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Diffstat (limited to 'tinyMEDIA/src/tmedia_consumer.c')
| -rw-r--r-- | tinyMEDIA/src/tmedia_consumer.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/tinyMEDIA/src/tmedia_consumer.c b/tinyMEDIA/src/tmedia_consumer.c new file mode 100644 index 0000000..215a959 --- /dev/null +++ b/tinyMEDIA/src/tmedia_consumer.c @@ -0,0 +1,288 @@ +/* +* Copyright (C) 2010-2014 Mamadou DIOP +* +* 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_consumer.c + * @brief Base consumer object. + */ +#include "tinymedia/tmedia_consumer.h" +#include "tinymedia/tmedia_defaults.h" + +#include "tsk_debug.h" + + +/**@defgroup tmedia_consumer_group Producers +*/ + +/* pointer to all registered consumers */ +static const tmedia_consumer_plugin_def_t* __tmedia_consumer_plugins[TMED_CONSUMER_MAX_PLUGINS] = {0}; + +/**@ingroup tmedia_consumer_group +* Initialize the consumer. +* @param self The consumer to initialize +* @retval Zero if succeed and non-zero error code otherwise. +* +* @sa @ref tmedia_consumer_deinit +*/ +int tmedia_consumer_init(tmedia_consumer_t* self) +{ + if(!self){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + + self->video.in.chroma = TMEDIA_CONSUMER_CHROMA_DEFAULT; + self->video.display.chroma = TMEDIA_CONSUMER_CHROMA_DEFAULT; + + self->audio.bits_per_sample = TMEDIA_CONSUMER_BITS_PER_SAMPLE_DEFAULT; + self->audio.ptime = tmedia_defaults_get_audio_ptime(); + self->audio.volume = tmedia_defaults_get_volume(); + + return 0; +} + +/**@ingroup tmedia_consumer_group +* @retval Zero if succeed and non-zero error code otherwise +*/ +int tmedia_consumer_set(tmedia_consumer_t *self, const tmedia_param_t* param) +{ + if(!self || !self->plugin || !self->plugin->set || !param){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + return self->plugin->set(self, param); +} + +/**@ingroup tmedia_consumer_group +* Alert the consumer to be prepared to start. +* @param self the consumer to prepare +* @param codec Negociated codec +* @retval Zero if succeed and non-zero error code otherwise +*/ +int tmedia_consumer_prepare(tmedia_consumer_t *self, const tmedia_codec_t* codec) +{ + int ret; + if(!self || !self->plugin || !self->plugin->prepare || !codec){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + if((ret = self->plugin->prepare(self, codec)) == 0){ + self->is_prepared = tsk_true; + } + return ret; +} + +/**@ingroup tmedia_consumer_group +* Starts the consumer +* @param self The consumer to start +* @retval Zero if succeed and non-zero error code otherwise +*/ +int tmedia_consumer_start(tmedia_consumer_t *self) +{ + int ret; + if (!self || !self->plugin || !self->plugin->start) { + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + if ((ret = self->plugin->start(self)) == 0) { + self->is_started = tsk_true; + } + return ret; +} + +/**@ingroup tmedia_consumer_group +* Consumes data +* @param self The consumer +* @param buffer Pointer to the data to consume +* @param size Size of the data to consume +*/ +int tmedia_consumer_consume(tmedia_consumer_t* self, const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr) +{ + if(!self || !self->plugin || !self->plugin->consume){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + return self->plugin->consume(self, buffer, size, proto_hdr); +} + +/**@ingroup tmedia_consumer_group +* Pauses the consumer +* @param self The consumer to pause +* @retval Zero if succeed and non-zero error code otherwise +*/ +int tmedia_consumer_pause(tmedia_consumer_t *self) +{ + if(!self || !self->plugin || !self->plugin->pause){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + return self->plugin->pause(self); +} + + +/**@ingroup tmedia_consumer_group +* Stops