2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2003 Colin Walters <cwalters@gnome.org>
4 * 2000,2005,2007 Wim Taymans <wim.taymans@gmail.com>
5 * 2007 Thiago Sousa Santos <thiagoss@lcc.ufcg.edu.br>
6 * SA 2010 ST-Ericsson <benjamin.gaignard@stericsson.com>
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Library General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Library General Public License for more details.
20 * You should have received a copy of the GNU Library General Public
21 * License along with this library; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 02111-1307, USA.
27 * SECTION:element-queue2
29 * Data is queued until one of the limits specified by the
30 * #GstQueue2:max-size-buffers, #GstQueue2:max-size-bytes and/or
31 * #GstQueue2:max-size-time properties has been reached. Any attempt to push
32 * more buffers into the queue will block the pushing thread until more space
35 * The queue will create a new thread on the source pad to decouple the
36 * processing on sink and source pad.
38 * You can query how many buffers are queued by reading the
39 * #GstQueue2:current-level-buffers property.
41 * The default queue size limits are 100 buffers, 2MB of data, or
42 * two seconds worth of data, whichever is reached first.
44 * If you set temp-tmpl to a value such as /tmp/gstreamer-XXXXXX, the element
45 * will allocate a random free filename and buffer data in the file.
46 * By using this, it will buffer the entire stream data on the file independently
47 * of the queue size limits, they will only be used for buffering statistics.
49 * Since 0.10.24, setting the temp-location property with a filename is deprecated
50 * because it's impossible to securely open a temporary file in this way. The
51 * property will still be used to notify the application of the allocated
54 * Last reviewed on 2009-07-10 (0.10.24)
61 #include "gstqueue2.h"
63 #include <glib/gstdio.h>
65 #include "gst/gst-i18n-lib.h"
70 #include <io.h> /* lseek, open, close, read */
72 #define lseek _lseeki64
79 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
84 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
89 GST_DEBUG_CATEGORY_STATIC (queue_debug);
90 #define GST_CAT_DEFAULT (queue_debug)
91 GST_DEBUG_CATEGORY_STATIC (queue_dataflow);
99 #define DEFAULT_BUFFER_SIZE 4096
100 #define QUEUE_IS_USING_TEMP_FILE(queue) ((queue)->temp_location_set || (queue)->temp_template != NULL)
101 #define QUEUE_IS_USING_RING_BUFFER(queue) ((queue)->ring_buffer_max_size != 0) /* for consistency with the above macro */
102 #define QUEUE_IS_USING_QUEUE(queue) (!QUEUE_IS_USING_TEMP_FILE(queue) && !QUEUE_IS_USING_RING_BUFFER (queue))
104 #define QUEUE_MAX_BYTES(queue) MIN((queue)->max_level.bytes, (queue)->ring_buffer_max_size)
106 /* default property values */
107 #define DEFAULT_MAX_SIZE_BUFFERS 100 /* 100 buffers */
108 #define DEFAULT_MAX_SIZE_BYTES (2 * 1024 * 1024) /* 2 MB */
109 #define DEFAULT_MAX_SIZE_TIME 2 * GST_SECOND /* 2 seconds */
110 #define DEFAULT_USE_BUFFERING FALSE
111 #define DEFAULT_USE_RATE_ESTIMATE TRUE
112 #define DEFAULT_LOW_PERCENT 10
113 #define DEFAULT_HIGH_PERCENT 99
114 #define DEFAULT_TEMP_REMOVE TRUE
115 #define DEFAULT_RING_BUFFER_MAX_SIZE 0
120 PROP_CUR_LEVEL_BUFFERS,
121 PROP_CUR_LEVEL_BYTES,
123 PROP_MAX_SIZE_BUFFERS,
127 PROP_USE_RATE_ESTIMATE,
133 PROP_RING_BUFFER_MAX_SIZE,
137 #define GST_QUEUE2_CLEAR_LEVEL(l) G_STMT_START { \
144 #define STATUS(queue, pad, msg) \
145 GST_CAT_LOG_OBJECT (queue_dataflow, queue, \
146 "(%s:%s) " msg ": %u of %u buffers, %u of %u " \
147 "bytes, %" G_GUINT64_FORMAT " of %" G_GUINT64_FORMAT \
148 " ns, %"G_GUINT64_FORMAT" items", \
149 GST_DEBUG_PAD_NAME (pad), \
150 queue->cur_level.buffers, \
151 queue->max_level.buffers, \
152 queue->cur_level.bytes, \
153 queue->max_level.bytes, \
154 queue->cur_level.time, \
155 queue->max_level.time, \
156 (guint64) (!QUEUE_IS_USING_QUEUE(queue) ? \
157 queue->current->writing_pos - queue->current->max_reading_pos : \
158 queue->queue->length))
160 #define GST_QUEUE2_MUTEX_LOCK(q) G_STMT_START { \
161 g_mutex_lock (q->qlock); \
164 #define GST_QUEUE2_MUTEX_LOCK_CHECK(q,res,label) G_STMT_START { \
165 GST_QUEUE2_MUTEX_LOCK (q); \
166 if (res != GST_FLOW_OK) \
170 #define GST_QUEUE2_MUTEX_UNLOCK(q) G_STMT_START { \
171 g_mutex_unlock (q->qlock); \
174 #define GST_QUEUE2_WAIT_DEL_CHECK(q, res, label) G_STMT_START { \
175 STATUS (queue, q->sinkpad, "wait for DEL"); \
176 q->waiting_del = TRUE; \
177 g_cond_wait (q->item_del, queue->qlock); \
178 q->waiting_del = FALSE; \
179 if (res != GST_FLOW_OK) { \
180 STATUS (queue, q->srcpad, "received DEL wakeup"); \
183 STATUS (queue, q->sinkpad, "received DEL"); \
186 #define GST_QUEUE2_WAIT_ADD_CHECK(q, res, label) G_STMT_START { \
187 STATUS (queue, q->srcpad, "wait for ADD"); \
188 q->waiting_add = TRUE; \
189 g_cond_wait (q->item_add, q->qlock); \
190 q->waiting_add = FALSE; \
191 if (res != GST_FLOW_OK) { \
192 STATUS (queue, q->srcpad, "received ADD wakeup"); \
195 STATUS (queue, q->srcpad, "received ADD"); \
198 #define GST_QUEUE2_SIGNAL_DEL(q) G_STMT_START { \
199 if (q->waiting_del) { \
200 STATUS (q, q->srcpad, "signal DEL"); \
201 g_cond_signal (q->item_del); \
205 #define GST_QUEUE2_SIGNAL_ADD(q) G_STMT_START { \
206 if (q->waiting_add) { \
207 STATUS (q, q->sinkpad, "signal ADD"); \
208 g_cond_signal (q->item_add); \
213 GST_DEBUG_CATEGORY_INIT (queue_debug, "queue2", 0, "queue element"); \
214 GST_DEBUG_CATEGORY_INIT (queue_dataflow, "queue2_dataflow", 0, \
215 "dataflow inside the queue element");
216 #define gst_queue2_parent_class parent_class
217 G_DEFINE_TYPE_WITH_CODE (GstQueue2, gst_queue2, GST_TYPE_ELEMENT, _do_init);
219 static void gst_queue2_finalize (GObject * object);
221 static void gst_queue2_set_property (GObject * object,
222 guint prop_id, const GValue * value, GParamSpec * pspec);
223 static void gst_queue2_get_property (GObject * object,
224 guint prop_id, GValue * value, GParamSpec * pspec);
226 static GstFlowReturn gst_queue2_chain (GstPad * pad, GstBuffer * buffer);
227 static GstFlowReturn gst_queue2_push_one (GstQueue2 * queue);
228 static void gst_queue2_loop (GstPad * pad);
230 static gboolean gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event);
232 static gboolean gst_queue2_handle_src_event (GstPad * pad, GstEvent * event);
233 static gboolean gst_queue2_handle_src_query (GstPad * pad, GstQuery * query);
234 static gboolean gst_queue2_handle_query (GstElement * element,
237 static GstCaps *gst_queue2_getcaps (GstPad * pad, GstCaps * filter);
238 static gboolean gst_queue2_acceptcaps (GstPad * pad, GstCaps * caps);
240 static GstFlowReturn gst_queue2_get_range (GstPad * pad, guint64 offset,
241 guint length, GstBuffer ** buffer);
243 static gboolean gst_queue2_src_activate_pull (GstPad * pad, gboolean active);
244 static gboolean gst_queue2_src_activate_push (GstPad * pad, gboolean active);
245 static gboolean gst_queue2_sink_activate_push (GstPad * pad, gboolean active);
246 static GstStateChangeReturn gst_queue2_change_state (GstElement * element,
247 GstStateChange transition);
249 static gboolean gst_queue2_is_empty (GstQueue2 * queue);
250 static gboolean gst_queue2_is_filled (GstQueue2 * queue);
252 static void update_cur_level (GstQueue2 * queue, GstQueue2Range * range);
254 /* static guint gst_queue2_signals[LAST_SIGNAL] = { 0 }; */
257 gst_queue2_class_init (GstQueue2Class * klass)
259 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
260 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
262 gobject_class->set_property = gst_queue2_set_property;
263 gobject_class->get_property = gst_queue2_get_property;
266 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BYTES,
267 g_param_spec_uint ("current-level-bytes", "Current level (kB)",
268 "Current amount of data in the queue (bytes)",
269 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
270 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BUFFERS,
271 g_param_spec_uint ("current-level-buffers", "Current level (buffers)",
272 "Current number of buffers in the queue",
273 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
274 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_TIME,
275 g_param_spec_uint64 ("current-level-time", "Current level (ns)",
276 "Current amount of data in the queue (in ns)",
277 0, G_MAXUINT64, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
279 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BYTES,
280 g_param_spec_uint ("max-size-bytes", "Max. size (kB)",
281 "Max. amount of data in the queue (bytes, 0=disable)",
282 0, G_MAXUINT, DEFAULT_MAX_SIZE_BYTES,
283 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
