305 lines
7.8 KiB
C
305 lines
7.8 KiB
C
/*
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* Copyright (C) 2010-2014 Mamadou DIOP
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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_producer.c
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* @brief Base producer object.
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*/
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#include "tinymedia/tmedia_producer.h"
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#include "tinymedia/tmedia_defaults.h"
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#include "tsk_debug.h"
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/**@defgroup tmedia_producer_group Producers
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*/
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/* pointer to all registered producers */
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const tmedia_producer_plugin_def_t* __tmedia_producer_plugins[TMED_PRODUCER_MAX_PLUGINS] = {0};
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/**@ingroup tmedia_producer_group
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* Initialize the producer.
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* @param self The producer to initialize
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* @retval Zero if succeed and non-zero error code otherwise.
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*
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* @sa @ref tmedia_producer_deinit
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*/
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int tmedia_producer_init(tmedia_producer_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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self->video.chroma = TMEDIA_PRODUCER_CHROMA_DEFAULT;
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self->audio.bits_per_sample = TMEDIA_PRODUCER_BITS_PER_SAMPLE_DEFAULT;
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self->audio.channels = TMEDIA_PRODUCER_CHANNELS_DEFAULT;
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self->audio.rate = TMEDIA_PRODUCER_RATE_DEFAULT;
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self->audio.volume = tmedia_defaults_get_volume();
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return 0;
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}
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/**@ingroup tmedia_producer_group
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* callback to encode and send() data
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*/
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int tmedia_producer_set_enc_callback(tmedia_producer_t *self, tmedia_producer_enc_cb_f callback, const void* callback_data)
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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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self->enc_cb.callback = callback;
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self->enc_cb.callback_data = callback_data;
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return 0;
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}
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/**@ingroup tmedia_producer_group
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* callback to send() data "as is"
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*/
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int tmedia_producer_set_raw_callback(tmedia_producer_t *self, tmedia_producer_raw_cb_f callback, const void* callback_data)
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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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self->raw_cb.callback = callback;
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self->raw_cb.chunck_curr.usr_data = callback_data;
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return 0;
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}
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/**@ingroup tmedia_producer_group
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* @retval Zero if succeed and non-zero error code otherwise
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*/
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int tmedia_producer_set(tmedia_producer_t* self, const tmedia_param_t* param)
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{
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if(!self || !self->plugin || !self->plugin->set || !param){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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return self->plugin->set(self, param);
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}
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/**@ingroup tmedia_producer_group
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* Alert the producer to be prepared to start.
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* @param self the producer to prepare
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* @param codec The codec to use to prepare the producer
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* @retval Zero if succeed and non-zero error code otherwise
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*/
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int tmedia_producer_prepare(tmedia_producer_t *self, const tmedia_codec_t* codec)
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{
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int ret;
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if (!self || !self->plugin || !self->plugin->prepare || !codec) {
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if ((ret = self->plugin->prepare(self, codec)) == 0) {
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self->is_prepared = tsk_true;
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}
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return ret;
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}
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/**@ingroup tmedia_producer_group
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* Starts the producer
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* @param self The producer to start
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* @retval Zero if succeed and non-zero error code otherwise
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*/
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int tmedia_producer_start(tmedia_producer_t *self)
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{
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int ret;
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if (!self || !self->plugin || !self->plugin->start) {
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if ((ret = self->plugin->start(self)) == 0) {
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self->is_started = tsk_true;
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}
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return ret;
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}
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/**@ingroup tmedia_producer_group
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* Pauses the producer
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* @param self The producer to pause
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* @retval Zero if succeed and non-zero error code otherwise
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*/
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int tmedia_producer_pause(tmedia_producer_t *self)
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{
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if (!self || !self->plugin || !self->plugin->pause) {
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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return self->plugin->pause(self);
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}
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/**@ingroup tmedia_producer_group
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* Stops the producer
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* @param self The producer to stop
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* @retval Zero if succeed and non-zero error code otherwise
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*/
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int tmedia_producer_stop(tmedia_producer_t *self)
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{
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int ret;
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if (!self || !self->plugin || !self->plugin->stop) {
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if ((ret = self->plugin->stop(self)) == 0) {
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self->is_started = tsk_false;
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}
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return ret;
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}
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/**@ingroup tmedia_producer_group
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* DeInitialize the producer.
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* @param self The producer to deinitialize
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* @retval Zero if succeed and non-zero error code otherwise.
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*
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* @sa @ref tmedia_producer_deinit
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*/
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int tmedia_producer_deinit(tmedia_producer_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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/**@ingroup tmedia_producer_group
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* Creates a new producer using an already registered plugin.
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* @param type The type of the producer to create
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* @param session_id
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* @sa @ref tmedia_producer_plugin_register()
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*/
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tmedia_producer_t* tmedia_producer_create(tmedia_type_t type, uint64_t session_id)
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{
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tmedia_producer_t* producer = tsk_null;
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const tmedia_producer_plugin_def_t* plugin;
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tsk_size_t i = 0;
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while((i < TMED_PRODUCER_MAX_PLUGINS) && (plugin = __tmedia_producer_plugins[i++])){
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if(plugin->objdef && plugin->type == type){
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if((producer = tsk_object_new(plugin->objdef))){
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/* initialize the newly created producer */
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producer->plugin = plugin;
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producer->session_id = session_id;
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break;
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}
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}
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}
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return producer;
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}
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/**@ingroup tmedia_producer_group
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* Registers a producer 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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* @sa @ref tmedia_producer_create()
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*/
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int tmedia_producer_plugin_register(const tmedia_producer_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_PRODUCER_MAX_PLUGINS; i++){
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if(!__tmedia_producer_plugins[i] || (__tmedia_producer_plugins[i] == plugin)){
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__tmedia_producer_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_PRODUCER_MAX_PLUGINS);
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return -2;
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}
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/**@ingroup tmedia_producer_group
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* UnRegisters a producer 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_producer_plugin_unregister(const tmedia_producer_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_PRODUCER_MAX_PLUGINS && __tmedia_producer_plugins[i]; i++){
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if(__tmedia_producer_plugins[i] == plugin){
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__tmedia_producer_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_PRODUCER_MAX_PLUGINS - 1); i++){
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if(__tmedia_producer_plugins[i+1]){
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__tmedia_producer_plugins[i] = __tmedia_producer_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_producer_plugins[i] = tsk_null;
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}
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return (found ? 0 : -2);
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}
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/**@ingroup tmedia_producer_group
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* UnRegisters all producers matching the given type.
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* @param type the type of the plugins to unregister.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tmedia_producer_plugin_unregister_by_type(tmedia_type_t type)
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{
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int i, j;
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/* find the plugin to unregister */
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for (i = 0; i < TMED_PRODUCER_MAX_PLUGINS && __tmedia_producer_plugins[i]; ) {
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if ((__tmedia_producer_plugins[i]->type & type) == __tmedia_producer_plugins[i]->type) {
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__tmedia_producer_plugins[i] = tsk_null;
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/* compact */
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for (j = i; j < (TMED_PRODUCER_MAX_PLUGINS - 1) && __tmedia_producer_plugins[j + 1]; ++j) {
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__tmedia_producer_plugins[j] = __tmedia_producer_plugins[j + 1];
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}
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__tmedia_producer_plugins[j] = tsk_null;
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}
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else {
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++i;
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}
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}
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return 0;
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}
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