805 lines
18 KiB
C++
805 lines
18 KiB
C++
/*
|
||
* This file is part of the Colobot: Gold Edition source code
|
||
* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
|
||
* http://epsiteс.ch; http://colobot.info; http://github.com/colobot
|
||
*
|
||
* This program is free software: you can redistribute it and/or modify
|
||
* it under the terms of the GNU General Public License as published by
|
||
* the Free Software Foundation, either version 3 of the License, or
|
||
* (at your option) any later version.
|
||
*
|
||
* This program is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
* See the GNU General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU General Public License
|
||
* along with this program. If not, see http://gnu.org/licenses
|
||
*/
|
||
|
||
|
||
#include "sound/oalsound/alsound.h"
|
||
|
||
#include <algorithm>
|
||
#include <iomanip>
|
||
|
||
#include <boost/filesystem.hpp>
|
||
|
||
ALSound::ALSound()
|
||
{
|
||
m_enabled = false;
|
||
m_audioVolume = 1.0f;
|
||
m_musicVolume = 1.0f;
|
||
m_currentMusic = nullptr;
|
||
m_eye.LoadZero();
|
||
m_lookat.LoadZero();
|
||
m_previousMusic.fadeTime = 0.0f;
|
||
m_previousMusic.music = nullptr;
|
||
m_channels_limit = 2048;
|
||
}
|
||
|
||
|
||
ALSound::~ALSound()
|
||
{
|
||
CleanUp();
|
||
}
|
||
|
||
|
||
void ALSound::CleanUp()
|
||
{
|
||
if (m_enabled)
|
||
{
|
||
GetLogger()->Info("Unloading files and closing device...\n");
|
||
StopAll();
|
||
StopMusic();
|
||
|
||
for (auto channel : m_channels)
|
||
{
|
||
delete channel.second;
|
||
}
|
||
|
||
delete m_currentMusic;
|
||
|
||
for (auto item : m_oldMusic)
|
||
{
|
||
delete item.music;
|
||
}
|
||
|
||
delete m_previousMusic.music;
|
||
|
||
for (auto item : m_sounds)
|
||
{
|
||
delete item.second;
|
||
}
|
||
|
||
for (auto item : m_music)
|
||
{
|
||
delete item.second;
|
||
}
|
||
|
||
m_enabled = false;
|
||
|
||
alcDestroyContext(m_context);
|
||
alcCloseDevice(m_device);
|
||
}
|
||
}
|
||
|
||
|
||
bool ALSound::Create()
|
||
{
|
||
CleanUp();
|
||
|
||
if (m_enabled)
|
||
return true;
|
||
|
||
GetLogger()->Info("Opening audio device...\n");
|
||
m_device = alcOpenDevice(NULL);
|
||
if (!m_device)
|
||
{
|
||
GetLogger()->Error("Could not open audio device!\n");
|
||
return false;
|
||
}
|
||
|
||
m_context = alcCreateContext(m_device, NULL);
|
||
if (!m_context)
|
||
{
|
||
GetLogger()->Error("Could not create audio context!\n");
|
||
return false;
|
||
}
|
||
alcMakeContextCurrent(m_context);
|
||
alListenerf(AL_GAIN, m_audioVolume);
|
||
alDistanceModel(AL_LINEAR_DISTANCE_CLAMPED);
|
||
|
||
GetLogger()->Info("Done.\n");
|
||
m_enabled = true;
