Databases
StackOverflow2013
Postsdbo
PO
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    text
    copied!<p>mp3spi library as such does not consider m3u playlist file as a supported file.</p> <p>Try using the real stream url used inside the m3u file. ie the url directly to the mp3 file or stream.</p> <p>Check the function below. Its straight out of MpegAudioFileReader.java, mp3spi library uses to identify the format of the data stream you presented using URL. It doesn't recognize an m3u file. You can check the source if you want from <a href="http://www.javazoom.net/mp3spi/sources.html" rel="nofollow">http://www.javazoom.net/mp3spi/sources.html</a>.</p> <pre><code> public AudioFileFormat getAudioFileFormat(InputStream inputStream, long mediaLength) throws UnsupportedAudioFileException, IOException { if (TDebug.TraceAudioFileReader) TDebug.out("&gt;MpegAudioFileReader.getAudioFileFormat(InputStream inputStream, long mediaLength): begin"); HashMap aff_properties = new HashMap(); HashMap af_properties = new HashMap(); int mLength = (int) mediaLength; int size = inputStream.available(); PushbackInputStream pis = new PushbackInputStream(inputStream, MARK_LIMIT); byte head[] = new byte[22]; pis.read(head); if (TDebug.TraceAudioFileReader) { TDebug.out("InputStream : " + inputStream + " =&gt;" + new String(head)); } // Check for WAV, AU, and AIFF, Ogg Vorbis, Flac, MAC file formats. // Next check for Shoutcast (supported) and OGG (unsupported) streams. if ((head[0] == 'R') &amp;&amp; (head[1] == 'I') &amp;&amp; (head[2] == 'F') &amp;&amp; (head[3] == 'F') &amp;&amp; (head[8] == 'W') &amp;&amp; (head[9] == 'A') &amp;&amp; (head[10] == 'V') &amp;&amp; (head[11] == 'E')) { if (TDebug.TraceAudioFileReader) TDebug.out("RIFF/WAV stream found"); int isPCM = ((head[21]&lt;&lt;8)&amp;0x0000FF00) | ((head[20])&amp;0x00000FF); if (weak == null) { if (isPCM == 1) throw new UnsupportedAudioFileException("WAV PCM stream found"); } } else if ((head[0] == '.') &amp;&amp; (head[1] == 's') &amp;&amp; (head[2] == 'n') &amp;&amp; (head[3] == 'd')) { if (TDebug.TraceAudioFileReader) TDebug.out("AU stream found"); if (weak == null) throw new UnsupportedAudioFileException("AU stream found"); } else if ((head[0] == 'F') &amp;&amp; (head[1] == 'O') &amp;&amp; (head[2] == 'R') &amp;&amp; (head[3] == 'M') &amp;&amp; (head[8] == 'A') &amp;&amp; (head[9] == 'I') &amp;&amp; (head[10] == 'F') &amp;&amp; (head[11] == 'F')) { if (TDebug.TraceAudioFileReader) TDebug.out("AIFF stream found"); if (weak == null) throw new UnsupportedAudioFileException("AIFF stream found"); } else if (((head[0] == 'M') | (head[0] == 'm')) &amp;&amp; ((head[1] == 'A') | (head[1] == 'a')) &amp;&amp; ((head[2] == 'C') | (head[2] == 'c'))) { if (TDebug.TraceAudioFileReader) TDebug.out("APE stream found"); if (weak == null) throw new UnsupportedAudioFileException("APE stream found"); } else if (((head[0] == 'F') | (head[0] == 'f')) &amp;&amp; ((head[1] == 'L') | (head[1] == 'l')) &amp;&amp; ((head[2] == 'A') | (head[2] == 'a')) &amp;&amp; ((head[3] == 'C') | (head[3] == 'c'))) { if (TDebug.TraceAudioFileReader) TDebug.out("FLAC stream found"); if (weak == null) throw new UnsupportedAudioFileException("FLAC stream found"); } // Shoutcast stream ? else if (((head[0] == 'I') | (head[0] == 'i')) &amp;&amp; ((head[1] == 'C') | (head[1] == 'c')) &amp;&amp; ((head[2] == 'Y') | (head[2] == 'y'))) { pis.unread(head); // Load shoutcast meta data. loadShoutcastInfo(pis, aff_properties); } // Ogg stream ? else if (((head[0] == 'O') | (head[0] == 'o')) &amp;&amp; ((head[1] == 'G') | (head[1] == 'g')) &amp;&amp; ((head[2] == 'G') | (head[2] == 'g'))) { if (TDebug.TraceAudioFileReader) TDebug.out("Ogg stream found"); if (weak == null) throw new UnsupportedAudioFileException("Ogg stream found"); } // No, so pushback. else { pis.unread(head); } // MPEG header info. int nVersion = AudioSystem.NOT_SPECIFIED; int nLayer = AudioSystem.NOT_SPECIFIED; int nSFIndex = AudioSystem.NOT_SPECIFIED; int nMode = AudioSystem.NOT_SPECIFIED; int FrameSize = AudioSystem.NOT_SPECIFIED; int nFrameSize = AudioSystem.NOT_SPECIFIED; int nFrequency = AudioSystem.NOT_SPECIFIED; int nTotalFrames = AudioSystem.NOT_SPECIFIED; float FrameRate = AudioSystem.NOT_SPECIFIED; int BitRate = AudioSystem.NOT_SPECIFIED; int nChannels = AudioSystem.NOT_SPECIFIED; int nHeader = AudioSystem.NOT_SPECIFIED; int nTotalMS = AudioSystem.NOT_SPECIFIED; boolean nVBR = false; AudioFormat.Encoding encoding = null; try { Bitstream m_bitstream = new Bitstream(pis); aff_properties.put("mp3.header.pos", new Integer(m_bitstream.header_pos())); Header m_header = m_bitstream.readFrame(); // nVersion = 0 =&gt; MPEG2-LSF (Including MPEG2.5), nVersion = 1 =&gt; MPEG1 nVersion = m_header.version(); if (nVersion == 2) aff_properties.put("mp3.version.mpeg", Float.toString(2.5f)); else aff_properties.put("mp3.version.mpeg", Integer.toString(2 - nVersion)); // nLayer = 1,2,3 nLayer = m_header.layer(); aff_properties.put("mp3.version.layer", Integer.toString(nLayer)); nSFIndex = m_header.sample_frequency(); nMode = m_header.mode(); aff_properties.put("mp3.mode", new Integer(nMode)); nChannels = nMode == 3 ? 1 : 2; aff_properties.put("mp3.channels", new Integer(nChannels)); nVBR = m_header.vbr(); af_properties.put("vbr", new Boolean(nVBR)); aff_properties.put("mp3.vbr", new Boolean(nVBR)); aff_properties.put("mp3.vbr.scale", new Integer(m_header.vbr_scale())); FrameSize = m_header.calculate_framesize(); aff_properties.put("mp3.framesize.bytes", new Integer(FrameSize)); if (FrameSize &lt; 0) throw new UnsupportedAudioFileException("Invalid FrameSize : " + FrameSize); nFrequency = m_header.frequency(); aff_properties.put("mp3.frequency.hz", new Integer(nFrequency)); FrameRate = (float) ((1.0 / (m_header.ms_per_frame())) * 1000.0); aff_properties.put("mp3.framerate.fps", new Float(FrameRate)); if (FrameRate &lt; 0) throw new UnsupportedAudioFileException("Invalid FrameRate : " + FrameRate); if (mLength != AudioSystem.NOT_SPECIFIED) { aff_properties.put("mp3.length.bytes", new Integer(mLength)); nTotalFrames = m_header.max_number_of_frames(mLength); aff_properties.put("mp3.length.frames", new Integer(nTotalFrames)); } BitRate = m_header.bitrate(); af_properties.put("bitrate", new Integer(BitRate)); aff_properties.put("mp3.bitrate.nominal.bps", new Integer(BitRate)); nHeader = m_header.getSyncHeader(); encoding = sm_aEncodings[nVersion][nLayer - 1]; aff_properties.put("mp3.version.encoding", encoding.toString()); if (mLength != AudioSystem.NOT_SPECIFIED) { nTotalMS = Math.round(m_header.total_ms(mLength)); aff_properties.put("duration", new Long((long) nTotalMS * 1000L)); } aff_properties.put("mp3.copyright", new Boolean(m_header.copyright())); aff_properties.put("mp3.original", new Boolean(m_header.original())); aff_properties.put("mp3.crc", new Boolean(m_header.checksums())); aff_properties.put("mp3.padding", new Boolean(m_header.padding())); InputStream id3v2 = m_bitstream.getRawID3v2(); if (id3v2 != null) { aff_properties.put("mp3.id3tag.v2", id3v2); parseID3v2Frames(id3v2, aff_properties); } if (TDebug.TraceAudioFileReader) TDebug.out(m_header.toString()); } catch (Exception e) { if (TDebug.TraceAudioFileReader) TDebug.out("not a MPEG stream:" + e.getMessage()); throw new UnsupportedAudioFileException("not a MPEG stream:" + e.getMessage()); } // Deeper checks ? int cVersion = (nHeader &gt;&gt; 19) &amp; 0x3; if (cVersion == 1) { if (TDebug.TraceAudioFileReader) TDebug.out("not a MPEG stream: wrong version"); throw new UnsupportedAudioFileException("not a MPEG stream: wrong version"); } int cSFIndex = (nHeader &gt;&gt; 10) &amp; 0x3; if (cSFIndex == 3) { if (TDebug.TraceAudioFileReader) TDebug.out("not a MPEG stream: wrong sampling rate"); throw new UnsupportedAudioFileException("not a MPEG stream: wrong sampling rate"); } // Look up for ID3v1 tag if ((size == mediaLength) &amp;&amp; (mediaLength != AudioSystem.NOT_SPECIFIED)) { FileInputStream fis = (FileInputStream) inputStream; byte[] id3v1 = new byte[128]; long bytesSkipped = fis.skip(inputStream.available() - id3v1.length); int read = fis.read(id3v1, 0, id3v1.length); if ((id3v1[0] == 'T') &amp;&amp; (id3v1[1] == 'A') &amp;&amp; (id3v1[2] == 'G')) { parseID3v1Frames(id3v1, aff_properties); } } AudioFormat format = new MpegAudioFormat(encoding, (float) nFrequency, AudioSystem.NOT_SPECIFIED // SampleSizeInBits - The size of a sample , nChannels // Channels - The number of channels , -1 // The number of bytes in each frame , FrameRate // FrameRate - The number of frames played or recorded per second , true, af_properties); return new MpegAudioFileFormat(MpegFileFormatType.MP3, format, nTotalFrames, mLength, aff_properties); } </code></pre>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload