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);
110 /* structure and quark to keep track of which pads have been pushed */
111 static GQuark push_data;
114 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element"); \
115 push_data = g_quark_from_static_string ("tee-push-data");
116 #define gst_tee_parent_class parent_class
117 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
119 static GParamSpec *pspec_last_message = NULL;
120 static GParamSpec *pspec_alloc_pad = NULL;
125 GstFlowReturn result;
129 static GstPad *gst_tee_request_new_pad (GstElement * element,
130 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
131 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
133 static void gst_tee_finalize (GObject * object);
134 static void gst_tee_set_property (GObject * object, guint prop_id,
135 const GValue * value, GParamSpec * pspec);
136 static void gst_tee_get_property (GObject * object, guint prop_id,
137 GValue * value, GParamSpec * pspec);
138 static void gst_tee_dispose (GObject * object);
140 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
142 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
143 GstBufferList * list);
144 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
146 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
148 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
149 GstPadMode mode, gboolean active);
150 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
152 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
153 GstPadMode mode, gboolean active);
154 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
155 guint64 offset, guint length, GstBuffer ** buf);
158 gst_tee_dispose (GObject * object)
163 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
164 GstPad *pad = GST_PAD (item->data);
165 if (GST_PAD_IS_SRC (pad)) {
166 gst_element_release_request_pad (GST_ELEMENT (object), pad);
171 G_OBJECT_CLASS (parent_class)->dispose (object);
175 gst_tee_finalize (GObject * object)
179 tee = GST_TEE (object);
181 g_free (tee->last_message);
183 g_mutex_clear (&tee->dyn_lock);
185 G_OBJECT_CLASS (parent_class)->finalize (object);
189 gst_tee_class_init (GstTeeClass * klass)
191 GObjectClass *gobject_class;
192 GstElementClass *gstelement_class;
194 gobject_class = G_OBJECT_CLASS (klass);
195 gstelement_class = GST_ELEMENT_CLASS (klass);
197 gobject_class->finalize = gst_tee_finalize;
198 gobject_class->set_property = gst_tee_set_property;
199 gobject_class->get_property = gst_tee_get_property;
200 gobject_class->dispose = gst_tee_dispose;
202 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
203 g_param_spec_int ("num-src-pads", "Num Src Pads",
204 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
205 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
206 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
207 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
208 "If the element should spawn a thread (unimplemented and deprecated)",
209 DEFAULT_PROP_HAS_SINK_LOOP,
210 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
211 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
212 g_param_spec_boolean ("has-chain", "Has Chain",
213 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
214 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
215 g_object_class_install_property (gobject_class, PROP_SILENT,
216 g_param_spec_boolean ("silent", "Silent",
217 "Don't produce last_message events", DEFAULT_PROP_SILENT,
218 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
219 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
220 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
221 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
222 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
224 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
225 g_param_spec_enum ("pull-mode", "Pull mode",
226 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
228 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
229 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
230 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
231 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
232 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
235 gst_element_class_set_static_metadata (gstelement_class,
238 "1-to-N pipe fitting",
239 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
240 gst_element_class_add_pad_template (gstelement_class,
241 gst_static_pad_template_get (&sinktemplate));
242 gst_element_class_add_pad_template (gstelement_class,
243 gst_static_pad_template_get (&tee_src_template));
245 gstelement_class->request_new_pad =
246 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
247 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
251 gst_tee_init (GstTee * tee)
253 g_mutex_init (&tee->dyn_lock);
255 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
256 tee->sink_mode = GST_PAD_MODE_NONE;
258 gst_pad_set_event_function (tee->sinkpad,
259 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
260 gst_pad_set_query_function (tee->sinkpad,
261 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
262 gst_pad_set_activatemode_function (tee->sinkpad,
263 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
264 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
265 gst_pad_set_chain_list_function (tee->sinkpad,
266 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
267 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
268 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
270 tee->last_message = NULL;
274 gst_tee_notify_alloc_pad (GstTee * tee)
276 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
280 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
282 GstPad *srcpad = GST_PAD_CAST (user_data);
284 gst_pad_push_event (srcpad, gst_event_ref (*event));