284 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BUFFERS,
285 g_param_spec_uint ("max-size-buffers", "Max. size (buffers)",
286 "Max. number of buffers in the queue (0=disable)", 0, G_MAXUINT,
287 DEFAULT_MAX_SIZE_BUFFERS,
288 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
289 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_TIME,
290 g_param_spec_uint64 ("max-size-time", "Max. size (ns)",
291 "Max. amount of data in the queue (in ns, 0=disable)", 0, G_MAXUINT64,
292 DEFAULT_MAX_SIZE_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
294 g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
295 g_param_spec_boolean ("use-buffering", "Use buffering",
296 "Emit GST_MESSAGE_BUFFERING based on low-/high-percent thresholds",
297 DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
298 g_object_class_install_property (gobject_class, PROP_USE_RATE_ESTIMATE,
299 g_param_spec_boolean ("use-rate-estimate", "Use Rate Estimate",
300 "Estimate the bitrate of the stream to calculate time level",
301 DEFAULT_USE_RATE_ESTIMATE,
302 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
303 g_object_class_install_property (gobject_class, PROP_LOW_PERCENT,
304 g_param_spec_int ("low-percent", "Low percent",
305 "Low threshold for buffering to start. Only used if use-buffering is True",
306 0, 100, DEFAULT_LOW_PERCENT,
307 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
308 g_object_class_install_property (gobject_class, PROP_HIGH_PERCENT,
309 g_param_spec_int ("high-percent", "High percent",
310 "High threshold for buffering to finish. Only used if use-buffering is True",
311 0, 100, DEFAULT_HIGH_PERCENT,
312 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
314 g_object_class_install_property (gobject_class, PROP_TEMP_TEMPLATE,
315 g_param_spec_string ("temp-template", "Temporary File Template",
316 "File template to store temporary files in, should contain directory "
317 "and XXXXXX. (NULL == disabled)",
318 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
320 g_object_class_install_property (gobject_class, PROP_TEMP_LOCATION,
321 g_param_spec_string ("temp-location", "Temporary File Location",
322 "Location to store temporary files in (Deprecated: Only read this "
323 "property, use temp-template to configure the name template)",
324 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
327 * GstQueue2:temp-remove
329 * When temp-template is set, remove the temporary file when going to READY.
333 g_object_class_install_property (gobject_class, PROP_TEMP_REMOVE,
334 g_param_spec_boolean ("temp-remove", "Remove the Temporary File",
335 "Remove the temp-location after use",
336 DEFAULT_TEMP_REMOVE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
339 * GstQueue2:ring-buffer-max-size
341 * The maximum size of the ring buffer in bytes. If set to 0, the ring
342 * buffer is disabled. Default 0.
346 g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
347 g_param_spec_uint64 ("ring-buffer-max-size",
348 "Max. ring buffer size (bytes)",
349 "Max. amount of data in the ring buffer (bytes, 0 = disabled)",
350 0, G_MAXUINT64, DEFAULT_RING_BUFFER_MAX_SIZE,
351 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
353 /* set several parent class virtual functions */
354 gobject_class->finalize = gst_queue2_finalize;
356 gst_element_class_add_pad_template (gstelement_class,
357 gst_static_pad_template_get (&srctemplate));
358 gst_element_class_add_pad_template (gstelement_class,
359 gst_static_pad_template_get (&sinktemplate));
361 gst_element_class_set_details_simple (gstelement_class, "Queue 2",
364 "Erik Walthinsen <omega@cse.ogi.edu>, "
365 "Wim Taymans <wim.taymans@gmail.com>");
367 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_queue2_change_state);
368 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_queue2_handle_query);
372 gst_queue2_init (GstQueue2 * queue)
374 queue->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
376 gst_pad_set_chain_function (queue->sinkpad,
377 GST_DEBUG_FUNCPTR (gst_queue2_chain));
378 gst_pad_set_activatepush_function (queue->sinkpad,
379 GST_DEBUG_FUNCPTR (gst_queue2_sink_activate_push));
380 gst_pad_set_event_function (queue->sinkpad,
381 GST_DEBUG_FUNCPTR (gst_queue2_handle_sink_event));
382 gst_pad_set_getcaps_function (queue->sinkpad,
383 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
384 gst_pad_set_acceptcaps_function (queue->sinkpad,
385 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
386 gst_element_add_pad (GST_ELEMENT (queue), queue->sinkpad);
388 queue->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
390 gst_pad_set_activatepull_function (queue->srcpad,
391 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_pull));
392 gst_pad_set_activatepush_function (queue->srcpad,
393 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_push));
394 gst_pad_set_getrange_function (queue->srcpad,
395 GST_DEBUG_FUNCPTR (gst_queue2_get_range));
396 gst_pad_set_getcaps_function (queue->srcpad,
397 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
398 gst_pad_set_acceptcaps_function (queue->srcpad,
399 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
400 gst_pad_set_event_function (queue->srcpad,
401 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_event));
402 gst_pad_set_query_function (queue->srcpad,
403 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_query));
404 gst_element_add_pad (GST_ELEMENT (queue), queue->srcpad);
407 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
408 queue->max_level.buffers = DEFAULT_MAX_SIZE_BUFFERS;
409 queue->max_level.bytes = DEFAULT_MAX_SIZE_BYTES;
410 queue->max_level.time = DEFAULT_MAX_SIZE_TIME;
411 queue->max_level.rate_time = DEFAULT_MAX_SIZE_TIME;
412 queue->use_buffering = DEFAULT_USE_BUFFERING;
413 queue->use_rate_estimate = DEFAULT_USE_RATE_ESTIMATE;
414 queue->low_percent = DEFAULT_LOW_PERCENT;
415 queue->high_percent = DEFAULT_HIGH_PERCENT;
417 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
418 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
420 queue->sinktime = GST_CLOCK_TIME_NONE;
421 queue->srctime = GST_CLOCK_TIME_NONE;
422 queue->sink_tainted = TRUE;
423 queue->src_tainted = TRUE;
425 queue->srcresult = GST_FLOW_WRONG_STATE;
426 queue->sinkresult = GST_FLOW_WRONG_STATE;
427 queue->is_eos = FALSE;
428 queue->in_timer = g_timer_new ();
429 queue->out_timer = g_timer_new ();
431 queue->qlock = g_mutex_new ();
432 queue->waiting_add = FALSE;
433 queue->item_add = g_cond_new ();
434 queue->waiting_del = FALSE;
435 queue->item_del = g_cond_new ();
436 queue->queue = g_queue_new ();
438 queue->buffering_percent = 100;
440 /* tempfile related */
441 queue->temp_template = NULL;
442 queue->temp_location = NULL;
443 queue->temp_location_set = FALSE;
444 queue->temp_remove = DEFAULT_TEMP_REMOVE;
446 queue->ring_buffer = NULL;
447 queue->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
449 GST_DEBUG_OBJECT (queue,
450 "initialized queue's not_empty & not_full conditions");
453 /* called only once, as opposed to dispose */
455 gst_queue2_finalize (GObject * object)
457 GstQueue2 *queue = GST_QUEUE2 (object);
459 GST_DEBUG_OBJECT (queue, "finalizing queue");
461 while (!g_queue_is_empty (queue->queue)) {
462 GstMiniObject *data = g_queue_pop_head (queue->queue);
464 gst_mini_object_unref (data);
467 g_queue_free (queue->queue);
468 g_mutex_free (queue->qlock);
469 g_cond_free (queue->item_add);
470 g_cond_free (queue->item_del);
471 g_timer_destroy (queue->in_timer);
472 g_timer_destroy (queue->out_timer);
474 /* temp_file path cleanup */
475 g_free (queue->temp_template);
476 g_free (queue->temp_location);
478 G_OBJECT_CLASS (parent_class)->finalize (object);
482 debug_ranges (GstQueue2 * queue)
484 GstQueue2Range *walk;
486 for (walk = queue->ranges; walk; walk = walk->next) {
487 GST_DEBUG_OBJECT (queue,
488 "range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "] (rb [%"
489 G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "]), reading %" G_GUINT64_FORMAT
490 " current range? %s", walk->offset, walk->writing_pos, walk->rb_offset,
491 walk->rb_writing_pos, walk->reading_pos,
492 walk == queue->current ? "**y**" : " n ");
496 /* clear all the downloaded ranges */
498 clean_ranges (GstQueue2 * queue)
500 GST_DEBUG_OBJECT (queue, "clean queue ranges");
502 g_slice_free_chain (GstQueue2Range, queue->ranges, next);
503 queue->ranges = NULL;
504 queue->current = NULL;
507 /* find a range that contains @offset or NULL when nothing does */
508 static GstQueue2Range *
509 find_range (GstQueue2 * queue, guint64 offset)
511 GstQueue2Range *range = NULL;
512 GstQueue2Range *walk;
514 /* first do a quick check for the current range */
515 for (walk = queue->ranges; walk; walk = walk->next) {
