AudioFileGetPropertyInfo

objc2_audio_toolbox

Function AudioFileGetPropertyInfo 

Source 
pub unsafe extern "C-unwind" fn AudioFileGetPropertyInfo(
    in_audio_file: AudioFileID,
    in_property_id: AudioFilePropertyID,
    out_data_size: *mut u32,
    is_writable: *mut u32,
) -> i32
Available on crate feature AudioFile only.
Expand description

Get information about the size of a property of an AudioFile and whether it can be set.

Parameter inAudioFile: an AudioFileID.

Parameter inPropertyID: an AudioFileProperty constant.

Parameter outDataSize: the size in bytes of the current value of the property. In order to get the property value, you will need a buffer of this size.

Parameter isWritable: will be set to 1 if writable, or 0 if read only.

Returns: returns noErr if successful.

ยงSafety

  • in_audio_file must be a valid pointer.
  • out_data_size must be a valid pointer or null.
  • is_writable must be a valid pointer or null.