2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 /* #define DEBUG_ENABLED */
24 /* #define STATUS_ENABLED */
27 #define STATUS(A) GST_DEBUG(GST_CAT_DATAFLOW, A, GST_ELEMENT_NAME(queue))
34 #include "gst_private.h"
37 #include "gstscheduler.h"
41 GstElementDetails gst_queue_details = {
47 "Erik Walthinsen <omega@cse.ogi.edu>",
52 /* Queue signals and args */
75 static void gst_queue_class_init (GstQueueClass *klass);
76 static void gst_queue_init (GstQueue *queue);
77 static void gst_queue_dispose (GObject *object);
79 static void gst_queue_set_property (GObject *object, guint prop_id,
80 const GValue *value, GParamSpec *pspec);
81 static void gst_queue_get_property (GObject *object, guint prop_id,
82 GValue *value, GParamSpec *pspec);
84 static void gst_queue_chain (GstPad *pad, GstBuffer *buf);
85 static GstBuffer * gst_queue_get (GstPad *pad);
86 static GstBufferPool* gst_queue_get_bufferpool (GstPad *pad);
88 static gboolean gst_queue_handle_src_event (GstPad *pad, GstEvent *event);
91 static void gst_queue_locked_flush (GstQueue *queue);
93 static GstElementStateReturn gst_queue_change_state (GstElement *element);
94 static gboolean gst_queue_release_locks (GstElement *element);
97 #define GST_TYPE_QUEUE_LEAKY (queue_leaky_get_type())
99 queue_leaky_get_type(void) {
100 static GType queue_leaky_type = 0;
101 static GEnumValue queue_leaky[] = {
102 { GST_QUEUE_NO_LEAK, "0", "Not Leaky" },
103 { GST_QUEUE_LEAK_UPSTREAM, "1", "Leaky on Upstream" },
104 { GST_QUEUE_LEAK_DOWNSTREAM, "2", "Leaky on Downstream" },
107 if (!queue_leaky_type) {
108 queue_leaky_type = g_enum_register_static("GstQueueLeaky", queue_leaky);
110 return queue_leaky_type;
113 static GstElementClass *parent_class = NULL;
114 /* static guint gst_queue_signals[LAST_SIGNAL] = { 0 }; */
117 gst_queue_get_type(void)
119 static GType queue_type = 0;
122 static const GTypeInfo queue_info = {
123 sizeof(GstQueueClass),
126 (GClassInitFunc)gst_queue_class_init,
131 (GInstanceInitFunc)gst_queue_init,
134 queue_type = g_type_register_static (GST_TYPE_ELEMENT, "GstQueue", &queue_info, 0);
140 gst_queue_class_init (GstQueueClass *klass)
142 GObjectClass *gobject_class;
143 GstElementClass *gstelement_class;
145 gobject_class = (GObjectClass*)klass;
146 gstelement_class = (GstElementClass*)klass;
148 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
150 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LEAKY,
151 g_param_spec_enum ("leaky", "Leaky", "Where the queue leaks, if at all.",
152 GST_TYPE_QUEUE_LEAKY, GST_QUEUE_NO_LEAK, G_PARAM_READWRITE));
153 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LEVEL,
154 g_param_spec_int ("level", "Level", "How many buffers are in the queue.",
155 0, G_MAXINT, 0, G_PARAM_READABLE));
156 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_LEVEL,
157 g_param_spec_int ("max_level", "Maximum Level", "How many buffers the queue holds.",
158 0, G_MAXINT, 100, G_PARAM_READWRITE));
159 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAY_DEADLOCK,
160 g_param_spec_boolean ("may_deadlock", "May Deadlock", "The queue may deadlock if it's full and not PLAYING",
161 TRUE, G_PARAM_READWRITE));
162 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLOCK_TIMEOUT,
163 g_param_spec_int ("block_timeout", "Timeout for Block",
164 "Microseconds until blocked queue times out and returns filler event. "
165 "Value of -1 disables timeout",
166 -1, G_MAXINT, -1, G_PARAM_READWRITE));
168 gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_queue_dispose);
169 gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_queue_set_property);
170 gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_queue_get_property);
172 gstelement_class->change_state = GST_DEBUG_FUNCPTR(gst_queue_change_state);
173 gstelement_class->release_locks = GST_DEBUG_FUNCPTR(gst_queue_release_locks);
176 static GstPadLinkReturn
177 gst_queue_link (GstPad *pad, GstCaps *caps)
179 GstQueue *queue = GST_QUEUE (gst_pad_get_parent (pad));
