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author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-24 18:02:37 -0400 |
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committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-24 21:36:25 -0400 |
commit | 72d89fd7f93e9ac6d1fbd4aac762a959217b6230 (patch) | |
tree | fd2e5e2d074ded719d0b81ebf4333be53de00358 | |
parent | 84043f7cf7e00351264ee97d85333fa9a3fc8f97 (diff) | |
download | opus-72d89fd7f93e9ac6d1fbd4aac762a959217b6230.tar.gz |
Fixes cap on gain in denormalise_bands()
-rw-r--r-- | celt/bands.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/celt/bands.c b/celt/bands.c index 61e2d4ca..90ac6a22 100644 --- a/celt/bands.c +++ b/celt/bands.c @@ -241,10 +241,10 @@ void denormalise_bands(const CELTMode *m, const celt_norm * OPUS_RESTRICT X, /* Handle extreme gains with negative shift. */ if (shift<0) { - /* For shift < -2 we'd be likely to overflow, so we're capping - the gain here. This shouldn't happen unless the bitstream is - already corrupted. */ - if (shift < -2) + /* For shift <= -2 and g > 16384 we'd be likely to overflow, so we're + capping the gain here, which is equivalent to a cap of 18 on lg. + This shouldn't trigger unless the bitstream is already corrupted. */ + if (shift <= -2) { g = 16384; shift = -2; |