qgstreamerpipeline.cpp 7.19 KB
Newer Older
Val Doroshchuk's avatar
Val Doroshchuk committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
/****************************************************************************
**
** Copyright (C) 2018 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 "qgstreamerpipeline.h"
#include "qgstreamerpipeline_p.h"
#include <private/qgstreamervideorenderer_p.h>
#include <QMediaService>

QT_BEGIN_NAMESPACE

Val Doroshchuk's avatar
refact  
Val Doroshchuk committed
47 48 49 50 51
QGstreamerVideoRendererInterface *QGstreamerPipelinePrivate::renderer() const
{
    return session ? session->renderer() : nullptr;
}

Val Doroshchuk's avatar
Val Doroshchuk committed
52 53 54 55 56 57 58 59
QGstreamerPipeline::QGstreamerPipeline(QObject *parent)
    : QGstreamerPipeline(new QGstreamerPipelinePrivate(this), nullptr, parent)
{
}

QGstreamerPipeline::QGstreamerPipeline(QMediaPlayer *player, QObject *parent)
    : QGstreamerPipeline(new QGstreamerPipelinePrivate(this), player, parent)
{
Val Doroshchuk's avatar
Val Doroshchuk committed
60 61
}

Val Doroshchuk's avatar
Val Doroshchuk committed
62
QGstreamerPipeline::QGstreamerPipeline(QGstreamerPipelinePrivate *d, QMediaPlayer *player, QObject *parent)
Val Doroshchuk's avatar
Val Doroshchuk committed
63 64 65
    : QObject(parent)
    , d_ptr(d)
{
Val Doroshchuk's avatar
Val Doroshchuk committed
66
    setMediaPlayer(player);
Val Doroshchuk's avatar
Val Doroshchuk committed
67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
}

QGstreamerPipeline::~QGstreamerPipeline()
{
    delete d_ptr;
}

QObject *QGstreamerPipeline::source() const
{
    return d_func()->source.data();
}

void QGstreamerPipeline::setSource(QObject *src)
{
    Q_D(QGstreamerPipeline);

    if (d->source == src)
        return;

    if (d->source)
Val Doroshchuk's avatar
Val Doroshchuk committed
87
        disconnect(d->source.data(), 0, this, SLOT(updateMediaObject()));
Val Doroshchuk's avatar
Val Doroshchuk committed
88 89 90

    d->source = src;
    if (d->source) {
Val Doroshchuk's avatar
Val Doroshchuk committed
91 92
        const auto *metaObj = d->source->metaObject();
        int propId = metaObj->indexOfProperty("mediaObject");
Val Doroshchuk's avatar
Val Doroshchuk committed
93
        if (propId != -1) {
Val Doroshchuk's avatar
Val Doroshchuk committed
94
            const auto prop = metaObj->property(propId);
Val Doroshchuk's avatar
Val Doroshchuk committed
95 96
            if (prop.hasNotifySignal()) {
                QMetaMethod method = prop.notifySignal();
Val Doroshchuk's avatar
Val Doroshchuk committed
97
                QMetaObject::connect(d->source.data(), method.methodIndex(),
Val Doroshchuk's avatar
Val Doroshchuk committed
98
                    this, metaObject()->indexOfSlot("updateMediaPlayer()"),
Val Doroshchuk's avatar
Val Doroshchuk committed
99 100 101 102 103
                    Qt::DirectConnection, 0);
            }
        }
    }

Val Doroshchuk's avatar
Val Doroshchuk committed
104
    updateMediaPlayer();
Val Doroshchuk's avatar
Val Doroshchuk committed
105 106 107
    emit sourceChanged();
}

Val Doroshchuk's avatar
Val Doroshchuk committed
108 109 110 111 112 113 114
void QGstreamerPipeline::updateMediaPlayer()
{
    QMediaPlayer *obj = qobject_cast<QMediaPlayer*>(
        d_func()->source->property("mediaObject").value<QObject*>());
    setMediaPlayer(obj);
}

Val Doroshchuk's avatar
Val Doroshchuk committed
115
QMediaPlayer *QGstreamerPipeline::mediaPlayer() const
Val Doroshchuk's avatar
Val Doroshchuk committed
116
{
Val Doroshchuk's avatar
Val Doroshchuk committed
117
    return d_func()->mediaPlayer.data();
Val Doroshchuk's avatar
Val Doroshchuk committed
118 119
}

Val Doroshchuk's avatar
Val Doroshchuk committed
120
void QGstreamerPipeline::setMediaPlayer(QMediaPlayer *src)
Val Doroshchuk's avatar
Val Doroshchuk committed
121 122 123 124 125 126 127 128 129
{
    Q_D(QGstreamerPipeline);

    auto service = src ? src->service() : nullptr;
    if (!service)
        return;

    auto control = qobject_cast<QGstreamerPlayerControl *>(service->requestControl(QMediaPlayerControl_iid));
    d->session = control ? control->session() : nullptr;
Val Doroshchuk's avatar
Val Doroshchuk committed
130 131
    if (!d->session)
        return;
Val Doroshchuk's avatar
Val Doroshchuk committed
132

