Add some GUI elements (hooked up) to help tuning the compressor.

[nageru] / mixer.h

diff --git a/mixer.h b/mixer.h
index 0fd07aea05598f82ee0c1a3e2a46aeda821741f0..01712b8f136a0b116cc27c3d603b2c3b2613e348 100644 (file)
--- a/mixer.h
+++ b/mixer.h
@@ -137,6 +137,26 @@ public:
                locut_cutoff_hz = cutoff_hz;
        }
 
+       void set_limiter_threshold_dbfs(float threshold_dbfs)
+       {
+               limiter_threshold_dbfs = threshold_dbfs;
+       }
+
+       void set_compressor_threshold_dbfs(float threshold_dbfs)
+       {
+               compressor_threshold_dbfs = threshold_dbfs;
+       }
+
+       void set_limiter_enabled(bool enabled)
+       {
+               limiter_enabled = enabled;
+       }
+
+       void set_compressor_enabled(bool enabled)
+       {
+               compressor_enabled = enabled;
+       }
+
        void reset_meters();
 
 private:
@@ -224,8 +244,14 @@ private:
        StereoCompressor level_compressor;
        float last_gain_staging_db = 0.0f;
 
+       static constexpr float ref_level_dbfs = -14.0f;
+
        StereoCompressor limiter;
+       std::atomic<float> limiter_threshold_dbfs{ref_level_dbfs + 0.0f};   // 0 dB.
+       std::atomic<bool> limiter_enabled{true};
        StereoCompressor compressor;
+       std::atomic<float> compressor_threshold_dbfs{ref_level_dbfs - 12.0f};  // -12 dB.
+       std::atomic<bool> compressor_enabled{true};
 };
 
 extern Mixer *global_mixer;