New QCameraInfo class.

The class allows to get the list of available cameras on the system as
well as getting some static information about them such as their unique
ID, display name, physical position and sensor orientation.

This makes QCamera::availableDevices() and QCamera::deviceDescription()
obsolete.

This patch contains the API, documentation and auto-tests but not the
actual implementation by each backend (except for retrieving the default
camera device).

[ChangeLog][QtMultimedia] Added new QCameraInfo class
[ChangeLog][QtMultimedia] QCamera: availableDevices() and
deviceDescription() are deprecated, use QCameraInfo instead

Change-Id: I64fd65729ab26a789468979ed5444ee90bb82cd0
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
This commit is contained in:
Yoann Lopes
2014-01-22 16:18:42 +01:00
committed by The Qt Project
parent d964388b38
commit b28ee24628
54 changed files with 2218 additions and 154 deletions

View File

@@ -44,12 +44,10 @@
#include "../mockservice.h"
class MockServicePlugin1 : public QMediaServiceProviderPlugin,
public QMediaServiceSupportedFormatsInterface,
public QMediaServiceSupportedDevicesInterface
public QMediaServiceSupportedFormatsInterface
{
Q_OBJECT
Q_INTERFACES(QMediaServiceSupportedFormatsInterface)
Q_INTERFACES(QMediaServiceSupportedDevicesInterface)
Q_PLUGIN_METADATA(IID "org.qt-project.qt.mediaserviceproviderfactory/5.0" FILE "mockserviceplugin1.json")
public:
QStringList keys() const
@@ -87,21 +85,6 @@ public:
{
return QStringList("audio/ogg");
}
QList<QByteArray> devices(const QByteArray &service) const
{
Q_UNUSED(service);
QList<QByteArray> res;
return res;
}
QString deviceDescription(const QByteArray &service, const QByteArray &device)
{
if (devices(service).contains(device))
return QString(device)+" description";
else
return QString();
}
};
#include "mockserviceplugin1.moc"

View File

@@ -44,17 +44,22 @@
#include "../mockservice.h"
class MockServicePlugin3 : public QMediaServiceProviderPlugin,
public QMediaServiceSupportedDevicesInterface
public QMediaServiceSupportedDevicesInterface,
public QMediaServiceDefaultDeviceInterface,
public QMediaServiceCameraInfoInterface
{
Q_OBJECT
Q_INTERFACES(QMediaServiceSupportedDevicesInterface)
Q_INTERFACES(QMediaServiceDefaultDeviceInterface)
Q_INTERFACES(QMediaServiceCameraInfoInterface)
Q_PLUGIN_METADATA(IID "org.qt-project.qt.mediaserviceproviderfactory/5.0" FILE "mockserviceplugin3.json")
public:
QStringList keys() const
{
return QStringList() <<
QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER) <<
QLatin1String(Q_MEDIASERVICE_AUDIOSOURCE);
QLatin1String(Q_MEDIASERVICE_AUDIOSOURCE) <<
QLatin1String(Q_MEDIASERVICE_CAMERA);
}
QMediaService* create(QString const& key)
@@ -70,12 +75,26 @@ public:
delete service;
}
QByteArray defaultDevice(const QByteArray &service) const
{
if (service == Q_MEDIASERVICE_AUDIOSOURCE)
return "audiosource1";
if (service == Q_MEDIASERVICE_CAMERA)
return "frontcamera";
return QByteArray();
}
QList<QByteArray> devices(const QByteArray &service) const
{
QList<QByteArray> res;
if (service == QByteArray(Q_MEDIASERVICE_AUDIOSOURCE))
if (service == Q_MEDIASERVICE_AUDIOSOURCE)
res << "audiosource1" << "audiosource2";
if (service == Q_MEDIASERVICE_CAMERA)
res << "frontcamera";
return res;
}
@@ -86,6 +105,22 @@ public:
else
return QString();
}
QCamera::Position cameraPosition(const QByteArray &device) const
{
if (device == "frontcamera")
return QCamera::FrontFace;
return QCamera::UnspecifiedPosition;
}
int cameraOrientation(const QByteArray &device) const
{
if (device == "frontcamera")
return 270;
return 0;
}
};
#include "mockserviceplugin3.moc"

View File

@@ -1,4 +1,4 @@
{
"Keys": ["mockserviceplugin3"],
"Services": ["org.qt-project.qt.mediaplayer", "org.qt-project.qt.audiosource"]
"Services": ["org.qt-project.qt.mediaplayer", "org.qt-project.qt.audiosource", "org.qt-project.qt.camera"]
}

