Пример #1
0
  private static void bufSizeTest() throws Exception {
    int w, h, i, subsamp;
    byte[] srcBuf, jpegBuf;
    TJCompressor tjc = null;
    Random r = new Random();

    try {
      tjc = new TJCompressor();
      System.out.println("Buffer size regression test");
      for (subsamp = 0; subsamp < TJ.NUMSAMP; subsamp++) {
        for (w = 1; w < 48; w++) {
          int maxh = (w == 1) ? 2048 : 48;
          for (h = 1; h < maxh; h++) {
            if (h % 100 == 0) System.out.format("%04d x %04d\b\b\b\b\b\b\b\b\b\b\b", w, h);
            srcBuf = new byte[w * h * 4];
            jpegBuf = new byte[TJ.bufSize(w, h, subsamp)];
            for (i = 0; i < w * h * 4; i++) {
              srcBuf[i] = (byte) (r.nextInt(2) * 255);
            }
            tjc.setSourceImage(srcBuf, w, 0, h, TJ.PF_BGRX);
            tjc.setSubsamp(subsamp);
            tjc.setJPEGQuality(100);
            tjc.compress(jpegBuf, 0);

            srcBuf = new byte[h * w * 4];
            jpegBuf = new byte[TJ.bufSize(h, w, subsamp)];
            for (i = 0; i < h * w * 4; i++) {
              srcBuf[i] = (byte) (r.nextInt(2) * 255);
            }
            tjc.setSourceImage(srcBuf, h, 0, w, TJ.PF_BGRX);
            tjc.compress(jpegBuf, 0);
          }
        }
      }
      System.out.println("Done.      ");
    } catch (Exception e) {
      if (tjc != null) tjc.close();
      throw e;
    }
    if (tjc != null) tjc.close();
  }
Пример #2
0
  public static void main(String[] argv) {

    BufferedImage img = null;
    byte[] bmpBuf = null;
    TJTransform xform = new TJTransform();
    int flags = 0;

    try {

      sf = TJ.getScalingFactors();

      if (argv.length < 2) {
        usage();
      }

      TJScalingFactor scaleFactor = new TJScalingFactor(1, 1);
      String inFormat = "jpg", outFormat = "jpg";
      int outSubsamp = -1, outQual = 95;
      boolean display = false;

