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
51 #include "gst/glib-compat-private.h"
55 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
60 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
61 #define GST_CAT_DEFAULT gst_tee_debug
63 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
65 gst_tee_pull_mode_get_type (void)
67 static GType type = 0;
68 static const GEnumValue data[] = {
69 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
70 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
76 type = g_enum_register_static ("GstTeePullMode", data);
81 /* lock to protect request pads from being removed while downstream */
82 #define GST_TEE_DYN_LOCK(tee) g_mutex_lock (&(tee)->dyn_lock)
83 #define GST_TEE_DYN_UNLOCK(tee) g_mutex_unlock (&(tee)->dyn_lock)
85 #define DEFAULT_PROP_NUM_SRC_PADS 0
86 #define DEFAULT_PROP_HAS_SINK_LOOP FALSE
87 #define DEFAULT_PROP_HAS_CHAIN TRUE
88 #define DEFAULT_PROP_SILENT TRUE
89 #define DEFAULT_PROP_LAST_MESSAGE NULL
90 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
104 static GstStaticPadTemplate tee_src_template =
105 GST_STATIC_PAD_TEMPLATE ("src_%u",
108 GST_STATIC_CAPS_ANY);
111 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
112 #define gst_tee_parent_class parent_class
113 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
115 static GParamSpec *pspec_last_message = NULL;
116 static GParamSpec *pspec_alloc_pad = NULL;
118 GType gst_tee_pad_get_type (void);
120 #define GST_TYPE_TEE_PAD \
121 (gst_tee_pad_get_type())
122 #define GST_TEE_PAD(obj) \
123 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
124 #define GST_TEE_PAD_CLASS(klass) \
125 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
126 #define GST_IS_TEE_PAD(obj) \
127 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
128 #define GST_IS_TEE_PAD_CLASS(klass) \
129 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
130 #define GST_TEE_PAD_CAST(obj) \
133 typedef struct _GstTeePad GstTeePad;
134 typedef struct _GstTeePadClass GstTeePadClass;
141 GstFlowReturn result;
145 struct _GstTeePadClass
150 G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
153 gst_tee_pad_class_init (GstTeePadClass * klass)
158 gst_tee_pad_reset (GstTeePad * pad)
161 pad->result = GST_FLOW_NOT_LINKED;
162 pad->removed = FALSE;
166 gst_tee_pad_init (GstTeePad * pad)
168 gst_tee_pad_reset (pad);
171 static GstPad *gst_tee_request_new_pad (GstElement * element,
172 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
173 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
175 static void gst_tee_finalize (GObject * object);
176 static void gst_tee_set_property (GObject * object, guint prop_id,
177 const GValue * value, GParamSpec * pspec);
178 static void gst_tee_get_property (GObject * object, guint prop_id,
179 GValue * value, GParamSpec * pspec);
180 static void gst_tee_dispose (GObject * object);
182 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
184 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
185 GstBufferList * list);
186 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
188 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
190 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
191 GstPadMode mode, gboolean active);
192 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
194 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
195 GstPadMode mode, gboolean active);
196 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
197 guint64 offset, guint length, GstBuffer ** buf);
200 gst_tee_dispose (GObject * object)
205 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
206 GstPad *pad = GST_PAD (item->data);
207 if (GST_PAD_IS_SRC (pad)) {
208 gst_element_release_request_pad (GST_ELEMENT (object), pad);
213 G_OBJECT_CLASS (parent_class)->dispose (object);
217 gst_tee_finalize (GObject * object)
221 tee = GST_TEE (object);
223 g_free (tee->last_message);
225 g_mutex_clear (&tee->dyn_lock);
227 G_OBJECT_CLASS (parent_class)->finalize (object);
231 gst_tee_class_init (GstTeeClass * klass)
233 GObjectClass *gobject_class;
234 GstElementClass *gstelement_class;
236 gobject_class = G_OBJECT_CLASS (klass);
237 gstelement_class = GST_ELEMENT_CLASS (klass);
239 gobject_class->finalize = gst_tee_finalize;
240 gobject_class->set_property = gst_tee_set_property;
241 gobject_class->get_property = gst_tee_get_property;
242 gobject_class->dispose = gst_tee_dispose;
244 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
245 g_param_spec_int ("num-src-pads", "Num Src Pads",
246 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
247 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
248 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
