#if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*
 * Copyright (C) 2017, 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.
 *
 */
 
 #include "tinydav/audio/tdav_speex_resampler.h"
 
 #if HAVE_SPEEX_DSP && (!defined(HAVE_SPEEX_RESAMPLER) || HAVE_SPEEX_RESAMPLER)
 
 #include <speex/speex_resampler.h>
 
 #include "tsk_memory.h"
 #include "tsk_debug.h"
 
 #define TDAV_SPEEX_RESAMPLER_MAX_QUALITY 10
 
 /** Speex resampler*/
 typedef struct tdav_speex_resampler_s
 {
 	TMEDIA_DECLARE_RESAMPLER;
 
 	tsk_size_t in_size;
 	tsk_size_t out_size;
 	uint32_t in_channels;
 	uint32_t out_channels;
 	uint32_t bytes_per_sample;
 
 	struct{
 		void* ptr;
 		tsk_size_t size_in_samples;
 	} tmp_buffer;
 
 	SpeexResamplerState *state;
 }
 tdav_speex_resampler_t;
 
 static int tdav_speex_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)
 {
 	tdav_speex_resampler_t *resampler = (tdav_speex_resampler_t *)self;
 	int ret = 0;
 	uint32_t bytes_per_sample = (bits_per_sample >> 3);
 
 	if (in_channels != 1 && in_channels != 2) {
 		TSK_DEBUG_ERROR("%d not valid as input channel", in_channels);
 		return -1;
 	}
 	if (out_channels != 1 && out_channels != 2) {
 		TSK_DEBUG_ERROR("%d not valid as output channel", out_channels);
 		return -1;
 	}
 	if (bytes_per_sample != sizeof(spx_int16_t) && bytes_per_sample != sizeof(float)) {
 		TSK_DEBUG_ERROR("%d not valid as bits_per_sample", bits_per_sample);
 		return -1;
 	}
 
 	if (!(resampler->state = speex_resampler_init(in_channels, in_freq, out_freq, TSK_CLAMP(0, quality, TDAV_SPEEX_RESAMPLER_MAX_QUALITY), &ret))) {
 		TSK_DEBUG_ERROR("speex_resampler_init() returned %d", ret);
 		return -2;
 	}
 
 	resampler->bytes_per_sample = bytes_per_sample;
 	resampler->in_size = ((in_freq * frame_duration) / 1000) << (in_channels == 2 ? 1 : 0);
 	resampler->out_size = ((out_freq * frame_duration) / 1000) << (out_channels == 2 ? 1 : 0);
 	resampler->in_channels = in_channels;
 	resampler->out_channels = out_channels;
 
 	if (in_channels != out_channels) {
 		resampler->tmp_buffer.size_in_samples = ((TSK_MAX(in_freq, out_freq) * frame_duration) / 1000) << (TSK_MAX(in_channels, out_channels) == 2 ? 1 : 0);
 		if (!(resampler->tmp_buffer.ptr = tsk_realloc(resampler->tmp_buffer.ptr, resampler->tmp_buffer.size_in_samples * resampler->bytes_per_sample))) {
 			resampler->tmp_buffer.size_in_samples = 0;
 			return -2;
 		}
 	}
 
 	return 0;
 }
 
 
 static tsk_size_t tdav_speex_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)
 {
 	tdav_speex_resampler_t *resampler = (tdav_speex_resampler_t *)self;
 	int err = RESAMPLER_ERR_SUCCESS;
 	spx_uint32_t _out_size_in_sample = (spx_uint32_t)out_size_in_sample;
 	if (!resampler->state || !out_data) {
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return 0;
 	}
 
 	if (in_size_in_sample != resampler->in_size) {
 		TSK_DEBUG_ERROR("Input data has wrong size");
 		return 0;
 	}
 
 	if (out_size_in_sample < resampler->out_size) {
 		TSK_DEBUG_ERROR("Output data is too short");
 		return 0;
 	}
 
 	if (resampler->in_channels == resampler->out_channels) {
 		if (resampler->bytes_per_sample == sizeof(spx_int16_t)) {
 			err = speex_resampler_process_int(resampler->state, 0,
 				(const spx_int16_t *)in_data, (spx_uint32_t *)&in_size_in_sample,
 				(spx_int16_t *)out_data, &_out_size_in_sample);
 		}
 		else {
 			err = speex_resampler_process_float(resampler->state, 0,
 				(const float *)in_data, (spx_uint32_t *)&in_size_in_sample,
 				(float *)out_data, &_out_size_in_sample);
 		}
 	}
 	else {
 		spx_uint32_t i, j;
 		// in_channels = 1, out_channels = 2
 		if (resampler->in_channels == 1) {
 			if (resampler->bytes_per_sample == sizeof(spx_int16_t)) {
 				err = speex_resampler_process_int(resampler->state, 0, (const spx_int16_t *)in_data, (spx_uint32_t *)&in_size_in_sample, resampler->tmp_buffer.ptr, &_out_size_in_sample);
 				if (err == RESAMPLER_ERR_SUCCESS) {
 					spx_int16_t* pout_data = (spx_int16_t*)(out_data);
 					for (i = 0, j = 0; i < _out_size_in_sample; ++i, j += 2) {
 						pout_data[j] = pout_data[j + 1] = *(((const spx_int16_t*)resampler->tmp_buffer.ptr) + i);
 					}
 				}
 			}
 			else {
 				err = speex_resampler_process_float(resampler->state, 0, (const float *)in_data, (spx_uint32_t *)&in_size_in_sample, resampler->tmp_buffer.ptr, &_out_size_in_sample);
 				if (err == RESAMPLER_ERR_SUCCESS) {
 					float* pout_data = (float*)(out_data);
 					for (i = 0, j = 0; i < _out_size_in_sample; ++i, j += 2) {
 						pout_data[j] = pout_data[j + 1] = *(((const float*)resampler->tmp_buffer.ptr) + i);
 					}
 				}
 			}
 
