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POJavasound not playing .m4a files through JAAD (an SPI)
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Id
10369221
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2012-04-29T02:27:48.410
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2012-05-07T03:16:28.250
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4
ViewCount
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LastEditorDisplayName
text
Body
I'm trying to play some .m4a files, and I understand that <a href="http://jaadec.sourceforge.net/index.php" rel="nofollow">JAAD</a> only supports decoding AAC, but there are songs that I am able to get the sourceDataLine from, and then when I go to try to play them, I get behavior like this: We read: 1024 bytes. We read: 512 bytes. We read: -1 bytes. When running this: <pre><code>// read from the input bytesRead = audioInputStream.read(tempBuffer, 0, tempBuffer.length); System.out.println("We read: " + bytesRead + " bytes."); </code></pre> until bytesRead == -1 For this particular file, I'm getting the AudioFormat baseformat to be this: MPEG1L1 48000.0 Hz, unknown bits per sample, mono, unknown frame size, 125.0 frames/second. Then the AudioFormat decodedFormat to be this: PCM_SIGNED 48000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian I use these line of code to make the conversion: <pre><code>AudioFormat baseFormat = audioInputStream.getFormat(); AudioFormat decodedFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, baseFormat.getSampleRate(), 16, baseFormat.getChannels(), baseFormat.getChannels() * 2, baseFormat.getSampleRate(), false); </code></pre> Am I doing something wrong here? I don't fully understand that that second line really does, but it's been working just fine for decoding MP3 files using the <a href="http://www.javazoom.net/mp3spi/about.html" rel="nofollow">MP3SPI</a>. I'd really appreciate any guidance here.
Tags
<java><audio><mp4><javasound><m4a>
Title
Javasound not playing .m4a files through JAAD (an SPI)
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