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    • 42. 发明公开
    • Electronic apparatus and index generation method
    • Elektronische Vorrichtung und Indexerzeugungsverfahren
    • EP2621190A1
    • 2013-07-31
    • EP12180976.8
    • 2012-08-20
    • Kabushiki Kaisha Toshiba
    • Ohashi, Jun
    • H04N21/845H04N21/433H04N21/44H04N21/4402H04N21/434H04N21/472G11B27/10
    • H04N21/8455G11B27/105G11B27/322H04N21/41407H04N21/4332H04N21/4345H04N21/4402H04N21/47217
    • An electronic apparatus (202) is configred to receive a first packet group of a stream of content data comprising one or more programs from a server (21). The apparatus includes a first detector (43), a second detector (44) and an index generator (45). The first detector (43) detects a first packet of the first packet group, the first packet including program information. The second detector (44) detects the start packet of a second packet group within the first packet group, the second packet group carrying a randomly accessible video frame. The second detector (44) detects the presentation time stamp of the randomly accessible video frame from the start packet or another packet having the same packet ID. The index generator (45) generates index information indicating the storage position of the first packet in the buffer (42) and indicating the presentation time stamp of the randomly accessible video frame.
    • 电子设备(202)被配置为从服务器(21)接收包括一个或多个节目的内容数据流的第一分组组。 该装置包括第一检测器(43),第二检测器(44)和索引发生器(45)。 第一检测器(43)检测第一分组组的第一分组,第一分组包括节目信息。 第二检测器(44)检测第一分组组内的第二分组组的起始分组,第二分组组携带随机可访问的视频帧。 第二检测器(44)从起始分组或具有相同分组ID的另一个分组检测随机访问的视频帧的呈现时间戳。 索引生成器(45)生成指示缓冲器(42)中的第一分组的存储位置的索引信息,并指示随机访问的视频帧的呈现时间戳。