间检测和使用缝合点。 多媒体设备可以基于PTS（呈现时间戳）不连续性自动检测传输流中的针迹点。 多媒体设备可以生成将一段内容的帧组织成具有顺序或线性PTS值的段的时隙表。 多媒体设备可以将目标PTS与时隙表的各种PTS范围进行比较，以识别要搜索与目标PTS相关联的元数据索引的区域。 一旦将目标PTS映射到适当的元数据索引，多媒体设备可以获取适当的帧以进行呈现。