Asterisk.org: Developer Documentation (28 Oct 2009)

Wed Oct 28 15:47:56 2009

## 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 */