C++ BASS_ChannelSetAttribute函数代码示例

void CBassAudio::SetTempoValues ( float fSampleRate, float fTempo, float fPitch, bool bReverse )
{
    if ( fTempo != m_fTempo )
    {
        m_fTempo = fTempo;
    }
    if ( fPitch != m_fPitch )
    {
        m_fPitch = fPitch;
    }
    if ( fSampleRate != m_fSampleRate )
    {
        m_fSampleRate = fSampleRate;
    }
    m_bReversed = bReverse;

    // Update our attributes
    if ( m_pSound )
    {
        // TODO: These are lost when the sound is not streamed in
        BASS_ChannelSetAttribute ( m_pSound, BASS_ATTRIB_TEMPO, m_fTempo );
        BASS_ChannelSetAttribute ( m_pSound, BASS_ATTRIB_TEMPO_PITCH, m_fPitch );
        BASS_ChannelSetAttribute ( m_pSound, BASS_ATTRIB_TEMPO_FREQ, m_fSampleRate );
        BASS_ChannelSetAttribute ( BASS_FX_TempoGetSource ( m_pSound ), BASS_ATTRIB_REVERSE_DIR, (float)(bReverse == false ? BASS_FX_RVS_FORWARD : BASS_FX_RVS_REVERSE) );
    }
}

BOOL CALLBACK RecordingCallback(HRECORD handle, const void *buffer, DWORD length, void *user)
{
	DWORD bl;
	BASS_StreamPutData(chan,buffer,length); // feed recorded data to output stream
	bl=BASS_ChannelGetData(chan,NULL,BASS_DATA_AVAILABLE); // get output buffer level
	if (prebuf) { // prebuffering
		if (bl>=prebuf+length) { // gone 1 block past the prebuffering target
#ifdef ADJUSTRATE
			targbuf=bl; // target the current level
			prevbuf=0;
#endif
			prebuf=0; // finished prebuffering
			BASS_ChannelPlay(chan,FALSE); // start the output
		}
	} else { // playing
#ifdef ADJUSTRATE
		if (bl<targbuf) { // buffer level is below target, slow down...
			rate--;
			BASS_ChannelSetAttribute(chan,BASS_ATTRIB_FREQ,rate);
			prevbuf=0;
		} else if (bl>targbuf && bl>=prevbuf) { // buffer level is high and not falling, speed up...
			rate++;
			BASS_ChannelSetAttribute(chan,BASS_ATTRIB_FREQ,rate);
			prevbuf=bl;
		}
#endif
	}
	return TRUE; // continue recording
}

Plane::Plane(std::string meshdir, std::string texturedir, Vector3 position)
: MovingObject(meshdir, texturedir, position, false){
	this->speed        = 0;
	this->acceleration = 50;
	this->deceleration = 5;
	this->max_speed	   = 200;
	this->min_speed	   = 50;
	this->std_speed    = 5;
	this->roll         = 3;
	this->v_roll       = 2;
	this->h_roll       = 1;
	this->friction     = 0.01;

	numBullets   = 10000;
	bulletsShoot = 0;

	cadencia = 0.25;

	name_ = "Plane " + id;

	motor = BASS_SampleLoad(false,"..\\..\\data\\sound\\motor.mp3",0,0,3,BASS_SAMPLE_LOOP);
	motorSampleChannel = BASS_SampleGetChannel(motor,false);
	BASS_ChannelPlay(motorSampleChannel,true);
	BASS_ChannelSetAttribute(motorSampleChannel,BASS_ATTRIB_VOL,0.5);
	BASS_ChannelSet3DAttributes(motorSampleChannel,BASS_3DMODE_NORMAL,1,500,360,360,0.1);

	bullet = BASS_SampleLoad(false,"..\\..\\data\\sound\\shot.mp3",0,0,3,0);
	bulletSampleChannel = BASS_SampleGetChannel(bullet,false);
	BASS_ChannelSetAttribute(bulletSampleChannel,BASS_ATTRIB_VOL,0.7);
	BASS_ChannelSet3DAttributes(bulletSampleChannel,BASS_3DMODE_NORMAL,0,500,360,360,0.1);
}

bool cSoundEffect::play(unsigned int index)
{
	if( index < m_vecSamples.size() )
	{
		HCHANNEL hChannel = BASS_SampleGetChannel(m_vecSamples[index], FALSE);

		BASS_ChannelSetAttribute(hChannel, BASS_ATTRIB_VOL, 1.0f);
		BASS_ChannelSetAttribute(hChannel, BASS_ATTRIB_PAN, 0.0f);

		return BASS_ChannelPlay(hChannel, TRUE) == TRUE;
	}

	return false;
}

HCHANNEL BassSoundEngine::PlayMusic(string filename, CHANNEL Ichannel, bool loop, float volume)
{
	if(Ichannel<0||Ichannel>=maxChannel)
	{
		Ichannel = GetNewChannel();
		if(Ichannel<0)
			return NULL;
	}else
		FreeChannel(Ichannel);

	HSTREAM sound = ReadMusic(filename);

	DWORD hr;

	// start play
	hr = BASS_ChannelPlay(sound, TRUE);

