Source Description API
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                  The See moreSourceDescriptionobject is used to describe a configuration of a source for a THEOplayer instance.DeclarationSwift @objc(THEOplayerSourceDescription) public class SourceDescription : NSObject, Codable
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                  The TypedSourceobject provides the following properties:See moreRemark - This represents a media resource characterized by a URL to the resource and optionally information about the resource.
- This optional information can be DRM parameters for that specific source.
 DeclarationSwift @objc(THEOplayerTypedSource) open class TypedSource : NSObject, Codable
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                  A TextTrackDescription object contains a description of a side-loaded text track that will be added to the player. See moreRemark MP4/3 streams only support VTT formatted text tracks. AirPlay is not supported with MP4/3 streams.DeclarationSwift @objc(THEOplayerTextTrackDescription) open class TextTrackDescription : NSObject, Codable
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                  The MetadataDescription object is used to describe content. See moreDeclarationSwift @objc(THEOplayerMetadataDescription) public class MetadataDescription : NSObject, Codable
 Source Description API  Reference
      Source Description API  Reference