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::GetEnable()
|
||
{
|
||
return m_enabled;
|
||
}
|
||
|
||
|
||
void ALSound::SetAudioVolume(int volume)
|
||
{
|
||
m_audioVolume = static_cast<float>(volume) / MAXVOLUME;
|
||
}
|
||
|
||
|
||
int ALSound::GetAudioVolume()
|
||
{
|
||
if ( !m_enabled )
|
||
return 0;
|
||
|
||
return m_audioVolume * MAXVOLUME;
|
||
}
|
||
|
||
|
||
void ALSound::SetMusicVolume(int volume)
|
||
{
|
||
m_musicVolume = static_cast<float>(volume) / MAXVOLUME;
|
||
if (m_currentMusic)
|
||
{
|
||
m_currentMusic->SetVolume(m_musicVolume);
|
||
}
|
||
}
|
||
|
||
|
||
int ALSound::GetMusicVolume()
|
||
{
|
||
if ( !m_enabled )
|
||
return 0.0f;
|
||
|
||
return m_musicVolume * MAXVOLUME;
|
||
}
|
||
|
||
|
||
bool ALSound::Cache(Sound sound, const std::string &filename)
|
||
{
|
||
Buffer *buffer = new Buffer();
|
||
if (buffer->LoadFromFile(filename, sound))
|
||
{
|
||
m_sounds[sound] = buffer;
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
bool ALSound::CacheMusic(const std::string &filename)
|
||
{
|
||
if (m_music.find("music/"+filename) == m_music.end())
|
||
{
|
||
Buffer *buffer = new Buffer();
|
||
if (buffer->LoadFromFile("music/"+filename, static_cast<Sound>(-1)))
|
||
{
|
||
m_music["music/"+filename] = buffer;
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
int ALSound::GetPriority(Sound sound)
|
||
{
|
||
if ( sound == SOUND_FLYh ||
|
||
sound == SOUND_FLY ||
|
||
sound == SOUND_MOTORw ||
|
||
sound == SOUND_MOTORt ||
|
||
sound == SOUND_MOTORr ||
|
||
sound == SOUND_MOTORs ||
|
||
sound == SOUND_SLIDE ||
|
||
sound == SOUND_ERROR )
|
||
{
|
||
return 30;
|
||
}
|
||
|
||
if ( sound == SOUND_CONVERT ||
|
||
sound == SOUND_ENERGY ||
|
||
sound == SOUND_DERRICK ||
|
||
sound == SOUND_STATION ||
|
||
sound == SOUND_REPAIR ||
|
||
sound == SOUND_RESEARCH ||
|
||
sound == SOUND_BURN ||
|
||
sound == SOUND_BUILD ||
|
||
sound == SOUND_TREMBLE ||
|
||
sound == SOUND_NUCLEAR ||
|
||
sound == SOUND_EXPLO ||
|
||
sound == SOUND_EXPLOl ||
|
||
sound == SOUND_EXPLOlp ||
|
||
sound == SOUND_EXPLOp ||
|
||
sound == SOUND_EXPLOi )
|
||
{
|
||
return 20;
|
||
}
|
||
|
||
if ( sound == SOUND_BLUP ||
|
||
sound == SOUND_INSECTs ||
|
||
sound == SOUND_INSECTa ||
|
||
sound == SOUND_INSECTb ||
|
||
sound == SOUND_INSECTw ||
|
||
sound == SOUND_INSECTm ||
|
||
sound == SOUND_PSHHH ||
|
||
sound == SOUND_EGG )
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
return 10;
|
||
}
|
||
|
||
|
||
bool ALSound::SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded)
|
||
{
|
||
int priority = GetPriority(sound);
|
||
|
||
// Seeks a channel used which sound is stopped.
