Examples of javax.imageio.stream.ImageInputStream.skipBytes()

Class javax.imageio.stream.ImageInputStream

Examples of javax.imageio.stream.ImageInputStream.skipBytes()

javax.imageio.stream.ImageInputStream.skipBytes()
Moves the stream position forward by a given number of bytes. It is possible that this method will only be able to skip forward by a smaller number of bytes than requested, for example if the end of the stream is reached. In all cases, the actual number of bytes skipped is returned. The bit offset is set to zero prior to advancing the position. @param n an int containing the number of bytes tobe skipped. @return an int representing the number of bytes skipped. @exception IOException if an I/O error occurs.

                        log.trace("SOF: " + Integer.toHexString(sofType));
                    }
                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();
                        in.skipBytes(1); //data precision
                        in.skipBytes(2); //height
                        in.skipBytes(2); //width
                        int numComponents = in.readUnsignedByte();
                        if (numComponents == 1) {
                            colorSpace = ColorSpace.getInstance(

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                    }
                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();
                        in.skipBytes(1); //data precision
                        in.skipBytes(2); //height
                        in.skipBytes(2); //width
                        int numComponents = in.readUnsignedByte();
                        if (numComponents == 1) {
                            colorSpace = ColorSpace.getInstance(
                              ColorSpace.CS_GRAY);

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                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();
                        in.skipBytes(1); //data precision
                        in.skipBytes(2); //height
                        in.skipBytes(2); //width
                        int numComponents = in.readUnsignedByte();
                        if (numComponents == 1) {
                            colorSpace = ColorSpace.getInstance(
                              ColorSpace.CS_GRAY);
                        } else if (numComponents == 3) {

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                                        + ". The number of components supported are 1, 3 and 4.");
                        }
                    } finally {
                        in.reset();
                    }
                    in.skipBytes(reclen);
                    break;
                case APP2: //ICC (see ICC1V42.pdf)
                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();

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                    try {
                        reclen = jpeg.readSegmentLength();
                        // Check for ICC profile
                        byte[] iccString = new byte[11];
                        in.readFully(iccString);
                        in.skipBytes(1); //string terminator (null byte)


                        if ("ICC_PROFILE".equals(new String(iccString, "US-ASCII"))) {
                            in.skipBytes(2); //chunk sequence number and total number of chunks
                            int payloadSize = reclen - 2 - 12 - 2;
                            if (ignoreColorProfile(hints)) {

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                        byte[] iccString = new byte[11];
                        in.readFully(iccString);
                        in.skipBytes(1); //string terminator (null byte)


                        if ("ICC_PROFILE".equals(new String(iccString, "US-ASCII"))) {
                            in.skipBytes(2); //chunk sequence number and total number of chunks
                            int payloadSize = reclen - 2 - 12 - 2;
                            if (ignoreColorProfile(hints)) {
                                log.debug("Ignoring ICC profile data in JPEG");
                                in.skipBytes(payloadSize);
                            } else {

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                        if ("ICC_PROFILE".equals(new String(iccString, "US-ASCII"))) {
                            in.skipBytes(2); //chunk sequence number and total number of chunks
                            int payloadSize = reclen - 2 - 12 - 2;
                            if (ignoreColorProfile(hints)) {
                                log.debug("Ignoring ICC profile data in JPEG");
                                in.skipBytes(payloadSize);
                            } else {
                                byte[] buf = new byte[payloadSize];
                                in.readFully(buf);
                                if (iccStream == null) {
                                    if (log.isDebugEnabled()) {

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                            }
                        }
                    } finally {
                        in.reset();
                    }
                    in.skipBytes(reclen);
                    break;
                case APPE: //Adobe-specific (see 5116.DCT_Filter.pdf)
                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();

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                            appeFound = true;
                        }
                    } finally {
                        in.reset();
                    }
                    in.skipBytes(reclen);
                    break;
                default:
                    jpeg.skipCurrentMarkerSegment();
                }
            }

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                        assertTrue("readFully(double[])", Arrays.equals(expected, actual));
                        break;
                    }
                    case 21: {
                        final long length = random.nextInt(ARRAY_MAX_SIZE);
                        final long n = t.skipBytes(length);
                        assertFalse("Reached EOF", n < 0);
                        r.readFully(new byte[(int) n]);
                        assertEquals("skipBytes(int)", r.getStreamPosition(), t.getStreamPosition());
                        break;
                    }

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