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Initial copy of QtMultimediaKit.

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2c82d5611655e5967f5c5095af50c0991c4378b2
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Michael Goddard
2011-06-29 13:38:46 +10:00
commit 2a34e88c1e
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src/plugins/gstreamer/camerabin/camerabinimageprocessing.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "camerabinimageprocessing.h"
#include "camerabinsession.h"
CameraBinImageProcessing::CameraBinImageProcessing(CameraBinSession *session)
:QCameraImageProcessingControl(session),
m_session(session)
{
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_AUTO] = QCameraImageProcessing::WhiteBalanceAuto;
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_DAYLIGHT] = QCameraImageProcessing::WhiteBalanceSunlight;
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_CLOUDY] = QCameraImageProcessing::WhiteBalanceCloudy;
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_SUNSET] = QCameraImageProcessing::WhiteBalanceSunset;
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_TUNGSTEN] = QCameraImageProcessing::WhiteBalanceTungsten;
m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_FLUORESCENT] = QCameraImageProcessing::WhiteBalanceFluorescent;
updateColorBalanceValues();
}
CameraBinImageProcessing::~CameraBinImageProcessing()
{
}
void CameraBinImageProcessing::updateColorBalanceValues()
{
if (!GST_IS_COLOR_BALANCE(m_session->cameraBin())) {
// Camerabin doesn't implement gstcolorbalance interface
return;
}
GstColorBalance *balance = GST_COLOR_BALANCE(m_session->cameraBin());
const GList *controls = gst_color_balance_list_channels(balance);
const GList *item;
GstColorBalanceChannel *channel;
gint cur_value;
for (item = controls; item; item = g_list_next (item)) {
channel = (GstColorBalanceChannel *)item->data;
cur_value = gst_color_balance_get_value (balance, channel);
if (!g_ascii_strcasecmp (channel->label, "brightness")) {
m_values[QCameraImageProcessingControl::Brightness] = cur_value;
} else if (!g_ascii_strcasecmp (channel->label, "contrast")) {
m_values[QCameraImageProcessingControl::Contrast] = cur_value;
} else if (!g_ascii_strcasecmp (channel->label, "saturation")) {
m_values[QCameraImageProcessingControl::Saturation] = cur_value;
}
}
}
bool CameraBinImageProcessing::setColorBalanceValue(const QString& channel, int value)
{
if (!GST_IS_COLOR_BALANCE(m_session->cameraBin())) {
// Camerabin doesn't implement gstcolorbalance interface
return false;
}
GstColorBalance *balance = GST_COLOR_BALANCE(m_session->cameraBin());
const GList *controls = gst_color_balance_list_channels(balance);
const GList *item;
GstColorBalanceChannel *colorBalanceChannel;
for (item = controls; item; item = g_list_next (item)) {
colorBalanceChannel = (GstColorBalanceChannel *)item->data;
if (!g_ascii_strcasecmp (colorBalanceChannel->label, channel.toAscii())) {
gst_color_balance_set_value (balance, colorBalanceChannel, value);
return true;
}
}
return false;
}
QCameraImageProcessing::WhiteBalanceMode CameraBinImageProcessing::whiteBalanceMode() const
{
GstWhiteBalanceMode wbMode;
gst_photography_get_white_balance_mode(m_session->photography(), &wbMode);
return m_mappedWbValues[wbMode];
}
void CameraBinImageProcessing::setWhiteBalanceMode(QCameraImageProcessing::WhiteBalanceMode mode)
{
if (isWhiteBalanceModeSupported(mode))
gst_photography_set_white_balance_mode(m_session->photography(), m_mappedWbValues.key(mode));
}
bool CameraBinImageProcessing::isWhiteBalanceModeSupported(QCameraImageProcessing::WhiteBalanceMode mode) const
{
return m_mappedWbValues.values().contains(mode);
}
bool CameraBinImageProcessing::isProcessingParameterSupported(QCameraImageProcessingControl::ProcessingParameter parameter) const
{
return parameter == QCameraImageProcessingControl::Contrast
|| parameter == QCameraImageProcessingControl::Brightness
|| parameter == QCameraImageProcessingControl::Saturation;
}
QVariant CameraBinImageProcessing::processingParameter(
QCameraImageProcessingControl::ProcessingParameter parameter) const
{
if (m_values.contains(parameter))
return m_values.value(parameter);
else
return QVariant();
}
void CameraBinImageProcessing::setProcessingParameter(
QCameraImageProcessingControl::ProcessingParameter parameter,
QVariant value)
{
switch (parameter) {
case Contrast:
setColorBalanceValue("contrast", value.toInt());
break;
case Brightness:
setColorBalanceValue("brightness", value.toInt());
break;
case Saturation:
setColorBalanceValue("saturation", value.toInt());
break;
default:
break;
}
updateColorBalanceValues();
}