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"
56 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
61 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
62 #define GST_CAT_DEFAULT gst_tee_debug
64 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
66 gst_tee_pull_mode_get_type (void)
68 static GType type = 0;
69 static const GEnumValue data[] = {
70 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
71 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
77 type = g_enum_register_static ("GstTeePullMode", data);
82 #define DEFAULT_PROP_NUM_SRC_PADS 0
83 #define DEFAULT_PROP_HAS_CHAIN TRUE
84 #define DEFAULT_PROP_SILENT TRUE
85 #define DEFAULT_PROP_LAST_MESSAGE NULL
86 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
99 static GstStaticPadTemplate tee_src_template =
100 GST_STATIC_PAD_TEMPLATE ("src_%u",
103 GST_STATIC_CAPS_ANY);
106 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
107 #define gst_tee_parent_class parent_class
108 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
110 static GParamSpec *pspec_last_message = NULL;
111 static GParamSpec *pspec_alloc_pad = NULL;
113 GType gst_tee_pad_get_type (void);
115 #define GST_TYPE_TEE_PAD \
116 (gst_tee_pad_get_type())
117 #define GST_TEE_PAD(obj) \
118 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
119 #define GST_TEE_PAD_CLASS(klass) \
120 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
121 #define GST_IS_TEE_PAD(obj) \
122 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
123 #define GST_IS_TEE_PAD_CLASS(klass) \
124 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
125 #define GST_TEE_PAD_CAST(obj) \
128 typedef struct _GstTeePad GstTeePad;
129 typedef struct _GstTeePadClass GstTeePadClass;
137 GstFlowReturn result;
141 struct _GstTeePadClass
146 G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
149 gst_tee_pad_class_init (GstTeePadClass * klass)
154 gst_tee_pad_reset (GstTeePad * pad)
157 pad->result = GST_FLOW_NOT_LINKED;
158 pad->removed = FALSE;
162 gst_tee_pad_init (GstTeePad * pad)
164 gst_tee_pad_reset (pad);
167 static GstPad *gst_tee_request_new_pad (GstElement * element,
168 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
169 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
171 static void gst_tee_finalize (GObject * object);
172 static void gst_tee_set_property (GObject * object, guint prop_id,
173 const GValue * value, GParamSpec * pspec);
174 static void gst_tee_get_property (GObject * object, guint prop_id,
175 GValue * value, GParamSpec * pspec);
176 static void gst_tee_dispose (GObject * object);
178 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
180 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
181 GstBufferList * list);
182 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
184 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
186 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
187 GstPadMode mode, gboolean active);
188 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
190 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
191 GstPadMode mode, gboolean active);
192 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
193 guint64 offset, guint length, GstBuffer ** buf);
196 gst_tee_dispose (GObject * object)
201 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
202 GstPad *pad = GST_PAD (item->data);
203 if (GST_PAD_IS_SRC (pad)) {
204 gst_element_release_request_pad (GST_ELEMENT (object), pad);
209 G_OBJECT_CLASS (parent_class)->dispose (object);
213 gst_tee_finalize (GObject * object)
217 tee = GST_TEE (object);
219 g_hash_table_unref (tee->pad_indexes);
221 g_free (tee->last_message);
223 G_OBJECT_CLASS (parent_class)->finalize (object);
227 gst_tee_class_init (GstTeeClass * klass)
229 GObjectClass *gobject_class;
230 GstElementClass *gstelement_class;
232 gobject_class = G_OBJECT_CLASS (klass);
233 gstelement_class = GST_ELEMENT_CLASS (klass);
235 gobject_class->finalize = gst_tee_finalize;
236 gobject_class->set_property = gst_tee_set_property;
237 gobject_class->get_property = gst_tee_get_property;
238 gobject_class->dispose = gst_tee_dispose;
240 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
241 g_param_spec_int ("num-src-pads", "Num Src Pads",
242 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
243 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
244 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
245 g_param_spec_boolean ("has-chain", "Has Chain",
246 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
247 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
248 g_object_class_install_property (gobject_class, PROP_SILENT,
249 g_param_spec_boolean ("silent", "Silent",
