[Bug 678306] New: [decodebin2] improve element instance handling
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Mon Jun 18 03:49:26 PDT 2012
https://bugzilla.gnome.org/show_bug.cgi?id=678306
GStreamer | gst-plugins-base | git
Summary: [decodebin2] improve element instance handling
Classification: Platform
Product: GStreamer
Version: git
OS/Version: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-base
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: mnauw at users.sourceforge.net
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
decodebin2 behaviour upon a "channel switch" (like switching in a chained ogg)
is currently as follows:
* new pads are added, for which new chains with new element (codec) instances
are created
* old pads are eos-ed and removed, upon which the old chains are 'hidden'.
This only entails a partial cleanup, and in particular the old element
instances are kept around even in PLAYING state.
At least 2 improvements/fixes seem to apply here:
* arrange for the old element instances to be taken down to e.g. READY
* put the old elements in some cached-element list so they can be re-used next
time some such element is needed in a chain (like for example a subsequent
channel switch).
[note that keeping the old ones around in READY allows to re-use some global
setup performed when going to READY]
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