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 =
104 GST_STATIC_PAD_TEMPLATE ("src_%u",
107 GST_STATIC_CAPS_ANY);
109 /* structure and quark to keep track of which pads have been pushed */
110 static GQuark push_data;
113 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element"); \
114 push_data = g_quark_from_static_string ("tee-push-data");
115 #define gst_tee_parent_class parent_class
116 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
118 static GParamSpec *pspec_last_message = NULL;
119 static GParamSpec *pspec_alloc_pad = NULL;
124 GstFlowReturn result;
128 static GstPad *gst_tee_request_new_pad (GstElement * element,
129 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
130 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
132 static void gst_tee_finalize (GObject * object);
133 static void gst_tee_set_property (GObject * object, guint prop_id,
134 const GValue * value, GParamSpec * pspec);
135 static void gst_tee_get_property (GObject * object, guint prop_id,
136 GValue * value, GParamSpec * pspec);
137 static void gst_tee_dispose (GObject * object);
139 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
141 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
142 GstBufferList * list);
143 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
145 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
147 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
148 GstPadMode mode, gboolean active);
149 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
151 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
152 GstPadMode mode, gboolean active);
153 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
154 guint64 offset, guint length, GstBuffer ** buf);
157 gst_tee_dispose (GObject * object)
162 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
163 GstPad *pad = GST_PAD (item->data);
164 if (GST_PAD_IS_SRC (pad)) {
165 gst_element_release_request_pad (GST_ELEMENT (object), pad);
170 G_OBJECT_CLASS (parent_class)->dispose (object);
174 gst_tee_finalize (GObject * object)
178 tee = GST_TEE (object);
180 g_free (tee->last_message);
182 g_mutex_free (tee->dyn_lock);
184 G_OBJECT_CLASS (parent_class)->finalize (object);
188 gst_tee_class_init (GstTeeClass * klass)
190 GObjectClass *gobject_class;
191 GstElementClass *gstelement_class;
193 gobject_class = G_OBJECT_CLASS (klass);
194 gstelement_class = GST_ELEMENT_CLASS (klass);
196 gobject_class->finalize = gst_tee_finalize;
197 gobject_class->set_property = gst_tee_set_property;
198 gobject_class->get_property = gst_tee_get_property;
199 gobject_class->dispose = gst_tee_dispose;
201 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
202 g_param_spec_int ("num-src-pads", "Num Src Pads",
203 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
204 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
205 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
206 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
207 "If the element should spawn a thread (unimplemented and deprecated)",
208 DEFAULT_PROP_HAS_SINK_LOOP,
209 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
210 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
211 g_param_spec_boolean ("has-chain", "Has Chain",
212 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
213 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
214 g_object_class_install_property (gobject_class, PROP_SILENT,
215 g_param_spec_boolean ("silent", "Silent",
216 "Don't produce last_message events", DEFAULT_PROP_SILENT,
217 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
218 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
219 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
220 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
221 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
223 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
224 g_param_spec_enum ("pull-mode", "Pull mode",
225 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
227 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
228 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
229 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
230 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
231 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
234 gst_element_class_set_details_simple (gstelement_class,
237 "1-to-N pipe fitting",
238 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
239 gst_element_class_add_pad_template (gstelement_class,
240 gst_static_pad_template_get (&sinktemplate));
241 gst_element_class_add_pad_template (gstelement_class,
242 gst_static_pad_template_get (&tee_src_template));
244 gstelement_class->request_new_pad =
245 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
246 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
250 gst_tee_init (GstTee * tee)
252 tee->dyn_lock = g_mutex_new ();
254 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
255 tee->sink_mode = GST_PAD_MODE_NONE;
257 gst_pad_set_event_function (tee->sinkpad,
258 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
259 gst_pad_set_query_function (tee->sinkpad,
260 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
261 gst_pad_set_activatemode_function (tee->sinkpad,
262 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
263 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
264 gst_pad_set_chain_list_function (tee->sinkpad,
265 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
266 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
267 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
269 tee->last_message = NULL;
273 gst_tee_notify_alloc_pad (GstTee * tee)
275 #if !GLIB_CHECK_VERSION(2,26,0)
276 g_object_notify ((GObject *) tee, "alloc-pad");
278 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
283 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
285 GstPad *srcpad = GST_PAD_CAST (user_data);
