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playbin2: Flush the subtitles before switching to a new subtitle stream

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This makes sure that all currently shown subtitles disappear
and new ones can be shown as soon as possible.
This commit is contained in:
Sebastian Dröge 2009-11-04 17:29:07 +01:00
parent e91458f13c
commit 16073d1eb7
1 changed files with 29 additions and 2 deletions
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31
gst/playback/gstplaybin2.c
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@ -1526,9 +1526,36 @@ gst_play_bin_set_current_text_stream (GstPlayBin * playbin, gint stream)
GstObject *selector;
if ((selector = gst_pad_get_parent (sinkpad))) {
/* activate the selected pad */
g_object_set (selector, "active-pad", sinkpad, NULL);
GstPad *old_sinkpad;
g_object_get (selector, "active-pad", &old_sinkpad, NULL);
if (old_sinkpad != sinkpad) {
GstPad *src, *peer;
/* activate the selected pad */
g_object_set (selector, "active-pad", sinkpad, NULL);
src = gst_element_get_static_pad (GST_ELEMENT_CAST (selector), "src");
peer = gst_pad_get_peer (src);
if (peer) {
GstStructure *s;
GstEvent *event;
/* Flush the subtitle renderer to remove any
* currently displayed subtitles. This event will
* never travel outside subtitleoverlay!
*/
s = gst_structure_empty_new ("subtitleoverlay-flush-subtitle");
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_OOB, s);
gst_pad_send_event (peer, event);
gst_object_unref (peer);
}
gst_object_unref (src);
}
gst_object_unref (selector);
if (old_sinkpad)
gst_object_unref (old_sinkpad);
}
gst_object_unref (sinkpad);
}