Commit ef2e6505 authored by Committed by Jean-Marc ValinBrowse files
Add coarse energy entropy model tuning.
This tunes the entropy model for coarse energy introduced in commit c1c40a76. It uses a constant set of parameters, tuned from about an hour and a half of randomly selected test data encoded for each frame size, prediction type (inter/intra), and band number. These will be slightly sub-optimal for different frame sizes, but should be better than what we were using. For inter, this saves an average of 2.8, 5.2, 7.1, and 6.7 bits/frame for frame sizes of 120, 240, 480, and 960, respectively. For intra, this saves an average of 1.5, 3.0, 4.5, and 5.3 bits/frame (for the same frame sizes, respectively).