QTMovie class is used to manage the "modernization" of legacy media.
- macOS 10.9+
QTMovie objects convert legacy media resources (defined as any media that is not supported by the
AVFoundation framework) into a format that AVFoundation classes can understand. This class exposes four methods, which can be used to determine whether a media resource needs to be modernized, to set up and configure a modernization object, and to perform or cancel the modernization operation.