2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000,2001,2002,2003,2004,2005 Wim Taymans <wim@fluendo.com>
4 * 2007 Wim Taymans <wim.taymans@gmail.com>
6 * gsttee.c: Tee element, one in N out
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
26 * @see_also: #GstIdentity
28 * Split data to multiple pads. Branching the data flow is useful when e.g.
29 * capturing a video where the video is shown on the screen and also encoded and
30 * written to a file. Another example is playing music and hooking up a
31 * visualisation module.
33 * One needs to use separate queue elements (or a multiqueue) in each branch to
34 * provide separate threads for each branch. Otherwise a blocked dataflow in one
35 * branch would stall the other branches.
38 * <title>Example launch line</title>
40 * gst-launch filesrc location=song.ogg ! decodebin2 ! tee name=t ! queue ! autoaudiosink t. ! queue ! audioconvert ! goom ! ffmpegcolorspace ! autovideosink
41 * ]| Play a song.ogg from local dir and render visualisations using the goom
54 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
59 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
60 #define GST_CAT_DEFAULT gst_tee_debug
62 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
64 gst_tee_pull_mode_get_type (void)
66 static GType type = 0;
67 static const GEnumValue data[] = {
68 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
69 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
75 type = g_enum_register_static ("GstTeePullMode", data);
80 /* lock to protect request pads from being removed while downstream */
81 #define GST_TEE_DYN_LOCK(tee) g_mutex_lock ((tee)->dyn_lock)
82 #define GST_TEE_DYN_UNLOCK(tee) g_mutex_unlock ((tee)->dyn_lock)
84 #define DEFAULT_PROP_NUM_SRC_PADS 0
85 #define DEFAULT_PROP_HAS_SINK_LOOP FALSE
86 #define DEFAULT_PROP_HAS_CHAIN TRUE
87 #define DEFAULT_PROP_SILENT TRUE
88 #define DEFAULT_PROP_LAST_MESSAGE NULL
89 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
103 static GstStaticPadTemplate tee_src_template = GST_STATIC_PAD_TEMPLATE ("src%d",
106 GST_STATIC_CAPS_ANY);
108 /* structure and quark to keep track of which pads have been pushed */
109 static GQuark push_data;
112 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element"); \
113 push_data = g_quark_from_static_string ("tee-push-data");
114 #define gst_tee_parent_class parent_class
115 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
117 static GParamSpec *pspec_last_message = NULL;
118 static GParamSpec *pspec_alloc_pad = NULL;
123 GstFlowReturn result;
127 static GstPad *gst_tee_request_new_pad (GstElement * element,
128 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
129 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
131 static void gst_tee_finalize (GObject * object);
132 static void gst_tee_set_property (GObject * object, guint prop_id,
133 const GValue * value, GParamSpec * pspec);
134 static void gst_tee_get_property (GObject * object, guint prop_id,
135 GValue * value, GParamSpec * pspec);
136 static void gst_tee_dispose (GObject * object);
138 static GstFlowReturn gst_tee_chain (GstPad * pad, GstBuffer * buffer);
139 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstBufferList * list);
140 static gboolean gst_tee_sink_event (GstPad * pad, GstEvent * event);
141 static gboolean gst_tee_sink_acceptcaps (GstPad * pad, GstCaps * caps);
142 static gboolean gst_tee_sink_activate_push (GstPad * pad, gboolean active);
143 static gboolean gst_tee_src_query (GstPad * pad, GstQuery * query);
144 static gboolean gst_tee_src_activate_pull (GstPad * pad, gboolean active);
145 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, guint64 offset,
146 guint length, GstBuffer ** buf);
149 gst_tee_dispose (GObject * object)
154 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
155 GstPad *pad = GST_PAD (item->data);
156 if (GST_PAD_IS_SRC (pad)) {
157 gst_element_release_request_pad (GST_ELEMENT (object), pad);
162 G_OBJECT_CLASS (parent_class)->dispose (object);
166 gst_tee_finalize (GObject * object)
170 tee = GST_TEE (object);
172 g_free (tee->last_message);
