mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-03 01:02:19 +00:00
87 lines
3 KiB
C
87 lines
3 KiB
C
|
/* RTP Retransmission receiver element for GStreamer
|
||
|
|
*
|
||
|
|
* gstrtprtxreceive.h:
|
||
|
|
*
|
||
|
|
* Copyright (C) 2013 Collabora Ltd.
|
||
|
|
* @author Julien Isorce <julien.isorce@collabora.co.uk>
|
||
|
|
*
|
||
|
|
* 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 __GST_RTP_RTX_RECEIVE_H__
|
||
|
|
#define __GST_RTP_RTX_RECEIVE_H__
|
||
|
|
|
||
|
|
#include <gst/gst.h>
|
||
|
|
#include <gst/rtp/gstrtpbuffer.h>
|
||
|
|
|
||
|
|
G_BEGIN_DECLS
|
||
|
|
#define GST_TYPE_RTP_RTX_RECEIVE (gst_rtp_rtx_receive_get_type())
|
||
|
|
#define GST_RTP_RTX_RECEIVE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceive))
|
||
|
|
#define GST_RTP_RTX_RECEIVE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceiveClass))
|
||
|
|
#define GST_RTP_RTX_RECEIVE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceiveClass))
|
||
|
|
#define GST_IS_RTP_RTX_RECEIVE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_RTX_RECEIVE))
|
||
|
|
#define GST_IS_RTP_RTX_RECEIVE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_RTX_RECEIVE))
|
||
|
|
typedef struct _GstRtpRtxReceive GstRtpRtxReceive;
|
||
|
|
typedef struct _GstRtpRtxReceiveClass GstRtpRtxReceiveClass;
|
||
|
|
|
||
|
|
struct _GstRtpRtxReceive
|
||
|
|
{
|
||
|
|
GstElement element;
|
||
|
|
|
||
|
|
/* pad */
|
||
|
|
GstPad *sinkpad;
|
||
|
|
GstPad *srcpad;
|
||
|
|
|
||
|
|
GMutex lock;
|
||
|
|
|
||
|
|
/* retrieve associated master stream from rtx stream
|
||
|
|
* it also works to retrieve rtx stream from master stream
|
||
|
|
* as we make sure all ssrc are unique */
|
||
|
|
GHashTable *ssrc2_ssrc1_map;
|
||
|
|
|
||
|
|
/* retrieve master payload type from master stream ssrc */
|
||
|
|
GHashTable *ssrc1_payload_type_map;
|
||
|
|
|
||
|
|
/* contains seqnum of request packets of whom their ssrc have
|
||
|
|
* not been associated to a rtx stream yet */
|
||
|
|
GHashTable *seqnum_ssrc1_map;
|
||
|
|
|
||
|
|
/* contains a set of payload type for all retranmission stream
|
||
|
|
* that this element should handle (usually using SDP)
|
||
|
|
* it allow to recognize if the current packet is from a rtx stream
|
||
|
|
* or not. It's not deterministic because several rtx streams can use
|
||
|
|
* the same payload type
|
||
|
|
*/
|
||
|
|
GHashTable *rtx_payload_type_set;
|
||
|
|
|
||
|
|
/* statistics */
|
||
|
|
guint num_rtx_requests;
|
||
|
|
guint num_rtx_packets;
|
||
|
|
guint num_rtx_assoc_packets;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct _GstRtpRtxReceiveClass
|
||
|
|
{
|
||
|
|
GstElementClass parent_class;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
GType gst_rtp_rtx_receive_get_type (void);
|
||
|
|
gboolean gst_rtp_rtx_receive_plugin_init (GstPlugin * plugin);
|
||
|
|
|
||
|
|
G_END_DECLS
|
||
|
|
#endif /* __GST_RTP_RTX_RECEIVE_H__ */
|