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 = GST_STATIC_PAD_TEMPLATE ("src%d",
106 GST_STATIC_CAPS_ANY);
108 /* structure and quark to keep track of which pads have been pushed */
109 static GQuark push_data;
112 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element"); \
113 push_data = g_quark_from_static_string ("tee-push-data");
114 #define gst_tee_parent_class parent_class
115 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
117 static GParamSpec *pspec_last_message = NULL;
118 static GParamSpec *pspec_alloc_pad = NULL;
123 GstFlowReturn result;
127 static GstPad *gst_tee_request_new_pad (GstElement * element,
128 GstPadTemplate * temp, const gchar * unused);
129 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
131 static void gst_tee_finalize (GObject * object);
132 static void gst_tee_set_property (GObject * object, guint prop_id,
133 const GValue * value, GParamSpec * pspec);
134 static void gst_tee_get_property (GObject * object, guint prop_id,
135 GValue * value, GParamSpec * pspec);
136 static void gst_tee_dispose (GObject * object);
138 static GstFlowReturn gst_tee_chain (GstPad * pad, GstBuffer * buffer);
139 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstBufferList * list);
140 static gboolean gst_tee_sink_acceptcaps (GstPad * pad, GstCaps * caps);
141 static gboolean gst_tee_sink_activate_push (GstPad * pad, gboolean active);
142 static gboolean gst_tee_src_check_get_range (GstPad * pad);
143 static gboolean gst_tee_src_activate_pull (GstPad * pad, gboolean active);
144 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, guint64 offset,
145 guint length, GstBuffer ** buf);
148 gst_tee_dispose (GObject * object)
153 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
154 GstPad *pad = GST_PAD (item->data);
155 if (GST_PAD_IS_SRC (pad)) {
156 gst_element_release_request_pad (GST_ELEMENT (object), pad);
161 G_OBJECT_CLASS (parent_class)->dispose (object);
165 gst_tee_finalize (GObject * object)
169 tee = GST_TEE (object);
171 g_free (tee->last_message);
173 g_mutex_free (tee->dyn_lock);
175 G_OBJECT_CLASS (parent_class)->finalize (object);
179 gst_tee_class_init (GstTeeClass * klass)
181 GObjectClass *gobject_class;
182 GstElementClass *gstelement_class;
184 gobject_class = G_OBJECT_CLASS (klass);
185 gstelement_class = GST_ELEMENT_CLASS (klass);
187 gobject_class->finalize = gst_tee_finalize;
188 gobject_class->set_property = gst_tee_set_property;
189 gobject_class->get_property = gst_tee_get_property;
190 gobject_class->dispose = gst_tee_dispose;
192 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
193 g_param_spec_int ("num-src-pads", "Num Src Pads",
194 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
195 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
196 g_object_class_install_property (gobject_class, PROP_HAS_SINK_LOOP,
197 g_param_spec_boolean ("has-sink-loop", "Has Sink Loop",
198 "If the element should spawn a thread (unimplemented and deprecated)",
199 DEFAULT_PROP_HAS_SINK_LOOP,
200 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
201 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
202 g_param_spec_boolean ("has-chain", "Has Chain",
203 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
204 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
205 g_object_class_install_property (gobject_class, PROP_SILENT,
206 g_param_spec_boolean ("silent", "Silent",
207 "Don't produce last_message events", DEFAULT_PROP_SILENT,
208 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
209 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
210 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
211 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
212 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
214 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
215 g_param_spec_enum ("pull-mode", "Pull mode",
216 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
218 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
219 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
220 "The pad used for gst_pad_alloc_buffer", GST_TYPE_PAD,
221 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
222 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
225 gst_element_class_set_details_simple (gstelement_class,
228 "1-to-N pipe fitting",
229 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
230 gst_element_class_add_pad_template (gstelement_class,
231 gst_static_pad_template_get (&sinktemplate));
