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Make sure FLUSH_STOP is sent so not to leave downstream flushing.

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This commit is contained in:
Alessandro Decina 2010-02-24 02:05:49 +01:00
parent 673459c711
commit 49b2a94644
2 changed files with 29 additions and 0 deletions
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27
gst/videomixer/videomixer.c
View file

@ -653,6 +653,7 @@ gst_videomixer_reset (GstVideoMixer * mix)
}
mix->next_sinkpad = 0;
mix->flush_stop_pending = FALSE;
}
static void
@ -1341,6 +1342,11 @@ gst_videomixer_collected (GstCollectPads * pads, GstVideoMixer * mix)
if (G_UNLIKELY (mix->in_width == 0))
return GST_FLOW_NOT_NEGOTIATED;
if (g_atomic_int_compare_and_exchange (&mix->flush_stop_pending, TRUE, FALSE)) {
GST_DEBUG_OBJECT (mix, "pending flush stop");
gst_pad_push_event (mix->srcpad, gst_event_new_flush_stop ());
}
GST_LOG_OBJECT (mix, "all pads are collected");
GST_VIDEO_MIXER_STATE_LOCK (mix);
@ -1548,10 +1554,30 @@ gst_videomixer_src_event (GstPad * pad, GstEvent * event)
else
mix->segment_position = 0;
mix->sendseg = TRUE;
if (flags & GST_SEEK_FLAG_FLUSH) {
gst_collect_pads_set_flushing (mix->collect, FALSE);
/* we can't send FLUSH_STOP here since upstream could start pushing data
* after we unlock mix->collect.
* We set flush_stop_pending to TRUE instead and send FLUSH_STOP after
* forwarding the seek upstream or from gst_videomixer_collected,
* whichever happens first.
*/
mix->flush_stop_pending = TRUE;
}
GST_OBJECT_UNLOCK (mix->collect);
gst_videomixer_reset_qos (mix);
result = forward_event (mix, event);
if (g_atomic_int_compare_and_exchange (&mix->flush_stop_pending,
TRUE, FALSE)) {
GST_DEBUG_OBJECT (mix, "pending flush stop");
gst_pad_push_event (mix->srcpad, gst_event_new_flush_stop ());
}
break;
}
case GST_EVENT_NAVIGATION:
@ -1587,6 +1613,7 @@ gst_videomixer_sink_event (GstPad * pad, GstEvent * event)
* and downstream (using our source pad, the bastard!).
*/
videomixer->sendseg = TRUE;
videomixer->flush_stop_pending = FALSE;
gst_videomixer_reset_qos (videomixer);
/* Reset pad state after FLUSH_STOP */

2
gst/videomixer/videomixer.h
View file

@ -116,6 +116,8 @@ struct _GstVideoMixer
BlendFunction blend;
FillCheckerFunction fill_checker;
FillColorFunction fill_color;
gboolean flush_stop_pending;
};
struct _GstVideoMixerClass