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 /* 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_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
102 static GstStaticPadTemplate tee_src_template =
103 GST_STATIC_PAD_TEMPLATE ("src_%u",
106 GST_STATIC_CAPS_ANY);
109 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
110 #define gst_tee_parent_class parent_class
111 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
113 static GParamSpec *pspec_last_message = NULL;
114 static GParamSpec *pspec_alloc_pad = NULL;
116 GType gst_tee_pad_get_type (void);
118 #define GST_TYPE_TEE_PAD \
119 (gst_tee_pad_get_type())
120 #define GST_TEE_PAD(obj) \
121 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
122 #define GST_TEE_PAD_CLASS(klass) \
123 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
124 #define GST_IS_TEE_PAD(obj) \
125 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
126 #define GST_IS_TEE_PAD_CLASS(klass) \
127 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
128 #define GST_TEE_PAD_CAST(obj) \
131 typedef struct _GstTeePad GstTeePad;
132 typedef struct _GstTeePadClass GstTeePadClass;
139 GstFlowReturn result;
143 struct _GstTeePadClass
148 G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
151 gst_tee_pad_class_init (GstTeePadClass * klass)
156 gst_tee_pad_reset (GstTeePad * pad)
159 pad->result = GST_FLOW_NOT_LINKED;
160 pad->removed = FALSE;
164 gst_tee_pad_init (GstTeePad * pad)
166 gst_tee_pad_reset (pad);
169 static GstPad *gst_tee_request_new_pad (GstElement * element,
170 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
171 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
173 static void gst_tee_finalize (GObject * object);
174 static void gst_tee_set_property (GObject * object, guint prop_id,
175 const GValue * value, GParamSpec * pspec);
176 static void gst_tee_get_property (GObject * object, guint prop_id,
177 GValue * value, GParamSpec * pspec);
178 static void gst_tee_dispose (GObject * object);
180 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
182 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
183 GstBufferList * list);
184 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
186 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
188 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
189 GstPadMode mode, gboolean active);
190 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
192 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
193 GstPadMode mode, gboolean active);
194 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
195 guint64 offset, guint length, GstBuffer ** buf);
198 gst_tee_dispose (GObject * object)
203 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
204 GstPad *pad = GST_PAD (item->data);
205 if (GST_PAD_IS_SRC (pad)) {
206 gst_element_release_request_pad (GST_ELEMENT (object), pad);
211 G_OBJECT_CLASS (parent_class)->dispose (object);
215 gst_tee_finalize (GObject * object)
219 tee = GST_TEE (object);
221 g_free (tee->last_message);
223 g_mutex_clear (&tee->dyn_lock);
225 G_OBJECT_CLASS (parent_class)->finalize (object);
229 gst_tee_class_init (GstTeeClass * klass)
231 GObjectClass *gobject_class;
232 GstElementClass *gstelement_class;
234 gobject_class = G_OBJECT_CLASS (klass);
235 gstelement_class = GST_ELEMENT_CLASS (klass);
237 gobject_class->finalize = gst_tee_finalize;
238 gobject_class->set_property = gst_tee_set_property;
239 gobject_class->get_property = gst_tee_get_property;
240 gobject_class->dispose = gst_tee_dispose;
242 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
243 g_param_spec_int ("num-src-pads", "Num Src Pads",
244 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
245 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
246 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
247 g_param_spec_boolean ("has-chain", "Has Chain",
248 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
249 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
250 g_object_class_install_property (gobject_class, PROP_SILENT,
251 g_param_spec_boolean ("silent", "Silent",
252 "Don't produce last_message events", DEFAULT_PROP_SILENT,
253 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
254 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
255 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
256 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
257 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
259 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
260 g_param_spec_enum ("pull-mode", "Pull mode",
261 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
263 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
264 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
