公开(公告)号：US08090718B2

公开(公告)日：2012-01-03

申请号：US12105115

申请日：2008-04-17

Applicant: Weimin Xu

Inventor： Weimin Xu

IPC: G06F7/00 ,  G06F17/30

CPC classification number: G06F17/30017 ,  Y10S707/913

Abstract: A multimedia player application is adapted to process multimedia data of one or more multimedia files (e.g. MPEG-4 files) to produce multimedia output data at an audio/video output device. A file allocation table (FAT) system is adapted to manage storage of these multimedia files. An interface process is adapted to maintain a current address pointer for a current position in a multimedia file being played, a backward seek address pointer for a preceding position in the multimedia file between the current position and the beginning of the multimedia file, and an index table address pointer for an index table of the multimedia file. The current and backward seek address pointers are regularly updated while the multimedia file is being played, and the backward seek address pointer is updated as a function of the current address pointer. Advantageously, backward seek times for backward seeks in the multimedia file are reduced.

Abstract translation: 多媒体播放器应用适于处理一个或多个多媒体文件（例如MPEG-4文件）的多媒体数据，以在音频/视频输出设备处产生多媒体输出数据。 文件分配表（FAT）系统适于管理这些多媒体文件的存储。 接口处理适于维持正在播放的多媒体文件中的当前位置的当前地址指针，用于多媒体文件中当前位置和多媒体文件的开头之间的前一位置的后向寻找地址指针，以及索引 表地址指针，用于多媒体文件的索引表。 在播放多媒体文件的同时，定期更新当前和后向寻道地址指针，并根据当前地址指针更新后向寻道地址指针。 有利的是，减少多媒体文件中的后向搜索的后向搜索时间。

公开(公告)号：US20090265384A1

公开(公告)日：2009-10-22

申请号：US12105115

申请日：2008-04-17

Applicant: Weimin Xu

Inventor： Weimin Xu

IPC: G06F17/30

CPC classification number: G06F17/30017 ,  Y10S707/913

Abstract: A multimedia player application is adapted to process multimedia data of one or more multimedia files (e.g. MPEG-4 files) to produce multimedia output data at an audio/video output device. A file allocation table (FAT) system is adapted to manage storage of these multimedia files. An interface process is adapted to maintain a current address pointer for a current position in a multimedia file being played, a backward seek address pointer for a preceding position in the multimedia file between the current position and the beginning of the multimedia file, and an index table address pointer for an index table of the multimedia file. The current and backward seek address pointers are regularly updated while the multimedia file is being played, and the backward seek address pointer is updated as a function of the current address pointer. Advantageously, backward seek times for backward seeks in the multimedia file are reduced.

Abstract translation: 多媒体播放器应用适于处理一个或多个多媒体文件（例如MPEG-4文件）的多媒体数据，以在音频/视频输出设备处产生多媒体输出数据。 文件分配表（FAT）系统适于管理这些多媒体文件的存储。 接口处理适于维持正在播放的多媒体文件中的当前位置的当前地址指针，用于多媒体文件中当前位置和多媒体文件的开头之间的前一位置的后向寻找地址指针，以及索引 表地址指针，用于多媒体文件的索引表。 在播放多媒体文件的同时，定期更新当前和后向寻道地址指针，并根据当前地址指针更新后向寻道地址指针。 有利的是，减少多媒体文件中的后向搜索的后向搜索时间。