174 g_mutex_free (tee->dyn_lock);
176 G_OBJECT_CLASS (parent_class)->finalize (object);
180 gst_tee_class_init (GstTeeClass * klass)
182 GObjectClass *gobject_class;
183 GstElementClass *gstelement_class;
185 gobject_class = G_OBJECT_CLASS (klass);
186 gstelement_class = GST_ELEMENT_CLASS (klass);
188 gobject_class->finalize = gst_tee_finalize;
189 gobject_class->set_property = gst_tee_set_property;
190 gobject_class->get_property = gst_tee_get_property;
191 gobject_class->dispose = gst_tee_dispose;
193 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
194 g_param_spec_int ("num-src-pads", "Num Src Pads",
195 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
196 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
197 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
198 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
199 "If the element should spawn a thread (unimplemented and deprecated)",
200 DEFAULT_PROP_HAS_SINK_LOOP,
201 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
202 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
203 g_param_spec_boolean ("has-chain", "Has Chain",
204 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
205 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
206 g_object_class_install_property (gobject_class, PROP_SILENT,
207 g_param_spec_boolean ("silent", "Silent",
208 "Don't produce last_message events", DEFAULT_PROP_SILENT,
209 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
210 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
211 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
212 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
213 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
215 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
216 g_param_spec_enum ("pull-mode", "Pull mode",
217 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
219 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
220 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
221 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
222 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
223 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
226 gst_element_class_set_details_simple (gstelement_class,
229 "1-to-N pipe fitting",
230 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
231 gst_element_class_add_pad_template (gstelement_class,
232 gst_static_pad_template_get (&sinktemplate));
233 gst_element_class_add_pad_template (gstelement_class,
234 gst_static_pad_template_get (&tee_src_template));
236 gstelement_class->request_new_pad =
237 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
238 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
242 gst_tee_init (GstTee * tee)
244 tee->dyn_lock = g_mutex_new ();
246 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
247 tee->sink_mode = GST_ACTIVATE_NONE;
249 gst_pad_set_event_function (tee->sinkpad,
250 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
251 gst_pad_set_getcaps_function (tee->sinkpad,
252 GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
253 gst_pad_set_acceptcaps_function (tee->sinkpad,
254 GST_DEBUG_FUNCPTR (gst_tee_sink_acceptcaps));
255 gst_pad_set_activatepush_function (tee->sinkpad,
256 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_push));
257 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
258 gst_pad_set_chain_list_function (tee->sinkpad,
259 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
260 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
262 tee->last_message = NULL;
266 gst_tee_notify_alloc_pad (GstTee * tee)
268 #if !GLIB_CHECK_VERSION(2,26,0)
269 g_object_notify ((GObject *) tee, "alloc-pad");
271 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
276 forward_sticky_events (GstPad * pad, GstEvent * event, gpointer user_data)
278 GstPad *srcpad = GST_PAD_CAST (user_data);
280 gst_pad_push_event (srcpad, gst_event_ref (event));
286 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
287 const gchar * unused, const GstCaps * caps)
292 GstActivateMode mode;
296 tee = GST_TEE (element);