|
||
for (auto it : m_channels)
|
||
{
|
||
if (it.second->IsPlaying())
|
||
{
|
||
continue;
|
||
}
|
||
if (it.second->GetSoundType() != sound)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
it.second->SetPriority(priority);
|
||
it.second->Reset();
|
||
channel = it.first;
|
||
bAlreadyLoaded = it.second->IsLoaded();
|
||
return true;
|
||
}
|
||
|
||
// just add a new channel if we dont have any
|
||
if (m_channels.size() == 0)
|
||
{
|
||
Channel *chn = new Channel();
|
||
// check if we channel ready to play music, if not report error
|
||
if (chn->IsReady())
|
||
{
|
||
chn->SetPriority(priority);
|
||
chn->Reset();
|
||
m_channels[1] = chn;
|
||
channel = 1;
|
||
bAlreadyLoaded = false;
|
||
return true;
|
||
}
|
||
delete chn;
|
||
GetLogger()->Error("Could not open channel to play sound!\n");
|
||
return false;
|
||
}
|
||
|
||
// Assigns new channel within limit
|
||
if (m_channels.size() < m_channels_limit)
|
||
{
|
||
auto it = m_channels.end();
|
||
it--;
|
||
int i = (*it).first;
|
||
while (++i)
|
||
{
|
||
if (m_channels.find(i) == m_channels.end())
|
||
{
|
||
Channel *chn = new Channel();
|
||
// check if channel is ready to play music, if not destroy it and seek free one
|
||
if (chn->IsReady())
|
||
{
|
||
chn->SetPriority(priority);
|
||
chn->Reset();
|
||
m_channels[++i] = chn;
|
||
channel = i;
|
||
bAlreadyLoaded = false;
|
||
return true;
|
||
}
|
||
delete chn;
|
||
GetLogger()->Debug("Could not open additional channel to play sound!\n");
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
int lowerOrEqual = -1;
|
||
for (auto it : m_channels)
|
||
{
|
||
if (it.second->GetPriority() < priority)
|
||
{
|
||
GetLogger()->Debug("Sound channel with lower priority will be reused.\n");
|
||
channel = it.first;
|
||
it.second->Reset();
|
||
return true;
|
||
}
|
||
if (it.second->GetPriority() <= priority)
|
||
lowerOrEqual = it.first;
|
||
}
|
||
|
||
if (lowerOrEqual != -1)
|
||
{
|
||
channel = lowerOrEqual;
|
||
m_channels[channel]->Reset();
|
||
GetLogger()->Debug("Sound channel with lower or equal priority will be reused.\n");
|
||
return true;
|
||
}
|
||
|
||
GetLogger()->Debug("Could not find free buffer to use.\n");
|
||
return false;
|
||
}
|
||
|
||
|
||
int ALSound::Play(Sound sound, float amplitude, float frequency, bool bLoop)
|
||
{
|
||
return Play(sound, m_eye, amplitude, frequency, bLoop);
|
||
}
|
||
|
||
|
||
int ALSound::Play(Sound sound, const Math::Vector &pos, float amplitude, float frequency, bool bLoop)
|
||
{
|
||
if (!m_enabled)
|
||
{
|
||
return -1;
|
||
}
|
||
if (m_sounds.find(sound) == m_sounds.end())
|
||
{
|
||
GetLogger()->Debug("Sound %d was not loaded!\n", sound);
|
||
return -1;
|
||
}
|
||
|
||
int channel;
|
||
bool bAlreadyLoaded = false;
|
||
if (!SearchFreeBuffer(sound, channel, bAlreadyLoaded))
|
||
{
|
||
return -1;
|
||
}
|
||
|
||
if (!bAlreadyLoaded)
|
||
{
|
||
if (!m_channels[channel]->SetBuffer(m_sounds[sound]))
|
||
{
|
||
m_channels[channel]->SetBuffer(nullptr);
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
m_channels[channel]->SetPosition(pos);
|
||
m_channels[channel]->SetVolumeAtrib(1.0f);
|
||
|
||
// setting initial values
|
||
m_channels[channel]->SetStartAmplitude(amplitude);
|
||
