Hook up the per-bus VU meters.

[nageru] / audio_mixer.h

diff --git a/audio_mixer.h b/audio_mixer.h
index 75b468a120f7d1f39aa293009e9b76153ae4e9a3..31611af095151b4f65b2cc40f7836ed39b06887d 100644 (file)
--- a/audio_mixer.h
+++ b/audio_mixer.h
@@ -202,6 +202,7 @@ public:
        }
 
        typedef std::function<void(float level_lufs, float peak_db,
+                                  std::vector<float> bus_level_lufs,
                                   float global_level_lufs, float range_low_lufs, float range_high_lufs,
                                   float gain_staging_db, float final_makeup_gain_db,
                                   float correlation)> audio_level_callback_t;
@@ -229,6 +230,7 @@ private:
        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 send_audio_level_callback();
 
        unsigned num_cards;
@@ -273,6 +275,12 @@ private:
        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)