Java AudioInputStream.getFrameLength方法代码示例

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Finishes the recording process by closing the file.
 */
public AudioRecordingStream save()
{
  try
  {
    aos.close();
  }
  catch (IOException e)
  {
    Minim.error("AudioRecorder.save: An error occurred when trying to save the file:\n"
                + e.getMessage());
  }
  String filePath = filePath();
  AudioInputStream ais = system.getAudioInputStream(filePath);
  SourceDataLine sdl = system.getSourceDataLine(ais.getFormat(), 1024);
  // this is fine because the recording will always be 
  // in a raw format (WAV, AU, etc).
  long length = AudioUtils.frames2Millis(ais.getFrameLength(), format);
  BasicMetaData meta = new BasicMetaData(filePath, length, ais.getFrameLength());
  JSPCMAudioRecordingStream recording = new JSPCMAudioRecordingStream(system, meta, ais, sdl, 1024);
  return recording;
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {

        //$$fb the following check must come first ! Otherwise
        // the next frame length check may throw an IOException and
        // interrupt iterating File Writers. (see bug 4351296)

        // throws IllegalArgumentException if not supported
        WaveFileFormat waveFileFormat = (WaveFileFormat)getAudioFileFormat(fileType, stream);

        //$$fb when we got this far, we are committed to write this file

        // we must know the total data length to calculate the file length
        if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
            throw new IOException("stream length not specified");
        }

        int bytesWritten = writeWaveFile(stream, waveFileFormat, out);
        return bytesWritten;
    }
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Tests the {@code AudioInputStream} fetched from the fake header.
 * <p>
 * Note that the frameLength is stored as long which means that {@code
 * AudioInputStream} must store all possible data from aiff file.
 */
private static void testAIS(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 AudioInputStream ais = AudioSystem.getAudioInputStream(fake);
    final AudioFormat format = ais.getFormat();

    if (frameLength != ais.getFrameLength()) {
        System.err.println("Expected: " + frameLength);
        System.err.println("Actual: " + ais.getFrameLength());
        throw new RuntimeException();
    }
    if (ais.available() < 0) {
        System.err.println("available should be >=0: " + ais.available());
        throw new RuntimeException();
    }

    validateFormat(bits, rate, channel, format);
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {

        //$$fb the following check must come first ! Otherwise
        // the next frame length check may throw an IOException and
        // interrupt iterating File Writers. (see bug 4351296)

        // throws IllegalArgumentException if not supported
        AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream);

        // we must know the total data length to calculate the file length
        if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
            throw new IOException("stream length not specified");
        }

        int bytesWritten = writeAiffFile(stream, aiffFileFormat, out);
        return bytesWritten;
    }
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
public ExtendedClip(JuggleMasterPro objPjuggleMasterPro, byte bytPsoundFileIndex) {

		this.bytGsoundFileIndex = bytPsoundFileIndex;
		try {
			final AudioInputStream objLaudioInputStream =
															AudioSystem.getAudioInputStream(new File(Strings.doConcat(	objPjuggleMasterPro.strS_CODE_BASE,
																														Constants.strS_FILE_NAME_A[Constants.intS_FILE_FOLDER_SOUNDS],
																														objPjuggleMasterPro.chrGpathSeparator,
																														Constants.strS_FILE_SOUND_NAME_A[bytPsoundFileIndex])));
			final AudioFormat objLaudioFormat = objLaudioInputStream.getFormat();
			final DataLine.Info objLdataLineInfo =
													new DataLine.Info(Clip.class, objLaudioFormat, (int) objLaudioInputStream.getFrameLength()
																									* objLaudioFormat.getFrameSize());
			this.objGclip = (Clip) AudioSystem.getLine(objLdataLineInfo);
			this.objGclip.open(objLaudioInputStream);
		} catch (final Throwable objPthrowable) {
			Tools.err("Error while initializing sound : ", Constants.strS_FILE_SOUND_NAME_A[bytPsoundFileIndex]);
			this.objGclip = null;
		}
	}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Tests the {@code AudioInputStream} fetched from the fake header.
 * <p>
 * Note that the frameLength is stored as long which means that {@code
 * AudioInputStream} must store all possible data from wave file.
 */
private static void testAIS(final byte[] type, final int rate,
                            final int channel, final long size)
        throws Exception {
    final byte[] header = createHeader(type, rate, channel, size);
    final ByteArrayInputStream fake = new ByteArrayInputStream(header);
    final AudioInputStream ais = AudioSystem.getAudioInputStream(fake);
    final AudioFormat format = ais.getFormat();
    final long frameLength = size / format.getFrameSize();
    if (frameLength != ais.getFrameLength()) {
        System.err.println("Expected: " + frameLength);
        System.err.println("Actual: " + ais.getFrameLength());
        throw new RuntimeException();
    }
    if (ais.available() < 0) {
        System.err.println("available should be >=0: " + ais.available());
        throw new RuntimeException();
    }

