1 /*
2 * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
33 import static javax.sound.sampled.AudioFormat.Encoding;
34
35 /**
36 * A format conversion provider provides format conversion services from one or
37 * more input formats to one or more output formats. Converters include codecs,
38 * which encode and/or decode audio data, as well as transcoders, etc. Format
39 * converters provide methods for determining what conversions are supported and
40 * for obtaining an audio stream from which converted data can be read.
41 * <p>
42 * The source format represents the format of the incoming audio data, which
43 * will be converted.
44 * <p>
45 * The target format represents the format of the processed, converted audio
46 * data. This is the format of the data that can be read from the stream
47 * returned by one of the {@code getAudioInputStream} methods.
48 *
49 * @author Kara Kytle
50 * @since 1.3
51 */
52 public abstract class FormatConversionProvider {
53
54 /**
55 * Obtains the set of source format encodings from which format conversion
56 * services are provided by this provider.
57 *
58 * @return array of source format encodings. If for some reason provider
59 * does not provide any conversion services, an array of length 0 is
60 * returned.
61 */
62 public abstract Encoding[] getSourceEncodings();
63
64 /**
65 * Obtains the set of target format encodings to which format conversion
66 * services are provided by this provider.
67 *
68 * @return array of target format encodings. If for some reason provider
69 * does not provide any conversion services, an array of length 0 is
70 * returned.
71 */
72 public abstract Encoding[] getTargetEncodings();
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1 /*
2 * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
33 import static javax.sound.sampled.AudioFormat.Encoding;
34
35 /**
36 * A format conversion provider provides format conversion services from one or
37 * more input formats to one or more output formats. Converters include codecs,
38 * which encode and/or decode audio data, as well as transcoders, etc. Format
39 * converters provide methods for determining what conversions are supported and
40 * for obtaining an audio stream from which converted data can be read.
41 * <p>
42 * The source format represents the format of the incoming audio data, which
43 * will be converted.
44 * <p>
45 * The target format represents the format of the processed, converted audio
46 * data. This is the format of the data that can be read from the stream
47 * returned by one of the {@code getAudioInputStream} methods.
48 *
49 * @author Kara Kytle
50 * @since 1.3
51 */
52 public abstract class FormatConversionProvider {
53
54 /**
55 * Constructs a {@code FormatConversionProvider}.
56 */
57 protected FormatConversionProvider() {}
58
59 /**
60 * Obtains the set of source format encodings from which format conversion
61 * services are provided by this provider.
62 *
63 * @return array of source format encodings. If for some reason provider
64 * does not provide any conversion services, an array of length 0 is
65 * returned.
66 */
67 public abstract Encoding[] getSourceEncodings();
68
69 /**
70 * Obtains the set of target format encodings to which format conversion
71 * services are provided by this provider.
72 *
73 * @return array of target format encodings. If for some reason provider
74 * does not provide any conversion services, an array of length 0 is
75 * returned.
76 */
77 public abstract Encoding[] getTargetEncodings();
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