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/*
* Copyright (c) 2007, 2008 Wayne Meissner
*
* This file is part of gstreamer-java.
*
* This code is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with this work. If not, see .
*/
package org.gstreamer;
import org.gstreamer.lowlevel.GstNative;
import org.gstreamer.lowlevel.ReferenceManager;
import org.gstreamer.lowlevel.annotations.HasSubtype;
/**
* Base type of all events.
*
* Events are passed between elements in parallel to the data stream. Some events
* are serialized with buffers, others are not. Some events only travel downstream,
* others only upstream. Some events can travel both upstream and downstream.
*
*
The events are used to signal special conditions in the datastream such as
* EOS (end of stream) or the start of a new stream-segment.
*
*
Events are also used to flush the pipeline of any pending data.
*
* @see Pad#pushEvent
* @see Pad#sendEvent
* @see Element#sendEvent
*/
@HasSubtype
public class Event extends MiniObject {
private static interface API extends com.sun.jna.Library {
Structure gst_event_get_structure(Event event);
}
private static final API gst = GstNative.load(API.class);
/**
* This constructor is for internal use only.
* @param init initialization data.
*/
public Event(Initializer init) {
super(init);
}
/**
* Gets the structure containing the data in this event.
*
* @return a structure.
*/
public Structure getStructure() {
return ReferenceManager.addKeepAliveReference(gst.gst_event_get_structure(this), this);
}
}