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.
27 * @see_also: #GstIdentity
29 * Split data to multiple pads. Branching the data flow is useful when e.g.
30 * capturing a video where the video is shown on the screen and also encoded and
31 * written to a file. Another example is playing music and hooking up a
32 * visualisation module.
34 * One needs to use separate queue elements (or a multiqueue) in each branch to
35 * provide separate threads for each branch. Otherwise a blocked dataflow in one
36 * branch would stall the other branches.
38 * ## Example launch line
40 * gst-launch-1.0 filesrc location=song.ogg ! decodebin ! tee name=t ! queue ! audioconvert ! audioresample ! autoaudiosink t. ! queue ! audioconvert ! goom ! videoconvert ! autovideosink
43 * Play song.ogg audio file which must be in the current working directory
44 * and render visualisations using the goom element (this can be easier done
45 * using the playbin element, this is just an example pipeline).
53 #include "gst/glib-compat-private.h"
58 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
63 GST_DEBUG_CATEGORY_STATIC (gst_tee_debug);
64 #define GST_CAT_DEFAULT gst_tee_debug
66 #define GST_TYPE_TEE_PULL_MODE (gst_tee_pull_mode_get_type())
68 gst_tee_pull_mode_get_type (void)
70 static GType type = 0;
71 static const GEnumValue data[] = {
72 {GST_TEE_PULL_MODE_NEVER, "Never activate in pull mode", "never"},
73 {GST_TEE_PULL_MODE_SINGLE, "Only one src pad can be active in pull mode",
79 type = g_enum_register_static ("GstTeePullMode", data);
84 #define DEFAULT_PROP_NUM_SRC_PADS 0
85 #define DEFAULT_PROP_HAS_CHAIN TRUE
86 #define DEFAULT_PROP_SILENT TRUE
87 #define DEFAULT_PROP_LAST_MESSAGE NULL
88 #define DEFAULT_PULL_MODE GST_TEE_PULL_MODE_NEVER
89 #define DEFAULT_PROP_ALLOW_NOT_LINKED FALSE
100 PROP_ALLOW_NOT_LINKED,
103 static GstStaticPadTemplate src_template = 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;
140 GstFlowReturn result;
144 struct _GstTeePadClass
149 G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
152 gst_tee_pad_class_init (GstTeePadClass * klass)
157 gst_tee_pad_reset (GstTeePad * pad)
160 pad->result = GST_FLOW_NOT_LINKED;
161 pad->removed = FALSE;
165 gst_tee_pad_init (GstTeePad * pad)
167 gst_tee_pad_reset (pad);
170 static GstPad *gst_tee_request_new_pad (GstElement * element,
171 GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
172 static void gst_tee_release_pad (GstElement * element, GstPad * pad);
174 static void gst_tee_finalize (GObject * object);
175 static void gst_tee_set_property (GObject * object, guint prop_id,
176 const GValue * value, GParamSpec * pspec);
177 static void gst_tee_get_property (GObject * object, guint prop_id,
178 GValue * value, GParamSpec * pspec);
179 static void gst_tee_dispose (GObject * object);
181 static GstFlowReturn gst_tee_chain (GstPad * pad, GstObject * parent,
183 static GstFlowReturn gst_tee_chain_list (GstPad * pad, GstObject * parent,
184 GstBufferList * list);
185 static gboolean gst_tee_sink_event (GstPad * pad, GstObject * parent,
187 static gboolean gst_tee_sink_query (GstPad * pad, GstObject * parent,