232 gst_element_class_add_pad_template (gstelement_class,
233 gst_static_pad_template_get (&tee_src_template));
235 gstelement_class->request_new_pad =
236 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
237 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
241 gst_tee_init (GstTee * tee)
243 tee->dyn_lock = g_mutex_new ();
245 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
246 tee->sink_mode = GST_ACTIVATE_NONE;
248 gst_pad_set_setcaps_function (tee->sinkpad,
249 GST_DEBUG_FUNCPTR (gst_pad_proxy_setcaps));
250 gst_pad_set_getcaps_function (tee->sinkpad,
251 GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
252 gst_pad_set_acceptcaps_function (tee->sinkpad,
253 GST_DEBUG_FUNCPTR (gst_tee_sink_acceptcaps));
254 gst_pad_set_activatepush_function (tee->sinkpad,
255 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_push));
256 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
257 gst_pad_set_chain_list_function (tee->sinkpad,
258 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
259 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
261 tee->last_message = NULL;
265 gst_tee_notify_alloc_pad (GstTee * tee)
267 #if !GLIB_CHECK_VERSION(2,26,0)
268 g_object_notify ((GObject *) tee, "alloc-pad");
270 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
275 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
276 const gchar * unused)
281 GstActivateMode mode;
285 tee = GST_TEE (element);
287 GST_DEBUG_OBJECT (tee, "requesting pad");
289 GST_OBJECT_LOCK (tee);
290 name = g_strdup_printf ("src%d", tee->pad_counter++);
292 srcpad = gst_pad_new_from_template (templ, name);
295 mode = tee->sink_mode;
297 /* install the data, we automatically free it when the pad is disposed because
298 * of _release_pad or when the element goes away. */
299 data = g_new0 (PushData, 1);
300 data->pushed = FALSE;
301 data->result = GST_FLOW_NOT_LINKED;
302 data->removed = FALSE;
303 g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
305 GST_OBJECT_UNLOCK (tee);
308 case GST_ACTIVATE_PULL:
309 /* we already have a src pad in pull mode, and our pull mode can only be
310 SINGLE, so fall through to activate this new pad in push mode */
311 case GST_ACTIVATE_PUSH:
312 res = gst_pad_activate_push (srcpad, TRUE);
320 goto activate_failed;
322 gst_pad_set_setcaps_function (srcpad,
323 GST_DEBUG_FUNCPTR (gst_pad_proxy_setcaps));
324 gst_pad_set_getcaps_function (srcpad,
325 GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
326 gst_pad_set_activatepull_function (srcpad,
327 GST_DEBUG_FUNCPTR (gst_tee_src_activate_pull));
328 gst_pad_set_checkgetrange_function (srcpad,
329 GST_DEBUG_FUNCPTR (gst_tee_src_check_get_range));
330 gst_pad_set_getrange_function (srcpad,
331 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
332 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
339 gboolean changed = FALSE;
341 GST_OBJECT_LOCK (tee);
342 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
343 if (tee->allocpad == srcpad) {
344 tee->allocpad = NULL;
347 GST_OBJECT_UNLOCK (tee);
348 gst_object_unref (srcpad);
350 gst_tee_notify_alloc_pad (tee);
357 gst_tee_release_pad (GstElement * element, GstPad * pad)
361 gboolean changed = FALSE;
363 tee = GST_TEE (element);
365 GST_DEBUG_OBJECT (tee, "releasing pad");
367 /* wait for pending pad_alloc to finish */
368 GST_TEE_DYN_LOCK (tee);
369 data = g_object_get_qdata (G_OBJECT (pad), push_data);
371 GST_OBJECT_LOCK (tee);
372 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
373 data->removed = TRUE;
374 if (tee->allocpad == pad) {
375 tee->allocpad = NULL;
378 GST_OBJECT_UNLOCK (tee);
380 gst_pad_set_active (pad, FALSE);
382 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
383 GST_TEE_DYN_UNLOCK (tee);
386 gst_tee_notify_alloc_pad (tee);
391 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
394 GstTee *tee = GST_TEE (object);
396 GST_OBJECT_LOCK (tee);
398 case PROP_HAS_SINK_LOOP:
399 tee->has_sink_loop = g_value_get_boolean (value);
400 if (tee->has_sink_loop) {
401 g_warning ("tee will never implement has-sink-loop==TRUE");
405 tee->has_chain = g_value_get_boolean (value);
408 tee->silent = g_value_get_boolean (value);
411 tee->pull_mode = g_value_get_enum (value);
415 GstPad *pad = g_value_get_object (value);
416 GST_OBJECT_LOCK (pad);
417 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
420 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
421 " is not my pad", GST_OBJECT_NAME (pad));
