It is possible to provide an explicit preview of media objects since
commit 8fa1d453c9 (Related: tdf#149971
svx: support explicitly provided snapshots for media shapes,
2022-08-24), however they can't be cropped.
This means that media shapes from PPTX with cropping show unexpected
content and can also have a buggy aspect ratio.
Extend avmedia::MediaItem to store cropping and take it into account
when returning the preview bitmap in SdrMediaObj::getSnapshot(). PPTX
import works out of the box, as oox/ already tried to set a cropping
property on the media shape.
This is just the preview, the cropping of the video itself is not yet
implemented.
Change-Id: I8db3e0dcf252613d56eb0e6139adf097e53b15cc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/138808
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins
b6f0fd6a2f