189 static gboolean gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent,
190 GstPadMode mode, gboolean active);
191 static gboolean gst_tee_src_query (GstPad * pad, GstObject * parent,
193 static gboolean gst_tee_src_activate_mode (GstPad * pad, GstObject * parent,
194 GstPadMode mode, gboolean active);
195 static GstFlowReturn gst_tee_src_get_range (GstPad * pad, GstObject * parent,
196 guint64 offset, guint length, GstBuffer ** buf);
199 gst_tee_dispose (GObject * object)
204 for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
205 GstPad *pad = GST_PAD (item->data);
206 if (GST_PAD_IS_SRC (pad)) {
207 gst_element_release_request_pad (GST_ELEMENT (object), pad);
212 G_OBJECT_CLASS (parent_class)->dispose (object);
216 gst_tee_finalize (GObject * object)
220 tee = GST_TEE (object);
222 g_hash_table_unref (tee->pad_indexes);
224 g_free (tee->last_message);
226 G_OBJECT_CLASS (parent_class)->finalize (object);
230 gst_tee_class_init (GstTeeClass * klass)
232 GObjectClass *gobject_class;
233 GstElementClass *gstelement_class;
235 gobject_class = G_OBJECT_CLASS (klass);
236 gstelement_class = GST_ELEMENT_CLASS (klass);
238 gobject_class->finalize = gst_tee_finalize;
239 gobject_class->set_property = gst_tee_set_property;
240 gobject_class->get_property = gst_tee_get_property;
241 gobject_class->dispose = gst_tee_dispose;
243 g_object_class_install_property (gobject_class, PROP_NUM_SRC_PADS,
244 g_param_spec_int ("num-src-pads", "Num Src Pads",
245 "The number of source pads", 0, G_MAXINT, DEFAULT_PROP_NUM_SRC_PADS,
246 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
247 g_object_class_install_property (gobject_class, PROP_HAS_CHAIN,
248 g_param_spec_boolean ("has-chain", "Has Chain",
249 "If the element can operate in push mode", DEFAULT_PROP_HAS_CHAIN,
250 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
251 g_object_class_install_property (gobject_class, PROP_SILENT,
252 g_param_spec_boolean ("silent", "Silent",
253 "Don't produce last_message events", DEFAULT_PROP_SILENT,
254 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
255 pspec_last_message = g_param_spec_string ("last-message", "Last Message",
256 "The message describing current status", DEFAULT_PROP_LAST_MESSAGE,
257 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
258 g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE,
260 g_object_class_install_property (gobject_class, PROP_PULL_MODE,
261 g_param_spec_enum ("pull-mode", "Pull mode",
262 "Behavior of tee in pull mode", GST_TYPE_TEE_PULL_MODE,
264 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
265 pspec_alloc_pad = g_param_spec_object ("alloc-pad", "Allocation Src Pad",
266 "The pad ALLOCATION queries will be proxied to (unused)", GST_TYPE_PAD,
267 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
268 g_object_class_install_property (gobject_class, PROP_ALLOC_PAD,
272 * GstTee:allow-not-linked
274 * This property makes sink pad return GST_FLOW_OK even if there are no
275 * source pads or any of them is linked.
277 * This is useful to avoid errors when you have a dynamic pipeline and during
278 * a reconnection you can have all the pads unlinked or removed.