249 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
250 "If the element should spawn a thread (unimplemented and deprecated)",
251 DEFAULT_PROP_HAS_SINK_LOOP,
252 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
253 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
254 g_param_spec_boolean ("has-chain", "Has Chain",
255 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
256 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
257 g_object_class_install_property (gobject_class, PROP_SILENT,
258 g_param_spec_boolean ("silent", "Silent",
259 "Don't produce last_message events", DEFAULT_PROP_SILENT,
260 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
261 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
262 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
263 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
264 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
266 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
267 g_param_spec_enum ("pull-mode", "Pull mode",
268 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
270 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
271 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
272 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
273 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
274 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
277 gst_element_class_set_static_metadata (gstelement_class,
280 "1-to-N pipe fitting",
281 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
282 gst_element_class_add_pad_template (gstelement_class,
283 gst_static_pad_template_get (&sinktemplate));
284 gst_element_class_add_pad_template (gstelement_class,
285 gst_static_pad_template_get (&tee_src_template));
287 gstelement_class->request_new_pad =
288 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
289 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
293 gst_tee_init (GstTee * tee)
295 g_mutex_init (&tee->dyn_lock);
297 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
298 tee->sink_mode = GST_PAD_MODE_NONE;
300 gst_pad_set_event_function (tee->sinkpad,
301 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
302 gst_pad_set_query_function (tee->sinkpad,
303 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
304 gst_pad_set_activatemode_function (tee->sinkpad,
305 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
306 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
307 gst_pad_set_chain_list_function (tee->sinkpad,
308 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
309 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
310 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
312 tee->last_message = NULL;
316 gst_tee_notify_alloc_pad (GstTee * tee)
318 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
322 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
324 GstPad *srcpad = GST_PAD_CAST (user_data);
326 gst_pad_push_event (srcpad, gst_event_ref (*event));
332 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
333 const gchar * unused, const GstCaps * caps)
341 tee = GST_TEE (element);
343 GST_DEBUG_OBJECT (tee, "requesting pad");
345 GST_OBJECT_LOCK (tee);
346 name = g_strdup_printf ("src_%u", tee->pad_counter++);
348 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
349 "name", name, "direction", templ->direction, "template", templ,
353 mode = tee->sink_mode;
355 GST_OBJECT_UNLOCK (tee);
358 case GST_PAD_MODE_PULL:
359 /* we already have a src pad in pull mode, and our pull mode can only be
360 SINGLE, so fall through to activate this new pad in push mode */
361 case GST_PAD_MODE_PUSH:
362 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
370 goto activate_failed;
372 gst_pad_set_activatemode_function (srcpad,
373 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
374 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
375 gst_pad_set_getrange_function (srcpad,
376 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
377 /* Forward sticky events to the new srcpad */
378 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
379 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
380 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
387 gboolean changed = FALSE;
389 GST_OBJECT_LOCK (tee);
390 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
391 if (tee->allocpad == srcpad) {
392 tee->allocpad = NULL;
395 GST_OBJECT_UNLOCK (tee);
396 gst_object_unref (srcpad);
398 gst_tee_notify_alloc_pad (tee);
405 gst_tee_release_pad (GstElement * element, GstPad * pad)
408 gboolean changed = FALSE;
410 tee = GST_TEE (element);
412 GST_DEBUG_OBJECT (tee, "releasing pad");
414 /* wait for pending pad_alloc to finish */