250 "Don't produce last_message events", DEFAULT_PROP_SILENT,
251 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
252 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
253 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
254 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
255 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
257 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
258 g_param_spec_enum ("pull-mode", "Pull mode",
259 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
261 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
262 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
263 "The pad ALLOCATION queries will be proxied to (unused)", GST_TYPE_PAD,
264 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
265 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
268 gst_element_class_set_static_metadata (gstelement_class,
271 "1-to-N pipe fitting",
272 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
273 gst_element_class_add_pad_template (gstelement_class,
274 gst_static_pad_template_get (&sinktemplate));
275 gst_element_class_add_pad_template (gstelement_class,
276 gst_static_pad_template_get (&tee_src_template));
278 gstelement_class->request_new_pad =
279 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
280 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
284 gst_tee_init (GstTee * tee)
286 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
287 tee->sink_mode = GST_PAD_MODE_NONE;
289 gst_pad_set_event_function (tee->sinkpad,
290 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
291 gst_pad_set_query_function (tee->sinkpad,
292 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
293 gst_pad_set_activatemode_function (tee->sinkpad,
294 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
295 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
296 gst_pad_set_chain_list_function (tee->sinkpad,
297 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
298 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
299 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
301 tee->pad_indexes = g_hash_table_new (NULL, NULL);
303 tee->last_message = NULL;
307 gst_tee_notify_alloc_pad (GstTee * tee)
309 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
313 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
315 GstPad *srcpad = GST_PAD_CAST (user_data);
317 gst_pad_push_event (srcpad, gst_event_ref (*event));
323 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
324 const gchar * name_templ, const GstCaps * caps)
333 tee = GST_TEE (element);
335 GST_DEBUG_OBJECT (tee, "requesting pad");
337 GST_OBJECT_LOCK (tee);
340 sscanf (name_templ, "src_%u", &index);
341 GST_LOG_OBJECT (element, "name: %s (index %d)", name_templ, index);
342 if (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index))) {
343 GST_ERROR_OBJECT (element, "pad name %s is not unique", name_templ);
344 GST_OBJECT_UNLOCK (tee);
347 if (index >= tee->next_pad_index)
348 tee->next_pad_index = index + 1;
350 index = tee->next_pad_index;
352 while (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index)))
355 tee->next_pad_index = index + 1;
358 g_hash_table_insert (tee->pad_indexes, GUINT_TO_POINTER (index), NULL);
360 name = g_strdup_printf ("src_%u", index);
362 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
363 "name", name, "direction", templ->direction, "template", templ,
365 GST_TEE_PAD_CAST (srcpad)->index = index;
368 mode = tee->sink_mode;
370 GST_OBJECT_UNLOCK (tee);
373 case GST_PAD_MODE_PULL:
374 /* we already have a src pad in pull mode, and our pull mode can only be
375 SINGLE, so fall through to activate this new pad in push mode */
376 case GST_PAD_MODE_PUSH:
377 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
385 goto activate_failed;
387 gst_pad_set_activatemode_function (srcpad,
388 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
389 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
390 gst_pad_set_getrange_function (srcpad,
391 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
392 /* Forward sticky events to the new srcpad */
393 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
394 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
395 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
402 gboolean changed = FALSE;
404 GST_OBJECT_LOCK (tee);
405 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
406 if (tee->allocpad == srcpad) {
407 tee->allocpad = NULL;
410 GST_OBJECT_UNLOCK (tee);
411 gst_object_unref (srcpad);
413 gst_tee_notify_alloc_pad (tee);
420 gst_tee_release_pad (GstElement * element, GstPad * pad)
423 gboolean changed = FALSE;
426 tee = GST_TEE (element);
