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videoaggregator: Make sure to hold object lock while iterating sink pads

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They might otherwise just change while we iterate.
This commit is contained in:
Sebastian Dröge 2018-08-16 10:02:42 +03:00
parent 3e067ae333
commit 8430e47006
1 changed files with 19 additions and 9 deletions
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28
gst-libs/gst/video/gstvideoaggregator.c
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@ -949,6 +949,20 @@ gst_video_aggregator_default_update_src_caps (GstAggregator * agg,
return GST_FLOW_OK;
}
static gboolean
_update_conversion_info (GstElement * element, GstPad * pad, gpointer user_data)
{
GstVideoAggregatorPad *vaggpad = GST_VIDEO_AGGREGATOR_PAD (pad);
GstVideoAggregatorPadClass *vaggpad_klass =
GST_VIDEO_AGGREGATOR_PAD_GET_CLASS (vaggpad);
if (vaggpad_klass->update_conversion_info) {
vaggpad_klass->update_conversion_info (vaggpad);
}
return TRUE;
}
static gboolean
gst_video_aggregator_default_negotiated_src_caps (GstAggregator * agg,
GstCaps * caps)
@ -1001,15 +1015,8 @@ gst_video_aggregator_default_negotiated_src_caps (GstAggregator * agg,
}
/* Then browse the sinks once more, setting or unsetting conversion if needed */
for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) {
GstVideoAggregatorPad *pad = GST_VIDEO_AGGREGATOR_PAD (l->data);
GstVideoAggregatorPadClass *vaggpad_klass =
GST_VIDEO_AGGREGATOR_PAD_GET_CLASS (pad);
if (vaggpad_klass->update_conversion_info) {
vaggpad_klass->update_conversion_info (pad);
}
}
gst_element_foreach_sink_pad (GST_ELEMENT_CAST (vagg),
_update_conversion_info, NULL);
if (vagg->priv->current_caps == NULL ||
gst_caps_is_equal (caps, vagg->priv->current_caps) == FALSE) {
@ -1032,6 +1039,7 @@ gst_video_aggregator_get_sinkpads_interlace_mode (GstVideoAggregator * vagg,
{
GList *walk;
GST_OBJECT_LOCK (vagg);
for (walk = GST_ELEMENT (vagg)->sinkpads; walk; walk = g_list_next (walk)) {
GstVideoAggregatorPad *vaggpad = walk->data;
@ -1040,9 +1048,11 @@ gst_video_aggregator_get_sinkpads_interlace_mode (GstVideoAggregator * vagg,
if (vaggpad->info.finfo
&& GST_VIDEO_INFO_FORMAT (&vaggpad->info) != GST_VIDEO_FORMAT_UNKNOWN) {
*mode = GST_VIDEO_INFO_INTERLACE_MODE (&vaggpad->info);
GST_OBJECT_UNLOCK (vagg);
return TRUE;
}
}
GST_OBJECT_UNLOCK (vagg);
return FALSE;
}