 		}
 		else {
 			// in_channels = 2, out_channels = 1
 			spx_uint32_t _out_size2_in_sample = (_out_size_in_sample << 1);
 			if (resampler->bytes_per_sample == sizeof(spx_int16_t)) {
 				err = speex_resampler_process_int(resampler->state, 0,
 					(const spx_int16_t *)in_data, (spx_uint32_t *)&in_size_in_sample,
 					(spx_int16_t *)resampler->tmp_buffer.ptr, &_out_size2_in_sample);
 				if (err == RESAMPLER_ERR_SUCCESS) {
 					spx_int16_t* pout_data = (spx_int16_t*)(out_data);
 					_out_size_in_sample = (spx_uint32_t)resampler->out_size;
 					for (i = 0, j = 0; j < _out_size2_in_sample; ++i, j += 2) {
 						pout_data[i] = *(((const spx_int16_t*)resampler->tmp_buffer.ptr) + j);
 					}
 				}
 			}
 			else {
 				err = speex_resampler_process_float(resampler->state, 0,
 					(const float *)in_data, (spx_uint32_t *)&in_size_in_sample,
 					(float *)resampler->tmp_buffer.ptr, &_out_size2_in_sample);
 				if (err == RESAMPLER_ERR_SUCCESS) {
 					float* pout_data = (float*)(out_data);
 					for (i = 0, j = 0; j < _out_size2_in_sample; ++i, j += 2) {
 						pout_data[i] = *(((const float*)resampler->tmp_buffer.ptr) + j);
 					}
 				}
 			}
 		}
 	}
 
 	if (err != RESAMPLER_ERR_SUCCESS) {
 		TSK_DEBUG_ERROR("speex_resampler_process_int() failed with error code %d", err);
 		return 0;
 	}
 	return (tsk_size_t)_out_size_in_sample;
 }
 
 static int tdav_speex_resampler_close(tmedia_resampler_t* self)
 {
 	tdav_speex_resampler_t *resampler = (tdav_speex_resampler_t *)self;
 
 	if (resampler->state) {
 		speex_resampler_destroy(resampler->state);
 		resampler->state = tsk_null;
 	}
 	return 0;
 }
 
 
 
 //
 //	Speex resamplerr Plugin definition
 //
 
 /* constructor */
 static tsk_object_t* tdav_speex_resampler_ctor(tsk_object_t * self, va_list * app)
 {
 	tdav_speex_resampler_t *resampler = (tdav_speex_resampler_t *)self;
 	if (resampler){
 		/* init base */
 		tmedia_resampler_init(TMEDIA_RESAMPLER(resampler));
 		/* init self */
 	}
 	return self;
 }
 /* destructor */
 static tsk_object_t* tdav_speex_resampler_dtor(tsk_object_t * self)
 {
 	tdav_speex_resampler_t *resampler = (tdav_speex_resampler_t *)self;
 	if (resampler){
 		/* deinit base */
 		tmedia_resampler_deinit(TMEDIA_RESAMPLER(resampler));
 		/* deinit self */
 		if (resampler->state) {
 			speex_resampler_destroy(resampler->state);
 			resampler->state = tsk_null;
 		}
 		TSK_FREE(resampler->tmp_buffer.ptr);
 
 		TSK_DEBUG_INFO("*** SpeexDSP resampler (plugin) destroyed ***");
 	}
 
 	return self;
 }
 /* object definition */
 static const tsk_object_def_t tdav_speex_resampler_def_s =
 {
 	sizeof(tdav_speex_resampler_t),
 	tdav_speex_resampler_ctor,
 	tdav_speex_resampler_dtor,
 	tsk_null,
 };
 /* plugin definition*/
 static const tmedia_resampler_plugin_def_t tdav_speex_resampler_plugin_def_s =
 {
 	&tdav_speex_resampler_def_s,
 
 	"Audio Resampler based on Speex",
 
 	tdav_speex_resampler_open,
 	tdav_speex_resampler_process,
 	tdav_speex_resampler_close,
 };
 const tmedia_resampler_plugin_def_t *tdav_speex_resampler_plugin_def_t = &tdav_speex_resampler_plugin_def_s;
 
 
 #endif /* HAVE_SPEEX_DSP */