| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.media.sound; |
| |
| import javax.sound.sampled.AudioFileFormat; |
| import javax.sound.sampled.AudioFormat; |
| import javax.sound.sampled.AudioSystem; |
| |
| /** |
| * An instance of the {@code StandardFileFormat} describes the file's length in |
| * bytes and the length in sample frames as longs. This will provide an |
| * additional precision unlike the {@code AudioFileFormat}. |
| */ |
| class StandardFileFormat extends AudioFileFormat { |
| |
| /** |
| * File length in bytes stored as long. |
| */ |
| private final long byteLength; |
| |
| /** |
| * Audio data length in sample frames stored as long. |
| */ |
| private final long frameLength; |
| |
| /** |
| * Constructs {@code StandardFileFormat} object. |
| * |
| * @param type the type of the audio file |
| * @param format the format of the audio data contained in the file |
| * @param frameLength the audio data length in sample frames, or |
| * {@code AudioSystem.NOT_SPECIFIED} |
| */ |
| StandardFileFormat(final Type type, final AudioFormat format, |
| final long frameLength) { |
| this(type, AudioSystem.NOT_SPECIFIED, format, frameLength); |
| } |
| |
| /** |
| * Constructs {@code StandardFileFormat} object. |
| * |
| * @param type the type of the audio file |
| * @param byteLength the length of the file in bytes, or |
| * {@code AudioSystem.NOT_SPECIFIED} |
| * @param format the format of the audio data contained in the file |
| * @param frameLength the audio data length in sample frames, or |
| * {@code AudioSystem.NOT_SPECIFIED} |
| */ |
| StandardFileFormat(final Type type, final long byteLength, |
| final AudioFormat format, final long frameLength) { |
| super(type, clip(byteLength), format, clip(frameLength)); |
| this.byteLength = byteLength; |
| this.frameLength = frameLength; |
| } |
| |
| /** |
| * Replaces the passed value to {@code AudioSystem.NOT_SPECIFIED} if the |
| * value is greater than {@code Integer.MAX_VALUE}. |
| * |
| * @param value which should be clipped |
| * @return the clipped value |
| */ |
| private static int clip(final long value) { |
| if (value > Integer.MAX_VALUE) { |
| return AudioSystem.NOT_SPECIFIED; |
| } |
| return (int) value; |
| } |
| |
| /** |
| * Obtains the length of the audio data contained in the file, expressed in |
| * sample frames. The long precision is used. |
| * |
| * @return the number of sample frames of audio data in the file |
| * @see AudioSystem#NOT_SPECIFIED |
| */ |
| public final long getLongFrameLength() { |
| return frameLength; |
| } |
| |
| /** |
| * Obtains the size in bytes of the entire audio file (not just its audio |
| * data). The long precision is used. |
| * |
| * @return the audio file length in bytes |
| * @see AudioSystem#NOT_SPECIFIED |
| */ |
| public final long getLongByteLength() { |
| return byteLength; |
| } |
| } |