265 "The pad ALLOCATION queries will be proxied to (unused)", GST_TYPE_PAD,
266 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
267 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
270 gst_element_class_set_static_metadata (gstelement_class,
273 "1-to-N pipe fitting",
274 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
275 gst_element_class_add_pad_template (gstelement_class,
276 gst_static_pad_template_get (&sinktemplate));
277 gst_element_class_add_pad_template (gstelement_class,
278 gst_static_pad_template_get (&tee_src_template));
280 gstelement_class->request_new_pad =
281 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
282 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
286 gst_tee_init (GstTee * tee)
288 g_mutex_init (&tee->dyn_lock);
290 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
291 tee->sink_mode = GST_PAD_MODE_NONE;
293 gst_pad_set_event_function (tee->sinkpad,
294 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
295 gst_pad_set_query_function (tee->sinkpad,
296 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
297 gst_pad_set_activatemode_function (tee->sinkpad,
298 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
299 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
300 gst_pad_set_chain_list_function (tee->sinkpad,
301 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
302 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
303 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
305 tee->last_message = NULL;
309 gst_tee_notify_alloc_pad (GstTee * tee)
311 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
315 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
317 GstPad *srcpad = GST_PAD_CAST (user_data);
319 gst_pad_push_event (srcpad, gst_event_ref (*event));
325 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
326 const gchar * unused, const GstCaps * caps)
334 tee = GST_TEE (element);
336 GST_DEBUG_OBJECT (tee, "requesting pad");
338 GST_OBJECT_LOCK (tee);
339 name = g_strdup_printf ("src_%u", tee->pad_counter++);
341 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
342 "name", name, "direction", templ->direction, "template", templ,
346 mode = tee->sink_mode;
348 GST_OBJECT_UNLOCK (tee);
351 case GST_PAD_MODE_PULL:
352 /* we already have a src pad in pull mode, and our pull mode can only be
353 SINGLE, so fall through to activate this new pad in push mode */
354 case GST_PAD_MODE_PUSH:
355 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
363 goto activate_failed;
365 gst_pad_set_activatemode_function (srcpad,
366 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
367 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
368 gst_pad_set_getrange_function (srcpad,
369 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
370 /* Forward sticky events to the new srcpad */
371 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
372 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
373 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
380 gboolean changed = FALSE;
382 GST_OBJECT_LOCK (tee);
383 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
384 if (tee->allocpad == srcpad) {
385 tee->allocpad = NULL;
388 GST_OBJECT_UNLOCK (tee);
389 gst_object_unref (srcpad);
391 gst_tee_notify_alloc_pad (tee);
398 gst_tee_release_pad (GstElement * element, GstPad * pad)
401 gboolean changed = FALSE;
403 tee = GST_TEE (element);
405 GST_DEBUG_OBJECT (tee, "releasing pad");
407 /* wait for pending pad_alloc to finish */
408 GST_TEE_DYN_LOCK (tee);
409 GST_OBJECT_LOCK (tee);
410 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
411 GST_TEE_PAD_CAST (pad)->removed = TRUE;
412 if (tee->allocpad == pad) {
413 tee->allocpad = NULL;
416 GST_OBJECT_UNLOCK (tee);
418 gst_object_ref (pad);
419 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
421 gst_pad_set_active (pad, FALSE);
422 GST_TEE_DYN_UNLOCK (tee);
424 gst_object_unref (pad);
427 gst_tee_notify_alloc_pad (tee);
432 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
435 GstTee *tee = GST_TEE (object);
437 GST_OBJECT_LOCK (tee);
440 tee->has_chain = g_value_get_boolean (value);
443 tee->silent = g_value_get_boolean (value);
446 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
450 GstPad *pad = g_value_get_object (value);
451 GST_OBJECT_LOCK (pad);
452 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
455 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
456 " is not my pad", GST_OBJECT_NAME (pad));
457 GST_OBJECT_UNLOCK (pad);
461 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
464 GST_OBJECT_UNLOCK (tee);
468 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
471 GstTee *tee = GST_TEE (object);
473 GST_OBJECT_LOCK (tee);
475 case PROP_NUM_SRC_PADS:
