Some const correctness.

[dcpomatic.git] / src / lib / gain.cc

diff --git a/src/lib/gain.cc b/src/lib/gain.cc
index df7011d2e8100a14e537234d9e6d6fb0e2fb8d57..ccd779d7154f1b9813fb8754ee67abacc19064cd 100644 (file)
--- a/src/lib/gain.cc
+++ b/src/lib/gain.cc
@@ -30,7 +30,7 @@ Gain::Gain (shared_ptr<Log> log, float gain)
 }
 
 void
-Gain::process_audio (shared_ptr<AudioBuffers> b)
+Gain::process_audio (shared_ptr<const AudioBuffers> b)
 {
        if (_gain != 0) {
                float const linear_gain = pow (10, _gain / 20);