428 GST_DEBUG_OBJECT (tee, "releasing pad");
430 GST_OBJECT_LOCK (tee);
431 index = GST_TEE_PAD_CAST (pad)->index;
432 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
433 GST_TEE_PAD_CAST (pad)->removed = TRUE;
434 if (tee->allocpad == pad) {
435 tee->allocpad = NULL;
438 GST_OBJECT_UNLOCK (tee);
440 gst_object_ref (pad);
441 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
443 gst_pad_set_active (pad, FALSE);
445 gst_object_unref (pad);
448 gst_tee_notify_alloc_pad (tee);
451 GST_OBJECT_LOCK (tee);
452 g_hash_table_remove (tee->pad_indexes, GUINT_TO_POINTER (index));
453 GST_OBJECT_UNLOCK (tee);
457 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
460 GstTee *tee = GST_TEE (object);
462 GST_OBJECT_LOCK (tee);
465 tee->has_chain = g_value_get_boolean (value);
468 tee->silent = g_value_get_boolean (value);
471 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
475 GstPad *pad = g_value_get_object (value);
476 GST_OBJECT_LOCK (pad);
477 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
480 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
481 " is not my pad", GST_OBJECT_NAME (pad));
482 GST_OBJECT_UNLOCK (pad);
486 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
489 GST_OBJECT_UNLOCK (tee);
493 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
496 GstTee *tee = GST_TEE (object);
498 GST_OBJECT_LOCK (tee);
500 case PROP_NUM_SRC_PADS:
501 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
504 g_value_set_boolean (value, tee->has_chain);
507 g_value_set_boolean (value, tee->silent);
509 case PROP_LAST_MESSAGE:
510 g_value_set_string (value, tee->last_message);
513 g_value_set_enum (value, tee->pull_mode);
516 g_value_set_object (value, tee->allocpad);
519 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
522 GST_OBJECT_UNLOCK (tee);
526 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
530 switch (GST_EVENT_TYPE (event)) {
532 res = gst_pad_event_default (pad, parent, event);
540 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
544 switch (GST_QUERY_TYPE (query)) {
546 res = gst_pad_query_default (pad, parent, query);
553 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
555 GST_OBJECT_LOCK (tee);
556 g_free (tee->last_message);
559 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
560 GST_DEBUG_PAD_NAME (pad), data);
563 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
564 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
565 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
567 GST_OBJECT_UNLOCK (tee);
569 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
573 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
578 if (pad == tee->pull_pad) {
579 /* don't push on the pad we're pulling from */
581 } else if (is_list) {
583 gst_pad_push_list (pad,
584 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
586 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
592 clear_pads (GstPad * pad, GstTee * tee)
594 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
595 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
599 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
603 GstFlowReturn ret, cret;
605 if (G_UNLIKELY (!tee->silent))
606 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
608 GST_OBJECT_LOCK (tee);
609 pads = GST_ELEMENT_CAST (tee)->srcpads;
611 /* special case for zero pads */
612 if (G_UNLIKELY (!pads))
615 /* special case for just one pad that avoids reffing the buffer */
617 GstPad *pad = GST_PAD_CAST (pads->data);
619 /* Keep another ref around, a pad probe
620 * might release and destroy the pad */
621 gst_object_ref (pad);
622 GST_OBJECT_UNLOCK (tee);
624 if (pad == tee->pull_pad) {
626 } else if (is_list) {
627 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
629 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
632 gst_object_unref (pad);
637 /* mark all pads as 'not pushed on yet' */
638 g_list_foreach (pads, (GFunc) clear_pads, tee);
641 cret = GST_FLOW_NOT_LINKED;
642 pads = GST_ELEMENT_CAST (tee)->srcpads;
643 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
648 pad = GST_PAD_CAST (pads->data);
650 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
651 /* not yet pushed, release lock and start pushing */
652 gst_object_ref (pad);
653 GST_OBJECT_UNLOCK (tee);
655 GST_LOG_OBJECT (tee, "Starting to push %s %p",
656 is_list ? "list" : "buffer", data);
658 ret = gst_tee_do_push (tee, pad, data, is_list);
660 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
661 gst_flow_get_name (ret));
663 GST_OBJECT_LOCK (tee);
664 /* keep track of which pad we pushed and the result value */
665 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
666 GST_TEE_PAD_CAST (pad)->result = ret;