415 GST_TEE_DYN_LOCK (tee);
416 GST_OBJECT_LOCK (tee);
417 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
418 GST_TEE_PAD_CAST (pad)->removed = TRUE;
419 if (tee->allocpad == pad) {
420 tee->allocpad = NULL;
423 GST_OBJECT_UNLOCK (tee);
425 gst_object_ref (pad);
426 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
428 gst_pad_set_active (pad, FALSE);
429 GST_TEE_DYN_UNLOCK (tee);
431 gst_object_unref (pad);
434 gst_tee_notify_alloc_pad (tee);
439 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
442 GstTee *tee = GST_TEE (object);
444 GST_OBJECT_LOCK (tee);
446 case PROP_HAS_SINK_LOOP:
447 tee->has_sink_loop = g_value_get_boolean (value);
448 if (tee->has_sink_loop) {
449 g_warning ("tee will never implement has-sink-loop==TRUE");
453 tee->has_chain = g_value_get_boolean (value);
456 tee->silent = g_value_get_boolean (value);
459 tee->pull_mode = g_value_get_enum (value);
463 GstPad *pad = g_value_get_object (value);
464 GST_OBJECT_LOCK (pad);
465 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
468 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
469 " is not my pad", GST_OBJECT_NAME (pad));
470 GST_OBJECT_UNLOCK (pad);
474 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
477 GST_OBJECT_UNLOCK (tee);
481 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
484 GstTee *tee = GST_TEE (object);
486 GST_OBJECT_LOCK (tee);
488 case PROP_NUM_SRC_PADS:
489 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
491 case PROP_HAS_SINK_LOOP:
492 g_value_set_boolean (value, tee->has_sink_loop);
495 g_value_set_boolean (value, tee->has_chain);
498 g_value_set_boolean (value, tee->silent);
500 case PROP_LAST_MESSAGE:
501 g_value_set_string (value, tee->last_message);
504 g_value_set_enum (value, tee->pull_mode);
507 g_value_set_object (value, tee->allocpad);
510 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
513 GST_OBJECT_UNLOCK (tee);
517 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
521 switch (GST_EVENT_TYPE (event)) {
523 res = gst_pad_event_default (pad, parent, event);
531 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
535 switch (GST_QUERY_TYPE (query)) {
537 res = gst_pad_query_default (pad, parent, query);
544 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
546 GST_OBJECT_LOCK (tee);
547 g_free (tee->last_message);
550 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
551 GST_DEBUG_PAD_NAME (pad), data);
554 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
555 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
556 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
558 GST_OBJECT_UNLOCK (tee);
560 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
564 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
569 if (pad == tee->pull_pad) {
570 /* don't push on the pad we're pulling from */
572 } else if (is_list) {
574 gst_pad_push_list (pad,
575 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
577 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
583 clear_pads (GstPad * pad, GstTee * tee)
585 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
586 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
590 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
594 GstFlowReturn ret, cret;
596 if (G_UNLIKELY (!tee->silent))
597 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
599 GST_OBJECT_LOCK (tee);
600 pads = GST_ELEMENT_CAST (tee)->srcpads;
602 /* special case for zero pads */
603 if (G_UNLIKELY (!pads))
606 /* special case for just one pad that avoids reffing the buffer */
608 GstPad *pad = GST_PAD_CAST (pads->data);
610 GST_OBJECT_UNLOCK (tee);
612 if (pad == tee->pull_pad) {
614 } else if (is_list) {
615 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
617 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
622 /* mark all pads as 'not pushed on yet' */
623 g_list_foreach (pads, (GFunc) clear_pads, tee);
626 cret = GST_FLOW_NOT_LINKED;
627 pads = GST_ELEMENT_CAST (tee)->srcpads;
628 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
633 pad = GST_PAD_CAST (pads->data);
635 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
636 /* not yet pushed, release lock and start pushing */
637 gst_object_ref (pad);
638 GST_OBJECT_UNLOCK (tee);
640 GST_LOG_OBJECT (tee, "Starting to push %s %p",
641 is_list ? "list" : "buffer", data);
643 ret = gst_tee_do_push (tee, pad, data, is_list);
645 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
646 gst_flow_get_name (ret));
648 GST_OBJECT_LOCK (tee);
649 /* keep track of which pad we pushed and the result value */
650 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
651 GST_TEE_PAD_CAST (pad)->result = ret;
652 gst_object_unref (pad);
