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_push (GstPad * pad, gboolean active);
148 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
150 static gboolean gst_tee_src_activate_pull (GstPad * pad, gboolean active);
151 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
152 guint64 offset, guint length, GstBuffer ** buf);
155 gst_tee_dispose (GObject * object)
160 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
161 GstPad *pad = GST_PAD (item->data);
162 if (GST_PAD_IS_SRC (pad)) {
163 gst_element_release_request_pad (GST_ELEMENT (object), pad);
168 G_OBJECT_CLASS (parent_class)->dispose (object);
172 gst_tee_finalize (GObject * object)
176 tee = GST_TEE (object);
178 g_free (tee->last_message);
180 g_mutex_free (tee->dyn_lock);
182 G_OBJECT_CLASS (parent_class)->finalize (object);
186 gst_tee_class_init (GstTeeClass * klass)
188 GObjectClass *gobject_class;
189 GstElementClass *gstelement_class;
191 gobject_class = G_OBJECT_CLASS (klass);
192 gstelement_class = GST_ELEMENT_CLASS (klass);
194 gobject_class->finalize = gst_tee_finalize;
195 gobject_class->set_property = gst_tee_set_property;
196 gobject_class->get_property = gst_tee_get_property;
197 gobject_class->dispose = gst_tee_dispose;
199 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
200 g_param_spec_int ("num-src-pads", "Num Src Pads",
201 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
202 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
203 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
204 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
205 "If the element should spawn a thread (unimplemented and deprecated)",
206 DEFAULT_PROP_HAS_SINK_LOOP,
207 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
208 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
209 g_param_spec_boolean ("has-chain", "Has Chain",
210 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
211 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
212 g_object_class_install_property (gobject_class, PROP_SILENT,
213 g_param_spec_boolean ("silent", "Silent",
214 "Don't produce last_message events", DEFAULT_PROP_SILENT,
215 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
216 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
217 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
218 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
219 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
221 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
222 g_param_spec_enum ("pull-mode", "Pull mode",
223 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
225 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
226 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
227 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
228 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
229 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
232 gst_element_class_set_details_simple (gstelement_class,
235 "1-to-N pipe fitting",
236 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
237 gst_element_class_add_pad_template (gstelement_class,
238 gst_static_pad_template_get (&sinktemplate));
239 gst_element_class_add_pad_template (gstelement_class,
240 gst_static_pad_template_get (&tee_src_template));
242 gstelement_class->request_new_pad =
243 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
244 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
248 gst_tee_init (GstTee * tee)
250 tee->dyn_lock = g_mutex_new ();
252 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
253 tee->sink_mode = GST_PAD_ACTIVATE_NONE;
255 gst_pad_set_event_function (tee->sinkpad,
256 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
257 gst_pad_set_query_function (tee->sinkpad,
258 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
259 gst_pad_set_activatepush_function (tee->sinkpad,
260 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_push));
261 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
262 gst_pad_set_chain_list_function (tee->sinkpad,
263 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
264 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
265 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
267 tee->last_message = NULL;
271 gst_tee_notify_alloc_pad (GstTee * tee)
273 #if !GLIB_CHECK_VERSION(2,26,0)
274 g_object_notify ((GObject *) tee, "alloc-pad");
276 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
281 forward_sticky_events (GstPad * pad, GstEvent * event, gpointer user_data)
283 GstPad *srcpad = GST_PAD_CAST (user_data);
285 gst_pad_push_event (srcpad, gst_event_ref (event));
291 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
292 const gchar * unused, const GstCaps * caps)
297 GstPadActivateMode mode;
301 tee = GST_TEE (element);
303 GST_DEBUG_OBJECT (tee, "requesting pad");
305 GST_OBJECT_LOCK (tee);
306 name = g_strdup_printf ("src_%u", tee->pad_counter++);
308 srcpad = gst_pad_new_from_template (templ, name);
311 mode = tee->sink_mode;
313 /* install the data, we automatically free it when the pad is disposed because
314 * of _release_pad or when the element goes away. */
315 data = g_new0 (PushData, 1);
316 data->pushed = FALSE;
317 data->result = GST_FLOW_NOT_LINKED;
318 data->removed = FALSE;
319 g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
321 GST_OBJECT_UNLOCK (tee);
