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Ubuntu SDK 中没有 Qt 音频引擎

tag-icon • tag-icon 14.04 sound qt ubuntu-sdk qml
Ubuntu SDK 中没有 Qt 音频引擎

我使用的是 Ubuntu 14.04。我按照 Ubuntu 网站上的说明顺利安装了 Ubuntu SDK。我创建了一个新的 QML 项目。我想创建一个使用 Qt Audio Engine 的应用程序。这是我测试 Audio Engine 的代码：

import QtQuick 2.0
import Ubuntu.Components 0.1
import QtAudioEngine 1.0
import "ui"

MainView {
// objectName for functional testing purposes (autopilot-qt5)
objectName: "mainView"

// Note! applicationName needs to match the "name" field of the click manifest
applicationName: "com.ubuntu.developer..AudioEngineTest"

/*
 This property enables the application to change orientation
 when the device is rotated. The default is false.
*/
//automaticOrientation: true

width: units.gu(100)
height: units.gu(75)

AudioEngine {

}

Tabs {
    id: tabs

    HelloTab {
        objectName: "helloTab"
    }

    WorldTab {
        objectName: "worldTab"
    }
}
}

当我尝试运行该程序时，出现错误：未安装模块“QtAudioEngine”。

Qt Audio Engine 位于当前的 Ubuntu QML API 中。为什么它不在 SDK 中？我应该自己安装它还是由开发团队添加？

答案1

我使用了这个修改过的代码版本（对标签做了一些小改动）来测试缺少的内容：

import QtQuick 2.0
import Ubuntu.Components 0.1
import QtAudioEngine 1.0
import "ui"

MainView {
    // objectName for functional testing purposes (autopilot-qt5)
    objectName: "mainView"

    // Note! applicationName needs to match the "name" field of the click manifest
    applicationName: "com.ubuntu.developer.AudioEngineTest"

    /*
     This property enables the application to change orientation
     when the device is rotated. The default is false.
    */
    //automaticOrientation: true

    width: units.gu(100)
    height: units.gu(75)

    AudioEngine {

    }

    Tabs {
        id: tabs

        Tab {
            title: "helloTab"
        }

        Tab {
            title: "worldTab"
        }
    }
}

您基本上需要为桌面目标安装以下包：

sudo apt-get install qtdeclarative5-qtaudioengine-plugin

对于 Ubuntu Touch：

sudo apt-get install qtdeclarative5-qtaudioengine-touch-plugin

最后，你可以用 qmlscene 进行测试：

$ qmlscene ./audio.qml
Module 'QtAudioEngine' does not contain a module identifier directive - it cannot be protected from external registrations.
unity::action::ActionManager::ActionManager(QObject*):
    Could not determine application identifier. HUD will not work properly.
    Provide your application identifier in $APP_ID environment variable.
default openal device =  OpenAL Soft 
device list: 
     OpenAL Soft 
AudioEngine begin initialization 
creating default category 
init samples 0 
init sounds 0 
AudioEngine ready.

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