182 if (pad == queue->srcpad)
183 otherpad = queue->sinkpad;
185 otherpad = queue->srcpad;
187 return gst_pad_proxy_link (otherpad, caps);
191 gst_queue_getcaps (GstPad *pad, GstCaps *caps)
193 GstQueue *queue = GST_QUEUE (gst_pad_get_parent (pad));
196 if (pad == queue->srcpad)
197 otherpad = GST_PAD_PEER (queue->sinkpad);
199 otherpad = GST_PAD_PEER (queue->srcpad);
202 return gst_pad_get_caps (otherpad);
208 gst_queue_init (GstQueue *queue)
210 /* scheduling on this kind of element is, well, interesting */
211 GST_FLAG_SET (queue, GST_ELEMENT_DECOUPLED);
212 GST_FLAG_SET (queue, GST_ELEMENT_EVENT_AWARE);
214 queue->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
215 gst_pad_set_chain_function (queue->sinkpad, GST_DEBUG_FUNCPTR (gst_queue_chain));
216 gst_element_add_pad (GST_ELEMENT (queue), queue->sinkpad);
217 gst_pad_set_bufferpool_function (queue->sinkpad, GST_DEBUG_FUNCPTR (gst_queue_get_bufferpool));
218 gst_pad_set_link_function (queue->sinkpad, GST_DEBUG_FUNCPTR (gst_queue_link));
219 gst_pad_set_getcaps_function (queue->sinkpad, GST_DEBUG_FUNCPTR (gst_queue_getcaps));
221 queue->srcpad = gst_pad_new ("src", GST_PAD_SRC);
222 gst_pad_set_get_function (queue->srcpad, GST_DEBUG_FUNCPTR (gst_queue_get));
223 gst_element_add_pad (GST_ELEMENT (queue), queue->srcpad);
224 gst_pad_set_link_function (queue->srcpad, GST_DEBUG_FUNCPTR (gst_queue_link));
225 gst_pad_set_getcaps_function (queue->srcpad, GST_DEBUG_FUNCPTR (gst_queue_getcaps));
226 gst_pad_set_event_function (queue->srcpad, GST_DEBUG_FUNCPTR (gst_queue_handle_src_event));
228 queue->leaky = GST_QUEUE_NO_LEAK;
230 queue->level_buffers = 0;
231 queue->level_bytes = 0;
232 queue->level_time = G_GINT64_CONSTANT (0);
233 queue->size_buffers = 100; /* 100 buffers */
234 queue->size_bytes = 100 * 1024; /* 100KB */
235 queue->size_time = G_GINT64_CONSTANT (1000000000); /* 1sec */
236 queue->may_deadlock = TRUE;
237 queue->block_timeout = -1;
238 queue->interrupt = FALSE;
239 queue->flush = FALSE;
241 queue->qlock = g_mutex_new ();
242 queue->not_empty = g_cond_new ();
243 queue->not_full = g_cond_new ();
244 queue->events = g_async_queue_new();
245 queue->queue = g_queue_new ();
246 GST_DEBUG_ELEMENT (GST_CAT_THREAD, queue, "initialized queue's not_empty & not_full conditions");
250 gst_queue_dispose (GObject *object)
252 GstQueue *queue = GST_QUEUE (object);
254 gst_queue_locked_flush (queue);
256 g_mutex_free (queue->qlock);
257 g_cond_free (queue->not_empty);
258 g_cond_free (queue->not_full);
259 g_queue_free (queue->queue);
261 g_async_queue_unref(queue->events);
263 G_OBJECT_CLASS (parent_class)->dispose (object);
266 static GstBufferPool*
267 gst_queue_get_bufferpool (GstPad *pad)
271 queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
273 return gst_pad_get_bufferpool (queue->srcpad);
277 gst_queue_cleanup_data (gpointer data, const gpointer user_data)
279 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, user_data, "cleaning buffer %p", data);
281 gst_data_unref (GST_DATA (data));
285 gst_queue_locked_flush (GstQueue *queue)
289 while ((data = g_queue_pop_head (queue->queue))) {
290 gst_queue_cleanup_data (data, (gpointer) queue);
292 queue->timeval = NULL;
293 queue->level_buffers = 0;
294 queue->level_bytes = 0;
295 queue->level_time = G_GINT64_CONSTANT (0);
296 /* make sure any pending buffers to be added are flushed too */
298 /* signal not_full, since we apparently aren't full anymore */
299 g_cond_signal (queue->not_full);
303 gst_queue_chain (GstPad *pad, GstBuffer *buf)
307 g_return_if_fail (pad != NULL);
308 g_return_if_fail (GST_IS_PAD (pad));
309 g_return_if_fail (buf != NULL);
311 queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
313 /* check for events to send upstream */
314 g_async_queue_lock(queue->events);
315 while (g_async_queue_length_unlocked(queue->events) > 0){
316 GstEvent *event = (GstEvent*)g_async_queue_pop_unlocked(queue->events);
317 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "sending event upstream\n");
