[Bug 791449] New: x/xvimagesink: Crop Meta support only works if the proposed pool has been used
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Sun Dec 10 20:12:00 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=791449
Bug ID: 791449
Summary: x/xvimagesink: Crop Meta support only works if the
proposed pool has been used
Classification: Platform
Product: GStreamer
Version: git master
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-base
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: nicolas at ndufresne.ca
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Whenever the proposed pool is not used upstream, the element fails. The reason
is that buffer containing crop meta are larger then caps width/height used to
create the internal pool.
We need to delay the creation of the pool, and then alter the caps width/height
with the width/height found in the incoming buffer video meta. As a side
effect, we also need to validate this width/height every-time.
I'll post the videocrop patches needed to test this easily soon, meanwhile the
test pipeline will be:
videotestsrc ! videocrop top=100 ! tee ! xvimagesink
Tee does not drop the allocation query, but will not use downstream pools.
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