667 gst_object_unref (pad);
669 /* already pushed, use previous return value */
670 ret = GST_TEE_PAD_CAST (pad)->result;
671 GST_LOG_OBJECT (tee, "pad already pushed with %s",
672 gst_flow_get_name (ret));
675 /* before we go combining the return value, check if the pad list is still
676 * the same. It could be possible that the pad we just pushed was removed
677 * and the return value it not valid anymore */
678 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
679 GST_LOG_OBJECT (tee, "pad list changed");
680 /* the list of pads changed, restart iteration. Pads that we already
681 * pushed on and are still in the new list, will not be pushed on
686 /* stop pushing more buffers when we have a fatal error */
687 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
690 /* keep all other return values, overwriting the previous one. */
691 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
692 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
695 pads = g_list_next (pads);
697 GST_OBJECT_UNLOCK (tee);
699 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
701 /* no need to unset gvalue */
707 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
708 ret = GST_FLOW_NOT_LINKED;
713 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
714 GST_OBJECT_UNLOCK (tee);
715 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
721 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
726 tee = GST_TEE_CAST (parent);
728 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
730 res = gst_tee_handle_data (tee, buffer, FALSE);
732 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
738 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
743 tee = GST_TEE_CAST (parent);
745 GST_DEBUG_OBJECT (tee, "received list %p", list);
747 res = gst_tee_handle_data (tee, list, TRUE);
749 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
755 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
761 tee = GST_TEE (parent);
764 case GST_PAD_MODE_PUSH:
766 GST_OBJECT_LOCK (tee);
767 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
769 if (active && !tee->has_chain)
771 GST_OBJECT_UNLOCK (tee);
784 GST_OBJECT_UNLOCK (tee);
785 GST_INFO_OBJECT (tee,
786 "Tee cannot operate in push mode with has-chain==FALSE");
792 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
799 tee = GST_TEE (parent);
802 case GST_PAD_MODE_PULL:
804 GST_OBJECT_LOCK (tee);
806 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
809 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
810 goto cannot_pull_multiple_srcs;
812 sinkpad = gst_object_ref (tee->sinkpad);
814 GST_OBJECT_UNLOCK (tee);
816 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
817 gst_object_unref (sinkpad);
820 goto sink_activate_failed;
822 GST_OBJECT_LOCK (tee);
824 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
827 if (pad == tee->pull_pad)
828 tee->pull_pad = NULL;
830 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
831 GST_OBJECT_UNLOCK (tee);
844 GST_OBJECT_UNLOCK (tee);
845 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
849 cannot_pull_multiple_srcs:
851 GST_OBJECT_UNLOCK (tee);
852 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
853 "pull-mode set to SINGLE");
856 sink_activate_failed:
858 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
865 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
871 tee = GST_TEE (parent);
873 switch (GST_QUERY_TYPE (query)) {
874 case GST_QUERY_SCHEDULING:
878 GST_OBJECT_LOCK (tee);
880 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
881 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
884 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
885 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
886 "pull-mode set to SINGLE");
890 sinkpad = gst_object_ref (tee->sinkpad);
891 GST_OBJECT_UNLOCK (tee);
894 /* ask peer if we can operate in pull mode */
895 res = gst_pad_peer_query (sinkpad, query);
899 gst_object_unref (sinkpad);
903 res = gst_pad_query_default (pad, parent, query);
911 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
913 GstPad *pad = g_value_get_object (vpad);
915 if (pad != tee->pull_pad)
916 gst_pad_push_event (pad, gst_event_new_eos ());
920 gst_tee_pull_eos (GstTee * tee)
924 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
925 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
927 gst_iterator_free (iter);
931 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
932 guint length, GstBuffer ** buf)
937 tee = GST_TEE (parent);
939 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
941 if (ret == GST_FLOW_OK)
942 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
943 else if (ret == GST_FLOW_EOS)
944 gst_tee_pull_eos (tee);