      if (argv.length > 1) {
        for (int i = 1; i < argv.length; i++) {
          if (argv[i].length() < 2) continue;
          if (argv[i].length() > 2 && argv[i].substring(0, 3).equalsIgnoreCase("-sc")) {
            int match = 0;
            if (i < argv.length - 1) {
              String[] scaleArg = argv[++i].split("/");
              if (scaleArg.length == 2) {
                TJScalingFactor tempsf =
                    new TJScalingFactor(
                        Integer.parseInt(scaleArg[0]), Integer.parseInt(scaleArg[1]));
                for (int j = 0; j < sf.length; j++) {
                  if (tempsf.equals(sf[j])) {
                    scaleFactor = sf[j];
                    match = 1;
                    break;
                  }
                }
              }
            }
            if (match != 1) usage();
          }
          if (argv[i].equalsIgnoreCase("-h") || argv[i].equalsIgnoreCase("-?")) usage();
          if (argv[i].length() > 2 && argv[i].substring(0, 3).equalsIgnoreCase("-sa")) {
            if (i < argv.length - 1) {
              i++;
              if (argv[i].substring(0, 1).equalsIgnoreCase("g")) outSubsamp = TJ.SAMP_GRAY;
              else if (argv[i].equals("444")) outSubsamp = TJ.SAMP_444;
              else if (argv[i].equals("422")) outSubsamp = TJ.SAMP_422;
              else if (argv[i].equals("420")) outSubsamp = TJ.SAMP_420;
              else usage();
            } else usage();
          }
          if (argv[i].substring(0, 2).equalsIgnoreCase("-q")) {
            if (i < argv.length - 1) {
              int qual = Integer.parseInt(argv[++i]);
              if (qual >= 1 && qual <= 100) outQual = qual;
              else usage();
            } else usage();
          }
          if (argv[i].substring(0, 2).equalsIgnoreCase("-g")) xform.options |= TJTransform.OPT_GRAY;
          if (argv[i].equalsIgnoreCase("-hflip")) xform.op = TJTransform.OP_HFLIP;
          if (argv[i].equalsIgnoreCase("-vflip")) xform.op = TJTransform.OP_VFLIP;
          if (argv[i].equalsIgnoreCase("-transpose")) xform.op = TJTransform.OP_TRANSPOSE;
          if (argv[i].equalsIgnoreCase("-transverse")) xform.op = TJTransform.OP_TRANSVERSE;
          if (argv[i].equalsIgnoreCase("-rot90")) xform.op = TJTransform.OP_ROT90;
          if (argv[i].equalsIgnoreCase("-rot180")) xform.op = TJTransform.OP_ROT180;
          if (argv[i].equalsIgnoreCase("-rot270")) xform.op = TJTransform.OP_ROT270;
          if (argv[i].equalsIgnoreCase("-custom")) xform.cf = new TJExample();
          else if (argv[i].length() > 2 && argv[i].substring(0, 2).equalsIgnoreCase("-c")) {
            if (i >= argv.length - 1) usage();
            String[] cropArg = argv[++i].split(",");
            if (cropArg.length != 3) usage();
            String[] dimArg = cropArg[2].split("[xX]");
            if (dimArg.length != 2) usage();
            int tempx = Integer.parseInt(cropArg[0]);
            int tempy = Integer.parseInt(cropArg[1]);
            int tempw = Integer.parseInt(dimArg[0]);
            int temph = Integer.parseInt(dimArg[1]);
            if (tempx < 0 || tempy < 0 || tempw < 0 || temph < 0) usage();
            xform.x = tempx;
            xform.y = tempy;
            xform.width = tempw;
            xform.height = temph;
            xform.options |= TJTransform.OPT_CROP;
          }
          if (argv[i].substring(0, 2).equalsIgnoreCase("-d")) display = true;
          if (argv[i].equalsIgnoreCase("-fastupsample")) {
            System.out.println("Using fast upsampling code");
            flags |= TJ.FLAG_FASTUPSAMPLE;
          }
          if (argv[i].equalsIgnoreCase("-fastdct")) {
            System.out.println("Using fastest DCT/IDCT algorithm");
            flags |= TJ.FLAG_FASTDCT;
          }
          if (argv[i].equalsIgnoreCase("-accuratedct")) {
            System.out.println("Using most accurate DCT/IDCT algorithm");
            flags |= TJ.FLAG_ACCURATEDCT;
          }
        }
      }
      String[] inFileTokens = argv[0].split("\\.");
      if (inFileTokens.length > 1) inFormat = inFileTokens[inFileTokens.length - 1];
      String[] outFileTokens;
      if (display) outFormat = "bmp";
      else {
        outFileTokens = argv[1].split("\\.");
        if (outFileTokens.length > 1) outFormat = outFileTokens[outFileTokens.length - 1];
      }

      File file = new File(argv[0]);
      int width, height;

      if (inFormat.equalsIgnoreCase("jpg")) {
        FileInputStream fis = new FileInputStream(file);
        int inputSize = fis.available();
        if (inputSize < 1) {
          System.out.println("Input file contains no data");
          System.exit(1);
        }
        byte[] inputBuf = new byte[inputSize];
        fis.read(inputBuf);
        fis.close();

        TJDecompressor tjd;
        if (xform.op != TJTransform.OP_NONE || xform.options != 0 || xform.cf != null) {
          TJTransformer tjt = new TJTransformer(inputBuf);
          TJTransform[] t = new TJTransform[1];
          t[0] = xform;
          t[0].options |= TJTransform.OPT_TRIM;
          TJDecompressor[] tjdx = tjt.transform(t, 0);
          tjd = tjdx[0];
        } else tjd = new TJDecompressor(inputBuf);

        width = tjd.getWidth();
        height = tjd.getHeight();
        int inSubsamp = tjd.getSubsamp();
        System.out.println(
            "Source Image: "
                + width
                + " x "
                + height
                + " pixels, "
                + sampName[inSubsamp]
                + " subsampling");
        if (outSubsamp < 0) outSubsamp = inSubsamp;

        if (outFormat.equalsIgnoreCase("jpg")
            && (xform.op != TJTransform.OP_NONE || xform.options != 0)
            && scaleFactor.isOne()) {
          file = new File(argv[1]);
          FileOutputStream fos = new FileOutputStream(file);
          fos.write(tjd.getJPEGBuf(), 0, tjd.getJPEGSize());
          fos.close();
          System.exit(0);
        }

        width = scaleFactor.getScaled(width);
        height = scaleFactor.getScaled(height);

        if (!outFormat.equalsIgnoreCase("jpg"))
          img = tjd.decompress(width, height, BufferedImage.TYPE_INT_RGB, flags);
        else bmpBuf = tjd.decompress(width, 0, height, TJ.PF_BGRX, flags);
        tjd.close();
      } else {
        img = ImageIO.read(file);
        if (img == null) throw new Exception("Input image type not supported.");
        width = img.getWidth();
        height = img.getHeight();
        if (outSubsamp < 0) {
          if (img.getType() == BufferedImage.TYPE_BYTE_GRAY) outSubsamp = TJ.SAMP_GRAY;
          else outSubsamp = TJ.SAMP_444;
        }
      }
      System.gc();
      if (!display)
        System.out.print("Dest. Image (" + outFormat + "):  " + width + " x " + height + " pixels");