282 g_object_class_install_property (gobject_class, PROP_ALLOW_NOT_LINKED,
283 g_param_spec_boolean ("allow-not-linked", "Allow not linked",
284 "Return GST_FLOW_OK even if there are no source pads or they are "
285 "all unlinked", DEFAULT_PROP_ALLOW_NOT_LINKED,
286 G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
288 gst_element_class_set_static_metadata (gstelement_class,
291 "1-to-N pipe fitting",
292 "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>");
293 gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
294 gst_element_class_add_static_pad_template (gstelement_class, &src_template);
296 gstelement_class->request_new_pad =
297 GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
298 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_tee_release_pad);
302 gst_tee_init (GstTee * tee)
304 tee->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
305 tee->sink_mode = GST_PAD_MODE_NONE;
307 gst_pad_set_event_function (tee->sinkpad,
308 GST_DEBUG_FUNCPTR (gst_tee_sink_event));
309 gst_pad_set_query_function (tee->sinkpad,
310 GST_DEBUG_FUNCPTR (gst_tee_sink_query));
311 gst_pad_set_activatemode_function (tee->sinkpad,
312 GST_DEBUG_FUNCPTR (gst_tee_sink_activate_mode));
313 gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
314 gst_pad_set_chain_list_function (tee->sinkpad,
315 GST_DEBUG_FUNCPTR (gst_tee_chain_list));
316 GST_OBJECT_FLAG_SET (tee->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
317 gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
319 tee->pad_indexes = g_hash_table_new (NULL, NULL);
321 tee->last_message = NULL;
325 gst_tee_notify_alloc_pad (GstTee * tee)
327 g_object_notify_by_pspec ((GObject *) tee, pspec_alloc_pad);
331 forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
333 GstPad *srcpad = GST_PAD_CAST (user_data);
336 ret = gst_pad_store_sticky_event (srcpad, *event);
337 if (ret != GST_FLOW_OK) {
338 GST_DEBUG_OBJECT (srcpad, "storing sticky event %p (%s) failed: %s", *event,
339 GST_EVENT_TYPE_NAME (*event), gst_flow_get_name (ret));
346 gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
347 const gchar * name_templ, const GstCaps * caps)
356 tee = GST_TEE (element);
358 GST_DEBUG_OBJECT (tee, "requesting pad");
360 GST_OBJECT_LOCK (tee);
362 if (name_templ && sscanf (name_templ, "src_%u", &index) == 1) {
363 GST_LOG_OBJECT (element, "name: %s (index %d)", name_templ, index);
364 if (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index))) {
365 GST_ERROR_OBJECT (element, "pad name %s is not unique", name_templ);
366 GST_OBJECT_UNLOCK (tee);
369 if (index >= tee->next_pad_index)
370 tee->next_pad_index = index + 1;
372 index = tee->next_pad_index;
374 while (g_hash_table_contains (tee->pad_indexes, GUINT_TO_POINTER (index)))
377 tee->next_pad_index = index + 1;
380 g_hash_table_insert (tee->pad_indexes, GUINT_TO_POINTER (index), NULL);
382 name = g_strdup_printf ("src_%u", index);
384 srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
385 "name", name, "direction", templ->direction, "template", templ,
387 GST_TEE_PAD_CAST (srcpad)->index = index;
390 mode = tee->sink_mode;
392 GST_OBJECT_UNLOCK (tee);
395 case GST_PAD_MODE_PULL:
396 /* we already have a src pad in pull mode, and our pull mode can only be
397 SINGLE, so fall through to activate this new pad in push mode */
398 case GST_PAD_MODE_PUSH:
399 res = gst_pad_activate_mode (srcpad, GST_PAD_MODE_PUSH, TRUE);
407 goto activate_failed;
409 gst_pad_set_activatemode_function (srcpad,
410 GST_DEBUG_FUNCPTR (gst_tee_src_activate_mode));
411 gst_pad_set_query_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_query));
412 gst_pad_set_getrange_function (srcpad,
