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-rw-r--r--tinyMEDIA/src/content/tmedia_content.c362
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diff --git a/tinyMEDIA/src/content/tmedia_content.c b/tinyMEDIA/src/content/tmedia_content.c
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+/*
+* Copyright (C) 2009-2010 Mamadou Diop.
+*
+* Contact: Mamadou Diop <diopmamadou(at)doubango.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.c
+ * @brief Base content object.
+ *
+ * @author Mamadou Diop <diopmamadou(at)doubango.org>
+ *
+ */
+#include "tinymedia/content/tmedia_content.h"
+
+#include "tsk_memory.h"
+#include "tsk_string.h"
+#include "tsk_debug.h"
+
+#include <string.h>
+
+/**@defgroup tmedia_content_group Contents
+*/
+
+typedef struct tmedia_content_plugin_entry_s
+{
+ const char* type;
+ const tmedia_content_plugin_def_t* plugin;
+}
+tmedia_content_plugin_entry_t;
+
+/* pointer to all registered contents */
+tmedia_content_plugin_entry_t __tmedia_content_plugin_entries[TMEDIA_CONTENT_MAX_PLUGINS][1] = { tsk_null };
+
+
+int tmedia_content_plugin_register(const char* type, const tmedia_content_plugin_def_t* plugin)
+{
+ tsk_size_t i;
+ int a = sizeof(__tmedia_content_plugin_entries);
+ if(!plugin || !plugin){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ /* add or replace the plugin */
+ for(i = 0; i<TMEDIA_CONTENT_MAX_PLUGINS; i++){
+ if(!__tmedia_content_plugin_entries[i]->plugin || (__tmedia_content_plugin_entries[i]->plugin == plugin && tsk_striequals(type, __tmedia_content_plugin_entries[i]->type))){
+ __tmedia_content_plugin_entries[i]->type = type;
+ __tmedia_content_plugin_entries[i]->plugin = plugin;
+ return 0;
+ }
+ }
+
+
+ TSK_DEBUG_ERROR("There are already %d plugins.", TMEDIA_CONTENT_MAX_PLUGINS);
+ return -2;
+}
+
+int tmedia_content_plugin_unregister(const char* type, const tmedia_content_plugin_def_t* plugin)
+{
+ tsk_size_t i;
+ tsk_bool_t found = tsk_false;
+ if(!plugin){
+ TSK_DEBUG_ERROR("Invalid Parameter");
+ return -1;
+ }
+
+ /* find the plugin to unregister */
+ for(i = 0; i<TMEDIA_CONTENT_MAX_PLUGINS && __tmedia_content_plugin_entries[i]->plugin; i++){
+ if(__tmedia_content_plugin_entries[i]->plugin == plugin && tsk_striequals(type, __tmedia_content_plugin_entries[i]->type)){
+ __tmedia_content_plugin_entries[i]->type = tsk_null,
+ __tmedia_content_plugin_entries[i]->plugin = tsk_null;
+ found = tsk_true;
+ break;
+ }
+ }
+
+ /* compact */
+ if(found){
+ for(; i<(TMEDIA_CONTENT_MAX_PLUGINS - 1); i++){
+ if(__tmedia_content_plugin_entries[i+1]->plugin){
+ __tmedia_content_plugin_entries[i]->type = __tmedia_content_plugin_entries[i+1]->type,
+ __tmedia_content_plugin_entries[i]->plugin = __tmedia_content_plugin_entries[i+1]->plugin;
+ }
+ else{
+ break;
+ }
+ }
+ __tmedia_content_plugin_entries[i]->type = tsk_null,
+ __tmedia_content_plugin_entries[i]->plugin = tsk_null;
+ }
+ return (found ? 0 : -2);
+}
+
+int tmedia_content_plugin_unregister_all()
+{
+ tsk_size_t i;
+ for(i = 0; i<TMEDIA_CONTENT_MAX_PLUGINS && __tmedia_content_plugin_entries[i]->plugin; i++){
+ __tmedia_content_plugin_entries[i]->type = tsk_null,
+ __tmedia_content_plugin_entries[i]->plugin = tsk_null;
+ }
+ return 0;
+}
+
+tmedia_content_t* tmedia_content_create(const char* type)
+{
+ tmedia_content_t* content = tsk_null;
+ const tmedia_content_plugin_entry_t* entry;
+ tsk_size_t i = 0;
+
+ while(i < TMEDIA_CONTENT_MAX_PLUGINS){
+ entry = __tmedia_content_plugin_entries[i];
+ if(!entry->plugin || !entry->type){
+ break;
+ }
+ if(entry->plugin->objdef && tsk_striequals(entry->type, type)){
+ if((content = tsk_object_new(entry->plugin->objdef))){
+ content->plugin = entry->plugin;
+ content->type = entry->type;
+ return content;
+ }
+ }
+ ++i;
+ }
+
+ TSK_DEBUG_WARN("Failed to find content type (%s) will be added as dummy", type);
+ if(tmedia_content_dummy_plugin_def_t){
+ content = tsk_object_new(tmedia_content_dummy_plugin_def_t->objdef);
+ content->plugin = tmedia_content_dummy_plugin_def_t;
+ content->type = type;
+ }
+
+ return content;
+}
+
+tmedia_content_t* tmedia_content_parse(const void* data, tsk_size_t size, const char* type)
+{
+ tmedia_content_t* content = tmedia_content_create(type);
+ if(content){
+ if(content->plugin->parse){
+ int ret;
+ if((ret = content->plugin->parse(content, data, size))){
+ TSK_DEBUG_ERROR("Failed to parse the content(%d)", ret);
+ TSK_OBJECT_SAFE_FREE(content);
+ return tsk_null;
+ }
+ return content;
+ }
+ else{