654 /* already pushed, use previous return value */
655 ret = GST_TEE_PAD_CAST (pad)->result;
656 GST_LOG_OBJECT (tee, "pad already pushed with %s",
657 gst_flow_get_name (ret));
660 /* before we go combining the return value, check if the pad list is still
661 * the same. It could be possible that the pad we just pushed was removed
662 * and the return value it not valid anymore */
663 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
664 GST_LOG_OBJECT (tee, "pad list changed");
665 /* the list of pads changed, restart iteration. Pads that we already
666 * pushed on and are still in the new list, will not be pushed on
671 /* stop pushing more buffers when we have a fatal error */
672 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
675 /* keep all other return values, overwriting the previous one. */
676 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
677 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
680 pads = g_list_next (pads);
682 GST_OBJECT_UNLOCK (tee);
684 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
686 /* no need to unset gvalue */
692 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
693 ret = GST_FLOW_NOT_LINKED;
698 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
699 GST_OBJECT_UNLOCK (tee);
700 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
706 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
711 tee = GST_TEE_CAST (parent);
713 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
715 res = gst_tee_handle_data (tee, buffer, FALSE);
717 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
723 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
728 tee = GST_TEE_CAST (parent);
730 GST_DEBUG_OBJECT (tee, "received list %p", list);
732 res = gst_tee_handle_data (tee, list, TRUE);
734 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
740 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
746 tee = GST_TEE (parent);
749 case GST_PAD_MODE_PUSH:
751 GST_OBJECT_LOCK (tee);
752 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
754 if (active && !tee->has_chain)
756 GST_OBJECT_UNLOCK (tee);
769 GST_OBJECT_UNLOCK (tee);
770 GST_INFO_OBJECT (tee,
771 "Tee cannot operate in push mode with has-chain==FALSE");
777 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
784 tee = GST_TEE (parent);
787 case GST_PAD_MODE_PULL:
789 GST_OBJECT_LOCK (tee);
791 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
794 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
795 goto cannot_pull_multiple_srcs;
797 sinkpad = gst_object_ref (tee->sinkpad);
799 GST_OBJECT_UNLOCK (tee);
801 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
802 gst_object_unref (sinkpad);
805 goto sink_activate_failed;
807 GST_OBJECT_LOCK (tee);
809 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
812 if (pad == tee->pull_pad)
813 tee->pull_pad = NULL;
815 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
816 GST_OBJECT_UNLOCK (tee);
823 GST_OBJECT_UNLOCK (tee);
830 GST_OBJECT_UNLOCK (tee);
831 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
835 cannot_pull_multiple_srcs:
837 GST_OBJECT_UNLOCK (tee);
838 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
839 "pull-mode set to SINGLE");
842 sink_activate_failed:
844 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
851 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
857 tee = GST_TEE (parent);
859 switch (GST_QUERY_TYPE (query)) {
860 case GST_QUERY_SCHEDULING:
864 GST_OBJECT_LOCK (tee);
866 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
867 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
870 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
871 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
872 "pull-mode set to SINGLE");
876 sinkpad = gst_object_ref (tee->sinkpad);
877 GST_OBJECT_UNLOCK (tee);
880 /* ask peer if we can operate in pull mode */
881 res = gst_pad_peer_query (sinkpad, query);
885 gst_object_unref (sinkpad);
889 res = gst_pad_query_default (pad, parent, query);
897 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
899 GstPad *pad = g_value_get_object (vpad);
901 if (pad != tee->pull_pad)
902 gst_pad_push_event (pad, gst_event_new_eos ());
906 gst_tee_pull_eos (GstTee * tee)
910 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
911 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
913 gst_iterator_free (iter);
917 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
918 guint length, GstBuffer ** buf)
923 tee = GST_TEE (parent);
925 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
927 if (ret == GST_FLOW_OK)
928 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
929 else if (ret == GST_FLOW_EOS)
930 gst_tee_pull_eos (tee);