/usr/include/QtGStreamer/QGst/discoverer.h is in libqtgstreamer-dev 1.2.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2012 Openismus GmbH
@author Mathias Hasselmann <mathias@openismus.com>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QGST_DISCOVERER_H
#define QGST_DISCOVERER_H
#include <QGst/ClockTime>
#include <QGst/Fraction>
#include <QGst/MiniObject>
#include <QGst/Object>
#include <QGst/Structure>
#include <QGst/TagList>
#include <QtCore/QUrl>
#include "global.h"
namespace QGst {
class QTGSTREAMER_EXPORT DiscovererStreamInfo : public QGlib::Object
{
QGST_WRAPPER(DiscovererStreamInfo)
public:
DiscovererStreamInfoPtr previous() const;
DiscovererStreamInfoPtr next() const;
QString streamTypeNick() const;
CapsPtr caps() const;
TagList tags() const;
Structure misc() const;
};
class QTGSTREAMER_EXPORT DiscovererContainerInfo : public DiscovererStreamInfo
{
QGST_WRAPPER(DiscovererContainerInfo)
public:
QList<DiscovererStreamInfoPtr> streams() const;
};
class QTGSTREAMER_EXPORT DiscovererAudioInfo : public DiscovererStreamInfo
{
QGST_WRAPPER(DiscovererAudioInfo)
public:
uint channels() const;
uint sampleRate() const;
uint depth() const;
uint bitrate() const;
uint maxBitrate() const;
QString language() const;
};
class QTGSTREAMER_EXPORT DiscovererVideoInfo : public DiscovererStreamInfo
{
QGST_WRAPPER(DiscovererVideoInfo)
public:
uint width() const;
uint height() const;
uint depth() const;
Fraction framerate() const;
Fraction pixelAspectRatio() const;
uint bitrate() const;
uint maxBitrate() const;
bool isInterlaced() const;
bool isImage() const;
};
class QTGSTREAMER_EXPORT DiscovererSubtitleInfo : public DiscovererStreamInfo
{
QGST_WRAPPER(DiscovererSubtitleInfo)
public:
QString language() const;
};
class QTGSTREAMER_EXPORT DiscovererInfo : public QGlib::Object
{
QGST_WRAPPER(DiscovererInfo)
public:
QUrl uri() const;
DiscovererResult result() const;
ClockTime duration() const;
bool seekable() const;
Structure misc() const;
TagList tags() const;
DiscovererStreamInfoPtr streamInfo() const;
QList<DiscovererStreamInfoPtr> streams() const;
QList<DiscovererStreamInfoPtr> streams(QGlib::Type streamType) const;
QList<DiscovererStreamInfoPtr> audioStreams() const;
QList<DiscovererStreamInfoPtr> videoStreams() const;
QList<DiscovererStreamInfoPtr> subtitleStreams() const;
QList<DiscovererStreamInfoPtr> containerStreams() const;
};
class QTGSTREAMER_EXPORT Discoverer : public QGlib::Object
{
QGST_WRAPPER(Discoverer)
public:
/*! Creates a new discoverer with the provided timeout.
* \throws QGlib::Error when there was a problem creating the discoverer
*/
static DiscovererPtr create(ClockTime timeout);
/*! Allow asynchronous discovering of URIs to take place.
* \note A GLib event loop must be available for QGst::Discoverer to work
* properly in asynchronous mode. This feature might not be available on all
* platforms supported by Qt.
* \ingroup async
*/
void start();
/*! Stop the discovery of any pending URIs and clears the list of pending URIS (if any).
* \ingroup async
*/
void stop();
/*! Appends the given \param uri to the list of URIs to discoverer.
* The actual discovery of the \param uri will only take place if start() has been called.
* \ingroup async
*/
bool discoverUriAsync(const char *uri);
/*! \overload */
inline bool discoverUriAsync(const QUrl &uri);
/*! Synchronously discovers the given \param uri.
* \throws QGlib::Error if an error occurred
* \ingroup sync
*/
DiscovererInfoPtr discoverUri(const char *uri);
/*! \overload */
inline DiscovererInfoPtr discoverUri(const QUrl &uri);
};
inline bool Discoverer::discoverUriAsync(const QUrl &uri)
{
return discoverUriAsync(uri.toEncoded().constData());
}
inline DiscovererInfoPtr Discoverer::discoverUri(const QUrl &uri)
{
return discoverUri(uri.toEncoded().constData());
}
QTGSTREAMER_EXPORT QDebug operator<<(QDebug debug, DiscovererResult result);
QTGSTREAMER_EXPORT QDebug operator<<(QDebug debug, const DiscovererStreamInfoPtr &info);
QTGSTREAMER_EXPORT QDebug operator<<(QDebug debug, const DiscovererInfoPtr &info);
} // namespace QGst
QGST_REGISTER_TYPE(QGst::DiscovererStreamInfo)
QGST_REGISTER_TYPE(QGst::DiscovererContainerInfo)
QGST_REGISTER_TYPE(QGst::DiscovererAudioInfo)
QGST_REGISTER_TYPE(QGst::DiscovererVideoInfo)
QGST_REGISTER_TYPE(QGst::DiscovererSubtitleInfo)
QGST_REGISTER_TYPE(QGst::DiscovererInfo)
QGST_REGISTER_TYPE(QGst::Discoverer)
#endif // QGST_DISCOVERER_H
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