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/*
* Copyright (C) 2010-2011 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)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_dtmf.c
* @brief DTMF (RFC 4733) codec plugins.
*
* @author Mamadou Diop <diopmamadou(at)doubango.org>
*
*/
#include "tinydav/codecs/dtmf/tdav_codec_dtmf.h"
#include "tsk_string.h"
#include "tsk_memory.h"
#include "tsk_debug.h"
/* ============ DTMF Plugin interface ================= */
tsk_size_t tdav_codec_dtmf_fmtp_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size)
{
return 0;
}
tsk_size_t tdav_codec_dtmf_fmtp_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)
{
return 0;
}
char* tdav_codec_dtmf_sdp_att_get(const tmedia_codec_t* self, const char* att_name)
{
if(tsk_striequals(att_name, "fmtp")){
return tsk_strdup("0-16");
}
return tsk_null;
}
tsk_bool_t tdav_codec_dtmf_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value)
{ /* always match */
return tsk_true;
}
//
// DTMF Plugin definition
//
/* constructor */
static tsk_object_t* tdav_codec_dtmf_ctor(tsk_object_t * self, va_list * app)
{
tdav_codec_dtmf_t *dtmf = self;
if(dtmf){
/* init base: called by tmedia_codec_create() */
/* init self */
}
return self;
}
/* destructor */
static tsk_object_t* tdav_codec_dtmf_dtor(tsk_object_t * self)
{
tdav_codec_dtmf_t *dtmf = self;
if(dtmf){
/* deinit base */
tmedia_codec_audio_deinit(dtmf);
/* deinit self */
}
return self;
}
/* object definition */
static const tsk_object_def_t tdav_codec_dtmf_def_s =
{
sizeof(tdav_codec_dtmf_t),
tdav_codec_dtmf_ctor,
tdav_codec_dtmf_dtor,
tmedia_codec_cmp,
};
/* plugin definition*/
static const tmedia_codec_plugin_def_t tdav_codec_dtmf_plugin_def_s =
{
&tdav_codec_dtmf_def_s,
tmedia_audio,
tmedia_codec_id_none, // fake codec without real identifier
"telephone-event",
"DTMF Codec (RFC 4733)",
TMEDIA_CODEC_FORMAT_DTMF,
tsk_true,
8000, // rate
{ /* audio */
1, // channels
20 // ptime
},
/* video */
{0},
tsk_null, // set()
tsk_null, // open
tsk_null, // close
tdav_codec_dtmf_fmtp_encode,
tdav_codec_dtmf_fmtp_decode,
tdav_codec_dtmf_sdp_att_match,
tdav_codec_dtmf_sdp_att_get
};
const tmedia_codec_plugin_def_t *tdav_codec_dtmf_plugin_def_t = &tdav_codec_dtmf_plugin_def_s;
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