318 gst_pad_event_default (pad, event);
319 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "event sent\n");
321 g_async_queue_unlock(queue->events);
324 /* we have to lock the queue since we span threads */
325 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locking t:%p", g_thread_self ());
326 g_mutex_lock (queue->qlock);
327 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locked t:%p", g_thread_self ());
329 /* assume don't need to flush this buffer when the queue is filled */
330 queue->flush = FALSE;
332 if (GST_IS_EVENT (buf)) {
333 switch (GST_EVENT_TYPE (buf)) {
334 case GST_EVENT_FLUSH:
335 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
336 gst_queue_locked_flush (queue);
339 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "eos in on %s %d\n",
340 GST_ELEMENT_NAME (queue), queue->level_buffers);
343 /* we put the event in the queue, we don't have to act ourselves */
348 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "adding buffer %p of size %d",buf,GST_BUFFER_SIZE(buf));
350 if (queue->level_buffers == queue->size_buffers) {
351 /* if this is a leaky queue... */
353 /* FIXME don't want to leak events! */
354 /* if we leak on the upstream side, drop the current buffer */
355 if (queue->leaky == GST_QUEUE_LEAK_UPSTREAM) {
356 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "queue is full, leaking buffer on upstream end");
357 if (GST_IS_EVENT (buf))
358 fprintf(stderr, "Error: queue [%s] leaked an event, type:%d\n",
359 GST_ELEMENT_NAME(GST_ELEMENT(queue)),
360 GST_EVENT_TYPE(GST_EVENT(buf)));
361 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "queue is full, leaking buffer on upstream end");
362 /* now we have to clean up and exit right away */
363 g_mutex_unlock (queue->qlock);
366 /* otherwise we have to push a buffer off the other end */
371 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "queue is full, leaking buffer on downstream end");
373 front = g_queue_pop_head (queue->queue);
374 leakbuf = (GstBuffer *)(front);
376 if (GST_IS_EVENT (leakbuf)) {
377 fprintf(stderr, "Error: queue [%s] leaked an event, type:%d\n",
378 GST_ELEMENT_NAME(GST_ELEMENT(queue)),
379 GST_EVENT_TYPE(GST_EVENT(leakbuf)));
381 queue->level_buffers--;
382 queue->level_bytes -= GST_BUFFER_SIZE(leakbuf);
383 gst_data_unref (GST_DATA (leakbuf));
387 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "pre full wait, level:%d/%d",
388 queue->level_buffers, queue->size_buffers);
390 while (queue->level_buffers == queue->size_buffers) {
391 /* if there's a pending state change for this queue or its manager, switch */
392 /* back to iterator so bottom half of state change executes */
393 if (queue->interrupt) {
394 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "interrupted!!");
395 g_mutex_unlock (queue->qlock);
396 if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->sinkpad), GST_ELEMENT (queue)))
398 /* if we got here bacause we were unlocked after a flush, we don't need
399 * to add the buffer to the queue again */
401 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "not adding pending buffer after flush");
404 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "adding pending buffer after interrupt");
407 if (GST_STATE (queue) != GST_STATE_PLAYING) {
408 /* this means the other end is shut down */
409 /* try to signal to resolve the error */
410 if (!queue->may_deadlock) {
411 g_mutex_unlock (queue->qlock);
412 gst_data_unref (GST_DATA (buf));
413 gst_element_error (GST_ELEMENT (queue), "deadlock found, source pad elements are shut down");
414 /* we don't want to goto out_unref here, since we want to clean up before calling gst_element_error */
418 g_print ("%s: waiting for the app to restart source pad elements\n", GST_ELEMENT_NAME (queue));
422 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "waiting for not_full, level:%d/%d",
423 queue->level_buffers, queue->size_buffers);
424 g_cond_wait (queue->not_full, queue->qlock);
