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., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, 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 ! videoconvert ! 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 #define DEFAULT_PROP_NUM_SRC_PADS 0
82 #define DEFAULT_PROP_HAS_CHAIN TRUE
83 #define DEFAULT_PROP_SILENT TRUE
84 #define DEFAULT_PROP_LAST_MESSAGE NULL
85 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
98 static GstStaticPadTemplate tee_src_template =
99 GST_STATIC_PAD_TEMPLATE ("src_%u",
102 GST_STATIC_CAPS_ANY);
105 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
106 #define gst_tee_parent_class parent_class
107 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
109 static GParamSpec *pspec_last_message = NULL;
110 static GParamSpec *pspec_alloc_pad = NULL;
112 GType gst_tee_pad_get_type (void);
114 #define GST_TYPE_TEE_PAD \
115 (gst_tee_pad_get_type())
116 #define GST_TEE_PAD(obj) \
117 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
118 #define GST_TEE_PAD_CLASS(klass) \
119 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
120 #define GST_IS_TEE_PAD(obj) \
121 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
122 #define GST_IS_TEE_PAD_CLASS(klass) \
123 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
124 #define GST_TEE_PAD_CAST(obj) \
127 typedef struct _GstTeePad GstTeePad;
128 typedef struct _GstTeePadClass GstTeePadClass;
135 GstFlowReturn result;
139 struct _GstTeePadClass
144 G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
147 gst_tee_pad_class_init (GstTeePadClass * klass)
152 gst_tee_pad_reset (GstTeePad * pad)
155 pad->result = GST_FLOW_NOT_LINKED;
156 pad->removed = FALSE;
160 gst_tee_pad_init (GstTeePad * pad)
162 gst_tee_pad_reset (pad);
165 static GstPad *gst_tee_request_new_pad (GstElement * element,
166 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
167 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
169 static void gst_tee_finalize (GObject * object);
170 static void gst_tee_set_property (GObject * object, guint prop_id,
171 const GValue * value, GParamSpec * pspec);
172 static void gst_tee_get_property (GObject * object, guint prop_id,
173 GValue * value, GParamSpec * pspec);
174 static void gst_tee_dispose (GObject * object);
176 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
178 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
179 GstBufferList * list);
180 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
182 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
184 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
185 GstPadMode mode, gboolean active);
186 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
188 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
189 GstPadMode mode, gboolean active);
190 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
191 guint64 offset, guint length, GstBuffer ** buf);
194 gst_tee_dispose (GObject * object)
199 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
200 GstPad *pad = GST_PAD (item->data);
201 if (GST_PAD_IS_SRC (pad)) {
202 gst_element_release_request_pad (GST_ELEMENT (object), pad);
207 G_OBJECT_CLASS (parent_class)->dispose (object);
211 gst_tee_finalize (GObject * object)
215 tee = GST_TEE (object);
217 g_free (tee->last_message);
219 G_OBJECT_CLASS (parent_class)->finalize (object);
223 gst_tee_class_init (GstTeeClass * klass)
225 GObjectClass *gobject_class;
226 GstElementClass *gstelement_class;
228 gobject_class = G_OBJECT_CLASS (klass);
229 gstelement_class = GST_ELEMENT_CLASS (klass);
231 gobject_class->finalize = gst_tee_finalize;
232 gobject_class->set_property = gst_tee_set_property;
233 gobject_class->get_property = gst_tee_get_property;
234 gobject_class->dispose = gst_tee_dispose;
236 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
237 g_param_spec_int ("num-src-pads", "Num Src Pads",
238 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
239 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
240 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
241 g_param_spec_boolean ("has-chain", "Has Chain",
242 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
243 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
244 g_object_class_install_property (gobject_class, PROP_SILENT,
245 g_param_spec_boolean ("silent", "Silent",
246 "Don't produce last_message events", DEFAULT_PROP_SILENT,
247 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
248 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
249 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
250 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
251 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
253 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
254 g_param_spec_enum ("pull-mode", "Pull mode",
255 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
257 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
258 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
259 "The pad ALLOCATION queries will be proxied to (unused)", GST_TYPE_PAD,
260 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
261 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
264 gst_element_class_set_static_metadata (gstelement_class,
267 "1-to-N pipe fitting",
268 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
269 gst_element_class_add_pad_template (gstelement_class,
270 gst_static_pad_template_get (&sinktemplate));
271 gst_element_class_add_pad_template (gstelement_class,
272 gst_static_pad_template_get (&tee_src_template));
274 gstelement_class->request_new_pad =
275 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
276 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
280 gst_tee_init (GstTee * tee)
282 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
283 tee->sink_mode = GST_PAD_MODE_NONE;
285 gst_pad_set_event_function (tee->sinkpad,
