[Bug 688415] New: [textoverlay] Does not proxy the ALLOCATION query
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Thu Nov 15 09:41:02 PST 2012
https://bugzilla.gnome.org/show_bug.cgi?id=688415
GStreamer | gst-plugins-base | 1.x
Summary: [textoverlay] Does not proxy the ALLOCATION query
Classification: Platform
Product: GStreamer
Version: 1.x
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gst-plugins-base
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: thibault.saunier at collabora.com
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
The textoverlay element does not proxy the ALLOCATION query. It will make the
query not arrive stop at this element when an upstream element do this query.
In the case of playbin2 for example, decoders will query allocation downstream
to use a common bufferpool, but as there is a textoverlay on the way, it will
never be able to use the pool from the sink. In the end useless memcopy happens
in the sink because of the fact that sinks usually wait for buffers that have
been allocated by its own pool (it is the case for xvimagesink and ximagesink
at least).
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