#include <zita-resampler/resampler.h>
#include "alsa_input.h"
+#include "alsa_pool.h"
#include "bmusb/bmusb.h"
#include "correlation_measurer.h"
#include "db.h"
#include "defs.h"
#include "ebu_r128_proc.h"
#include "filter.h"
+#include "input_mapping.h"
#include "resampling_queue.h"
#include "stereocompressor.h"
struct AudioFormat;
} // namespace bmusb
-enum class InputSourceType { SILENCE, CAPTURE_CARD, ALSA_INPUT };
-struct DeviceSpec {
- InputSourceType type;
- unsigned index;
-
- bool operator== (const DeviceSpec &other) const {
- return type == other.type && index == other.index;
- }
-
- bool operator< (const DeviceSpec &other) const {
- if (type != other.type)
- return type < other.type;
- return index < other.index;
- }
-};
-struct DeviceInfo {
- std::string display_name;
- unsigned num_channels;
-};
-
enum EQBand {
EQ_BAND_BASS = 0,
EQ_BAND_MID,
NUM_EQ_BANDS
};
-static inline uint64_t DeviceSpec_to_key(const DeviceSpec &device_spec)
-{
- return (uint64_t(device_spec.type) << 32) | device_spec.index;
-}
-
-static inline DeviceSpec key_to_DeviceSpec(uint64_t key)
-{
- return DeviceSpec{ InputSourceType(key >> 32), unsigned(key & 0xffffffff) };
-}
-
-struct InputMapping {
- struct Bus {
- std::string name;
- DeviceSpec device;
- int source_channel[2] { -1, -1 }; // Left and right. -1 = none.
- };
-
- std::vector<Bus> buses;
-};
-
class AudioMixer {
public:
AudioMixer(unsigned num_cards);
std::vector<float> get_output(double pts, unsigned num_samples, ResamplingQueue::RateAdjustmentPolicy rate_adjustment_policy);
+ float get_fader_volume(unsigned bus_index) const { return fader_volume_db[bus_index]; }
void set_fader_volume(unsigned bus_index, float level_db) { fader_volume_db[bus_index] = level_db; }
// Note: This operation holds all ALSA devices (see ALSAPool::get_devices()).
return alsa_pool.get_card_state(index);
}
+ // See comments on ALSAPool::create_dead_card().
+ DeviceSpec create_dead_card(const std::string &name, const std::string &info, unsigned num_channels)
+ {
+ unsigned dead_card_index = alsa_pool.create_dead_card(name, info, num_channels);
+ return DeviceSpec{InputSourceType::ALSA_INPUT, dead_card_index};
+ }
+
void set_display_name(DeviceSpec device_spec, const std::string &name);
+ // Note: The card should be held (currently this isn't enforced, though).
+ void serialize_device(DeviceSpec device_spec, DeviceSpecProto *device_spec_proto);
+
void set_input_mapping(const InputMapping &input_mapping);
InputMapping get_input_mapping() const;
}
}
+ // A combination of all settings for a bus. Useful if you want to get
+ // or store them as a whole without bothering to call all of the get_*
+ // or set_* functions for that bus.
+ struct BusSettings {
+ float fader_volume_db;
+ bool locut_enabled;
+ float eq_level_db[NUM_EQ_BANDS];
+ float gain_staging_db;
+ bool level_compressor_enabled;
+ float compressor_threshold_dbfs;
+ bool compressor_enabled;
+ };
+ static BusSettings get_default_bus_settings();
+ BusSettings get_bus_settings(unsigned bus_index) const;
+ void set_bus_settings(unsigned bus_index, const BusSettings &settings);
+
private:
struct AudioDevice {
std::unique_ptr<ResamplingQueue> resampling_queue;