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5e562a1 @timblechmann common: unify sndfile helper functions
timblechmann authored
1 // sndfile helper functions
2 //
3 // Copyright (c) 2002 James McCartney. All rights reserved.
4 // Copyright (C) 2012 Tim Blechmann
5 //
6 // This program is free software; you can redistribute it and/or modify
7 // it under the terms of the GNU General Public License as published by
8 // the Free Software Foundation; either version 2 of the License, or
9 // (at your option) any later version.
10 //
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 //
16 // You should have received a copy of the GNU General Public License
17 // along with this program; see the file COPYING. If not, write to
18 // the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 // Boston, MA 02111-1307, USA.
20
21 #ifndef SC_SNDFILEHELPERS_HPP_INCLUDED
22 #define SC_SNDFILEHELPERS_HPP_INCLUDED
23
24 #include "SC_Errors.h"
25
26 #ifndef NO_LIBSNDFILE
27 #include "sndfile.h"
28 #include "string.h"
b0ba08a @timblechmann common: provide portable wrapper for case-insensitive string comparison
timblechmann authored
29 #include "SC_DirUtils.h"
5e562a1 @timblechmann common: unify sndfile helper functions
timblechmann authored
30
31 static inline int headerFormatFromString(const char *name)
32 {
33 if (!name) return SF_FORMAT_AIFF;
b0ba08a @timblechmann common: provide portable wrapper for case-insensitive string comparison
timblechmann authored
34 if (stringCaseCompare(name, "AIFF")) return SF_FORMAT_AIFF;
35 if (stringCaseCompare(name, "AIFC")) return SF_FORMAT_AIFF;
36 if (stringCaseCompare(name, "RIFF")) return SF_FORMAT_WAV;
37 if (stringCaseCompare(name, "WAVEX")) return SF_FORMAT_WAVEX;
38 if (stringCaseCompare(name, "WAVE")) return SF_FORMAT_WAV;
39 if (stringCaseCompare(name, "WAV" )) return SF_FORMAT_WAV;
40 if (stringCaseCompare(name, "Sun" )) return SF_FORMAT_AU;
41 if (stringCaseCompare(name, "IRCAM")) return SF_FORMAT_IRCAM;
42 if (stringCaseCompare(name, "NeXT")) return SF_FORMAT_AU;
43 if (stringCaseCompare(name, "raw")) return SF_FORMAT_RAW;
44 if (stringCaseCompare(name, "MAT4")) return SF_FORMAT_MAT4;
45 if (stringCaseCompare(name, "MAT5")) return SF_FORMAT_MAT5;
46 if (stringCaseCompare(name, "PAF")) return SF_FORMAT_PAF;
47 if (stringCaseCompare(name, "SVX")) return SF_FORMAT_SVX;
48 if (stringCaseCompare(name, "NIST")) return SF_FORMAT_NIST;
49 if (stringCaseCompare(name, "VOC")) return SF_FORMAT_VOC;
50 if (stringCaseCompare(name, "W64")) return SF_FORMAT_W64;
51 if (stringCaseCompare(name, "PVF")) return SF_FORMAT_PVF;
52 if (stringCaseCompare(name, "XI")) return SF_FORMAT_XI;
53 if (stringCaseCompare(name, "HTK")) return SF_FORMAT_HTK;
54 if (stringCaseCompare(name, "SDS")) return SF_FORMAT_SDS;
55 if (stringCaseCompare(name, "AVR")) return SF_FORMAT_AVR;
56 if (stringCaseCompare(name, "SD2")) return SF_FORMAT_SD2;
57 if (stringCaseCompare(name, "FLAC")) return SF_FORMAT_FLAC;
5e562a1 @timblechmann common: unify sndfile helper functions
timblechmann authored
58 // TODO allow other platforms to know vorbis once libsndfile 1.0.18 is established
59 #if defined(__APPLE__) || defined(_WIN32) || LIBSNDFILE_1018
b0ba08a @timblechmann common: provide portable wrapper for case-insensitive string comparison
timblechmann authored
60 if (stringCaseCompare(name, "vorbis")) return SF_FORMAT_VORBIS;
5e562a1 @timblechmann common: unify sndfile helper functions
timblechmann authored
61 #endif
b0ba08a @timblechmann common: provide portable wrapper for case-insensitive string comparison
timblechmann authored
62 if (stringCaseCompare(name, "CAF")) return SF_FORMAT_CAF;
63 if (stringCaseCompare(name, "RF64")) return SF_FORMAT_RF64;
5e562a1 @timblechmann common: unify sndfile helper functions
timblechmann authored
64 return 0;
65 }
66
67 static inline int sampleFormatFromString(const char* name)
68 {
69 if (!name) return SF_FORMAT_PCM_16;
70
71 size_t len = strlen(name);
72 if (len < 1) return 0;
73
74 if (name[0] == 'u') {
75 if (len < 5) return 0;
76 if (name[4] == '8') return SF_FORMAT_PCM_U8; // uint8
77 return 0;
78 } else if (name[0] == 'i') {
79 if (len < 4) return 0;
80 if (name[3] == '8') return SF_FORMAT_PCM_S8; // int8
81 else if (name[3] == '1') return SF_FORMAT_PCM_16; // int16
82 else if (name[3] == '2') return SF_FORMAT_PCM_24; // int24
83 else if (name[3] == '3') return SF_FORMAT_PCM_32; // int32
84 } else if (name[0] == 'f') {
85 return SF_FORMAT_FLOAT; // float
86 } else if (name[0] == 'd') {
87 return SF_FORMAT_DOUBLE; // double
88 } else if (name[0] == 'm' || name[0] == 'u') {
89 return SF_FORMAT_ULAW; // mulaw ulaw
90 } else if (name[0] == 'a') {
91 return SF_FORMAT_ALAW; // alaw
92 }
93 return 0;
94 }
95
96 static inline int sndfileFormatInfoFromStrings(struct SF_INFO *info, const char *headerFormatString, const char *sampleFormatString)
97 {
98 int headerFormat = headerFormatFromString(headerFormatString);
99 if (!headerFormat) return kSCErr_Failed;
100
101 int sampleFormat = sampleFormatFromString(sampleFormatString);
102 if (!sampleFormat) return kSCErr_Failed;
103
104 info->format = (unsigned int)(headerFormat | sampleFormat);
105 return kSCErr_None;
106 }
107
108 #else
109
110 static inline int sndfileFormatInfoFromStrings(struct SF_INFO *info, const char *headerFormatString, const char *sampleFormatString)
111 {
112 return kSCErr_Failed;
113 }
114
115 #endif
116
117 #endif /* SC_SNDFILEHELPERS_HPP_INCLUDED */
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