System and method for providing a variable frame rate and adaptive frame skipping on a mobile device
    1.
    发明授权
    System and method for providing a variable frame rate and adaptive frame skipping on a mobile device 有权
    用于在移动设备上提供可变帧率和自适应跳帧的系统和方法

    公开(公告)号:US08279946B2

    公开(公告)日:2012-10-02

    申请号:US11944549

    申请日:2007-11-23

    IPC分类号: H04N7/12

    摘要: A processor and method are provided for decoding a multimedia file having video and audio data streams that are configured to be played in synchronization. Frames of the video stream are decoded and played with the audio and, to compensate for saturation of the processor usage, two procedures are performed. The first procedure operates at a first periodic interval and slows down the frame rate to reduce processor usage if needed. The second procedure first attempts to speed up the video to catch up to the audio if they are out of sync and if this cannot be done in the next time interval, the decoding of a select number of frames is skipped such that the video and audio data streams are resynchronized.

    摘要翻译: 提供了一种处理器和方法,用于对配置成同步播放的具有视频和音频数据流的多媒体文件进行解码。 视频流的帧被解码并用音频播放,并且为了补偿处理器使用的饱和度,执行两个过程。 第一个过程以第一个周期性的时间间隔运行,如果需要,可以减慢帧速率以减少处理器的使用。 第二程序首先尝试加速视频以赶上音频,如果它们不同步,并且如果这在下一时间间隔不能完成,则跳过选择帧数的解码,使得视频和音频 数据流被重新同步。