[Bug 746087] New: GstVideoCropMeta implementation is inconsistent
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Thu Mar 12 05:14:47 PDT 2015
https://bugzilla.gnome.org/show_bug.cgi?id=746087
Bug ID: 746087
Summary: GstVideoCropMeta implementation is inconsistent
Classification: Platform
Product: GStreamer
Version: git master
OS: Linux
Status: NEW
Severity: blocker
Priority: Normal
Component: gst-plugins-base
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: thaytan at noraisin.net
QA Contact: gstreamer-bugs at lists.freedesktop.org
CC: mduponchelle1 at gmail.com,
nicolas.dufresne at collabora.co.uk, slomo at coaxion.net,
t.i.m at zen.co.uk, thaytan at noraisin.net,
vincent.penquerch at collabora.co.uk
Depends on: 741030
GNOME version: ---
Currently GstVideoCropMeta implementation is problematic - caps width/height
values and GstVideoMeta settings are a bit jumbled, and things need fixing and
documenting across the board.
>From slomo in bug #74010, it should work like this:
- CAPS event contains the display width/height (otherwise applications will
become unhappy, GstDiscoverer reports wrong information, etc)
- caps inside the ALLOCATION query contain the memory width/height
- GstVideoMeta contains the memory width/height
- GstVideoCropMeta contains how much should be cropped relative to the values
inside the video meta and the ALLOCATION query caps
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