org.monte.media.quicktime.QuickTimePCMAudioCodec Maven / Gradle / Ivy
/*
* @(#)PCMAudioCodec.java
*
* Copyright (c) 2011 Werner Randelshofer, Goldau, Switzerland.
* All rights reserved.
*
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
*/
package org.monte.media.quicktime;
import org.monte.media.audio.*;
import org.monte.media.Format;
import java.nio.ByteOrder;
import java.util.Arrays;
import java.util.HashSet;
import static org.monte.media.FormatKeys.*;
import static org.monte.media.AudioFormatKeys.*;
/**
* {@code PCMAudioCodec} performs sign conversion, endian conversion and
* quantization conversion of PCM audio data.
*
* Does not perform sampling rate conversion or channel conversion.
*
* @author Werner Randelshofer
* @version $Id: QuickTimePCMAudioCodec.java 299 2013-01-03 07:40:18Z werner $
*/
public class QuickTimePCMAudioCodec extends PCMAudioCodec {
private final static HashSet signedEncodings = new HashSet(
Arrays.asList(new String[]{
ENCODING_PCM_SIGNED, ENCODING_QUICKTIME_TWOS_PCM, ENCODING_QUICKTIME_SOWT_PCM,
ENCODING_QUICKTIME_IN24_PCM, ENCODING_QUICKTIME_IN32_PCM,}));
private final static HashSet unsignedEncodings = new HashSet(
Arrays.asList(new String[]{
ENCODING_PCM_UNSIGNED, ENCODING_QUICKTIME_RAW_PCM}));
public QuickTimePCMAudioCodec() {
super(new Format[]{
new Format(MediaTypeKey, MediaType.AUDIO,//
MimeTypeKey, MIME_JAVA,//
EncodingKey, ENCODING_PCM_SIGNED,
SignedKey, true),//
new Format(MediaTypeKey, MediaType.AUDIO,//
MimeTypeKey, MIME_JAVA,//
EncodingKey, ENCODING_PCM_UNSIGNED,
SignedKey, false),//
//
// 8-bit unsigned has "raw " encoding regardless of endian
new Format(MediaTypeKey, MediaType.AUDIO,//
EncodingKey, ENCODING_QUICKTIME_RAW_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
SignedKey, false, SampleSizeInBitsKey, 8),//
//
// 8-bit signed has "sowt" encoding for little endian
new Format(MediaTypeKey, MediaType.AUDIO, //
EncodingKey, ENCODING_QUICKTIME_SOWT_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.LITTLE_ENDIAN,
SignedKey, true, SampleSizeInBitsKey, 8),//
//
// 8-bit signed has "twos" encoding for big endian
new Format(MediaTypeKey, MediaType.AUDIO, //
EncodingKey, ENCODING_QUICKTIME_TWOS_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.BIG_ENDIAN,
SignedKey, true, SampleSizeInBitsKey, 8),//
// 16-bit, signed, little endian
new Format(MediaTypeKey, MediaType.AUDIO,
EncodingKey, ENCODING_QUICKTIME_SOWT_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.LITTLE_ENDIAN,
SignedKey, true,
SampleSizeInBitsKey, 16),//
//
// 16-bit, signed, big endian
new Format(MediaTypeKey, MediaType.AUDIO, //
EncodingKey, ENCODING_QUICKTIME_TWOS_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.BIG_ENDIAN,
SignedKey, true,
SampleSizeInBitsKey, 16),//
//
new Format(MediaTypeKey, MediaType.AUDIO, //
EncodingKey, ENCODING_QUICKTIME_IN24_PCM,//
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.BIG_ENDIAN,
SignedKey, true, SampleSizeInBitsKey, 24),//
//
new Format(MediaTypeKey, MediaType.AUDIO,//
EncodingKey, ENCODING_QUICKTIME_IN32_PCM,
MimeTypeKey, MIME_QUICKTIME,//
ByteOrderKey, ByteOrder.BIG_ENDIAN,
SignedKey, true, SampleSizeInBitsKey, 32),//
});
name="QuickTime PCM Codec";
}
}