Thu May 24 14:31:54 2007

Asterisk developer's documentation


slinfactory.h

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 2005, Anthony Minessale II
00005  *
00006  * Anthony Minessale <anthmct@yahoo.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*! \file
00020  * \brief A machine to gather up arbitrary frames and convert them
00021  * to raw slinear on demand.
00022  */
00023 
00024 #ifndef _ASTERISK_SLINFACTORY_H
00025 #define _ASTERISK_SLINFACTORY_H
00026 #include <stdlib.h>
00027 #include <unistd.h>
00028 #include <string.h>
00029 
00030 
00031 #if defined(__cplusplus) || defined(c_plusplus)
00032 extern "C" {
00033 #endif
00034 
00035 struct ast_slinfactory {
00036    struct ast_frame *queue;
00037    struct ast_trans_pvt *trans;
00038    short hold[1280];
00039    short *offset;
00040    size_t holdlen;
00041    int size;
00042    int format;
00043 };
00044 
00045 void ast_slinfactory_init(struct ast_slinfactory *sf);
00046 void ast_slinfactory_destroy(struct ast_slinfactory *sf);
00047 int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f);
00048 int ast_slinfactory_read(struct ast_slinfactory *sf, short *buf, size_t bytes);
00049        
00050 
00051 
00052 #if defined(__cplusplus) || defined(c_plusplus)
00053 }
00054 #endif
00055 
00056 #endif /* _ASTERISK_SLINFACTORY_H */

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