422 GST_OBJECT_UNLOCK (pad);
426 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
429 GST_OBJECT_UNLOCK (tee);
433 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
436 GstTee *tee = GST_TEE (object);
438 GST_OBJECT_LOCK (tee);
440 case PROP_NUM_SRC_PADS:
441 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
443 case PROP_HAS_SINK_LOOP:
444 g_value_set_boolean (value, tee->has_sink_loop);
447 g_value_set_boolean (value, tee->has_chain);
450 g_value_set_boolean (value, tee->silent);
452 case PROP_LAST_MESSAGE:
453 g_value_set_string (value, tee->last_message);
456 g_value_set_enum (value, tee->pull_mode);
459 g_value_set_object (value, tee->allocpad);
462 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
465 GST_OBJECT_UNLOCK (tee);
468 /* on the sink we accept caps that are acceptable to all srcpads */
470 gst_tee_sink_acceptcaps (GstPad * pad, GstCaps * caps)
476 tee = GST_TEE_CAST (GST_PAD_PARENT (pad));
478 it = gst_element_iterate_src_pads (GST_ELEMENT_CAST (tee));
482 while (!done && res) {
485 switch (gst_iterator_next (it, &item)) {
486 case GST_ITERATOR_OK:
487 res &= gst_pad_peer_accept_caps (GST_PAD_CAST (item), caps);
488 gst_object_unref (item);
490 case GST_ITERATOR_RESYNC:
492 gst_iterator_resync (it);
494 case GST_ITERATOR_ERROR:
498 case GST_ITERATOR_DONE:
503 gst_iterator_free (it);
509 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
511 GST_OBJECT_LOCK (tee);
512 g_free (tee->last_message);
515 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
516 GST_DEBUG_PAD_NAME (pad), data);
519 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
520 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
521 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
523 GST_OBJECT_UNLOCK (tee);
525 #if !GLIB_CHECK_VERSION(2,26,0)
526 g_object_notify ((GObject *) tee, "last-message");
528 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
533 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
538 if (pad == tee->pull_pad) {
539 /* don't push on the pad we're pulling from */
541 } else if (is_list) {
543 gst_pad_push_list (pad,
544 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
546 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
552 clear_pads (GstPad * pad, GstTee * tee)
556 data = g_object_get_qdata ((GObject *) pad, push_data);
558 /* the data must be there or we have a screwed up internal state */
559 g_assert (data != NULL);
561 data->pushed = FALSE;
562 data->result = GST_FLOW_NOT_LINKED;
566 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
570 GstFlowReturn ret, cret;
572 if (G_UNLIKELY (!tee->silent))
573 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
575 GST_OBJECT_LOCK (tee);
576 pads = GST_ELEMENT_CAST (tee)->srcpads;
578 /* special case for zero pads */
579 if (G_UNLIKELY (!pads))
582 /* special case for just one pad that avoids reffing the buffer */
584 GstPad *pad = GST_PAD_CAST (pads->data);
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));
598 /* mark all pads as 'not pushed on yet' */
599 g_list_foreach (pads, (GFunc) clear_pads, tee);
602 cret = GST_FLOW_NOT_LINKED;
603 pads = GST_ELEMENT_CAST (tee)->srcpads;
604 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
610 pad = GST_PAD_CAST (pads->data);
612 /* get the private data, something is really wrong with the internal state
613 * when it is not there */
614 pdata = g_object_get_qdata ((GObject *) pad, push_data);
615 g_assert (pdata != NULL);
617 if (G_LIKELY (!pdata->pushed)) {
618 /* not yet pushed, release lock and start pushing */
619 gst_object_ref (pad);
620 GST_OBJECT_UNLOCK (tee);
622 GST_LOG_OBJECT (tee, "Starting to push %s %p",
623 is_list ? "list" : "buffer", data);
625 ret = gst_tee_do_push (tee, pad, data, is_list);
627 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
628 gst_flow_get_name (ret));
630 GST_OBJECT_LOCK (tee);
631 /* keep track of which pad we pushed and the result value. We need to do
632 * this before we release the refcount on the pad, the PushData is
633 * destroyed when the last ref of the pad goes away. */
634 pdata->pushed = TRUE;
636 gst_object_unref (pad);
638 /* already pushed, use previous return value */
640 GST_LOG_OBJECT (tee, "pad already pushed with %s",
641 gst_flow_get_name (ret));
644 /* before we go combining the return value, check if the pad list is still
645 * the same. It could be possible that the pad we just pushed was removed
646 * and the return value it not valid anymore */