476 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
479 g_value_set_boolean (value, tee->has_chain);
482 g_value_set_boolean (value, tee->silent);
484 case PROP_LAST_MESSAGE:
485 g_value_set_string (value, tee->last_message);
488 g_value_set_enum (value, tee->pull_mode);
491 g_value_set_object (value, tee->allocpad);
494 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
497 GST_OBJECT_UNLOCK (tee);
501 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
505 switch (GST_EVENT_TYPE (event)) {
507 res = gst_pad_event_default (pad, parent, event);
515 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
519 switch (GST_QUERY_TYPE (query)) {
521 res = gst_pad_query_default (pad, parent, query);
528 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
530 GST_OBJECT_LOCK (tee);
531 g_free (tee->last_message);
534 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
535 GST_DEBUG_PAD_NAME (pad), data);
538 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
539 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
540 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
542 GST_OBJECT_UNLOCK (tee);
544 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
548 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
553 if (pad == tee->pull_pad) {
554 /* don't push on the pad we're pulling from */
556 } else if (is_list) {
558 gst_pad_push_list (pad,
559 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
561 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
567 clear_pads (GstPad * pad, GstTee * tee)
569 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
570 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
574 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
578 GstFlowReturn ret, cret;
580 if (G_UNLIKELY (!tee->silent))
581 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
583 GST_OBJECT_LOCK (tee);
584 pads = GST_ELEMENT_CAST (tee)->srcpads;
586 /* special case for zero pads */
587 if (G_UNLIKELY (!pads))
590 /* special case for just one pad that avoids reffing the buffer */
592 GstPad *pad = GST_PAD_CAST (pads->data);
594 GST_OBJECT_UNLOCK (tee);
596 if (pad == tee->pull_pad) {
598 } else if (is_list) {
599 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
601 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
606 /* mark all pads as 'not pushed on yet' */
607 g_list_foreach (pads, (GFunc) clear_pads, tee);
610 cret = GST_FLOW_NOT_LINKED;
611 pads = GST_ELEMENT_CAST (tee)->srcpads;
612 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
617 pad = GST_PAD_CAST (pads->data);
619 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
620 /* not yet pushed, release lock and start pushing */
621 gst_object_ref (pad);
622 GST_OBJECT_UNLOCK (tee);
624 GST_LOG_OBJECT (tee, "Starting to push %s %p",
625 is_list ? "list" : "buffer", data);
627 ret = gst_tee_do_push (tee, pad, data, is_list);
629 GST_LOG_OBJECT (tee, "Pushing item %p yielded result %s", data,
630 gst_flow_get_name (ret));
632 GST_OBJECT_LOCK (tee);
633 /* keep track of which pad we pushed and the result value */
634 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
635 GST_TEE_PAD_CAST (pad)->result = ret;
636 gst_object_unref (pad);
638 /* already pushed, use previous return value */
639 ret = GST_TEE_PAD_CAST (pad)->result;
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, GstObject * parent, GstBuffer * buffer)
695 tee = GST_TEE_CAST (parent);
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, GstObject * parent, GstBufferList * list)
712 tee = GST_TEE_CAST (parent);
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));
724 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
730 tee = GST_TEE (parent);
733 case GST_PAD_MODE_PUSH:
735 GST_OBJECT_LOCK (tee);
736 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
738 if (active && !tee->has_chain)
740 GST_OBJECT_UNLOCK (tee);
753 GST_OBJECT_UNLOCK (tee);
754 GST_INFO_OBJECT (tee,
755 "Tee cannot operate in push mode with has-chain==FALSE");
761 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
768 tee = GST_TEE (parent);
771 case GST_PAD_MODE_PULL:
773 GST_OBJECT_LOCK (tee);
775 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
778 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
779 goto cannot_pull_multiple_srcs;
781 sinkpad = gst_object_ref (tee->sinkpad);
783 GST_OBJECT_UNLOCK (tee);
785 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
786 gst_object_unref (sinkpad);
789 goto sink_activate_failed;
791 GST_OBJECT_LOCK (tee);
793 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
796 if (pad == tee->pull_pad)
797 tee->pull_pad = NULL;
799 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
800 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);