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gstrtpsession: suggest upstream to use the new "internal-ssrc" after a collision
When a collision is found on the internal ssrc, we have to change it. Ideally, we want also the payloader upstream to follow this change and use the new internal ssrc. Ideally we want this condition to be always met: if there is one payloader sending on this session, its ssrc should match the internal ssrc.
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1 changed files with 19 additions and 3 deletions
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@ -333,9 +333,25 @@ on_ssrc_collision (RTPSession * session, RTPSource * src, GstRtpSession * sess)
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GST_RTP_SESSION_UNLOCK (sess);
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if (send_rtp_sink) {
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GstEvent *event = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM,
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gst_structure_new ("GstRTPCollision", "ssrc", G_TYPE_UINT,
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(guint) src->ssrc, NULL));
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GstStructure *structure;
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GstEvent *event;
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RTPSource *internal_src;
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guint32 suggested_ssrc;
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structure = gst_structure_new ("GstRTPCollision", "ssrc", G_TYPE_UINT,
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(guint) src->ssrc, NULL);
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/* if there is no source using the suggested ssrc, most probably because
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* this ssrc has just collided, suggest upstream to use it */
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suggested_ssrc = rtp_session_suggest_ssrc (session);
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internal_src = rtp_session_get_source_by_ssrc (session, suggested_ssrc);
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if (!internal_src)
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gst_structure_set (structure, "suggested-ssrc", G_TYPE_UINT,
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(guint) suggested_ssrc, NULL);
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else
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g_object_unref (internal_src);
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event = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM, structure);
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gst_pad_push_event (send_rtp_sink, event);
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gst_object_unref (send_rtp_sink);
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}
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