Track at the fragment level using load information

Quality of service (QoS) offers a detailed view into how the video engine is performing. TVSDK provides detailed statistics about playback, buffering, and devices.

TVSDK also provides information about the following downloaded resources:

1. Playlist/manifest files

2. File fragments

3. Tracking information for files

   You can read quality of service (QoS) information about downloaded resources, such as fragments and tracks, from the LoadInfo class.

4. Implement the onLoadInfo callback event listener.

5. Register the event listener, which TVSDK calls every time a fragment has downloaded.

6. Read the data of interest from the LoadInfo parameter that is passed to the callback.

   Property	Type	Description
   downloadDuration	long	The duration of the download in milliseconds. TVSDK does not differentiate between the time it took the client to connect to the server and the time it took to download the full fragment. For example, if a 10 MB segment takes 8 seconds to download, TVSDK provides that information, but does not tell you that it took 4 seconds until the first byte and another 4 seconds to download the entire fragment.
   mediaDuration	long	The media duration of the downloaded fragments in milliseconds.
   periodIndex	int	The timeline period index associated with the downloaded resource.
   size	long	The size of the downloaded resource in bytes.
   trackIndex	int	The index of the corresponding track, if known; otherwise, 0.
   trackName	String	The name of the corresponding track, if known; otherwise, null.
   trackType	String	The type of the corresponding track, if known; otherwise, null.
   type	String	What TVSDK downloaded. One of the following: MANIFEST - A playlist/manifest FRAGMENT - A fragment TRACK - A fragment associated with a specific track Sometimes it might not be possible to detect the type of the resource. If this occurs, FILE is returned.
   url	String	The URL that points to the downloaded resource.

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