Examples with BmpHeaderDirectory com.drew.metadata.bmp.BmpHeaderDirectory used on opensource projects

Example 1 with BmpHeaderDirectory

use of com.drew.metadata.bmp.BmpHeaderDirectory in project UniversalMediaServer by UniversalMediaServer.

the class BMPInfo method parseMetadata.

@SuppressFBWarnings("SF_SWITCH_NO_DEFAULT")
@Override
protected void parseMetadata(Metadata metadata) {
    if (metadata == null) {
        return;
    }
    for (Directory directory : metadata.getDirectories()) {
        if (directory instanceof BmpHeaderDirectory) {
            parsedInfo.format = ImageFormat.BMP;
            if (((BmpHeaderDirectory) directory).containsTag(BmpHeaderDirectory.TAG_IMAGE_WIDTH) && ((BmpHeaderDirectory) directory).containsTag(BmpHeaderDirectory.TAG_IMAGE_HEIGHT)) {
                parsedInfo.width = ((BmpHeaderDirectory) directory).getInteger(BmpHeaderDirectory.TAG_IMAGE_WIDTH);
                parsedInfo.height = ((BmpHeaderDirectory) directory).getInteger(BmpHeaderDirectory.TAG_IMAGE_HEIGHT);
            }
        }
        if (((BmpHeaderDirectory) directory).containsTag(BmpHeaderDirectory.TAG_BITS_PER_PIXEL) && ((BmpHeaderDirectory) directory).containsTag(BmpHeaderDirectory.TAG_COMPRESSION) && ((BmpHeaderDirectory) directory).containsTag(BmpHeaderDirectory.TAG_HEADER_SIZE)) {
            Integer compression = ((BmpHeaderDirectory) directory).getInteger(BmpHeaderDirectory.TAG_COMPRESSION);
            Integer headerSize = ((BmpHeaderDirectory) directory).getInteger(BmpHeaderDirectory.TAG_HEADER_SIZE);
            Integer bitsPerPixel = ((BmpHeaderDirectory) directory).getInteger(BmpHeaderDirectory.TAG_BITS_PER_PIXEL);
            if (compression != null && headerSize != null && bitsPerPixel != null) {
                CompressionType compressionType = CompressionType.typeOf(compression.intValue(), headerSize.intValue());
                ((BMPParseInfo) parsedInfo).compressionType = compressionType;
                if (parsedInfo.bitDepth != null) {
                    switch(compressionType) {
                        case BIT_FIELDS:
                        case HUFFMAN_1D:
                        case NONE:
                        case PNG:
                        case RLE24:
                        case RLE4:
                        case RLE8:
                            // "qualified guessing"
                            switch(bitsPerPixel.intValue()) {
                                case 1:
                                    parsedInfo.numComponents = 1;
                                    parsedInfo.colorSpaceType = ColorSpaceType.TYPE_GRAY;
                                    parsedInfo.bitDepth = 1;
                                    break;
                                case 2:
                                case 4:
                                case 8:
                                    parsedInfo.numComponents = 3;
                                    parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                                    parsedInfo.bitDepth = 8;
                                    break;
                                case 16:
                                    // assuming 5:6:5 - could also be 5:5:5:1
                                    parsedInfo.numComponents = 3;
                                    parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                                    parsedInfo.bitDepth = 5;
                                    break;
                                case 24:
                                    parsedInfo.numComponents = 3;
                                    parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                                    parsedInfo.bitDepth = 8;
                                    break;
                                case 32:
                                    parsedInfo.numComponents = 4;
                                    parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                                    parsedInfo.bitDepth = 8;
                                    break;
                                default:
                            }
                            break;
                        case JPEG:
                            parsedInfo.numComponents = 3;
                            parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                            parsedInfo.bitDepth = bitsPerPixel.intValue() / 3;
                            break;
                        case RGBA_BIT_FIELDS:
                            parsedInfo.numComponents = 4;
                            parsedInfo.colorSpaceType = ColorSpaceType.TYPE_RGB;
                            parsedInfo.bitDepth = bitsPerPixel.intValue() / 4;
                            break;
                        case CMYK_NONE:
                        case CMYK_RLE4:
                        case CMYK_RLE8:
                            parsedInfo.numComponents = 4;
                            parsedInfo.colorSpaceType = ColorSpaceType.TYPE_CMYK;
                            parsedInfo.bitDepth = bitsPerPixel.intValue() / 4;
                            break;
                        case UNKNOWN:
                        default:
                    }
                }
            }
        }
    }
}