286 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
287 gst_pad_set_query_function (tee->sinkpad,
288 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
289 gst_pad_set_activatemode_function (tee->sinkpad,
290 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
291 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
292 gst_pad_set_chain_list_function (tee->sinkpad,
293 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
294 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
295 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
297 tee->last_message = NULL;
301 gst_tee_notify_alloc_pad (GstTee * tee)
303 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
307 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
309 GstPad *srcpad = GST_PAD_CAST (user_data);
311 gst_pad_push_event (srcpad, gst_event_ref (*event));
317 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
318 const gchar * unused, const GstCaps * caps)
326 tee = GST_TEE (element);
328 GST_DEBUG_OBJECT (tee, "requesting pad");
330 GST_OBJECT_LOCK (tee);
331 name = g_strdup_printf ("src_%u", tee->pad_counter++);
333 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
334 "name", name, "direction", templ->direction, "template", templ,
338 mode = tee->sink_mode;
340 GST_OBJECT_UNLOCK (tee);
343 case GST_PAD_MODE_PULL:
344 /* we already have a src pad in pull mode, and our pull mode can only be
345 SINGLE, so fall through to activate this new pad in push mode */
346 case GST_PAD_MODE_PUSH:
347 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
355 goto activate_failed;
357 gst_pad_set_activatemode_function (srcpad,
358 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
359 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
360 gst_pad_set_getrange_function (srcpad,
361 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
362 /* Forward sticky events to the new srcpad */
363 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
364 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
365 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
372 gboolean changed = FALSE;
374 GST_OBJECT_LOCK (tee);
375 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
376 if (tee->allocpad == srcpad) {
377 tee->allocpad = NULL;
380 GST_OBJECT_UNLOCK (tee);
381 gst_object_unref (srcpad);
383 gst_tee_notify_alloc_pad (tee);
390 gst_tee_release_pad (GstElement * element, GstPad * pad)
393 gboolean changed = FALSE;
395 tee = GST_TEE (element);
397 GST_DEBUG_OBJECT (tee, "releasing pad");
399 GST_OBJECT_LOCK (tee);
400 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
401 GST_TEE_PAD_CAST (pad)->removed = TRUE;
402 if (tee->allocpad == pad) {
403 tee->allocpad = NULL;
406 GST_OBJECT_UNLOCK (tee);
408 gst_object_ref (pad);
409 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
411 gst_pad_set_active (pad, FALSE);
413 gst_object_unref (pad);
416 gst_tee_notify_alloc_pad (tee);
421 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
424 GstTee *tee = GST_TEE (object);
426 GST_OBJECT_LOCK (tee);
429 tee->has_chain = g_value_get_boolean (value);
432 tee->silent = g_value_get_boolean (value);
435 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
439 GstPad *pad = g_value_get_object (value);
440 GST_OBJECT_LOCK (pad);
441 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
444 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
445 " is not my pad", GST_OBJECT_NAME (pad));
446 GST_OBJECT_UNLOCK (pad);
450 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
453 GST_OBJECT_UNLOCK (tee);
457 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
460 GstTee *tee = GST_TEE (object);
462 GST_OBJECT_LOCK (tee);
464 case PROP_NUM_SRC_PADS:
465 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
468 g_value_set_boolean (value, tee->has_chain);
471 g_value_set_boolean (value, tee->silent);
473 case PROP_LAST_MESSAGE:
474 g_value_set_string (value, tee->last_message);
477 g_value_set_enum (value, tee->pull_mode);
480 g_value_set_object (value, tee->allocpad);
483 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
486 GST_OBJECT_UNLOCK (tee);
490 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
494 switch (GST_EVENT_TYPE (event)) {
496 res = gst_pad_event_default (pad, parent, event);
504 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
508 switch (GST_QUERY_TYPE (query)) {
510 res = gst_pad_query_default (pad, parent, query);
517 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
519 GST_OBJECT_LOCK (tee);
520 g_free (tee->last_message);
523 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
524 GST_DEBUG_PAD_NAME (pad), data);
527 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
528 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
529 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
531 GST_OBJECT_UNLOCK (tee);
533 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
537 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
542 if (pad == tee->pull_pad) {
543 /* don't push on the pad we're pulling from */
545 } else if (is_list) {
547 gst_pad_push_list (pad,
548 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
550 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
556 clear_pads (GstPad * pad, GstTee * tee)
558 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
559 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
563 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
567 GstFlowReturn ret, cret;
569 if (G_UNLIKELY (!tee->silent))
570 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
572 GST_OBJECT_LOCK (tee);
573 pads = GST_ELEMENT_CAST (tee)->srcpads;
575 /* special case for zero pads */
576 if (G_UNLIKELY (!pads))
579 /* special case for just one pad that avoids reffing the buffer */
581 GstPad *pad = GST_PAD_CAST (pads->data);
583 /* Keep another ref around, a pad probe
