How to use

skip

method

in

org.jcodec.common.NIOUtils

public void parse(ByteBuffer input) {
  super.parse(input);
  NIOUtils.skip(input, 4);
  flags = input.getInt();
  timescale = input.getInt();
  frameDuration = input.getInt();
  numFrames = input.get();
  NIOUtils.skip(input, 1);
}

public void parse(ByteBuffer input) {
  super.parse(input);
  NIOUtils.skip(input, 4);
  flags = input.getInt();
  timescale = input.getInt();
  frameDuration = input.getInt();
  numFrames = input.get();
  NIOUtils.skip(input, 1);
}

public static void writePascalString(ByteBuffer buffer, String string, int maxLen) {
  buffer.put((byte) string.length());
  buffer.put(asciiString(string));
  skip(buffer, maxLen - string.length());
}

public static void writePascalString(ByteBuffer buffer, String string, int maxLen) {
  buffer.put((byte) string.length());
  buffer.put(asciiString(string));
  skip(buffer, maxLen - string.length());
}

  public static int probe(final ByteBuffer b) {
    ByteBuffer fork = b.duplicate();
    int success = 0;
    int total = 0;
    while (fork.remaining() >= 8) {
      long len = fork.getInt() & 0xffffffffL;
      int fcc = fork.getInt();
      int hdrLen = 8;
      if (len == 1) {
        len = fork.getLong();
        hdrLen = 16;
      } else if (len < 8)
        break;
      if (fcc == ftyp && len < 64 || fcc == moov && len < 100 * 1024 * 1024 || fcc == free || fcc == mdat || fcc == wide)
        success++;
      total++;
      if (len >= Integer.MAX_VALUE)
        break;
      NIOUtils.skip(fork, (int) (len - hdrLen));
    }

    return total == 0 ? 0 : success * 100 / total;
  }
}

  public static int probe(final ByteBuffer b) {
    ByteBuffer fork = b.duplicate();
    int success = 0;
    int total = 0;
    while (fork.remaining() >= 8) {
      long len = fork.getInt() & 0xffffffffL;
      int fcc = fork.getInt();
      int hdrLen = 8;
      if (len == 1) {
        len = fork.getLong();
        hdrLen = 16;
      } else if (len < 8)
        break;
      if (fcc == ftyp && len < 64 || fcc == moov && len < 100 * 1024 * 1024 || fcc == free || fcc == mdat || fcc == wide)
        success++;
      total++;
      if (len >= Integer.MAX_VALUE)
        break;
      NIOUtils.skip(fork, (int) (len - hdrLen));
    }

    return total == 0 ? 0 : success * 100 / total;
  }
}

@Override
public void parse(ByteBuffer input) {
  NIOUtils.skip(input, 1);
  profile = input.get() & 0xff;
  profileCompat = input.get() & 0xff;
  level = input.get() & 0xff;
  int flags = input.get() & 0xff;
  nalLengthSize = (flags & 0x03) + 1;
  int nSPS = input.get() & 0x1f; // 3 bits reserved + 5 bits number of
                  // sps
  for (int i = 0; i < nSPS; i++) {
    int spsSize = input.getShort();
    Assert.assertEquals(0x27, input.get() & 0x3f);
    spsList.add(NIOUtils.read(input, spsSize - 1));
  }
  int nPPS = input.get() & 0xff;
  for (int i = 0; i < nPPS; i++) {
    int ppsSize = input.getShort();
    Assert.assertEquals(0x28, input.get() & 0x3f);
    ppsList.add(NIOUtils.read(input, ppsSize - 1));
  }
}

@Override
public void parse(ByteBuffer input) {
  NIOUtils.skip(input, 1);
  profile = input.get() & 0xff;
  profileCompat = input.get() & 0xff;
  level = input.get() & 0xff;
  int flags = input.get() & 0xff;
  nalLengthSize = (flags & 0x03) + 1;
  int nSPS = input.get() & 0x1f; // 3 bits reserved + 5 bits number of
                  // sps
  for (int i = 0; i < nSPS; i++) {
    int spsSize = input.getShort();
    Assert.assertEquals(0x27, input.get() & 0x3f);
    spsList.add(NIOUtils.read(input, spsSize - 1));
  }
  int nPPS = input.get() & 0xff;
  for (int i = 0; i < nPPS; i++) {
    int ppsSize = input.getShort();
    Assert.assertEquals(0x28, input.get() & 0x3f);
    ppsList.add(NIOUtils.read(input, ppsSize - 1));
  }
}

public void write(ByteBuffer buf) {
  ByteBuffer dup = buf.duplicate();
  NIOUtils.skip(buf, 8);
  doWrite(buf);
  header.setBodySize(buf.position() - dup.position() - 8);
  Assert.assertEquals(header.headerSize(), 8);
  header.write(dup);
}

public void parse(ByteBuffer input) {
  super.parse(input);
  if (version == 0) {
    created = fromMovTime(input.getInt());
    modified = fromMovTime(input.getInt());
    timescale = input.getInt();
    duration = input.getInt();
  } else if (version == 1) {
    created = fromMovTime((int) input.getLong());
    modified = fromMovTime((int) input.getLong());
    timescale = input.getInt();
    duration = input.getLong();
  } else {
    throw new RuntimeException("Unsupported version");
  }
  rate = readRate(input);
  volume = readVolume(input);
  NIOUtils.skip(input, 10);
  matrix = readMatrix(input);
  NIOUtils.skip(input, 24);
  nextTrackId = input.getInt();
}

public void write(ByteBuffer buf) {
  ByteBuffer dup = buf.duplicate();
  NIOUtils.skip(buf, 8);
  doWrite(buf);
  header.setBodySize(buf.position() - dup.position() - 8);
  Assert.assertEquals(header.headerSize(), 8);
  header.write(dup);
}

public void parse(ByteBuffer input) {
  super.parse(input);
  if (version == 0) {
    created = fromMovTime(input.getInt());
    modified = fromMovTime(input.getInt());
    timescale = input.getInt();
    duration = input.getInt();
  } else if (version == 1) {
    created = fromMovTime((int) input.getLong());
    modified = fromMovTime((int) input.getLong());
    timescale = input.getInt();
    duration = input.getLong();
  } else {
    throw new RuntimeException("Unsupported version");
  }
  rate = readRate(input);
  volume = readVolume(input);
  NIOUtils.skip(input, 10);
  matrix = readMatrix(input);
  NIOUtils.skip(input, 24);
  nextTrackId = input.getInt();
}

volumeAttributes = is.getInt();
fsId = is.getShort();
NIOUtils.skip(is, 10);

volumeAttributes = is.getInt();
fsId = is.getShort();
NIOUtils.skip(is, 10);