diff options
Diffstat (limited to 'src/plugins/gstreamer/camerabin/camerabinfocus.cpp')
| -rw-r--r-- | src/plugins/gstreamer/camerabin/camerabinfocus.cpp | 540 |
1 files changed, 0 insertions, 540 deletions
diff --git a/src/plugins/gstreamer/camerabin/camerabinfocus.cpp b/src/plugins/gstreamer/camerabin/camerabinfocus.cpp deleted file mode 100644 index 33ac7e3d7..000000000 --- a/src/plugins/gstreamer/camerabin/camerabinfocus.cpp +++ /dev/null @@ -1,540 +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 "camerabinfocus.h" -#include "camerabinsession.h" - -#include <gst/interfaces/photography.h> - -#include <QDebug> -#include <QtCore/qcoreevent.h> -#include <QtCore/qmetaobject.h> - -#include <private/qgstutils_p.h> - -#if !GST_CHECK_VERSION(1,0,0) -typedef GstFocusMode GstPhotographyFocusMode; -#endif - -//#define CAMERABIN_DEBUG 1 - -QT_BEGIN_NAMESPACE - -CameraBinFocus::CameraBinFocus(CameraBinSession *session) - :QCameraFocusControl(session), -#if GST_CHECK_VERSION(1,0,0) - QGstreamerBufferProbe(ProbeBuffers), -#endif - m_session(session), - m_cameraStatus(QCamera::UnloadedStatus), - m_focusMode(QCameraFocus::AutoFocus), - m_focusPointMode(QCameraFocus::FocusPointAuto), - m_focusStatus(QCamera::Unlocked), - m_focusZoneStatus(QCameraFocusZone::Selected), - m_focusPoint(0.5, 0.5), - m_focusRect(0, 0, 0.3, 0.3) -{ - m_focusRect.moveCenter(m_focusPoint); - - gst_photography_set_focus_mode(m_session->photography(), GST_PHOTOGRAPHY_FOCUS_MODE_AUTO); - - connect(m_session, SIGNAL(statusChanged(QCamera::Status)), - this, SLOT(_q_handleCameraStatusChange(QCamera::Status))); -} - -CameraBinFocus::~CameraBinFocus() -{ -} - -QCameraFocus::FocusModes CameraBinFocus::focusMode() const -{ - return m_focusMode; -} - -void CameraBinFocus::setFocusMode(QCameraFocus::FocusModes mode) -{ - GstPhotographyFocusMode photographyMode; - - switch (mode) { - case QCameraFocus::AutoFocus: - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO; - break; - case QCameraFocus::HyperfocalFocus: - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_HYPERFOCAL; - break; - case QCameraFocus::InfinityFocus: - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_INFINITY; - break; - case QCameraFocus::ContinuousFocus: - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_CONTINUOUS_NORMAL; - break; - case QCameraFocus::MacroFocus: - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_MACRO; - break; - default: - if (mode & QCameraFocus::AutoFocus) { - photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO; - break; - } else { - return; - } - } - - if (gst_photography_set_focus_mode(m_session->photography(), photographyMode)) - m_focusMode = mode; -} - -bool CameraBinFocus::isFocusModeSupported(QCameraFocus::FocusModes mode) const -{ - switch (mode) { - case QCameraFocus::AutoFocus: - case QCameraFocus::HyperfocalFocus: - case QCameraFocus::InfinityFocus: - case QCameraFocus::ContinuousFocus: - case QCameraFocus::MacroFocus: - return true; - default: - return mode & QCameraFocus::AutoFocus; - } -} - -QCameraFocus::FocusPointMode CameraBinFocus::focusPointMode() const -{ - return m_focusPointMode; -} - -void CameraBinFocus::setFocusPointMode(QCameraFocus::FocusPointMode mode) -{ - GstElement *source = m_session->cameraSource(); - - if (m_focusPointMode == mode || !source) - return; - -#if GST_CHECK_VERSION(1,0,0) - if (m_focusPointMode == QCameraFocus::FocusPointFaceDetection) { - g_object_set (G_OBJECT(source), "detect-faces", FALSE, NULL); - - if (GstPad *pad = gst_element_get_static_pad(source, "vfsrc")) { - removeProbeFromPad(pad); - gst_object_unref(GST_OBJECT(pad)); - } - - m_faceResetTimer.stop(); - m_faceFocusRects.clear(); - - QMutexLocker locker(&m_mutex); - m_faces.clear(); - } -#endif - - if (m_focusPointMode != QCameraFocus::FocusPointAuto) - resetFocusPoint(); - - switch (mode) { - case QCameraFocus::FocusPointAuto: - case QCameraFocus::FocusPointCustom: - break; -#if GST_CHECK_VERSION(1,0,0) - case QCameraFocus::FocusPointFaceDetection: - if (g_object_class_find_property(G_OBJECT_GET_CLASS(source), "detect-faces")) { - if (GstPad *pad = gst_element_get_static_pad(source, "vfsrc")) { - addProbeToPad(pad); - g_object_set (G_OBJECT(source), "detect-faces", TRUE, NULL); - break; - } - } - return; -#endif - default: - return; - } - - m_focusPointMode = mode; - emit focusPointModeChanged(m_focusPointMode); - emit focusZonesChanged(); -} - -bool CameraBinFocus::isFocusPointModeSupported(QCameraFocus::FocusPointMode mode) const -{ - switch (mode) { - case QCameraFocus::FocusPointAuto: - case QCameraFocus::FocusPointCustom: - return true; -#if GST_CHECK_VERSION(1,0,0) - case QCameraFocus::FocusPointFaceDetection: - if (GstElement *source = m_session->cameraSource()) - return g_object_class_find_property(G_OBJECT_GET_CLASS(source), "detect-faces"); - return false; -#endif - default: - return false; - } -} - -QPointF CameraBinFocus::customFocusPoint() const -{ - return m_focusPoint; -} - -void CameraBinFocus::setCustomFocusPoint(const QPointF &point) -{ - if (m_focusPoint != point) { - m_focusPoint = point; - - // Bound the focus point so the focus rect remains entirely within the unit square. - m_focusPoint.setX(qBound(m_focusRect.width() / 2, m_focusPoint.x(), 1 - m_focusRect.width() / 2)); - m_focusPoint.setY(qBound(m_focusRect.height() / 2, m_focusPoint.y(), 1 - m_focusRect.height() / 2)); - - if (m_focusPointMode == QCameraFocus::FocusPointCustom) { - const QRectF focusRect = m_focusRect; - m_focusRect.moveCenter(m_focusPoint); - - updateRegionOfInterest(m_focusRect); - - if (focusRect != m_focusRect) { - emit focusZonesChanged(); - } - } - - emit customFocusPointChanged(m_focusPoint); - } -} - -QCameraFocusZoneList CameraBinFocus::focusZones() const -{ - QCameraFocusZoneList zones; - - if (m_focusPointMode != QCameraFocus::FocusPointFaceDetection) { - zones.append(QCameraFocusZone(m_focusRect, m_focusZoneStatus)); -#if GST_CHECK_VERSION(1,0,0) - } else for (const QRect &face : qAsConst(m_faceFocusRects)) { - const QRectF normalizedRect( - face.x() / qreal(m_viewfinderResolution.width()), - face.y() / qreal(m_viewfinderResolution.height()), - face.width() / qreal(m_viewfinderResolution.width()), - face.height() / qreal(m_viewfinderResolution.height())); - zones.append(QCameraFocusZone(normalizedRect, m_focusZoneStatus)); -#endif - } - return zones; -} - -void CameraBinFocus::handleFocusMessage(GstMessage *gm) -{ - //it's a sync message, so it's called from non main thread - const GstStructure *structure = gst_message_get_structure(gm); - if (gst_structure_has_name(structure, GST_PHOTOGRAPHY_AUTOFOCUS_DONE)) { - gint status = GST_PHOTOGRAPHY_FOCUS_STATUS_NONE; - gst_structure_get_int (structure, "status", &status); - QCamera::LockStatus focusStatus = m_focusStatus; - QCamera::LockChangeReason reason = QCamera::UserRequest; - - switch (status) { - case GST_PHOTOGRAPHY_FOCUS_STATUS_FAIL: - focusStatus = QCamera::Unlocked; - reason = QCamera::LockFailed; - break; - case GST_PHOTOGRAPHY_FOCUS_STATUS_SUCCESS: - focusStatus = QCamera::Locked; - break; - case GST_PHOTOGRAPHY_FOCUS_STATUS_NONE: - break; - case