Val Doroshchuk's avatar
Val Doroshchuk committed
133 134
    connect(d->session, &QGstreamerPlayerSession::pipelineChanged,
        this, &QGstreamerPipeline::pipelineChanged);
Val Doroshchuk's avatar
Val Doroshchuk committed
135 136 137

    d->mediaPlayer = src;
    emit mediaPlayerChanged();
Val Doroshchuk's avatar
Val Doroshchuk committed
138 139

    setPipeline(d->pendingPipelineDesc);
Val Doroshchuk's avatar
Val Doroshchuk committed
140 141
}

Val Doroshchuk's avatar
Val Doroshchuk committed
142
QString QGstreamerPipeline::pipelineDesc() const
Val Doroshchuk's avatar
Val Doroshchuk committed
143
{
Val Doroshchuk's avatar
Val Doroshchuk committed
144
    return d_func()->pipelineDesc;
Val Doroshchuk's avatar
Val Doroshchuk committed
145 146 147 148 149 150
}

void QGstreamerPipeline::setPipeline(const QString &desc)
{
    Q_D(QGstreamerPipeline);

Val Doroshchuk's avatar
Val Doroshchuk committed
151 152 153 154 155 156
    d->pendingPipelineDesc = desc;
    if (!d->mediaPlayer || d->pipelineDesc == desc)
        return;

    QString pl = QLatin1String("gst-pipeline:") + desc;
    if (d->source)
Val Doroshchuk's avatar
tests  
Val Doroshchuk committed
157
        d->source->setProperty("source", QVariant::fromValue<QUrl>(pl));
Val Doroshchuk's avatar
Val Doroshchuk committed
158
    else
Val Doroshchuk's avatar
Val Doroshchuk committed
159
        d->mediaPlayer->setMedia(QMediaContent(pl));
Val Doroshchuk's avatar
minor  
Val Doroshchuk committed
160

Val Doroshchuk's avatar
Val Doroshchuk committed
161 162
    d->pipelineDesc = d->pendingPipelineDesc;
    d->pendingPipelineDesc.clear();
Val Doroshchuk's avatar
Val Doroshchuk committed
163 164
}

Val Doroshchuk's avatar
Val Doroshchuk committed
165 166 167 168 169
GstElement *QGstreamerPipeline::pipeline() const
{
    return d_ptr->session ? d_ptr->session->pipeline() : nullptr;
}

Val Doroshchuk's avatar
Val Doroshchuk committed
170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233
template <class T>
static void setGstProperty(GstElement *element, const QString &name, T v)
{
    g_object_set(G_OBJECT(element), name.toLatin1().constData(), v, NULL);
}

bool QGstreamerPipeline::set(const QString &elementName, const QVariantMap& map)
{
    Q_D(QGstreamerPipeline);

    GstElement *element = nullptr;
    if (elementName == QLatin1String("videoSink"))
        element = (d->session && d->session->renderer()) ? d->session->renderer()->videoSink() : nullptr;
    else if (d->session->pipeline())
        element = gst_bin_get_by_name(GST_BIN(d->session->pipeline()), elementName.toLatin1().constData());

     if (!element) {
        qWarning() << "Could not find element by name:" << elementName;
        if (d->session->pipeline()) {
            qWarning() << "Available elements:";
            qWarning() << " " << "videoSink";
            GstIterator *children = gst_bin_iterate_recurse(GST_BIN(d->session->pipeline()));
            gst_iterator_foreach(children, [](const GValue *item, gpointer) {
                GstElement *element = GST_ELEMENT(g_value_get_object(item));
                qWarning() << " " << GST_ELEMENT_NAME(element);
            }, nullptr);
            gst_iterator_free(children);
        } else {
            qWarning() << "No pipeline available";
        }

        return false;
    }

    for (auto it = map.begin(); it != map.end(); ++it) {
        QString name = it.key();
        QVariant value = it.value();

        switch (value.type()) {
        case QMetaType::Int:
            setGstProperty(element, name, value.toInt());
            break;
        case QMetaType::Bool:
            setGstProperty(element, name, value.toBool());
            break;
        case QMetaType::Double:
            setGstProperty(element, name, value.toDouble());
            break;
        case QMetaType::QString:
            setGstProperty(element, name, value.toString().toUtf8().constData());
            break;
        default:
            break;
        }
    }

    return true;
}

#include "moc_qgstreamerpipeline.cpp"

QT_END_NAMESPACE