324 case GST_PAD_ACTIVATE_PULL:
325 /* we already have a src pad in pull mode, and our pull mode can only be
326 SINGLE, so fall through to activate this new pad in push mode */
327 case GST_PAD_ACTIVATE_PUSH:
328 res = gst_pad_activate_push (srcpad, TRUE);
336 goto activate_failed;
338 gst_pad_set_activatepull_function (srcpad,
339 GST_DEBUG_FUNCPTR (gst_tee_src_activate_pull));
340 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
341 gst_pad_set_getrange_function (srcpad,
342 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
343 /* Forward sticky events to the new srcpad */
344 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
345 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
346 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
353 gboolean changed = FALSE;
355 GST_OBJECT_LOCK (tee);
356 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
357 if (tee->allocpad == srcpad) {
358 tee->allocpad = NULL;
361 GST_OBJECT_UNLOCK (tee);
362 gst_object_unref (srcpad);
364 gst_tee_notify_alloc_pad (tee);
371 gst_tee_release_pad (GstElement * element, GstPad * pad)
375 gboolean changed = FALSE;
377 tee = GST_TEE (element);
379 GST_DEBUG_OBJECT (tee, "releasing pad");
381 /* wait for pending pad_alloc to finish */
382 GST_TEE_DYN_LOCK (tee);
383 data = g_object_get_qdata (G_OBJECT (pad), push_data);
385 GST_OBJECT_LOCK (tee);
386 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
387 data->removed = TRUE;
388 if (tee->allocpad == pad) {
389 tee->allocpad = NULL;
392 GST_OBJECT_UNLOCK (tee);
394 gst_object_ref (pad);
395 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
397 gst_pad_set_active (pad, FALSE);
398 GST_TEE_DYN_UNLOCK (tee);
400 gst_object_unref (pad);
403 gst_tee_notify_alloc_pad (tee);
408 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
411 GstTee *tee = GST_TEE (object);
413 GST_OBJECT_LOCK (tee);
415 case PROP_HAS_SINK_LOOP:
416 tee->has_sink_loop = g_value_get_boolean (value);
417 if (tee->has_sink_loop) {
418 g_warning ("tee will never implement has-sink-loop==TRUE");
422 tee->has_chain = g_value_get_boolean (value);
425 tee->silent = g_value_get_boolean (value);
428 tee->pull_mode = g_value_get_enum (value);
432 GstPad *pad = g_value_get_object (value);
433 GST_OBJECT_LOCK (pad);
434 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
437 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
438 " is not my pad", GST_OBJECT_NAME (pad));
439 GST_OBJECT_UNLOCK (pad);
443 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
446 GST_OBJECT_UNLOCK (tee);
450 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
453 GstTee *tee = GST_TEE (object);
455 GST_OBJECT_LOCK (tee);
457 case PROP_NUM_SRC_PADS:
458 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
460 case PROP_HAS_SINK_LOOP:
461 g_value_set_boolean (value, tee->has_sink_loop);
464 g_value_set_boolean (value, tee->has_chain);
467 g_value_set_boolean (value, tee->silent);
469 case PROP_LAST_MESSAGE:
470 g_value_set_string (value, tee->last_message);
473 g_value_set_enum (value, tee->pull_mode);
476 g_value_set_object (value, tee->allocpad);
479 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
482 GST_OBJECT_UNLOCK (tee);
486 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
490 switch (GST_EVENT_TYPE (event)) {
492 res = gst_pad_event_default (pad, parent, event);
500 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
504 switch (GST_QUERY_TYPE (query)) {
506 res = gst_pad_query_default (pad, parent, query);
513 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
515 GST_OBJECT_LOCK (tee);
516 g_free (tee->last_message);
519 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
520 GST_DEBUG_PAD_NAME (pad), data);
523 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
524 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
525 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
527 GST_OBJECT_UNLOCK (tee);
529 #if !GLIB_CHECK_VERSION(2,26,0)
530 g_object_notify ((GObject *) tee, "last-message");
532 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)
560 data = g_object_get_qdata ((GObject *) pad, push_data);
562 /* the data must be there or we have a screwed up internal state */
563 g_assert (data != NULL);
565 data->pushed = FALSE;
566 data->result = GST_FLOW_NOT_LINKED;
570 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
574 GstFlowReturn ret, cret;
576 if (G_UNLIKELY (!tee->silent))
577 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
579 GST_OBJECT_LOCK (tee);
580 pads = GST_ELEMENT_CAST (tee)->srcpads;
582 /* special case for zero pads */
583 if (G_UNLIKELY (!pads))
586 /* special case for just one pad that avoids reffing the buffer */
588 GstPad *pad = GST_PAD_CAST (pads->data);
590 GST_OBJECT_UNLOCK (tee);
592 if (pad == tee->pull_pad) {
594 } else if (is_list) {
595 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
597 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
602 /* mark all pads as 'not pushed on yet' */
603 g_list_foreach (pads, (GFunc) clear_pads, tee);
606 cret = GST_FLOW_NOT_LINKED;
607 pads = GST_ELEMENT_CAST (tee)->srcpads;
608 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
614 pad = GST_PAD_CAST (pads->data);
616 /* get the private data, something is really wrong with the internal state
617 * when it is not there */
