Examples with AudioInputStream javax.sound.sampled.AudioInputStream used on opensource projects

Example 26 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project Minim by ddf.

the class JSBufferedSampleRecorder method save.

/**
   * Saves the audio in the internal buffer to a file using the current settings for 
   * file type and file name.
   */
public AudioRecordingStream save() {
    if (isRecording()) {
        system.error("You must stop recording before you can write to a file.");
    } else {
        int channels = format.getChannels();
        int length = left.capacity();
        int totalSamples = (buffers.size() / channels) * length;
        FloatSampleBuffer fsb = new FloatSampleBuffer(channels, totalSamples, format.getSampleRate());
        if (channels == 1) {
            for (int i = 0; i < buffers.size(); i++) {
                int offset = i * length;
                FloatBuffer fb = (FloatBuffer) buffers.get(i);
                fb.rewind();
                // copy all the floats in fb to the first channel
                // of fsb, starting at the index offset, and copy
                // the whole FloatBuffer over.
                fb.get(fsb.getChannel(0), offset, length);
            }
        } else {
            for (int i = 0; i < buffers.size(); i += 2) {
                int offset = (i / 2) * length;
                FloatBuffer fbL = (FloatBuffer) buffers.get(i);
                FloatBuffer fbR = (FloatBuffer) buffers.get(i + 1);
                fbL.rewind();
                fbL.get(fsb.getChannel(0), offset, length);
                fbR.rewind();
                fbR.get(fsb.getChannel(1), offset, length);
            }
        }
        int sampleFrames = fsb.getByteArrayBufferSize(format) / format.getFrameSize();
        ByteArrayInputStream bais = new ByteArrayInputStream(fsb.convertToByteArray(format));
        AudioInputStream ais = new AudioInputStream(bais, format, sampleFrames);
        if (AudioSystem.isFileTypeSupported(type, ais)) {
            File out = new File(name);
            try {
                AudioSystem.write(ais, type, out);
            } catch (IOException e) {
                system.error("AudioRecorder.save: Error attempting to save buffer to " + name + "\n" + e.getMessage());
            }
            if (out.length() == 0) {
                system.error("AudioRecorder.save: Error attempting to save buffer to " + name + ", the output file is empty.");
            }
        } else {
            system.error("AudioRecorder.save: Can't write " + type.toString() + " using format " + format.toString() + ".");
        }
    }
    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;
}

Example 27 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project Minim by ddf.

the class MpegAudioFileReader method getAudioInputStream.

/**
	 * Returns AudioInputStream from url.
	 */
public AudioInputStream getAudioInputStream(URL url) throws UnsupportedAudioFileException, IOException {
    system.debug("MpegAudioFileReader.getAudioInputStream(URL): begin");
    long lFileLengthInBytes = AudioSystem.NOT_SPECIFIED;
    URLConnection conn = url.openConnection();
    // Tell shoucast server (if any) that SPI support shoutcast stream.
    boolean isShout = false;
    int toRead = 4;
    byte[] head = new byte[toRead];
    conn.setRequestProperty("Icy-Metadata", "1");
    BufferedInputStream bInputStream = new BufferedInputStream(conn.getInputStream());
    bInputStream.mark(toRead);
    int read = bInputStream.read(head, 0, toRead);
    if ((read > 2) && (((head[0] == 'I') | (head[0] == 'i')) && ((head[1] == 'C') | (head[1] == 'c')) && ((head[2] == 'Y') | (head[2] == 'y'))))
        isShout = true;
    bInputStream.reset();
    InputStream inputStream = null;
    // Is is a shoutcast server ?
    if (isShout == true) {
        // Yes
        IcyInputStream icyStream = new IcyInputStream(bInputStream);
        icyStream.addTagParseListener(IcyListener.getInstance());
        inputStream = icyStream;
    } else {
        // No, is Icecast 2 ?
        String metaint = conn.getHeaderField("icy-metaint");
        if (metaint != null) {
            // Yes, it might be icecast 2 mp3 stream.
            IcyInputStream icyStream = new IcyInputStream(bInputStream, metaint);
            icyStream.addTagParseListener(IcyListener.getInstance());
            inputStream = icyStream;
        } else {
            // No
            inputStream = bInputStream;
        }
    }
    AudioInputStream audioInputStream = null;
    try {
        audioInputStream = getAudioInputStream(inputStream, lFileLengthInBytes);
    } catch (UnsupportedAudioFileException e) {
        inputStream.close();
        throw e;
    } catch (IOException e) {
        inputStream.close();
        throw e;
    }
    system.debug("MpegAudioFileReader.getAudioInputStream(URL): end");
    return audioInputStream;
}

Example 28 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project Minim by ddf.

the class JSMinim method getAudioInputStream.