    validateFormat(type[1], rate, channel, format);
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Verifies the frame length after the stream was saved/read to/from file.
 */
private static void testAfterSaveToFile(final AudioFileWriter afw,
                                        final AudioFileFormat.Type type,
                                        AudioInputStream ais)
        throws IOException {
    final File temp = File.createTempFile("sound", ".tmp");
    try {
        afw.write(ais, type, temp);
        ais = AudioSystem.getAudioInputStream(temp);
        final long frameLength = ais.getFrameLength();
        ais.close();
        validate(frameLength);
    } catch (IllegalArgumentException | UnsupportedAudioFileException
            ignored) {
    } finally {
        Files.delete(Paths.get(temp.getAbsolutePath()));
    }
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Tests the {@code AudioInputStream} fetched from the fake header.
 * <p>
 * Note that the frameLength is stored as long which means that {@code
 * AudioInputStream} must store all possible data from wave file.
 */
private static void testAIS(final int[] type, final int rate,
                            final int channel, final long size)
        throws Exception {
    final byte[] header = createHeader(type, rate, channel, size);
    final ByteArrayInputStream fake = new ByteArrayInputStream(header);
    final AudioInputStream ais = AudioSystem.getAudioInputStream(fake);
    final AudioFormat format = ais.getFormat();
    final long frameLength = size / format.getFrameSize();
    if (frameLength != ais.getFrameLength()) {
        System.err.println("Expected: " + frameLength);
        System.err.println("Actual: " + ais.getFrameLength());
        throw new RuntimeException();
    }
    if (ais.available() < 0) {
        System.err.println("available should be >=0: " + ais.available());
        throw new RuntimeException();
    }

    validateFormat(type[1], rate, channel, format);
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
@Override
public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {
    Objects.requireNonNull(stream);
    Objects.requireNonNull(fileType);
    Objects.requireNonNull(out);

    //$$fb the following check must come first ! Otherwise
    // the next frame length check may throw an IOException and
    // interrupt iterating File Writers. (see bug 4351296)

    // throws IllegalArgumentException if not supported
    WaveFileFormat waveFileFormat = (WaveFileFormat)getAudioFileFormat(fileType, stream);

    //$$fb when we got this far, we are committed to write this file

    // we must know the total data length to calculate the file length
    if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) {
        throw new IOException("stream length not specified");
    }

    return writeWaveFile(stream, waveFileFormat, out);
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
@Override
public AudioClip load(String file) {
    String path = Oasis.getFileSystem().find(file); 
    
    if (path == null) {
        log.warning("Could not find file: " + file);
        return null; 
    }
    
    try {
        AudioInputStream in = AudioSystem.getAudioInputStream(new File(path));
        
        int sampleRate = (int) in.getFormat().getSampleRate(); 
        int channels = in.getFormat().getChannels(); 
        
        int length = (int) in.getFrameLength(); 
        
        int bytesPerFrame = in.getFormat().getFrameSize(); 
        
        byte[] bytes = new byte[length * bytesPerFrame]; 
        
        in.read(bytes); 
        
