2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2005, Digium, Inc.
6 * Matthew Fredrickson <creslin@digium.com>
8 * See http://www.asterisk.org for more information about
9 * the Asterisk project. Please do not directly contact
10 * any of the maintainers of this project for assistance;
11 * the project provides a web site, mailing lists and IRC
12 * channels for your use.
14 * This program is free software, distributed under the terms of
15 * the GNU General Public License Version 2. See the LICENSE file
16 * at the top of the source tree.
20 * \brief General Asterisk channel transcoding definitions.
23 #ifndef _ASTERISK_TRANSCAP_H
24 #define _ASTERISK_TRANSCAP_H
26 /* These definitions are taken directly out of libpri.h and used here.
27 * DO NOT change them as it will cause unexpected behavior in channels
28 * that utilize these fields.
31 /*! \name AstTranscode General Asterisk channel transcoding definitions.
34 #define AST_TRANS_CAP_SPEECH 0x0
35 #define AST_TRANS_CAP_DIGITAL 0x08
36 #define AST_TRANS_CAP_RESTRICTED_DIGITAL 0x09
37 #define AST_TRANS_CAP_3_1K_AUDIO 0x10
38 #define AST_TRANS_CAP_7K_AUDIO 0x11 /* Depriciated ITU Q.931 (05/1998)*/
39 #define AST_TRANS_CAP_DIGITAL_W_TONES 0x11
40 #define AST_TRANS_CAP_VIDEO 0x18
43 #define IS_DIGITAL(cap)\
44 (cap) & AST_TRANS_CAP_DIGITAL ? 1 : 0
46 #endif /* _ASTERISK_TRANSCAP_H */