	// set volume
	volumeDes[Ichannel] = volume*defaultVolume;
	hr = BASS_ChannelSetAttribute(sound, BASS_ATTRIB_VOL, volumeDes[Ichannel]);

	// set loop
	if(loop)
		hr = BASS_ChannelFlags(sound, BASS_SAMPLE_LOOP, BASS_SAMPLE_LOOP);

	channel[Ichannel] = sound;

	return sound;
}

void BassSoundEngine::PlaySound(string filename, float volume)
{
	HSAMPLE sound = ReadSound(filename);
	HSTREAM channel = BASS_SampleGetChannel(sound, FALSE);
	BASS_ChannelSetAttribute(channel, BASS_ATTRIB_VOL, volume*defaultVolume);
	BASS_ChannelPlay(channel, TRUE);
}

		// play
		void BassSound3D::Play()
		{
			m_channel = BASS_SampleGetChannel(m_handle, FALSE);

			if (m_looping)
			{
				BASS_ChannelFlags(m_channel, BASS_SAMPLE_LOOP, BASS_SAMPLE_LOOP);
			}
			else
			{
				BASS_ChannelFlags(m_channel, 0, BASS_SAMPLE_LOOP);
			}

			BASS_ChannelSetAttribute(m_channel, BASS_ATTRIB_VOL, m_volume);

			BASS_ChannelSet3DAttributes(m_channel, -1, m_minDistance, m_maxDistance, -1, -1, -1);

			BASS_3DVECTOR pos(m_Position.x, m_Position.y, m_Position.z);
			BASS_3DVECTOR vel(m_velocity.x, m_velocity.y, m_velocity.z);
			BASS_ChannelSet3DPosition(m_channel, &pos, NULL, &vel);

			BASS_Apply3D();

			BASS_ChannelPlay(m_channel, FALSE);
		}

/// <summary>
/// Reproduce un sonido a efecto de realizar pruebas (LShift + H).
/// </summary>
void CSoundManager::TestSound ()
{
	DWORD TestSoundId = BASS_SampleLoad(false, "Data/Sounds/Sample/Muerte/swordSwing.wav", 0, 0, 1, BASS_SAMPLE_MONO);

	// Inicializa el canal 
	BASS_SampleGetChannel(TestSoundId, FALSE);
	// Añade la configuración del canal 
	m_bIsOk = BASS_ChannelSetAttribute(TestSoundId, BASS_ATTRIB_VOL, 100)?true:false;

	// Asigna propiedad de loop
	//BASS_ChannelFlags(TestSoundId, BASS_SAMPLE_LOOP, BASS_SAMPLE_LOOP); // set LOOP flag

	// Generador de float aleatorio dentro del siguiente rango [-60....0....+60]  
	//float randomSemitoneValue = (rand() % ((-60) - 60 + 1)) + (-60);


	// TO DO: No funciona
	//bool worked = BASS_ChannelSetAttribute(TestSoundId,BASS_ATTRIB_TEMPO_PITCH,randomSemitoneValue)?true:false;

	//if (worked == false)
	//{
	//	int errorCode = BASS_ErrorGetCode();
	//	errorCode = 0;
	//}


	// Reproducción del canal 
	BASS_ChannelPlay(TestSoundId, FALSE);
}

pascal OSStatus DirEventHandler(EventHandlerCallRef inHandlerRef, EventRef inEvent, void *inUserData)
{
	DWORD srcChan=BASS_FX_TempoGetSource(chan);
	float dir;
	BASS_ChannelGetAttribute(srcChan, BASS_ATTRIB_REVERSE_DIR, &dir);

	if(dir<0){
		BASS_ChannelSetAttribute(srcChan, BASS_ATTRIB_REVERSE_DIR, BASS_FX_RVS_FORWARD);
		SetControlText(16, "Playing Direction - Forward");
	}else{
		BASS_ChannelSetAttribute(srcChan, BASS_ATTRIB_REVERSE_DIR, BASS_FX_RVS_REVERSE);
		SetControlText(16,"Playing Direction - Reverse");
	}

	return noErr;
}

/*
	Next song
*/
VOID Application::next()
{
	INT allSongs = playlist.songs.size();		//всего песен
	INT next = 0;						//след играющая песня
	if (allSongs > 0)
	{
		//Поиск текущей играемой песни
		for (INT i = 0; i < allSongs; i++)
		{
			if (hStream == playlist.songs[i].hStream)
			{
				next++;
				break;
			}
			next++;
		}
		//Если при нажатии на NextSong достигнут конец списка, перевести указатель на начало списка
		if (next + 1 > allSongs)
			next = 0;

		stop(hStream);								//остановка потока
		hStream = playlist.songs[next].hStream;		//загрузка следующей песни в поток
		secPlaying = 0;								//сброс проигранных секунд
		setRangeTrackBarPlaySong(hStream);			//установка диапазона TrackBar под играющую песню 
		equalizer.SetFX(hStream);					
		play(hStream);								//воспроизвести поток
		SetTimer(GetParent(hTBPlayingSong), id_timer, 1000, 0);	//Запуск таймера 
		SendMessage(playlist.hPlayList, LB_SETCURSEL, next, 0);	//выделяет текущую песня в плейлисте
		BASS_ChannelSetAttribute(hStream, BASS_ATTRIB_VOL, numVolume);
	}
}

