OriginalFormatBox.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;

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

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

/**
 * The Original Format Box contains the four-character-code of the original untransformed sample description.
 * See ISO/IEC 14496-12 for details.
 *
 * @see ProtectionSchemeInformationBox
 */

public class OriginalFormatBox extends AbstractBox {
    public static final String TYPE = "frma";

    private byte[] dataFormat = new byte[4];

    public OriginalFormatBox() {
        super(IsoFile.fourCCtoBytes("frma"));
    }

    public byte[] getDataFormat() {
        return dataFormat;
    }

    public String getFourCC() {
        return IsoFile.bytesToFourCC(dataFormat);
    }

    public void setDataFormat(byte[] dataFormat) {
        assert dataFormat.length == 4;
        this.dataFormat = dataFormat;
    }

    protected long getContentSize() {
        return 4;
    }

    public void parse(IsoBufferWrapper in, long size, BoxParser boxParser, Box lastMovieFragmentBox) throws IOException {
        assert size == 4;
        //in.readByte(dataFormat)
        dataFormat[0] = (byte) in.readUInt8();
        dataFormat[1] = (byte) in.readUInt8();
        dataFormat[2] = (byte) in.readUInt8();
        dataFormat[3] = (byte) in.readUInt8();
    }

    protected void getContent(IsoOutputStream os) throws IOException {
        os.write(dataFormat);
    }

    public String toString() {
        return "OriginalFormatBox[dataFormat=" + Arrays.toString(getDataFormat()) + "]";
    }
}