slapin/qtmultimedia
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add AudioEngine with new implementation

Browse Source 
Change-Id: I5eebe662ecbce9814ed3e763db56df9be737d11f
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
This commit is contained in:
Ling Hu
2012-01-18 17:17:54 +10:00
committed by Qt by Nokia
parent 262f397e3e
commit 809bbc35c6
39 changed files with 6592 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
examples/audioengine/audioengine.pro Normal file
View File

@@ -0,0 +1,7 @@
TEMPLATE = subdirs
# These examples contain no C++ and can simply be copied
SUBDIRS =
sources.files = qml/*
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/declarative/audioengine
INSTALLS += sources

193
examples/audioengine/qml/audioengine.qml Normal file
View File

@@ -0,0 +1,193 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtAudioEngine 1.0
import QtQuick 2.0
import "content"
Rectangle {
color:"white"
id: root
width: 300
height: 500
property int radius : 100
property real twoPi : Math.PI + Math.PI
MyAudioEngine {
id:audioEngine
listener.position : Qt.vector3d(observer.x, observer.y, 0);
}
Item {
id: circle
x: root.width / 2
y: root.height / 2
property real percent: 0
SequentialAnimation on percent {
id: circleAnim1
loops: Animation.Infinite
running: true
NumberAnimation {
duration: 8000
from: 0
to: 1
}
}
}
Item {
id: holder
x: circle.x - Math.sin(circle.percent * root.twoPi) * root.radius - 50
y: circle.y + Math.cos(circle.percent * root.twoPi) * root.radius + 50
}
Rectangle {
color:"green"
id: observer
width: 16
height: 16
x: circle.x - width / 2
y: circle.y - height / 2
}
Rectangle {
color:"red"
id: starship
width: 32
height: 32
x: holder.x - width / 2
y: holder.y - height / 2
}
MouseArea {
anchors.fill: parent
onClicked: {
audioEngine.sounds["effects"].play(Qt.vector3d(holder.x, holder.y, 0));
}
}
SoundInstance {
id: shipSound
engine:audioEngine
sound:"shipengine"
position: Qt.vector3d(holder.x, holder.y, 0)
direction: {
var a = (starship.rotation / 360) * root.twoPi;
return Qt.vector3d(Math.sin(a), -Math.cos(a), 0);
}
velocity: {
var speed = root.twoPi * root.radius / 4;
return shipSound.direction * speed;
}
Component.onCompleted: shipSound.play()
}
//Category Volume Control
Rectangle {
property variant volumeCtrl: audioEngine.categories["sfx"];
id: volumeBar
x: 10
y: 10
width: 280
height: 22
color: "darkgray"
Rectangle {
id: volumeTracker
x: 0
y: 0
width: volumeBar.volumeCtrl.volume * parent.width;
height: parent.height
color: "lightgreen"
}
Text {
text: " volume:" + volumeBar.volumeCtrl.volume * 100 +"%";
font.pointSize: 16;
font.italic: true;
color: "black"
anchors.fill: parent
}
MouseArea {
anchors.fill: parent
property bool m:false
onPressed: {
m = true;
updateVolume(mouse);
}
onReleased: {
m = false;
}
onPositionChanged: {
if (m) {
updateVolume(mouse);
}
}
function updateVolume(mouse) {
volumeBar.volumeCtrl.volume = Math.min(1, Math.max(0, mouse.x / (volumeBar.width - 1)));
}
}
}
//Information display
Item {
x:10
y:32
Text {
text: " [live instances] = " + audioEngine.liveInstances;
font.pointSize: 14;
font.italic: true;
color: "black"
anchors.fill: parent
}
}
Item {
x:10
y:60
Text {
text: " [loading]=" + (audioEngine.loading ? "true" : "false");
font.pointSize: 16;
font.italic: true;
color: "black"
anchors.fill: parent
}
}
}

16
examples/audioengine/qml/audioengine.qmlproject Normal file
View File

@@ -0,0 +1,16 @@
import QmlProject 1.1
Project {
mainFile: "audioengine.qml"
/* Include .qml, .js, and image files from current directory and subdirectories */
QmlFiles {
directory: "."
}
JavaScriptFiles {
directory: "."
}
ImageFiles {
directory: "."
}
}

131
examples/audioengine/qml/content/MyAudioEngine.qml Normal file
View File

@@ -0,0 +1,131 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtAudioEngine 1.0
import QtQuick 2.0
AudioEngine {
AudioCategory {
name:"sfx"
volume: 1
}
AudioCategory {
name:"music"
volume: 1
}
AttenuationModelInverse {
name:"default"
start: 20
end: 1000
rolloff: 1
}
AttenuationModelLinear {
name:"shipengine"
start: 20
end: 180
}
AudioSample {
name:"fire"
source: "fire-03-loop.wav"
preloaded:true
}
AudioSample {
name:"explosion"
source: "explosion-02.wav"
}
AudioSample {
name:"lava"
source: "lava-bubbling-01.wav"
}
AudioSample {
name:"water"
source: "running-water-01.wav"
}
Sound {
name:"shipengine"
attenuationModel:"shipengine"
category:"sfx"
PlayVariation {
looping:true
sample:"fire"
maxGain:0.9
minGain:0.8
}
}
Sound {
name:"effects"
category:"sfx"
PlayVariation {
sample:"lava"
maxGain:1.5
minGain:1.2
maxPitch:2.0
minPitch:0.5
}
PlayVariation {
sample:"explosion"
maxGain:1.1
minGain:0.7
maxPitch:1.5
minPitch:0.5
}
PlayVariation {
sample:"water"
maxGain:1.5
minGain:1.2
}
}
dopplerFactor: 1
speedOfSound: 343.33
listener.up:"0,0,1"
listener.position:"0,0,0"
listener.velocity:"0,0,0"
listener.direction:"0,1,0"
}

1
examples/examples.pro
View File

@@ -24,3 +24,4 @@ TEMPLATE = subdirs
QT += widgets
}
contains(config_test_openal, yes): SUBDIRS += audioengine