        AudioClip clip = AudioClip.create(
                bytes.length, 
                sampleRate, 
                channels > 1, 
                bytesPerFrame / channels > 1, 
                channels == 1); 
        clip.setData(bytes); 
        
        return clip; 
    } catch (Exception e) {
        e.printStackTrace();
        log.warning("Could not read WAV data: " + file); 
        return null; 
    } 
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
private boolean loadAudioData(AudioInputStream as)  throws IOException, UnsupportedAudioFileException {
    if (DEBUG || Printer.debug)Printer.debug("JavaSoundAudioClip->openAsClip()");

    // first possibly convert this stream to PCM
    as = Toolkit.getPCMConvertedAudioInputStream(as);
    if (as == null) {
        return false;
    }

    loadedAudioFormat = as.getFormat();
    long frameLen = as.getFrameLength();
    int frameSize = loadedAudioFormat.getFrameSize();
    long byteLen = AudioSystem.NOT_SPECIFIED;
    if (frameLen != AudioSystem.NOT_SPECIFIED
        && frameLen > 0
        && frameSize != AudioSystem.NOT_SPECIFIED
        && frameSize > 0) {
        byteLen = frameLen * frameSize;
    }
    if (byteLen != AudioSystem.NOT_SPECIFIED) {
        // if the stream length is known, it can be efficiently loaded into memory
        readStream(as, byteLen);
    } else {
        // otherwise we use a ByteArrayOutputStream to load it into memory
        readStream(as);
    }

    // if everything went fine, we have now the audio data in
    // loadedAudio, and the byte length in loadedAudioByteLength
    return true;
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Tests the {@code AudioInputStream} fetched from the fake header.
 * <p>
 * Note that the frameLength is stored as long which means
 * that {@code AudioInputStream} must store all possible data from au file.
 */
private static void testAIS(final byte[] type, final int rate,
                            final int channel, final long size)
        throws Exception {
    final byte[] header = createHeader(type, rate, channel, size);
    final ByteArrayInputStream fake = new ByteArrayInputStream(header);
    final AudioInputStream ais = AudioSystem.getAudioInputStream(fake);
    final AudioFormat format = ais.getFormat();
    final long frameLength = size / format.getFrameSize();
    if (size != MAX_UNSIGNED_INT) {
        if (frameLength != ais.getFrameLength()) {
            System.err.println("Expected: " + frameLength);
            System.err.println("Actual: " + ais.getFrameLength());
            throw new RuntimeException();
        }
    } else {
        if (ais.getFrameLength() != AudioSystem.NOT_SPECIFIED) {
            System.err.println("Expected: " + AudioSystem.NOT_SPECIFIED);
            System.err.println("Actual: " + ais.getFrameLength());
            throw new RuntimeException();
        }
    }
    if (ais.available() < 0) {
        System.err.println("available should be >=0: " + ais.available());
        throw new RuntimeException();
    }
    validateFormat(type[1], rate, channel, format);
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
public static void main(String args[]) throws Exception {
    boolean res = true;
    try {
        AudioInputStream ais = new AudioInputStream(
                new ByteArrayInputStream(new byte[2000]),
                new AudioFormat(8000.0f, 8, 1, false, false), 2000); //
        AudioFormat format = ais.getFormat();
        DataLine.Info info = new DataLine.Info(Clip.class, format,
                                               ((int) ais.getFrameLength()
                                                        * format
                                                       .getFrameSize()));
        Clip clip = (Clip) AudioSystem.getLine(info);
        clip.open();
        FloatControl rateControl = (FloatControl) clip.getControl(
                FloatControl.Type.SAMPLE_RATE);
        int c = 0;
        while (c++ < 10) {
            clip.stop();
            clip.setFramePosition(0);
            clip.start();
            for (float frq = 22000; frq < 44100; frq = frq + 100) {
                try {
                    Thread.currentThread().sleep(20);
                } catch (Exception e) {
                    break;
                }
                rateControl.setValue(frq);
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
        res = ex.getMessage().indexOf(
                "This method should not have been invoked!") < 0;
    }
    if (res) {
        System.out.println("Test passed");
    } else {
        System.out.println("Test failed");
        throw new Exception("Test failed");
    }
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
public Soundbank getSoundbank(AudioInputStream ais)
        throws InvalidMidiDataException, IOException {
    try {
        byte[] buffer;
        if (ais.getFrameLength() == -1) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            byte[] buff = new byte[1024
                    - (1024 % ais.getFormat().getFrameSize())];
            int ret;
            while ((ret = ais.read(buff)) != -1) {
                baos.write(buff, 0, ret);
            }
            ais.close();
            buffer = baos.toByteArray();
        } else {
            buffer = new byte[(int) (ais.getFrameLength()
                                * ais.getFormat().getFrameSize())];
            new DataInputStream(ais).readFully(buffer);
        }
        ModelByteBufferWavetable osc = new ModelByteBufferWavetable(
                new ModelByteBuffer(buffer), ais.getFormat(), -4800);
        ModelPerformer performer = new ModelPerformer();
        performer.getOscillators().add(osc);

