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webrtcbin: Store the ssrc of the last received packet
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1448>
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commit
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2 changed files with 36 additions and 0 deletions
subprojects/gst-plugins-bad/ext/webrtc
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@ -439,6 +439,37 @@ gst_webrtc_bin_pad_init (GstWebRTCBinPad * pad)
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{
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}
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static GstPadProbeReturn
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webrtc_bin_pad_buffer_cb (GstPad * pad, GstPadProbeInfo * info,
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gpointer user_data)
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{
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GstWebRTCBinPad *wpad;
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GstBuffer *buf;
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GstRTPBuffer rtpbuf = GST_RTP_BUFFER_INIT;
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if (info->type & GST_PAD_PROBE_TYPE_BUFFER) {
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buf = GST_PAD_PROBE_INFO_BUFFER (info);
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} else {
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GstBufferList *list;
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list = GST_PAD_PROBE_INFO_BUFFER_LIST (info);
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buf = gst_buffer_list_get (list, 0);
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}
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if (buf == NULL)
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return GST_PAD_PROBE_OK;
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if (!gst_rtp_buffer_map (buf, GST_MAP_READ, &rtpbuf))
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return GST_PAD_PROBE_OK;
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wpad = GST_WEBRTC_BIN_PAD (pad);
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wpad->last_ssrc = gst_rtp_buffer_get_ssrc (&rtpbuf);
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gst_rtp_buffer_unmap (&rtpbuf);
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return GST_PAD_PROBE_OK;
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}
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static GstWebRTCBinPad *
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gst_webrtc_bin_pad_new (const gchar * name, GstPadDirection direction)
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{
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@ -460,6 +491,9 @@ gst_webrtc_bin_pad_new (const gchar * name, GstPadDirection direction)
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gst_pad_set_event_function (GST_PAD (pad), gst_webrtcbin_sink_event);
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gst_pad_set_query_function (GST_PAD (pad), gst_webrtcbin_sink_query);
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gst_pad_add_probe (GST_PAD (pad), GST_PAD_PROBE_TYPE_BUFFER |
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GST_PAD_PROBE_TYPE_BUFFER_LIST, webrtc_bin_pad_buffer_cb, NULL, NULL);
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GST_DEBUG_OBJECT (pad, "new visible pad with direction %s",
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direction == GST_PAD_SRC ? "src" : "sink");
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return pad;
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@ -46,6 +46,8 @@ struct _GstWebRTCBinPad
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GstWebRTCRTPTransceiver *trans;
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gulong block_id;
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guint32 last_ssrc;
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GstCaps *received_caps;
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};
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