290 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
291 const gchar * unused, const GstCaps * caps)
300 tee = GST_TEE (element);
302 GST_DEBUG_OBJECT (tee, "requesting pad");
304 GST_OBJECT_LOCK (tee);
305 name = g_strdup_printf ("src_%u", tee->pad_counter++);
307 srcpad = gst_pad_new_from_template (templ, name);
310 mode = tee->sink_mode;
312 /* install the data, we automatically free it when the pad is disposed because
313 * of _release_pad or when the element goes away. */
314 data = g_new0 (PushData, 1);
315 data->pushed = FALSE;
316 data->result = GST_FLOW_NOT_LINKED;
317 data->removed = FALSE;
318 g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
320 GST_OBJECT_UNLOCK (tee);
323 case GST_PAD_MODE_PULL:
324 /* we already have a src pad in pull mode, and our pull mode can only be
325 SINGLE, so fall through to activate this new pad in push mode */
326 case GST_PAD_MODE_PUSH:
327 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
335 goto activate_failed;
337 gst_pad_set_activatemode_function (srcpad,
338 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
339 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
340 gst_pad_set_getrange_function (srcpad,
341 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
342 /* Forward sticky events to the new srcpad */
343 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
344 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
345 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
352 gboolean changed = FALSE;
354 GST_OBJECT_LOCK (tee);
355 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
356 if (tee->allocpad == srcpad) {
357 tee->allocpad = NULL;
360 GST_OBJECT_UNLOCK (tee);
361 gst_object_unref (srcpad);
363 gst_tee_notify_alloc_pad (tee);
370 gst_tee_release_pad (GstElement * element, GstPad * pad)
374 gboolean changed = FALSE;
376 tee = GST_TEE (element);
378 GST_DEBUG_OBJECT (tee, "releasing pad");
380 /* wait for pending pad_alloc to finish */
381 GST_TEE_DYN_LOCK (tee);
382 data = g_object_get_qdata (G_OBJECT (pad), push_data);
384 GST_OBJECT_LOCK (tee);
385 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
386 data->removed = TRUE;
387 if (tee->allocpad == pad) {
388 tee->allocpad = NULL;
391 GST_OBJECT_UNLOCK (tee);
393 gst_object_ref (pad);
394 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
396 gst_pad_set_active (pad, FALSE);
397 GST_TEE_DYN_UNLOCK (tee);
399 gst_object_unref (pad);
402 gst_tee_notify_alloc_pad (tee);
407 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
410 GstTee *tee = GST_TEE (object);
412 GST_OBJECT_LOCK (tee);
414 case PROP_HAS_SINK_LOOP:
415 tee->has_sink_loop = g_value_get_boolean (value);
416 if (tee->has_sink_loop) {
417 g_warning ("tee will never implement has-sink-loop==TRUE");
421 tee->has_chain = g_value_get_boolean (value);
424 tee->silent = g_value_get_boolean (value);
427 tee->pull_mode = g_value_get_enum (value);
431 GstPad *pad = g_value_get_object (value);
432 GST_OBJECT_LOCK (pad);
433 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
436 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
437 " is not my pad", GST_OBJECT_NAME (pad));
438 GST_OBJECT_UNLOCK (pad);
442 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
445 GST_OBJECT_UNLOCK (tee);
449 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
452 GstTee *tee = GST_TEE (object);
454 GST_OBJECT_LOCK (tee);
456 case PROP_NUM_SRC_PADS:
457 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
459 case PROP_HAS_SINK_LOOP:
460 g_value_set_boolean (value, tee->has_sink_loop);
463 g_value_set_boolean (value, tee->has_chain);
466 g_value_set_boolean (value, tee->silent);
468 case PROP_LAST_MESSAGE:
469 g_value_set_string (value, tee->last_message);
472 g_value_set_enum (value, tee->pull_mode);
475 g_value_set_object (value, tee->allocpad);
478 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
481 GST_OBJECT_UNLOCK (tee);
485 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
489 switch (GST_EVENT_TYPE (event)) {
491 res = gst_pad_event_default (pad, parent, event);
499 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
503 switch (GST_QUERY_TYPE (query)) {
505 res = gst_pad_query_default (pad, parent, query);
512 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
514 GST_OBJECT_LOCK (tee);
515 g_free (tee->last_message);
518 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
519 GST_DEBUG_PAD_NAME (pad), data);
522 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
523 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
524 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
526 GST_OBJECT_UNLOCK (tee);
528 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
532 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
537 if (pad == tee->pull_pad) {
538 /* don't push on the pad we're pulling from */
540 } else if (is_list) {
542 gst_pad_push_list (pad,
543 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
545 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
551 clear_pads (GstPad * pad, GstTee * tee)
555 data = g_object_get_qdata ((GObject *) pad, push_data);
557 /* the data must be there or we have a screwed up internal state */
558 g_assert (data != NULL);
560 data->pushed = FALSE;
561 data->result = GST_FLOW_NOT_LINKED;
565 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
569 GstFlowReturn ret, cret;
571 if (G_UNLIKELY (!tee->silent))
572 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
574 GST_OBJECT_LOCK (tee);
575 pads = GST_ELEMENT_CAST (tee)->srcpads;
577 /* special case for zero pads */
578 if (G_UNLIKELY (!pads))
581 /* special case for just one pad that avoids reffing the buffer */
583 GstPad *pad = GST_PAD_CAST (pads->data);
585 GST_OBJECT_UNLOCK (tee);
587 if (pad == tee->pull_pad) {
589 } else if (is_list) {
590 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
