org.mp4parser.muxer.FileRandomAccessSourceImpl Maven / Gradle / Ivy

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This package has a focus on file operation. It can read A/V data from Random Access Datasources

There is a newer version: 1.9.56

package org.mp4parser.muxer;

import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;

import static org.mp4parser.tools.CastUtils.l2i;


public class FileRandomAccessSourceImpl implements RandomAccessSource {
    private RandomAccessFile raf;

    public FileRandomAccessSourceImpl(RandomAccessFile raf) {
        this.raf = raf;
    }

    public ByteBuffer get(long offset, long size) throws IOException {
        byte[] b = new byte[l2i(size)];
        raf.seek(offset);
        raf.read(b);
        return ByteBuffer.wrap(b);
    }


    public void close() throws IOException {
        raf.close();
    }
}