425 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "got not_full signal");
427 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "post full wait, level:%d/%d",
428 queue->level_buffers, queue->size_buffers);
431 /* put the buffer on the tail of the list */
432 g_queue_push_tail (queue->queue, buf);
434 queue->level_buffers++;
435 queue->level_bytes += GST_BUFFER_SIZE(buf);
437 /* this assertion _has_ to hold */
438 g_assert (queue->queue->length == queue->level_buffers);
440 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "(%s:%s)+ level:%d/%d",
441 GST_DEBUG_PAD_NAME(pad),
442 queue->level_buffers, queue->size_buffers);
444 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "signalling not_empty");
445 g_cond_signal (queue->not_empty);
446 g_mutex_unlock (queue->qlock);
451 gst_data_unref (GST_DATA (buf));
456 gst_queue_get (GstPad *pad)
459 GstBuffer *buf = NULL;
462 g_assert(pad != NULL);
463 g_assert(GST_IS_PAD(pad));
464 g_return_val_if_fail (pad != NULL, NULL);
465 g_return_val_if_fail (GST_IS_PAD (pad), NULL);
467 queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
470 /* have to lock for thread-safety */
471 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locking t:%p", g_thread_self ());
472 g_mutex_lock (queue->qlock);
473 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locked t:%p %p", g_thread_self (), queue->not_empty);
475 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "pre empty wait, level:%d/%d", queue->level_buffers, queue->size_buffers);
476 while (queue->level_buffers == 0) {
477 /* if there's a pending state change for this queue or its manager, switch
478 * back to iterator so bottom half of state change executes
480 //while (GST_STATE_PENDING (queue) != GST_STATE_VOID_PENDING) {
481 if (queue->interrupt) {
482 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "interrupted!!");
483 g_mutex_unlock (queue->qlock);
484 if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->srcpad), GST_ELEMENT (queue)))
485 return GST_BUFFER (gst_event_new (GST_EVENT_INTERRUPT));
488 if (GST_STATE (queue) != GST_STATE_PLAYING) {
489 /* this means the other end is shut down */
490 if (!queue->may_deadlock) {
491 g_mutex_unlock (queue->qlock);
492 gst_element_error (GST_ELEMENT (queue), "deadlock found, sink pad elements are shut down");
496 g_print ("%s: waiting for the app to restart source pad elements\n", GST_ELEMENT_NAME (queue));
500 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "waiting for not_empty, level:%d/%d", queue->level_buffers, queue->size_buffers);
502 /* if (queue->block_timeout > -1){ */
505 g_get_current_time(&timeout);
506 g_time_val_add(&timeout, queue->block_timeout);
507 if (!g_cond_timed_wait (queue->not_empty, queue->qlock, &timeout)){
508 g_mutex_unlock (queue->qlock);
509 g_warning ("filler");
510 return GST_BUFFER(gst_event_new_filler());
514 g_cond_wait (queue->not_empty, queue->qlock);
516 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "got not_empty signal");
518 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "post empty wait, level:%d/%d", queue->level_buffers, queue->size_buffers);
520 front = g_queue_pop_head (queue->queue);
521 buf = (GstBuffer *)(front);
522 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "retrieved buffer %p from queue", buf);
524 queue->level_buffers--;
525 queue->level_bytes -= GST_BUFFER_SIZE(buf);
527 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "(%s:%s)- level:%d/%d",
528 GST_DEBUG_PAD_NAME(pad),
529 queue->level_buffers, queue->size_buffers);
531 /* this assertion _has_ to hold */
532 g_assert (queue->queue->length == queue->level_buffers);
534 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "signalling not_full");
535 g_cond_signal (queue->not_full);
537 g_mutex_unlock (queue->qlock);
539 /* FIXME where should this be? locked? */
540 if (GST_IS_EVENT(buf)) {
541 GstEvent *event = GST_EVENT(buf);
542 switch (GST_EVENT_TYPE(event)) {
544 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "queue \"%s\" eos", GST_ELEMENT_NAME (queue));
