1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
|
/*
* Copyright 2008-2013 Various Authors
* Copyright 2005 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef CMUS_OUTPUT_H
#define CMUS_OUTPUT_H
#include "sf.h"
#include "channelmap.h"
extern int volume_max;
extern int volume_l;
extern int volume_r;
void op_load_plugins(void);
void op_exit_plugins(void);
/*
* select output plugin and open its mixer
*
* errors: OP_ERROR_{ERRNO, NO_PLUGIN}
*/
int op_select(const char *name);
int op_select_any(void);
/*
* open selected plugin
*
* errors: OP_ERROR_{}
*/
int op_open(sample_format_t sf, const channel_position_t *channel_map);
/*
* drop pcm data
*
* errors: OP_ERROR_{ERRNO}
*/
int op_drop(void);
/*
* close plugin
*
* errors: OP_ERROR_{}
*/
int op_close(void);
/*
* returns bytes written or error
*
* errors: OP_ERROR_{ERRNO}
*/
int op_write(const char *buffer, int count);
/*
* errors: OP_ERROR_{}
*/
int op_pause(void);
int op_unpause(void);
/*
* returns space in output buffer in bytes or -1 if busy
*/
int op_buffer_space(void);
/*
* errors: OP_ERROR_{}
*/
int op_reset(void);
void mixer_open(void);
void mixer_close(void);
int mixer_set_volume(int left, int right);
int mixer_read_volume(void);
int mixer_get_fds(int *fds);
void op_add_options(void);
char *op_get_error_msg(int rc, const char *arg);
void op_dump_plugins(void);
const char *op_get_current(void);
#endif
|