diff options
Diffstat (limited to 'src/lib/util.cc')
| -rw-r--r-- | src/lib/util.cc | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/lib/util.cc b/src/lib/util.cc index bbb444367..e4f552c4d 100644 --- a/src/lib/util.cc +++ b/src/lib/util.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net> + Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net> This file is part of DCP-o-matic. @@ -1171,3 +1171,16 @@ write_swaroop_chain (shared_ptr<const dcp::CertificateChain> chain, boost::files } #endif + +double +db_to_linear (double db) +{ + return pow(10, db / 20); +} + +double +linear_to_db (double linear) +{ + return 20 * log10(linear); +} + |