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1. 发明申请

WO2009115801A1 DIGITAL AUDIO AND VIDEO CLIP ENCODING 审中-公开
标题翻译：数字音频和视频剪辑编码
公开(公告)号：WO2009115801A1
公开(公告)日：2009-09-24
申请号：PCT/GB2009/000727
申请日：2009-03-18
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY , PALMER, Alex, Stephen, John , CAMERON, Ian, Ross
发明人： PALMER, Alex, Stephen, John , CAMERON, Ian, Ross
IPC分类号： G11B27/034
CPC分类号： G11B27/034
摘要： An encoded clip generator comprises an input interface (402) for receiving source raw audio/video data from a media source (30). The source data comprises a series of complete video frames and a corresponding series of audio frames. The generator also includes an editor interface for receiving a clip start position and a clip end position. The generator includes a processor (410) and a memory (420) containing instructions for controlling the operation of the processor (410). Included in the memory (420) is a selection module (422) for generating a raw audio/video clip comprising video frames and audio frames selected from the source data according to the received clip start and end positions to provide an unextended raw audio/video clip; an extension module (424) for extending the unextended raw video clip by adding additional video frames and additional audio frames; an encoding module (426) for encoding the extended raw video clip to form an encoded extended video clip; and a trimming module (428) for removing excess video and audio frames from the encoded extended video clip such that all of the desired video frames are included and such that the duration of the encoded audio stream is at least as long as the duration of the encoded video stream remaining.
摘要翻译：编码片段生成器包括用于从媒体源（30）接收源原始音频/视频数据的输入接口（402）。源数据包括一系列完整的视频帧和相应的一系列音频帧。发生器还包括用于接收剪辑开始位置和剪辑结束位置的编辑器界面。发生器包括处理器（410）和包含用于控制处理器（410）的操作的指令的存储器（420）。包括在存储器（420）中的是选择模块（422），用于根据接收到的剪辑开始和结束位置生成包括从源数据中选择的视频帧和音频帧的原始音频/视频剪辑，以提供未延伸的原始音频/视频夹; 扩展模块（424），用于通过添加附加视频帧和附加音频帧来扩展未延伸的原始视频剪辑; 编码模块（426），用于对扩展的原始视频剪辑进行编码以形成编码的扩展视频剪辑; 以及修剪模块（428），用于从编码的扩展视频剪辑中去除多余的视频和音频帧，使得包括所有所需的视频帧，并且使得编码的音频流的持续时间至少等于编码视频流剩余。

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