        SimpleSoundbank sbk = new SimpleSoundbank();
        SimpleInstrument ins = new SimpleInstrument();
        ins.add(performer);
        sbk.addInstrument(ins);
        return sbk;
    } catch (Exception e) {
        return null;
    }
}
 

import javax.sound.sampled.AudioInputStream; //导入方法依赖的package包/类
/**
 * Converts a wave file to a FLAC file(in order to POST the data to Google and retrieve a response) <br>
 * Sample Rate is 8000 by default
 *
 * @param inputFile  Input wave file
 * @param outputFile Output FLAC file
 */
public void convertWaveToFlac(File inputFile, File outputFile) {


    StreamConfiguration streamConfiguration = new StreamConfiguration();
    streamConfiguration.setSampleRate(8000);
    streamConfiguration.setBitsPerSample(16);
    streamConfiguration.setChannelCount(1);


    try {
        AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(inputFile);
        AudioFormat format = audioInputStream.getFormat();

        int frameSize = format.getFrameSize();

        FLACEncoder flacEncoder = new FLACEncoder();
        FLACFileOutputStream flacOutputStream = new FLACFileOutputStream(outputFile);

        flacEncoder.setStreamConfiguration(streamConfiguration);
        flacEncoder.setOutputStream(flacOutputStream);

        flacEncoder.openFLACStream();

        int frameLength = (int) audioInputStream.getFrameLength();
        if(frameLength <= AudioSystem.NOT_SPECIFIED){
        	frameLength = 16384;//Arbitrary file size
        }
        int[] sampleData = new int[frameLength];
        byte[] samplesIn = new byte[frameSize];

        int i = 0;

        while (audioInputStream.read(samplesIn, 0, frameSize) != -1) {
            if (frameSize != 1) {
                ByteBuffer bb = ByteBuffer.wrap(samplesIn);
                bb.order(ByteOrder.LITTLE_ENDIAN);
                short shortVal = bb.getShort();
                sampleData[i] = shortVal;
            } else {
                sampleData[i] = samplesIn[0];
            }

            i++;
        }

        sampleData = truncateNullData(sampleData, i);
        
        flacEncoder.addSamples(sampleData, i);
        flacEncoder.encodeSamples(i, false);
        flacEncoder.encodeSamples(flacEncoder.samplesAvailableToEncode(), true);

        audioInputStream.close();
        flacOutputStream.close();

    } catch (Exception ex) {
        ex.printStackTrace();
    }
}