413 GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
414 GST_OBJECT_FLAG_SET (srcpad, GST_PAD_FLAG_PROXY_CAPS);
415 /* Forward sticky events to the new srcpad */
416 gst_pad_sticky_events_foreach (tee->sinkpad, forward_sticky_events, srcpad);
417 gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
424 gboolean changed = FALSE;
426 GST_OBJECT_LOCK (tee);
427 GST_DEBUG_OBJECT (tee, "warning failed to activate request pad");
428 if (tee->allocpad == srcpad) {
429 tee->allocpad = NULL;
432 GST_OBJECT_UNLOCK (tee);
433 gst_object_unref (srcpad);
435 gst_tee_notify_alloc_pad (tee);
442 gst_tee_release_pad (GstElement * element, GstPad * pad)
445 gboolean changed = FALSE;
448 tee = GST_TEE (element);
450 GST_DEBUG_OBJECT (tee, "releasing pad");
452 GST_OBJECT_LOCK (tee);
453 index = GST_TEE_PAD_CAST (pad)->index;
454 /* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
455 GST_TEE_PAD_CAST (pad)->removed = TRUE;
456 if (tee->allocpad == pad) {
457 tee->allocpad = NULL;
460 GST_OBJECT_UNLOCK (tee);
462 gst_object_ref (pad);
463 gst_element_remove_pad (GST_ELEMENT_CAST (tee), pad);
465 gst_pad_set_active (pad, FALSE);
467 gst_object_unref (pad);
470 gst_tee_notify_alloc_pad (tee);
473 GST_OBJECT_LOCK (tee);
474 g_hash_table_remove (tee->pad_indexes, GUINT_TO_POINTER (index));
475 GST_OBJECT_UNLOCK (tee);
479 gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
482 GstTee *tee = GST_TEE (object);
484 GST_OBJECT_LOCK (tee);
487 tee->has_chain = g_value_get_boolean (value);
490 tee->silent = g_value_get_boolean (value);
493 tee->pull_mode = (GstTeePullMode) g_value_get_enum (value);
497 GstPad *pad = g_value_get_object (value);
498 GST_OBJECT_LOCK (pad);
499 if (GST_OBJECT_PARENT (pad) == GST_OBJECT_CAST (object))
502 GST_WARNING_OBJECT (object, "Tried to set alloc pad %s which"
503 " is not my pad", GST_OBJECT_NAME (pad));
504 GST_OBJECT_UNLOCK (pad);
507 case PROP_ALLOW_NOT_LINKED:
508 tee->allow_not_linked = g_value_get_boolean (value);
511 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
514 GST_OBJECT_UNLOCK (tee);
518 gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
521 GstTee *tee = GST_TEE (object);
523 GST_OBJECT_LOCK (tee);
525 case PROP_NUM_SRC_PADS:
526 g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
529 g_value_set_boolean (value, tee->has_chain);
532 g_value_set_boolean (value, tee->silent);
534 case PROP_LAST_MESSAGE:
535 g_value_set_string (value, tee->last_message);
538 g_value_set_enum (value, tee->pull_mode);
541 g_value_set_object (value, tee->allocpad);
543 case PROP_ALLOW_NOT_LINKED:
544 g_value_set_boolean (value, tee->allow_not_linked);
547 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
550 GST_OBJECT_UNLOCK (tee);
554 gst_tee_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
558 switch (GST_EVENT_TYPE (event)) {
560 res = gst_pad_event_default (pad, parent, event);
568 gst_tee_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
572 switch (GST_QUERY_TYPE (query)) {
574 res = gst_pad_query_default (pad, parent, query);
581 gst_tee_do_message (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
583 GST_OBJECT_LOCK (tee);
584 g_free (tee->last_message);
587 g_strdup_printf ("chain-list ******* (%s:%s)t %p",
588 GST_DEBUG_PAD_NAME (pad), data);
591 g_strdup_printf ("chain ******* (%s:%s)t (%" G_GSIZE_FORMAT
592 " bytes, %" G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
593 gst_buffer_get_size (data), GST_BUFFER_TIMESTAMP (data), data);
595 GST_OBJECT_UNLOCK (tee);
597 g_object_notify_by_pspec ((GObject *) tee, pspec_last_message);
601 gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
606 if (pad == tee->pull_pad) {