647 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
648 GST_LOG_OBJECT (tee, "pad list changed");
649 /* the list of pads changed, restart iteration. Pads that we already
650 * pushed on and are still in the new list, will not be pushed on
655 /* stop pushing more buffers when we have a fatal error */
656 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
659 /* keep all other return values, overwriting the previous one. */
660 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
661 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
664 pads = g_list_next (pads);
666 GST_OBJECT_UNLOCK (tee);
668 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
670 /* no need to unset gvalue */
676 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
677 ret = GST_FLOW_NOT_LINKED;
682 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
683 GST_OBJECT_UNLOCK (tee);
684 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
690 gst_tee_chain (GstPad * pad, GstBuffer * buffer)
695 tee = GST_TEE_CAST (GST_OBJECT_PARENT (pad));
697 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
699 res = gst_tee_handle_data (tee, buffer, FALSE);
701 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
707 gst_tee_chain_list (GstPad * pad, GstBufferList * list)
712 tee = GST_TEE_CAST (gst_pad_get_parent (pad));
714 GST_DEBUG_OBJECT (tee, "received list %p", list);
716 res = gst_tee_handle_data (tee, list, TRUE);
718 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
720 gst_object_unref (tee);
726 gst_tee_sink_activate_push (GstPad * pad, gboolean active)
730 tee = GST_TEE (GST_OBJECT_PARENT (pad));
732 GST_OBJECT_LOCK (tee);
733 tee->sink_mode = active && GST_ACTIVATE_PUSH;
735 if (active && !tee->has_chain)
737 GST_OBJECT_UNLOCK (tee);
744 GST_OBJECT_UNLOCK (tee);
745 GST_INFO_OBJECT (tee,
746 "Tee cannot operate in push mode with has-chain==FALSE");
752 gst_tee_src_activate_pull (GstPad * pad, gboolean active)
758 tee = GST_TEE (gst_pad_get_parent (pad));
760 GST_OBJECT_LOCK (tee);
762 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
765 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
766 goto cannot_pull_multiple_srcs;
768 sinkpad = gst_object_ref (tee->sinkpad);
770 GST_OBJECT_UNLOCK (tee);
772 res = gst_pad_activate_pull (sinkpad, active);
773 gst_object_unref (sinkpad);
776 goto sink_activate_failed;
778 GST_OBJECT_LOCK (tee);
780 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
783 if (pad == tee->pull_pad)
784 tee->pull_pad = NULL;
786 tee->sink_mode = active && GST_ACTIVATE_PULL;
787 GST_OBJECT_UNLOCK (tee);
789 gst_object_unref (tee);
796 GST_OBJECT_UNLOCK (tee);
797 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
799 gst_object_unref (tee);
802 cannot_pull_multiple_srcs:
804 GST_OBJECT_UNLOCK (tee);
805 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
806 "pull-mode set to SINGLE");
807 gst_object_unref (tee);
810 sink_activate_failed:
812 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
814 gst_object_unref (tee);
820 gst_tee_src_check_get_range (GstPad * pad)
826 tee = GST_TEE (gst_pad_get_parent (pad));
828 GST_OBJECT_LOCK (tee);
830 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
833 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad)
834 goto cannot_pull_multiple_srcs;
836 sinkpad = gst_object_ref (tee->sinkpad);
838 GST_OBJECT_UNLOCK (tee);
840 res = gst_pad_check_pull_range (sinkpad);
841 gst_object_unref (sinkpad);
843 gst_object_unref (tee);
850 GST_OBJECT_UNLOCK (tee);
851 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
853 gst_object_unref (tee);
856 cannot_pull_multiple_srcs:
858 GST_OBJECT_UNLOCK (tee);
859 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
860 "pull-mode set to SINGLE");
861 gst_object_unref (tee);
867 gst_tee_push_eos (GstPad * pad, GstTee * tee)
869 if (pad != tee->pull_pad)
870 gst_pad_push_event (pad, gst_event_new_eos ());
871 gst_object_unref (pad);
875 gst_tee_pull_eos (GstTee * tee)
879 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
880 gst_iterator_foreach (iter, (GFunc) gst_tee_push_eos, tee);
881 gst_iterator_free (iter);
885 gst_tee_src_get_range (GstPad * pad, guint64 offset, guint length,
891 tee = GST_TEE (gst_pad_get_parent (pad));
893 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
895 if (ret == GST_FLOW_OK)
896 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
897 else if (ret == GST_FLOW_UNEXPECTED)
898 gst_tee_pull_eos (tee);
900 gst_object_unref (tee);