298 GST_DEBUG_OBJECT (tee, "requesting pad");
300 GST_OBJECT_LOCK (tee);
301 name = g_strdup_printf ("src%d", tee->pad_counter++);
303 srcpad = gst_pad_new_from_template (templ, name);
306 mode = tee->sink_mode;
308 /* install the data, we automatically free it when the pad is disposed because
309 * of _release_pad or when the element goes away. */
310 data = g_new0 (PushData, 1);
311 data->pushed = FALSE;
312 data->result = GST_FLOW_NOT_LINKED;
313 data->removed = FALSE;
314 g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
316 GST_OBJECT_UNLOCK (tee);
319 case GST_ACTIVATE_PULL:
320 /* we already have a src pad in pull mode, and our pull mode can only be
321 SINGLE, so fall through to activate this new pad in push mode */
322 case GST_ACTIVATE_PUSH:
323 res = gst_pad_activate_push (srcpad, TRUE);
331 goto activate_failed;
333 gst_pad_set_getcaps_function (srcpad,
334 GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
335 gst_pad_set_activatepull_function (srcpad,
336 GST_DEBUG_FUNCPTR (gst_tee_src_activate_pull));
337 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
338 gst_pad_set_getrange_function (srcpad,
339 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
340 /* Forward sticky events to the new srcpad */
341 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
342 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
349 gboolean changed = FALSE;
351 GST_OBJECT_LOCK (tee);
352 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
353 if (tee->allocpad == srcpad) {
354 tee->allocpad = NULL;
357 GST_OBJECT_UNLOCK (tee);
358 gst_object_unref (srcpad);
360 gst_tee_notify_alloc_pad (tee);
367 gst_tee_release_pad (GstElement * element, GstPad * pad)
371 gboolean changed = FALSE;
373 tee = GST_TEE (element);
375 GST_DEBUG_OBJECT (tee, "releasing pad");
377 /* wait for pending pad_alloc to finish */
378 GST_TEE_DYN_LOCK (tee);
379 data = g_object_get_qdata (G_OBJECT (pad), push_data);
381 GST_OBJECT_LOCK (tee);
382 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
383 data->removed = TRUE;
384 if (tee->allocpad == pad) {
385 tee->allocpad = NULL;
388 GST_OBJECT_UNLOCK (tee);
390 gst_object_ref (pad);
391 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
393 gst_pad_set_active (pad, FALSE);
394 GST_TEE_DYN_UNLOCK (tee);
396 gst_object_unref (pad);
399 gst_tee_notify_alloc_pad (tee);
404 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
407 GstTee *tee = GST_TEE (object);
409 GST_OBJECT_LOCK (tee);
411 case PROP_HAS_SINK_LOOP:
412 tee->has_sink_loop = g_value_get_boolean (value);
413 if (tee->has_sink_loop) {
414 g_warning ("tee will never implement has-sink-loop==TRUE");
418 tee->has_chain = g_value_get_boolean (value);
421 tee->silent = g_value_get_boolean (value);
424 tee->pull_mode = g_value_get_enum (value);
428 GstPad *pad = g_value_get_object (value);
429 GST_OBJECT_LOCK (pad);
430 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
433 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
434 " is not my pad", GST_OBJECT_NAME (pad));
435 GST_OBJECT_UNLOCK (pad);
439 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
442 GST_OBJECT_UNLOCK (tee);
446 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
449 GstTee *tee = GST_TEE (object);
451 GST_OBJECT_LOCK (tee);
453 case PROP_NUM_SRC_PADS:
454 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
456 case PROP_HAS_SINK_LOOP:
457 g_value_set_boolean (value, tee->has_sink_loop);
460 g_value_set_boolean (value, tee->has_chain);
463 g_value_set_boolean (value, tee->silent);
465 case PROP_LAST_MESSAGE:
466 g_value_set_string (value, tee->last_message);
469 g_value_set_enum (value, tee->pull_mode);
472 g_value_set_object (value, tee->allocpad);
475 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
478 GST_OBJECT_UNLOCK (tee);
482 gst_tee_sink_event (GstPad * pad, GstEvent * event)
486 switch (GST_EVENT_TYPE (event)) {
488 res = gst_pad_event_default (pad, event);
494 /* on the sink we accept caps that are acceptable to all srcpads */
496 gst_tee_sink_acceptcaps (GstPad * pad, GstCaps * caps)
501 GValue item = { 0, };
503 tee = GST_TEE_CAST (GST_PAD_PARENT (pad));