516 if (offset >= walk->offset && offset <= walk->writing_pos) {
517 /* we can reuse an existing range */
523 GST_DEBUG_OBJECT (queue,
524 "found range for %" G_GUINT64_FORMAT ": [%" G_GUINT64_FORMAT "-%"
525 G_GUINT64_FORMAT "]", offset, range->offset, range->writing_pos);
527 GST_DEBUG_OBJECT (queue, "no range for %" G_GUINT64_FORMAT, offset);
533 update_cur_level (GstQueue2 * queue, GstQueue2Range * range)
535 guint64 max_reading_pos, writing_pos;
537 writing_pos = range->writing_pos;
538 max_reading_pos = range->max_reading_pos;
540 if (writing_pos > max_reading_pos)
541 queue->cur_level.bytes = writing_pos - max_reading_pos;
543 queue->cur_level.bytes = 0;
546 /* make a new range for @offset or reuse an existing range */
547 static GstQueue2Range *
548 add_range (GstQueue2 * queue, guint64 offset)
550 GstQueue2Range *range, *prev, *next;
552 GST_DEBUG_OBJECT (queue, "find range for %" G_GUINT64_FORMAT, offset);
554 if ((range = find_range (queue, offset))) {
555 GST_DEBUG_OBJECT (queue,
556 "reusing range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, range->offset,
558 range->writing_pos = offset;
560 GST_DEBUG_OBJECT (queue,
561 "new range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, offset, offset);
563 range = g_slice_new0 (GstQueue2Range);
564 range->offset = offset;
565 /* we want to write to the next location in the ring buffer */
566 range->rb_offset = queue->current ? queue->current->rb_writing_pos : 0;
567 range->writing_pos = offset;
568 range->rb_writing_pos = range->rb_offset;
569 range->reading_pos = offset;
570 range->max_reading_pos = offset;
574 next = queue->ranges;
576 if (next->offset > offset) {
577 /* insert before next */
578 GST_DEBUG_OBJECT (queue,
579 "insert before range %p, offset %" G_GUINT64_FORMAT, next,
591 queue->ranges = range;
593 debug_ranges (queue);
595 /* update the stats for this range */
596 update_cur_level (queue, range);
602 /* clear and init the download ranges for offset 0 */
604 init_ranges (GstQueue2 * queue)
606 GST_DEBUG_OBJECT (queue, "init queue ranges");
608 /* get rid of all the current ranges */
609 clean_ranges (queue);
610 /* make a range for offset 0 */
611 queue->current = add_range (queue, 0);
615 gst_queue2_acceptcaps (GstPad * pad, GstCaps * caps)
621 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
623 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
624 result = gst_pad_peer_accept_caps (otherpad, caps);
630 gst_queue2_getcaps (GstPad * pad, GstCaps * filter)
636 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
637 if (G_UNLIKELY (queue == NULL))
638 return (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
640 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
641 result = gst_pad_peer_get_caps (otherpad, filter);
643 result = (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
645 gst_object_unref (queue);
650 /* calculate the diff between running time on the sink and src of the queue.
651 * This is the total amount of time in the queue. */
653 update_time_level (GstQueue2 * queue)
655 if (queue->sink_tainted) {
657 gst_segment_to_running_time (&queue->sink_segment, GST_FORMAT_TIME,
658 queue->sink_segment.position);
659 queue->sink_tainted = FALSE;
662 if (queue->src_tainted) {
664 gst_segment_to_running_time (&queue->src_segment, GST_FORMAT_TIME,
665 queue->src_segment.position);
666 queue->src_tainted = FALSE;
669 GST_DEBUG_OBJECT (queue, "sink %" GST_TIME_FORMAT ", src %" GST_TIME_FORMAT,
670 GST_TIME_ARGS (queue->sinktime), GST_TIME_ARGS (queue->srctime));
672 if (queue->sinktime != GST_CLOCK_TIME_NONE
673 && queue->srctime != GST_CLOCK_TIME_NONE
674 && queue->sinktime >= queue->srctime)
675 queue->cur_level.time = queue->sinktime - queue->srctime;
677 queue->cur_level.time = 0;
680 /* take a SEGMENT event and apply the values to segment, updating the time
683 apply_segment (GstQueue2 * queue, GstEvent * event, GstSegment * segment,
686 gst_event_copy_segment (event, segment);
688 if (segment->format == GST_FORMAT_BYTES) {
689 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
690 /* start is where we'll be getting from and as such writing next */
691 queue->current = add_range (queue, segment->start);
692 /* update the stats for this range */
693 update_cur_level (queue, queue->current);
697 /* now configure the values, we use these to track timestamps on the
699 if (segment->format != GST_FORMAT_TIME) {
700 /* non-time format, pretent the current time segment is closed with a
701 * 0 start and unknown stop time. */
702 segment->format = GST_FORMAT_TIME;
708 GST_DEBUG_OBJECT (queue, "configured SEGMENT %" GST_SEGMENT_FORMAT, segment);
711 queue->sink_tainted = TRUE;
713 queue->src_tainted = TRUE;
715 /* segment can update the time level of the queue */
716 update_time_level (queue);
719 /* take a buffer and update segment, updating the time level of the queue. */
721 apply_buffer (GstQueue2 * queue, GstBuffer * buffer, GstSegment * segment,
724 GstClockTime duration, timestamp;
726 timestamp = GST_BUFFER_TIMESTAMP (buffer);
727 duration = GST_BUFFER_DURATION (buffer);
729 /* if no timestamp is set, assume it's continuous with the previous
731 if (timestamp == GST_CLOCK_TIME_NONE)
732 timestamp = segment->position;
735 if (duration != GST_CLOCK_TIME_NONE)
736 timestamp += duration;
738 GST_DEBUG_OBJECT (queue, "position updated to %" GST_TIME_FORMAT,
739 GST_TIME_ARGS (timestamp));
741 segment->position = timestamp;
744 queue->sink_tainted = TRUE;
746 queue->src_tainted = TRUE;
748 /* calc diff with other end */
749 update_time_level (queue);
753 update_buffering (GstQueue2 * queue)
756 gboolean post = FALSE;
758 if (queue->high_percent <= 0)
761 #define GET_PERCENT(format,alt_max) ((queue->max_level.format) > 0 ? (queue->cur_level.format) * 100 / ((alt_max) > 0 ? MIN ((alt_max), (queue->max_level.format)) : (queue->max_level.format)) : 0)
764 /* on EOS we are always 100% full, we set the var here so that it we can
765 * reuse the logic below to stop buffering */
767 GST_LOG_OBJECT (queue, "we are EOS");
769 /* figure out the percent we are filled, we take the max of all formats. */
771 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
772 percent = GET_PERCENT (bytes, 0);
774 guint64 rb_size = queue->ring_buffer_max_size;
775 percent = GET_PERCENT (bytes, rb_size);
777 percent = MAX (percent, GET_PERCENT (time, 0));
778 percent = MAX (percent, GET_PERCENT (buffers, 0));
780 /* also apply the rate estimate when we need to */
781 if (queue->use_rate_estimate)
782 percent = MAX (percent, GET_PERCENT (rate_time, 0));
785 if (queue->is_buffering) {
787 /* if we were buffering see if we reached the high watermark */
788 if (percent >= queue->high_percent)
789 queue->is_buffering = FALSE;
791 /* we were not buffering, check if we need to start buffering if we drop
792 * below the low threshold */
793 if (percent < queue->low_percent) {
794 queue->is_buffering = TRUE;
795 queue->buffering_iteration++;
801 GstBufferingMode mode;
802 gint64 buffering_left = -1;
804 /* scale to high percent so that it becomes the 100% mark */
805 percent = percent * 100 / queue->high_percent;
810 if (percent != queue->buffering_percent) {
811 queue->buffering_percent = percent;
813 if (!QUEUE_IS_USING_QUEUE (queue)) {
814 GstFormat fmt = GST_FORMAT_BYTES;
817 if (QUEUE_IS_USING_RING_BUFFER (queue))
818 mode = GST_BUFFERING_TIMESHIFT;
820 mode = GST_BUFFERING_DOWNLOAD;
822 if (queue->byte_in_rate > 0) {
823 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &duration))
825 (gdouble) ((duration -
826 queue->current->writing_pos) * 1000) / queue->byte_in_rate;
828 buffering_left = G_MAXINT64;
831 mode = GST_BUFFERING_STREAM;
834 GST_DEBUG_OBJECT (queue, "buffering %d percent", (gint) percent);
835 message = gst_message_new_buffering (GST_OBJECT_CAST (queue),
837 gst_message_set_buffering_stats (message, mode,
838 queue->byte_in_rate, queue->byte_out_rate, buffering_left);
840 gst_element_post_message (GST_ELEMENT_CAST (queue), message);
843 GST_DEBUG_OBJECT (queue, "filled %d percent", (gint) percent);
850 reset_rate_timer (GstQueue2 * queue)
853 queue->bytes_out = 0;
854 queue->byte_in_rate = 0.0;
855 queue->byte_in_period = 0;
856 queue->byte_out_rate = 0.0;
857 queue->last_in_elapsed = 0.0;
858 queue->last_out_elapsed = 0.0;
859 queue->in_timer_started = FALSE;
860 queue->out_timer_started = FALSE;
863 /* the interval in seconds to recalculate the rate */
864 #define RATE_INTERVAL 0.2
865 /* Tuning for rate estimation. We use a large window for the input rate because
866 * it should be stable when connected to a network. The output rate is less
867 * stable (the elements preroll, queues behind a demuxer fill, ...) and should
868 * therefore adapt more quickly.
