Show historic peak of each bus under the peak meter.

[nageru] / audio_mixer.h

diff --git a/audio_mixer.h b/audio_mixer.h
index 6e7719f23313238b5bebaab70fea90e47af1c8b0..5d65582c939fa191bcf8efad870d6e1c65b65c25 100644 (file)
--- a/audio_mixer.h
+++ b/audio_mixer.h
@@ -204,6 +204,7 @@ public:
        struct BusLevel {
                float current_level_dbfs[2];  // Digital peak of last frame, left and right.
                float peak_level_dbfs[2];  // Digital peak with hold, left and right.
+               float historic_peak_dbfs;
                float gain_staging_db;
                float compressor_attenuation_db;  // A positive number; 0.0 for no attenuation.
        };
@@ -270,9 +271,11 @@ private:
        std::atomic<float> compressor_threshold_dbfs[MAX_BUSES];
        std::atomic<bool> compressor_enabled[MAX_BUSES];
 
+       // Note: The values here are not in dB.
        struct PeakHistory {
-               float current_level = 0.0f;  // Peak of the last frame (not in dB).
-               float current_peak = 0.0f;  // Current peak of the peak meter (not in dB).
+               float current_level = 0.0f;  // Peak of the last frame.
+               float historic_peak = 0.0f;  // Highest peak since last reset; no falloff.
+               float current_peak = 0.0f;  // Current peak of the peak meter.
                float last_peak = 0.0f;
                float age_seconds = 0.0f;   // Time since "last_peak" was set.
        };