FrameSizeTest.java 文件源码

public static void main(String[] args) throws Exception {
    boolean res=true;
    Mixer.Info[] mixerInfo = AudioSystem.getMixerInfo();
    for (int i = 0; i < mixerInfo.length; i++) {
        Mixer mixer = AudioSystem.getMixer(mixerInfo[i]);
        System.out.println(mixer);
        Line.Info[] lineinfo = mixer.getSourceLineInfo();
        for (int j = 0; j < lineinfo.length; j++) {
            System.out.println("  " + lineinfo[j]);
            try {
                AudioFormat[] formats = ((DataLine.Info)lineinfo[j]).getFormats();
                for (int k = 0; k < formats.length; k++) {
                    if ( (formats[k].getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)
                          || formats[k].getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED))
                         && (formats[k].getFrameSize() != AudioSystem.NOT_SPECIFIED)
                         && ((formats[k].getSampleSizeInBits() == 16) || (formats[k].getSampleSizeInBits() == 8))
                         && ((((formats[k].getSampleSizeInBits() + 7) / 8) * formats[k].getChannels()) != formats[k].getFrameSize())) {
                        System.out.println(" # " + formats[k] + ", getFrameSize() wrongly returns"+ formats[k].getFrameSize());
                        res=false;
                    }
                }
            } catch (ClassCastException e) {
            }
        }
    }

    if (res) {
        System.out.println("Test passed");
    } else {
        System.out.println("Test failed");
        throw new Exception("Test failed");
    }
}