}
struct BusLevel {
- float loudness_lufs;
+ 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 gain_staging_db;
float compressor_attenuation_db; // A positive number; 0.0 for no attenuation.
};
void reset_alsa_mutex_held(DeviceSpec device_spec);
std::map<DeviceSpec, DeviceInfo> get_devices_mutex_held() const;
void update_meters(const std::vector<float> &samples);
- void measure_bus_levels(unsigned bus_index, const std::vector<float> &left, const std::vector<float> &right);
+ void measure_bus_levels(unsigned bus_index, const std::vector<float> &left, const std::vector<float> &right, float volume);
void send_audio_level_callback();
unsigned num_cards;
std::atomic<float> compressor_threshold_dbfs[MAX_BUSES];
std::atomic<bool> compressor_enabled[MAX_BUSES];
+ 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 last_peak = 0.0f;
+ float age_seconds = 0.0f; // Time since "last_peak" was set.
+ };
+ PeakHistory peak_history[MAX_BUSES][2]; // Separate for each channel.
+
double final_makeup_gain = 1.0; // Under compressor_mutex. Read/write by the user. Note: Not in dB, we want the numeric precision so that we can change it slowly.
bool final_makeup_gain_auto = true; // Under compressor_mutex.
CorrelationMeasurer correlation; // Under audio_measure_mutex.
Resampler peak_resampler; // Under audio_measure_mutex.
std::atomic<float> peak{0.0f};
-
- // Under audio_measure_mutex. Note that Ebu_r128_proc has a broken
- // copy constructor (it uses the default, but holds arrays),
- // so we can't just use raw Ebu_r128_proc elements, but need to use
- // unique_ptrs.
- std::vector<std::unique_ptr<Ebu_r128_proc>> bus_r128;
};
#endif // !defined(_AUDIO_MIXER_H)