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I need to write an app that allows to change the bitrate of mp3-files. I read the file, convert it to PCM and convert it back to mp3 with a different bitrate (sometimes I have to do a PCM-PCM-conversion if the sample-rate changes).<br />
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The only problem: I'm not able to detect the source-format (bitrate) of the mp3-source-file. How can I do this?<br />
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I'm working with ACM and I have to specify the source-format when calling acmStreamOpen.
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I need to write an app that allows to change the bitrate of mp3-files. I read the file, convert it to PCM and convert it back to mp3 with a different bitrate (sometimes I have to do a PCM-PCM-conversion if the sample-rate changes).

The only problem: I'm not able to detect the source-format (bitrate) of the mp3-source-file. How can I do this?

I'm working with ACM and I have to specify the source-format when calling acmStreamOpen.

Detection of mp3-bitrate (format)

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