| c732d49e |
* 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_bv16.c
* @brief BroadVoice16 codec
* The payloader/depayloader follow RFC 4298
* @author Mamadou Diop <diopmamadou(at)doubango.org>
*
*/
#include "tinydav/codecs/bv/tdav_codec_bv16.h"
#if HAVE_BV16
#if defined(_MSC_VER)
# pragma comment(lib, "..\\thirdparties\\win32\\lib\\BroadVoice16\\libbv16.a")
#endif
#include "tsk_memory.h"
#include "tsk_debug.h"
#include "typedef.h"
#include "bvcommon.h"
#include "bv16cnst.h"
#include "bv16strct.h"
#include "bv16.h"
#include "utility.h"
#if G192BITSTREAM
#include "g192.h"
#else
#include "bitpack.h"
#endif
#include "memutil.h"
/* RFC 4298 - 3.1. BroadVoice16 Bit Stream Definition */
#define TDAV_BV16_FRAME_SIZE 10
#define FRSZ_IN_U8 (FRSZ*2)
/* ============ BV16 Plugin interface ================= */
#define tdav_codec_bv16_sdp_att_get tsk_null
#define tdav_codec_bv16_fmtp_set tsk_null
static int sizestate = sizeof(struct BV16_Encoder_State);
static int sizebitstream = sizeof(struct BV16_Bit_Stream);
int tdav_codec_bv16_open(tmedia_codec_t* self)
{
tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
if(!bv16->encoder.state){
bv16->encoder.state = allocWord16(0, sizestate/2-1);
Reset_BV16_Encoder((struct BV16_Encoder_State*)bv16->encoder.state);
}
if(!bv16->encoder.bs){
bv16->encoder.bs = allocWord16(0, sizebitstream/2-1);
}
if(!bv16->encoder.x){
bv16->encoder.x = allocWord16(0, FRSZ-1);
}
if(!bv16->decoder.state){
bv16->decoder.state = allocWord16(0, sizestate/2-1);
Reset_BV16_Decoder((struct BV16_Decoder_State*)bv16->decoder.state);
}
if(!bv16->decoder.bs){
bv16->decoder.bs = allocWord16(0, sizebitstream/2-1);
}
if(!bv16->decoder.x){
bv16->decoder.x = allocWord16(0, FRSZ-1);
}
return 0;
}
int tdav_codec_bv16_close(tmedia_codec_t* self)
{
tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
if(bv16->encoder.state){
deallocWord16(bv16->encoder.state, 0, sizestate/2-1);
bv16->encoder.state = tsk_null;
}
if(bv16->encoder.bs){
deallocWord16(bv16->encoder.bs, 0, sizebitstream/2-1);
bv16->encoder.bs = tsk_null;
}
if(bv16->encoder.x){
deallocWord16(bv16->encoder.x, 0, FRSZ-1);
bv16->encoder.x = tsk_null;
}
if(bv16->decoder.state){
deallocWord16(bv16->decoder.state, 0, sizestate/2-1);
bv16->decoder.state = tsk_null;
}
if(bv16->encoder.bs){
deallocWord16(bv16->decoder.bs, 0, sizebitstream/2-1);
bv16->decoder.bs = tsk_null;
}
if(bv16->decoder.x){
deallocWord16(bv16->decoder.x, 0, FRSZ-1);
bv16->decoder.x = tsk_null;
}
return 0;
}
tsk_size_t tdav_codec_bv16_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 = 0;
tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
if(!self || !in_data || !in_size || !out_data){
TSK_DEBUG_ERROR("Invalid parameter");
return 0;
}
return 0;
}
tsk_size_t tdav_codec_bv16_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 = 0;
int i;
tdav_codec_bv16_t* bv16 = (tdav_codec_bv16_t*)self;
uint8_t mama[600];
if(!self || !in_data || !in_size || !out_data || (in_size % TDAV_BV16_FRAME_SIZE)){
TSK_DEBUG_ERROR("Invalid parameter");
return 0;
}
for(i=0; i<(int)in_size; i+=TDAV_BV16_FRAME_SIZE){
BV16_BitUnPack(mama, (struct BV16_Bit_Stream*)bv16->decoder.bs);
//BV16_BitUnPack(&((UWord8 *)in_data)[i], (struct BV16_Bit_Stream*)bv16->decoder.bs);
BV16_Decode((struct BV16_Bit_Stream*)bv16->decoder.bs, (struct BV16_Decoder_State*)bv16->decoder.state, bv16->decoder.x);
if(*out_max_size<(out_size + FRSZ_IN_U8)){
if(!(*out_data = tsk_realloc(*out_data, (out_size + FRSZ_IN_U8)))){
TSK_DEBUG_ERROR("Failed to allocate new buffer");
*out_max_size = 0;
return 0;
}
*out_max_size = (out_size + FRSZ_IN_U8);
}
memcpy(&((uint8_t*)* out_data)[out_size], bv16->decoder.x, FRSZ_IN_U8);
out_size += FRSZ_IN_U8;
}
return out_size;
}
tsk_bool_t tdav_codec_bv16_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value)
{ /* always match */
return tsk_true;
}
//
// BV16 Plugin definition
//
/* constructor */
static tsk_object_t* tdav_codec_bv16_ctor(tsk_object_t * self, va_list * app)
{
tdav_codec_bv16_t *bv16 = self;
if(bv16){
/* init base: called by tmedia_codec_create() */
/* init self */
}
return self;
}
/* destructor */
static tsk_object_t* tdav_codec_bv16_dtor(tsk_object_t * self)
{
tdav_codec_bv16_t *bv16 = self;
if(bv16){
/* deinit base */
tmedia_codec_audio_deinit(bv16);
/* deinit self */
}
return self;
}
/* object definition */
static const tsk_object_def_t tdav_codec_bv16_def_s =
{
sizeof(tdav_codec_bv16_t),
tdav_codec_bv16_ctor,
tdav_codec_bv16_dtor,
tmedia_codec_cmp,
};
/* plugin definition*/
static const tmedia_codec_plugin_def_t tdav_codec_bv16_plugin_def_s =
{
&tdav_codec_bv16_def_s,
tmedia_audio,
tmedia_codec_id_bv16,
"BV16",
"BroadVoice16 Rate",
TMEDIA_CODEC_FORMAT_BV16,
tsk_true,
8000, // rate
{ /* audio */
1, // channels
0 // ptime @deprecated
},
/* video */
{0},
tdav_codec_bv16_open,
tdav_codec_bv16_close,
tdav_codec_bv16_encode,
tdav_codec_bv16_decode,
tdav_codec_bv16_sdp_att_match,
tdav_codec_bv16_sdp_att_get,
tdav_codec_bv16_fmtp_set
};
const tmedia_codec_plugin_def_t *tdav_codec_bv16_plugin_def_t = &tdav_codec_bv16_plugin_def_s;
#endif /* HAVE_BV16 */ |