zzxxzz123

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![keyframe1](https://cloud.githubusercontent.com/assets/15125582/26384208/3c6a09e4-406a-11e7-93e4-c49372a4cfeb.jpg) ![keyframe2](https://cloud.githubusercontent.com/assets/15125582/26384211/3cc4adae-406a-11e7-9f60-454eee558624.jpg) ![keyframe3](https://cloud.githubusercontent.com/assets/15125582/26384210/3cc4a980-406a-11e7-9ec1-1041a57a7789.jpg) ![keyframe4](https://cloud.githubusercontent.com/assets/15125582/26384209/3cc471ae-406a-11e7-9a10-ce1686f1de9d.jpg) 这是我用mp4explorer获取的视频信息,30秒的视频长度可以看到有多个关键帧的,没有出现很少的情况呀,那为什么会出现这种情况呢