f79a70d1b9
Add -Wmissing-prototypes if compiling with gcc Static where possible git-svn-id: https://svn.musicpd.org/mpd/trunk@4657 09075e82-0dd4-0310-85a5-a0d7c8717e4f
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/* the Music Player Daemon (MPD)
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* (c)2003-2006 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef INPUT_PLUGIN_H
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#define INPUT_PLUGIN_H
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#include "../config.h"
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#include "inputStream.h"
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#include "decode.h"
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#include "outputBuffer.h"
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#include "tag.h"
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/* valid values for streamTypes in the InputPlugin struct: */
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#define INPUT_PLUGIN_STREAM_FILE 0x01
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#define INPUT_PLUGIN_STREAM_URL 0x02
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/* optional, set this to NULL if the InputPlugin doesn't have/need one
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* this must return < 0 if there is an error and >= 0 otherwise */
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typedef int (*InputPlugin_initFunc) ();
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/* optional, set this to NULL if the InputPlugin doesn't have/need one */
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typedef void (*InputPlugin_finishFunc) ();
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/* boolean return value, returns 1 if the InputStream is decodable by
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* the InputPlugin, 0 if not */
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typedef unsigned int (*InputPlugin_tryDecodeFunc) (InputStream *);
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/* this will be used to decode InputStreams, and is recommended for files
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* and networked (HTTP) connections.
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*
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* returns -1 on error, 0 on success */
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typedef int (*InputPlugin_streamDecodeFunc) (OutputBuffer *, DecoderControl *,
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InputStream *);
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/* use this if and only if your InputPlugin can only be passed a filename or
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* handle as input, and will not allow callbacks to be set (like Ogg-Vorbis
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* and FLAC libraries allow)
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*
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* returns -1 on error, 0 on success */
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typedef int (*InputPlugin_fileDecodeFunc) (OutputBuffer *, DecoderControl *,
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char *path);
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/* file should be the full path! Returns NULL if a tag cannot be found
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* or read */
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typedef MpdTag *(*InputPlugin_tagDupFunc) (char *file);
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typedef struct _InputPlugin {
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char *name;
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InputPlugin_initFunc initFunc;
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InputPlugin_finishFunc finishFunc;
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InputPlugin_tryDecodeFunc tryDecodeFunc;
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InputPlugin_streamDecodeFunc streamDecodeFunc;
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InputPlugin_fileDecodeFunc fileDecodeFunc;
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InputPlugin_tagDupFunc tagDupFunc;
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/* one or more of the INPUT_PLUGIN_STREAM_* values OR'd together */
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unsigned char streamTypes;
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/* last element in these arrays must always be a NULL: */
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char **suffixes;
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char **mimeTypes;
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} InputPlugin;
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/* individual functions to load/unload plugins */
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void loadInputPlugin(InputPlugin * inputPlugin);
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void unloadInputPlugin(InputPlugin * inputPlugin);
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/* interface for using plugins */
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InputPlugin *getInputPluginFromSuffix(char *suffix, unsigned int next);
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InputPlugin *getInputPluginFromMimeType(char *mimeType, unsigned int next);
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InputPlugin *getInputPluginFromName(char *name);
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void printAllInputPluginSuffixes(FILE * fp);
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/* this is where we "load" all the "plugins" ;-) */
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void initInputPlugins(void);
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/* this is where we "unload" all the "plugins" */
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void finishInputPlugins(void);
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#endif
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