Provides both information about a sample and the track it belongs to.

AdaptiveTrackInfo is an abstract class that extends TrackInfo to support multiple decoder configurations (adaptations). It also inherits from IAdjustableBitrate so that adaptations can be selected and activated. This class forms the basis for adaptive streaming technologies such as multi-bitrate webM/MKV or Microsoft Smooth Streaming.

ExtendedTrackInfo helps simplify access to Bitrate and DecoderSpecificData.

A managed representation of the multimedia WAVEFORMATEX structure declared in mmreg.h.

Interface for adjustable bitrate class.