592 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
597 /* mark all pads as 'not pushed on yet' */
598 g_list_foreach (pads, (GFunc) clear_pads, tee);
601 cret = GST_FLOW_NOT_LINKED;
602 pads = GST_ELEMENT_CAST (tee)->srcpads;
603 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
609 pad = GST_PAD_CAST (pads->data);
611 /* get the private data, something is really wrong with the internal state
612 * when it is not there */
613 pdata = g_object_get_qdata ((GObject *) pad, push_data);
614 g_assert (pdata != NULL);
616 if (G_LIKELY (!pdata->pushed)) {
617 /* not yet pushed, release lock and start pushing */
618 gst_object_ref (pad);
619 GST_OBJECT_UNLOCK (tee);
621 GST_LOG_OBJECT (tee, "Starting to push %s %p",
622 is_list ? "list" : "buffer", data);
624 ret = gst_tee_do_push (tee, pad, data, is_list);
626 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
627 gst_flow_get_name (ret));
629 GST_OBJECT_LOCK (tee);
630 /* keep track of which pad we pushed and the result value. We need to do
631 * this before we release the refcount on the pad, the PushData is
632 * destroyed when the last ref of the pad goes away. */
633 pdata->pushed = TRUE;
635 gst_object_unref (pad);
637 /* already pushed, use previous return value */
639 GST_LOG_OBJECT (tee, "pad already pushed with %s",
640 gst_flow_get_name (ret));
643 /* before we go combining the return value, check if the pad list is still
644 * the same. It could be possible that the pad we just pushed was removed
645 * and the return value it not valid anymore */
646 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
647 GST_LOG_OBJECT (tee, "pad list changed");
648 /* the list of pads changed, restart iteration. Pads that we already
649 * pushed on and are still in the new list, will not be pushed on
654 /* stop pushing more buffers when we have a fatal error */
655 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
658 /* keep all other return values, overwriting the previous one. */
659 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
660 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
663 pads = g_list_next (pads);
665 GST_OBJECT_UNLOCK (tee);
667 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
669 /* no need to unset gvalue */
675 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
676 ret = GST_FLOW_NOT_LINKED;
681 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
682 GST_OBJECT_UNLOCK (tee);
683 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
689 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
694 tee = GST_TEE_CAST (parent);
696 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
698 res = gst_tee_handle_data (tee, buffer, FALSE);
700 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
706 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
711 tee = GST_TEE_CAST (parent);
713 GST_DEBUG_OBJECT (tee, "received list %p", list);
715 res = gst_tee_handle_data (tee, list, TRUE);
717 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
723 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
729 tee = GST_TEE (parent);
732 case GST_PAD_MODE_PUSH:
734 GST_OBJECT_LOCK (tee);
735 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
737 if (active && !tee->has_chain)
739 GST_OBJECT_UNLOCK (tee);
752 GST_OBJECT_UNLOCK (tee);
753 GST_INFO_OBJECT (tee,
754 "Tee cannot operate in push mode with has-chain==FALSE");
760 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
767 tee = GST_TEE (parent);
770 case GST_PAD_MODE_PULL:
772 GST_OBJECT_LOCK (tee);
774 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
777 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
778 goto cannot_pull_multiple_srcs;
780 sinkpad = gst_object_ref (tee->sinkpad);
782 GST_OBJECT_UNLOCK (tee);
784 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
785 gst_object_unref (sinkpad);
788 goto sink_activate_failed;
790 GST_OBJECT_LOCK (tee);
792 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
795 if (pad == tee->pull_pad)
796 tee->pull_pad = NULL;
798 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
799 GST_OBJECT_UNLOCK (tee);
806 GST_OBJECT_UNLOCK (tee);
813 GST_OBJECT_UNLOCK (tee);
814 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
818 cannot_pull_multiple_srcs:
820 GST_OBJECT_UNLOCK (tee);
821 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
822 "pull-mode set to SINGLE");
825 sink_activate_failed:
827 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
834 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
840 tee = GST_TEE (parent);
842 switch (GST_QUERY_TYPE (query)) {
843 case GST_QUERY_SCHEDULING:
847 GST_OBJECT_LOCK (tee);
849 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
850 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
853 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
854 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
855 "pull-mode set to SINGLE");
859 sinkpad = gst_object_ref (tee->sinkpad);
860 GST_OBJECT_UNLOCK (tee);
863 /* ask peer if we can operate in pull mode */
864 res = gst_pad_peer_query (sinkpad, query);
868 gst_object_unref (sinkpad);
872 res = gst_pad_query_default (pad, parent, query);
880 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
882 GstPad *pad = g_value_get_object (vpad);
884 if (pad != tee->pull_pad)
885 gst_pad_push_event (pad, gst_event_new_eos ());
889 gst_tee_pull_eos (GstTee * tee)
893 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
894 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
896 gst_iterator_free (iter);
900 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
901 guint length, GstBuffer ** buf)
906 tee = GST_TEE (parent);
908 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
910 if (ret == GST_FLOW_OK)
911 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
912 else if (ret == GST_FLOW_EOS)
913 gst_tee_pull_eos (tee);