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

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/*  
 * 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 org.mp4parser.boxes.iso14496.part12;


import org.mp4parser.support.AbstractContainerBox;
import org.mp4parser.tools.Path;

import java.util.List;

/**
 * 4cc = {@value #TYPE}
 * The metadata for a presentation is stored in the single Movie Box which occurs at the top-level of a file.
 * Normally this box is close to the beginning or end of the file, though this is not required.
 */
public class MovieBox extends AbstractContainerBox {
    public static final String TYPE = "moov";

    public MovieBox() {
        super(TYPE);
    }

    public int getTrackCount() {
        return getBoxes(TrackBox.class).size();
    }


    /**
     * Returns the track numbers associated with this MovieBox.
     *
     * @return the tracknumbers (IDs) of the tracks in their order of appearance in the file
     */
    public long[] getTrackNumbers() {

        List trackBoxes = this.getBoxes(TrackBox.class);
        long[] trackNumbers = new long[trackBoxes.size()];
        for (int trackCounter = 0; trackCounter < trackBoxes.size(); trackCounter++) {
            trackNumbers[trackCounter] = trackBoxes.get(trackCounter).getTrackHeaderBox().getTrackId();
        }
        return trackNumbers;
    }

    public MovieHeaderBox getMovieHeaderBox() {
        return Path.getPath(this, "mvhd");
    }

}