GST_PHOTOGRAPHY_FOCUS_STATUS_RUNNING: - focusStatus = QCamera::Searching; - break; - default: - break; - } - - static int signalIndex = metaObject()->indexOfSlot( - "_q_setFocusStatus(QCamera::LockStatus,QCamera::LockChangeReason)"); - metaObject()->method(signalIndex).invoke(this, - Qt::QueuedConnection, - Q_ARG(QCamera::LockStatus,focusStatus), - Q_ARG(QCamera::LockChangeReason,reason)); - } -} - -void CameraBinFocus::_q_setFocusStatus(QCamera::LockStatus status, QCamera::LockChangeReason reason) -{ -#ifdef CAMERABIN_DEBUG - qDebug() << Q_FUNC_INFO << "Current:" - << m_focusStatus - << "New:" - << status << reason; -#endif - - if (m_focusStatus != status) { - m_focusStatus = status; - - QCameraFocusZone::FocusZoneStatus zonesStatus = - m_focusStatus == QCamera::Locked ? - QCameraFocusZone::Focused : QCameraFocusZone::Selected; - - if (m_focusZoneStatus != zonesStatus) { - m_focusZoneStatus = zonesStatus; - emit focusZonesChanged(); - } - -#if GST_CHECK_VERSION(1,0,0) - if (m_focusPointMode == QCameraFocus::FocusPointFaceDetection - && m_focusStatus == QCamera::Unlocked) { - _q_updateFaces(); - } -#endif - - emit _q_focusStatusChanged(m_focusStatus, reason); - } -} - -void CameraBinFocus::_q_handleCameraStatusChange(QCamera::Status status) -{ - m_cameraStatus = status; - if (status == QCamera::ActiveStatus) { - if (GstPad *pad = gst_element_get_static_pad(m_session->cameraSource(), "vfsrc")) { - if (GstCaps *caps = qt_gst_pad_get_current_caps(pad)) { - if (GstStructure *structure = gst_caps_get_structure(caps, 0)) { - int width = 0; - int height = 0; - gst_structure_get_int(structure, "width", &width); - gst_structure_get_int(structure, "height", &height); - setViewfinderResolution(QSize(width, height)); - } - gst_caps_unref(caps); - } - gst_object_unref(GST_OBJECT(pad)); - } - if (m_focusPointMode == QCameraFocus::FocusPointCustom) { - updateRegionOfInterest(m_focusRect); - } - } else { - _q_setFocusStatus(QCamera::Unlocked, QCamera::LockLost); - - resetFocusPoint(); - } -} - -void CameraBinFocus::_q_startFocusing() -{ - _q_setFocusStatus(QCamera::Searching, QCamera::UserRequest); - gst_photography_set_autofocus(m_session->photography(), TRUE); -} - -void CameraBinFocus::_q_stopFocusing() -{ - gst_photography_set_autofocus(m_session->photography(), FALSE); - _q_setFocusStatus(QCamera::Unlocked, QCamera::UserRequest); -} - -void CameraBinFocus::setViewfinderResolution(const QSize &resolution) -{ - if (resolution != m_viewfinderResolution) { - m_viewfinderResolution = resolution; - if (!resolution.isEmpty()) { - const QPointF center = m_focusRect.center(); - m_focusRect.setWidth(m_focusRect.height() * resolution.height() / resolution.width()); - m_focusRect.moveCenter(center); - } - } -} - -void CameraBinFocus::resetFocusPoint() -{ - const QRectF focusRect = m_focusRect; - m_focusPoint = QPointF(0.5, 0.5); - m_focusRect.moveCenter(m_focusPoint); - - updateRegionOfInterest(QList<QRect>()); - - if (focusRect != m_focusRect) { - emit customFocusPointChanged(m_focusPoint); - emit focusZonesChanged(); - } -} - -static void appendRegion(GValue *regions, int priority, const QRect &rectangle) -{ - GstStructure *region = gst_structure_new( - "region", - "region-x" , G_TYPE_UINT , rectangle.x(), - "region-y" , G_TYPE_UINT, rectangle.y(), - "region-w" , G_TYPE_UINT , rectangle.width(), - "region-h" , G_TYPE_UINT, rectangle.height(), - "region-priority" , G_TYPE_UINT, priority, - NULL); - - GValue regionValue = G_VALUE_INIT; - g_value_init(®ionValue, GST_TYPE_STRUCTURE); - gst_value_set_structure(®ionValue, region); - gst_structure_free(region); - - gst_value_list_append_value(regions, ®ionValue); - g_value_unset(®ionValue); -} - -void