1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
/*
* 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_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 */
|
