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-1.0 filesrc location=song.ogg ! decodebin ! tee name=t ! queue ! audioconvert ! audioresample ! autoaudiosink t. ! queue ! audioconvert ! goom ! videoconvert ! autovideosink
41 * ]| Play song.ogg audio file which must be in the current working directory
42 * and render visualisations using the goom element (this can be easier done
43 * using the playbin element, this is just an example pipeline).
52 #include "gst/glib-compat-private.h"
57 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
62 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
63 #define GST_CAT_DEFAULT gst_tee_debug
65 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
67 gst_tee_pull_mode_get_type (void)
69 static GType type = 0;
70 static const GEnumValue data[] = {
71 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
72 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
78 type = g_enum_register_static ("GstTeePullMode", data);
83 #define DEFAULT_PROP_NUM_SRC_PADS 0
84 #define DEFAULT_PROP_HAS_CHAIN TRUE
85 #define DEFAULT_PROP_SILENT TRUE
86 #define DEFAULT_PROP_LAST_MESSAGE NULL
87 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
88 #define DEFAULT_PROP_ALLOW_NOT_LINKED FALSE
99 PROP_ALLOW_NOT_LINKED,
102 static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src_%u",
105 GST_STATIC_CAPS_ANY);
108 GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
109 #define gst_tee_parent_class parent_class
110 G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
112 static GParamSpec *pspec_last_message = NULL;
113 static GParamSpec *pspec_alloc_pad = NULL;
115 GType gst_tee_pad_get_type (void);
117 #define GST_TYPE_TEE_PAD \
118 (gst_tee_pad_get_type())
119 #define GST_TEE_PAD(obj) \
120 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
121 #define GST_TEE_PAD_CLASS(klass) \
122 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
123 #define GST_IS_TEE_PAD(obj) \
124 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
125 #define GST_IS_TEE_PAD_CLASS(klass) \
126 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
127 #define GST_TEE_PAD_CAST(obj) \
130 typedef struct _GstTeePad GstTeePad;
131 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_hash_table_unref (tee->pad_indexes);
223 g_free (tee->last_message);
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,
271 * GstTee:allow-not-linked
273 * This property makes sink pad return GST_FLOW_OK even if there are no
274 * source pads or any of them is linked.
276 * This is useful to avoid errors when you have a dynamic pipeline and during
277 * a reconnection you can have all the pads unlinked or removed.
281 g_object_class_install_property (gobject_class, PROP_ALLOW_NOT_LINKED,
282 g_param_spec_boolean ("allow-not-linked", "Allow not linked",
283 "Return GST_FLOW_OK even if there are no source pads or they are "
284 "all unlinked", DEFAULT_PROP_ALLOW_NOT_LINKED,
285 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
287 gst_element_class_set_static_metadata (gstelement_class,
290 "1-to-N pipe fitting",
291 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
292 gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
293 gst_element_class_add_static_pad_template (gstelement_class, &src_template);
295 gstelement_class->request_new_pad =
296 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
297 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
301 gst_tee_init (GstTee * tee)
303 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
304 tee->sink_mode = GST_PAD_MODE_NONE;
306 gst_pad_set_event_function (tee->sinkpad,
307 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
308 gst_pad_set_query_function (tee->sinkpad,
309 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
310 gst_pad_set_activatemode_function (tee->sinkpad,
311 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
312 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
313 gst_pad_set_chain_list_function (tee->sinkpad,
314 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
315 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
316 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
318 tee->pad_indexes = g_hash_table_new (NULL, NULL);
320 tee->last_message = NULL;
324 gst_tee_notify_alloc_pad (GstTee * tee)
326 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
330 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
332 GstPad *srcpad = GST_PAD_CAST (user_data);
335 ret = gst_pad_store_sticky_event (srcpad, *event);
336 if (ret != GST_FLOW_OK) {
337 GST_DEBUG_OBJECT (srcpad, "storing sticky event %p (%s) failed: %s", *event,
338 GST_EVENT_TYPE_NAME (*event), gst_flow_get_name (ret));
345 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
346 const gchar * name_templ, const GstCaps * caps)
355 tee = GST_TEE (element);
357 GST_DEBUG_OBJECT (tee, "requesting pad");
359 GST_OBJECT_LOCK (tee);
361 if (name_templ && sscanf (name_templ, "src_%u", &index) == 1) {
362 GST_LOG_OBJECT (element, "name: %s (index %d)", name_templ, index);
363 if (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index))) {
364 GST_ERROR_OBJECT (element, "pad name %s is not unique", name_templ);
365 GST_OBJECT_UNLOCK (tee);
368 if (index >= tee->next_pad_index)
369 tee->next_pad_index = index + 1;
371 index = tee->next_pad_index;
373 while (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index)))
376 tee->next_pad_index = index + 1;
379 g_hash_table_insert (tee->pad_indexes, GUINT_TO_POINTER (index), NULL);
381 name = g_strdup_printf ("src_%u", index);
383 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
