HintPacketsSentBox.java

/*  
 * Copyright 2008 CoreMedia AG, Hamburg
 *
 * Licensed under the Apache License, Version 2.0 (the License); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an AS IS BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */

package com.coremedia.iso.boxes.rtp;

import com.coremedia.iso.BoxParser;
import com.coremedia.iso.IsoBufferWrapper;
import com.coremedia.iso.IsoFile;
import com.coremedia.iso.IsoOutputStream;
import com.coremedia.iso.boxes.AbstractBox;
import com.coremedia.iso.boxes.Box;

import java.io.IOException;
import java.util.Arrays;

/**
 * Represents two specifc hint statistic boxes.
 * <code><pre>
 * aligned(8) class hintBytesSent extends box('trpy') {
 *   uint(64) bytessent;
 * } // total bytes sent, including 12-byte RTP headers
 * <p/>
 * aligned(8) class hintPacketsSent extends box('nump') {
 *   uint(64) packetssent;
 * } // total packets sent
 * </pre></code>
 *
 * @see com.coremedia.iso.boxes.rtp.HintStatisticBoxes
 * @see HintStatisticsBox
 */
public class HintPacketsSentBox extends AbstractBox {
    private long packetsSent;
    public static final String TYPE1 = "nump";
    public static final String TYPE2 = "npck";

    public HintPacketsSentBox(byte[] type) {
        super(type);
    }

    public long getPacketsSent() {
        return packetsSent;
    }

    protected long getContentSize() {
        if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("nump"))) {
            return 8;
        } else if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("npck"))) {
            return 4;
        } else {
            throw new UnsupportedOperationException();
        }

    }

    public void parse(IsoBufferWrapper in, long size, BoxParser boxParser, Box lastMovieFragmentBox) throws IOException {
        if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("nump"))) {
            packetsSent = in.readUInt64();
        } else if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("npck"))) {
            packetsSent = in.readUInt32();
        } else {
            throw new UnsupportedOperationException();
        }
    }

    protected void getContent(IsoOutputStream isos) throws IOException {
        if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("nump"))) {
            isos.writeUInt64(packetsSent);
        } else if (Arrays.equals(getType(), IsoFile.fourCCtoBytes("npck"))) {
            isos.writeUInt32((int) packetsSent);
        } else {
            throw new UnsupportedOperationException();
        }

    }

    public String toString() {
        return "HintPacketsSentBox[packetsSent=" + getPacketsSent() + "]";
    }
}