METHOD AND SYSTEM FOR ENABLING VIDEO TRICK MODES
    10.
    发明申请
    METHOD AND SYSTEM FOR ENABLING VIDEO TRICK MODES 审中-公开
    用于实现视频跟踪模式的方法和系统

    公开(公告)号:US20090257508A1

    公开(公告)日:2009-10-15

    申请号:US12400250

    申请日:2009-03-09

    IPC分类号: H04N7/12

    CPC分类号: H04N5/783

    摘要: A video processing system is operable to perform one or more display queue trick (DQT) operations utilizing decoded frames queued in memory. The decoded frames are generated from the start of random access points (RAPs) in frame segments in an encoded video stream. Location of RAPs may be determined during decoding of the encoded video stream. Exemplary encoding scheme comprise MPEG, AVC and/or VC1. The DQT modes include forward and/or reverse display modes. The used frames are selected based on determination of DQT mode parameters, queuing limitations and/or frame properties of selected and/or unselected frames in the frame segments. Frame properties comprise frame discardability and/or display inter-frame dependencies between selected and/or unselected frames. The video processing system is operable to jump to preceding and/or subsequent RAPs during DQT mode operations. The video processing system is also operable to skip one or more RAPs during such jumps.

    摘要翻译: 视频处理系统可操作以利用在存储器中排队的解码帧来执行一个或多个显示队列特技(DQT)操作。 经编码的视频流中的帧段中的随机接入点(RAP)的开始生成解码的帧。 可以在编码视频流的解码期间确定RAP的位置。 示例性编码方案包括MPEG,AVC和/或VC1。 DQT模式包括正向和/或反向显示模式。 所使用的帧是基于帧段中所选择和/或未选帧的DQT模式参数,排队限制和/或帧属性的确定来选择的。 帧属性包括帧选择和/或未选帧之间的帧可丢弃性和/或显示帧间相关性。 视频处理系统可操作以在DQT模式操作期间跳转到先前和/或后续RAP。 视频处理系统还可操作以在这样的跳跃期间跳过一个或多个RAP。