ConvertQuery.java

/* 
 * Copyright (C) 2008 Wayne Meissner
 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
 *                    2000 Wim Taymans <wim.taymans@chello.be>
 *                    2005 Wim Taymans <wim@fluendo.com>
 *
 * 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 <http://www.gnu.org/licenses/>.
 */

package org.freedesktop.gstreamer.query;

import org.freedesktop.gstreamer.Format;
import org.freedesktop.gstreamer.Query;
import org.freedesktop.gstreamer.lowlevel.GstQueryAPI;

/**
 * Convert values between formats
 */
public class ConvertQuery extends Query {

    public ConvertQuery(Initializer init) {
        super(init);
    }
    public ConvertQuery(Format srcFormat, long value, Format destFormat) {
        this(initializer(GstQueryAPI.GSTQUERY_API.ptr_gst_query_new_convert(srcFormat, value, destFormat)));
    }
    public void setConvert(Format srcFormat, long srcValue, Format dstFormat, long dstValue) {
        GstQueryAPI.GSTQUERY_API.gst_query_set_convert(this, srcFormat, srcValue, dstFormat, dstValue);
    }
    public Format getSourceFormat() {
        Format[] fmt = new Format[1];
        GstQueryAPI.GSTQUERY_API.gst_query_parse_convert(this, fmt, null, null, null);
        return fmt[0];
    }
    public Format getDestinationFormat() {
        Format[] fmt = new Format[1];
        GstQueryAPI.GSTQUERY_API.gst_query_parse_convert(this, null, null, fmt, null);
        return fmt[0];
    }
    public long getSourceValue() {
        long[] value = new long[1];
        GstQueryAPI.GSTQUERY_API.gst_query_parse_convert(this, null, value, null, null);
        return value[0];
    }
    public long getDestinationValue() {
        long[] value = new long[1];
        GstQueryAPI.GSTQUERY_API.gst_query_parse_convert(this, null, null, null, value);
        return value[0];
    }
}