Examples of InvalidFileStructureException

net.sourceforge.jiu.codecs.InvalidFileStructureException
This exception is thrown during image loading, when the decoding process is made impossible by errors in the image file. If a codec has recognized the file format but finds irregularities in the data and cannot continue loading, it is supposed to throw an instance of this exception class. An unexpected end of the input stream also falls into this category. This typically means that the file is corrupt, but of course it could also be because of an error in the codec implementation.
If the format is not recognized at all, a {@link WrongFileFormatException}should be thrown.
If the format is recognized but cannot be loaded because the codec does not fully support the file format, a {@link UnsupportedTypeException}should be thrown. @author Marco Schmidt @see UnsupportedTypeException @see WrongFileFormatException

Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

          "IFF ILBM HAM image file with number of planes " +
          "other than 6 or 8 (got " + numPlanes + ").");
      }
      if (palette == null)
      {
        throw new InvalidFileStructureException("Invalid IFF ILBM " +
          "file: HAM (Hold And Modify) image without a palette.");
      }
      int numPaletteEntries = palette.getNumEntries();
      if (ham6 && numPaletteEntries < 16)
      {
        throw new InvalidFileStructureException("Invalid IFF ILBM " +
          "file: HAM (Hold And Modify) 6 bit image with a " +
          "number of palette entries less than 16 (" +
          numPaletteEntries + ").");
      }
      if (ham8 && numPaletteEntries < 64)
      {
        throw new InvalidFileStructureException("Invalid IFF ILBM " +
          "file: HAM (Hold And Modify) 8 bit image with a " +
          "number of palette entries less than 64 (" +
          numPaletteEntries + ").");
      }
    }

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

      {
        checkAndLoad();
      }
      catch (IOException ioe)
      {
        throw new InvalidFileStructureException("I/O error while loading: " + ioe.toString());
      }
    }
    else
    {
      throw new OperationFailedException("Only loading from IFF is supported.");

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

  {
    while (length > 0)
    {
      if (length < 17)
      {
        throw new InvalidFileStructureException("DHT marker - " +
          "less than 17 bytes left.");
      }
      JPEGHuffmanTable table = new JPEGHuffmanTable();
      int classId = in.readUnsignedByte();
      // class (AC or DC)
      int tableClass = (classId >> 4) & 0x0f;
      if (tableClass != JPEGHuffmanTable.TABLE_CLASS_AC &&
        tableClass != JPEGHuffmanTable.TABLE_CLASS_DC)
      {
        throw new InvalidFileStructureException(
          "Table class in DHT marker is neither AC nor DC.");
      }
      table.setClassAcDc(tableClass);
      // ID
      int tableId = classId & 0x0f;
      table.setId(tableId);
      // codes
      byte[] numCodes = new byte[16];
      in.readFully(numCodes);
      length -= 17;
      int[][] codes = new int[16][];
      for (int codeLength = 1; codeLength <= 16; codeLength++)
      {
        int number = numCodes[codeLength - 1] & 0xff;
        if (length < number)
        {
          throw new InvalidFileStructureException(
            "Not enough data left in DHT marker for codes of " +
            "length " + codeLength + ".");
        }
        codes[codeLength - 1] = new int[number];
        for (int codeIndex = 0; codeIndex < number; codeIndex++)

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

          table.setElementPrecision(16);
          break;
        }
        default:
        {
          throw new InvalidFileStructureException(
            "Not a valid value for quantization table element precision: " +
            elementPrecision + " (expected 0 or 1).");
        }
      }
      int id = precId & 0x0f;
      if (id > 3)
      {
        throw new InvalidFileStructureException(
          "Not a valid quantization table id: " +
          id + " (expected 0 to 3).");
      }
      table.setId(id);
      // check if there's enough data left for the table elements
      int tableDataLength = JPEGConstants.SAMPLES_PER_BLOCK * (elementPrecision + 1); 
      if (length < tableDataLength)
      {
        throw new InvalidFileStructureException(
          "Not enough data left in marker for quantization table data: " +
          length + "byte(s) (expected at least " + tableDataLength + ").");
      }
      int[] data = new int[JPEGConstants.SAMPLES_PER_BLOCK];
      for (int i = 0; i < data.length; i++)

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

    IOException,
    UnsupportedTypeException
  {
    if (length < 9)
    {
      throw new InvalidFileStructureException(
        "JPEG SOF header length must be at least nine bytes; got " +
        length + ".");
    }
    byte[] data = new byte[6];
    in.readFully(data);
    JPEGFrame frame = new JPEGFrame();
    // sample precision
    int samplePrecision = data[0] & 0xff;
    if (samplePrecision != 8)
    {
      throw new UnsupportedTypeException("Unsupported JPEG sample precision: " +
        samplePrecision);
    }
    frame.setSamplePrecision(samplePrecision);
    // height
    int height = ArrayConverter.getShortBEAsInt(data, 1);
    if (height < 1)
    {
      throw new InvalidFileStructureException(
        "JPEG SOF height value must be 1 or higher; got " +
        height + ".");
    }
    frame.setHeight(height);
    // width
    int width = ArrayConverter.getShortBEAsInt(data, 3);
    if (width < 1)
    {
      throw new InvalidFileStructureException(
        "JPEG SOF width value must be 1 or higher; got " +
        width + ".");
    }
    frame.setWidth(width);
    // number of components (= channels)
    int numComponents = data[5] & 0xff;
    if (numComponents != 1)
    {
      throw new UnsupportedTypeException("Unsupported number of JPEG components: " +
        numComponents);
    }
    frame.setNumComponents(numComponents);
    if (length - 6 != numComponents * 3)
    {
      throw new InvalidFileStructureException(
        "SOF marker has not expected size for " +
        numComponents + " component(s); got " + length +
        " instead of " + (6 + numComponents * 3));
    }
    JPEGFrameComponent[] frameComponents = new JPEGFrameComponent[numComponents];

