#if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*

 * 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 tdav_codec_gsm.c
  * @brief GSM Full Rate Codec (Based on libgsm)
  *
  * @author Mamadou Diop <diopmamadou(at)doubango.org>
  *
 
  */
 #include "tinydav/codecs/gsm/tdav_codec_gsm.h"
 
 #if HAVE_LIBGSM
 
 #include "tsk_string.h"
 #include "tsk_memory.h"
 #include "tsk_debug.h"
 
 #define TDAV_GSM_FRAME_SIZE			33
 
 /* ============ GSM Plugin interface ================= */
 
 #define tdav_codec_gsm_sdp_att_get tsk_null
 
 int tdav_codec_gsm_open(tmedia_codec_t* self)
 {
 	tdav_codec_gsm_t* gsm = (tdav_codec_gsm_t*)self;
 	
 	if(!gsm->encoder && !(gsm->encoder = gsm_create())){
 		TSK_DEBUG_ERROR("Failed to create GSM encoder");
 		return -2;
 	}
 	if(!gsm->decoder && !(gsm->decoder = gsm_create())){
 		TSK_DEBUG_ERROR("Failed to create GSM decoder");
 		return -3;
 	}
 
 	return 0;
 }
 
 int tdav_codec_gsm_close(tmedia_codec_t* self)
 {
 	tdav_codec_gsm_t* gsm = (tdav_codec_gsm_t*)self;
 
 	if(gsm->encoder){
 		gsm_destroy(gsm->encoder);
 		gsm->encoder = tsk_null;
 	}
 	if(gsm->decoder){
 		gsm_destroy(gsm->decoder);
 		gsm->decoder = tsk_null;
 	}
 
 	return 0;
 }
 
 tsk_size_t tdav_codec_gsm_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size)
 {	
 	tsk_size_t out_size;
 	tdav_codec_gsm_t* gsm = (tdav_codec_gsm_t*)self;
 
 	if(!self || !in_data || !in_size || !out_data){
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return 0;
 	}
 
 	out_size = ((in_size / (TMEDIA_CODEC_PCM_FRAME_SIZE_AUDIO_ENCODING(self) * sizeof(short))) * TDAV_GSM_FRAME_SIZE);
 
 	/* allocate new buffer if needed */
 	if(*out_max_size <out_size){
 		if(!(*out_data = tsk_realloc(*out_data, out_size))){
 			TSK_DEBUG_ERROR("Failed to allocate new buffer");
 			*out_max_size = 0;
 			return 0;
 		}
 		*out_max_size = out_size;
 	}
 
 	gsm_encode(gsm->encoder, (gsm_signal*)in_data, (gsm_byte*)*out_data);
 
 	return out_size;
 }
 
 tsk_size_t tdav_codec_gsm_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr)
 {
 	tsk_size_t out_size;
 	int ret;
 	tdav_codec_gsm_t* gsm = (tdav_codec_gsm_t*)self;
 
 	if(!self || !in_data || !in_size || !out_data || (in_size % TDAV_GSM_FRAME_SIZE)){
 		TSK_DEBUG_ERROR("Invalid parameter");
 		return 0;
 	}
 	
 	out_size = (in_size / TDAV_GSM_FRAME_SIZE) * (TMEDIA_CODEC_PCM_FRAME_SIZE_AUDIO_DECODING(self) * sizeof(short));
 
 	/* allocate new buffer if needed */
 	if(*out_max_size <out_size){
 		if(!(*out_data = tsk_realloc(*out_data, out_size))){
 			TSK_DEBUG_ERROR("Failed to allocate new buffer");
 			*out_max_size = 0;
 			return 0;
 		}
 		*out_max_size = out_size;
 	}
 
 	ret = gsm_decode(gsm->decoder, (gsm_byte*)in_data, (gsm_signal*)*out_data);
 
 	return out_size;
 }
 
 tsk_bool_t tdav_codec_gsm_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value)
 {	/* always match */
 	return tsk_true;
 }
 
 
 //
 //	GSM Plugin definition
 //
 
 /* constructor */
 static tsk_object_t* tdav_codec_gsm_ctor(tsk_object_t * self, va_list * app)
 {
 	tdav_codec_gsm_t *gsm = self;
 	if(gsm){
 		/* init base: called by tmedia_codec_create() */
 		/* init self */
 	}
 	return self;
 }
 /* destructor */
 static tsk_object_t* tdav_codec_gsm_dtor(tsk_object_t * self)
 { 
 	tdav_codec_gsm_t *gsm = self;
 	if(gsm){
 		/* deinit base */
 		tmedia_codec_audio_deinit(gsm);
 		/* deinit self */
 		if(gsm->encoder){
 			gsm_destroy(gsm->encoder);
 		}
 		if(gsm->decoder){
 			gsm_destroy(gsm->decoder);
 		}
 	}
 
 	return self;
 }
 /* object definition */
 static const tsk_object_def_t tdav_codec_gsm_def_s = 
 {
 	sizeof(tdav_codec_gsm_t),
 	tdav_codec_gsm_ctor, 
 	tdav_codec_gsm_dtor,
 	tmedia_codec_cmp, 
 };
 /* plugin definition*/
 static const tmedia_codec_plugin_def_t tdav_codec_gsm_plugin_def_s = 
 {
 	&tdav_codec_gsm_def_s,
 
 	tmedia_audio,
 	tmedia_codec_id_gsm,
 	"GSM",
 	"GSM Full Rate (libgsm)",
 	TMEDIA_CODEC_FORMAT_GSM,
 	tsk_false,
 	8000, // rate
 	
 	{ /* audio */
 		1, // channels
 		0 // ptime @deprecated
 	},
 
 	/* video */
 	{0},
 
 	tsk_null, // set()
 	tdav_codec_gsm_open,
 	tdav_codec_gsm_close,
 	tdav_codec_gsm_encode,
 	tdav_codec_gsm_decode,
 	tdav_codec_gsm_sdp_att_match,
 	tdav_codec_gsm_sdp_att_get
 };
 const tmedia_codec_plugin_def_t *tdav_codec_gsm_plugin_def_t = &tdav_codec_gsm_plugin_def_s;
 
 
 #endif /* HAVE_LIBGSM */