869 * However, initial input rate may be subject to a burst, and should therefore
870 * initially also adapt more quickly to changes, and only later on give higher
871 * weight to previous values. */
872 #define AVG_IN(avg,val,w1,w2) ((avg) * (w1) + (val) * (w2)) / ((w1) + (w2))
873 #define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
876 update_in_rates (GstQueue2 * queue)
878 gdouble elapsed, period;
879 gdouble byte_in_rate;
881 if (!queue->in_timer_started) {
882 queue->in_timer_started = TRUE;
883 g_timer_start (queue->in_timer);
887 elapsed = g_timer_elapsed (queue->in_timer, NULL);
889 /* recalc after each interval. */
890 if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
891 period = elapsed - queue->last_in_elapsed;
893 GST_DEBUG_OBJECT (queue,
894 "rates: period %f, in %" G_GUINT64_FORMAT ", global period %f",
895 period, queue->bytes_in, queue->byte_in_period);
897 byte_in_rate = queue->bytes_in / period;
899 if (queue->byte_in_rate == 0.0)
900 queue->byte_in_rate = byte_in_rate;
902 queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate,
903 (double) queue->byte_in_period, period);
905 /* another data point, cap at 16 for long time running average */
906 if (queue->byte_in_period < 16 * RATE_INTERVAL)
907 queue->byte_in_period += period;
909 /* reset the values to calculate rate over the next interval */
910 queue->last_in_elapsed = elapsed;
914 if (queue->byte_in_rate > 0.0) {
915 queue->cur_level.rate_time =
916 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
918 GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
919 queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
923 update_out_rates (GstQueue2 * queue)
925 gdouble elapsed, period;
926 gdouble byte_out_rate;
928 if (!queue->out_timer_started) {
929 queue->out_timer_started = TRUE;
930 g_timer_start (queue->out_timer);
934 elapsed = g_timer_elapsed (queue->out_timer, NULL);
936 /* recalc after each interval. */
937 if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
938 period = elapsed - queue->last_out_elapsed;
940 GST_DEBUG_OBJECT (queue,
941 "rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
943 byte_out_rate = queue->bytes_out / period;
945 if (queue->byte_out_rate == 0.0)
946 queue->byte_out_rate = byte_out_rate;
948 queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
950 /* reset the values to calculate rate over the next interval */
951 queue->last_out_elapsed = elapsed;
952 queue->bytes_out = 0;
954 if (queue->byte_in_rate > 0.0) {
955 queue->cur_level.rate_time =
956 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
958 GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
959 queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
963 update_cur_pos (GstQueue2 * queue, GstQueue2Range * range, guint64 pos)
965 guint64 reading_pos, max_reading_pos;
968 max_reading_pos = range->max_reading_pos;
970 max_reading_pos = MAX (max_reading_pos, reading_pos);
972 GST_DEBUG_OBJECT (queue,
973 "updating max_reading_pos from %" G_GUINT64_FORMAT " to %"
974 G_GUINT64_FORMAT, range->max_reading_pos, max_reading_pos);
975 range->max_reading_pos = max_reading_pos;
977 update_cur_level (queue, range);
981 perform_seek_to_offset (GstQueue2 * queue, guint64 offset)
986 GST_QUEUE2_MUTEX_UNLOCK (queue);
988 GST_DEBUG_OBJECT (queue, "Seeking to %" G_GUINT64_FORMAT, offset);
991 gst_event_new_seek (1.0, GST_FORMAT_BYTES,
992 GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
993 GST_SEEK_TYPE_NONE, -1);
995 res = gst_pad_push_event (queue->sinkpad, event);
996 GST_QUEUE2_MUTEX_LOCK (queue);
999 queue->current = add_range (queue, offset);
1004 /* see if there is enough data in the file to read a full buffer */
1006 gst_queue2_have_data (GstQueue2 * queue, guint64 offset, guint length)
1008 GstQueue2Range *range;
1010 GST_DEBUG_OBJECT (queue, "looking for offset %" G_GUINT64_FORMAT ", len %u",
1013 if ((range = find_range (queue, offset))) {
1014 if (queue->current != range) {
1015 GST_DEBUG_OBJECT (queue, "switching ranges, do seek to range position");
1016 perform_seek_to_offset (queue, range->writing_pos);
1019 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1020 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1022 /* we have a range for offset */
1023 GST_DEBUG_OBJECT (queue,
1024 "we have a range %p, offset %" G_GUINT64_FORMAT ", writing_pos %"
1025 G_GUINT64_FORMAT, range, range->offset, range->writing_pos);
1027 if (!QUEUE_IS_USING_RING_BUFFER (queue) && queue->is_eos)
1030 if (offset + length <= range->writing_pos)
1033 GST_DEBUG_OBJECT (queue,
1034 "Need more data (%" G_GUINT64_FORMAT " bytes more)",
1035 (offset + length) - range->writing_pos);
1038 GST_INFO_OBJECT (queue, "not found in any range");
1039 /* we don't have the range, see how far away we are, FIXME, find a good
1040 * threshold based on the incomming rate. */
1041 if (!queue->is_eos && queue->current) {
1042 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1043 if (offset < queue->current->offset || offset >
1044 queue->current->writing_pos + QUEUE_MAX_BYTES (queue) -
1045 queue->cur_level.bytes) {
1046 perform_seek_to_offset (queue, offset);
1048 GST_INFO_OBJECT (queue,
1049 "requested data is within range, wait for data");
1051 } else if (offset < queue->current->writing_pos + 200000) {
1052 update_cur_pos (queue, queue->current, offset + length);
1053 GST_INFO_OBJECT (queue, "wait for data");
1058 /* too far away, do a seek */
1059 perform_seek_to_offset (queue, offset);
1066 #define FSEEK_FILE(file,offset) (fseeko (file, (off_t) offset, SEEK_SET) != 0)
1067 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1068 #define FSEEK_FILE(file,offset) (lseek (fileno (file), (off_t) offset, SEEK_SET) == (off_t) -1)
1070 #define FSEEK_FILE(file,offset) (fseek (file, offset, SEEK_SET) != 0)
1073 static GstFlowReturn
1074 gst_queue2_read_data_at_offset (GstQueue2 * queue, guint64 offset, guint length,