      if (display) {
        ImageIcon icon = new ImageIcon(img);
        JLabel label = new JLabel(icon, JLabel.CENTER);
        JOptionPane.showMessageDialog(null, label, "Output Image", JOptionPane.PLAIN_MESSAGE);
      } else if (outFormat.equalsIgnoreCase("jpg")) {
        System.out.println(", " + sampName[outSubsamp] + " subsampling, quality = " + outQual);
        TJCompressor tjc = new TJCompressor();
        int jpegSize;
        byte[] jpegBuf;

        tjc.setSubsamp(outSubsamp);
        tjc.setJPEGQuality(outQual);
        if (img != null) tjc.setSourceImage(img, 0, 0, 0, 0);
        else {
          tjc.setSourceImage(bmpBuf, 0, 0, width, 0, height, TJ.PF_BGRX);
        }
        jpegBuf = tjc.compress(flags);
        jpegSize = tjc.getCompressedSize();
        tjc.close();

        file = new File(argv[1]);
        FileOutputStream fos = new FileOutputStream(file);
        fos.write(jpegBuf, 0, jpegSize);
        fos.close();
      } else {
        System.out.print("\n");
        file = new File(argv[1]);
        ImageIO.write(img, outFormat, file);
      }

    } catch (Exception e) {
      e.printStackTrace();
      System.exit(-1);
    }
  }
Пример #3
0
  private static int compTest(
      TJCompressor tjc,
      byte[] dstBuf,
      int w,
      int h,
      int pf,
      String baseName,
      int subsamp,
      int jpegQual,
      int flags)
      throws Exception {
    String tempstr;
    byte[] srcBuf = null;
    BufferedImage img = null;
    String pfStr;
    double t;
    int size = 0, ps, imgType = pf;

    if (bi) {
      pf = biTypePF(imgType);
      pfStr = biTypeStr(imgType);
    } else pfStr = pixFormatStr[pf];
    ps = TJ.getPixelSize(pf);

    System.out.print(pfStr + " ");
    if (bi) System.out.print("(" + pixFormatStr[pf] + ") ");
    if ((flags & TJ.FLAG_BOTTOMUP) != 0) System.out.print("Bottom-Up");
    else System.out.print("Top-Down ");
    System.out.print(" -> " + subNameLong[subsamp] + " ");
    if (yuv == YUVENCODE) System.out.print("YUV ... ");
    else System.out.print("Q" + jpegQual + " ... ");

    if (bi) {
      img = new BufferedImage(w, h, imgType);
      initImg(img, pf, flags);
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + "_Q"
              + jpegQual
              + ".png";
      File file = new File(tempstr);
      ImageIO.write(img, "png", file);
    } else {
      srcBuf = new byte[w * h * ps + 1];
      initBuf(srcBuf, w, w * ps, h, pf, flags);
    }
    Arrays.fill(dstBuf, (byte) 0);

    t = getTime();
    tjc.setSubsamp(subsamp);
    tjc.setJPEGQuality(jpegQual);
    if (bi) {
      if (yuv == YUVENCODE) tjc.encodeYUV(img, dstBuf, flags);
      else tjc.compress(img, dstBuf, flags);
    } else {
      tjc.setSourceImage(srcBuf, w, 0, h, pf);
      if (yuv == YUVENCODE) tjc.encodeYUV(dstBuf, flags);
      else tjc.compress(dstBuf, flags);
    }
    size = tjc.getCompressedSize();
    t = getTime() - t;

    if (yuv == YUVENCODE)
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + ".yuv";
    else
      tempstr =
          baseName
              + "_enc_"
              + pfStr
              + "_"
              + (((flags & TJ.FLAG_BOTTOMUP) != 0) ? "BU" : "TD")
              + "_"
              + subName[subsamp]
              + "_Q"
              + jpegQual
              + ".jpg";
    writeJPEG(dstBuf, size, tempstr);

    if (yuv == YUVENCODE) {
      if (checkBufYUV(dstBuf, size, w, h, subsamp) == 1) System.out.print("Passed.");
      else {
        System.out.print("FAILED!");
        exitStatus = -1;
      }
    } else System.out.print("Done.");
    System.out.format("  %.6f ms\n", t * 1000.);
    System.out.println("  Result in " + tempstr);

    return size;
  }