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Bug 678389 - teletextdec: use GstVideoOverlayComposition
teletextdec: use GstVideoOverlayComposition
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
git master
Other Linux
: Normal enhancement
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on: 678384
Reported: 2012-06-19 10:44 UTC by Mark Nauwelaerts
Modified: 2018-11-03 13:12 UTC
See Also:
GNOME target: ---
GNOME version: ---

Description Mark Nauwelaerts 2012-06-19 10:44:59 UTC
That is, for "pure subtitle overlay" elements such as 
but possibly also not so pure subtitle and decoder elements such as:
Comment 1 Tim-Philipp Müller 2013-01-22 00:32:48 UTC
One down, two to go:

commit 143c0cbd45008c208fe8f2201429adb54c101ad2
Author: Arnaud Vrac <>
Date:   Fri Jan 18 16:14:03 2013 +0100

    assrender: use overlay composition to blit subtitles on video frames
    Re-uses existing blitting code and also means we can support
    a lot more video formats out of the box, hence avoid unnecessary
    pixel format or colour space conversions.

commit 5f913665537e40758540eb8fa9858adace3650bd
Author: Arnaud Vrac <>
Date:   Thu Jan 17 18:48:12 2013 +0100

    assrender: render overlay composition if supported downstream
    This allows rendering ASS subtitles on top of video when
    using hardware-accelerated video decoders based on e.g.
    VA-API or VDPAU.
Comment 2 Tim-Philipp Müller 2016-11-16 14:03:05 UTC
dvbsuboverlay supports it these days it seems.
Comment 3 GStreamer system administrator 2018-11-03 13:12:20 UTC
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