1075 guint8 * dst, gint64 * read_return)
1077 guint8 *ring_buffer;
1080 ring_buffer = queue->ring_buffer;
1082 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, offset))
1085 /* this should not block */
1086 GST_LOG_OBJECT (queue, "Reading %d bytes from offset %" G_GUINT64_FORMAT,
1088 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1089 res = fread (dst, 1, length, queue->temp_file);
1091 memcpy (dst, ring_buffer + offset, length);
1095 GST_LOG_OBJECT (queue, "read %" G_GSIZE_FORMAT " bytes", res);
1097 if (G_UNLIKELY (res < length)) {
1098 if (!QUEUE_IS_USING_TEMP_FILE (queue))
1099 goto could_not_read;
1100 /* check for errors or EOF */
1101 if (ferror (queue->temp_file))
1102 goto could_not_read;
1103 if (feof (queue->temp_file) && length > 0)
1113 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1114 return GST_FLOW_ERROR;
1118 GST_ELEMENT_ERROR (queue, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
1119 return GST_FLOW_ERROR;
1123 GST_DEBUG ("non-regular file hits EOS");
1124 return GST_FLOW_UNEXPECTED;
1128 static GstFlowReturn
1129 gst_queue2_create_read (GstQueue2 * queue, guint64 offset, guint length,
1130 GstBuffer ** buffer)
1134 guint64 file_offset;
1135 guint block_length, remaining, read_length;
1138 GstFlowReturn ret = GST_FLOW_OK;
1140 /* allocate the output buffer of the requested size */
1141 buf = gst_buffer_new_and_alloc (length);
1142 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
1144 GST_DEBUG_OBJECT (queue, "Reading %u bytes from %" G_GUINT64_FORMAT, length,
1148 rb_size = queue->ring_buffer_max_size;
1151 while (remaining > 0) {
1152 /* configure how much/whether to read */
1153 if (!gst_queue2_have_data (queue, rpos, remaining)) {
1156 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1159 /* calculate how far away the offset is */
1160 if (queue->current->writing_pos > rpos)
1161 level = queue->current->writing_pos - rpos;
1165 GST_DEBUG_OBJECT (queue,
1166 "reading %" G_GUINT64_FORMAT ", writing %" G_GUINT64_FORMAT
1167 ", level %" G_GUINT64_FORMAT,
1168 rpos, queue->current->writing_pos, level);
1170 if (level >= rb_size) {
1171 /* we don't have the data but if we have a ring buffer that is full, we
1173 GST_DEBUG_OBJECT (queue,
1174 "ring buffer full, reading ring-buffer-max-size %"
1175 G_GUINT64_FORMAT " bytes", rb_size);
1176 read_length = rb_size;
1177 } else if (queue->is_eos) {
1178 /* won't get any more data so read any data we have */
1180 GST_DEBUG_OBJECT (queue,
1181 "EOS hit but read %" G_GUINT64_FORMAT " bytes that we have",
1183 read_length = level;
1189 if (read_length == 0) {
1190 if (QUEUE_IS_USING_RING_BUFFER (queue)
1191 && queue->current->max_reading_pos > rpos) {
1192 /* protect cached data (data between offset and max_reading_pos)
1193 * and update current level */
1194 GST_DEBUG_OBJECT (queue,
1195 "protecting cached data [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1196 "]", rpos, queue->current->max_reading_pos);
1197 queue->current->max_reading_pos = rpos;
1198 update_cur_level (queue, queue->current);
1200 GST_DEBUG_OBJECT (queue, "waiting for add");
1201 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
1205 /* we have the requested data so read it */
1206 read_length = remaining;
1209 /* set range reading_pos to actual reading position for this read */
1210 queue->current->reading_pos = rpos;
1212 /* congfigure how much and from where to read */
1213 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1215 (queue->current->rb_offset + (rpos -
1216 queue->current->offset)) % rb_size;
1217 if (file_offset + read_length > rb_size) {
1218 block_length = rb_size - file_offset;
1220 block_length = read_length;
1224 block_length = read_length;
1227 /* while we still have data to read, we loop */
1228 while (read_length > 0) {
1232 gst_queue2_read_data_at_offset (queue, file_offset, block_length,
1233 data, &read_return);
1234 if (ret != GST_FLOW_OK)
1237 file_offset += read_return;
1238 if (QUEUE_IS_USING_RING_BUFFER (queue))
1239 file_offset %= rb_size;
1241 data += read_return;
1242 read_length -= read_return;
1243 block_length = read_length;
1244 remaining -= read_return;
1246 rpos = (queue->current->reading_pos += read_return);
1247 update_cur_pos (queue, queue->current, queue->current->reading_pos);
1249 GST_QUEUE2_SIGNAL_DEL (queue);
1250 GST_DEBUG_OBJECT (queue, "%u bytes left to read", remaining);
1253 gst_buffer_unmap (buf, data, length);
1255 GST_BUFFER_OFFSET (buf) = offset;
1256 GST_BUFFER_OFFSET_END (buf) = offset + length;
1265 GST_DEBUG_OBJECT (queue, "EOS hit and we don't have any requested data");
1266 gst_buffer_unref (buf);
1267 return GST_FLOW_UNEXPECTED;
1271 GST_DEBUG_OBJECT (queue, "we are flushing");
1272 gst_buffer_unref (buf);
1273 return GST_FLOW_WRONG_STATE;
1277 GST_DEBUG_OBJECT (queue, "we have a read error");
1278 gst_buffer_unmap (buf, data, 0);
1279 gst_buffer_unref (buf);
1284 /* should be called with QUEUE_LOCK */
1285 static GstMiniObject *
1286 gst_queue2_read_item_from_file (GstQueue2 * queue)
1288 GstMiniObject *item;
1290 if (queue->starting_segment != NULL) {
1291 item = GST_MINI_OBJECT_CAST (queue->starting_segment);
1292 queue->starting_segment = NULL;
1296 guint64 reading_pos;
1298 reading_pos = queue->current->reading_pos;
1301 gst_queue2_create_read (queue, reading_pos, DEFAULT_BUFFER_SIZE,
1306 item = GST_MINI_OBJECT_CAST (buffer);
1308 case GST_FLOW_UNEXPECTED:
1309 item = GST_MINI_OBJECT_CAST (gst_event_new_eos ());
1319 /* must be called with MUTEX_LOCK. Will briefly release the lock when notifying
1320 * the temp filename. */
1322 gst_queue2_open_temp_location_file (GstQueue2 * queue)
1327 if (queue->temp_file)
1328 goto already_opened;
1330 GST_DEBUG_OBJECT (queue, "opening temp file %s", queue->temp_template);
1332 /* we have two cases:
1333 * - temp_location was set to something !NULL (Deprecated). in this case we
1334 * open the specified filename.
