File gst-vaapi-wayland-dont-poll-no-pending-frames.p... of Package gstreamer-plugins-vaapi

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File gst-vaapi-wayland-dont-poll-no-pending-frames.patch of Package gstreamer-plugins-vaapi (Revision 9a987949d11fbd42004ff096ce7c2b8f)

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From 1dc3c9e183669c2b23ab0428109a6e107ace6e25 Mon Sep 17 00:00:00 2001
From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Fri, 13 Apr 2018 09:28:53 +0200
Subject: wayland: don't poll if there are no pending frames

Otherwise the following poll may not return for an arbitrary amount of
time. This can happen if another wayland event queue has flushed and read
our events.

https://bugzilla.gnome.org/show_bug.cgi?id=795224
---
 gst-libs/gst/vaapi/gstvaapiwindow_wayland.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c b/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
index 3d77e45..bd2d89d 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
+++ b/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
@@ -185,6 +185,11 @@ gst_vaapi_window_wayland_sync (GstVaapiWindow * window)
     if (wl_display_flush (wl_display) < 0)
       goto error;
 
+    if (g_atomic_int_get (&priv->num_frames_pending) == 0) {
+      wl_display_cancel_read (wl_display);
+      return TRUE;
+    }
+
   again:
     if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) {
       int saved_errno = errno;
-- 
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File gst-vaapi-wayland-dont-poll-no-pending-frames.patch of Package gstreamer-plugins-vaapi (Revision 9a987949d11fbd42004ff096ce7c2b8f)

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