org.freedesktop.gstreamer.GstIterator Maven / Gradle / Ivy
/*
* Copyright (c) 2021 Neil C Smith
*
* 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.freedesktop.gstreamer;
import java.util.ArrayList;
import java.util.List;
import org.freedesktop.gstreamer.glib.NativeObject;
import org.freedesktop.gstreamer.lowlevel.GstIteratorPtr;
import org.freedesktop.gstreamer.lowlevel.GstTypes;
import org.freedesktop.gstreamer.lowlevel.GType;
import org.freedesktop.gstreamer.lowlevel.GValueAPI;
import static org.freedesktop.gstreamer.lowlevel.GstIteratorAPI.GSTITERATOR_API;
/**
* Utility class for working with gstiterator.
*/
class GstIterator {
static List asList(GstIteratorPtr iter, Class type) {
final GType gtype = GstTypes.typeFor(type);
final GValueAPI.GValue gValue = new GValueAPI.GValue(gtype);
List list = new ArrayList<>();
while (GSTITERATOR_API.gst_iterator_next(iter, gValue) == 1) {
list.add((T) gValue.getValue());
}
gValue.reset();
GSTITERATOR_API.gst_iterator_free(iter);
return list;
}
}