1335 * - temp_template was set, allocate a filename and open that filename
1337 if (!queue->temp_location_set) {
1339 if (queue->temp_template == NULL)
1342 /* make copy of the template, we don't want to change this */
1343 name = g_strdup (queue->temp_template);
1344 fd = g_mkstemp (name);
1346 goto mkstemp_failed;
1348 /* open the file for update/writing */
1349 queue->temp_file = fdopen (fd, "wb+");
1350 /* error creating file */
1351 if (queue->temp_file == NULL)
1354 g_free (queue->temp_location);
1355 queue->temp_location = name;
1357 GST_QUEUE2_MUTEX_UNLOCK (queue);
1359 /* we can't emit the notify with the lock */
1360 g_object_notify (G_OBJECT (queue), "temp-location");
1362 GST_QUEUE2_MUTEX_LOCK (queue);
1364 /* open the file for update/writing, this is deprecated but we still need to
1365 * support it for API/ABI compatibility */
1366 queue->temp_file = g_fopen (queue->temp_location, "wb+");
1367 /* error creating file */
1368 if (queue->temp_file == NULL)
1371 GST_DEBUG_OBJECT (queue, "opened temp file %s", queue->temp_template);
1378 GST_DEBUG_OBJECT (queue, "temp file was already open");
1383 GST_ELEMENT_ERROR (queue, RESOURCE, NOT_FOUND,
1384 (_("No Temp directory specified.")), (NULL));
1389 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1390 (_("Could not create temp file \"%s\"."), queue->temp_template),
1397 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1398 (_("Could not open file \"%s\" for reading."), name), GST_ERROR_SYSTEM);
1407 gst_queue2_close_temp_location_file (GstQueue2 * queue)
1410 if (queue->temp_file == NULL)
1413 GST_DEBUG_OBJECT (queue, "closing temp file");
1415 fflush (queue->temp_file);
1416 fclose (queue->temp_file);
1418 if (queue->temp_remove)
1419 remove (queue->temp_location);
1421 queue->temp_file = NULL;
1422 clean_ranges (queue);
1426 gst_queue2_flush_temp_file (GstQueue2 * queue)
1428 if (queue->temp_file == NULL)
1431 GST_DEBUG_OBJECT (queue, "flushing temp file");
1433 queue->temp_file = g_freopen (queue->temp_location, "wb+", queue->temp_file);
1437 gst_queue2_locked_flush (GstQueue2 * queue)
1439 if (!QUEUE_IS_USING_QUEUE (queue)) {
1440 if (QUEUE_IS_USING_TEMP_FILE (queue))
1441 gst_queue2_flush_temp_file (queue);
1442 init_ranges (queue);
1444 while (!g_queue_is_empty (queue->queue)) {
1445 GstMiniObject *data = g_queue_pop_head (queue->queue);
1447 /* Then lose another reference because we are supposed to destroy that
1448 data when flushing */
1449 gst_mini_object_unref (data);
1452 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1453 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
1454 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
1455 queue->sinktime = queue->srctime = GST_CLOCK_TIME_NONE;
1456 queue->sink_tainted = queue->src_tainted = TRUE;
1457 if (queue->starting_segment != NULL)
1458 gst_event_unref (queue->starting_segment);
1459 queue->starting_segment = NULL;
1460 queue->segment_event_received = FALSE;
1462 /* we deleted a lot of something */
1463 GST_QUEUE2_SIGNAL_DEL (queue);
1467 gst_queue2_wait_free_space (GstQueue2 * queue)
1469 /* We make space available if we're "full" according to whatever
1470 * the user defined as "full". */
1471 if (gst_queue2_is_filled (queue)) {
1474 /* pause the timer while we wait. The fact that we are waiting does not mean
1475 * the byterate on the input pad is lower */
1476 if ((started = queue->in_timer_started))
1477 g_timer_stop (queue->in_timer);
1479 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
1480 "queue is full, waiting for free space");
1482 /* Wait for space to be available, we could be unlocked because of a flush. */
1483 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1485 while (gst_queue2_is_filled (queue));
1487 /* and continue if we were running before */
1489 g_timer_continue (queue->in_timer);
1496 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "queue is flushing");
1502 gst_queue2_create_write (GstQueue2 * queue, GstBuffer * buffer)
1504 guint8 *odata, *data, *ring_buffer;
1505 guint size, rb_size;
1507 guint64 writing_pos, new_writing_pos;
1508 GstQueue2Range *range, *prev, *next;
1510 if (QUEUE_IS_USING_RING_BUFFER (queue))
1511 writing_pos = queue->current->rb_writing_pos;
1513 writing_pos = queue->current->writing_pos;
1514 ring_buffer = queue->ring_buffer;
1515 rb_size = queue->ring_buffer_max_size;
1517 odata = gst_buffer_map (buffer, &osize, NULL, GST_MAP_READ);
1522 GST_DEBUG_OBJECT (queue, "Writing %u bytes to %" G_GUINT64_FORMAT, size,
1523 GST_BUFFER_OFFSET (buffer));
1528 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1531 /* calculate the space in the ring buffer not used by data from
1532 * the current range */
1533 while (QUEUE_MAX_BYTES (queue) <= queue->cur_level.bytes) {
1534 /* wait until there is some free space */
1535 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1537 /* get the amount of space we have */
1538 space = QUEUE_MAX_BYTES (queue) - queue->cur_level.bytes;
1540 /* calculate if we need to split or if we can write the entire
1542 to_write = MIN (size, space);
1544 /* the writing position in the ring buffer after writing (part
1545 * or all of) the buffer */
1546 new_writing_pos = (writing_pos + to_write) % rb_size;
1549 range = queue->ranges;
1551 /* if we need to overwrite data in the ring buffer, we need to
1554 * warning: this code is complicated and includes some
1555 * simplifications - pen, paper and diagrams for the cases
1558 guint64 range_data_start, range_data_end;
1559 GstQueue2Range *range_to_destroy = NULL;
1561 range_data_start = range->rb_offset;
1562 range_data_end = range->rb_writing_pos;
1564 /* handle the special case where the range has no data in it */
1565 if (range->writing_pos == range->offset) {
1566 if (range != queue->current) {
1567 GST_DEBUG_OBJECT (queue,
1568 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1569 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1571 range_to_destroy = range;
1573 prev->next = range->next;
1578 if (range_data_end > range_data_start) {
1579 if (writing_pos >= range_data_end && new_writing_pos >= writing_pos)
1582 if (new_writing_pos > range_data_start) {
1583 if (new_writing_pos >= range_data_end) {
1584 GST_DEBUG_OBJECT (queue,
1585 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1586 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1588 range_to_destroy = range;
1590 prev->next = range->next;
1592 GST_DEBUG_OBJECT (queue,
1593 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1594 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1595 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1596 range->offset + new_writing_pos - range_data_start,
1598 range->offset += (new_writing_pos - range_data_start);
1599 range->rb_offset = new_writing_pos;
1603 guint64 new_wpos_virt = writing_pos + to_write;
1605 if (new_wpos_virt <= range_data_start)
1608 if (new_wpos_virt > rb_size && new_writing_pos >= range_data_end) {
1609 GST_DEBUG_OBJECT (queue,
1610 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1611 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1613 range_to_destroy = range;
1615 prev->next = range->next;
1617 GST_DEBUG_OBJECT (queue,
1618 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1619 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1620 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1621 range->offset + new_writing_pos - range_data_start,
1623 range->offset += (new_wpos_virt - range_data_start);
1624 range->rb_offset = new_writing_pos;
1629 if (!range_to_destroy)
1632 range = range->next;
1633 if (range_to_destroy) {
1634 if (range_to_destroy == queue->ranges)
1635 queue->ranges = range;
1636 g_slice_free (GstQueue2Range, range_to_destroy);
1637 range_to_destroy = NULL;
1642 new_writing_pos = writing_pos + to_write;
1645 if (QUEUE_IS_USING_TEMP_FILE (queue)
1646 && FSEEK_FILE (queue->temp_file, writing_pos))
1649 if (new_writing_pos > writing_pos) {
1650 GST_INFO_OBJECT (queue,
1651 "writing %u bytes to range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1652 "] (rb wpos %" G_GUINT64_FORMAT ")", to_write, queue->current->offset,
1653 queue->current->writing_pos, queue->current->rb_writing_pos);
1654 /* either not using ring buffer or no wrapping, just write */
1655 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1656 if (fwrite (data, to_write, 1, queue->temp_file) != 1)
1659 memcpy (ring_buffer + writing_pos, data, to_write);
1662 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
1663 /* try to merge with next range */
1664 while ((next = queue->current->next)) {
1665 GST_INFO_OBJECT (queue,
1666 "checking merge with next range %" G_GUINT64_FORMAT " < %"
1667 G_GUINT64_FORMAT, new_writing_pos, next->offset);
1668 if (new_writing_pos < next->offset)
1671 GST_DEBUG_OBJECT (queue, "merging ranges %" G_GUINT64_FORMAT,
1674 /* remove the group, we could choose to not read the data in this range