View File

@@ -0,0 +1,118 @@
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qmediaserviceproviderplugin.h>
#include <qmediaservice.h>
#include "../mockservice.h"
class MockServicePlugin5 : public QMediaServiceProviderPlugin,
public QMediaServiceSupportedDevicesInterface,
public QMediaServiceDefaultDeviceInterface,
public QMediaServiceCameraInfoInterface
{
Q_OBJECT
Q_INTERFACES(QMediaServiceSupportedDevicesInterface)
Q_INTERFACES(QMediaServiceDefaultDeviceInterface)
Q_INTERFACES(QMediaServiceCameraInfoInterface)
Q_PLUGIN_METADATA(IID "org.qt-project.qt.mediaserviceproviderfactory/5.0" FILE "mockserviceplugin5.json")
public:
QStringList keys() const
{
return QStringList() << QLatin1String(Q_MEDIASERVICE_CAMERA);
}
QMediaService* create(QString const& key)
{
if (keys().contains(key))
return new MockMediaService("MockServicePlugin5");
else
return 0;
}
void release(QMediaService *service)
{
delete service;
}
QByteArray defaultDevice(const QByteArray &service) const
{
if (service == Q_MEDIASERVICE_CAMERA)
return "backcamera";
return QByteArray();
}
QList<QByteArray> devices(const QByteArray &service) const
{
QList<QByteArray> res;
if (service == Q_MEDIASERVICE_CAMERA)
res << "backcamera" << "somecamera";
return res;
}
QString deviceDescription(const QByteArray &service, const QByteArray &device)
{
if (devices(service).contains(device))
return QString(device)+" description";
else
return QString();
}
QCamera::Position cameraPosition(const QByteArray &device) const
{
if (device == "backcamera")
return QCamera::BackFace;
return QCamera::UnspecifiedPosition;
}
int cameraOrientation(const QByteArray &device) const
{
if (device == "backcamera")
return 90;
return 0;
}
};
#include "mockserviceplugin5.moc"

View File

@@ -0,0 +1,4 @@
{
"Keys": ["mockserviceplugin5"],
"Services": ["org.qt-project.qt.camera"]
}

View File

@@ -0,0 +1,23 @@
TARGET = mockserviceplugin5
QT += multimedia-private
PLUGIN_TYPE=mediaservice
PLUGIN_CLASS_NAME = MockServicePlugin5
load(qt_plugin)
DESTDIR = ../$${PLUGIN_TYPE}
win32 {
CONFIG(debug, debug|release) {
DESTDIR = ../debug/$${PLUGIN_TYPE}
} else {
DESTDIR = ../release/$${PLUGIN_TYPE}
}
}
HEADERS += ../mockservice.h
SOURCES += mockserviceplugin5.cpp
OTHER_FILES += mockserviceplugin5.json
target.path = $$[QT_INSTALL_TESTS]/tst_qmediaserviceprovider/$${PLUGIN_TYPE}
DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0

View File

@@ -6,6 +6,7 @@ SUBDIRS += \
mockserviceplugin2 \
mockserviceplugin3 \
mockserviceplugin4 \
mockserviceplugin5 \
test
# no special install rule for subdir

