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 ! decodebin ! 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"
56 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
61 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
62 #define GST_CAT_DEFAULT gst_tee_debug
64 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
66 gst_tee_pull_mode_get_type (void)
68 static GType type = 0;
69 static const GEnumValue data[] = {
70 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
71 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
77 type = g_enum_register_static ("GstTeePullMode", data);
82 #define DEFAULT_PROP_NUM_SRC_PADS 0
83 #define DEFAULT_PROP_HAS_CHAIN TRUE
84 #define DEFAULT_PROP_SILENT TRUE
85 #define DEFAULT_PROP_LAST_MESSAGE NULL
86 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
87 #define DEFAULT_PROP_ALLOW_NOT_LINKED FALSE
98 PROP_ALLOW_NOT_LINKED,
101 static GstStaticPadTemplate tee_src_template =
102 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 GTS_FLOW_OK even if there are not source pads or all are "
284 "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_pad_template (gstelement_class,
293 gst_static_pad_template_get (&sinktemplate));
294 gst_element_class_add_pad_template (gstelement_class,
295 gst_static_pad_template_get (&tee_src_template));
297 gstelement_class->request_new_pad =
298 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
299 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
303 gst_tee_init (GstTee * tee)
305 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
306 tee->sink_mode = GST_PAD_MODE_NONE;
308 gst_pad_set_event_function (tee->sinkpad,
309 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
310 gst_pad_set_query_function (tee->sinkpad,
311 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
312 gst_pad_set_activatemode_function (tee->sinkpad,
313 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
314 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
315 gst_pad_set_chain_list_function (tee->sinkpad,
316 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
317 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
318 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
320 tee->pad_indexes = g_hash_table_new (NULL, NULL);
322 tee->last_message = NULL;
326 gst_tee_notify_alloc_pad (GstTee * tee)
328 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
332 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
334 GstPad *srcpad = GST_PAD_CAST (user_data);
337 ret = gst_pad_store_sticky_event (srcpad, *event);
338 if (ret != GST_FLOW_OK) {
339 GST_DEBUG_OBJECT (srcpad, "storing sticky event %p (%s) failed: %s", *event,
340 GST_EVENT_TYPE_NAME (*event), gst_flow_get_name (ret));
347 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
348 const gchar * name_templ, const GstCaps * caps)
357 tee = GST_TEE (element);
359 GST_DEBUG_OBJECT (tee, "requesting pad");
361 GST_OBJECT_LOCK (tee);
364 sscanf (name_templ, "src_%u", &index);
365 GST_LOG_OBJECT (element, "name: %s (index %d)", name_templ, index);
366 if (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index))) {
367 GST_ERROR_OBJECT (element, "pad name %s is not unique", name_templ);
368 GST_OBJECT_UNLOCK (tee);
371 if (index >= tee->next_pad_index)
372 tee->next_pad_index = index + 1;
374 index = tee->next_pad_index;
376 while (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index)))
379 tee->next_pad_index = index + 1;
382 g_hash_table_insert (tee->pad_indexes, GUINT_TO_POINTER (index), NULL);
384 name = g_strdup_printf ("src_%u", index);
386 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
387 "name", name, "direction", templ->direction, "template", templ,
389 GST_TEE_PAD_CAST (srcpad)->index = index;
392 mode = tee->sink_mode;
394 GST_OBJECT_UNLOCK (tee);
397 case GST_PAD_MODE_PULL:
398 /* we already have a src pad in pull mode, and our pull mode can only be
399 SINGLE, so fall through to activate this new pad in push mode */
400 case GST_PAD_MODE_PUSH:
401 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
409 goto activate_failed;
411 gst_pad_set_activatemode_function (srcpad,
412 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
413 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
414 gst_pad_set_getrange_function (srcpad,
415 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
416 /* Forward sticky events to the new srcpad */
417 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
418 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
419 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
426 gboolean changed = FALSE;
428 GST_OBJECT_LOCK (tee);
