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// Copyright 2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MURMUR_AUDIORECEIVERBUFFER_H_
#define MUMBLE_MURMUR_AUDIORECEIVERBUFFER_H_
#include "MumbleProtocol.h"
#include "ServerUser.h"
#include "VolumeAdjustment.h"
#include <functional>
#include <unordered_map>
#include <vector>
#include <Tracy.hpp>
class AudioReceiver {
public:
AudioReceiver(ServerUser &receiver, Mumble::Protocol::audio_context_t context,
const VolumeAdjustment &volumeAdjustment);
AudioReceiver(ServerUser &receiver, Mumble::Protocol::audio_context_t context, VolumeAdjustment &&volumeAdjustment);
ServerUser &getReceiver();
const ServerUser &getReceiver() const;
Mumble::Protocol::audio_context_t getContext() const;
void setContext(Mumble::Protocol::audio_context_t context);
const VolumeAdjustment &getVolumeAdjustment() const;
void setVolumeAdjustment(const VolumeAdjustment &adjustment);
void setVolumeAdjustment(VolumeAdjustment &&adjustment);
protected:
std::reference_wrapper< ServerUser > m_receiver;
Mumble::Protocol::audio_context_t m_context = Mumble::Protocol::AudioContext::INVALID;
VolumeAdjustment m_volumeAdjustment = VolumeAdjustment::fromFactor(1.0f);
};
template< typename Iterator > struct ReceiverRange {
Iterator begin;
Iterator end;
};
class AudioReceiverBuffer {
public:
AudioReceiverBuffer();
void addReceiver(const ServerUser &sender, ServerUser &receiver, Mumble::Protocol::audio_context_t context,
bool includePositionalData,
const VolumeAdjustment &volumeAdjustment = VolumeAdjustment::fromFactor(1.0f));
void forceAddReceiver(ServerUser &receiver, Mumble::Protocol::audio_context_t context, bool includePositionalData,
const VolumeAdjustment &volumeAdjustment = VolumeAdjustment::fromFactor(1.0f));
void preprocessBuffer();
void clear();
std::vector< AudioReceiver > &getReceivers(bool receivePositionalData);
template< typename Iterator > static ReceiverRange< Iterator > getReceiverRange(Iterator begin, Iterator end) {
ZoneScoped;
ReceiverRange< Iterator > range;
range.begin = begin;
// Find a range, such that all receivers in [begin, end) are compatible in the sense that they will all receive
// the exact same audio packet (thus: no re-encoding required between sending the packet to them).
range.end = std::lower_bound(begin, end, *begin, [](const AudioReceiver &lhs, const AudioReceiver &rhs) {
return lhs.getContext() == rhs.getContext()
&& Mumble::Protocol::protocolVersionsAreCompatible(lhs.getReceiver().uiVersion,
rhs.getReceiver().uiVersion)
// Allow a little variance between volume adjustments
&& std::abs(lhs.getVolumeAdjustment().factor - rhs.getVolumeAdjustment().factor) < 0.05f;
});
return range;
}
protected:
std::vector< AudioReceiver > m_regularReceivers;
std::unordered_map< const ServerUser *, std::size_t > m_regularReceiverIndices;
std::vector< AudioReceiver > m_positionalReceivers;
std::unordered_map< const ServerUser *, std::size_t > m_positionalReceiverIndices;
void preprocessBuffer(std::vector< AudioReceiver > &receiverList);
};
#endif // MUMBLE_MURMUR_AUDIORECEIVERBUFFER_H_
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