607 /* don't push on the pad we're pulling from */
609 } else if (is_list) {
611 gst_pad_push_list (pad,
612 gst_buffer_list_ref (GST_BUFFER_LIST_CAST (data)));
614 res = gst_pad_push (pad, gst_buffer_ref (GST_BUFFER_CAST (data)));
620 clear_pads (GstPad * pad, GstTee * tee)
622 GST_TEE_PAD_CAST (pad)->pushed = FALSE;
623 GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
627 gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
631 GstFlowReturn ret, cret;
633 if (G_UNLIKELY (!tee->silent))
634 gst_tee_do_message (tee, tee->sinkpad, data, is_list);
636 GST_OBJECT_LOCK (tee);
637 pads = GST_ELEMENT_CAST (tee)->srcpads;
639 /* special case for zero pads */
640 if (G_UNLIKELY (!pads))
643 /* special case for just one pad that avoids reffing the buffer */
645 GstPad *pad = GST_PAD_CAST (pads->data);
647 /* Keep another ref around, a pad probe
648 * might release and destroy the pad */
649 gst_object_ref (pad);
650 GST_OBJECT_UNLOCK (tee);
652 if (pad == tee->pull_pad) {
654 } else if (is_list) {
655 ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
657 ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
660 if (GST_TEE_PAD_CAST (pad)->removed)
661 ret = GST_FLOW_NOT_LINKED;
663 if (ret == GST_FLOW_NOT_LINKED && tee->allow_not_linked) {
667 gst_object_unref (pad);
672 /* mark all pads as 'not pushed on yet' */
673 g_list_foreach (pads, (GFunc) clear_pads, tee);
676 if (tee->allow_not_linked) {
679 cret = GST_FLOW_NOT_LINKED;
681 pads = GST_ELEMENT_CAST (tee)->srcpads;
682 cookie = GST_ELEMENT_CAST (tee)->pads_cookie;
687 pad = GST_PAD_CAST (pads->data);
689 if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
690 /* not yet pushed, release lock and start pushing */
691 gst_object_ref (pad);
692 GST_OBJECT_UNLOCK (tee);
694 GST_LOG_OBJECT (pad, "Starting to push %s %p",
695 is_list ? "list" : "buffer", data);
697 ret = gst_tee_do_push (tee, pad, data, is_list);
699 GST_LOG_OBJECT (pad, "Pushing item %p yielded result %s", data,
700 gst_flow_get_name (ret));
702 GST_OBJECT_LOCK (tee);
703 /* keep track of which pad we pushed and the result value */
704 GST_TEE_PAD_CAST (pad)->pushed = TRUE;
705 GST_TEE_PAD_CAST (pad)->result = ret;
706 gst_object_unref (pad);
709 /* already pushed, use previous return value */
710 ret = GST_TEE_PAD_CAST (pad)->result;
711 GST_LOG_OBJECT (pad, "pad already pushed with %s",
712 gst_flow_get_name (ret));
715 /* before we go combining the return value, check if the pad list is still
716 * the same. It could be possible that the pad we just pushed was removed
717 * and the return value it not valid anymore */
718 if (G_UNLIKELY (GST_ELEMENT_CAST (tee)->pads_cookie != cookie)) {
719 GST_LOG_OBJECT (tee, "pad list changed");
720 /* the list of pads changed, restart iteration. Pads that we already
721 * pushed on and are still in the new list, will not be pushed on
726 /* stop pushing more buffers when we have a fatal error */
727 if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED))
730 /* keep all other return values, overwriting the previous one. */
731 if (G_LIKELY (ret != GST_FLOW_NOT_LINKED)) {
732 GST_LOG_OBJECT (tee, "Replacing ret val %d with %d", cret, ret);
735 pads = g_list_next (pads);
737 GST_OBJECT_UNLOCK (tee);
739 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
741 /* no need to unset gvalue */
747 if (tee->allow_not_linked) {
748 GST_DEBUG_OBJECT (tee, "there are no pads, dropping %s",
749 is_list ? "buffer-list" : "buffer");
752 GST_DEBUG_OBJECT (tee, "there are no pads, return not-linked");
753 ret = GST_FLOW_NOT_LINKED;
759 GST_DEBUG_OBJECT (tee, "received error %s", gst_flow_get_name (ret));
764 GST_OBJECT_UNLOCK (tee);
765 gst_mini_object_unref (GST_MINI_OBJECT_CAST (data));
