commit 6f3d6d6a8e5fad3cf949192d78fdcd6459a863fa
author Matthias Fend <matthias.fend@wolfvision.net> Thu Mar 08 11:28:58 2018 +0100
committer Sebastian Dröge <sebastian@centricular.com> Tue May 01 11:24:32 2018 +0300
tree 3567cc3838a4a2b00c743e558728ead5cadf952d
parent 2012e1d1c6dc84115ad3e36dc10ded898c69b4e6

videodecoder: keep event order

Since events are pushed out in reverse order, newer events need to
be added at the front of event lists

https://bugzilla.gnome.org/show_bug.cgi?id=794192

gst-libs/gst/video/gstvideodecoder.c

diff --git a/gst-libs/gst/video/gstvideodecoder.c b/gst-libs/gst/video/gstvideodecoder.c
index a003082..324e23d 100644
--- a/gst-libs/gst/video/gstvideodecoder.c
+++ b/gst-libs/gst/video/gstvideodecoder.c
@@ -2629,7 +2629,7 @@
     GstVideoCodecFrame *tmp = l->data;
 
     if (tmp->events) {
-      events = g_list_concat (events, tmp->events);
+      events = g_list_concat (tmp->events, events);
       tmp->events = NULL;
     }
 
@@ -2640,7 +2640,7 @@
   if (dropping || !decoder->priv->output_state) {
     /* Push before the next frame that is not dropped */
     decoder->priv->pending_events =
-        g_list_concat (decoder->priv->pending_events, events);
+        g_list_concat (events, decoder->priv->pending_events);
   } else {
     gst_video_decoder_push_event_list (decoder, decoder->priv->pending_events);
     decoder->priv->pending_events = NULL;
@@ -2822,7 +2822,7 @@
   }
   if (frame->events) {
     dec->priv->pending_events =
-        g_list_concat (dec->priv->pending_events, frame->events);
+        g_list_concat (frame->events, dec->priv->pending_events);
     frame->events = NULL;
   }
   GST_VIDEO_DECODER_STREAM_UNLOCK (dec);