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Diffstat (limited to 'src/plugins/avfoundation/camera/avfimageencodercontrol.mm')
| -rw-r--r-- | src/plugins/avfoundation/camera/avfimageencodercontrol.mm | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/src/plugins/avfoundation/camera/avfimageencodercontrol.mm b/src/plugins/avfoundation/camera/avfimageencodercontrol.mm deleted file mode 100644 index 93de3e63c..000000000 --- a/src/plugins/avfoundation/camera/avfimageencodercontrol.mm +++ /dev/null @@ -1,240 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "avfcameraviewfindersettingscontrol.h" -#include "avfimageencodercontrol.h" -#include "avfimagecapturecontrol.h" -#include "avfcamerautility.h" -#include "avfcamerasession.h" -#include "avfcameraservice.h" -#include "avfcameradebug.h" -#include "avfcameracontrol.h" - -#include <QtMultimedia/qmediaencodersettings.h> - -#include <QtCore/qdebug.h> - -#include <AVFoundation/AVFoundation.h> - -QT_BEGIN_NAMESPACE - -AVFImageEncoderControl::AVFImageEncoderControl(AVFCameraService *service) - : m_service(service) -{ - Q_ASSERT(service); -} - -QStringList AVFImageEncoderControl::supportedImageCodecs() const -{ - return QStringList() << QLatin1String("jpeg"); -} - -QString AVFImageEncoderControl::imageCodecDescription(const QString &codecName) const -{ - if (codecName == QLatin1String("jpeg")) - return tr("JPEG image"); - - return QString(); -} - -QList<QSize> AVFImageEncoderControl::supportedResolutions(const QImageEncoderSettings &settings, - bool *continuous) const -{ - Q_UNUSED(settings); - - QList<QSize> resolutions; - - if (!videoCaptureDeviceIsValid()) - return resolutions; - - AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice(); - const QVector<AVCaptureDeviceFormat *> formats(qt_unique_device_formats(captureDevice, - m_service->session()->defaultCodec())); - - for (int i = 0; i < formats.size(); ++i) { - AVCaptureDeviceFormat *format = formats[i]; - - const QSize res(qt_device_format_resolution(format)); - if (!res.isNull() && res.isValid()) - resolutions << res; -#ifdef Q_OS_IOS - // From Apple's docs (iOS): - // By default, AVCaptureStillImageOutput emits images with the same dimensions as - // its source AVCaptureDevice instance’s activeFormat.formatDescription. However, - // if you set this property to YES, the receiver emits still images at the capture - // device’s highResolutionStillImageDimensions value. - const QSize hrRes(qt_device_format_high_resolution(format)); - if (!hrRes.isNull() && hrRes.isValid()) - resolutions << res; -#endif - } - - if (continuous) - *continuous = false; - - return resolutions; -} - -QImageEncoderSettings AVFImageEncoderControl::requestedSettings() const -{ - return m_settings; -} - -QImageEncoderSettings AVFImageEncoderControl::imageSettings() const -{ - QImageEncoderSettings settings; - - if (!videoCaptureDeviceIsValid()) - return settings; - - AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice(); - if (!captureDevice.activeFormat) { - qDebugCamera() << Q_FUNC_INFO << "no active format"; - return settings; - } - - QSize res(qt_device_format_resolution(captureDevice.activeFormat)); -#ifdef Q_OS_IOS - if (!m_service->imageCaptureControl() || !m_service->imageCaptureControl()->stillImageOutput()) { - qDebugCamera() << Q_FUNC_INFO << "no still image output"; - return settings; - } - - AVCaptureStillImageOutput *stillImageOutput = m_service->imageCaptureControl()->stillImageOutput(); - if (stillImageOutput.highResolutionStillImageOutputEnabled) - res = qt_device_format_high_resolution(captureDevice.activeFormat); -#endif - if (res.isNull() || !res.isValid()) { - qDebugCamera() << Q_FUNC_INFO << "failed to exctract the image resolution"; - return settings; - } - - settings.setResolution(res); - - settings.setCodec(QLatin1String("jpeg")); - - return settings; -} - -void AVFImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings) -{ - if (m_settings == settings) - return; - - m_settings = settings; - applySettings(); -} - -bool AVFImageEncoderControl::applySettings() -{ - if (!videoCaptureDeviceIsValid()) - return false; - - AVFCameraSession *session = m_service->session(); - if (!session || (session->state() != QCamera::ActiveState - && session->state() != QCamera::LoadedState) - || !m_service->cameraControl()->captureMode().testFlag(QCamera::CaptureStillImage)) { - return false; - } - - if (!m_service->imageCaptureControl() - || !m_service->imageCaptureControl()->stillImageOutput()) { - qDebugCamera() << Q_FUNC_INFO << "no still image output"; - return false; - } - - if (m_settings.codec().size() - && m_settings.codec() != QLatin1String("jpeg")) { - qDebugCamera() << Q_FUNC_INFO << "unsupported codec:" << m_settings.codec(); - return false; - } - - QSize res(m_settings.resolution()); - if (res.isNull()) { - qDebugCamera() << Q_FUNC_INFO << "invalid resolution:" << res; - return false; - } - - if (!res.isValid()) { - // Invalid == default value. - // Here we could choose the best format available, but - // activeFormat is already equal to 'preset high' by default, - // which is good enough, otherwise we can end in some format with low framerates. - return false; - } - - bool activeFormatChanged = false; - - AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice(); - AVCaptureDeviceFormat *match = qt_find_best_resolution_match(captureDevice, res, - m_service->session()->defaultCodec()); - - if (!match) { - qDebugCamera() << Q_FUNC_INFO << "unsupported resolution:" << res; - return false; - } - - activeFormatChanged = qt_set_active_format(captureDevice, match, true); - -#ifdef Q_OS_IOS - AVCaptureStillImageOutput *imageOutput = m_service->imageCaptureControl()->stillImageOutput(); - if (res == qt_device_format_high_resolution(captureDevice.activeFormat)) - imageOutput.highResolutionStillImageOutputEnabled = YES; - else - imageOutput.highResolutionStillImageOutputEnabled = NO; -#endif - - return activeFormatChanged; -} - -bool AVFImageEncoderControl::videoCaptureDeviceIsValid() const -{ - if (!m_service->session() || !m_service->session()->videoCaptureDevice()) - return false; - - AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice(); - if (!captureDevice.formats || !captureDevice.formats.count) - return false; - - return true; -} - -QT_END_NAMESPACE - -#include "moc_avfimageencodercontrol.cpp" |