2732e23887
- Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: Ied06887225df341064c12bcc14c259ae74116f2e Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
335 lines
11 KiB
C++
335 lines
11 KiB
C++
/****************************************************************************
|
|
**
|
|
** 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.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL21$
|
|
** 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 or version 3 as published by the Free
|
|
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
|
|
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
|
|
** following information to ensure the GNU Lesser General Public License
|
|
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
|
|
** 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.
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include "camerabincontrol.h"
|
|
#include "camerabincontainer.h"
|
|
#include "camerabinaudioencoder.h"
|
|
#include "camerabinvideoencoder.h"
|
|
#include "camerabinimageencoder.h"
|
|
#include "camerabinresourcepolicy.h"
|
|
|
|
#include <QtCore/qdebug.h>
|
|
#include <QtCore/qfile.h>
|
|
#include <QtCore/qmetaobject.h>
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
|
|
//#define CAMEABIN_DEBUG 1
|
|
#define ENUM_NAME(c,e,v) (c::staticMetaObject.enumerator(c::staticMetaObject.indexOfEnumerator(e)).valueToKey((v)))
|
|
|
|
CameraBinControl::CameraBinControl(CameraBinSession *session)
|
|
:QCameraControl(session),
|
|
m_session(session),
|
|
m_state(QCamera::UnloadedState),
|
|
m_status(QCamera::UnloadedStatus),
|
|
m_reloadPending(false)
|
|
{
|
|
connect(m_session, SIGNAL(stateChanged(QCamera::State)),
|
|
this, SLOT(updateStatus()));
|
|
|
|
connect(m_session, SIGNAL(viewfinderChanged()),
|
|
SLOT(reloadLater()));
|
|
connect(m_session, SIGNAL(readyChanged(bool)),
|
|
SLOT(reloadLater()));
|
|
connect(m_session, SIGNAL(error(int,QString)),
|
|
SLOT(handleCameraError(int,QString)));
|
|
|
|
m_resourcePolicy = new CamerabinResourcePolicy(this);
|
|
connect(m_resourcePolicy, SIGNAL(resourcesGranted()),
|
|
SLOT(handleResourcesGranted()));
|
|
connect(m_resourcePolicy, SIGNAL(resourcesDenied()),
|
|
SLOT(handleResourcesLost()));
|
|
connect(m_resourcePolicy, SIGNAL(resourcesLost()),
|
|
SLOT(handleResourcesLost()));
|
|
|
|
connect(m_session, SIGNAL(busyChanged(bool)),
|
|
SLOT(handleBusyChanged(bool)));
|
|
}
|
|
|
|
CameraBinControl::~CameraBinControl()
|
|
{
|
|
}
|
|
|
|
QCamera::CaptureModes CameraBinControl::captureMode() const
|
|
{
|
|
return m_session->captureMode();
|
|
}
|
|
|
|
void CameraBinControl::setCaptureMode(QCamera::CaptureModes mode)
|
|
{
|
|
if (m_session->captureMode() != mode) {
|
|
m_session->setCaptureMode(mode);
|
|
|
|
if (m_state == QCamera::ActiveState) {
|
|
m_resourcePolicy->setResourceSet(
|
|
captureMode() == QCamera::CaptureStillImage ?
