MPD 0.17~git
|
00001 /* 00002 * Copyright (C) 2003-2011 The Music Player Daemon Project 00003 * http://www.musicpd.org 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation; either version 2 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License along 00016 * with this program; if not, write to the Free Software Foundation, Inc., 00017 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 00018 */ 00019 00026 #ifndef MPD_FILTER_PLUGIN_H 00027 #define MPD_FILTER_PLUGIN_H 00028 00029 #include <glib.h> 00030 00031 #include <stdbool.h> 00032 #include <stddef.h> 00033 00034 struct config_param; 00035 struct filter; 00036 00037 struct filter_plugin { 00038 const char *name; 00039 00043 struct filter *(*init)(const struct config_param *param, 00044 GError **error_r); 00045 00049 void (*finish)(struct filter *filter); 00050 00058 const struct audio_format * 00059 (*open)(struct filter *filter, 00060 struct audio_format *audio_format, 00061 GError **error_r); 00062 00066 void (*close)(struct filter *filter); 00067 00071 const void *(*filter)(struct filter *filter, 00072 const void *src, size_t src_size, 00073 size_t *dest_buffer_r, 00074 GError **error_r); 00075 }; 00076 00086 struct filter * 00087 filter_new(const struct filter_plugin *plugin, 00088 const struct config_param *param, GError **error_r); 00089 00099 struct filter * 00100 filter_configured_new(const struct config_param *param, GError **error_r); 00101 00108 void 00109 filter_free(struct filter *filter); 00110 00121 const struct audio_format * 00122 filter_open(struct filter *filter, struct audio_format *audio_format, 00123 GError **error_r); 00124 00130 void 00131 filter_close(struct filter *filter); 00132 00145 const void * 00146 filter_filter(struct filter *filter, const void *src, size_t src_size, 00147 size_t *dest_size_r, 00148 GError **error_r); 00149 00150 #endif