tree ac696f53dfb90041b9f8ee1efffaae4a3c56a1e5
parent 05fc9fa66f372dc766e672f5266ccf7ddad2d322
author chiyotsai <chiyotsai@google.com> 1570818255 -0700
committer Chi Yo Tsai <chiyotsai@google.com> 1570838721 +0000

Fix an offset in prune_compound_using_single_ref

Currently prune_compound_using_single_ref starts pruning when the mode
index is MAX_SINGLE_REF_MODES + 1. But MAX_SINGLE_REF_MODES is already
the first none single_ref, so we can start pruning when mode index is
MAX_SINGLE_REF_MODES.

There is a small bitrate reduction (~0.01~0.02%) and the speed remains
more or less neutral.

STATS_CHANGED

Change-Id: If94368e21d62c275efcee3f2a7e923e1810a55e4