1675 * again. This would involve us doing a seek to the current writing position
1676 * in the range. FIXME, It would probably make sense to do a seek when there
1677 * is a lot of data in the range we merged with to avoid reading it all
1679 queue->current->next = next->next;
1680 g_slice_free (GstQueue2Range, next);
1682 debug_ranges (queue);
1684 goto update_and_signal;
1688 guint block_one, block_two;
1690 block_one = rb_size - writing_pos;
1691 block_two = to_write - block_one;
1693 if (block_one > 0) {
1694 GST_INFO_OBJECT (queue, "writing %u bytes", block_one);
1695 /* write data to end of ring buffer */
1696 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1697 if (fwrite (data, block_one, 1, queue->temp_file) != 1)
1700 memcpy (ring_buffer + writing_pos, data, block_one);
1704 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, 0))
1707 if (block_two > 0) {
1708 GST_INFO_OBJECT (queue, "writing %u bytes", block_two);
1709 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1710 if (fwrite (data + block_one, block_two, 1, queue->temp_file) != 1)
1713 memcpy (ring_buffer, data + block_one, block_two);
1719 /* update the writing positions */
1721 GST_INFO_OBJECT (queue,
1722 "wrote %u bytes to %" G_GUINT64_FORMAT " (%u bytes remaining to write)",
1723 to_write, writing_pos, size);
1725 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1727 queue->current->writing_pos += to_write;
1728 queue->current->rb_writing_pos = writing_pos = new_writing_pos;
1730 queue->current->writing_pos = writing_pos = new_writing_pos;
1732 update_cur_level (queue, queue->current);
1734 /* update the buffering status */
1735 if (queue->use_buffering)
1736 update_buffering (queue);
1738 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1739 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1741 GST_QUEUE2_SIGNAL_ADD (queue);
1744 gst_buffer_unmap (buffer, odata, osize);
1751 GST_DEBUG_OBJECT (queue, "we are flushing");
1752 gst_buffer_unmap (buffer, odata, osize);
1753 /* FIXME - GST_FLOW_UNEXPECTED ? */
1758 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1759 gst_buffer_unmap (buffer, odata, osize);
1766 GST_ELEMENT_ERROR (queue, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
1770 GST_ELEMENT_ERROR (queue, RESOURCE, WRITE,
1771 (_("Error while writing to download file.")),
1772 ("%s", g_strerror (errno)));
1775 gst_buffer_unmap (buffer, odata, osize);
1780 /* enqueue an item an update the level stats */
1782 gst_queue2_locked_enqueue (GstQueue2 * queue, gpointer item, gboolean isbuffer)
1788 buffer = GST_BUFFER_CAST (item);
1789 size = gst_buffer_get_size (buffer);
1791 /* add buffer to the statistics */
1792 if (QUEUE_IS_USING_QUEUE (queue)) {
1793 queue->cur_level.buffers++;
1794 queue->cur_level.bytes += size;
1796 queue->bytes_in += size;
1798 /* apply new buffer to segment stats */
1799 apply_buffer (queue, buffer, &queue->sink_segment, TRUE);
1800 /* update the byterate stats */
1801 update_in_rates (queue);
1803 if (!QUEUE_IS_USING_QUEUE (queue)) {
1804 /* FIXME - check return value? */
1805 gst_queue2_create_write (queue, buffer);
1807 } else if (GST_IS_EVENT (item)) {
1810 event = GST_EVENT_CAST (item);
1812 switch (GST_EVENT_TYPE (event)) {
1814 /* Zero the thresholds, this makes sure the queue is completely
1815 * filled and we can read all data from the queue. */
1816 GST_DEBUG_OBJECT (queue, "we have EOS");
1817 queue->is_eos = TRUE;
1819 case GST_EVENT_SEGMENT:
1820 apply_segment (queue, event, &queue->sink_segment, TRUE);
1821 /* This is our first new segment, we hold it
1822 * as we can't save it on the temp file */
1823 if (!QUEUE_IS_USING_QUEUE (queue)) {
1824 if (queue->segment_event_received)
1825 goto unexpected_event;
1827 queue->segment_event_received = TRUE;
1828 if (queue->starting_segment != NULL)
1829 gst_event_unref (queue->starting_segment);
1830 queue->starting_segment = event;
1833 /* a new segment allows us to accept more buffers if we got UNEXPECTED
1834 * from downstream */
1835 queue->unexpected = FALSE;
1838 if (!QUEUE_IS_USING_QUEUE (queue))
1839 goto unexpected_event;
1843 g_warning ("Unexpected item %p added in queue %s (refcounting problem?)",
1844 item, GST_OBJECT_NAME (queue));
1845 /* we can't really unref since we don't know what it is */
1850 /* update the buffering status */
1851 if (queue->use_buffering)
1852 update_buffering (queue);
1854 if (QUEUE_IS_USING_QUEUE (queue)) {
1855 g_queue_push_tail (queue->queue, item);
1857 gst_mini_object_unref (GST_MINI_OBJECT_CAST (item));
1860 GST_QUEUE2_SIGNAL_ADD (queue);
1869 ("Unexpected event of kind %s can't be added in temp file of queue %s ",
1870 gst_event_type_get_name (GST_EVENT_TYPE (item)),
1871 GST_OBJECT_NAME (queue));
1872 gst_event_unref (GST_EVENT_CAST (item));
1877 /* dequeue an item from the queue and update level stats */
1878 static GstMiniObject *
1879 gst_queue2_locked_dequeue (GstQueue2 * queue, gboolean * is_buffer)
1881 GstMiniObject *item;
1883 if (!QUEUE_IS_USING_QUEUE (queue))
1884 item = gst_queue2_read_item_from_file (queue);
1886 item = g_queue_pop_head (queue->queue);
1891 if (GST_IS_BUFFER (item)) {
1895 buffer = GST_BUFFER_CAST (item);
1896 size = gst_buffer_get_size (buffer);
1899 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1900 "retrieved buffer %p from queue", buffer);
1902 if (QUEUE_IS_USING_QUEUE (queue)) {
1903 queue->cur_level.buffers--;
1904 queue->cur_level.bytes -= size;
1906 queue->bytes_out += size;
1908 apply_buffer (queue, buffer, &queue->src_segment, FALSE);
1909 /* update the byterate stats */
1910 update_out_rates (queue);
1911 /* update the buffering */
1912 if (queue->use_buffering)
1913 update_buffering (queue);
1915 } else if (GST_IS_EVENT (item)) {
1916 GstEvent *event = GST_EVENT_CAST (item);
1920 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1921 "retrieved event %p from queue", event);
1923 switch (GST_EVENT_TYPE (event)) {
1925 /* queue is empty now that we dequeued the EOS */
1926 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1928 case GST_EVENT_SEGMENT:
1929 apply_segment (queue, event, &queue->src_segment, FALSE);
1936 ("Unexpected item %p dequeued from queue %s (refcounting problem?)",
1937 item, GST_OBJECT_NAME (queue));
1940 GST_QUEUE2_SIGNAL_DEL (queue);
1947 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "the queue is empty");
1953 gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event)
1957 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
1959 switch (GST_EVENT_TYPE (event)) {
1960 case GST_EVENT_FLUSH_START:
1962 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush start event");
1963 if (QUEUE_IS_USING_QUEUE (queue)) {
1965 gst_pad_push_event (queue->srcpad, event);
1967 /* now unblock the chain function */
1968 GST_QUEUE2_MUTEX_LOCK (queue);
1969 queue->srcresult = GST_FLOW_WRONG_STATE;
1970 queue->sinkresult = GST_FLOW_WRONG_STATE;
1971 /* unblock the loop and chain functions */
1972 GST_QUEUE2_SIGNAL_ADD (queue);
1973 GST_QUEUE2_SIGNAL_DEL (queue);
1974 GST_QUEUE2_MUTEX_UNLOCK (queue);
1976 /* make sure it pauses, this should happen since we sent
1977 * flush_start downstream. */
1978 gst_pad_pause_task (queue->srcpad);
1979 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "loop stopped");
1981 GST_QUEUE2_MUTEX_LOCK (queue);
1982 /* flush the sink pad */
1983 queue->sinkresult = GST_FLOW_WRONG_STATE;
1984 GST_QUEUE2_SIGNAL_DEL (queue);
1985 GST_QUEUE2_MUTEX_UNLOCK (queue);
1987 gst_event_unref (event);
1991 case GST_EVENT_FLUSH_STOP:
1993 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush stop event");
1995 if (QUEUE_IS_USING_QUEUE (queue)) {
1997 gst_pad_push_event (queue->srcpad, event);
1999 GST_QUEUE2_MUTEX_LOCK (queue);
2000 gst_queue2_locked_flush (queue);
2001 queue->srcresult = GST_FLOW_OK;
2002 queue->sinkresult = GST_FLOW_OK;
2003 queue->is_eos = FALSE;
2004 queue->unexpected = FALSE;
2005 /* reset rate counters */
2006 reset_rate_timer (queue);
2007 gst_pad_start_task (queue->srcpad, (GstTaskFunction) gst_queue2_loop,
2009 GST_QUEUE2_MUTEX_UNLOCK (queue);
2011 GST_QUEUE2_MUTEX_LOCK (queue);
2012 queue->segment_event_received = FALSE;
2013 queue->is_eos = FALSE;
2014 queue->unexpected = FALSE;
2015 queue->sinkresult = GST_FLOW_OK;
2016 GST_QUEUE2_MUTEX_UNLOCK (queue);
2018 gst_event_unref (event);
2023 if (GST_EVENT_IS_SERIALIZED (event)) {
2024 /* serialized events go in the queue */
2025 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2026 /* refuse more events on EOS */
2029 gst_queue2_locked_enqueue (queue, event, FALSE);
2030 GST_QUEUE2_MUTEX_UNLOCK (queue);
2032 /* non-serialized events are passed upstream. */
2033 gst_pad_push_event (queue->srcpad, event);
2043 GST_DEBUG_OBJECT (queue, "refusing event, we are flushing");
2044 GST_QUEUE2_MUTEX_UNLOCK (queue);
2045 gst_event_unref (event);
2050 GST_DEBUG_OBJECT (queue, "refusing event, we are EOS");
