Function sdl2_sys::SDL_BuildAudioCVT

pub unsafe extern "C" fn SDL_BuildAudioCVT(
    cvt: *mut SDL_AudioCVT, 
    src_format: SDL_AudioFormat, 
    src_channels: Uint8, 
    src_rate: c_int, 
    dst_format: SDL_AudioFormat, 
    dst_channels: Uint8, 
    dst_rate: c_int
) -> c_int

This function takes a source format and rate and a destination format and rate, and initializes the \c cvt structure with information needed by SDL_ConvertAudio() to convert a buffer of audio data from one format to the other.

\return -1 if the format conversion is not supported, 0 if there's no conversion needed, or 1 if the audio filter is set up.