deinterlace: add alternate support
authorGuillaume Desmottes <guillaume.desmottes@collabora.com>
Mon, 27 Jan 2020 06:59:18 +0000 (12:29 +0530)
committerGStreamer Merge Bot <gitlab-merge-bot@gstreamer-foundation.org>
Tue, 3 Mar 2020 17:15:00 +0000 (17:15 +0000)
commitd43ad6e0296b78eddfe59e9cd083654882150499
treecc5324112bb4cd87191a8f8f711e2f6d4fbcb9f4
parentb3d96e06c6d9df3679cb9a7036bb3b226cb56aff
deinterlace: add alternate support

In this mode each field is carried using its own buffer.
Allow deinterlace to negotiate caps with the Interlaced feature and
adjust the algorithm fetching lines.

Fix #620
gst/deinterlace/gstdeinterlace.c
gst/deinterlace/gstdeinterlacemethod.c