oggdemux: safety for failing to determine time length in push mode

If we can't find a valid granule near the end of the file, we
disable seeking. This guards against the whole file being then
read and never going to PLAYING.

https://bugzilla.gnome.org/show_bug.cgi?id=770314

diff --git a/ext/ogg/gstoggdemux.c b/ext/ogg/gstoggdemux.c
index 6f03edd..517430e 100644 (file)
--- a/ext/ogg/gstoggdemux.c
+++ b/ext/ogg/gstoggdemux.c
@@ -1538,6 +1538,10 @@ gst_ogg_demux_seek_back_after_push_duration_check_unlock (GstOggDemux * ogg)
   event = ogg->push_mode_seek_delayed_event;
   ogg->push_mode_seek_delayed_event = NULL;
 
+  /* if we haven't learnt about the total time yet, disable seeking */
+  if (ogg->total_time == -1)
+    ogg->push_disable_seeking = TRUE;
+
   ogg->push_state = PUSH_PLAYING;
 
   /* If there is one, perform it. Otherwise, seek back at start to start