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7ad7266163
To be able to cap the number of allowed streams for one session. This is useful for preventing DoS attacks, where a sender can change SSRC for every buffer, effectively bringing rtpbin to a halt. https://bugzilla.gnome.org/show_bug.cgi?id=770292
134 lines
4.9 KiB
C
134 lines
4.9 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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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_BIN_H__
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#define __GST_RTP_BIN_H__
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#include <gst/gst.h>
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#include "rtpsession.h"
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#include "gstrtpsession.h"
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#include "rtpjitterbuffer.h"
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#define GST_TYPE_RTP_BIN \
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(gst_rtp_bin_get_type())
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#define GST_RTP_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BIN,GstRtpBin))
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#define GST_RTP_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BIN,GstRtpBinClass))
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#define GST_IS_RTP_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BIN))
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#define GST_IS_RTP_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BIN))
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typedef enum
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{
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GST_RTP_BIN_RTCP_SYNC_ALWAYS,
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GST_RTP_BIN_RTCP_SYNC_INITIAL,
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GST_RTP_BIN_RTCP_SYNC_RTP
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} GstRTCPSync;
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typedef struct _GstRtpBin GstRtpBin;
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typedef struct _GstRtpBinClass GstRtpBinClass;
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typedef struct _GstRtpBinPrivate GstRtpBinPrivate;
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struct _GstRtpBin {
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GstBin bin;
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/*< private >*/
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/* default latency for sessions */
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guint latency_ms;
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guint64 latency_ns;
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gboolean drop_on_latency;
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gboolean do_lost;
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gboolean ignore_pt;
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gboolean ntp_sync;
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gint rtcp_sync;
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guint rtcp_sync_interval;
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RTPJitterBufferMode buffer_mode;
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gboolean buffering;
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gboolean use_pipeline_clock;
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GstRtpNtpTimeSource ntp_time_source;
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gboolean send_sync_event;
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GstClockTime buffer_start;
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gboolean do_retransmission;
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GstRTPProfile rtp_profile;
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gboolean rtcp_sync_send_time;
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gint max_rtcp_rtp_time_diff;
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guint32 max_dropout_time;
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guint32 max_misorder_time;
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gboolean rfc7273_sync;
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guint max_streams;
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/* a list of session */
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GSList *sessions;
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/* a list of clients, these are streams with the same CNAME */
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GSList *clients;
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/* the default SDES items for sessions */
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GstStructure *sdes;
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/*< private >*/
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GstRtpBinPrivate *priv;
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};
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struct _GstRtpBinClass {
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GstBinClass parent_class;
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/* get the caps for pt */
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GstCaps* (*request_pt_map) (GstRtpBin *rtpbin, guint session, guint pt);
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void (*payload_type_change) (GstRtpBin *rtpbin, guint session, guint pt);
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void (*new_jitterbuffer) (GstRtpBin *rtpbin, GstElement *jitterbuffer, guint session, guint32 ssrc);
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/* action signals */
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void (*clear_pt_map) (GstRtpBin *rtpbin);
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void (*reset_sync) (GstRtpBin *rtpbin);
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GstElement* (*get_session) (GstRtpBin *rtpbin, guint session);
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RTPSession* (*get_internal_session) (GstRtpBin *rtpbin, guint session);
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/* session manager signals */
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void (*on_new_ssrc) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_ssrc_collision) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_ssrc_validated) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_ssrc_active) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_ssrc_sdes) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_bye_ssrc) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_bye_timeout) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_timeout) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_sender_timeout) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_npt_stop) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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GstElement* (*request_rtp_encoder) (GstRtpBin *rtpbin, guint session);
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GstElement* (*request_rtp_decoder) (GstRtpBin *rtpbin, guint session);
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GstElement* (*request_rtcp_encoder) (GstRtpBin *rtpbin, guint session);
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GstElement* (*request_rtcp_decoder) (GstRtpBin *rtpbin, guint session);
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GstElement* (*request_aux_sender) (GstRtpBin *rtpbin, guint session);
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GstElement* (*request_aux_receiver) (GstRtpBin *rtpbin, guint session);
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void (*on_new_sender_ssrc) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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void (*on_sender_ssrc_active) (GstRtpBin *rtpbin, guint session, guint32 ssrc);
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};
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GType gst_rtp_bin_get_type (void);
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#endif /* __GST_RTP_BIN_H__ */
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