Playlist window

When the context input is a playlist, mm-renderer creates additional PPS objects in the context directory. These PPS objects specify the currently playing item and the items in front of and behind the current item, up to a preconfigured maximum; this information is collectively known as the playlist window.

The following PPS objects represent the playlist window:

Contains the track parameters for a playlist entry. There is one p# object for each playlist entry, where the # token is the position of the track in the playlist (starting from 1). Each such object contains the latest parameters passed into mmr_track_parameters() for the corresponding track.
Represents the size of the playlist window. The play-queue object has the following attributes:
The index of the first p# item in the window.
The index of the last p# item in the window.
The total number of items in the playlist; this is set whenever the full length of the playlist is known.
Note: If you seek to a track outside of the playlist window, the indexes of the first and last items may retain stale values for a short time after the seek command is issued. This is because these attributes are updated asynchronously.