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

    IOException,
    UnsupportedTypeException
  {
    if (length < 6)
    {
      throw new InvalidFileStructureException("SOS marker must be at least six bytes large; got " + length);
    }
    int numScanComponents = in.readUnsignedByte();
    length--;
    if (numScanComponents < 1)
    {
      throw new InvalidFileStructureException("Number of scan components must be one or larger.");
    }
    JPEGScan scan = new JPEGScan();
    scan.setNumComponents(numScanComponents);
    JPEGScanComponentSpecification[] specs = new JPEGScanComponentSpecification[numScanComponents]; 
    byte[] data = new byte[2];
    for (int i = 0; i < numScanComponents; i++)
    {
      in.readFully(data);
      length -= 2;
      int componentSelector = data[0] & 0xff;
      int dcTableSelector = (data[1] & 0xf0) >> 4;
      int acTableSelector = data[1] & 0x0f;
      JPEGScanComponentSpecification spec = new JPEGScanComponentSpecification();
      spec.setAcEntropyTable(acTableSelector);
      spec.setDcEntropyTable(dcTableSelector);
      spec.setComponent(componentSelector);
      specs[i] = spec;
    }
    scan.setCompSpecs(specs);
    if (length != 3)
    {
      throw new InvalidFileStructureException(
        "Expected exactly three bytes left after scan component specs; got " +
        length);
    }
    data = new byte[3];
    in.readFully(data);

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

      throw new WrongFileFormatException("Not a BMP file (first two bytes are not 0x42 0x4d).");
    }
    dataOffset = ArrayConverter.getIntLE(header, 0x0a);
    if (dataOffset < 54)
    {
      throw new InvalidFileStructureException("BMP data expected to be 54dec or larger, got " + dataOffset);
    }
    imageWidth = ArrayConverter.getIntLE(header, 0x12);
    imageHeight = ArrayConverter.getIntLE(header, 0x16);
    if (imageWidth < 1 || imageHeight < 1)
    {
      throw new InvalidFileStructureException("BMP image width and height must be larger than 0, got " + imageWidth + " x " + imageHeight);
    }
    int planes = ArrayConverter.getShortLE(header, 0x1a);
    if (planes != 1)
    {
      throw new InvalidFileStructureException("Can only handle BMP number of planes = 1, got " + planes);
    }
    colorDepth = ArrayConverter.getShortLE(header, 0x1c);
    if (colorDepth != 1 && colorDepth != 4 && colorDepth != 8 && colorDepth != 24)
    {
      // TO DO: add support for 16 bpp BMP reading
      throw new InvalidFileStructureException("Unsupported BMP color depth: " + colorDepth);
    }
    compression = ArrayConverter.getIntLE(header, 0x1e);
    if (compression != 0 && !(compression == 1 && colorDepth == 8) && !(compression == 2 && colorDepth == 4))
    {
      throw new InvalidFileStructureException("Unsupported BMP compression type / color depth combination: " + 
        compression + " / " + colorDepth);
    }
    float dpiXValue = ArrayConverter.getIntLE(header, 0x26) / (100.0f / 2.54f);
    float dpiYValue = ArrayConverter.getIntLE(header, 0x2a) / (100.0f / 2.54f);
    setDpi((int)dpiXValue, (int)dpiYValue);

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

      int expectedPaletteSize = 4 * numPaletteEntries;
      int headerSpaceLeft = dataOffset - 54;
      bytesToSkip = headerSpaceLeft - expectedPaletteSize;
      if (bytesToSkip < 0)
      {
        throw new InvalidFileStructureException("Not enough space in header for palette with " + 
          numPaletteEntries + "entries.");
      }
      palette = new Palette(numPaletteEntries);
      for (int index = 0; index < numPaletteEntries; index++)
      {

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

        {
          numInflated = inflater.inflate(data, 0, numBytes);
        }
        catch (DataFormatException dfe)
        {
          throw new InvalidFileStructureException("Error in compressed input data: " + dfe.toString());
        }
        // store decompressed data and update number of bytes left to decompress
        if (numInflated > 0)
        {
          putBytes(data, 0, numInflated);

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Examples of net.sourceforge.jiu.codecs.InvalidFileStructureException

            int num = in.readUnsignedByte();
            if (num < 1 || index + num > bytesPerRow)
            {
              String message = "At index=" + index + ", y=" + y + " there is a run length of " + num;
              System.err.println("ERROR decoding RLE: " + message);
              throw new InvalidFileStructureException(message);
            }
            byte value = in.readByte();
            while (num-- > 0)
            {
              row[index++] = value;

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