video sink by window ID

[Peter Maersk-Moller-2]

Hi

Is there a way to make a gstreamer video sink display video in another application using the X11 Window id as identifier pretty much the same way mplayer is using its '-wid' parameter to send video to another applications window/frame like a Tk frame. I think SDL can do it too, but probably only on X11 platforms.

And can it be made to work with CLI version of gst-launch-1.0 ?

I have checked the ximagesink, the xvimagesink and the glimagesink, but they do not have a window id parameter.

Google search on subject for GStreamer, but maybe I am looking for the wrong keywords.

Thanks in advance.

Peter Maersk-Moller

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[Matthew Waters]

Yes, this is possible, but only if you write code by using the GstVideoOverlay interface.

On X11, the Window is passed to the gst_video_overlay_set_window_handle().

Of course, if there is a specific video sink for your toolkit integration, you should try using that first though.

Cheers
-Matt

On 22/5/20 10:09 pm, Peter Maersk-Moller wrote:

Hi

Is there a way to make a gstreamer video sink display video in another application using the X11 Window id as identifier pretty much the same way mplayer is using its '-wid' parameter to send video to another applications window/frame like a Tk frame. I think SDL can do it too, but probably only on X11 platforms.

And can it be made to work with CLI version of gst-launch-1.0 ?

I have checked the ximagesink, the xvimagesink and the glimagesink, but they do not have a window id parameter.

Google search on subject for GStreamer, but maybe I am looking for the wrong keywords.

Thanks in advance.

Peter Maersk-Moller

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[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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[Nicolas Dufresne-5]

Le vendredi 22 mai 2020 à 14:09 +0200, Peter Maersk-Moller a écrit :

Hi

Is there a way to make a gstreamer video sink display video in another application using the X11 Window id as identifier pretty much the same way mplayer is using its '-wid' parameter to send video to another applications window/frame like a Tk frame. I think SDL can do it too, but probably only on X11 platforms.

And can it be made to work with CLI version of gst-launch-1.0 ?

I have checked the ximagesink, the xvimagesink and the glimagesink, but they do not have a window id parameter.

Google search on subject for GStreamer, but maybe I am looking for the wrong keywords.

It is not possible from gst-launch-1.0, here's a python example, though I'm not sure what is needed to make sure foreign window render will work.

import gi

gi.require_versions({"Gst": "1.0", "GstVideo": "1.0"})

from gi.repository import Gst, GstVideo

import time

Gst.init(None)

p = Gst.parse_launch("videotestsrc ! ximagesink name=sink")

s = p.get_by_name("sink")

GstVideo.VideoOverlay.set_window_handle(s, 0x1000022)

p.set_state(Gst.State.PLAYING)

time.sleep(10)

p.set_state(Gst.State.NULL)

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