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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]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_resampler.h
* @brief Audio Resampler Plugin
*
* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
*/
#ifndef TINYMEDIA_RESAMPLER_H
#define TINYMEDIA_RESAMPLER_H
#include "tinymedia_config.h"
#include "tsk_object.h"
#ifndef TMEDIA_RESAMPLER_QUALITY
# define TMEDIA_RESAMPLER_QUALITY 5
#endif
TMEDIA_BEGIN_DECLS
/** cast any pointer to @ref tmedia_resampler_t* object */
#define TMEDIA_RESAMPLER(self) ((tmedia_resampler_t*)(self))
/** Base object for all resamplers */
typedef struct tmedia_resampler_s
{
TSK_DECLARE_OBJECT;
tsk_bool_t opened;
const struct tmedia_resampler_plugin_def_s* plugin;
}
tmedia_resampler_t;
#define TMEDIA_DECLARE_RESAMPLER tmedia_resampler_t __resampler__
/** Virtual table used to define a consumer plugin */
typedef struct tmedia_resampler_plugin_def_s
{
//! object definition used to create an instance of the resamplerr
const tsk_object_def_t* objdef;
//! full description (usefull for debugging)
const char* desc;
// ! quality is from 0-10
int (* open) (tmedia_resampler_t* self, uint32_t in_freq, uint32_t out_freq, uint32_t frame_duration, uint32_t in_channels, uint32_t out_channels, uint32_t quality, uint32_t bits_per_sample);
tsk_size_t (* process) (tmedia_resampler_t*, const void* in_data, tsk_size_t in_size_in_sample, void* out_data, tsk_size_t out_size_in_sample);
int (* close) (tmedia_resampler_t* );
}
tmedia_resampler_plugin_def_t;
TINYMEDIA_API int tmedia_resampler_init(tmedia_resampler_t* self);
TINYMEDIA_API int tmedia_resampler_open(tmedia_resampler_t* self, uint32_t in_freq, uint32_t out_freq, uint32_t frame_duration, uint32_t in_channels, uint32_t out_channels, uint32_t quality, uint32_t bits_per_sample);
TINYMEDIA_API tsk_size_t tmedia_resampler_process(tmedia_resampler_t* self, const void* in_data, tsk_size_t in_size_in_sample, void* out_data, tsk_size_t out_size_in_sample);
TINYMEDIA_API int tmedia_resampler_close(tmedia_resampler_t* self);
TINYMEDIA_API int tmedia_resampler_deinit(tmedia_resampler_t* self);
TINYMEDIA_API int tmedia_resampler_plugin_register(const tmedia_resampler_plugin_def_t* plugin);
TINYMEDIA_API int tmedia_resampler_plugin_unregister(const tmedia_resampler_plugin_def_t* plugin);
TINYMEDIA_API tmedia_resampler_t* tmedia_resampler_create();
TMEDIA_END_DECLS
#endif /* TINYMEDIA_RESAMPLER_H */
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