RecognizeHugeAiffFiles.java 文件源码

/**
 * Tests the {@code AudioFileFormat} fetched from the fake header.
 * <p>
 * Note that the frameLength and byteLength are stored as int which means
 * that {@code AudioFileFormat} will store the data above {@code MAX_INT} as
 * NOT_SPECIFIED.
 */
private static void testAFF(final byte bits, final int rate,
                            final int channel, final long frameLength)
        throws Exception {
    final byte[] header = createHeader(bits, rate, channel, frameLength);
    final ByteArrayInputStream fake = new ByteArrayInputStream(header);
    final AudioFileFormat aff = AudioSystem.getAudioFileFormat(fake);

    if (aff.getType() != AudioFileFormat.Type.AIFF) {
        throw new RuntimeException("Error");
    }

    if (frameLength <= Integer.MAX_VALUE) {
        if (aff.getFrameLength() != frameLength) {
            System.err.println("Expected: " + frameLength);
            System.err.println("Actual: " + aff.getFrameLength());
            throw new RuntimeException();
        }
    } else {
        if (aff.getFrameLength() != AudioSystem.NOT_SPECIFIED) {
            System.err.println("Expected: " + AudioSystem.NOT_SPECIFIED);
            System.err.println("Actual: " + aff.getFrameLength());
            throw new RuntimeException();
        }
    }
    validateFormat(bits, rate, channel, aff.getFormat());
}