com.coremedia.iso.boxes.BitRateBox Maven / Gradle / Ivy

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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)

There is a newer version: 1.1.22

/*  
 * 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;

import com.coremedia.iso.BoxParser;
import com.coremedia.iso.IsoBufferWrapper;
import com.coremedia.iso.IsoFile;
import com.coremedia.iso.IsoOutputStream;

import java.io.IOException;

/**
 * class BitRateBox extends Box('btrt') {

 * unsigned int(32) bufferSizeDB;

 * // gives the size of the decoding buffer for

 * // the elementary stream in bytes.

 * unsigned int(32) maxBitrate;

 * // gives the maximum rate in bits/second 

 * // over any window of one second.

 * unsigned int(32) avgBitrate;

 * // avgBitrate gives the average rate in 

 * // bits/second over the entire presentation.

 * }
 */

public final class BitRateBox extends AbstractBox {
    public static final String TYPE = "btrt";

    private long bufferSizeDb;
    private long maxBitrate;
    private long avgBitrate;

    public BitRateBox() {
        super(IsoFile.fourCCtoBytes(TYPE));
    }

    protected long getContentSize() {
        return 12;
    }

    public void parse(IsoBufferWrapper in, long size, BoxParser boxParser, Box lastMovieFragmentBox) throws IOException {
        bufferSizeDb = in.readUInt32();
        maxBitrate = in.readUInt32();
        avgBitrate = in.readUInt32();
    }

    protected void getContent(IsoOutputStream os) throws IOException {
        os.writeUInt32(bufferSizeDb);
        os.writeUInt32(maxBitrate);
        os.writeUInt32(avgBitrate);
    }

    public long getBufferSizeDb() {
        return bufferSizeDb;
    }

    public void setBufferSizeDb(long bufferSizeDb) {
        this.bufferSizeDb = bufferSizeDb;
    }

    public long getMaxBitrate() {
        return maxBitrate;
    }

    public void setMaxBitrate(long maxBitrate) {
        this.maxBitrate = maxBitrate;
    }

    public long getAvgBitrate() {
        return avgBitrate;
    }

    public void setAvgBitrate(long avgBitrate) {
        this.avgBitrate = avgBitrate;
    }
}