505 it = gst_element_iterate_src_pads (GST_ELEMENT_CAST (tee));
509 while (!done && res) {
510 switch (gst_iterator_next (it, &item)) {
511 case GST_ITERATOR_OK:
512 res &= gst_pad_peer_accept_caps (g_value_get_object (&item), caps);
513 g_value_reset (&item);
515 case GST_ITERATOR_RESYNC:
517 gst_iterator_resync (it);
519 case GST_ITERATOR_ERROR:
523 case GST_ITERATOR_DONE:
528 g_value_unset (&item);
529 gst_iterator_free (it);
535 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
537 GST_OBJECT_LOCK (tee);
538 g_free (tee->last_message);
541 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
542 GST_DEBUG_PAD_NAME (pad), data);
545 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
546 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
547 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
549 GST_OBJECT_UNLOCK (tee);
551 #if !GLIB_CHECK_VERSION(2,26,0)
552 g_object_notify ((GObject *) tee, "last-message");
554 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
559 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
564 if (pad == tee->pull_pad) {
565 /* don't push on the pad we're pulling from */
567 } else if (is_list) {
569 gst_pad_push_list (pad,
570 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
572 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
578 clear_pads (GstPad * pad, GstTee * tee)
582 data = g_object_get_qdata ((GObject *) pad, push_data);
584 /* the data must be there or we have a screwed up internal state */
585 g_assert (data != NULL);
587 data->pushed = FALSE;
588 data->result = GST_FLOW_NOT_LINKED;
592 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
596 GstFlowReturn ret, cret;
598 if (G_UNLIKELY (!tee->silent))
599 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
601 GST_OBJECT_LOCK (tee);
602 pads = GST_ELEMENT_CAST (tee)->srcpads;
604 /* special case for zero pads */
605 if (G_UNLIKELY (!pads))
608 /* special case for just one pad that avoids reffing the buffer */
610 GstPad *pad = GST_PAD_CAST (pads->data);
612 GST_OBJECT_UNLOCK (tee);
614 if (pad == tee->pull_pad) {
616 } else if (is_list) {
617 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
619 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
624 /* mark all pads as 'not pushed on yet' */
625 g_list_foreach (pads, (GFunc) clear_pads, tee);
628 cret = GST_FLOW_NOT_LINKED;
629 pads = GST_ELEMENT_CAST (tee)->srcpads;
630 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
636 pad = GST_PAD_CAST (pads->data);
638 /* get the private data, something is really wrong with the internal state
639 * when it is not there */
640 pdata = g_object_get_qdata ((GObject *) pad, push_data);
641 g_assert (pdata != NULL);
643 if (G_LIKELY (!pdata->pushed)) {
644 /* not yet pushed, release lock and start pushing */
645 gst_object_ref (pad);
646 GST_OBJECT_UNLOCK (tee);
648 GST_LOG_OBJECT (tee, "Starting to push %s %p",
649 is_list ? "list" : "buffer", data);
651 ret = gst_tee_do_push (tee, pad, data, is_list);
653 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
654 gst_flow_get_name (ret));
656 GST_OBJECT_LOCK (tee);
657 /* keep track of which pad we pushed and the result value. We need to do
658 * this before we release the refcount on the pad, the PushData is
659 * destroyed when the last ref of the pad goes away. */
660 pdata->pushed = TRUE;
662 gst_object_unref (pad);
664 /* already pushed, use previous return value */
666 GST_LOG_OBJECT (tee, "pad already pushed with %s",
667 gst_flow_get_name (ret));
670 /* before we go combining the return value, check if the pad list is still
671 * the same. It could be possible that the pad we just pushed was removed
672 * and the return value it not valid anymore */
673 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
674 GST_LOG_OBJECT (tee, "pad list changed");
675 /* the list of pads changed, restart iteration. Pads that we already
676 * pushed on and are still in the new list, will not be pushed on
681 /* stop pushing more buffers when we have a fatal error */
682 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
