1 /* GStreamer
2  * Copyright (C) 2017 Matthew Waters <matthew@centricular.com>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef __TRANSPORT_STREAM_H__
21 #define __TRANSPORT_STREAM_H__
22 
23 #include "fwd.h"
24 #include <gst/webrtc/rtptransceiver.h>
25 
26 G_BEGIN_DECLS
27 
28 GType transport_stream_get_type(void);
29 #define GST_TYPE_WEBRTC_TRANSPORT_STREAM (transport_stream_get_type())
30 #define TRANSPORT_STREAM(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStream))
31 #define TRANSPORT_STREAM_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStreamClass))
32 #define TRANSPORT_STREAM_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStreamClass))
33 
34 typedef struct
35 {
36   guint8 pt;
37   GstCaps *caps;
38 } PtMapItem;
39 
40 typedef struct
41 {
42   guint32 ssrc;
43   guint media_idx;
44 } SsrcMapItem;
45 
46 struct _TransportStream
47 {
48   GstObject                 parent;
49 
50   guint                     session_id;             /* session_id */
51   gboolean                  rtcp;
52   gboolean                  rtcp_mux;
53   gboolean                  rtcp_rsize;
54   gboolean                  dtls_client;
55   TransportSendBin         *send_bin;               /* bin containing all the sending transport elements */
56   TransportReceiveBin      *receive_bin;            /* bin containing all the receiving transport elements */
57   GstWebRTCICEStream       *stream;
58 
59   GstWebRTCDTLSTransport   *transport;
60   GstWebRTCDTLSTransport   *rtcp_transport;
61 
62   GArray                   *ptmap;                  /* array of PtMapItem's */
63   GArray                   *remote_ssrcmap;         /* array of SsrcMapItem's */
64 };
65 
66 struct _TransportStreamClass
67 {
68   GstObjectClass            parent_class;
69 };
70 
71 TransportStream *       transport_stream_new        (GstWebRTCBin * webrtc,
72                                                      guint session_id);
73 int                     transport_stream_get_pt     (TransportStream * stream,
74                                                      const gchar * encoding_name);
75 GstCaps *               transport_stream_get_caps_for_pt    (TransportStream * stream,
76                                                              guint pt);
77 
78 G_END_DECLS
79 
80 #endif /* __TRANSPORT_STREAM_H__ */
81