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playbin2: Post a stream-changed message after activating a group

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This is useful to detect when playbin2 has really switched to the next
group after about-to-finish for example.

Fixes bug #584987.
This commit is contained in:
Sebastian Dröge 2009-11-15 19:36:21 +01:00
parent 9d0754fa26
commit 7e674d8605
1 changed files with 100 additions and 66 deletions
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166
gst/playback/gstplaybin2.c
View file

@ -316,6 +316,8 @@ struct _GstSourceGroup
gulong sub_no_more_pads_id;
gulong sub_autoplug_continue_id;
gint stream_changed_pending;
/* selectors for different streams */
GstSourceSelect selector[GST_PLAY_SINK_TYPE_LAST];
};
@ -1997,78 +1999,89 @@ gst_play_bin_handle_message (GstBin * bin, GstMessage * msg)
}
}
g_free (detail);
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ELEMENT) {
const GstStructure *s = gst_message_get_structure (msg);
group = playbin->curr_group;
/* If we get an error of the subtitle uridecodebin transform
* them into warnings and disable the subtitles */
if (group && group->suburidecodebin) {
GstObject *srcparent = gst_object_get_parent (GST_OBJECT_CAST (msg->src));
if (G_UNLIKELY (gst_object_has_ancestor (msg->src, GST_OBJECT_CAST
(group->suburidecodebin))
&& GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR)) {
GError *err;
gchar *debug = NULL;
GstMessage *new_msg;
GstIterator *it;
gboolean done = FALSE;
gst_message_parse_error (msg, &err, &debug);
new_msg = gst_message_new_warning (msg->src, err, debug);
gst_message_unref (msg);
g_error_free (err);
g_free (debug);
msg = new_msg;
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
it = gst_element_iterate_src_pads (group->suburidecodebin);
while (it && !done) {
GstPad *p = NULL;
GstIteratorResult res;
res = gst_iterator_next (it, (gpointer) & p);
switch (res) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
pad_removed_cb (NULL, p, group);
gst_object_unref (p);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
}
}
if (it)
gst_iterator_free (it);
gst_object_ref (group->suburidecodebin);
gst_bin_remove (bin, group->suburidecodebin);
gst_element_set_locked_state (group->suburidecodebin, FALSE);
if (group->sub_pending) {
group->sub_pending = FALSE;
no_more_pads_cb (NULL, group);
/* Drop all stream-changed messages except the last one */
if (strcmp ("playbin2-stream-changed", gst_structure_get_name (s)) == 0) {
group = playbin->curr_group;
if (!g_atomic_int_dec_and_test (&group->stream_changed_pending)) {
gst_message_unref (msg);
msg = NULL;
}
}
} else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
/* If we get an error of the subtitle uridecodebin transform
* them into warnings and disable the subtitles */
group = playbin->curr_group;
if (group && group->suburidecodebin) {
if (srcparent)
gst_object_unref (srcparent);
GstObject *srcparent = gst_object_get_parent (GST_OBJECT_CAST (msg->src));
if (G_UNLIKELY (gst_object_has_ancestor (msg->src, GST_OBJECT_CAST
(group->suburidecodebin)))) {
GError *err;
gchar *debug = NULL;
GstMessage *new_msg;
GstIterator *it;
gboolean done = FALSE;
gst_message_parse_error (msg, &err, &debug);
new_msg = gst_message_new_warning (msg->src, err, debug);
gst_message_unref (msg);
g_error_free (err);
g_free (debug);
msg = new_msg;
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
it = gst_element_iterate_src_pads (group->suburidecodebin);
while (it && !done) {
GstPad *p = NULL;
GstIteratorResult res;
res = gst_iterator_next (it, (gpointer) & p);
switch (res) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
pad_removed_cb (NULL, p, group);
gst_object_unref (p);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
}
}
if (it)
gst_iterator_free (it);
gst_object_ref (group->suburidecodebin);
gst_bin_remove (bin, group->suburidecodebin);
gst_element_set_locked_state (group->suburidecodebin, FALSE);
if (group->sub_pending) {
group->sub_pending = FALSE;
no_more_pads_cb (NULL, group);
}
}
if (srcparent)
gst_object_unref (srcparent);
}
}
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
if (msg)
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
}
static void
@ -2549,6 +2562,25 @@ no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group)
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
GstSourceSelect *select = &group->selector[i];
/* Wait for stream-changed messages on all selectors except
* the text selector because of the sparse nature of text streams.
*/
if (select->sinkpad && select->type != GST_PLAY_SINK_TYPE_TEXT) {
GstStructure *s;
GstMessage *msg;
GstEvent *event;
s = gst_structure_new ("playbin2-stream-changed", "uri", G_TYPE_STRING,
group->uri, NULL);
if (group->suburi)
gst_structure_set (s, "suburi", G_TYPE_STRING, group->suburi, NULL);
msg = gst_message_new_element (GST_OBJECT_CAST (playbin), s);
event = gst_event_new_sink_message (msg);
g_atomic_int_inc (&group->stream_changed_pending);
gst_pad_send_event (select->sinkpad, event);
gst_message_unref (msg);
}
if (select->srcpad) {
GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
select->srcpad);
@ -2820,6 +2852,8 @@ activate_group (GstPlayBin * playbin, GstSourceGroup * group, GstState target)
GST_DEBUG_OBJECT (playbin, "activating group %p", group);
GST_SOURCE_GROUP_LOCK (group);
group->stream_changed_pending = 0;
if (group->uridecodebin) {
GST_DEBUG_OBJECT (playbin, "reusing existing uridecodebin");
uridecodebin = group->uridecodebin;