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tagdemux: Use upstream GST_EVENT_STREAM_START if present

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If we have an upstream GST_EVENT_STREAM_START, use that one instead
of creating a new one which could be completely different from the
upstream one and drop information (like the stream flags and stream
object).

Only create a new event if we don't already have one from upstream

https://bugzilla.gnome.org/show_bug.cgi?id=797215
This commit is contained in:
Edward Hervey 2018-09-27 15:03:10 +02:00 committed by Edward Hervey
parent 2c44c5fb40
commit 8707914d23
1 changed files with 8 additions and 19 deletions
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27
gst-libs/gst/tag/gsttagdemux.c
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@ -339,10 +339,6 @@ gst_tag_demux_set_src_caps (GstTagDemux * tagdemux, GstCaps * new_caps)
if (old_caps == NULL || !gst_caps_is_equal (new_caps, old_caps)) {
GstEvent *event;
guint group_id;
gboolean have_group_id;
gchar *stream_id = gst_pad_create_stream_id (tagdemux->priv->srcpad,
GST_ELEMENT_CAST (tagdemux), NULL);
gst_caps_replace (&tagdemux->priv->src_caps, new_caps);
@ -352,23 +348,16 @@ gst_tag_demux_set_src_caps (GstTagDemux * tagdemux, GstCaps * new_caps)
event =
gst_pad_get_sticky_event (tagdemux->priv->sinkpad,
GST_EVENT_STREAM_START, 0);
if (event) {
if (gst_event_parse_group_id (event, &group_id))
have_group_id = TRUE;
else
have_group_id = FALSE;
gst_event_unref (event);
} else {
have_group_id = TRUE;
group_id = gst_util_group_id_next ();
if (!event) {
gchar *stream_id = gst_pad_create_stream_id (tagdemux->priv->srcpad,
GST_ELEMENT_CAST (tagdemux), NULL);
GST_DEBUG_OBJECT (tagdemux, "Creating new STREAM_START event");
event = gst_event_new_stream_start (stream_id);
g_free (stream_id);
gst_event_set_group_id (event, gst_util_group_id_next ());
}
event = gst_event_new_stream_start (stream_id);
if (have_group_id)
gst_event_set_group_id (event, group_id);
gst_pad_push_event (tagdemux->priv->srcpad, event);
g_free (stream_id);
gst_pad_set_caps (tagdemux->priv->srcpad, tagdemux->priv->src_caps);
} else {
/* Caps never changed */