rtpvp8depay: If configured to wait for keyframes after packet loss, also do that...

This can happen if the data inside the packets is incomplete without the
seqnums being discontinuous because of ULPFEC being used.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2947>

diff --git a/subprojects/gst-plugins-good/gst/rtp/gstrtpvp8depay.c b/subprojects/gst-plugins-good/gst/rtp/gstrtpvp8depay.c
index 99d7554..3428f43 100644 (file)
--- a/subprojects/gst-plugins-good/gst/rtp/gstrtpvp8depay.c
+++ b/subprojects/gst-plugins-good/gst/rtp/gstrtpvp8depay.c
@@ -354,6 +354,13 @@ gst_rtp_vp8_depay_process (GstRTPBaseDepayload * depay, GstRTPBuffer * rtp)
       gst_adapter_clear (self->adapter);
       self->started = FALSE;
 
+      if (self->wait_for_keyframe)
+        self->waiting_for_keyframe = TRUE;
+      if (self->request_keyframe)
+        gst_pad_push_event (GST_RTP_BASE_DEPAYLOAD_SINKPAD (depay),
+            gst_video_event_new_upstream_force_key_unit (GST_CLOCK_TIME_NONE,
+                TRUE, 0));
+
       send_new_lost_event (self, GST_BUFFER_PTS (rtp->buffer), picture_id,
           "Incomplete frame detected");
       sent_lost_event = TRUE;
@@ -368,6 +375,14 @@ gst_rtp_vp8_depay_process (GstRTPBaseDepayload * depay, GstRTPBuffer * rtp)
         send_last_lost_event (self);
         self->stop_lost_events = FALSE;
       }
+
+      if (self->wait_for_keyframe)
+        self->waiting_for_keyframe = TRUE;
+      if (self->request_keyframe)
+        gst_pad_push_event (GST_RTP_BASE_DEPAYLOAD_SINKPAD (depay),
+            gst_video_event_new_upstream_force_key_unit (GST_CLOCK_TIME_NONE,
+                TRUE, 0));
+
       goto done;
     }