618 pdata = g_object_get_qdata ((GObject *) pad, push_data);
619 g_assert (pdata != NULL);
621 if (G_LIKELY (!pdata->pushed)) {
622 /* not yet pushed, release lock and start pushing */
623 gst_object_ref (pad);
624 GST_OBJECT_UNLOCK (tee);
626 GST_LOG_OBJECT (tee, "Starting to push %s %p",
627 is_list ? "list" : "buffer", data);
629 ret = gst_tee_do_push (tee, pad, data, is_list);
631 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
632 gst_flow_get_name (ret));
634 GST_OBJECT_LOCK (tee);
635 /* keep track of which pad we pushed and the result value. We need to do
636 * this before we release the refcount on the pad, the PushData is
637 * destroyed when the last ref of the pad goes away. */
638 pdata->pushed = TRUE;
640 gst_object_unref (pad);
642 /* already pushed, use previous return value */
644 GST_LOG_OBJECT (tee, "pad already pushed with %s",
645 gst_flow_get_name (ret));
648 /* before we go combining the return value, check if the pad list is still
649 * the same. It could be possible that the pad we just pushed was removed
650 * and the return value it not valid anymore */
651 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
652 GST_LOG_OBJECT (tee, "pad list changed");
653 /* the list of pads changed, restart iteration. Pads that we already
654 * pushed on and are still in the new list, will not be pushed on
659 /* stop pushing more buffers when we have a fatal error */
660 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
663 /* keep all other return values, overwriting the previous one. */
664 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
665 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
668 pads = g_list_next (pads);
670 GST_OBJECT_UNLOCK (tee);
672 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
674 /* no need to unset gvalue */
680 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
681 ret = GST_FLOW_NOT_LINKED;
686 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
687 GST_OBJECT_UNLOCK (tee);
688 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
694 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
699 tee = GST_TEE_CAST (parent);
701 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
703 res = gst_tee_handle_data (tee, buffer, FALSE);
705 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
711 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
716 tee = GST_TEE_CAST (parent);
718 GST_DEBUG_OBJECT (tee, "received list %p", list);
720 res = gst_tee_handle_data (tee, list, TRUE);
722 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
728 gst_tee_sink_activate_push (GstPad * pad, gboolean active)
732 tee = GST_TEE (GST_OBJECT_PARENT (pad));
734 GST_OBJECT_LOCK (tee);
735 tee->sink_mode = active && GST_PAD_ACTIVATE_PUSH;
737 if (active && !tee->has_chain)
739 GST_OBJECT_UNLOCK (tee);
746 GST_OBJECT_UNLOCK (tee);
747 GST_INFO_OBJECT (tee,
748 "Tee cannot operate in push mode with has-chain==FALSE");
754 gst_tee_src_activate_pull (GstPad * pad, gboolean active)
760 tee = GST_TEE (GST_PAD_PARENT (pad));
762 GST_OBJECT_LOCK (tee);
764 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
767 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
768 goto cannot_pull_multiple_srcs;
770 sinkpad = gst_object_ref (tee->sinkpad);
772 GST_OBJECT_UNLOCK (tee);
774 res = gst_pad_activate_pull (sinkpad, active);
775 gst_object_unref (sinkpad);
778 goto sink_activate_failed;
780 GST_OBJECT_LOCK (tee);
782 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
785 if (pad == tee->pull_pad)
786 tee->pull_pad = NULL;
788 tee->sink_mode = active & GST_PAD_ACTIVATE_PULL;
789 GST_OBJECT_UNLOCK (tee);
796 GST_OBJECT_UNLOCK (tee);
797 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
801 cannot_pull_multiple_srcs:
803 GST_OBJECT_UNLOCK (tee);
804 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
805 "pull-mode set to SINGLE");
808 sink_activate_failed:
810 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
817 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
823 tee = GST_TEE (parent);
825 switch (GST_QUERY_TYPE (query)) {
826 case GST_QUERY_SCHEDULING:
830 GST_OBJECT_LOCK (tee);
832 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
833 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
836 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
837 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
838 "pull-mode set to SINGLE");
842 sinkpad = gst_object_ref (tee->sinkpad);
843 GST_OBJECT_UNLOCK (tee);
846 /* ask peer if we can operate in pull mode */
847 res = gst_pad_peer_query (sinkpad, query);
851 gst_object_unref (sinkpad);
855 res = gst_pad_query_default (pad, parent, query);
863 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
865 GstPad *pad = g_value_get_object (vpad);
867 if (pad != tee->pull_pad)
868 gst_pad_push_event (pad, gst_event_new_eos ());
872 gst_tee_pull_eos (GstTee * tee)
876 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
877 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
879 gst_iterator_free (iter);
883 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
884 guint length, GstBuffer ** buf)
889 tee = GST_TEE (parent);
891 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
893 if (ret == GST_FLOW_OK)
894 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
895 else if (ret == GST_FLOW_EOS)
896 gst_tee_pull_eos (tee);