/*

 * Copyright (C) 2020, University of the Basque Country (UPV/EHU)

 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://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_producer.h
  * @brief Base producer object.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #ifndef TINYMEDIA_PRODUCER_H
 #define TINYMEDIA_PRODUCER_H
 
 #include "tinymedia_config.h"
 
 #include "tinymedia/tmedia_codec.h"
 #include "tinymedia/tmedia_params.h"
 #include "tmedia_common.h"
 
 TMEDIA_BEGIN_DECLS
 
 #define TMEDIA_PRODUCER_BITS_PER_SAMPLE_DEFAULT		16
 #define TMEDIA_PRODUCER_CHANNELS_DEFAULT			2
 #define TMEDIA_PRODUCER_RATE_DEFAULT				8000
 
 /**Max number of plugins (producer types) we can create */
 #define TMED_PRODUCER_MAX_PLUGINS			0x0F
 
 /** cast any pointer to @ref tmedia_producer_t* object */
 #define TMEDIA_PRODUCER(self)		((tmedia_producer_t*)(self))
 
 typedef int (*tmedia_producer_enc_cb_f)(const void* callback_data, const void* buffer, tsk_size_t size);
 typedef int (*tmedia_producer_raw_cb_f)(const tmedia_video_encode_result_xt* chunck);
 
 /**  Default Video chroma */
 #define TMEDIA_PRODUCER_CHROMA_DEFAULT tmedia_chroma_yuv420p
 
 /** Base object for all Producers */
 typedef struct tmedia_producer_s
 {
 	TSK_DECLARE_OBJECT;
 	
 	tmedia_type_t type;
 	const char* desc;
 
 	struct{
 		tmedia_chroma_t chroma;
 		int fps;
 		int rotation;
 		tsk_bool_t mirror;
 		tsk_size_t width;
 		tsk_size_t height;
 	} video;
 
 	struct{
 		uint8_t bits_per_sample;
 		uint8_t channels;
 		uint32_t rate;
 		uint8_t ptime;
 		uint8_t gain;
 		int32_t volume;
 	} audio;
 
 	const struct tmedia_producer_plugin_def_s* plugin;
 
 	tsk_bool_t is_prepared;
 	tsk_bool_t is_started;
 	uint64_t session_id;
 
 	struct{
 		enum tmedia_codec_id_e codec_id;
 		// other options to be added
 	} encoder;
 
 	struct{
 		tmedia_producer_enc_cb_f callback;
 		const void* callback_data;
 	} enc_cb;
 
 	struct{
 		tmedia_producer_raw_cb_f callback;
 		tmedia_video_encode_result_xt chunck_curr;
 	} raw_cb;
 }
 tmedia_producer_t;
 
 /** Virtual table used to define a producer plugin */
 typedef struct tmedia_producer_plugin_def_s
 {
 	//! object definition used to create an instance of the producer
 	const tsk_object_def_t* objdef;
 	
 	//! the type of the producer
 	tmedia_type_t type;
 	//! full description (usefull for debugging)
 	const char* desc;
 
 	int (*set) (tmedia_producer_t* , const tmedia_param_t*);
 	int (* prepare) (tmedia_producer_t* , const tmedia_codec_t*);
 	int (* start) (tmedia_producer_t* );
 	int (* pause) (tmedia_producer_t* );
 	int (* stop) (tmedia_producer_t* );
 }
 tmedia_producer_plugin_def_t;
 
 #define TMEDIA_DECLARE_PRODUCER tmedia_producer_t __producer__
 
 TINYMEDIA_API tmedia_producer_t* tmedia_producer_create(tmedia_type_t type, uint64_t session_id);
 TINYMEDIA_API int tmedia_producer_init(tmedia_producer_t* self);
 TINYMEDIA_API int tmedia_producer_set_enc_callback(tmedia_producer_t *self, tmedia_producer_enc_cb_f callback, const void* callback_data);
 TINYMEDIA_API int tmedia_producer_set_raw_callback(tmedia_producer_t *self, tmedia_producer_raw_cb_f callback, const void* callback_data);
 TINYMEDIA_API int tmedia_producer_set(tmedia_producer_t* self, const tmedia_param_t* param);
 TINYMEDIA_API int tmedia_producer_prepare(tmedia_producer_t *self, const tmedia_codec_t* codec);
 TINYMEDIA_API int tmedia_producer_start(tmedia_producer_t *self);
 TINYMEDIA_API int tmedia_producer_pause(tmedia_producer_t *self);
 TINYMEDIA_API int tmedia_producer_stop(tmedia_producer_t *self);
 TINYMEDIA_API int tmedia_producer_deinit(tmedia_producer_t* self);
 
 TINYMEDIA_API int tmedia_producer_plugin_register(const tmedia_producer_plugin_def_t* plugin);
 TINYMEDIA_API int tmedia_producer_plugin_unregister(const tmedia_producer_plugin_def_t* plugin);
 TINYMEDIA_API int tmedia_producer_plugin_unregister_by_type(tmedia_type_t type);
 
 TMEDIA_END_DECLS
 
 #endif /* TINYMEDIA_PRODUCER_H */