282 lines
6.9 KiB
C
282 lines
6.9 KiB
C
/*
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* Copyright (C) 2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO 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 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO 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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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tmedia_jitterbuffer.c
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* @brief Audio/Video JitterBuffer plugin
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*
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* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*/
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#include "tinymedia/tmedia_jitterbuffer.h"
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#include "tsk_debug.h"
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/* pointer to all registered jitter_buffers */
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static const tmedia_jitterbuffer_plugin_def_t* __tmedia_jitterbuffer_plugins[TMED_JITTER_BUFFER_MAX_PLUGINS] = {0};
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int tmedia_jitterbuffer_init(tmedia_jitterbuffer_t* self)
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{
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if(!self){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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return 0;
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}
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int tmedia_jitterbuffer_set(tmedia_jitterbuffer_t *self, const tmedia_param_t* param)
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{
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if(!self || !self->plugin || !param){
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TSK_DEBUG_ERROR("Invalid parameter");
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return 0;
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}
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return self->plugin->set ? self->plugin->set(self, param) : 0;
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}
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int tmedia_jitterbuffer_open(tmedia_jitterbuffer_t* self, uint32_t frame_duration, uint32_t rate)
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{
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int ret;
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if(!self || !self->plugin || !self->plugin->open){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(self->opened){
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TSK_DEBUG_WARN("JitterBuffer already opened");
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return 0;
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}
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if((ret = self->plugin->open(self, frame_duration, rate))){
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TSK_DEBUG_ERROR("Failed to open [%s] jitterbufferr", self->plugin->desc);
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return ret;
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}
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else{
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self->opened = tsk_true;
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return 0;
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}
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}
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int tmedia_jitterbuffer_tick(tmedia_jitterbuffer_t* self)
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{
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if(!self || !self->plugin || !self->plugin->tick){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!self->opened){
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TSK_DEBUG_ERROR("JitterBuffer not opened");
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return -1;
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}
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return self->plugin->tick(self);
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}
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int tmedia_jitterbuffer_put(tmedia_jitterbuffer_t* self, void* data, tsk_size_t data_size, const tsk_object_t* proto_hdr)
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{
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if(!self || !self->plugin || !self->plugin->put){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!self->opened){
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TSK_DEBUG_ERROR("JitterBuffer not opened");
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return -1;
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}
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return self->plugin->put(self, data, data_size, proto_hdr);
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}
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tsk_size_t tmedia_jitterbuffer_get(tmedia_jitterbuffer_t* self, void* out_data, tsk_size_t out_size)
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{
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if(!self || !self->plugin || !self->plugin->get){
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TSK_DEBUG_ERROR("Invalid parameter");
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return 0;
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}
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if(!self->opened){
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TSK_DEBUG_ERROR("JitterBuffer not opened");
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return 0;
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}
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return self->plugin->get(self, out_data, out_size);
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}
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int tmedia_jitterbuffer_reset(tmedia_jitterbuffer_t* self)
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{
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if(!self || !self->plugin){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(self->opened && self->plugin->reset){
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return self->plugin->reset(self);
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}
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return 0;
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}
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int tmedia_jitterbuffer_close(tmedia_jitterbuffer_t* self)
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{
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if(!self || !self->plugin){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!self->opened){
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TSK_DEBUG_WARN("JitterBuffer not opened");
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return 0;
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}
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if(self->plugin->close){
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int ret;
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if((ret = self->plugin->close(self))){
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TSK_DEBUG_ERROR("Failed to close [%s] jitterbufferr", self->plugin->desc);
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return ret;
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}
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else{
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self->opened = tsk_false;
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return 0;
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}
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}
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else{
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self->opened = tsk_false;
