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videomixer: Always handle flush_stop_pending atomically

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It is not protected with the COLLECT_PADS_STREAM_LOCK anymore
This commit is contained in:
Thibault Saunier 2013-05-25 12:17:40 -04:00
parent 03fc515f66
commit 7a3df1ab31
1 changed files with 6 additions and 9 deletions
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15
gst/videomixer/videomixer2.c
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@ -643,9 +643,7 @@ gst_videomixer2_reset (GstVideoMixer2 * mix)
}
mix->newseg_pending = TRUE;
GST_COLLECT_PADS_STREAM_LOCK (mix->collect);
mix->flush_stop_pending = FALSE;
GST_COLLECT_PADS_STREAM_UNLOCK (mix->collect);
g_atomic_int_set (&mix->flush_stop_pending, FALSE);
}
/* 1 == OK
@ -961,10 +959,9 @@ gst_videomixer2_collected (GstCollectPads * pads, GstVideoMixer2 * mix)
if (GST_VIDEO_INFO_FORMAT (&mix->info) == GST_VIDEO_FORMAT_UNKNOWN)
return GST_FLOW_NOT_NEGOTIATED;
if (mix->flush_stop_pending == TRUE) {
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 (TRUE));
mix->flush_stop_pending = FALSE;
}
if (mix->send_stream_start) {
@ -1416,7 +1413,7 @@ gst_videomixer2_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
* forwarding the seek upstream or from gst_videomixer_collected,
* whichever happens first.
*/
mix->flush_stop_pending = TRUE;
g_atomic_int_set (&mix->flush_stop_pending, TRUE);
}
GST_COLLECT_PADS_STREAM_UNLOCK (mix->collect);
@ -1717,16 +1714,16 @@ gst_videomixer2_sink_event (GstCollectPads * pads, GstCollectData * cdata,
break;
}
case GST_EVENT_FLUSH_START:
mix->flush_stop_pending = TRUE;
g_atomic_int_set (&mix->flush_stop_pending, TRUE);
ret = gst_collect_pads_event_default (pads, cdata, event, discard);
event = NULL;
break;
case GST_EVENT_FLUSH_STOP:
mix->newseg_pending = TRUE;
if (mix->flush_stop_pending) {
if (g_atomic_int_compare_and_exchange (&mix->flush_stop_pending, TRUE,
FALSE)) {
GST_DEBUG_OBJECT (pad, "forwarding flush stop");
ret = gst_collect_pads_event_default (pads, cdata, event, discard);
mix->flush_stop_pending = FALSE;
event = NULL;
} else {
discard = TRUE;