287 gst_pad_push_event (srcpad, gst_event_ref (*event));
293 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
294 const gchar * unused, const GstCaps * caps)
303 tee = GST_TEE (element);
305 GST_DEBUG_OBJECT (tee, "requesting pad");
307 GST_OBJECT_LOCK (tee);
308 name = g_strdup_printf ("src_%u", tee->pad_counter++);
310 srcpad = gst_pad_new_from_template (templ, name);
313 mode = tee->sink_mode;
315 /* install the data, we automatically free it when the pad is disposed because
316 * of _release_pad or when the element goes away. */
317 data = g_new0 (PushData, 1);
318 data->pushed = FALSE;
319 data->result = GST_FLOW_NOT_LINKED;
320 data->removed = FALSE;
321 g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
323 GST_OBJECT_UNLOCK (tee);
326 case GST_PAD_MODE_PULL:
327 /* we already have a src pad in pull mode, and our pull mode can only be
328 SINGLE, so fall through to activate this new pad in push mode */
329 case GST_PAD_MODE_PUSH:
330 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
338 goto activate_failed;
340 gst_pad_set_activatemode_function (srcpad,
341 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
342 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
343 gst_pad_set_getrange_function (srcpad,
344 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
345 /* Forward sticky events to the new srcpad */
346 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
347 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
348 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
355 gboolean changed = FALSE;
357 GST_OBJECT_LOCK (tee);
358 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
359 if (tee->allocpad == srcpad) {
360 tee->allocpad = NULL;
363 GST_OBJECT_UNLOCK (tee);
364 gst_object_unref (srcpad);
366 gst_tee_notify_alloc_pad (tee);
373 gst_tee_release_pad (GstElement * element, GstPad * pad)
377 gboolean changed = FALSE;
379 tee = GST_TEE (element);
381 GST_DEBUG_OBJECT (tee, "releasing pad");
383 /* wait for pending pad_alloc to finish */
384 GST_TEE_DYN_LOCK (tee);
385 data = g_object_get_qdata (G_OBJECT (pad), push_data);
387 GST_OBJECT_LOCK (tee);
388 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
389 data->removed = TRUE;
390 if (tee->allocpad == pad) {
391 tee->allocpad = NULL;
394 GST_OBJECT_UNLOCK (tee);
396 gst_object_ref (pad);
397 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
399 gst_pad_set_active (pad, FALSE);
400 GST_TEE_DYN_UNLOCK (tee);
402 gst_object_unref (pad);
405 gst_tee_notify_alloc_pad (tee);
410 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
413 GstTee *tee = GST_TEE (object);
415 GST_OBJECT_LOCK (tee);
417 case PROP_HAS_SINK_LOOP:
418 tee->has_sink_loop = g_value_get_boolean (value);
419 if (tee->has_sink_loop) {
420 g_warning ("tee will never implement has-sink-loop==TRUE");
424 tee->has_chain = g_value_get_boolean (value);
427 tee->silent = g_value_get_boolean (value);
430 tee->pull_mode = g_value_get_enum (value);
434 GstPad *pad = g_value_get_object (value);
435 GST_OBJECT_LOCK (pad);
436 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
439 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
440 " is not my pad", GST_OBJECT_NAME (pad));
441 GST_OBJECT_UNLOCK (pad);
445 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
448 GST_OBJECT_UNLOCK (tee);
452 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
455 GstTee *tee = GST_TEE (object);
457 GST_OBJECT_LOCK (tee);
459 case PROP_NUM_SRC_PADS:
460 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
462 case PROP_HAS_SINK_LOOP:
463 g_value_set_boolean (value, tee->has_sink_loop);
466 g_value_set_boolean (value, tee->has_chain);
469 g_value_set_boolean (value, tee->silent);
471 case PROP_LAST_MESSAGE:
472 g_value_set_string (value, tee->last_message);
475 g_value_set_enum (value, tee->pull_mode);
478 g_value_set_object (value, tee->allocpad);
481 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
484 GST_OBJECT_UNLOCK (tee);
488 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
492 switch (GST_EVENT_TYPE (event)) {
494 res = gst_pad_event_default (pad, parent, event);
502 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
506 switch (GST_QUERY_TYPE (query)) {
508 res = gst_pad_query_default (pad, parent, query);
515 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
517 GST_OBJECT_LOCK (tee);
518 g_free (tee->last_message);
521 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
522 GST_DEBUG_PAD_NAME (pad), data);
525 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
526 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
527 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
529 GST_OBJECT_UNLOCK (tee);
531 #if !GLIB_CHECK_VERSION(2,26,0)
532 g_object_notify ((GObject *) tee, "last-message");
534 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
539 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
544 if (pad == tee->pull_pad) {
545 /* don't push on the pad we're pulling from */
547 } else if (is_list) {
549 gst_pad_push_list (pad,
550 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
552 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
558 clear_pads (GstPad * pad, GstTee * tee)
562 data = g_object_get_qdata ((GObject *) pad, push_data);
564 /* the data must be there or we have a screwed up internal state */
565 g_assert (data != NULL);
567 data->pushed = FALSE;
568 data->result = GST_FLOW_NOT_LINKED;
572 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
576 GstFlowReturn ret, cret;
578 if (G_UNLIKELY (!tee->silent))
579 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
581 GST_OBJECT_LOCK (tee);
582 pads = GST_ELEMENT_CAST (tee)->srcpads;
584 /* special case for zero pads */
585 if (G_UNLIKELY (!pads))
588 /* special case for just one pad that avoids reffing the buffer */
590 GstPad *pad = GST_PAD_CAST (pads->data);
592 GST_OBJECT_UNLOCK (tee);
594 if (pad == tee->pull_pad) {