the consumer +* @param self The consumer to stop +* @retval Zero if succeed and non-zero error code otherwise +*/ +int tmedia_consumer_stop(tmedia_consumer_t *self) +{ + int ret; + if (!self || !self->plugin || !self->plugin->stop) { + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + if ((ret = self->plugin->stop(self)) == 0) { + self->is_started = tsk_false; + } + return ret; +} + + +/**@ingroup tmedia_consumer_group +* DeInitialize the consumer. +* @param self The consumer to deinitialize +* @retval Zero if succeed and non-zero error code otherwise. +* +* @sa @ref tmedia_consumer_deinit +*/ +int tmedia_consumer_deinit(tmedia_consumer_t* self) +{ + if(!self){ + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + return 0; +} + +/**@ingroup tmedia_consumer_group +* Creates a new consumer using an already registered plugin. +* @param type The type of the consumer to create +* @param session_id +* @sa @ref tmedia_consumer_plugin_register() +*/ +tmedia_consumer_t* tmedia_consumer_create(tmedia_type_t type, uint64_t session_id) +{ + tmedia_consumer_t* consumer = tsk_null; + const tmedia_consumer_plugin_def_t* plugin; + tsk_size_t i = 0; + + while((i < TMED_CONSUMER_MAX_PLUGINS) && (plugin = __tmedia_consumer_plugins[i++])){ + if(plugin->objdef && plugin->type == type){ + if((consumer = tsk_object_new(plugin->objdef))){ + /* initialize the newly created consumer */ + consumer->plugin = plugin; + consumer->session_id = session_id; + break; + } + } + } + + return consumer; +} + +/**@ingroup tmedia_consumer_group +* Registers a consumer plugin. +* @param plugin the definition of the plugin. +* @retval Zero if succeed and non-zero error code otherwise. +* @sa @ref tmedia_consumer_create() +*/ +int tmedia_consumer_plugin_register(const tmedia_consumer_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_CONSUMER_MAX_PLUGINS; i++){ + if(!__tmedia_consumer_plugins[i] || (__tmedia_consumer_plugins[i] == plugin)){ + __tmedia_consumer_plugins[i] = plugin; + return 0; + } + } + + TSK_DEBUG_ERROR("There are already %d plugins.", TMED_CONSUMER_MAX_PLUGINS); + return -2; +} + +/**@ingroup tmedia_consumer_group +* UnRegisters a consumer plugin. +* @param plugin the definition of the plugin. +* @retval Zero if succeed and non-zero error code otherwise. +*/ +int tmedia_consumer_plugin_unregister(const tmedia_consumer_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_CONSUMER_MAX_PLUGINS && __tmedia_consumer_plugins[i]; i++){ + if(__tmedia_consumer_plugins[i] == plugin){ + __tmedia_consumer_plugins[i] = tsk_null; + found = tsk_true; + break; + } + } + + /* compact */ + if(found){ + for(; i<(TMED_CONSUMER_MAX_PLUGINS - 1); i++){ + if(__tmedia_consumer_plugins[i+1]){ + __tmedia_consumer_plugins[i] = __tmedia_consumer_plugins[i+1]; + } + else{ + break; + } + } + __tmedia_consumer_plugins[i] = tsk_null; + } + return (found ? 0 : -2); +} + +/**@ingroup tmedia_consumer_group +* UnRegisters all consumers matching the given type. +* @param type the type of the consumers to unregister (e.g. audio|video). +* @retval Zero if succeed and non-zero error code otherwise. +*/ +int tmedia_consumer_plugin_unregister_by_type(tmedia_type_t type) +{ + int i, j; + + /* find the plugin to unregister */ + for (i = 0; i < TMED_CONSUMER_MAX_PLUGINS && __tmedia_consumer_plugins[i]; ) { + if ((__tmedia_consumer_plugins[i]->type & type) == __tmedia_consumer_plugins[i]->type) { + __tmedia_consumer_plugins[i] = tsk_null; + /* compact */ + for (j = i; j < (TMED_CONSUMER_MAX_PLUGINS - 1) && __tmedia_consumer_plugins[j + 1]; ++j) { + __tmedia_consumer_plugins[j] = __tmedia_consumer_plugins[j + 1]; + } + __tmedia_consumer_plugins[j] = tsk_null; + } + else { + ++i; + } + } + return 0; +} |
