assrender: proxy allocations on video pad

Forward allocation queries on video sink pad instead
of discarding them.

This allows the upstream elements to use the allocation
parameters or pools from the downstream elements like
videosink.

https://bugzilla.gnome.org/show_bug.cgi?id=692012

diff --git a/ext/assrender/gstassrender.c b/ext/assrender/gstassrender.c
index 84bd10e..6499c0e 100644 (file)
--- a/ext/assrender/gstassrender.c
+++ b/ext/assrender/gstassrender.c
@@ -212,6 +212,8 @@ gst_ass_render_init (GstAssRender * render)
   gst_pad_set_query_function (render->video_sinkpad,
       GST_DEBUG_FUNCPTR (gst_ass_render_query_video));
 
+  GST_PAD_SET_PROXY_ALLOCATION (render->video_sinkpad);
+
   gst_element_add_pad (GST_ELEMENT (render), render->srcpad);
   gst_element_add_pad (GST_ELEMENT (render), render->video_sinkpad);
   gst_element_add_pad (GST_ELEMENT (render), render->text_sinkpad);