diff options
Diffstat (limited to 'gnu/javax/sound/sampled/AU/AUReader.java')
| -rw-r--r-- | gnu/javax/sound/sampled/AU/AUReader.java | 99 |
1 files changed, 49 insertions, 50 deletions
diff --git a/gnu/javax/sound/sampled/AU/AUReader.java b/gnu/javax/sound/sampled/AU/AUReader.java index ed5852e6c..fe0df6eb1 100644 --- a/gnu/javax/sound/sampled/AU/AUReader.java +++ b/gnu/javax/sound/sampled/AU/AUReader.java @@ -55,11 +55,11 @@ public class AUReader extends AudioFileReader { private static class AUHeader { - // Magic number identifying the file. '.snd' + // Magic number identifying the file. '.snd' private static final int MAGIC = 0x2e736e64; - + public static final int SIZE = 24; // size of the header - + // Encoding types public static final int ULAW = 1; // 8-bit u-law public static final int PCM8 = 2; // 8-bit PCM @@ -68,10 +68,10 @@ public class AUReader extends AudioFileReader public static final int PCM32 = 5; // 32-bit PCM public static final int IEEE32 = 6; // 32-bit IEEE f.p. public static final int IEEE64 = 7; // 64-bit IEEE f.p. - public static final int G721 = 23; - public static final int G722 = 24; - public static final int G723 = 25; - public static final int G723_5BIT = 26; + public static final int G721 = 23; + public static final int G722 = 24; + public static final int G723 = 25; + public static final int G723_5BIT = 26; public static final int ALAW = 27; // 8-bit a-law // Header data. @@ -90,56 +90,56 @@ public class AUReader extends AudioFileReader ByteBuffer buf = ByteBuffer.wrap(hdr); if( buf.getInt() != MAGIC ) - throw new UnsupportedAudioFileException("Not an AU format audio file."); - headerSize = buf.getInt(); - fileSize = buf.getInt(); - encoding = buf.getInt(); + throw new UnsupportedAudioFileException("Not an AU format audio file."); + headerSize = buf.getInt(); + fileSize = buf.getInt(); + encoding = buf.getInt(); sampleRate = buf.getInt(); - channels = buf.getInt(); + channels = buf.getInt(); switch(encoding) - { - case ULAW: - case PCM8: - case ALAW: - sampleSizeInBits = 8; - break; - case PCM16: - sampleSizeInBits = 16; - break; - case PCM24: - sampleSizeInBits = 24; - break; - case PCM32: - sampleSizeInBits = 32; - break; - default: // other types exist but are not supported. Yet. - throw new UnsupportedAudioFileException("Unsupported encoding."); - } + { + case ULAW: + case PCM8: + case ALAW: + sampleSizeInBits = 8; + break; + case PCM16: + sampleSizeInBits = 16; + break; + case PCM24: + sampleSizeInBits = 24; + break; + case PCM32: + sampleSizeInBits = 32; + break; + default: // other types exist but are not supported. Yet. + throw new UnsupportedAudioFileException("Unsupported encoding."); + } } public AudioFormat getAudioFormat() { AudioFormat.Encoding encType = AudioFormat.Encoding.PCM_SIGNED; if(encoding == 1) - encType = AudioFormat.Encoding.ULAW; + encType = AudioFormat.Encoding.ULAW; if(encoding == 27) - encType = AudioFormat.Encoding.ALAW; - - return new AudioFormat(encType, - (float)sampleRate, - sampleSizeInBits, - channels, - (sampleSizeInBits >> 3) * channels, - (float)sampleRate, - true); + encType = AudioFormat.Encoding.ALAW; + + return new AudioFormat(encType, + (float)sampleRate, + sampleSizeInBits, + channels, + (sampleSizeInBits >> 3) * channels, + (float)sampleRate, + true); } public AudioFileFormat getAudioFileFormat() { - return new AudioFileFormat(new AUFormatType(), - getAudioFormat(), - AudioSystem.NOT_SPECIFIED); + return new AudioFileFormat(new AUFormatType(), + getAudioFormat(), + AudioSystem.NOT_SPECIFIED); } } @@ -160,8 +160,8 @@ public class AUReader extends AudioFileReader public AudioFileFormat getAudioFileFormat(InputStream stream) throws IOException, UnsupportedAudioFileException { - if(!stream.markSupported()) - throw new IOException("Stream must support marking."); + if(!stream.markSupported()) + throw new IOException("Stream must support marking."); stream.mark(25); AUHeader header = new AUHeader(stream); @@ -169,10 +169,10 @@ public class AUReader extends AudioFileReader return header.getAudioFileFormat(); } - + public AudioFileFormat getAudioFileFormat(URL url) throws IOException, UnsupportedAudioFileException - { + { return getAudioFileFormat(new BufferedInputStream(url.openStream())); } @@ -198,8 +198,8 @@ public class AUReader extends AudioFileReader if( header.headerSize > AUHeader.SIZE ) stream.skip(header.headerSize - AUHeader.SIZE); - return new AudioInputStream(stream, header.getAudioFormat(), - AudioSystem.NOT_SPECIFIED); + return new AudioInputStream(stream, header.getAudioFormat(), + AudioSystem.NOT_SPECIFIED); } public AudioInputStream getAudioInputStream(URL url) @@ -208,4 +208,3 @@ public class AUReader extends AudioFileReader return getAudioInputStream(new BufferedInputStream(url.openStream())); } } - |