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#ifndef STAR_VOICE_HPP
#define STAR_VOICE_HPP
#include "StarJson.hpp"
#include "StarBiMap.hpp"
#include "StarException.hpp"
#include "StarGameTypes.hpp"
#include "StarMaybe.hpp"
#include "StarThread.hpp"
#include "StarApplicationController.hpp"
struct OpusDecoder;
typedef std::unique_ptr<OpusDecoder, void(*)(OpusDecoder*)> OpusDecoderPtr;
struct OpusEncoder;
typedef std::unique_ptr<OpusEncoder, void(*)(OpusEncoder*)> OpusEncoderPtr;
namespace Star {
STAR_EXCEPTION(VoiceException, StarException);
enum class VoiceInputMode : uint8_t { VoiceActivity, PushToTalk };
extern EnumMap<VoiceInputMode> const VoiceInputModeNames;
enum class VoiceChannelMode: uint8_t { Mono = 1, Stereo = 2 };
extern EnumMap<VoiceChannelMode> const VoiceChannelModeNames;
STAR_CLASS(Voice);
STAR_CLASS(VoiceAudioStream);
STAR_CLASS(ApplicationController);
class Voice {
public:
// Individual speakers are represented by their connection ID.
typedef ConnectionId SpeakerId;
class Speaker {
public:
SpeakerId speakerId = 0;
EntityId entityId = 0;
Vec2F position = Vec2F();
String name = "Unnamed";
OpusDecoderPtr decoderMono;
OpusDecoderPtr decoderStereo;
VoiceAudioStreamPtr audioStream;
Mutex mutex;
Speaker(SpeakerId speakerId);
};
typedef std::shared_ptr<Speaker> SpeakerPtr;
// Get pointer to the singleton Voice instance, if it exists. Otherwise,
// returns nullptr.
static Voice* singletonPtr();
// Gets reference to Voice singleton, throws VoiceException if root
// is not initialized.
static Voice& singleton();
Voice(ApplicationControllerPtr appController);
~Voice();
Voice(Voice const&) = delete;
Voice& operator=(Voice const&) = delete;
void init();
void loadJson(Json const& config);
Json saveJson() const;
void save() const;
void scheduleSave();
// Sets the local speaker ID and returns the local speaker. Must be called upon loading into a world.
SpeakerPtr setLocalSpeaker(SpeakerId speakerId);
SpeakerPtr speaker(SpeakerId speakerId);
// Called when receiving input audio data from SDL, on its own thread.
void getAudioData(uint8_t* stream, int len);
// Called to mix voice audio with the game.
void mix(int16_t* buffer, size_t frames, unsigned channels);
typedef function<float(unsigned, Vec2F, float)> PositionalAttenuationFunction;
void update(PositionalAttenuationFunction positionalAttenuationFunction = {});
void setDeviceName(Maybe<String> device);
inline int encoderChannels() const {
return m_channelMode == VoiceChannelMode::Mono ? 1 : 2;
}
private:
static Voice* s_singleton;
static OpusDecoder* createDecoder(int channels);
static OpusEncoder* createEncoder(int channels);
void resetEncoder();
void openDevice();
void closeDevice();
SpeakerId m_speakerId = 0;
SpeakerPtr m_clientSpeaker;
HashMap<SpeakerId, SpeakerPtr> m_speakers;
HashSet<SpeakerPtr> m_activeSpeakers;
OpusEncoderPtr m_encoder;
float m_outputVolume = 1.0f;
float m_inputVolume = 1.0f;
float m_threshold = -50.0f;
bool m_enabled = true;
bool m_inputEnabled = true;
bool m_deviceOpen = false;
Maybe<String> m_deviceName;
VoiceInputMode m_inputMode;
VoiceChannelMode m_channelMode;
ApplicationControllerPtr m_applicationController;
double nextSaveTime = 0.0f;
};
}
#endif
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