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qyz777 avatar qyz777 commented on June 17, 2024

在编辑页面或者导出后拖拽播放视频。比如当前是 3.5 秒，拖拽后点击播放会从 3.4 秒的位置开始播放，会出现一个抖动的效果。
会不会和视频合成的格式这些有关系？

由于seek操作是通过改造了GPUImage2实现的，因此这个seek后抖动是因为GPUImage的seek方法实现的有问题。推测是由于拖动使seek队列堆积了太多的帧未处理，导致seek后播放会出现画面抖动的效果。具体实现在https://github.com/qyz777/GPUImage2/blob/master/framework/Source/iOS/MovieInput.swift 中，可以改造一下seek的逻辑，在播放前丢弃队列中进入的未处理的帧，来避免这个问题。

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huanglins avatar huanglins commented on June 17, 2024

导出的视频也会存在这样的问题，不知道是不是合成的视频内容里面有丢帧或者其他的情况，拖拽后重新播放就会先回退 0.1 秒再播放

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qyz777 avatar qyz777 commented on June 17, 2024

导出的视频也会存在这样的问题，不知道是不是合成的视频内容里面有丢帧或者其他的情况，拖拽后重新播放就会先回退 0.1 秒再播放

合成后还有问题看起来应该是视频连接的时候有bug

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