| MPEG-4视频泵中Transcoding机制与实现 |
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| 引用本文： | 鲁书喜.MPEG-4视频泵中Transcoding机制与实现[J].计算机工程,2004,30(20):157-158,176. |
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| 作者姓名： | 鲁书喜 |
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| 作者单位： | 平顶山师专计算机系,平顶山,467002 |
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| 摘 要： | 视频泵技术是视频服务器设计中的关键技术之一。MPEG-4视频泵的Transcoding(转换编码)机制是指在视频服务过程中，将用户请求的其它格式的视频数据实时地转换为MPEG-4视频格式。该文在MPEG-4标准的技术框架下，对MPEG-4视频泵功能进行了扩充设计，使其具有Transcoding功能，并只在首次点播服务时实现转换编码和存储。具有Transcoding功能的MPEG-4视频泵在视频服务器中的应用，是实现MPEG-4视频服务的技术核心之一。
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| 关 键 词： | 视频服务器 视频泵 数据格式 编码器 解码器 |
| 文章编号： | 1000-3428(2004)20-0157-02 |
Mechanism and Implementation of Transcoding in MPEG-4 Video Pump |
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| LU Shuxi.Mechanism and Implementation of Transcoding in MPEG-4 Video Pump[J].Computer Engineering,2004,30(20):157-158,176. |
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| Authors: | LU Shuxi |
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| Abstract: | Viedo pump is one of the core technologies which are applied in the design of video servers. The Transcodeing mechanism of MPEG-4 video pump is described that it can transfer the data requested by users into MPEG-4 data format from others by real-time mode. This paper provides a design in the standard framework of MPEG-4 which extends the functions of MPEG-4 video pump to support the Transcodeing and achieve Transcoding and saving only in the first VoD service. The application of MPEG-4 viedo pump with Transcoding in the video server is regarded as the key one of core technologies of MPEG-4 video service. |
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| Keywords: | Video server Video pump Data format Encoder Decoder |
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