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ximagesrc: grab the server while capturing screen image

Browse source 
Makes sure screen resolution doesn't change in the middle of the
process.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1562>
This commit is contained in:
Jakub Adam 2022-01-24 16:49:52 +01:00 committed by GStreamer Marge Bot
parent c93afcc99c
commit 2125dbbd0b
1 changed files with 7 additions and 0 deletions
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7
subprojects/gst-plugins-good/sys/ximage/gstximagesrc.c
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@ -911,12 +911,19 @@ gst_ximage_src_create (GstPushSrc * bs, GstBuffer ** buf)
s->last_frame_no = next_frame_no;
GST_OBJECT_UNLOCK (s);
XGrabServer (s->xcontext->disp);
if (gst_ximage_src_recalc (s) && !gst_base_src_negotiate (GST_BASE_SRC (s))) {
XUngrabServer (s->xcontext->disp);
XSync (s->xcontext->disp, False);
return GST_FLOW_NOT_NEGOTIATED;
}
image = gst_ximage_src_ximage_get (s);
XUngrabServer (s->xcontext->disp);
XSync (s->xcontext->disp, False);
if (!image)
return GST_FLOW_ERROR;