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rtspsrc: De-dup seek event seqnums to avoid multiple seeks

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Seek events are sent upstream on each sink, so if we receive multiple
seeks with the same seqnum, we must only perform one seek, not N seeks
where N = the number of sinks in the pipeline connected to rtspsrc.

This is the same thing done by demuxers like qtdemux or matrsokademux.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/938>
This commit is contained in:
Nirbheek Chauhan 2021-04-10 03:09:44 +05:30 committed by GStreamer Marge Bot
parent 57e4eab72d
commit 590fbb4ddd
1 changed files with 9 additions and 1 deletions
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10
gst/rtsp/gstrtspsrc.c
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@ -2978,7 +2978,15 @@ gst_rtspsrc_handle_src_event (GstPad * pad, GstObject * parent,
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
res = gst_rtspsrc_perform_seek (src, event);
{
guint32 seqnum = gst_event_get_seqnum (event);
if (seqnum == src->seek_seqnum) {
GST_LOG_OBJECT (pad, "Drop duplicated SEEK event seqnum %"
G_GUINT32_FORMAT, seqnum);
} else {
res = gst_rtspsrc_perform_seek (src, event);
}
}
forward = FALSE;
break;
case GST_EVENT_QOS: