imports.cs

// CTL_out

#if UNITY_ANDROID || UNITY_LINUX

    // Fake the new symbol in C#
    internal static int dissonance_opus_encoder_ctl_out(IntPtr st, Ctl request, out int value)
    {
        opus_encoder_ctl(st, request, out value);
    }

    // Import the old symbol
    [DllImport("opus", CallingConvention = CallingConvention.Cdecl)]
    internal static extern int opus_encoder_ctl(IntPtr st, Ctl request, out int value);

#else

    #if UNITY_IOS && !UNITY_EDITOR
        [DllImport("__Internal", CallingConvention = CallingConvention.Cdecl)]	
    #else
        [DllImport("opus", CallingConvention = CallingConvention.Cdecl)]
    #endif
    internal static extern int dissonance_opus_encoder_ctl_out(IntPtr st, Ctl request, out int value);

#endif

// CTL_in

#if UNITY_ANDROID || UNITY_LINUX

    // Fake the new symbol in C#
    internal static int dissonance_opus_encoder_ctl_in(IntPtr st, Ctl request, int value)
    {
        opus_encoder_ctl(st, request, out value);
    }

    // Import the old symbol
    [DllImport("opus", CallingConvention = CallingConvention.Cdecl)]
    internal static extern int opus_encoder_ctl(IntPtr st, Ctl request, int value);

#else

    #if UNITY_IOS && !UNITY_EDITOR
        [DllImport("__Internal", CallingConvention = CallingConvention.Cdecl)]	
    #else
        [DllImport("opus", CallingConvention = CallingConvention.Cdecl)]
    #endif
    internal static extern int dissonance_opus_encoder_ctl_in(IntPtr st, Ctl request, int value);

#endif