m_channels[channel]->SetStartFrequency(frequency);
|
||
m_channels[channel]->SetChangeFrequency(1.0f);
|
||
m_channels[channel]->ResetOper();
|
||
m_channels[channel]->SetFrequency(frequency);
|
||
m_channels[channel]->SetVolume(powf(amplitude * m_channels[channel]->GetVolumeAtrib(), 0.2f) * m_audioVolume);
|
||
m_channels[channel]->SetLoop(bLoop);
|
||
|
||
if (!m_channels[channel]->Play())
|
||
{
|
||
m_channels_limit = m_channels.size() - 1;
|
||
GetLogger()->Debug("Changing channel limit to %u.\n", m_channels_limit);
|
||
auto it = m_channels.find(channel);
|
||
Channel *ch = it->second;
|
||
m_channels.erase(it);
|
||
delete ch;
|
||
|
||
return -1;
|
||
}
|
||
|
||
return channel | ((m_channels[channel]->GetId() & 0xffff) << 16);
|
||
}
|
||
|
||
|
||
bool ALSound::FlushEnvelope(int channel)
|
||
{
|
||
if (!CheckChannel(channel))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
m_channels[channel]->ResetOper();
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::AddEnvelope(int channel, float amplitude, float frequency, float time, SoundNext oper)
|
||
{
|
||
if (!CheckChannel(channel))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
SoundOper op;
|
||
op.finalAmplitude = amplitude;
|
||
op.finalFrequency = frequency;
|
||
op.totalTime = time;
|
||
op.nextOper = oper;
|
||
op.currentTime = 0.0f;
|
||
m_channels[channel]->AddOper(op);
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::Position(int channel, const Math::Vector &pos)
|
||
{
|
||
if (!CheckChannel(channel))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
m_channels[channel]->SetPosition(pos);
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::Frequency(int channel, float frequency)
|
||
{
|
||
if (!CheckChannel(channel))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
m_channels[channel]->SetFrequency(frequency * m_channels[channel]->GetInitFrequency());
|
||
m_channels[channel]->SetChangeFrequency(frequency);
|
||
return true;
|
||
}
|
||
|
||
bool ALSound::Stop(int channel)
|
||
{
|
||
if (!CheckChannel(channel))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
m_channels[channel]->Stop();
|
||
m_channels[channel]->ResetOper();
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::StopAll()
|
||
{
|
||
if (!m_enabled)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
for (auto channel : m_channels)
|
||
{
|
||
channel.second->Stop();
|
||
channel.second->ResetOper();
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::MuteAll(bool bMute)
|
||
{
|
||
if (!m_enabled)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
for (auto it : m_channels)
|
||
{
|
||
if (it.second->IsPlaying())
|
||
{
|
||
it.second->Mute(bMute);
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
void ALSound::FrameMove(float delta)
|
||
{
|
||
if (!m_enabled)
|
||
{
|
||
return;
|
||
}
|
||
|
||
float progress;
|
||
float volume, frequency;
|
||
for (auto it : m_channels)
|
||
{
|
||
if (!it.second->IsPlaying())
|
||
{
|
||
continue;
|
||
}
|
||
if (it.second->IsMuted())
|
||
{
|
||
it.second->SetVolume(0.0f);
|
||
continue;
|
||
}
|
||
|
||
if (!it.second->HasEnvelope())
|
||
continue;
|
||
|
||
SoundOper &oper = it.second->GetEnvelope();
|
||
oper.currentTime += delta;
|
||
progress = oper.currentTime / oper.totalTime;
|
||