584 * might release and destroy the pad */
585 gst_object_ref (pad);
586 GST_OBJECT_UNLOCK (tee);
588 if (pad == tee->pull_pad) {
590 } else if (is_list) {
591 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
593 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
596 gst_object_unref (pad);
601 /* mark all pads as 'not pushed on yet' */
602 g_list_foreach (pads, (GFunc) clear_pads, tee);
605 cret = GST_FLOW_NOT_LINKED;
606 pads = GST_ELEMENT_CAST (tee)->srcpads;
607 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
612 pad = GST_PAD_CAST (pads->data);
614 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
615 /* not yet pushed, release lock and start pushing */
616 gst_object_ref (pad);
617 GST_OBJECT_UNLOCK (tee);
619 GST_LOG_OBJECT (tee, "Starting to push %s %p",
620 is_list ? "list" : "buffer", data);
622 ret = gst_tee_do_push (tee, pad, data, is_list);
624 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
625 gst_flow_get_name (ret));
627 GST_OBJECT_LOCK (tee);
628 /* keep track of which pad we pushed and the result value */
629 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
630 GST_TEE_PAD_CAST (pad)->result = ret;
631 gst_object_unref (pad);
633 /* already pushed, use previous return value */
634 ret = GST_TEE_PAD_CAST (pad)->result;
635 GST_LOG_OBJECT (tee, "pad already pushed with %s",
636 gst_flow_get_name (ret));
639 /* before we go combining the return value, check if the pad list is still
640 * the same. It could be possible that the pad we just pushed was removed
641 * and the return value it not valid anymore */
642 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
643 GST_LOG_OBJECT (tee, "pad list changed");
644 /* the list of pads changed, restart iteration. Pads that we already
645 * pushed on and are still in the new list, will not be pushed on
650 /* stop pushing more buffers when we have a fatal error */
651 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
654 /* keep all other return values, overwriting the previous one. */
655 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
656 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
659 pads = g_list_next (pads);
661 GST_OBJECT_UNLOCK (tee);
663 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
665 /* no need to unset gvalue */
671 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
672 ret = GST_FLOW_NOT_LINKED;
677 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
678 GST_OBJECT_UNLOCK (tee);
679 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
685 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
690 tee = GST_TEE_CAST (parent);
692 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
694 res = gst_tee_handle_data (tee, buffer, FALSE);
696 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
702 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
707 tee = GST_TEE_CAST (parent);
709 GST_DEBUG_OBJECT (tee, "received list %p", list);
711 res = gst_tee_handle_data (tee, list, TRUE);
713 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
719 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
725 tee = GST_TEE (parent);
728 case GST_PAD_MODE_PUSH:
730 GST_OBJECT_LOCK (tee);
731 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
733 if (active && !tee->has_chain)
735 GST_OBJECT_UNLOCK (tee);
748 GST_OBJECT_UNLOCK (tee);
749 GST_INFO_OBJECT (tee,
750 "Tee cannot operate in push mode with has-chain==FALSE");
756 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
763 tee = GST_TEE (parent);
766 case GST_PAD_MODE_PULL:
768 GST_OBJECT_LOCK (tee);
770 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
773 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
774 goto cannot_pull_multiple_srcs;
776 sinkpad = gst_object_ref (tee->sinkpad);
778 GST_OBJECT_UNLOCK (tee);
780 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
781 gst_object_unref (sinkpad);
784 goto sink_activate_failed;
786 GST_OBJECT_LOCK (tee);
788 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
791 if (pad == tee->pull_pad)
792 tee->pull_pad = NULL;
794 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
795 GST_OBJECT_UNLOCK (tee);
808 GST_OBJECT_UNLOCK (tee);
809 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
813 cannot_pull_multiple_srcs:
815 GST_OBJECT_UNLOCK (tee);
816 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
817 "pull-mode set to SINGLE");
820 sink_activate_failed:
822 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
829 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
835 tee = GST_TEE (parent);
837 switch (GST_QUERY_TYPE (query)) {
838 case GST_QUERY_SCHEDULING:
842 GST_OBJECT_LOCK (tee);
844 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
845 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
848 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
849 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
850 "pull-mode set to SINGLE");
854 sinkpad = gst_object_ref (tee->sinkpad);
855 GST_OBJECT_UNLOCK (tee);
858 /* ask peer if we can operate in pull mode */
859 res = gst_pad_peer_query (sinkpad, query);
863 gst_object_unref (sinkpad);
867 res = gst_pad_query_default (pad, parent, query);
875 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
877 GstPad *pad = g_value_get_object (vpad);
879 if (pad != tee->pull_pad)
880 gst_pad_push_event (pad, gst_event_new_eos ());
884 gst_tee_pull_eos (GstTee * tee)
888 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
889 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
891 gst_iterator_free (iter);
895 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
896 guint length, GstBuffer ** buf)
901 tee = GST_TEE (parent);
903 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
905 if (ret == GST_FLOW_OK)
906 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
907 else if (ret == GST_FLOW_EOS)
908 gst_tee_pull_eos (tee);