错误如下:
exception type : NSInvalidArgumentException
crash reason : *** -[AVAssetWriter addInput:] In order to perform passthrough to file type public.mpeg-4, please provide a format hint in the AVAssetWriterInput initializer![](https://img.haomeiwen.com/i14458179/31e628f4f81bfc86.png)
解决方法
添加如下代码
GPUImageMovieWriter *movieWriter = ...
movieWriter.hasAudioTrack = YES;
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