771 gst_tee_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
776 tee = GST_TEE_CAST (parent);
778 GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
780 res = gst_tee_handle_data (tee, buffer, FALSE);
782 GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
788 gst_tee_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
793 tee = GST_TEE_CAST (parent);
795 GST_DEBUG_OBJECT (tee, "received list %p", list);
797 res = gst_tee_handle_data (tee, list, TRUE);
799 GST_DEBUG_OBJECT (tee, "handled list %s", gst_flow_get_name (res));
805 gst_tee_sink_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
811 tee = GST_TEE (parent);
814 case GST_PAD_MODE_PUSH:
816 GST_OBJECT_LOCK (tee);
817 tee->sink_mode = active ? mode : GST_PAD_MODE_NONE;
819 if (active && !tee->has_chain)
821 GST_OBJECT_UNLOCK (tee);
834 GST_OBJECT_UNLOCK (tee);
835 GST_INFO_OBJECT (tee,
836 "Tee cannot operate in push mode with has-chain==FALSE");
842 gst_tee_src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
849 tee = GST_TEE (parent);
852 case GST_PAD_MODE_PULL:
854 GST_OBJECT_LOCK (tee);
856 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER)
859 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && active && tee->pull_pad)
860 goto cannot_pull_multiple_srcs;
862 sinkpad = gst_object_ref (tee->sinkpad);
864 GST_OBJECT_UNLOCK (tee);
866 res = gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, active);
867 gst_object_unref (sinkpad);
870 goto sink_activate_failed;
872 GST_OBJECT_LOCK (tee);
874 if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE)
877 if (pad == tee->pull_pad)
878 tee->pull_pad = NULL;
880 tee->sink_mode = (active ? GST_PAD_MODE_PULL : GST_PAD_MODE_NONE);
881 GST_OBJECT_UNLOCK (tee);
894 GST_OBJECT_UNLOCK (tee);
895 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
899 cannot_pull_multiple_srcs:
901 GST_OBJECT_UNLOCK (tee);
902 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
903 "pull-mode set to SINGLE");
906 sink_activate_failed:
908 GST_INFO_OBJECT (tee, "Failed to %sactivate sink pad in pull mode",
915 gst_tee_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
921 tee = GST_TEE (parent);
923 switch (GST_QUERY_TYPE (query)) {
924 case GST_QUERY_SCHEDULING:
928 GST_OBJECT_LOCK (tee);
930 if (tee->pull_mode == GST_TEE_PULL_MODE_NEVER) {
931 GST_INFO_OBJECT (tee, "Cannot activate in pull mode, pull-mode "
934 } else if (tee->pull_mode == GST_TEE_PULL_MODE_SINGLE && tee->pull_pad) {
935 GST_INFO_OBJECT (tee, "Cannot activate multiple src pads in pull mode, "
936 "pull-mode set to SINGLE");
940 sinkpad = gst_object_ref (tee->sinkpad);
941 GST_OBJECT_UNLOCK (tee);
944 /* ask peer if we can operate in pull mode */
945 res = gst_pad_peer_query (sinkpad, query);
949 gst_object_unref (sinkpad);
953 res = gst_pad_query_default (pad, parent, query);
961 gst_tee_push_eos (const GValue * vpad, GstTee * tee)
963 GstPad *pad = g_value_get_object (vpad);
965 if (pad != tee->pull_pad)
966 gst_pad_push_event (pad, gst_event_new_eos ());
970 gst_tee_pull_eos (GstTee * tee)
974 iter = gst_element_iterate_src_pads (GST_ELEMENT (tee));
975 while (gst_iterator_foreach (iter,
976 (GstIteratorForeachFunction) gst_tee_push_eos,
977 tee) == GST_ITERATOR_RESYNC)
978 gst_iterator_resync (iter);
979 gst_iterator_free (iter);
983 gst_tee_src_get_range (GstPad * pad, GstObject * parent, guint64 offset,
984 guint length, GstBuffer ** buf)
989 tee = GST_TEE (parent);
991 ret = gst_pad_pull_range (tee->sinkpad, offset, length, buf);
993 if (ret == GST_FLOW_OK)
994 ret = gst_tee_handle_data (tee, gst_buffer_ref (*buf), FALSE);
995 else if (ret == GST_FLOW_EOS)
996 gst_tee_pull_eos (tee);