How to get sample rate from wav file?

Question

I am using oboe lib for sound playback

https://github.com/google/oboe/blob/master/docs/FullGuide.md

as a sound file I am using .wav file. As far as I know there is a way to get from .wav file header - sample rate.

So, question is - how to pro grammatically in C++ read the sample rate from an arbitrary .wav file?

Answer 1

There is no standard functionality in C++ for parsing wav files.

The bytes at indices 24-27 of the header represent a 32 bit integer that is the sample rate in Hz.

Answer 2

If you want to write your own WAV parser, perhaps look at this question (note one error in the code which is corrected in my answer): printing of a wav header in c

But probably it is more convenient to use a library. For instance, libsndfile has an API sf_open that returns an SF_INFO struct, that includes the sample rate.