+ TSK_DEBUG_ERROR("No parser function for this content (%s)", type);
+ TSK_OBJECT_SAFE_FREE(content);
+ return tsk_null;
+ }
+ }
+ else{
+ TSK_DEBUG_ERROR("Failed to to find content(%s)", type);
+ return tsk_null;
+ }
+}
+
+int tmedia_content_init(tmedia_content_t* self)
+{
+ if(!self || !self->plugin){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return 0;
+}
+
+int tmedia_content_deinit(tmedia_content_t* self)
+{
+ if(!self || !self->plugin){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return 0;
+}
+
+tsk_buffer_t* tmedia_content_get_data(tmedia_content_t* self)
+{
+ if(!self || !self->plugin){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_null;
+ }
+ return self->plugin->get_data(self);
+}
+
+
+
+
+static int tmedia_content_dummy_parse(tmedia_content_t* self, const void* in_data, tsk_size_t in_size)
+{
+ tmedia_content_dummy_t *dummy = TMEDIA_CONTENT_DUMMY(self);
+ if(!dummy || dummy->data){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ dummy->data = tsk_buffer_create(in_data, in_size);
+ return 0;
+}
+
+static tsk_buffer_t* tmedia_content_dummy_get_data(tmedia_content_t* self)
+{
+ return tsk_object_ref(TMEDIA_CONTENT_DUMMY(self)->data);
+}
+
+
+
+
+
+
+//=================================================================================================
+// object/plugin definitions
+//
+/* constructor */
+static tsk_object_t* tmedia_content_dummy_ctor(tsk_object_t * self, va_list * app)
+{
+ tmedia_content_dummy_t *dummy = self;
+ if(dummy){
+ /* init base: called by tmedia_content_create() */
+ /* init self */
+ }
+ return self;
+}
+/* destructor */
+static tsk_object_t* tmedia_content_dummy_dtor(tsk_object_t * self)
+{
+ tmedia_content_dummy_t *dummy = self;
+ if(dummy){
+ /* deinit base */
+ tmedia_content_deinit(TMEDIA_CONTENT(dummy));
+ /* deinit self */
+ TSK_OBJECT_SAFE_FREE(dummy->data);
+ }
+
+ return self;
+}
+/* object definition */
+static const tsk_object_def_t tmedia_content_dummy_def_s =
+{
+ sizeof(tmedia_content_dummy_t),
+ tmedia_content_dummy_ctor,
+ tmedia_content_dummy_dtor,
+ tsk_null,
+};
+/* plugin definition*/
+static const tmedia_content_plugin_def_t tmedia_content_dummy_plugin_def_s =
+{
+ &tmedia_content_dummy_def_s,
+
+ "dummy",
+ tmedia_content_dummy_parse,
+ tmedia_content_dummy_get_data
+};
+const tmedia_content_plugin_def_t *tmedia_content_dummy_plugin_def_t = &tmedia_content_dummy_plugin_def_s;
+
+
+
+//=================================================================================================
+// media content header
+//
+
+tmedia_content_header_t* tmedia_content_header_create(const char* name, const char* value)
+{
+ tmedia_content_header_t* header = tsk_object_new(tmedia_content_header_def_t);
+ const char* str;
+
+ if(!header){
+ TSK_DEBUG_ERROR("Failed to create new header object");
+ return tsk_null;
+ }
+ header->name = tsk_strdup(name);
+ if((str = strstr(value, ";"))){
+ header->value = tsk_strndup(value, (str - value));
+ header->params = tsk_params_fromstring((str + 1), ";", tsk_true);
+ }
+ else{
+ header->value = tsk_strdup(value);
+ }
+
+ return header;
+}
+
+int tmedia_content_header_deinit(tmedia_content_header_t* self)
+{
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ TSK_FREE(self->name);
+ TSK_FREE(self->value);
+ TSK_OBJECT_SAFE_FREE(self->params);
+
+ return 0;
+}
+
+char* tmedia_content_header_tostring(const tmedia_content_header_t* self)
+{
+ char* string = tsk_null;
+
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_null;
+ }
+
+ tsk_sprintf(&string, "%s: %s", self->name, self->value);
+ if(self->params){
+ const tsk_list_item_t* item;
+ tsk_list_foreach(item, self->params){
+ tsk_strcat_2(&string, ";%s=%s", TSK_PARAM(item->data)->name, TSK_PARAM(item->data)->value);
+ }
+ }
+
+ return string;
+}
+
+/* constructor */
+static tsk_object_t* tmedia_content_header_ctor(tsk_object_t * self, va_list * app)
+{
+ tmedia_content_header_t *header = self;
+ if(header){
+ }
+ return self;
+}
+/* destructor */
+static tsk_object_t* tmedia_content_header_dtor(tsk_object_t * self)
+{
+ tmedia_content_header_t *header = self;
+ if(header){
+ tmedia_content_header_deinit(header);
+ }
+
+ return self;
+}
+/* object definition */
+static const tsk_object_def_t tmedia_content_header_def_s =
+{
+ sizeof(tmedia_content_header_t),
+ tmedia_content_header_ctor,
+ tmedia_content_header_dtor,
+ tsk_null,
+};
+const tsk_object_def_t *tmedia_content_header_def_t = &tmedia_content_header_def_s;
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