429 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
430 if (tee->allocpad == srcpad) {
431 tee->allocpad = NULL;
434 GST_OBJECT_UNLOCK (tee);
435 gst_object_unref (srcpad);
437 gst_tee_notify_alloc_pad (tee);
444 gst_tee_release_pad (GstElement * element, GstPad * pad)
447 gboolean changed = FALSE;
450 tee = GST_TEE (element);
452 GST_DEBUG_OBJECT (tee, "releasing pad");
454 GST_OBJECT_LOCK (tee);
455 index = GST_TEE_PAD_CAST (pad)->index;
456 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
457 GST_TEE_PAD_CAST (pad)->removed = TRUE;
458 if (tee->allocpad == pad) {
459 tee->allocpad = NULL;
462 GST_OBJECT_UNLOCK (tee);
464 gst_object_ref (pad);
465 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
467 gst_pad_set_active (pad, FALSE);
469 gst_object_unref (pad);
472 gst_tee_notify_alloc_pad (tee);
475 GST_OBJECT_LOCK (tee);
476 g_hash_table_remove (tee->pad_indexes, GUINT_TO_POINTER (index));
477 GST_OBJECT_UNLOCK (tee);
481 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
484 GstTee *tee = GST_TEE (object);
486 GST_OBJECT_LOCK (tee);
489 tee->has_chain = g_value_get_boolean (value);
492 tee->silent = g_value_get_boolean (value);
495 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
499 GstPad *pad = g_value_get_object (value);
500 GST_OBJECT_LOCK (pad);
501 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
504 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
505 " is not my pad", GST_OBJECT_NAME (pad));
506 GST_OBJECT_UNLOCK (pad);
509 case PROP_ALLOW_NOT_LINKED:
510 tee->allow_not_linked = g_value_get_boolean (value);
513 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
516 GST_OBJECT_UNLOCK (tee);
520 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
523 GstTee *tee = GST_TEE (object);
525 GST_OBJECT_LOCK (tee);
527 case PROP_NUM_SRC_PADS:
528 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
531 g_value_set_boolean (value, tee->has_chain);
534 g_value_set_boolean (value, tee->silent);
536 case PROP_LAST_MESSAGE:
537 g_value_set_string (value, tee->last_message);
540 g_value_set_enum (value, tee->pull_mode);
543 g_value_set_object (value, tee->allocpad);
545 case PROP_ALLOW_NOT_LINKED:
546 g_value_set_boolean (value, tee->allow_not_linked);
549 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
552 GST_OBJECT_UNLOCK (tee);
556 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
560 switch (GST_EVENT_TYPE (event)) {
562 res = gst_pad_event_default (pad, parent, event);
570 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
574 switch (GST_QUERY_TYPE (query)) {
576 res = gst_pad_query_default (pad, parent, query);
583 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
585 GST_OBJECT_LOCK (tee);
586 g_free (tee->last_message);
589 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
590 GST_DEBUG_PAD_NAME (pad), data);
593 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
594 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
595 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
597 GST_OBJECT_UNLOCK (tee);
599 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
603 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
608 if (pad == tee->pull_pad) {
609 /* don't push on the pad we're pulling from */
611 } else if (is_list) {
613 gst_pad_push_list (pad,
614 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
616 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
622 clear_pads (GstPad * pad, GstTee * tee)
624 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
625 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
629 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
633 GstFlowReturn ret, cret;
635 if (G_UNLIKELY (!tee->silent))
636 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
638 GST_OBJECT_LOCK (tee);
639 pads = GST_ELEMENT_CAST (tee)->srcpads;
641 /* special case for zero pads */
642 if (G_UNLIKELY (!pads))
645 /* special case for just one pad that avoids reffing the buffer */
647 GstPad *pad = GST_PAD_CAST (pads->data);
649 /* Keep another ref around, a pad probe
650 * might release and destroy the pad */
651 gst_object_ref (pad);
652 GST_OBJECT_UNLOCK (tee);
654 if (pad == tee->pull_pad) {
656 } else if (is_list) {
657 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
659 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
662 gst_object_unref (pad);
664 if (ret == GST_FLOW_NOT_LINKED && tee->allow_not_linked) {
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);
707 /* already pushed, use previous return value */
708 ret = GST_TEE_PAD_CAST (pad)->result;
709 GST_LOG_OBJECT (pad, "pad already pushed with %s",
710 gst_flow_get_name (ret));