384 "name", name, "direction", templ->direction, "template", templ,
386 GST_TEE_PAD_CAST (srcpad)->index = index;
389 mode = tee->sink_mode;
391 GST_OBJECT_UNLOCK (tee);
394 case GST_PAD_MODE_PULL:
395 /* we already have a src pad in pull mode, and our pull mode can only be
396 SINGLE, so fall through to activate this new pad in push mode */
397 case GST_PAD_MODE_PUSH:
398 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
406 goto activate_failed;
408 gst_pad_set_activatemode_function (srcpad,
409 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
410 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
411 gst_pad_set_getrange_function (srcpad,
412 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
413 /* Forward sticky events to the new srcpad */
414 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
415 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
416 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
423 gboolean changed = FALSE;
425 GST_OBJECT_LOCK (tee);
426 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
427 if (tee->allocpad == srcpad) {
428 tee->allocpad = NULL;
431 GST_OBJECT_UNLOCK (tee);
432 gst_object_unref (srcpad);
434 gst_tee_notify_alloc_pad (tee);
441 gst_tee_release_pad (GstElement * element, GstPad * pad)
444 gboolean changed = FALSE;
447 tee = GST_TEE (element);
449 GST_DEBUG_OBJECT (tee, "releasing pad");
451 GST_OBJECT_LOCK (tee);
452 index = GST_TEE_PAD_CAST (pad)->index;
453 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
454 GST_TEE_PAD_CAST (pad)->removed = TRUE;
455 if (tee->allocpad == pad) {
456 tee->allocpad = NULL;
459 GST_OBJECT_UNLOCK (tee);
461 gst_object_ref (pad);
462 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
464 gst_pad_set_active (pad, FALSE);
466 gst_object_unref (pad);
469 gst_tee_notify_alloc_pad (tee);
472 GST_OBJECT_LOCK (tee);
473 g_hash_table_remove (tee->pad_indexes, GUINT_TO_POINTER (index));
474 GST_OBJECT_UNLOCK (tee);
478 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
481 GstTee *tee = GST_TEE (object);
483 GST_OBJECT_LOCK (tee);
486 tee->has_chain = g_value_get_boolean (value);
489 tee->silent = g_value_get_boolean (value);
492 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
496 GstPad *pad = g_value_get_object (value);
497 GST_OBJECT_LOCK (pad);
498 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
501 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
502 " is not my pad", GST_OBJECT_NAME (pad));
503 GST_OBJECT_UNLOCK (pad);
506 case PROP_ALLOW_NOT_LINKED:
507 tee->allow_not_linked = g_value_get_boolean (value);
510 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
513 GST_OBJECT_UNLOCK (tee);
517 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
520 GstTee *tee = GST_TEE (object);
522 GST_OBJECT_LOCK (tee);
524 case PROP_NUM_SRC_PADS:
525 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
528 g_value_set_boolean (value, tee->has_chain);
531 g_value_set_boolean (value, tee->silent);
533 case PROP_LAST_MESSAGE:
534 g_value_set_string (value, tee->last_message);
537 g_value_set_enum (value, tee->pull_mode);
540 g_value_set_object (value, tee->allocpad);
542 case PROP_ALLOW_NOT_LINKED:
543 g_value_set_boolean (value, tee->allow_not_linked);
546 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
549 GST_OBJECT_UNLOCK (tee);
553 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
557 switch (GST_EVENT_TYPE (event)) {
559 res = gst_pad_event_default (pad, parent, event);
567 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
571 switch (GST_QUERY_TYPE (query)) {
573 res = gst_pad_query_default (pad, parent, query);
580 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
582 GST_OBJECT_LOCK (tee);
583 g_free (tee->last_message);
586 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
587 GST_DEBUG_PAD_NAME (pad), data);
590 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
591 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
592 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
594 GST_OBJECT_UNLOCK (tee);
596 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
600 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
605 if (pad == tee->pull_pad) {
606 /* don't push on the pad we're pulling from */
608 } else if (is_list) {
610 gst_pad_push_list (pad,
611 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
613 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
619 clear_pads (GstPad * pad, GstTee * tee)
621 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
622 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
626 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
630 GstFlowReturn ret, cret;
632 if (G_UNLIKELY (!tee->silent))
633 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
635 GST_OBJECT_LOCK (tee);
636 pads = GST_ELEMENT_CAST (tee)->srcpads;
638 /* special case for zero pads */
639 if (G_UNLIKELY (!pads))
642 /* special case for just one pad that avoids reffing the buffer */
644 GstPad *pad = GST_PAD_CAST (pads->data);
646 /* Keep another ref around, a pad probe
647 * might release and destroy the pad */
648 gst_object_ref (pad);
649 GST_OBJECT_UNLOCK (tee);
651 if (pad == tee->pull_pad) {
653 } else if (is_list) {
654 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
656 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
659 if (GST_TEE_PAD_CAST (pad)->removed)
660 ret = GST_FLOW_NOT_LINKED;
662 if (ret == GST_FLOW_NOT_LINKED && tee->allow_not_linked) {
666 gst_object_unref (pad);
671 /* mark all pads as 'not pushed on yet' */
672 g_list_foreach (pads, (GFunc) clear_pads, tee);
675 if (tee->allow_not_linked) {