596 } else if (is_list) {
597 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
599 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
604 /* mark all pads as 'not pushed on yet' */
605 g_list_foreach (pads, (GFunc) clear_pads, tee);
608 cret = GST_FLOW_NOT_LINKED;
609 pads = GST_ELEMENT_CAST (tee)->srcpads;
610 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
616 pad = GST_PAD_CAST (pads->data);
618 /* get the private data, something is really wrong with the internal state
619 * when it is not there */
620 pdata = g_object_get_qdata ((GObject *) pad, push_data);
621 g_assert (pdata != NULL);
623 if (G_LIKELY (!pdata->pushed)) {
624 /* not yet pushed, release lock and start pushing */
625 gst_object_ref (pad);
626 GST_OBJECT_UNLOCK (tee);
628 GST_LOG_OBJECT (tee, "Starting to push %s %p",
629 is_list ? "list" : "buffer", data);
631 ret = gst_tee_do_push (tee, pad, data, is_list);
633 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
634 gst_flow_get_name (ret));
636 GST_OBJECT_LOCK (tee);
637 /* keep track of which pad we pushed and the result value. We need to do
638 * this before we release the refcount on the pad, the PushData is
639 * destroyed when the last ref of the pad goes away. */
640 pdata->pushed = TRUE;
642 gst_object_unref (pad);
644 /* already pushed, use previous return value */
646 GST_LOG_OBJECT (tee, "pad already pushed with %s",
647 gst_flow_get_name (ret));
650 /* before we go combining the return value, check if the pad list is still
651 * the same. It could be possible that the pad we just pushed was removed
652 * and the return value it not valid anymore */
653 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
654 GST_LOG_OBJECT (tee, "pad list changed");
655 /* the list of pads changed, restart iteration. Pads that we already
656 * pushed on and are still in the new list, will not be pushed on
661 /* stop pushing more buffers when we have a fatal error */
662 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
665 /* keep all other return values, overwriting the previous one. */
666 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
667 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
670 pads = g_list_next (pads);
672 GST_OBJECT_UNLOCK (tee);
674 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
676 /* no need to unset gvalue */
682 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
683 ret = GST_FLOW_NOT_LINKED;
688 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
689 GST_OBJECT_UNLOCK (tee);
690 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
696 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
701 tee = GST_TEE_CAST (parent);
703 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
705 res = gst_tee_handle_data (tee, buffer, FALSE);
707 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
713 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
718 tee = GST_TEE_CAST (parent);
720 GST_DEBUG_OBJECT (tee, "received list %p", list);
722 res = gst_tee_handle_data (tee, list, TRUE);
724 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
730 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
736 tee = GST_TEE (parent);
739 case GST_PAD_MODE_PUSH:
741 GST_OBJECT_LOCK (tee);
742 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
744 if (active && !tee->has_chain)
746 GST_OBJECT_UNLOCK (tee);
759 GST_OBJECT_UNLOCK (tee);
760 GST_INFO_OBJECT (tee,
761 "Tee cannot operate in push mode with has-chain==FALSE");
767 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
774 tee = GST_TEE (parent);
777 case GST_PAD_MODE_PULL:
779 GST_OBJECT_LOCK (tee);
781 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
784 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
785 goto cannot_pull_multiple_srcs;
787 sinkpad = gst_object_ref (tee->sinkpad);
789 GST_OBJECT_UNLOCK (tee);
791 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
792 gst_object_unref (sinkpad);
795 goto sink_activate_failed;
797 GST_OBJECT_LOCK (tee);
799 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
802 if (pad == tee->pull_pad)
803 tee->pull_pad = NULL;
805 tee->sink_mode = active & GST_PAD_MODE_PULL;
806 GST_OBJECT_UNLOCK (tee);
818 GST_OBJECT_UNLOCK (tee);
819 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
823 cannot_pull_multiple_srcs:
825 GST_OBJECT_UNLOCK (tee);
826 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
827 "pull-mode set to SINGLE");
830 sink_activate_failed:
832 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
839 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
845 tee = GST_TEE (parent);
847 switch (GST_QUERY_TYPE (query)) {
848 case GST_QUERY_SCHEDULING:
852 GST_OBJECT_LOCK (tee);
854 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
855 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
858 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
859 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
860 "pull-mode set to SINGLE");
864 sinkpad = gst_object_ref (tee->sinkpad);
865 GST_OBJECT_UNLOCK (tee);
868 /* ask peer if we can operate in pull mode */
869 res = gst_pad_peer_query (sinkpad, query);
873 gst_object_unref (sinkpad);
877 res = gst_pad_query_default (pad, parent, query);
885 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
887 GstPad *pad = g_value_get_object (vpad);
889 if (pad != tee->pull_pad)
890 gst_pad_push_event (pad, gst_event_new_eos ());
894 gst_tee_pull_eos (GstTee * tee)
898 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
899 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
901 gst_iterator_free (iter);
905 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
906 guint length, GstBuffer ** buf)
911 tee = GST_TEE (parent);
913 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
915 if (ret == GST_FLOW_OK)
916 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
917 else if (ret == GST_FLOW_EOS)
918 gst_tee_pull_eos (tee);