|
|
CamerabinResourcePolicy::ImageCaptureResources :
|
|
CamerabinResourcePolicy::VideoCaptureResources);
|
|
#if (GST_VERSION_MAJOR == 0) && ((GST_VERSION_MINOR < 10) || (GST_VERSION_MICRO < 23))
|
|
//due to bug in v4l2src, it's necessary to reload camera on video caps changes
|
|
//https://bugzilla.gnome.org/show_bug.cgi?id=649832
|
|
reloadLater();
|
|
#endif
|
|
}
|
|
emit captureModeChanged(mode);
|
|
}
|
|
}
|
|
|
|
bool CameraBinControl::isCaptureModeSupported(QCamera::CaptureModes mode) const
|
|
{
|
|
return mode == QCamera::CaptureStillImage || mode == QCamera::CaptureVideo;
|
|
}
|
|
|
|
void CameraBinControl::setState(QCamera::State state)
|
|
{
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << Q_FUNC_INFO << ENUM_NAME(QCamera, "State", state);
|
|
#endif
|
|
if (m_state != state) {
|
|
m_state = state;
|
|
|
|
//special case for stopping the camera while it's busy,
|
|
//it should be delayed until the camera is idle
|
|
if (state == QCamera::LoadedState &&
|
|
m_session->state() == QCamera::ActiveState &&
|
|
m_session->isBusy()) {
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << Q_FUNC_INFO << "Camera is busy, QCamera::stop() is delayed";
|
|
#endif
|
|
emit stateChanged(m_state);
|
|
return;
|
|
}
|
|
|
|
CamerabinResourcePolicy::ResourceSet resourceSet = CamerabinResourcePolicy::NoResources;
|
|
switch (state) {
|
|
case QCamera::UnloadedState:
|
|
resourceSet = CamerabinResourcePolicy::NoResources;
|
|
break;
|
|
case QCamera::LoadedState:
|
|
resourceSet = CamerabinResourcePolicy::LoadedResources;
|
|
break;
|
|
case QCamera::ActiveState:
|
|
resourceSet = captureMode() == QCamera::CaptureStillImage ?
|
|
CamerabinResourcePolicy::ImageCaptureResources :
|
|
CamerabinResourcePolicy::VideoCaptureResources;
|
|
break;
|
|
}
|
|
|
|
m_resourcePolicy->setResourceSet(resourceSet);
|
|
|
|
if (m_resourcePolicy->isResourcesGranted()) {
|
|
//postpone changing to Active if the session is nor ready yet
|
|
if (state == QCamera::ActiveState) {
|
|
if (m_session->isReady()) {
|
|
m_session->setState(state);
|
|
} else {
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << "Camera session is not ready yet, postpone activating";
|
|
#endif
|
|
}
|
|
} else
|
|
m_session->setState(state);
|
|
}
|
|
|
|
emit stateChanged(m_state);
|
|
}
|
|
}
|
|
|
|
QCamera::State CameraBinControl::state() const
|
|
{
|
|
return m_state;
|
|
}
|
|
|
|
void CameraBinControl::updateStatus()
|
|
{
|
|
QCamera::State sessionState = m_session->state();
|
|
QCamera::Status oldStatus = m_status;
|
|
|
|
switch (m_state) {
|
|
case QCamera::UnloadedState:
|
|
m_status = QCamera::UnloadedStatus;
|
|
break;
|
|
case QCamera::LoadedState:
|
|
switch (sessionState) {
|
|
case QCamera::UnloadedState:
|
|
m_status = m_resourcePolicy->isResourcesGranted()
|
|
? QCamera::LoadingStatus
|
|
: QCamera::UnavailableStatus;
|
|
break;
|
|
case QCamera::LoadedState:
|
|
m_status = QCamera::LoadedStatus;
|
|
break;
|
|
case QCamera::ActiveState:
|
|
m_status = QCamera::ActiveStatus;
|
|
break;
|
|
}
|
|
break;
|
|
case QCamera::ActiveState:
|
|
switch (sessionState) {
|
|
case QCamera::UnloadedState:
|
|
m_status = m_resourcePolicy->isResourcesGranted()
|
|
? QCamera::LoadingStatus
|
|
: QCamera::UnavailableStatus;
|
|
break;
|
|
case QCamera::LoadedState:
|
|
m_status = QCamera::StartingStatus;
|
|
break;
|
|
case QCamera::ActiveState:
|
|
m_status = QCamera::ActiveStatus;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (m_status != oldStatus) {
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << "Camera status changed" << ENUM_NAME(QCamera, "Status", m_status);
|
