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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*
*/
/**@file tmedia_content.h
* @brief Base content object.
*
* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
*/
#ifndef TINYMEDIA_CONTENT_H
#define TINYMEDIA_CONTENT_H
#include "tinymedia_config.h"
#include "tsk_buffer.h"
#include "tsk_list.h"
#include "tsk_params.h"
TMEDIA_BEGIN_DECLS
/**Max number of plugins (content types) we can create */
#define TMEDIA_CONTENT_MAX_PLUGINS 0x0F
/** cast any pointer to @ref tmedia_content_t* object */
#define TMEDIA_CONTENT(self) ((tmedia_content_t*)(self))
/** Base object for all contents */
typedef struct tmedia_content_s {
TSK_DECLARE_OBJECT;
const char* type;
//! plugin used to create the codec
const struct tmedia_content_plugin_def_s* plugin;
}
tmedia_content_t;
/** Virtual table used to define a content plugin */
typedef struct tmedia_content_plugin_def_s {
//! object definition used to create an instance of the codec
const tsk_object_def_t* objdef;
//! e.g. 'message/CPIM'
const char* type;
int (*parse) (tmedia_content_t*, const void* in_data, tsk_size_t in_size);
tsk_buffer_t* (*get_data) (tmedia_content_t*);
}
tmedia_content_plugin_def_t;
/** List of @ref tmedia_codec_t elements */
typedef tsk_list_t tmedia_contents_L_t;
/**< Declare base class as content */
#define TMEDIA_DECLARE_CONTENT tmedia_content_t __content__
TINYMEDIA_API int tmedia_content_plugin_register(const char* type, const tmedia_content_plugin_def_t* plugin);
TINYMEDIA_API int tmedia_content_plugin_unregister(const char* type, const tmedia_content_plugin_def_t* plugin);
TINYMEDIA_API int tmedia_content_plugin_unregister_all();
TINYMEDIA_API tmedia_content_t* tmedia_content_create(const char* type);
TINYMEDIA_API tmedia_content_t* tmedia_content_parse(const void* data, tsk_size_t size, const char* type);
TINYMEDIA_API int tmedia_content_init(tmedia_content_t* self);
TINYMEDIA_API int tmedia_content_deinit(tmedia_content_t* self);
TINYMEDIA_API tsk_buffer_t* tmedia_content_get_data(tmedia_content_t* self);
/** dummy content */
typedef struct tmedia_content_dummy_s {
TMEDIA_DECLARE_CONTENT;
tsk_buffer_t* data;
}
tmedia_content_dummy_t;
#define TMEDIA_CONTENT_DUMMY(self) ((tmedia_content_dummy_t*)(self))
#define TMEDIA_CONTENT_IS_DUMMY(self) ( (self) && (TMEDIA_CONTENT((self))->plugin==tmedia_content_dummy_plugin_def_t) )
TINYMEDIA_GEXTERN const tmedia_content_plugin_def_t *tmedia_content_dummy_plugin_def_t;
/** content header */
typedef struct tmedia_content_header_s {
TSK_DECLARE_OBJECT;
char* name;
char* value;
tsk_params_L_t* params;
}
tmedia_content_header_t;
tmedia_content_header_t* tmedia_content_header_create(const char* name, const char* value);
int tmedia_content_header_deinit(tmedia_content_header_t* self);
char* tmedia_content_header_tostring(const tmedia_content_header_t* self);
#define TMEDIA_CONTENT_HEADER(self) ((tmedia_content_header_t*)(self))
#define TMEDIA_DECLARE_CONTENT_HEADER tmedia_content_header_t __content_header__
typedef tsk_list_t tmedia_content_headers_L_t;
TINYMEDIA_GEXTERN const tsk_object_def_t *tmedia_content_header_def_t;
TMEDIA_END_DECLS
#endif /* TINYMEDIA_CONTENT_H */
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