CameraBinFocus::updateRegionOfInterest(const QRectF &rectangle) -{ - updateRegionOfInterest(QList<QRect>() << QRect( - rectangle.x() * m_viewfinderResolution.width(), - rectangle.y() * m_viewfinderResolution.height(), - rectangle.width() * m_viewfinderResolution.width(), - rectangle.height() * m_viewfinderResolution.height())); -} - -void CameraBinFocus::updateRegionOfInterest(const QList<QRect> &rectangles) -{ - if (m_cameraStatus != QCamera::ActiveStatus) - return; - - GstElement * const cameraSource = m_session->cameraSource(); - if (!cameraSource) - return; - - GValue regions = G_VALUE_INIT; - g_value_init(®ions, GST_TYPE_LIST); - - if (rectangles.isEmpty()) { - appendRegion(®ions, 0, QRect(0, 0, 0, 0)); - } else { - // Add padding around small face rectangles so the auto focus has a reasonable amount - // of image to work with. - const int minimumDimension = qMin( - m_viewfinderResolution.width(), m_viewfinderResolution.height()) * 0.3; - const QRect viewfinderRectangle(QPoint(0, 0), m_viewfinderResolution); - - for (const QRect &rectangle : rectangles) { - QRect paddedRectangle( - 0, - 0, - qMax(rectangle.width(), minimumDimension), - qMax(rectangle.height(), minimumDimension)); - paddedRectangle.moveCenter(rectangle.center()); - - appendRegion(®ions, 1, viewfinderRectangle.intersected(paddedRectangle)); - } - } - - GstStructure *regionsOfInterest = gst_structure_new( - "regions-of-interest", - "frame-width" , G_TYPE_UINT , m_viewfinderResolution.width(), - "frame-height" , G_TYPE_UINT, m_viewfinderResolution.height(), - NULL); - gst_structure_set_value(regionsOfInterest, "regions", ®ions); - g_value_unset(®ions); - - GstEvent *event = gst_event_new_custom(GST_EVENT_CUSTOM_UPSTREAM, regionsOfInterest); - gst_element_send_event(cameraSource, event); -} - -#if GST_CHECK_VERSION(1,0,0) - -void CameraBinFocus::_q_updateFaces() -{ - if (m_focusPointMode != QCameraFocus::FocusPointFaceDetection - || m_focusStatus != QCamera::Unlocked) { - return; - } - - QList<QRect> faces; - - { - QMutexLocker locker(&m_mutex); - faces = m_faces; - } - - if (!faces.isEmpty()) { - m_faceResetTimer.stop(); - m_faceFocusRects = faces; - updateRegionOfInterest(m_faceFocusRects); - emit focusZonesChanged(); - } else { - m_faceResetTimer.start(500, this); - } -} - -void CameraBinFocus::timerEvent(QTimerEvent *event) -{ - if (event->timerId() == m_faceResetTimer.timerId()) { - m_faceResetTimer.stop(); - - if (m_focusStatus == QCamera::Unlocked) { - m_faceFocusRects.clear(); - updateRegionOfInterest(m_faceFocusRects); - emit focusZonesChanged(); - } - } else { - QCameraFocusControl::timerEvent(event); - } -} - -bool CameraBinFocus::probeBuffer(GstBuffer *buffer) -{ - QList<QRect> faces; - -#if GST_CHECK_VERSION(1,1,3) - gpointer state = NULL; - const GstMetaInfo *info = GST_VIDEO_REGION_OF_INTEREST_META_INFO; - - while (GstMeta *meta = gst_buffer_iterate_meta(buffer, &state)) { - if (meta->info->api != info->api) - continue; - - GstVideoRegionOfInterestMeta *region = reinterpret_cast<GstVideoRegionOfInterestMeta *>(meta); - - faces.append(QRect(region->x, region->y, region->w, region->h)); - } -#else - Q_UNUSED(buffer); -#endif - - QMutexLocker locker(&m_mutex); - - if (m_faces != faces) { - m_faces = faces; - - static const int signalIndex = metaObject()->indexOfSlot("_q_updateFaces()"); - metaObject()->method(signalIndex).invoke(this, Qt::QueuedConnection); - } - - return true; -} - -#endif - -QT_END_NAMESPACE |