1 | //file.c: |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2012 |
---|
5 | * |
---|
6 | * This file is part of libroar a part of RoarAudio, |
---|
7 | * a cross-platform sound system for both, home and professional use. |
---|
8 | * See README for details. |
---|
9 | * |
---|
10 | * This file is free software; you can redistribute it and/or modify |
---|
11 | * it under the terms of the GNU General Public License version 3 |
---|
12 | * as published by the Free Software Foundation. |
---|
13 | * |
---|
14 | * libroar is distributed in the hope that it will be useful, |
---|
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
17 | * GNU General Public License for more details. |
---|
18 | * |
---|
19 | * You should have received a copy of the GNU General Public License |
---|
20 | * along with this software; see the file COPYING. If not, write to |
---|
21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
---|
22 | * Boston, MA 02110-1301, USA. |
---|
23 | * |
---|
24 | * NOTE for everyone want's to change something and send patches: |
---|
25 | * read README and HACKING! There a addition information on |
---|
26 | * the license of this document you need to read before you send |
---|
27 | * any patches. |
---|
28 | * |
---|
29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
---|
30 | * or libpulse*: |
---|
31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
---|
32 | * and are therefore GPL. Because of this it may be illigal to use |
---|
33 | * them with any software that uses libesd, libartsc or libpulse*. |
---|
34 | */ |
---|
35 | |
---|
36 | #include "libroar.h" |
---|
37 | |
---|
38 | int roar_file_codecdetect(const char * buf, const int len) { |
---|
39 | int codec = -1; |
---|
40 | |
---|
41 | if ( len > 3 ) { |
---|
42 | if ( strncmp(buf, "OggS", 4) == 0 ) { |
---|
43 | codec = ROAR_CODEC_OGG_GENERAL; |
---|
44 | if ( len > 32 ) { // this is 5 bytes after the end of the header |
---|
45 | if ( strncmp(buf+28, "\177FLAC", 5) == 0 ) { |
---|
46 | codec = ROAR_CODEC_OGG_FLAC; |
---|
47 | } else if ( strncmp(buf+28, "Speex", 5) == 0 ) { |
---|
48 | codec = ROAR_CODEC_OGG_SPEEX; |
---|
49 | } else if ( len > 34 ) { // this is 7 bytes after the end of the header |
---|
50 | if ( strncmp(buf+28, "\001vorbis", 7) == 0 ) |
---|
51 | codec = ROAR_CODEC_OGG_VORBIS; |
---|
52 | } |
---|
53 | } |
---|
54 | } else if ( strncmp(buf, "MThd", 4) == 0 ) { |
---|
55 | codec = ROAR_CODEC_MIDI_FILE; |
---|
56 | } else if ( strncmp(buf, "RIFF", 4) == 0 ) { |
---|
57 | if ( len > 15 ) { |
---|
58 | if ( strncmp(buf+8, "WAVEfmt ", 8) == 0 ) |
---|
59 | codec = ROAR_CODEC_RIFF_WAVE; |
---|
60 | } |
---|
61 | } else if ( strncmp(buf, "Roar", 4) == 0 ) { |
---|
62 | if ( len > ROAR_SPEEX_MAGIC_LEN ) { |
---|
63 | if ( strncmp(buf, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN) == 0 ) |
---|
64 | codec = ROAR_CODEC_ROAR_SPEEX; |
---|
65 | #if ROAR_SPEEX_MAGIC_LEN < ROAR_CELT_MAGIC_LEN |
---|
66 | } |
---|
67 | if ( len > ROAR_CELT_MAGIC_LEN ) { |
---|
68 | #endif |
---|
69 | if ( strncmp(buf, ROAR_CELT_MAGIC_0, ROAR_CELT_MAGIC_LEN) == 0 || |
---|
70 | strncmp(buf, ROAR_CELT_MAGIC_1, ROAR_CELT_MAGIC_LEN) == 0 ) |
---|
71 | codec = ROAR_CODEC_ROAR_CELT; |
---|
72 | } |
---|
73 | } else if ( strncmp(buf, "fLaC", 4) == 0 ) { |
---|
74 | codec = ROAR_CODEC_FLAC; |
---|
75 | } else if ( strncmp(buf, ".snd", 4) == 0 ) { |
---|
76 | codec = ROAR_CODEC_AU; |
---|
77 | } else if ( len > 7 && strncmp(buf, "RAUM-CF0", 8) == 0 ) { |
---|
78 | codec = ROAR_CODEC_RAUM; |
---|
79 | } |
---|
80 | } |
---|
81 | |
---|
82 | return codec; |
---|
83 | } |
---|
84 | |
---|
85 | const char * roar_cdromdevice (void) { |
---|
86 | const char * k; |
---|
87 | |
---|
88 | if ( (k = getenv("CDDA_DEVICE")) != NULL ) |
---|
89 | return k; |
---|
90 | |
---|
91 | #ifdef ROAR_DEFAULT_CDROM |
---|
92 | return ROAR_DEFAULT_CDROM; |
---|
93 | #endif |
---|
94 | |
---|
95 | roar_err_set(ROAR_ERROR_NODEV); |
---|
96 | return NULL; |
---|
97 | } |
---|
98 | |
---|
99 | //ll |
---|