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/*
* Copyright (C) 2012 Doubango Telecom <http://www.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_converter_video.c
* @brief Video converter plugin (chroma, rotation, scaling, ...)
*
* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
*/
#include "tinymedia/tmedia_converter_video.h"
#include "tsk_debug.h"
/* pointer to all registered converter_videos */
static const tmedia_converter_video_plugin_def_t* __tmedia_converter_video_plugins[TMED_CONVERTER_VIDEO_MAX_PLUGINS] = {0};
tmedia_converter_video_t* tmedia_converter_video_create(tsk_size_t srcWidth, tsk_size_t srcHeight, tmedia_chroma_t srcChroma, tsk_size_t dstWidth, tsk_size_t dstHeight, tmedia_chroma_t dstChroma)
{
tmedia_converter_video_t* converter = tsk_null;
const tmedia_converter_video_plugin_def_t* plugin;
tsk_size_t i = 0;
while((i < TMED_CONVERTER_VIDEO_MAX_PLUGINS) && (plugin = __tmedia_converter_video_plugins[i++])){
if(plugin->objdef && (converter = tsk_object_new(plugin->objdef))){
converter->plugin = plugin;
converter->scale_rotated_frames = tsk_true;
// must not set other values beacause 'zero' is meaningful
if(converter->plugin->init){
if(converter->plugin->init(converter, srcWidth, srcHeight, srcChroma, dstWidth, dstHeight, dstChroma)){
TSK_DEBUG_ERROR("Failed to initialized the video converter");
TSK_OBJECT_SAFE_FREE(converter);
continue;
}
}
converter->srcChroma = srcChroma;
converter->dstChroma = dstChroma;
converter->srcWidth = srcWidth ? srcWidth : dstWidth;
converter->srcHeight = srcHeight ? srcHeight : dstHeight;
converter->dstWidth = dstWidth ? dstWidth : srcWidth;
converter->dstHeight = dstHeight ? dstHeight : srcHeight;
break;
}
}
return converter;
}
int tmedia_converter_video_plugin_register(const tmedia_converter_video_plugin_def_t* plugin)
{
tsk_size_t i;
if(!plugin){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
/* add or replace the plugin */
for(i = 0; i<TMED_CONVERTER_VIDEO_MAX_PLUGINS; i++){
if(!__tmedia_converter_video_plugins[i] || (__tmedia_converter_video_plugins[i] == plugin)){
__tmedia_converter_video_plugins[i] = plugin;
return 0;
}
}
TSK_DEBUG_ERROR("There are already %d plugins.", TMED_CONVERTER_VIDEO_MAX_PLUGINS);
return -2;
}
tsk_size_t tmedia_converter_video_plugin_registry_count()
{
tsk_size_t count;
for(count = 0;
count < TMED_CONVERTER_VIDEO_MAX_PLUGINS && __tmedia_converter_video_plugins[count];
++count) ;
return count;
}
int tmedia_converter_video_plugin_unregister(const tmedia_converter_video_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<TMED_CONVERTER_VIDEO_MAX_PLUGINS && __tmedia_converter_video_plugins[i]; i++){
if(__tmedia_converter_video_plugins[i] == plugin){
__tmedia_converter_video_plugins[i] = tsk_null;
found = tsk_true;
break;
}
}
/* compact */
if(found){
for(; i<(TMED_CONVERTER_VIDEO_MAX_PLUGINS - 1); i++){
if(__tmedia_converter_video_plugins[i+1]){
__tmedia_converter_video_plugins[i] = __tmedia_converter_video_plugins[i+1];
}
else{
break;
}
}
__tmedia_converter_video_plugins[i] = tsk_null;
}
return (found ? 0 : -2);
}
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