shithub: opus

Download patch

ref: 59b1a521f4909f959e6968c14dc7e618d0df461b
parent: 475fa4a98c7f4be57e507f55a37ef3fce79692a6
author: Jean-Marc Valin <jmvalin@jmvalin.ca>
date: Tue Feb 20 20:33:59 EST 2018

Increasing the CELT bit allocation slightly for stereo hybrid

Fixes a "regression" from 1.2 to 1.3-beta that was especially noticeable
on a Korean speech sample. (it wasn't a real regression since 1.2 only
worked because it was using CELT)

--- a/src/opus_encoder.c

+++ b/src/opus_encoder.c

@@ -816,7 +816,7 @@

    silk_rate *= channels;

    /* The CELT layer saves a bit more than SILK for stereo, so we boost SILK. */

    if (channels == 2 && rate >= 12000)

-      silk_rate += 1000;

+      silk_rate -= 1000;

    return silk_rate;

 }