"如何使用 AVAssetWriter 导出 mp3 文件"

Question

I'm trying to export my asset as an .mp3 file using AVAssetWriter .

Here's how I create an instance of it:

writer = try! AVAssetWriter(url: outputURL,
                            fileType: AVFileType.mp3)

Unfortunately, it throws the error:

[AVAssetWriter initWithURL:fileType:error:] Invalid file type UTI.

Available file types are: com.scenarist.closed-caption, org.w3.webvtt, public.aiff-audio, com.apple.m4v-video, org.3gpp.adaptive-multi-rate-audio, com.apple.m4a-audio, com.microsoft.waveform-audio, com.apple.coreaudio-format, public.mpeg-4, com.apple.itunes-timed-text, com.apple.quicktime-movie, public.aifc-audio

I'm running this code on macOS 10.15. I find it hard to believe that there's no support for exporting an mp3 file. Can anyone guide me on how to make it work?

Answer 1

I find it hard to believe that there's no support for exporting an mp3 file

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