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Java Source | 1997-01-27 | 2.3 KB | 83 lines |
- /*
- /*
- * @(#)AudioStream.java 1.10 95/08/22 Arthur van Hoff
- *
- * Copyright (c) 1994, 1995 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
-
- package sun.audio;
-
- import java.io.InputStream;
- import java.io.DataInputStream;
- import java.io.FilterInputStream;
- import java.io.IOException;
-
- /**
- * Convert an InputStream to an AudioStream.
- *
- * @version 1.10, 08/22/95
- */
- public
- class AudioStream extends FilterInputStream {
-
- NativeAudioStream audioIn;
-
- public AudioStream(InputStream in) throws IOException {
- super(in);
- try {
- audioIn = (new NativeAudioStream(in));
- } catch (InvalidAudioFormatException e) {
- // Not a native audio stream -- use a translator (if available).
- // If not, let the exception bubble up.
- audioIn = (new AudioTranslatorStream(in));
- }
- this.in = audioIn;
- }
-
- /**
- * A blocking read.
- */
- public int read(byte buf[], int pos, int len) throws IOException {
- int count = 0;
- while (count < len) {
- int n = super.read(buf, pos + count, len - count);
- if (n < 0) {
- return count;
- }
- count += n;
- Thread.currentThread().yield();
- }
- return count;
- }
-
- /**
- * Get the data.
- */
- public AudioData getData() throws IOException {
- byte buffer[] = new byte[audioIn.getLength()];
- int gotbytes = read(buffer, 0, audioIn.getLength());
- close();
- if (gotbytes != audioIn.getLength()) {
- throw new IOException("audio data read error");
- }
- return new AudioData(buffer);
- }
-
- public int getLength() {
- return audioIn.getLength();
- }
- }
-