545 gst_element_set_eos (GST_ELEMENT (queue));
557 gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
564 queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
566 g_mutex_lock (queue->qlock);
568 if (gst_element_get_state (GST_ELEMENT (queue)) == GST_STATE_PLAYING) {
569 /* push the event to the queue for upstream consumption */
570 g_async_queue_push(queue->events, event);
571 g_warning ("FIXME: sending event in a running queue");
572 /* FIXME wait for delivery of the event here, then return the result
573 * instead of FALSE */
578 event_type = GST_EVENT_TYPE (event);
579 if (event_type == GST_EVENT_SEEK)
580 flag_flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
582 res = gst_pad_event_default (pad, event);
584 switch (event_type) {
585 case GST_EVENT_FLUSH:
586 GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
587 gst_queue_locked_flush (queue);
591 gst_queue_locked_flush (queue);
598 g_mutex_unlock (queue->qlock);
600 /* we have to claim success, but we don't really know */
605 gst_queue_release_locks (GstElement *element)
609 queue = GST_QUEUE (element);
611 g_mutex_lock (queue->qlock);
612 queue->interrupt = TRUE;
613 g_cond_signal (queue->not_full);
614 g_cond_signal (queue->not_empty);
615 g_mutex_unlock (queue->qlock);
620 static GstElementStateReturn
621 gst_queue_change_state (GstElement *element)
624 GstElementStateReturn ret;
626 queue = GST_QUEUE (element);
628 GST_DEBUG_ENTER("('%s')", GST_ELEMENT_NAME (element));
630 /* lock the queue so another thread (not in sync with this thread's state)
631 * can't call this queue's _get (or whatever)
633 g_mutex_lock (queue->qlock);
635 switch (GST_STATE_TRANSITION (element)) {
636 case GST_STATE_NULL_TO_READY:
637 gst_queue_locked_flush (queue);
639 case GST_STATE_READY_TO_PAUSED:
641 case GST_STATE_PAUSED_TO_PLAYING:
642 if (!GST_PAD_IS_LINKED (queue->sinkpad)) {
643 GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s is not linked", GST_ELEMENT_NAME (queue));
644 /* FIXME can this be? */
645 g_cond_signal (queue->not_empty);
647 ret = GST_STATE_FAILURE;
651 GstScheduler *src_sched, *sink_sched;
653 src_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->srcpad));
654 sink_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->sinkpad));
656 if (src_sched == sink_sched) {
657 GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s does not connect different schedulers",
658 GST_ELEMENT_NAME (queue));
660 g_warning ("queue %s does not connect different schedulers",
661 GST_ELEMENT_NAME (queue));
663 ret = GST_STATE_FAILURE;
667 queue->interrupt = FALSE;
669 case GST_STATE_PLAYING_TO_PAUSED:
671 case GST_STATE_PAUSED_TO_READY:
672 gst_queue_locked_flush (queue);
674 case GST_STATE_READY_TO_NULL:
678 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
681 g_mutex_unlock (queue->qlock);
683 GST_DEBUG_LEAVE("('%s')", GST_ELEMENT_NAME (element));
689 gst_queue_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
693 /* it's not null if we got it, but it might not be ours */
694 g_return_if_fail (GST_IS_QUEUE (object));
696 queue = GST_QUEUE (object);
700 queue->leaky = g_value_get_enum (value);
703 queue->size_buffers = g_value_get_int (value);
705 case ARG_MAY_DEADLOCK:
706 queue->may_deadlock = g_value_get_boolean (value);
708 case ARG_BLOCK_TIMEOUT:
709 queue->block_timeout = g_value_get_int (value);
712 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
718 gst_queue_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
722 /* it's not null if we got it, but it might not be ours */
723 g_return_if_fail (GST_IS_QUEUE (object));
725 queue = GST_QUEUE (object);
729 g_value_set_enum (value, queue->leaky);
732 g_value_set_int (value, queue->level_buffers);
735 g_value_set_int (value, queue->size_buffers);
737 case ARG_MAY_DEADLOCK:
738 g_value_set_boolean (value, queue->may_deadlock);
740 case ARG_BLOCK_TIMEOUT:
741 g_value_set_int (value, queue->block_timeout);
744 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);