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
|
/* GStreamer
* Copyright (C) <2006> Wim Taymans <wim@fluendo.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <string.h>
#include "gstrtspsrc.h"
#include "rtspextwms.h"
#define SERVER_PREFIX "WMServer/"
#define HEADER_PREFIX "data:application/vnd.ms.wms-hdr.asfv1;base64,"
typedef struct _RTSPExtWMSCtx RTSPExtWMSCtx;
struct _RTSPExtWMSCtx
{
RTSPExtensionCtx ctx;
gboolean active;
};
static RTSPResult
rtsp_ext_wms_before_send (RTSPExtensionCtx * ctx, RTSPMessage * request)
{
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
switch (request->type_data.request.method) {
case RTSP_OPTIONS:
{
/* activate ourselves with the first request */
rext->active = TRUE;
break;
}
default:
break;
}
return RTSP_OK;
}
static RTSPResult
rtsp_ext_wms_after_send (RTSPExtensionCtx * ctx, RTSPMessage * req,
RTSPMessage * resp)
{
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
switch (req->type_data.request.method) {
case RTSP_OPTIONS:
{
gchar *server = NULL;
rtsp_message_get_header (resp, RTSP_HDR_SERVER, &server);
if (server && g_str_has_prefix (server, SERVER_PREFIX))
rext->active = TRUE;
else
rext->active = FALSE;
break;
}
default:
break;
}
return RTSP_OK;
}
static RTSPResult
rtsp_ext_wms_parse_sdp (RTSPExtensionCtx * ctx, SDPMessage * sdp)
{
GstRTSPSrc *src = (GstRTSPSrc *) ctx->src;
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
gchar *config, *maxps;
gint i;
if (!rext->active)
return RTSP_OK;
for (i = 0; (config = sdp_message_get_attribute_val_n (sdp, "pgmpu", i)); i++) {
if (g_str_has_prefix (config, HEADER_PREFIX)) {
config += strlen (HEADER_PREFIX);
gst_structure_set (src->props, "config", G_TYPE_STRING, config, NULL);
break;
}
}
if (config == NULL)
goto no_config;
gst_structure_set (src->props, "config", G_TYPE_STRING, config, NULL);
maxps = sdp_message_get_attribute_val (sdp, "maxps");
if (maxps)
gst_structure_set (src->props, "maxps", G_TYPE_STRING, maxps, NULL);
gst_structure_set (src->props, "encoding-name", G_TYPE_STRING, "x-asf-pf",
NULL);
gst_structure_set (src->props, "media", G_TYPE_STRING, "application", NULL);
return RTSP_OK;
/* ERRORS */
no_config:
{
GST_DEBUG_OBJECT (src, "Could not find config SDP field, deactivating.");
rext->active = FALSE;
return RTSP_OK;
}
}
static gboolean
rtsp_ext_wms_configure_stream (RTSPExtensionCtx * ctx, GstRTSPStream * stream)
{
GstRTSPSrc *src = (GstRTSPSrc *) ctx->src;
GstStructure *s;
const gchar *encoding;
s = gst_caps_get_structure (stream->caps, 0);
encoding = gst_structure_get_string (s, "encoding-name");
if (!encoding)
return TRUE;
GST_DEBUG_OBJECT (src, "%" GST_PTR_FORMAT " encoding-name: %s", stream->caps,
encoding);
/* rtx streams do not need to be configured */
if (!strcmp (encoding, "x-wms-rtx"))
return FALSE;
return TRUE;
}
RTSPExtensionCtx *
rtsp_ext_wms_get_context (void)
{
RTSPExtWMSCtx *res;
res = g_new0 (RTSPExtWMSCtx, 1);
res->ctx.parse_sdp = rtsp_ext_wms_parse_sdp;
res->ctx.before_send = rtsp_ext_wms_before_send;
res->ctx.after_send = rtsp_ext_wms_after_send;
res->ctx.configure_stream = rtsp_ext_wms_configure_stream;
return (RTSPExtensionCtx *) res;
}
void
rtsp_ext_wms_free_context (RTSPExtensionCtx * ctx)
{
g_free (ctx);
}
|
