Video data playback system using effective scheme for producing coded
video data for fast playback mode
    1.
    发明授权
    Video data playback system using effective scheme for producing coded video data for fast playback mode 失效
    视频数据播放系统使用有效的方案来产生用于快速重放模式的编码视频数据

    公开(公告)号:US5887110A

    公开(公告)日:1999-03-23

    申请号:US623172

    申请日:1996-03-28

    摘要: A video data playback system for reproducing requested video data by switching coded video data to be reproduced between normal playback coded video data and fast playback coded video data according to a requested playback mode, where the normal playback coded video data are encoded by a first video coding scheme using both intra-frame coding and inter-frame coding, while the fast playback coded video data are encoded by a second video coding scheme using only intra-frame coding and having a playback bit rate and a frame rate identical to those of the normal playback coded video data. The normal playback coded video data can be obtained by encoding the original video data first, then the fast playback coded video data can be obtained by encoding selectively decoded normal playback coded video data. Alternatively, the normal and fast playback coded video data can be obtained by synchronizing start and end of encoding by the first video coding scheme and encoding by the second video coding scheme.

    摘要翻译: 一种视频数据播放系统,用于根据请求的播放模式切换要在正常重放编码视频数据和快速重放编码视频数据之间再现的编码视频数据,再现所请求的视频数据,其中正常重放编码视频数据由第一视频 使用帧内编码和帧间编码的编码方案,而快速重放编码的视频数据由仅使用帧内编码的第二视频编码方案编码,并且具有与帧内编码相同的重放比特率 正常重放编码的视频数据。 可以通过首先对原始视频数据进行编码来获得正常重放编码视频数据,然后通过对选择性地解码的普通重放编码视频数据进行编码来获得快速重放编码视频数据。 或者,正常和快速重放编码的视频数据可以通过使第一视频编码方案的编码开始和结束同步并通过第二视频编码方案的编码来获得。