View File

@@ -52,6 +52,8 @@
#include <qmediaservice.h>
#include <qmediaplayer.h>
#include <qaudiorecorder.h>
#include <qcamera.h>
#include <qcamerainfo.h>
QT_USE_NAMESPACE
@@ -83,6 +85,9 @@ private slots:
void testHasSupport();
void testSupportedMimeTypes();
void testProviderHints();
void testDefaultDevice();
void testAvailableDevices();
void testCameraInfo();
private:
QObjectList plugins;
@@ -195,6 +200,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::Null);
QVERIFY(hint.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QVERIFY(hint.mimeType().isEmpty());
QVERIFY(hint.codecs().isEmpty());
QCOMPARE(hint.features(), 0);
@@ -206,6 +212,18 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::Device);
QCOMPARE(hint.device(), deviceName);
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QVERIFY(hint.mimeType().isEmpty());
QVERIFY(hint.codecs().isEmpty());
QCOMPARE(hint.features(), 0);
}
{
QMediaServiceProviderHint hint(QCamera::FrontFace);
QVERIFY(!hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::CameraPosition);
QVERIFY(hint.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::FrontFace);
QVERIFY(hint.mimeType().isEmpty());
QVERIFY(hint.codecs().isEmpty());
QCOMPARE(hint.features(), 0);
@@ -216,6 +234,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::SupportedFeatures);
QVERIFY(hint.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QVERIFY(hint.mimeType().isEmpty());
QVERIFY(hint.codecs().isEmpty());
QCOMPARE(hint.features(), QMediaServiceProviderHint::LowLatencyPlayback);
@@ -226,6 +245,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::SupportedFeatures);
QVERIFY(hint.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QVERIFY(hint.mimeType().isEmpty());
QVERIFY(hint.codecs().isEmpty());
QCOMPARE(hint.features(), QMediaServiceProviderHint::RecordingSupport);
@@ -240,6 +260,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint.isNull());
QCOMPARE(hint.type(), QMediaServiceProviderHint::ContentType);
QVERIFY(hint.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QCOMPARE(hint.mimeType(), mimeType);
QCOMPARE(hint.codecs(), codecs);
@@ -248,6 +269,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint2.isNull());
QCOMPARE(hint2.type(), QMediaServiceProviderHint::ContentType);
QVERIFY(hint2.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QCOMPARE(hint2.mimeType(), mimeType);
QCOMPARE(hint2.codecs(), codecs);
@@ -257,6 +279,7 @@ void tst_QMediaServiceProvider::testProviderHints()
QVERIFY(!hint3.isNull());
QCOMPARE(hint3.type(), QMediaServiceProviderHint::ContentType);
QVERIFY(hint3.device().isEmpty());
QCOMPARE(hint.cameraPosition(), QCamera::UnspecifiedPosition);
QCOMPARE(hint3.mimeType(), mimeType);
QCOMPARE(hint3.codecs(), codecs);
@@ -271,6 +294,99 @@ void tst_QMediaServiceProvider::testProviderHints()
}
}
void tst_QMediaServiceProvider::testDefaultDevice()
{
QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();
if (provider == 0)
QSKIP("No default provider");
QCOMPARE(provider->defaultDevice(Q_MEDIASERVICE_AUDIOSOURCE), QByteArray("audiosource1"));
QCOMPARE(provider->defaultDevice(Q_MEDIASERVICE_CAMERA), QByteArray("frontcamera"));
}
void tst_QMediaServiceProvider::testAvailableDevices()
{
QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();
if (provider == 0)
QSKIP("No default provider");
QList<QByteArray> devices = provider->devices(Q_MEDIASERVICE_AUDIOSOURCE);
QCOMPARE(devices.count(), 2);
QCOMPARE(devices.at(0), QByteArray("audiosource1"));
QCOMPARE(devices.at(1), QByteArray("audiosource2"));
devices = provider->devices(Q_MEDIASERVICE_CAMERA);
QCOMPARE(devices.count(), 3);
QCOMPARE(devices.at(0), QByteArray("frontcamera"));
QCOMPARE(devices.at(1), QByteArray("backcamera"));
QCOMPARE(devices.at(2), QByteArray("somecamera"));
}
void tst_QMediaServiceProvider::testCameraInfo()
{
QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();
if (provider == 0)
QSKIP("No default provider");
QCOMPARE(provider->cameraPosition("backcamera"), QCamera::BackFace);
QCOMPARE(provider->cameraOrientation("backcamera"), 90);
QCOMPARE(provider->cameraPosition("frontcamera"), QCamera::FrontFace);
QCOMPARE(provider->cameraOrientation("frontcamera"), 270);
QCOMPARE(provider->cameraPosition("somecamera"), QCamera::UnspecifiedPosition);
QCOMPARE(provider->cameraOrientation("somecamera"), 0);
{
QCamera camera;
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin3"));
}
{
QCamera camera(QCameraInfo::defaultCamera());
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin3"));
}
{
QCamera camera(QCameraInfo::availableCameras().at(0));
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin3"));
}
{
QCamera camera(QCameraInfo::availableCameras().at(1));
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin5"));
}
{
QCamera camera(QCameraInfo::availableCameras().at(2));
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin5"));
}
{
QCamera camera(QCamera::FrontFace);
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin3"));
}
{
QCamera camera(QCamera::BackFace);
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin5"));
}
{
QCamera camera(QCamera::UnspecifiedPosition);
QVERIFY(camera.service());
QCOMPARE(camera.service()->objectName(), QLatin1String("MockServicePlugin3"));
}
}
QTEST_MAIN(tst_QMediaServiceProvider)
#include "tst_qmediaserviceprovider.moc"