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6f57199958
Mirroring the rtxsend, this allows the application to "pre-map" the retransmission-ssrcs to the "real" ssrc, if this information is known. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1878>
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* RTP Retransmission receiver element for GStreamer
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*
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* gstrtprtxreceive.h:
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*
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* Copyright (C) 2013 Collabora Ltd.
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* @author Julien Isorce <julien.isorce@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_RTP_RTX_RECEIVE_H__
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#define __GST_RTP_RTX_RECEIVE_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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G_BEGIN_DECLS
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typedef struct _GstRtpRtxReceive GstRtpRtxReceive;
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typedef struct _GstRtpRtxReceiveClass GstRtpRtxReceiveClass;
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#define GST_TYPE_RTP_RTX_RECEIVE (gst_rtp_rtx_receive_get_type())
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#define GST_RTP_RTX_RECEIVE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceive))
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#define GST_RTP_RTX_RECEIVE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceiveClass))
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#define GST_RTP_RTX_RECEIVE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_RTX_RECEIVE, GstRtpRtxReceiveClass))
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#define GST_IS_RTP_RTX_RECEIVE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_RTX_RECEIVE))
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#define GST_IS_RTP_RTX_RECEIVE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_RTX_RECEIVE))
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#define GST_RTP_RTX_RECEIVE_CAST(obj) ((GstRtpRtxReceive *)(obj))
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struct _GstRtpRtxReceive
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{
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GstElement element;
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/* pad */
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GstPad *sinkpad;
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GstPad *srcpad;
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/* retrieve associated master stream from rtx stream
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* it also works to retrieve rtx stream from master stream
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* as we make sure all ssrc are unique */
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GHashTable *ssrc2_ssrc1_map;
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GstStructure *external_ssrc_map;
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/* contains seqnum of request packets of whom their ssrc have
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* not been associated to a rtx stream yet */
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GHashTable *seqnum_ssrc1_map;
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/* rtx pt (uint) -> origin pt (uint) */
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GHashTable *rtx_pt_map;
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/* origin pt (string) -> rtx pt (uint) */
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GstStructure *rtx_pt_map_structure;
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/* statistics */
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guint num_rtx_requests;
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guint num_rtx_packets;
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guint num_rtx_assoc_packets;
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GstClockTime last_time;
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};
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struct _GstRtpRtxReceiveClass
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{
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GstElementClass parent_class;
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};
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GType gst_rtp_rtx_receive_get_type (void);
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GST_ELEMENT_REGISTER_DECLARE (rtprtxreceive);
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G_END_DECLS
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#endif /* __GST_RTP_RTX_RECEIVE_H__ */
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