关于AVAssetWriter,AVAssetWriterInput报错Cannot call method when status is 2的问题记录

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首先,最好把他们放在线程里去执行,而写顺序应该是

[self.writerInput markAsFinished];[self.videoWriter finishWriting];

其次,如果每次想在重新写一个视频的时候,那么你就要重新init一下AVAssetWriter,AVAssetWriterInput,否则就会报错Cannot call method when status is 2

参考文章:AVAssetWriter multiple sessions and the status property

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