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wayland: don't poll if there are no pending frames

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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
This commit is contained in:
Michael Olbrich 2018-04-13 09:28:53 +02:00 committed by Víctor Manuel Jáquez Leal
parent e19570a8b6
commit 1f71b5a57d
1 changed files with 5 additions and 0 deletions
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5
gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
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@ -185,6 +185,11 @@ gst_vaapi_window_wayland_sync (GstVaapiWindow * window)
if (wl_display_flush (wl_display) < 0) if (wl_display_flush (wl_display) < 0)
goto error; goto error;
if (g_atomic_int_get (&priv->num_frames_pending) == 0) {
wl_display_cancel_read (wl_display);
return TRUE;
}
again: again:
if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) { if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) {
int saved_errno = errno; int saved_errno = errno;