/// <summary>
 /// Write <paramref name="frames"/> from the <paramref name="buffer"/> into the audio <paramref name="sndfile"/>.
 /// </summary>
 /// <param name="sndfile">Audio file to write to.</param>
 /// <param name="buffer">Buffer to write from.</param>
 /// <param name="frames">Number of frames to read from the <paramref name="buffer"/>.</param>
 /// <returns>Returns the number of frames written. Should be equal to <paramref name="frames"/> unless
 /// you've reached EOF.</returns>
 public long WriteFrames(IntPtr sndfile, float[] buffer, long frames)
 {
     return(LibsndfileApiNative.sf_writef_float(sndfile, buffer, frames));
 }