gstreamer/subprojects/gst-plugins-bad/ext/webrtc/transportstream.h

115 lines
4.7 KiB
C

/* GStreamer
* Copyright (C) 2017 Matthew Waters <matthew@centricular.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.
*/
#ifndef __TRANSPORT_STREAM_H__
#define __TRANSPORT_STREAM_H__
#include "fwd.h"
#include <gst/rtp/rtp.h>
#include <gst/webrtc/rtptransceiver.h>
G_BEGIN_DECLS
GType transport_stream_get_type(void);
#define GST_TYPE_WEBRTC_TRANSPORT_STREAM (transport_stream_get_type())
#define TRANSPORT_STREAM(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStream))
#define TRANSPORT_STREAM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStreamClass))
#define TRANSPORT_STREAM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_WEBRTC_TRANSPORT_STREAM,TransportStreamClass))
typedef struct
{
guint8 pt;
guint media_idx;
GstCaps *caps;
} PtMapItem;
typedef struct
{
GstWebRTCRTPTransceiverDirection direction;
guint32 ssrc;
guint media_idx;
char *mid;
char *rid;
GWeakRef rtpjitterbuffer; /* for stats */
} SsrcMapItem;
struct _TransportStream
{
GstObject parent;
guint session_id; /* session_id */
gboolean dtls_client;
gboolean active; /* TRUE if any mline in the bundle/transport is active */
TransportSendBin *send_bin; /* bin containing all the sending transport elements */
TransportReceiveBin *receive_bin; /* bin containing all the receiving transport elements */
GstWebRTCICEStream *stream;
GstWebRTCDTLSTransport *transport;
GArray *ptmap; /* array of PtMapItem's */
GPtrArray *ssrcmap; /* array of SsrcMapItem's */
gboolean output_connected; /* whether receive bin is connected to rtpbin */
guint rtphdrext_id_stream_id;
guint rtphdrext_id_repaired_stream_id;
GstElement *rtxsend;
GstRTPHeaderExtension *rtxsend_stream_id;
GstRTPHeaderExtension *rtxsend_repaired_stream_id;
GstElement *rtxreceive;
GstRTPHeaderExtension *rtxreceive_stream_id;
GstRTPHeaderExtension *rtxreceive_repaired_stream_id;
GstElement *reddec;
GList *fecdecs;
};
struct _TransportStreamClass
{
GstObjectClass parent_class;
};
TransportStream * transport_stream_new (GstWebRTCBin * webrtc,
guint session_id);
int transport_stream_get_pt (TransportStream * stream,
const gchar * encoding_name,
guint media_idx);
int * transport_stream_get_all_pt (TransportStream * stream,
const gchar * encoding_name,
gsize * pt_len);
GstCaps * transport_stream_get_caps_for_pt (TransportStream * stream,
guint pt);
typedef gboolean (*FindSsrcMapFunc) (SsrcMapItem * e1, gconstpointer data);
SsrcMapItem * transport_stream_find_ssrc_map_item (TransportStream * stream,
gconstpointer data,
FindSsrcMapFunc func);
void transport_stream_filter_ssrc_map_item (TransportStream * stream,
gconstpointer data,
FindSsrcMapFunc func);
SsrcMapItem * transport_stream_add_ssrc_map_item (TransportStream * stream,
GstWebRTCRTPTransceiverDirection direction,
guint32 ssrc,
guint media_idx);
G_END_DECLS
#endif /* __TRANSPORT_STREAM_H__ */