overte-AleziaKurdis/assignment-client/src/audio/AudioMixerSlave.h
2017-02-14 20:46:27 +00:00

67 lines
2.2 KiB
C++

//
// AudioMixerSlave.h
// assignment-client/src/audio
//
// Created by Zach Pomerantz on 11/22/16.
// Copyright 2016 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#ifndef hifi_AudioMixerSlave_h
#define hifi_AudioMixerSlave_h
#include <AABox.h>
#include <AudioHRTF.h>
#include <AudioRingBuffer.h>
#include <ThreadedAssignment.h>
#include <UUIDHasher.h>
#include <NodeList.h>
#include "AudioMixerStats.h"
class PositionalAudioStream;
class AvatarAudioStream;
class AudioHRTF;
class AudioMixerClientData;
class AudioMixerSlave {
public:
using ConstIter = NodeList::const_iterator;
// process packets for a given node (requires no configuration)
void processPackets(const SharedNodePointer& node);
// configure a round of mixing
void configureMix(ConstIter begin, ConstIter end, unsigned int frame, float throttlingRatio);
// mix and broadcast non-ignored streams to the node (requires configuration using configureMix, above)
// returns true if a mixed packet was sent to the node
void mix(const SharedNodePointer& node);
AudioMixerStats stats;
private:
// create mix, returns true if mix has audio
bool prepareMix(const SharedNodePointer& listener);
void throttleStream(AudioMixerClientData& listenerData, const QUuid& streamerID,
const AvatarAudioStream& listenerStream, const PositionalAudioStream& streamer);
void mixStream(AudioMixerClientData& listenerData, const QUuid& streamerID,
const AvatarAudioStream& listenerStream, const PositionalAudioStream& streamer);
void addStream(AudioMixerClientData& listenerData, const QUuid& streamerID,
const AvatarAudioStream& listenerStream, const PositionalAudioStream& streamer,
bool throttle);
// mixing buffers
float _mixSamples[AudioConstants::NETWORK_FRAME_SAMPLES_STEREO];
int16_t _bufferSamples[AudioConstants::NETWORK_FRAME_SAMPLES_STEREO];
// frame state
ConstIter _begin;
ConstIter _end;
unsigned int _frame { 0 };
float _throttlingRatio { 0.0f };
};
#endif // hifi_AudioMixerSlave_h