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videomixer: Port to new collectpads API

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See: https://bugzilla.gnome.org/show_bug.cgi?id=724705
This commit is contained in:
Mathieu Duponchelle 2014-02-19 03:04:03 +01:00 committed by Sebastian Dröge
parent 155d666845
commit 6cf0f19c14
2 changed files with 12 additions and 62 deletions
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69
gst/videomixer/videomixer2.c
View file

@ -841,8 +841,6 @@ gst_videomixer2_reset (GstVideoMixer2 * mix)
}
mix->newseg_pending = TRUE;
g_atomic_int_set (&mix->flush_stop_pending, FALSE);
g_atomic_int_set (&mix->waiting_flush_stop, FALSE);
}
/* 1 == OK
@ -1198,11 +1196,6 @@ gst_videomixer2_collected (GstCollectPads * pads, GstVideoMixer2 * mix)
if (GST_VIDEO_INFO_FORMAT (&mix->info) == GST_VIDEO_FORMAT_UNKNOWN)
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 (TRUE));
}
if (mix->send_stream_start) {
gchar s_id[32];
@ -1587,20 +1580,6 @@ gst_videomixer2_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
GST_DEBUG_OBJECT (mix, "Handling SEEK event");
/* check if we are flushing */
if (flags & GST_SEEK_FLAG_FLUSH) {
/* flushing seek, start flush downstream, the flush will be done
* when all pads received a FLUSH_STOP. */
gst_pad_push_event (mix->srcpad, gst_event_new_flush_start ());
/* make sure we accept nothing anymore and return WRONG_STATE */
gst_collect_pads_set_flushing (mix->collect, TRUE);
}
/* now wait for the collected to be finished and mark a new
* segment */
GST_COLLECT_PADS_STREAM_LOCK (mix->collect);
abs_rate = ABS (rate);
GST_VIDEO_MIXER2_LOCK (mix);
@ -1634,24 +1613,9 @@ gst_videomixer2_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
mix->nframes = 0;
mix->newseg_pending = 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.
*/
g_atomic_int_set (&mix->flush_stop_pending, TRUE);
g_atomic_int_set (&mix->waiting_flush_stop, FALSE);
}
GST_COLLECT_PADS_STREAM_UNLOCK (mix->collect);
gst_videomixer2_reset_qos (mix);
result = gst_videomixer2_push_sink_event (mix, event);
result = gst_collect_pads_src_event_default (mix->collect, pad, event);
break;
}
case GST_EVENT_NAVIGATION:
@ -1914,6 +1878,15 @@ gst_videomixer2_sink_clip (GstCollectPads * pads,
return GST_FLOW_OK;
}
static void
gst_videomixer2_flush (GstCollectPads * pads, GstVideoMixer2 * mix)
{
if (mix->pending_tags) {
gst_tag_list_unref (mix->pending_tags);
mix->pending_tags = NULL;
}
}
static gboolean
gst_videomixer2_sink_event (GstCollectPads * pads, GstCollectData * cdata,
GstEvent * event, GstVideoMixer2 * mix)
@ -1944,29 +1917,9 @@ gst_videomixer2_sink_event (GstCollectPads * pads, GstCollectData * cdata,
g_assert (seg.format == GST_FORMAT_TIME);
break;
}
case GST_EVENT_FLUSH_START:
g_atomic_int_set (&mix->waiting_flush_stop, TRUE);
g_atomic_int_set (&mix->flush_stop_pending, FALSE);
ret = gst_collect_pads_event_default (pads, cdata, event, discard);
event = NULL;
if (mix->pending_tags) {
gst_tag_list_unref (mix->pending_tags);
mix->pending_tags = NULL;
}
break;
case GST_EVENT_FLUSH_STOP:
mix->newseg_pending = TRUE;
if (g_atomic_int_compare_and_exchange (&mix->waiting_flush_stop, TRUE,
FALSE)) {
GST_DEBUG_OBJECT (pad, "forwarding flush stop");
ret = gst_collect_pads_event_default (pads, cdata, event, discard);
event = NULL;
} else {
discard = TRUE;
GST_DEBUG_OBJECT (pad, "eating flush stop");
}
/* FIXME Should we reset in case we were not awaiting a flush stop? */
gst_videomixer2_reset_qos (mix);
gst_buffer_replace (&pad->mixcol->buffer, NULL);
pad->mixcol->start_time = -1;
@ -2342,6 +2295,8 @@ gst_videomixer2_init (GstVideoMixer2 * mix)
gst_element_add_pad (GST_ELEMENT (mix), mix->srcpad);
mix->collect = gst_collect_pads_new ();
gst_collect_pads_set_flush_function (mix->collect,
(GstCollectPadsFlushFunction) gst_videomixer2_flush, mix);
mix->background = DEFAULT_BACKGROUND;
mix->current_caps = NULL;
mix->pending_tags = NULL;

5
gst/videomixer/videomixer2.h
View file

@ -97,11 +97,6 @@ struct _GstVideoMixer2
gboolean send_caps;
gboolean newseg_pending;
gboolean flush_stop_pending; /* Used when we receive a flushing seek,
to send a flush_stop right before the
following buffer */
gboolean waiting_flush_stop; /* Used when we receive a flush_start to make
sure to forward the flush_stop only once */
GstVideoMixer2Background background;