|
#endif
|
|
emit statusChanged(m_status);
|
|
}
|
|
}
|
|
|
|
void CameraBinControl::reloadLater()
|
|
{
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << "CameraBinControl: reload pipeline requested" << ENUM_NAME(QCamera, "State", m_state);
|
|
#endif
|
|
if (!m_reloadPending && m_state == QCamera::ActiveState) {
|
|
m_reloadPending = true;
|
|
|
|
if (!m_session->isBusy()) {
|
|
m_session->setState(QCamera::LoadedState);
|
|
QMetaObject::invokeMethod(this, "delayedReload", Qt::QueuedConnection);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CameraBinControl::handleResourcesLost()
|
|
{
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << Q_FUNC_INFO << ENUM_NAME(QCamera, "State", m_state);
|
|
#endif
|
|
m_session->setState(QCamera::UnloadedState);
|
|
}
|
|
|
|
void CameraBinControl::handleResourcesGranted()
|
|
{
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << Q_FUNC_INFO << ENUM_NAME(QCamera, "State", m_state);
|
|
#endif
|
|
|
|
//camera will be started soon by delayedReload()
|
|
if (m_reloadPending && m_state == QCamera::ActiveState)
|
|
return;
|
|
|
|
if (m_state == QCamera::ActiveState && m_session->isReady())
|
|
m_session->setState(QCamera::ActiveState);
|
|
else if (m_state == QCamera::LoadedState)
|
|
m_session->setState(QCamera::LoadedState);
|
|
}
|
|
|
|
void CameraBinControl::handleBusyChanged(bool busy)
|
|
{
|
|
if (!busy && m_session->state() == QCamera::ActiveState) {
|
|
if (m_state == QCamera::LoadedState) {
|
|
//handle delayed stop() because of busy camera
|
|
m_resourcePolicy->setResourceSet(CamerabinResourcePolicy::LoadedResources);
|
|
m_session->setState(QCamera::LoadedState);
|
|
} else if (m_state == QCamera::ActiveState && m_reloadPending) {
|
|
//handle delayed reload because of busy camera
|
|
m_session->setState(QCamera::LoadedState);
|
|
QMetaObject::invokeMethod(this, "delayedReload", Qt::QueuedConnection);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CameraBinControl::handleCameraError(int errorCode, const QString &errorString)
|
|
{
|
|
emit error(errorCode, errorString);
|
|
setState(QCamera::UnloadedState);
|
|
}
|
|
|
|
void CameraBinControl::delayedReload()
|
|
{
|
|
#ifdef CAMEABIN_DEBUG
|
|
qDebug() << "CameraBinControl: reload pipeline";
|
|
#endif
|
|
if (m_reloadPending) {
|
|
m_reloadPending = false;
|
|
if (m_state == QCamera::ActiveState &&
|
|
m_session->isReady() &&
|
|
m_resourcePolicy->isResourcesGranted()) {
|
|
m_session->setState(QCamera::ActiveState);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CameraBinControl::canChangeProperty(PropertyChangeType changeType, QCamera::Status status) const
|
|
{
|
|
Q_UNUSED(status);
|
|
|
|
switch (changeType) {
|
|
case QCameraControl::CaptureMode:
|
|
case QCameraControl::ImageEncodingSettings:
|
|
case QCameraControl::VideoEncodingSettings:
|
|
case QCameraControl::Viewfinder:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
#define VIEWFINDER_COLORSPACE_CONVERSION 0x00000004
|
|
|
|
bool CameraBinControl::viewfinderColorSpaceConversion() const
|
|
{
|
|
gint flags = 0;
|
|
g_object_get(G_OBJECT(m_session->cameraBin()), "flags", &flags, NULL);
|
|
|
|
return flags & VIEWFINDER_COLORSPACE_CONVERSION;
|
|
}
|
|
|
|
void CameraBinControl::setViewfinderColorSpaceConversion(bool enabled)
|
|
{
|
|
gint flags = 0;
|
|
g_object_get(G_OBJECT(m_session->cameraBin()), "flags", &flags, NULL);
|
|
|
|
if (enabled)
|
|
flags |= VIEWFINDER_COLORSPACE_CONVERSION;
|
|
else
|
|
flags &= ~VIEWFINDER_COLORSPACE_CONVERSION;
|
|
|
|
g_object_set(G_OBJECT(m_session->cameraBin()), "flags", flags, NULL);
|
|
}
|
|
|
|
QT_END_NAMESPACE
|