1 files changed, 219 insertions, 0 deletions
diff --git a/src/plugins/avfoundation/mediaplayer/avfvideowidgetcontrol.mm b/src/plugins/avfoundation/mediaplayer/avfvideowidgetcontrol.mm
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+/****************************************************************************
+**
+** Copyright (C) 2012 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 "avfvideowidgetcontrol.h"
+
+#include "avfvideowidget.h"
+#include "avfvideoframerenderer.h"
+#include "avfdisplaylink.h"
+
+#ifdef QT_DEBUG_AVF
+#include <QtCore/QDebug>
+#endif
+
+#import <AVFoundation/AVFoundation.h>
+
+QT_USE_NAMESPACE
+
+AVFVideoWidgetControl::AVFVideoWidgetControl(QObject *parent)
+    : QVideoWidgetControl(parent)
+    , m_frameRenderer(0)
+    , m_aspectRatioMode(Qt::KeepAspectRatio)
+    , m_fullscreen(false)
+    , m_brightness(0)
+    , m_contrast(0)
+    , m_hue(0)
+    , m_saturation(0)
+    , m_playerLayer(0)
+{
+    QGLFormat format = QGLFormat::defaultFormat();
+    format.setSwapInterval(1); // Vertical sync (avoid tearing)
+    format.setDoubleBuffer(true);
+    m_videoWidget = new AVFVideoWidget(0, format);
+
+    m_displayLink = new AVFDisplayLink(this);
+    connect(m_displayLink, SIGNAL(tick(CVTimeStamp)), this, SLOT(updateVideoFrame(CVTimeStamp)));
+}
+
+AVFVideoWidgetControl::~AVFVideoWidgetControl()
+{
+#ifdef QT_DEBUG_AVF
+    qDebug() << Q_FUNC_INFO;
+#endif
+    m_displayLink->stop();
+    if (m_playerLayer)
+        [(AVPlayerLayer*)m_playerLayer release];
+
+    delete m_videoWidget;
+}
+
+void AVFVideoWidgetControl::setLayer(void *playerLayer)
+{
+#ifdef QT_DEBUG_AVF
+    qDebug() << Q_FUNC_INFO << playerLayer;
+#endif
+
+    if (m_playerLayer == playerLayer)
+        return;
+
+    [(AVPlayerLayer*)playerLayer retain];
+    [(AVPlayerLayer*)m_playerLayer release];
+
+    m_playerLayer = playerLayer;
+
+    //If there is no layer to render, stop scheduling updates
+    if (m_playerLayer == 0) {
+        m_displayLink->stop();
+        return;
+    }
+
+    setupVideoOutput();
+
+    //make sure we schedule updates
+    if (!m_displayLink->isActive()) {
+        m_displayLink->start();
+    }
+}
+
+QWidget *AVFVideoWidgetControl::videoWidget()
+{
+    return m_videoWidget;
+}
+
+bool AVFVideoWidgetControl::isFullScreen() const
+{
+    return m_fullscreen;
+}
+
+void AVFVideoWidgetControl::setFullScreen(bool fullScreen)
+{
+    m_fullscreen = fullScreen;
+}
+
+Qt::AspectRatioMode AVFVideoWidgetControl::aspectRatioMode() const
+{
+    return m_aspectRatioMode;
+}
+
+void AVFVideoWidgetControl::setAspectRatioMode(Qt::AspectRatioMode mode)
+{
+    m_aspectRatioMode = mode;
+    m_videoWidget->setAspectRatioMode(mode);
+}
+
+int AVFVideoWidgetControl::brightness() const
+{
+    return m_brightness;
+}
+
+void AVFVideoWidgetControl::setBrightness(int brightness)
+{
+    m_brightness = brightness;
+}
+
+int AVFVideoWidgetControl::contrast() const
+{
+    return m_contrast;
+}
+
+void AVFVideoWidgetControl::setContrast(int contrast)
+{
+    m_contrast = contrast;
+}
+
+int AVFVideoWidgetControl::hue() const
+{
+    return m_hue;
+}
+
+void AVFVideoWidgetControl::setHue(int hue)
+{
+    m_hue = hue;
+}
+
+int AVFVideoWidgetControl::saturation() const
+{
+    return m_saturation;
+}
+
+void AVFVideoWidgetControl::setSaturation(int saturation)
+{
+    m_saturation = saturation;
+}
+
+void AVFVideoWidgetControl::updateVideoFrame(const CVTimeStamp &ts)
+{
+    Q_UNUSED(ts)
+
+    AVPlayerLayer *playerLayer = (AVPlayerLayer*)m_playerLayer;
+
+    if (!playerLayer) {
+        qWarning("updateVideoFrame called without AVPlayerLayer (which shouldn't happen)");
+        return;
+    }
+
+    //Don't try to render a layer that is not ready
+    if (!playerLayer.readyForDisplay)
+        return;
+
+    GLuint textureId = m_frameRenderer->renderLayerToTexture(playerLayer);
+
+    //Make sure we have a valid texture
+    if (textureId == 0) {
+        qWarning("renderLayerToTexture failed");
+        return;
+    }
+
+    m_videoWidget->setTexture(textureId);
+}
+
+void AVFVideoWidgetControl::setupVideoOutput()
+{
+    NSRect layerBounds = [(AVPlayerLayer*)m_playerLayer bounds];
+    m_nativeSize = QSize(layerBounds.size.width, layerBounds.size.height);
+    m_videoWidget->setNativeSize(m_nativeSize);
+
+    if (m_frameRenderer)
+        delete m_frameRenderer;
+
+    m_frameRenderer = new AVFVideoFrameRenderer(m_videoWidget, m_nativeSize, this);
+}
+