Function ExtAudioFileOpenURL 

pub unsafe extern "C-unwind" fn ExtAudioFileOpenURL(
    in_url: &CFURL,
    out_ext_audio_file: NonNull<ExtAudioFileRef>,
) -> i32

Available on crate features ExtendedAudioFile and objc2-core-foundation only.

Opens an audio file specified by a CFURLRef.

Parameter inURL: The audio file to read.

Parameter outExtAudioFile: On exit, a newly-allocated ExtAudioFileRef.

Returns: An OSStatus error code.

Allocates a new ExtAudioFileRef, for reading an existing audio file.

Safety

out_ext_audio_file must be a valid pointer.