progress = std::min(progress, 1.0f);
|
||
|
||
// setting volume
|
||
volume = progress * (oper.finalAmplitude - it.second->GetStartAmplitude());
|
||
volume = volume + it.second->GetStartAmplitude();
|
||
it.second->SetVolume(powf(volume * it.second->GetVolumeAtrib(), 0.2f) * m_audioVolume);
|
||
|
||
// setting frequency
|
||
frequency = progress;
|
||
frequency *= oper.finalFrequency - it.second->GetStartFrequency();
|
||
frequency += it.second->GetStartFrequency();
|
||
frequency *= it.second->GetChangeFrequency();
|
||
frequency = (frequency * it.second->GetInitFrequency());
|
||
it.second->SetFrequency(frequency);
|
||
|
||
if (oper.totalTime <= oper.currentTime)
|
||
{
|
||
if (oper.nextOper == SOPER_LOOP)
|
||
{
|
||
oper.currentTime = 0.0f;
|
||
it.second->Play();
|
||
}
|
||
else
|
||
{
|
||
it.second->SetStartAmplitude(oper.finalAmplitude);
|
||
it.second->SetStartFrequency(oper.finalFrequency);
|
||
if (oper.nextOper == SOPER_STOP)
|
||
{
|
||
it.second->Stop();
|
||
}
|
||
|
||
it.second->PopEnvelope();
|
||
}
|
||
}
|
||
}
|
||
|
||
std::list<OldMusic> toRemove;
|
||
|
||
for (auto& it : m_oldMusic)
|
||
{
|
||
if (it.currentTime >= it.fadeTime)
|
||
{
|
||
delete it.music;
|
||
toRemove.push_back(it);
|
||
}
|
||
else
|
||
{
|
||
it.currentTime += delta;
|
||
it.music->SetVolume(((it.fadeTime-it.currentTime) / it.fadeTime) * m_musicVolume);
|
||
}
|
||
}
|
||
|
||
if (m_previousMusic.fadeTime > 0.0f) {
|
||
if (m_previousMusic.currentTime >= m_previousMusic.fadeTime)
|
||
{
|
||
m_previousMusic.music->Pause();
|
||
}
|
||
else
|
||
{
|
||
m_previousMusic.currentTime += delta;
|
||
m_previousMusic.music->SetVolume(((m_previousMusic.fadeTime-m_previousMusic.currentTime) / m_previousMusic.fadeTime) * m_musicVolume);
|
||
}
|
||
}
|
||
|
||
for (auto it : toRemove)
|
||
m_oldMusic.remove(it);
|
||
}
|
||
|
||
|
||
void ALSound::SetListener(const Math::Vector &eye, const Math::Vector &lookat)
|
||
{
|
||
m_eye = eye;
|
||
m_lookat = lookat;
|
||
Math::Vector forward = lookat - eye;
|
||
forward.Normalize();
|
||
float orientation[] = {forward.x, forward.y, forward.z, 0.f, -1.0f, 0.0f};
|
||
|
||
alListener3f(AL_POSITION, eye.x, eye.y, eye.z);
|
||
alListenerfv(AL_ORIENTATION, orientation);
|
||
}
|
||
|
||
|
||
bool ALSound::PlayMusic(int rank, bool bRepeat, float fadeTime)
|
||
{
|
||
std::stringstream filename;
|
||
filename << "music" << std::setfill('0') << std::setw(3) << rank << ".ogg";
|
||
return PlayMusic(filename.str(), bRepeat, fadeTime);
|
||
}
|
||
|
||
|
||
bool operator<(const OldMusic & l, const OldMusic & r)
|
||
{
|
||
return l.currentTime < r.currentTime;
|
||
}
|
||
|
||
|
||
bool operator==(const OldMusic & l, const OldMusic & r)
|
||
{
|
||
return l.currentTime == r.currentTime;
|
||
}
|
||
|
||
|
||
bool ALSound::PlayMusic(const std::string &filename, bool bRepeat, float fadeTime)
|
||
{
|
||
if (!m_enabled)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
Buffer *buffer;
|
||
|
||
// check if we have music in cache
|
||
if (m_music.find("music/"+filename) == m_music.end())
|
||
{
|
||
GetLogger()->Debug("Music %s was not cached!\n", filename.c_str());
|
||
/* TODO: if (!boost::filesystem::exists("music/"+filename))
|
||
{
|
||
GetLogger()->Debug("Requested music %s was not found.\n", filename.c_str());
