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/*
* Copyright 2004 Timo Hirvonen
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _OP_H
#define _OP_H
#include <sf.h>
enum {
/* no error */
OP_ERROR_SUCCESS,
/* system error (error code in errno) */
OP_ERROR_ERRNO,
/* no such plugin */
OP_ERROR_NO_PLUGIN,
/* plugin not initialized */
OP_ERROR_NOT_INITIALIZED,
/* function not supported */
OP_ERROR_NOT_SUPPORTED,
/* plugin does not support the sample format */
OP_ERROR_SAMPLE_FORMAT,
/* plugin does not have this option */
OP_ERROR_NOT_OPTION,
/* */
OP_ERROR_INTERNAL
};
struct output_plugin_ops {
int (*init)(void);
int (*exit)(void);
int (*open)(sample_format_t sf);
int (*close)(void);
int (*drop)(void);
int (*write)(const char *buffer, int count);
int (*buffer_space)(void);
/* these can be NULL */
int (*pause)(void);
int (*unpause)(void);
int (*set_option)(int key, const char *val);
int (*get_option)(int key, char **val);
};
#endif
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