685 /* keep all other return values, overwriting the previous one. */
686 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
687 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
690 pads = g_list_next (pads);
692 GST_OBJECT_UNLOCK (tee);
694 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
696 /* no need to unset gvalue */
702 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
703 ret = GST_FLOW_NOT_LINKED;
708 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
709 GST_OBJECT_UNLOCK (tee);
710 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
716 gst_tee_chain (GstPad * pad, GstBuffer * buffer)
721 tee = GST_TEE_CAST (GST_OBJECT_PARENT (pad));
723 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
725 res = gst_tee_handle_data (tee, buffer, FALSE);
727 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
733 gst_tee_chain_list (GstPad * pad, GstBufferList * list)
738 tee = GST_TEE_CAST (gst_pad_get_parent (pad));
740 GST_DEBUG_OBJECT (tee, "received list %p", list);
742 res = gst_tee_handle_data (tee, list, TRUE);
744 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
746 gst_object_unref (tee);
752 gst_tee_sink_activate_push (GstPad * pad, gboolean active)
756 tee = GST_TEE (GST_OBJECT_PARENT (pad));
758 GST_OBJECT_LOCK (tee);
759 tee->sink_mode = active && GST_ACTIVATE_PUSH;
761 if (active && !tee->has_chain)
763 GST_OBJECT_UNLOCK (tee);
770 GST_OBJECT_UNLOCK (tee);
771 GST_INFO_OBJECT (tee,
772 "Tee cannot operate in push mode with has-chain==FALSE");
778 gst_tee_src_activate_pull (GstPad * pad, gboolean active)
784 tee = GST_TEE (gst_pad_get_parent (pad));
786 GST_OBJECT_LOCK (tee);
788 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
791 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
792 goto cannot_pull_multiple_srcs;
794 sinkpad = gst_object_ref (tee->sinkpad);
796 GST_OBJECT_UNLOCK (tee);
798 res = gst_pad_activate_pull (sinkpad, active);
799 gst_object_unref (sinkpad);
802 goto sink_activate_failed;
804 GST_OBJECT_LOCK (tee);
806 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
809 if (pad == tee->pull_pad)
810 tee->pull_pad = NULL;
812 tee->sink_mode = active & GST_ACTIVATE_PULL;
813 GST_OBJECT_UNLOCK (tee);
815 gst_object_unref (tee);
822 GST_OBJECT_UNLOCK (tee);
823 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
825 gst_object_unref (tee);
828 cannot_pull_multiple_srcs:
830 GST_OBJECT_UNLOCK (tee);
831 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
832 "pull-mode set to SINGLE");
833 gst_object_unref (tee);
836 sink_activate_failed:
838 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
840 gst_object_unref (tee);
846 gst_tee_src_query (GstPad * pad, GstQuery * query)
852 tee = GST_TEE (gst_pad_get_parent (pad));
854 switch (GST_QUERY_TYPE (query)) {
855 case GST_QUERY_SCHEDULING:
859 GST_OBJECT_LOCK (tee);
861 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
862 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
865 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
866 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
867 "pull-mode set to SINGLE");
871 sinkpad = gst_object_ref (tee->sinkpad);
872 GST_OBJECT_UNLOCK (tee);
875 /* ask peer if we can operate in pull mode */
876 res = gst_pad_peer_query (sinkpad, query);
880 gst_object_unref (sinkpad);
884 res = gst_pad_query_default (pad, query);
888 gst_object_unref (tee);
894 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
896 GstPad *pad = g_value_get_object (vpad);
898 if (pad != tee->pull_pad)
899 gst_pad_push_event (pad, gst_event_new_eos ());
903 gst_tee_pull_eos (GstTee * tee)
907 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
908 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
910 gst_iterator_free (iter);
914 gst_tee_src_get_range (GstPad * pad, guint64 offset, guint length,
920 tee = GST_TEE (gst_pad_get_parent (pad));
922 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
924 if (ret == GST_FLOW_OK)
925 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
926 else if (ret == GST_FLOW_UNEXPECTED)
927 gst_tee_pull_eos (tee);
929 gst_object_unref (tee);