1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1990-2001 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #include <Audio.h>
28 #include <AudioFile.h>
29 #include <AudioList.h>
30 #include <AudioLib.h>
31
32 // Generic Audio functions
33
34
35 // Open an audio file readonly, and return an AudioList referencing it.
36 AudioError
Audio_OpenInputFile(const char * path,Audio * & ap)37 Audio_OpenInputFile(
38 const char *path, // input filename
39 Audio*& ap) // returned AudioList pointer
40 {
41 AudioFile* inf;
42 AudioList* lp;
43 AudioError err;
44
45 // Open file and decode the header
46 inf = new AudioFile(path, (FileAccess)ReadOnly);
47 if (inf == 0)
48 return (AUDIO_UNIXERROR);
49 err = inf->Open();
50 if (err) {
51 delete inf;
52 return (err);
53 }
54
55 // Create a list object and set it up to reference the file
56 lp = new AudioList;
57 if (lp == 0) {
58 delete inf;
59 return (AUDIO_UNIXERROR);
60 }
61 lp->Insert(inf);
62 ap = lp;
63 return (AUDIO_SUCCESS);
64 }
65
66
67 // Create an output file and copy an input stream to it.
68 // If an error occurs during output, leave a partially written file.
69 AudioError
Audio_WriteOutputFile(const char * path,const AudioHdr & hdr,Audio * input)70 Audio_WriteOutputFile(
71 const char *path, // output filename
72 const AudioHdr& hdr, // output data header
73 Audio* input) // input data stream
74 {
75 AudioFile* outf;
76 AudioError err;
77
78 // Create output file object
79 outf = new AudioFile(path, (FileAccess)WriteOnly);
80 if (outf == 0)
81 return (AUDIO_UNIXERROR);
82
83 // Set audio file header and create file
84 if ((err = outf->SetHeader(hdr)) || (err = outf->Create())) {
85 delete outf;
86 return (err);
87 }
88
89 // Copy data to file
90 err = AudioCopy(input, outf);
91
92 // Close output file and clean up. If error, leave partial file.
93 delete outf;
94 return (err);
95 }
96