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
|
/*
* Copyright (C) 2009-2010 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 tmedia_common.c
* @brief Common functions and definitions.
*
* @author Mamadou Diop <diopmamadou(at)doubango.org>
*
* @date Created: Sat Nov 8 16:54:58 2009 mdiop
*/
#include "tinymedia/tmedia_common.h"
#include "tinymedia/tmedia_session.h"
#include "tsk_debug.h"
#include <stdlib.h> /* atoi() */
tmedia_type_t tmedia_type_from_sdp(const tsdp_message_t* sdp)
{
tmedia_type_t type = tmedia_none;
const tsdp_header_M_t* M;
tsk_size_t index = 0;
const tmedia_session_plugin_def_t* plugin;
if(!sdp){
TSK_DEBUG_ERROR("Invalid parameter");
return tmedia_none;
}
while((M = (const tsdp_header_M_t*)tsdp_message_get_headerAt(sdp, tsdp_htype_M, index++))){
if(M->port && (plugin = tmedia_session_plugin_find_by_media(M->media))){
type |= plugin->type;
}
}
return type;
}
int tmedia_parse_rtpmap(const char* rtpmap, char** name, int32_t* rate, int32_t* channels)
{
/* e.g. AMR-WB/16000/2 */
int len;
int index, pos = 0;
if(tsk_strnullORempty(rtpmap)){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
*name = tsk_null;
*rate = *channels = 0;
len = tsk_strlen(rtpmap);
/* name */
if((index = tsk_strindexOf(rtpmap, len, "/")) != -1){
*name = tsk_strndup(rtpmap, index);
len -= (index + 1), pos = (index + 1);
/* rate */
if(len>0){
if((index = tsk_strindexOf((rtpmap + pos), len, "/")) != -1){
*rate = atoi(&rtpmap[pos]);
len -= (index + 1), pos += (index + 1);
/* channels */
if(len>0){
*channels = atoi(&rtpmap[pos]);
}
}
else{
*rate = atoi(&rtpmap[pos]);
}
}
}
else{
*name = tsk_strdup(rtpmap);
}
return 0;
///* e.g. AMR-WB/16000/2 */
//if(sscanf(rtpmap, "%*s/%*d/%*d") != EOF){
// int index = tsk_strindexOf(rtpmap, len, "/");
// *name = tsk_strndup(rtpmap, index);
// sscanf(&rtpmap[index+1], "%d/%d", rate, channels);
// return 0;
//}
///* e.g. AMR-WB/16000 */
//else if(sscanf(rtpmap, "%*s/%*d") != EOF){
// int index = tsk_strindexOf(rtpmap, len, "/");
// *name = tsk_strndup(rtpmap, index);
// *rate = atoi(&rtpmap[index+1]);
// return 0;
//}
///* e.g. AMR-WB */
//else if(sscanf(rtpmap, "%*s") != EOF){
// *name = tsk_strdup(rtpmap);
// return 0;
//}
//else{
// TSK_DEBUG_ERROR("%s is not a valid rtpmap value", rtpmap);
// return -2;
//}
}
static const tmedia_video_size_t tmedia_video_sizes[] =
{
{tmedia_vst_none , 176, 144},
{tmedia_vst_sqcif, 128, 96},
{tmedia_vst_qcif, 176, 144},
{tmedia_vst_qvga, 320, 240},
{tmedia_vst_cif, 352, 288},
{tmedia_vst_vga, 640, 480},
{tmedia_vst_4cif, 704, 576},
{tmedia_vst_svga, 800, 600},
{tmedia_vst_xga, 1024, 768},
{tmedia_vst_sxga, 1280, 1024},
{tmedia_vst_16cif, 1408, 1152},
{tmedia_vst_hd720p, 1280, 720},
{tmedia_vst_hd1080p, 1920, 1080},
{tmedia_vst_ios_low, 200, 152},
{tmedia_vst_ios_high, 400, 304},
};
const tmedia_video_size_t* tmedia_get_video_size(tmedia_chroma_t chroma, tsk_size_t size)
{
float factor = 3.f;
tsk_size_t i;
switch(chroma)
{
case tmedia_rgb24:
case tmedia_bgr24:
factor = 3.f;
break;
case tmedia_rgb565le:
case tmedia_rgb565be:
factor = 2.f;
break;
case tmedia_rgb32:
factor = 4.f;
break;
case tmedia_nv21:
case tmedia_nv12:
case tmedia_yuv420p:
factor = 1.5f;
break;
case tmedia_yuv422p:
case tmedia_uyvy422:
factor = 2.f;
break;
}
for(i = 1; i< sizeof(tmedia_video_sizes)/sizeof(tmedia_video_size_t); i++){
if((((float)(tmedia_video_sizes[i].width * tmedia_video_sizes[i].height)) * factor) == size){
return &tmedia_video_sizes[i];
}
}
return &tmedia_video_sizes[0];;
}
|
