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gst/playback/gstplaybasebin.*: Make the subtitle detection work from any thread so we don't deadlock. Fixes #343397.

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Original commit message from CVS:
* gst/playback/gstplaybasebin.c: (group_create), (group_commit),
(setup_source):
* gst/playback/gstplaybasebin.h:
Make the subtitle detection work from any thread so we don't
deadlock. Fixes #343397.
This commit is contained in:
Wim Taymans 2006-06-02 10:34:12 +00:00
parent 81b007feef
commit 571ba11a3b
3 changed files with 58 additions and 25 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2006-06-02 Wim Taymans <wim@fluendo.com>
* gst/playback/gstplaybasebin.c: (group_create), (group_commit),
(setup_source):
* gst/playback/gstplaybasebin.h:
Make the subtitle detection work from any thread so we don't
deadlock. Fixes #343397.
2006-06-02 Thomas Vander Stichele <thomas at apestaart dot org>
* gst/volume/Makefile.am:

74
gst/playback/gstplaybasebin.c
View file

@ -271,6 +271,8 @@ group_create (GstPlayBaseBin * play_base_bin)
group->bin = play_base_bin;
group->streaminfo_value_array = g_value_array_new (0);
GST_DEBUG_OBJECT (play_base_bin, "created new group %p", group);
return group;
}
@ -400,6 +402,9 @@ group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
group = play_base_bin->building_group;
had_active_group = (get_active_group (play_base_bin) != NULL);
GST_DEBUG_OBJECT (play_base_bin, "commit group %p, had active %d",
group, had_active_group);
/* if an element signalled a no-more-pads after we stopped due
* to preroll, the group is NULL. This is not an error */
if (group == NULL) {
@ -407,40 +412,49 @@ group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
GROUP_UNLOCK (play_base_bin);
return;
} else {
GST_DEBUG ("Group loading failed, bailing out");
GST_DEBUG_OBJECT (play_base_bin, "Group loading failed, bailing out");
}
} else if (!subtitle) {
gint n;
} else {
if (!subtitle) {
gint n;
GST_DEBUG ("group %p done", group);
GST_DEBUG_OBJECT (play_base_bin, "group %p done", group);
play_base_bin->queued_groups = g_list_append (play_base_bin->queued_groups,
group);
play_base_bin->queued_groups =
g_list_append (play_base_bin->queued_groups, group);
play_base_bin->building_group = NULL;
play_base_bin->building_group = NULL;
/* remove signals. We don't want anymore signals from the preroll
* elements at this stage. */
for (n = 0; n < NUM_TYPES; n++) {
GstElement *element = group->type[n].preroll;
guint sig_id;
/* remove signals. We don't want anymore signals from the preroll
* elements at this stage. */
for (n = 0; n < NUM_TYPES; n++) {
GstElement *element = group->type[n].preroll;
guint sig_id;
if (!element)
continue;
if (!element)
continue;
sig_id =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (element), "signal_id"));
sig_id =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (element),
"signal_id"));
if (sig_id) {
GST_LOG ("removing preroll signal %s", GST_ELEMENT_NAME (element));
g_signal_handler_disconnect (G_OBJECT (element), sig_id);
if (sig_id) {
GST_LOG_OBJECT (play_base_bin, "removing preroll signal %s",
GST_ELEMENT_NAME (element));
g_signal_handler_disconnect (G_OBJECT (element), sig_id);
}
}
} else {
/* this is a special subtitle bin, we don't commit the group but
* mark the subtitles as detected before se signal. */
GST_DEBUG_OBJECT (play_base_bin, "marking subtitle bin as complete");
play_base_bin->subtitle_done = TRUE;
}
}
GST_DEBUG ("signal group done");
GST_DEBUG_OBJECT (play_base_bin, "signal group done");
GROUP_SIGNAL (play_base_bin);
GST_DEBUG ("signaled group done");
GST_DEBUG_OBJECT (play_base_bin, "signaled group done");
if (!subtitle && !had_active_group) {
if (!prepare_output (play_base_bin)) {
@ -449,10 +463,10 @@ group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
}
setup_substreams (play_base_bin);
GST_DEBUG ("Emitting signal");
GST_DEBUG_OBJECT (play_base_bin, "Emitting signal");
res = GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->
setup_output_pads (play_base_bin, group);
GST_DEBUG ("done");
GST_DEBUG_OBJECT (play_base_bin, "done");
GROUP_UNLOCK (play_base_bin);
@ -1346,6 +1360,8 @@ setup_source (GstPlayBaseBin * play_base_bin, gchar ** new_location)
if (!play_base_bin->need_rebuild)
return TRUE;
GST_DEBUG_OBJECT (play_base_bin, "setup source");
/* delete old src */
if (play_base_bin->source) {
GST_DEBUG_OBJECT (play_base_bin, "removing old src element");
@ -1394,12 +1410,20 @@ setup_source (GstPlayBaseBin * play_base_bin, gchar ** new_location)
* has no more dynamic streams, the cond is unlocked. We can remove
* the signal handlers then
*/
GST_DEBUG_OBJECT (play_base_bin, "starting subtitle bin");
/* for subtitles in a separate bin we will not commit the
* current building group since we need to add the other
* audio/video streams to the group. We check if we managed
* to commit the subtitle group using an extra flag. */
play_base_bin->subtitle_done = FALSE;
gst_element_set_state (subbin, GST_STATE_PAUSED);
GROUP_LOCK (play_base_bin);
GST_DEBUG ("waiting for first group...");
GROUP_WAIT (play_base_bin);
GST_DEBUG ("waiting for subtitle to complete...");
while (!play_base_bin->subtitle_done)
GROUP_WAIT (play_base_bin);
GST_DEBUG ("group done !");
GROUP_UNLOCK (play_base_bin);

1
gst/playback/gstplaybasebin.h
View file

@ -80,6 +80,7 @@ struct _GstPlayBaseBin {
GstElement *source;
GstElement *decoder;
GstElement *subtitle; /* additional filesrc ! subparse bin */
gboolean subtitle_done;
GSList *subtitle_elements; /* subtitle elements that have 'subtitle-encoding' property */
gchar *subencoding; /* encoding to propagate to the above subtitle elements */
gboolean need_rebuild;