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如何把一组数据绘制到视频上 #2

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如何把一组数据绘制到视频上#2

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@nishibaiyang
nishibaiyang
opened on Dec 13, 2017

我通过Canvas canvas = surface.lockCanvas(dirty);获取一个canvas，我想在canvas把数据画上去，但是不行。请教下能怎么实现

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