diff options
Diffstat (limited to 'src/plugins/gstreamer/mediaplayer/qgstreamerplayerserviceplugin.cpp')
| -rw-r--r-- | src/plugins/gstreamer/mediaplayer/qgstreamerplayerserviceplugin.cpp | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/plugins/gstreamer/mediaplayer/qgstreamerplayerserviceplugin.cpp b/src/plugins/gstreamer/mediaplayer/qgstreamerplayerserviceplugin.cpp new file mode 100644 index 000000000..59a039f8d --- /dev/null +++ b/src/plugins/gstreamer/mediaplayer/qgstreamerplayerserviceplugin.cpp @@ -0,0 +1,191 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/qstring.h> +#include <QtCore/qdebug.h> +#include <QtCore/QDir> +#include <QtCore/QDebug> + +#include "qgstreamerplayerserviceplugin.h" + +//#define QT_SUPPORTEDMIMETYPES_DEBUG + +#include "qgstreamerplayerservice.h" +#include <private/qgstutils_p.h> + +#include <linux/types.h> +#include <sys/time.h> +#include <sys/ioctl.h> +#include <sys/poll.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include <sys/mman.h> +#include <linux/videodev2.h> +#include <gst/gst.h> + + +QMediaService* QGstreamerPlayerServicePlugin::create(const QString &key) +{ + QGstUtils::initializeGst(); + + if (key == QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER)) + return new QGstreamerPlayerService; + + qWarning() << "Gstreamer service plugin: unsupported key:" << key; + return 0; +} + +void QGstreamerPlayerServicePlugin::release(QMediaService *service) +{ + delete service; +} + +QMediaServiceProviderHint::Features QGstreamerPlayerServicePlugin::supportedFeatures( + const QByteArray &service) const +{ + if (service == Q_MEDIASERVICE_MEDIAPLAYER) + return QMediaServiceProviderHint::StreamPlayback | QMediaServiceProviderHint::VideoSurface; + else + return QMediaServiceProviderHint::Features(); +} + +QtMultimedia::SupportEstimate QGstreamerPlayerServicePlugin::hasSupport(const QString &mimeType, + const QStringList &codecs) const +{ + if (m_supportedMimeTypeSet.isEmpty()) + updateSupportedMimeTypes(); + + return QGstUtils::hasSupport(mimeType, codecs, m_supportedMimeTypeSet); +} + +void QGstreamerPlayerServicePlugin::updateSupportedMimeTypes() const +{ + //enumerate supported mime types + gst_init(NULL, NULL); + + GList *plugins, *orig_plugins; + orig_plugins = plugins = gst_default_registry_get_plugin_list (); + + while (plugins) { + GList *features, *orig_features; + + GstPlugin *plugin = (GstPlugin *) (plugins->data); + plugins = g_list_next (plugins); + + if (plugin->flags & (1<<1)) //GST_PLUGIN_FLAG_BLACKLISTED + continue; + + orig_features = features = gst_registry_get_feature_list_by_plugin(gst_registry_get_default (), + plugin->desc.name); + while (features) { + if (!G_UNLIKELY(features->data == NULL)) { + GstPluginFeature *feature = GST_PLUGIN_FEATURE(features->data); + if (GST_IS_ELEMENT_FACTORY (feature)) { + GstElementFactory *factory = GST_ELEMENT_FACTORY(gst_plugin_feature_load(feature)); + if (factory + && factory->numpadtemplates > 0 + && (qstrcmp(factory->details.klass, "Codec/Decoder/Audio") == 0 + || qstrcmp(factory->details.klass, "Codec/Decoder/Video") == 0 + || qstrcmp(factory->details.klass, "Codec/Demux") == 0 )) { + const GList *pads = factory->staticpadtemplates; + while (pads) { + GstStaticPadTemplate *padtemplate = (GstStaticPadTemplate*)(pads->data); + pads = g_list_next (pads); + if (padtemplate->direction != GST_PAD_SINK) + continue; + if (padtemplate->static_caps.string) { + GstCaps *caps = gst_static_caps_get(&padtemplate->static_caps); + if (!gst_caps_is_any (caps) && ! gst_caps_is_empty (caps)) { + for (guint i = 0; i < gst_caps_get_size(caps); i++) { + GstStructure *structure = gst_caps_get_structure(caps, i); + QString nameLowcase = QString(gst_structure_get_name (structure)).toLower(); + + m_supportedMimeTypeSet.insert(nameLowcase); + if (nameLowcase.contains("mpeg")) { + //Because mpeg version number is only included in the detail + //description, it is necessary to manually extract this information + //in order to match the mime type of mpeg4. + const GValue *value = gst_structure_get_value(structure, "mpegversion"); + if (value) { + gchar *str = gst_value_serialize (value); + QString versions(str); + QStringList elements = versions.split(QRegExp("\\D+"), QString::SkipEmptyParts); + foreach (const QString &e, elements) + m_supportedMimeTypeSet.insert(nameLowcase + e); + g_free (str); + } + } + } + } + } + } + gst_object_unref (factory); + } + } else if (GST_IS_TYPE_FIND_FACTORY(feature)) { + QString name(gst_plugin_feature_get_name(feature)); + if (name.contains('/')) //filter out any string without '/' which is obviously not a mime type + m_supportedMimeTypeSet.insert(name.toLower()); + } + } + features = g_list_next (features); + } + gst_plugin_feature_list_free (orig_features); + } + gst_plugin_list_free (orig_plugins); + +#if defined QT_SUPPORTEDMIMETYPES_DEBUG + QStringList list = m_supportedMimeTypeSet.toList(); + list.sort(); + if (qgetenv("QT_DEBUG_PLUGINS").toInt() > 0) { + foreach (const QString &type, list) + qDebug() << type; + } +#endif +} + +QStringList QGstreamerPlayerServicePlugin::supportedMimeTypes() const +{ + return QStringList(); +} + |