void KNMusicBackendBassThread::play()
{
    //Check:
    // 1. The state is already playing.
    // 2. The channel is null.
    if(m_state==Playing || (!m_channel))
    {
        return;
    }
    //Start the position updater.
    m_positionUpdater->start();
    //Check the playing state before.
    if(m_state==Stopped)
    {
        //Reset the position to fit track playing.
        setPosition(0);
        //Set the volume to the last volume, because of the reset, the
        //volume is back to 1.0.
        BASS_ChannelSetAttribute(m_channel, BASS_ATTRIB_VOL, m_volume);
    }
    //Play the thread.
    BASS_ChannelPlay(m_channel, FALSE);
    //Update the state.
    setPlayingState(Playing);
}

/*
	Play
*/
VOID Application::play(HSTREAM stream)
{
	BASS_Start();
	BASS_ChannelPlay(stream, TRUE);
	equalizer.SetFX(stream);
	BASS_ChannelSetAttribute(stream, BASS_ATTRIB_VOL, numVolume);
}

void setup_BASS()
{
  int i;
  if (HIWORD(BASS_GetVersion())!=BASSVERSION) {
    printf("An incorrect version of BASS was loaded");
    return;
  }
  // setup output - default device
  if (!BASS_Init(-1,44100,0,0,NULL))
    exit(0);

    // this could probably be a simple for loop, but can't figure it out yet
    // TODO sprintf can be used to make the filenames in a for loop (if wanted)
    sounds[0] = BASS_StreamCreateFile(FALSE, "./sound/bang6.mp3", 0, 0, 0);
    sounds[1] = BASS_StreamCreateFile(FALSE, "./sound/bang2.mp3", 0, 0, 0);
    sounds[2] = BASS_StreamCreateFile(FALSE, "./sound/bang3.mp3", 0, 0, 0);
    sounds[3] = BASS_StreamCreateFile(FALSE, "./sound/bang0.mp3", 0, 0, 0);
    sounds[4] = BASS_StreamCreateFile(FALSE, "./sound/bang3.mp3", 0, 0, 0);
    sounds[5] = BASS_StreamCreateFile(FALSE, "./sound/bang4.mp3", 0, 0, 0);
    sounds[6] = BASS_StreamCreateFile(FALSE, "./sound/bang6.mp3", 0, 0, 0);
    sounds[7] = BASS_StreamCreateFile(FALSE, "./sound/fizz_out.wav", 0, 0, 0);
    sounds[8] = BASS_StreamCreateFile(FALSE, "./sound/1812.wav", 0, 0, 0);
    sounds[9] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[10] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[11] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[12] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[13] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[14] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    sounds[15] = BASS_StreamCreateFile(FALSE, "./sound/launch8.mp3", 0, 0, 0);
    BASS_ChannelSetAttribute(sounds[7], BASS_ATTRIB_VOL, .2);
}

void KNMusicBackendBassThread::setVolume(const int &volumeSize)
{
    float channelVolume=(float)volumeSize/100;
    BASS_ChannelSetAttribute(m_channel, BASS_ATTRIB_VOL, channelVolume);
    //Backup the volume
    m_lastVolume=channelVolume;
}

/*
	WM_COMMAND
*/
VOID DlgPlayList::Cls_OnCommand(HWND hwnd, INT id, HWND hwndCtl, UINT codeNotify)
{
	switch (id)
	{
		case IDC_PLAYLIST:
		{
			if (codeNotify == LBN_DBLCLK)
			{
				INT idx = SendMessage(hPlayList, LB_GETCURSEL, 0, 0);			//получение индекса выделенного элемента
				Application::_this->hStream = songs[idx].hStream;				//присвоение основному потоку поток выбранного элемента
				Application::_this->secPlaying = 0;								//обнуление секунд
				Application::_this->setRangeTrackBarPlaySong(Application::_this->hStream);		//установка диапазона для полосы прокурутки
				DlgEqualizer::_this->SetFX(Application::_this->hStream);		//установка настроек для каналов регуляции звучания
				BASS_Stop();			//остановка потока
				BASS_ChannelStop(Application::_this->hStream);		//остановка канала
				BASS_Start();			//запуск потока
				BASS_ChannelPlay(Application::_this->hStream, TRUE);	//запуск канала
				SetTimer(GetParent(hDlg), Application::_this->id_timer, 1000, 0);			//запуск таймера для времени проигрывания
				SetTimer(GetParent(hDlg), Application::_this->idTimerBySpectr, 100, 0);		//запуск таймера для спектра
				BASS_ChannelSetAttribute(Application::_this->hStream, BASS_ATTRIB_VOL, Application::_this->numVolume);
			}
			break;
		}
		case IDC_ADDSONG:
		{
			SendMessage(GetParent(hwnd), WM_COMMAND, IDC_ADDSONG, 0);
			break;
		}
		default:
			break;
	}
}