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
|
/* GStreamer
* Copyright (C) 2017, Collabora Ltd.
* Author:Justin Kim <justin.kim@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstsrt.h"
#include "gstsrtclientsrc.h"
#include "gstsrtserversrc.h"
#include "gstsrtclientsink.h"
#include "gstsrtserversink.h"
#define GST_CAT_DEFAULT gst_debug_srt
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
SRTSOCKET
gst_srt_client_connect_full (GstElement * elem, int sender,
const gchar * host, guint16 port, int rendez_vous,
const gchar * bind_address, guint16 bind_port, int latency,
GSocketAddress ** socket_address, gint * poll_id, gchar * passphrase,
int key_length)
{
SRTSOCKET sock = SRT_INVALID_SOCK;
GError *error = NULL;
gpointer sa;
size_t sa_len;
*socket_address = g_inet_socket_address_new_from_string (host, port);
if (*socket_address == NULL) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ, ("Invalid host"),
("Failed to parse host"));
goto failed;
}
sa_len = g_socket_address_get_native_size (*socket_address);
sa = g_alloca (sa_len);
if (!g_socket_address_to_native (*socket_address, sa, sa_len, &error)) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ, ("Invalid address"),
("cannot resolve address (reason: %s)", error->message));
goto failed;
}
sock = srt_socket (g_socket_address_get_family (*socket_address), SOCK_DGRAM,
0);
if (sock == SRT_ERROR) {
GST_ELEMENT_ERROR (elem, LIBRARY, INIT, (NULL),
("failed to create SRT socket (reason: %s)", srt_getlasterror_str ()));
goto failed;
}
/* Make sure TSBPD mode is enable (SRT mode) */
srt_setsockopt (sock, 0, SRTO_TSBPDMODE, &(int) {
1}, sizeof (int));
/* This is a sink, we're always a receiver */
srt_setsockopt (sock, 0, SRTO_SENDER, &sender, sizeof (int));
srt_setsockopt (sock, 0, SRTO_TSBPDDELAY, &latency, sizeof (int));
srt_setsockopt (sock, 0, SRTO_RENDEZVOUS, &rendez_vous, sizeof (int));
if (passphrase != NULL && passphrase[0] != '\0') {
srt_setsockopt (sock, 0, SRTO_PASSPHRASE, passphrase, strlen (passphrase));
srt_setsockopt (sock, 0, SRTO_PBKEYLEN, &key_length, sizeof (int));
}
if (bind_address || bind_port || rendez_vous) {
gpointer bsa;
size_t bsa_len;
GSocketAddress *b_socket_address = NULL;
if (bind_address == NULL)
bind_address = "0.0.0.0";
if (rendez_vous)
bind_port = port;
b_socket_address = g_inet_socket_address_new_from_string (bind_address,
bind_port);
if (b_socket_address == NULL) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ, ("Invalid bind address"),
("Failed to parse bind address: %s:%d", bind_address, bind_port));
goto failed;
}
bsa_len = g_socket_address_get_native_size (b_socket_address);
bsa = g_alloca (bsa_len);
if (!g_socket_address_to_native (b_socket_address, bsa, bsa_len, &error)) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ, ("Invalid bind address"),
("Can't parse bind address to sockaddr: %s", error->message));
g_clear_object (&b_socket_address);
goto failed;
}
g_clear_object (&b_socket_address);
if (srt_bind (sock, bsa, bsa_len) == SRT_ERROR) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ,
("Can't bind to address"),
("Can't bind to %s:%d (reason: %s)", bind_address, bind_port,
srt_getlasterror_str ()));
goto failed;
}
}
*poll_id = srt_epoll_create ();
if (*poll_id == -1) {
GST_ELEMENT_ERROR (elem, LIBRARY, INIT, (NULL),
("failed to create poll id for SRT socket (reason: %s)",
srt_getlasterror_str ()));
goto failed;
}
srt_epoll_add_usock (*poll_id, sock, &(int) {
SRT_EPOLL_OUT});
if (srt_connect (sock, sa, sa_len) == SRT_ERROR) {
GST_ELEMENT_ERROR (elem, RESOURCE, OPEN_READ, ("Connection error"),
("failed to connect to host (reason: %s)", srt_getlasterror_str ()));
goto failed;
}
return sock;
failed:
if (*poll_id != SRT_ERROR) {
srt_epoll_release (*poll_id);
*poll_id = SRT_ERROR;
}
if (sock != SRT_INVALID_SOCK) {
srt_close (sock);
sock = SRT_INVALID_SOCK;
}
g_clear_error (&error);
g_clear_object (socket_address);
return SRT_INVALID_SOCK;
}
SRTSOCKET
gst_srt_client_connect (GstElement * elem, int sender,
const gchar * host, guint16 port, int rendez_vous,
const gchar * bind_address, guint16 bind_port, int latency,
GSocketAddress ** socket_address, gint * poll_id)
{
return gst_srt_client_connect_full (elem, sender, host, port,
rendez_vous, bind_address, bind_port, latency, socket_address, poll_id,
NULL, 0);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "srt", 0, "SRT Common code");
if (!gst_element_register (plugin, "srtclientsrc", GST_RANK_PRIMARY,
GST_TYPE_SRT_CLIENT_SRC))
return FALSE;
if (!gst_element_register (plugin, "srtserversrc", GST_RANK_PRIMARY,
GST_TYPE_SRT_SERVER_SRC))
return FALSE;
if (!gst_element_register (plugin, "srtclientsink", GST_RANK_PRIMARY,
GST_TYPE_SRT_CLIENT_SINK))
return FALSE;
if (!gst_element_register (plugin, "srtserversink", GST_RANK_PRIMARY,
GST_TYPE_SRT_SERVER_SINK))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
srt,
"transfer data via SRT",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
|
