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/* 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;
/* 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;
/* contains seqnum of request packets of whom their ssrc have
* not been associated to a rtx stream yet */
GHashTable *seqnum_ssrc1_map;
/* rtx pt (uint) -> origin pt (uint) */
GHashTable *rtx_pt_map;
/* origin pt (string) -> rtx pt (uint) */
GstStructure *rtx_pt_map_structure;
/* statistics */
guint num_rtx_requests;
guint num_rtx_packets;
guint num_rtx_assoc_packets;
GstClockTime last_time;
};
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__ */
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