/usr/include/gstreamermm-1.0/gstreamermm/systemclock.h is in libgstreamermm-1.0-dev 1.10.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#ifndef _GSTREAMERMM_SYSTEMCLOCK_H
#define _GSTREAMERMM_SYSTEMCLOCK_H
#include <glibmm/ustring.h>
#include <sigc++/sigc++.h>
/* gstreamermm - a C++ wrapper for gstreamer
*
* Copyright 2008 The gstreamermm Development Team
*
* 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 library 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 library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gstreamermm/clock.h>
#ifndef DOXYGEN_SHOULD_SKIP_THIS
using GstSystemClock = struct _GstSystemClock;
using GstSystemClockClass = struct _GstSystemClockClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Gst
{ class SystemClock_Class; } // namespace Gst
#endif //DOXYGEN_SHOULD_SKIP_THIS
namespace Gst
{
/** A default clock that uses the current system time.
* The GStreamer core provides a Gst::SystemClock based on the system time.
* Asynchronous callbacks are scheduled from an internal thread.
*
* Gst::Clock implementors are encouraged to subclass this systemclock as it
* implements the async notification.
*
* Subclasses can however override all of the important methods for sync and
* async notifications to implement their own callback methods or blocking wait
* operations.
*
* Last reviewed on 2006-03-08 (0.10.4)
*/
class SystemClock : public Clock
{
#ifndef DOXYGEN_SHOULD_SKIP_THIS
public:
using CppObjectType = SystemClock;
using CppClassType = SystemClock_Class;
using BaseObjectType = GstSystemClock;
using BaseClassType = GstSystemClockClass;
// noncopyable
SystemClock(const SystemClock&) = delete;
SystemClock& operator=(const SystemClock&) = delete;
private: friend class SystemClock_Class;
static CppClassType systemclock_class_;
protected:
explicit SystemClock(const Glib::ConstructParams& construct_params);
explicit SystemClock(GstSystemClock* castitem);
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
public:
SystemClock(SystemClock&& src) noexcept;
SystemClock& operator=(SystemClock&& src) noexcept;
~SystemClock() noexcept override;
/** Get the GType for this class, for use with the underlying GObject type system.
*/
static GType get_type() G_GNUC_CONST;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
static GType get_base_type() G_GNUC_CONST;
#endif
///Provides access to the underlying C GObject.
GstSystemClock* gobj() { return reinterpret_cast<GstSystemClock*>(gobject_); }
///Provides access to the underlying C GObject.
const GstSystemClock* gobj() const { return reinterpret_cast<GstSystemClock*>(gobject_); }
///Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
GstSystemClock* gobj_copy();
private:
protected:
SystemClock();
public:
/** Get a handle to the default system clock. The refcount of the
* clock will be increased so you need to unref the clock after
* usage.
*
* @return The default clock.
*
* MT safe.
*/
static Glib::RefPtr<Gst::Clock> obtain();
public:
public:
//C++ methods used to invoke GTK+ virtual functions:
protected:
//GTK+ Virtual Functions (override these to change behaviour):
//Default Signal Handlers::
};
} //namespace Gst
namespace Glib
{
/** A Glib::wrap() method for this object.
*
* @param object The C instance.
* @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
* @result A C++ instance that wraps this C instance.
*
* @relates Gst::SystemClock
*/
Glib::RefPtr<Gst::SystemClock> wrap(GstSystemClock* object, bool take_copy = false);
}
#endif /* _GSTREAMERMM_SYSTEMCLOCK_H */
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