|
||
return false;
|
||
} */
|
||
|
||
buffer = new Buffer();
|
||
if (!buffer->LoadFromFile("music/"+filename, static_cast<Sound>(-1)))
|
||
{
|
||
return false;
|
||
}
|
||
m_music["music/"+filename] = buffer;
|
||
}
|
||
else
|
||
{
|
||
GetLogger()->Debug("Music loaded from cache\n");
|
||
buffer = m_music["music/"+filename];
|
||
}
|
||
|
||
if (m_currentMusic)
|
||
{
|
||
OldMusic old;
|
||
old.music = m_currentMusic;
|
||
old.fadeTime = fadeTime;
|
||
old.currentTime = 0.0f;
|
||
m_oldMusic.push_back(old);
|
||
}
|
||
|
||
m_currentMusic = new Channel();
|
||
m_currentMusic->SetBuffer(buffer);
|
||
m_currentMusic->SetVolume(m_musicVolume);
|
||
m_currentMusic->SetLoop(bRepeat);
|
||
m_currentMusic->Play();
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
bool ALSound::PlayPauseMusic(const std::string &filename, bool repeat)
|
||
{
|
||
if (m_previousMusic.fadeTime > 0.0f)
|
||
{
|
||
if(m_currentMusic)
|
||
{
|
||
OldMusic old;
|
||
old.music = m_currentMusic;
|
||
old.fadeTime = 2.0f;
|
||
old.currentTime = 0.0f;
|
||
m_oldMusic.push_back(old);
|
||
m_currentMusic = nullptr;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (m_currentMusic)
|
||
{
|
||
m_previousMusic.music = m_currentMusic;
|
||
m_previousMusic.fadeTime = 2.0f;
|
||
m_previousMusic.currentTime = 0.0f;
|
||
m_currentMusic = nullptr;
|
||
}
|
||
}
|
||
return PlayMusic(filename, repeat);
|
||
}
|
||
|
||
|
||
void ALSound::StopPauseMusic()
|
||
{
|
||
if (m_previousMusic.fadeTime > 0.0f)
|
||
{
|
||
StopMusic();
|
||
|
||
m_currentMusic = m_previousMusic.music;
|
||
m_previousMusic.music = nullptr;
|
||
if(m_currentMusic != nullptr)
|
||
{
|
||
m_currentMusic->SetVolume(m_musicVolume);
|
||
if(m_previousMusic.currentTime >= m_previousMusic.fadeTime)
|
||
{
|
||
m_currentMusic->Play();
|
||
}
|
||
}
|
||
m_previousMusic.fadeTime = 0.0f;
|
||
}
|
||
}
|
||
|
||
|
||
bool ALSound::RestartMusic()
|
||
{
|
||
if (!m_enabled || !m_currentMusic)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
m_currentMusic->Stop();
|
||
m_currentMusic->Play();
|
||
return true;
|
||
}
|
||
|
||
|
||
void ALSound::StopMusic(float fadeTime)
|
||
{
|
||
if (!m_enabled || !m_currentMusic)
|
||
{
|
||
return;
|
||
}
|
||
|
||
OldMusic old;
|
||
old.music = m_currentMusic;
|
||
old.fadeTime = fadeTime;
|
||
old.currentTime = 0.0f;
|
||
m_oldMusic.push_back(old);
|
||
|
||
m_currentMusic = nullptr;
|
||
}
|
||
|
||
|
||
bool ALSound::IsPlayingMusic()
|
||
{
|
||
if (!m_enabled || !m_currentMusic)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
return m_currentMusic->IsPlaying();
|
||
}
|
||
|
||
|
||
void ALSound::SuspendMusic()
|
||
{
|
||
if (!m_enabled || !m_currentMusic)
|
||
{
|
||
return;
|
||
}
|
||
|
||
m_currentMusic->Stop();
|
||
}
|
||
|
||
|
||
bool ALSound::CheckChannel(int &channel)
|
||
{
|
||
int id = (channel >> 16) & 0xffff;
|
||
channel &= 0xffff;
|
||
|
||
if (!m_enabled)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
if (m_channels.find(channel) == m_channels.end())
|
||
{
|
||
return false;
|
||
}
|
||
|
||
if (m_audioVolume == 0)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
if (m_channels[channel]->GetId() != id)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|