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return 0;
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}
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}
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int tmedia_jitterbuffer_deinit(tmedia_jitterbuffer_t* self)
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{
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if(!self){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(self->opened){
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tmedia_jitterbuffer_close(self);
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}
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return 0;
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}
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tmedia_jitterbuffer_t* tmedia_jitterbuffer_create(tmedia_type_t type)
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{
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tmedia_jitterbuffer_t* jitter_buffer = tsk_null;
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const tmedia_jitterbuffer_plugin_def_t* plugin;
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tsk_size_t i = 0;
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while((i < TMED_JITTER_BUFFER_MAX_PLUGINS) && (plugin = __tmedia_jitterbuffer_plugins[i++])){
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if(plugin->objdef && plugin->type == type){
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if((jitter_buffer = tsk_object_new(plugin->objdef))){
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/* initialize the newly created jitter_buffer */
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jitter_buffer->plugin = plugin;
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break;
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}
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}
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}
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return jitter_buffer;
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}
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int tmedia_jitterbuffer_plugin_register(const tmedia_jitterbuffer_plugin_def_t* plugin)
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{
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tsk_size_t i;
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if(!plugin){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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/* add or replace the plugin */
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for(i = 0; i<TMED_JITTER_BUFFER_MAX_PLUGINS; i++){
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if(!__tmedia_jitterbuffer_plugins[i] || (__tmedia_jitterbuffer_plugins[i] == plugin)){
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__tmedia_jitterbuffer_plugins[i] = plugin;
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return 0;
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}
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}
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TSK_DEBUG_ERROR("There are already %d plugins.", TMED_JITTER_BUFFER_MAX_PLUGINS);
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return -2;
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}
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/**@ingroup tmedia_jitterbuffer_group
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* UnRegisters a jitter_buffer plugin.
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* @param plugin the definition of the plugin.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tmedia_jitterbuffer_plugin_unregister(const tmedia_jitterbuffer_plugin_def_t* plugin)
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{
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tsk_size_t i;
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tsk_bool_t found = tsk_false;
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if(!plugin){
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TSK_DEBUG_ERROR("Invalid Parameter");
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return -1;
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}
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/* find the plugin to unregister */
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for(i = 0; i<TMED_JITTER_BUFFER_MAX_PLUGINS && __tmedia_jitterbuffer_plugins[i]; i++){
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if(__tmedia_jitterbuffer_plugins[i] == plugin){
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__tmedia_jitterbuffer_plugins[i] = tsk_null;
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found = tsk_true;
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break;
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}
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}
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/* compact */
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if(found){
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for(; i<(TMED_JITTER_BUFFER_MAX_PLUGINS - 1); i++){
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if(__tmedia_jitterbuffer_plugins[i+1]){
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__tmedia_jitterbuffer_plugins[i] = __tmedia_jitterbuffer_plugins[i+1];
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}
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else{
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break;
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}
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}
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__tmedia_jitterbuffer_plugins[i] = tsk_null;
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}
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return (found ? 0 : -2);
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}
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int tmedia_jitterbuffer_plugin_unregister_by_type(tmedia_type_t type)
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{
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tsk_size_t i;
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tsk_bool_t found = tsk_false;
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/* find the plugin to unregister */
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for(i = 0; i<TMED_JITTER_BUFFER_MAX_PLUGINS && __tmedia_jitterbuffer_plugins[i]; i++){
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if((__tmedia_jitterbuffer_plugins[i]->type & type) == __tmedia_jitterbuffer_plugins[i]->type){
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__tmedia_jitterbuffer_plugins[i] = tsk_null;
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found = tsk_true;
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break;
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}
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}
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/* compact */
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if(found){
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for(; i<(TMED_JITTER_BUFFER_MAX_PLUGINS - 1); i++){
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if(__tmedia_jitterbuffer_plugins[i+1]){
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__tmedia_jitterbuffer_plugins[i] = __tmedia_jitterbuffer_plugins[i+1];
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}
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else{
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break;
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}
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}
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__tmedia_jitterbuffer_plugins[i] = tsk_null;
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}
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return (found ? 0 : -2);
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}
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