AVMetadataID3MetadataKeyRelativeVolumeAdjustment2

objc2_av_foundation

Static AVMetadataID3MetadataKeyRelativeVolumeAdjustment2 

Source 
pub unsafe static AVMetadataID3MetadataKeyRelativeVolumeAdjustment2: Option<&'static AVMetadataKey>
Available on crate feature AVMetadataFormat only.
Expand description

Apple’s documentation