Whether the bitrates should be interpolated linearly or logarithmically. A logarithmic interpolation better reflects human perception as it considers switches across lower qualities to be more visible than switches among higher qualities.
Default value is 'log'.
This is the δ (delta) parameter of WISH. It indicates the capability to deliver a certain bitrate (δ > 0). i.e. how much the throughput should be, compared to the selected bitrate.
Default value is 1. A value larger than 1 will make the logic more conservative.
The ξ (xi) parameter of WISH indicates the proportion of filled buffer (0 < ξ <= 1). i.e. the amount of buffer the player will try to maintain.
Default value is 0.8. A value of 1 means that the buffer needs to be full in order to consider switching to a higher quality.
This config option allows to temporarily disable WISH during startup phase and seeking, in favor of a purely rate-based quality selection.
By design WISH always selects the lowest quality when buffer is empty, which may not be ideal on seeking.
Default value is false.
Configuration options for WISH ABR logic.
You can enable the logic by setting logic to WISH.