Static kCMFormatDescriptionExtension_OriginalCompressionSettings 

pub unsafe static kCMFormatDescriptionExtension_OriginalCompressionSettings: &'static CFString

Available on crate feature CMFormatDescription only.

kCMFormatDescriptionExtension_OriginalCompressionSettings

This extension contains a media-type-specific dictionary of settings used to produce a compressed media buffer.

This extension is valid for format descriptions of all media types, but the contents of the dictionary are defined in a media-specific way. The dictionary and its contents are valid property list objects. This means that dictionary keys are all CFStrings, and the values are all either CFNumber, CFString, CFBoolean, CFArray, CFDictionary, CFDate, or CFData.

See also Apple’s documentation