| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package javax.sound.sampled; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class AudioFormat { |
| public static class Encoding { |
| |
| public static final Encoding ALAW = new Encoding("ALAW"); //$NON-NLS-1$ |
| |
| public static final Encoding PCM_SIGNED = new Encoding("PCM_SIGNED"); //$NON-NLS-1$ |
| |
| public static final Encoding PCM_UNSIGNED = new Encoding("PCM_UNSIGNED"); //$NON-NLS-1$ |
| |
| public static final Encoding ULAW = new Encoding("ULAW"); //$NON-NLS-1$ |
| |
| private String name; |
| |
| public Encoding(String name) { |
| this.name = name; |
| } |
| |
| @Override |
| public boolean equals(Object another) { |
| if (this == another) { |
| return true; |
| } |
| |
| if (another == null || !(another instanceof Encoding)) { |
| return false; |
| } |
| |
| Encoding obj = (Encoding) another; |
| return name == null ? obj.name == null : name.equals(obj.name); |
| } |
| |
| @Override |
| public final int hashCode() { |
| return name == null ? 0 : name.hashCode(); |
| } |
| |
| @Override |
| public final String toString() { |
| return name; |
| } |
| } |
| |
| protected boolean bigEndian; |
| |
| protected int channels; |
| |
| protected Encoding encoding; |
| |
| protected float frameRate; |
| |
| protected int frameSize; |
| |
| protected float sampleRate; |
| |
| protected int sampleSizeInBits; |
| |
| private HashMap<String, Object> prop; |
| |
| public AudioFormat(AudioFormat.Encoding encoding, |
| float sampleRate, |
| int sampleSizeInBits, |
| int channels, |
| int frameSize, |
| float frameRate, |
| boolean bigEndian) { |
| |
| this.encoding = encoding; |
| this.sampleRate = sampleRate; |
| this.sampleSizeInBits = sampleSizeInBits; |
| this.channels = channels; |
| this.frameSize = frameSize; |
| this.frameRate = frameRate; |
| this.bigEndian = bigEndian; |
| |
| } |
| |
| public AudioFormat(AudioFormat.Encoding encoding, |
| float sampleRate, |
| int sampleSizeInBits, |
| int channels, |
| int frameSize, |
| float frameRate, |
| boolean bigEndian, |
| Map<String,Object> properties) { |
| |
| this.encoding = encoding; |
| this.sampleRate = sampleRate; |
| this.sampleSizeInBits = sampleSizeInBits; |
| this.channels = channels; |
| this.frameSize = frameSize; |
| this.frameRate = frameRate; |
| this.bigEndian = bigEndian; |
| prop = new HashMap<String, Object>(); |
| prop.putAll(properties); |
| |
| } |
| |
| public AudioFormat(float sampleRate, |
| int sampleSizeInBits, |
| int channels, |
| boolean signed, |
| boolean bigEndian) { |
| |
| this.encoding = (signed? Encoding.PCM_SIGNED : Encoding.PCM_UNSIGNED); |
| this.sampleRate = sampleRate; |
| this.sampleSizeInBits = sampleSizeInBits; |
| this.channels = channels; |
| this.frameSize = sampleSizeInBits >> 3; |
| if ((sampleSizeInBits & 0x7) != 0) { |
| this.frameSize++; |
| } |
| this.frameSize *= channels; |
| this.frameRate = sampleRate; |
| this.bigEndian = bigEndian; |
| |
| } |
| |
| public Encoding getEncoding() { |
| return encoding; |
| } |
| |
| public float getSampleRate() { |
| return sampleRate; |
| } |
| |
| public int getSampleSizeInBits() { |
| return sampleSizeInBits; |
| } |
| |
| public int getChannels() { |
| return channels; |
| } |
| |
| public int getFrameSize() { |
| return frameSize; |
| } |
| |
| public float getFrameRate() { |
| return frameRate; |
| } |
| |
| public boolean isBigEndian() { |
| return bigEndian; |
| } |
| |
| public Map<String,Object> properties() { |
| if (prop != null) { |
| return Collections.unmodifiableMap(prop); |
| } else { |
| return Collections.emptyMap(); |
| } |
| } |
| |
| public Object getProperty(String key) { |
| if (prop == null) { |
| return null; |
| } |
| return prop.get(key); |
| } |
| |
| public boolean matches(AudioFormat format) { |
| if (!encoding.equals(format.getEncoding()) || |
| channels != format.getChannels() || |
| sampleSizeInBits != format.getSampleSizeInBits() || |
| frameSize != format.getFrameSize()) { |
| return false; |
| } |
| if (format.getSampleRate() != AudioSystem.NOT_SPECIFIED && |
| sampleRate != format.getSampleRate()) { |
| return false; |
| } |
| |
| if (format.getFrameRate() != AudioSystem.NOT_SPECIFIED && |
| frameRate != format.getFrameRate()) { |
| return false; |
| } |
| |
| if ((sampleSizeInBits > 8) |
| && (bigEndian != format.isBigEndian())) { |
| return false; |
| } |
| return true; |
| |
| } |
| |
| public String toString() { |
| |
| String ch; |
| switch (channels) { |
| case 1: |
| ch = "mono,"; //$NON-NLS-1$ |
| break; |
| case 2: |
| ch = "stereo,"; //$NON-NLS-1$ |
| default: |
| ch = channels + " channels, "; //$NON-NLS-1$ |
| } |
| |
| return encoding + " " + sampleRate + " Hz, " + sampleSizeInBits + " bit, " //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| + ch + frameSize + " bytes/frame, " + frameRate + " frames/second"; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| } |