713 /* before we go combining the return value, check if the pad list is still
714 * the same. It could be possible that the pad we just pushed was removed
715 * and the return value it not valid anymore */
716 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
717 GST_LOG_OBJECT (pad, "pad list changed");
718 /* the list of pads changed, restart iteration. Pads that we already
719 * pushed on and are still in the new list, will not be pushed on
724 /* stop pushing more buffers when we have a fatal error */
725 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
728 /* keep all other return values, overwriting the previous one. */
729 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
730 GST_LOG_OBJECT (pad, "Replacing ret val %d with %d", cret, ret);
733 pads = g_list_next (pads);
735 GST_OBJECT_UNLOCK (tee);
737 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
739 /* no need to unset gvalue */
745 if (tee->allow_not_linked) {
746 GST_DEBUG_OBJECT (tee, "there are no pads, dropping %s",
747 is_list ? "buffer-list" : "buffer");
750 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
751 ret = GST_FLOW_NOT_LINKED;
757 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
762 GST_OBJECT_UNLOCK (tee);
763 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
769 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
774 tee = GST_TEE_CAST (parent);
776 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
778 res = gst_tee_handle_data (tee, buffer, FALSE);
780 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
786 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
791 tee = GST_TEE_CAST (parent);
793 GST_DEBUG_OBJECT (tee, "received list %p", list);
795 res = gst_tee_handle_data (tee, list, TRUE);
797 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
803 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
809 tee = GST_TEE (parent);
812 case GST_PAD_MODE_PUSH:
814 GST_OBJECT_LOCK (tee);
815 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
817 if (active && !tee->has_chain)
819 GST_OBJECT_UNLOCK (tee);
832 GST_OBJECT_UNLOCK (tee);
833 GST_INFO_OBJECT (tee,
834 "Tee cannot operate in push mode with has-chain==FALSE");
840 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
847 tee = GST_TEE (parent);
850 case GST_PAD_MODE_PULL:
852 GST_OBJECT_LOCK (tee);
854 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
857 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
858 goto cannot_pull_multiple_srcs;
860 sinkpad = gst_object_ref (tee->sinkpad);
862 GST_OBJECT_UNLOCK (tee);
864 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
865 gst_object_unref (sinkpad);
868 goto sink_activate_failed;
870 GST_OBJECT_LOCK (tee);
872 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
875 if (pad == tee->pull_pad)
876 tee->pull_pad = NULL;
878 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
879 GST_OBJECT_UNLOCK (tee);
892 GST_OBJECT_UNLOCK (tee);
893 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
897 cannot_pull_multiple_srcs:
899 GST_OBJECT_UNLOCK (tee);
900 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
901 "pull-mode set to SINGLE");
904 sink_activate_failed:
906 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
913 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
919 tee = GST_TEE (parent);
921 switch (GST_QUERY_TYPE (query)) {
922 case GST_QUERY_SCHEDULING:
926 GST_OBJECT_LOCK (tee);
928 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
929 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
932 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
933 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
934 "pull-mode set to SINGLE");
938 sinkpad = gst_object_ref (tee->sinkpad);
939 GST_OBJECT_UNLOCK (tee);
942 /* ask peer if we can operate in pull mode */
943 res = gst_pad_peer_query (sinkpad, query);
947 gst_object_unref (sinkpad);
951 res = gst_pad_query_default (pad, parent, query);
959 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
961 GstPad *pad = g_value_get_object (vpad);
963 if (pad != tee->pull_pad)
964 gst_pad_push_event (pad, gst_event_new_eos ());
968 gst_tee_pull_eos (GstTee * tee)
972 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
973 gst_iterator_foreach (iter, (GstIteratorForeachFunction) gst_tee_push_eos,
975 gst_iterator_free (iter);
979 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
980 guint length, GstBuffer ** buf)
985 tee = GST_TEE (parent);
987 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
989 if (ret == GST_FLOW_OK)
990 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
991 else if (ret == GST_FLOW_EOS)
992 gst_tee_pull_eos (tee);