678 cret = GST_FLOW_NOT_LINKED;
680 pads = GST_ELEMENT_CAST (tee)->srcpads;
681 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
686 pad = GST_PAD_CAST (pads->data);
688 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
689 /* not yet pushed, release lock and start pushing */
690 gst_object_ref (pad);
691 GST_OBJECT_UNLOCK (tee);
693 GST_LOG_OBJECT (pad, "Starting to push %s %p",
694 is_list ? "list" : "buffer", data);
696 ret = gst_tee_do_push (tee, pad, data, is_list);
698 GST_LOG_OBJECT (pad, "Pushing item %p yielded result %s", data,
699 gst_flow_get_name (ret));
701 GST_OBJECT_LOCK (tee);
702 /* keep track of which pad we pushed and the result value */
703 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
704 GST_TEE_PAD_CAST (pad)->result = ret;
705 gst_object_unref (pad);
708 /* already pushed, use previous return value */
709 ret = GST_TEE_PAD_CAST (pad)->result;
710 GST_LOG_OBJECT (pad, "pad already pushed with %s",
711 gst_flow_get_name (ret));
714 /* before we go combining the return value, check if the pad list is still
715 * the same. It could be possible that the pad we just pushed was removed
716 * and the return value it not valid anymore */
717 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
718 GST_LOG_OBJECT (tee, "pad list changed");
719 /* the list of pads changed, restart iteration. Pads that we already
720 * pushed on and are still in the new list, will not be pushed on
725 /* stop pushing more buffers when we have a fatal error */
726 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
729 /* keep all other return values, overwriting the previous one. */
730 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
731 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
734 pads = g_list_next (pads);
736 GST_OBJECT_UNLOCK (tee);
738 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
740 /* no need to unset gvalue */
746 if (tee->allow_not_linked) {
747 GST_DEBUG_OBJECT (tee, "there are no pads, dropping %s",
748 is_list ? "buffer-list" : "buffer");
751 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
752 ret = GST_FLOW_NOT_LINKED;
758 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
763 GST_OBJECT_UNLOCK (tee);
764 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
770 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
775 tee = GST_TEE_CAST (parent);
777 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
779 res = gst_tee_handle_data (tee, buffer, FALSE);
781 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
787 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
792 tee = GST_TEE_CAST (parent);
794 GST_DEBUG_OBJECT (tee, "received list %p", list);
796 res = gst_tee_handle_data (tee, list, TRUE);
798 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
804 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
810 tee = GST_TEE (parent);
813 case GST_PAD_MODE_PUSH:
815 GST_OBJECT_LOCK (tee);
816 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
818 if (active && !tee->has_chain)
820 GST_OBJECT_UNLOCK (tee);
833 GST_OBJECT_UNLOCK (tee);
834 GST_INFO_OBJECT (tee,
835 "Tee cannot operate in push mode with has-chain==FALSE");
841 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
848 tee = GST_TEE (parent);
851 case GST_PAD_MODE_PULL:
853 GST_OBJECT_LOCK (tee);
855 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
858 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
859 goto cannot_pull_multiple_srcs;
861 sinkpad = gst_object_ref (tee->sinkpad);
863 GST_OBJECT_UNLOCK (tee);
865 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
866 gst_object_unref (sinkpad);
869 goto sink_activate_failed;
871 GST_OBJECT_LOCK (tee);
873 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
876 if (pad == tee->pull_pad)
877 tee->pull_pad = NULL;
879 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
880 GST_OBJECT_UNLOCK (tee);
893 GST_OBJECT_UNLOCK (tee);
894 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
898 cannot_pull_multiple_srcs:
900 GST_OBJECT_UNLOCK (tee);
901 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
902 "pull-mode set to SINGLE");
905 sink_activate_failed:
907 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
914 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
920 tee = GST_TEE (parent);
922 switch (GST_QUERY_TYPE (query)) {
923 case GST_QUERY_SCHEDULING:
927 GST_OBJECT_LOCK (tee);
929 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
930 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
933 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
934 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
935 "pull-mode set to SINGLE");
939 sinkpad = gst_object_ref (tee->sinkpad);
940 GST_OBJECT_UNLOCK (tee);
943 /* ask peer if we can operate in pull mode */
944 res = gst_pad_peer_query (sinkpad, query);
948 gst_object_unref (sinkpad);
952 res = gst_pad_query_default (pad, parent, query);
960 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
962 GstPad *pad = g_value_get_object (vpad);
964 if (pad != tee->pull_pad)
965 gst_pad_push_event (pad, gst_event_new_eos ());
969 gst_tee_pull_eos (GstTee * tee)
973 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
974 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
976 gst_iterator_free (iter);
980 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
981 guint length, GstBuffer ** buf)
986 tee = GST_TEE (parent);
988 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
990 if (ret == GST_FLOW_OK)
991 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
992 else if (ret == GST_FLOW_EOS)
993 gst_tee_pull_eos (tee);