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Fix audio-visualizer example 

Pick-to: 6.2 6.4
Fixes: QTCREATORBUG-27852
Change-Id: Icc10aa51f54a7ff19dcff2349048b436f273d6bf
Reviewed-by: Janne Koskinen <janne.p.koskinen@qt.io>
Reviewed-by: Antti Määttä <antti.maatta@qt.io>
This commit is contained in:
Tomi Korpipaa 2022-10-19 13:10:27 +03:00
parent e06bccdc93
commit be9ccff07d
3 changed files with 23 additions and 22 deletions
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4
examples/qt3d/audio-visualizer-qml/Visualizer.qml
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@ -10,9 +10,10 @@ Entity {
id: sceneRoot id: sceneRoot
property int barRotationTimeMs: 1 property int barRotationTimeMs: 1
property int numberOfBars: 1 property int numberOfBars: 1
property string animationState: "stopped" property string animationState
property real titleStartAngle: 95 property real titleStartAngle: 95
property real titleStopAngle: 5 property real titleStopAngle: 5
property bool started: false
onAnimationStateChanged: { onAnimationStateChanged: {
if (animationState == "playing") { if (animationState == "playing") {
@ -73,6 +74,7 @@ Entity {
progressTransformAnimation.duration = mediaPlayer.duration progressTransformAnimation.duration = mediaPlayer.duration
mainview.state = "playing" mainview.state = "playing"
progressTransformAnimation.start() progressTransformAnimation.start()
started = true
} }
//![0] //![0]

1
examples/qt3d/audio-visualizer-qml/main.cpp
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@ -10,6 +10,7 @@
int main(int argc, char* argv[]) int main(int argc, char* argv[])
{ {
qputenv("QML_XHR_ALLOW_FILE_READ", "1");
#ifdef Q_OS_ANDROID #ifdef Q_OS_ANDROID
QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif #endif

40
examples/qt3d/audio-visualizer-qml/main.qml
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@ -1,10 +1,10 @@
// Copyright (C) 2017 The Qt Company Ltd. // Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick 2.0 import QtQuick
import QtQuick.Scene3D 2.0 import QtQuick.Scene3D
import QtQuick.Layouts 1.2 import QtQuick.Layouts
import QtMultimedia 5.0 import QtMultimedia
Item { Item {
id: mainview id: mainview
@ -70,30 +70,25 @@ Item {
//![0] //![0]
MediaPlayer { MediaPlayer {
id: mediaPlayer id: mediaPlayer
autoPlay: true
volume: 0.5
source: "qrc:/music/tiltshifted_lost_neon_sun.mp3" source: "qrc:/music/tiltshifted_lost_neon_sun.mp3"
audioOutput: AudioOutput {}
//![0] //![0]
onStatusChanged: { onMediaStatusChanged: {
if (status == MediaPlayer.EndOfMedia) //{ if (mediaStatus == MediaPlayer.EndOfMedia) {
state = "stopped" mainview.state = "stopped"
} } else if (mediaStatus == MediaPlayer.LoadedMedia && !visualizer.started) {
// Load the pre-calculated magnitude data for the visualizer
onError: console.error("error with audio " + mediaPlayer.error) var request = new XMLHttpRequest()
request.responseType = 'arraybuffer'
onDurationChanged: { request.onreadystatechange = function() {
// Load the pre-calculated magnitude data for the visualizer
var request = new XMLHttpRequest()
request.responseType = 'arraybuffer'
request.onreadystatechange = function() {
if (request.readyState === XMLHttpRequest.DONE) { if (request.readyState === XMLHttpRequest.DONE) {
if (request.status == 200 || request.status == 0) { if (request.status == 200 || request.status == 0) {
var arrayBuffer = request.response var arrayBuffer = request.response
if (arrayBuffer) { if (arrayBuffer) {
magnitudeArray = new Uint16Array(arrayBuffer) magnitudeArray = new Uint16Array(arrayBuffer)
visualizer.startVisualization() visualizer.startVisualization()
} }
} else { } else {
console.warn("Couldn't load magnitude data for bars.") console.warn("Couldn't load magnitude data for bars.")
} }
@ -101,10 +96,13 @@ Item {
} }
}; };
request.open('GET', magnitudeDataSourceFile, true) request.open('GET', magnitudeDataSourceFile, true)
request.send(null) request.send(null)
}
} }
onErrorStringChanged: console.error("error with audio " + errorString)
function getNextAudioLevel(offsetMs) { function getNextAudioLevel(offsetMs) {
if (magnitudeArray === null) if (magnitudeArray === null)
return 0.0; return 0.0;