/**
   * 
   * @param filename the 
   * @param is
   * @return
   */
AudioInputStream getAudioInputStream(String filename) {
    AudioInputStream ais = null;
    BufferedInputStream bis = null;
    if (filename.startsWith("http")) {
        try {
            ais = getAudioInputStream(new URL(filename));
        } catch (MalformedURLException e) {
            error("Bad URL: " + e.getMessage());
        } catch (UnsupportedAudioFileException e) {
            error("URL is in an unsupported audio file format: " + e.getMessage());
        } catch (IOException e) {
            Minim.error("Error reading the URL: " + e.getMessage());
        }
    } else {
        try {
            InputStream is = (InputStream) createInput.invoke(fileLoader, filename);
            if (is != null) {
                debug("Base input stream is: " + is.toString());
                bis = new BufferedInputStream(is);
                ais = getAudioInputStream(bis);
                if (ais != null) {
                    // don't mark it like this because it means the entire
                    // file will be loaded into memory as it plays. this 
                    // will cause out-of-memory problems with very large files.
                    // ais.mark((int)ais.available());
                    debug("Acquired AudioInputStream.\n" + "It is " + ais.getFrameLength() + " frames long.\n" + "Marking support: " + ais.markSupported());
                }
            } else {
                throw new FileNotFoundException(filename);
            }
        } catch (Exception e) {
            error(e.toString());
        }
    }
    return ais;
}

Example 29 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project Minim by ddf.

the class JSMinim method getAudioSample.

public AudioSample getAudioSample(String filename, int bufferSize) {
    AudioInputStream ais = getAudioInputStream(filename);
    if (ais != null) {
        AudioMetaData meta = null;
        AudioFormat format = ais.getFormat();
        FloatSampleBuffer samples = null;
        if (format instanceof MpegAudioFormat) {
            AudioFormat baseFormat = format;
            format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, baseFormat.getSampleRate(), 16, baseFormat.getChannels(), baseFormat.getChannels() * 2, baseFormat.getSampleRate(), false);
            // converts the stream to PCM audio from mp3 audio
            ais = getAudioInputStream(format, ais);
            // get a map of properties so we can find out how long it is
            Map<String, Object> props = getID3Tags(filename);
            // there is a property called mp3.length.bytes, but that is
            // the length in bytes of the mp3 file, which will of course
            // be much shorter than the decoded version. so we use the
            // duration of the file to figure out how many bytes the
            // decoded file will be.
            long dur = ((Long) props.get("duration")).longValue();
            int toRead = (int) AudioUtils.millis2Bytes(dur / 1000, format);
            samples = loadFloatAudio(ais, toRead);
            meta = new MP3MetaData(filename, dur / 1000, props);
        } else {
            samples = loadFloatAudio(ais, (int) ais.getFrameLength() * format.getFrameSize());
            long length = AudioUtils.frames2Millis(samples.getSampleCount(), format);
            meta = new BasicMetaData(filename, length, samples.getSampleCount());
        }
        AudioOut out = getAudioOutput(format.getChannels(), bufferSize, format.getSampleRate(), format.getSampleSizeInBits());
        if (out != null) {
            SampleSignal ssig = new SampleSignal(samples);
            out.setAudioSignal(ssig);
            return new JSAudioSample(meta, ssig, out);
        } else {
            error("Couldn't acquire an output.");
        }
    }
    return null;
}

Example 30 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project Minim by ddf.

the class MpegAudioFileReaderWorkaround method getAudioInputStream.

/**
	 * Returns AudioInputStream from url and userAgent
	 */
public AudioInputStream getAudioInputStream(URL url, String userAgent) throws UnsupportedAudioFileException, IOException {
    system.debug("MpegAudioFileReaderWorkaround.getAudioInputStream(" + url.toString() + ", " + userAgent + "): begin");
    long lFileLengthInBytes = AudioSystem.NOT_SPECIFIED;
    URLConnection conn = url.openConnection();
    // Tell shoucast server (if any) that SPI support shoutcast stream.
    boolean isShout = false;
    int toRead = 4;
    byte[] head = new byte[toRead];
    if (userAgent != null)
        conn.setRequestProperty("User-Agent", userAgent);
    conn.setRequestProperty("Accept", "*/*");
    conn.setRequestProperty("Icy-Metadata", "1");
    conn.setRequestProperty("Connection", "close");
    system.debug("Base input stream is: " + conn.getInputStream().toString());
    BufferedInputStream bInputStream = new BufferedInputStream(conn.getInputStream());
    bInputStream.mark(toRead);
    int read = bInputStream.read(head, 0, toRead);
    if ((read > 2) && (((head[0] == 'I') | (head[0] == 'i')) && ((head[1] == 'C') | (head[1] == 'c')) && ((head[2] == 'Y') | (head[2] == 'y')))) {
        isShout = true;
    }
    bInputStream.reset();
    InputStream inputStream = null;
    // Is it a shoutcast server ?
    if (isShout == true) {
        // Yes
        system.debug("URL is a shoutcast server.");
        IcyInputStream icyStream = new IcyInputStream(bInputStream);
        icyStream.addTagParseListener(IcyListener.getInstance());
        inputStream = icyStream;
    } else {
        // No, is it Icecast 2 ?
        String metaint = conn.getHeaderField("icy-metaint");
        if (metaint != null) {
            // Yes, it might be icecast 2 mp3 stream.
            system.debug("URL is probably an icecast 2 mp3 stream");
            IcyInputStream icyStream = new IcyInputStream(bInputStream, metaint);
            icyStream.addTagParseListener(IcyListener.getInstance());
            inputStream = icyStream;
        } else {
            system.debug("URL is not shoutcast or icecast 2.");
            inputStream = bInputStream;
        }
    }
    AudioInputStream audioInputStream = null;
    try {
        system.debug("Attempting to get audioInputStream.");
        audioInputStream = getAudioInputStream(inputStream, lFileLengthInBytes);
    } catch (UnsupportedAudioFileException e) {
        inputStream.close();
        throw e;
    } catch (IOException e) {
        inputStream.close();
        throw e;
    }
    system.debug("MpegAudioFileReaderWorkaround.getAudioInputStream(URL,String): end");
    return audioInputStream;
}