2051 GST_QUEUE2_MUTEX_UNLOCK (queue);
2052 gst_event_unref (event);
2058 gst_queue2_is_empty (GstQueue2 * queue)
2060 /* never empty on EOS */
2064 if (!QUEUE_IS_USING_QUEUE (queue) && queue->current) {
2065 return queue->current->writing_pos <= queue->current->max_reading_pos;
2067 if (queue->queue->length == 0)
2075 gst_queue2_is_filled (GstQueue2 * queue)
2079 /* always filled on EOS */
2083 #define CHECK_FILLED(format,alt_max) ((queue->max_level.format) > 0 && \
2084 (queue->cur_level.format) >= ((alt_max) ? \
2085 MIN ((queue->max_level.format), (alt_max)) : (queue->max_level.format)))
2087 /* if using a ring buffer we're filled if all ring buffer space is used
2088 * _by the current range_ */
2089 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
2090 guint64 rb_size = queue->ring_buffer_max_size;
2091 GST_DEBUG_OBJECT (queue,
2092 "max bytes %u, rb size %" G_GUINT64_FORMAT ", cur bytes %u",
2093 queue->max_level.bytes, rb_size, queue->cur_level.bytes);
2094 return CHECK_FILLED (bytes, rb_size);
2097 /* if using file, we're never filled if we don't have EOS */
2098 if (QUEUE_IS_USING_TEMP_FILE (queue))
2101 /* we are never filled when we have no buffers at all */
2102 if (queue->cur_level.buffers == 0)
2105 /* we are filled if one of the current levels exceeds the max */
2106 res = CHECK_FILLED (buffers, 0) || CHECK_FILLED (bytes, 0)
2107 || CHECK_FILLED (time, 0);
2109 /* if we need to, use the rate estimate to check against the max time we are
2110 * allowed to queue */
2111 if (queue->use_rate_estimate)
2112 res |= CHECK_FILLED (rate_time, 0);
2118 static GstFlowReturn
2119 gst_queue2_chain (GstPad * pad, GstBuffer * buffer)
2123 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
2125 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2126 "received buffer %p of size %d, time %" GST_TIME_FORMAT ", duration %"
2127 GST_TIME_FORMAT, buffer, gst_buffer_get_size (buffer),
2128 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
2129 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
2131 /* we have to lock the queue since we span threads */
2132 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2133 /* when we received EOS, we refuse more data */
2136 /* when we received unexpected from downstream, refuse more buffers */
2137 if (queue->unexpected)
2138 goto out_unexpected;
2140 if (!gst_queue2_wait_free_space (queue))
2143 /* put buffer in queue now */
2144 gst_queue2_locked_enqueue (queue, buffer, TRUE);
2145 GST_QUEUE2_MUTEX_UNLOCK (queue);
2149 /* special conditions */
2152 GstFlowReturn ret = queue->sinkresult;
2154 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2155 "exit because task paused, reason: %s", gst_flow_get_name (ret));
2156 GST_QUEUE2_MUTEX_UNLOCK (queue);
2157 gst_buffer_unref (buffer);
2163 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2164 GST_QUEUE2_MUTEX_UNLOCK (queue);
2165 gst_buffer_unref (buffer);
2167 return GST_FLOW_UNEXPECTED;
2171 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2172 "exit because we received UNEXPECTED");
2173 GST_QUEUE2_MUTEX_UNLOCK (queue);
2174 gst_buffer_unref (buffer);
2176 return GST_FLOW_UNEXPECTED;
2180 /* dequeue an item from the queue an push it downstream. This functions returns
2181 * the result of the push. */
2182 static GstFlowReturn
2183 gst_queue2_push_one (GstQueue2 * queue)
2185 GstFlowReturn result = GST_FLOW_OK;
2186 GstMiniObject *data;
2187 gboolean is_buffer = FALSE;
2189 data = gst_queue2_locked_dequeue (queue, &is_buffer);
2194 GST_QUEUE2_MUTEX_UNLOCK (queue);
2202 buffer = GST_BUFFER_CAST (data);
2204 caps = GST_BUFFER_CAPS (buffer);
2208 /* set caps before pushing the buffer so that core does not try to do
2209 * something fancy to check if this is possible. */
2210 if (caps && caps != GST_PAD_CAPS (queue->srcpad))
2211 gst_pad_set_caps (queue->srcpad, caps);
2214 result = gst_pad_push (queue->srcpad, buffer);
2216 /* need to check for srcresult here as well */
2217 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2218 if (result == GST_FLOW_UNEXPECTED) {
2219 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2220 "got UNEXPECTED from downstream");
2221 /* stop pushing buffers, we dequeue all items until we see an item that we
2222 * can push again, which is EOS or SEGMENT. If there is nothing in the
2223 * queue we can push, we set a flag to make the sinkpad refuse more
2224 * buffers with an UNEXPECTED return value until we receive something
2225 * pushable again or we get flushed. */
2226 while ((data = gst_queue2_locked_dequeue (queue, &is_buffer))) {
2228 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2229 "dropping UNEXPECTED buffer %p", data);
2230 gst_buffer_unref (GST_BUFFER_CAST (data));
2231 } else if (GST_IS_EVENT (data)) {
2232 GstEvent *event = GST_EVENT_CAST (data);
2233 GstEventType type = GST_EVENT_TYPE (event);
2235 if (type == GST_EVENT_EOS || type == GST_EVENT_SEGMENT) {
2236 /* we found a pushable item in the queue, push it out */
2237 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2238 "pushing pushable event %s after UNEXPECTED",
2239 GST_EVENT_TYPE_NAME (event));
2242 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2243 "dropping UNEXPECTED event %p", event);
2244 gst_event_unref (event);
2247 /* no more items in the queue. Set the unexpected flag so that upstream
2248 * make us refuse any more buffers on the sinkpad. Since we will still
2249 * accept EOS and SEGMENT we return _FLOW_OK to the caller so that the
2250 * task function does not shut down. */
2251 queue->unexpected = TRUE;
2252 result = GST_FLOW_OK;
2254 } else if (GST_IS_EVENT (data)) {
2255 GstEvent *event = GST_EVENT_CAST (data);
2256 GstEventType type = GST_EVENT_TYPE (event);
2258 gst_pad_push_event (queue->srcpad, event);
2260 /* if we're EOS, return UNEXPECTED so that the task pauses. */
2261 if (type == GST_EVENT_EOS) {
2262 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2263 "pushed EOS event %p, return UNEXPECTED", event);
2264 result = GST_FLOW_UNEXPECTED;
2267 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2274 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2275 "exit because we have no item in the queue");
2276 return GST_FLOW_ERROR;
2280 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we are flushing");
2281 return GST_FLOW_WRONG_STATE;
2285 /* called repeadedly with @pad as the source pad. This function should push out
2286 * data to the peer element. */
2288 gst_queue2_loop (GstPad * pad)
2293 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2295 /* have to lock for thread-safety */
2296 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2298 if (gst_queue2_is_empty (queue)) {
2301 /* pause the timer while we wait. The fact that we are waiting does not mean
2302 * the byterate on the output pad is lower */
2303 if ((started = queue->out_timer_started))
2304 g_timer_stop (queue->out_timer);
2306 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
2307 "queue is empty, waiting for new data");
2309 /* Wait for data to be available, we could be unlocked because of a flush. */
2310 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
2312 while (gst_queue2_is_empty (queue));
2314 /* and continue if we were running before */
2316 g_timer_continue (queue->out_timer);
2318 ret = gst_queue2_push_one (queue);
2319 queue->srcresult = ret;
2320 queue->sinkresult = ret;
2321 if (ret != GST_FLOW_OK)
2324 GST_QUEUE2_MUTEX_UNLOCK (queue);
2331 gboolean eos = queue->is_eos;
2332 GstFlowReturn ret = queue->srcresult;
2334 gst_pad_pause_task (queue->srcpad);
2335 GST_QUEUE2_MUTEX_UNLOCK (queue);
2336 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2337 "pause task, reason: %s", gst_flow_get_name (queue->srcresult));
2338 /* let app know about us giving up if upstream is not expected to do so */
2339 /* UNEXPECTED is already taken care of elsewhere */
2340 if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED)) {
2341 GST_ELEMENT_ERROR (queue, STREAM, FAILED,
2342 (_("Internal data flow error.")),
2343 ("streaming task paused, reason %s (%d)",
2344 gst_flow_get_name (ret), ret));
2345 gst_pad_push_event (queue->srcpad, gst_event_new_eos ());
2352 gst_queue2_handle_src_event (GstPad * pad, GstEvent * event)
2354 gboolean res = TRUE;
2355 GstQueue2 *queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2357 if (G_UNLIKELY (queue == NULL)) {
2358 gst_event_unref (event);
2361 #ifndef GST_DISABLE_GST_DEBUG
2362 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "got event %p (%s)",
2363 event, GST_EVENT_TYPE_NAME (event));
2366 switch (GST_EVENT_TYPE (event)) {
2367 case GST_EVENT_FLUSH_START:
2368 if (QUEUE_IS_USING_QUEUE (queue)) {
2369 /* just forward upstream */
2370 res = gst_pad_push_event (queue->sinkpad, event);
2372 /* now unblock the getrange function */
2373 GST_QUEUE2_MUTEX_LOCK (queue);
2374 GST_DEBUG_OBJECT (queue, "flushing");
2375 queue->srcresult = GST_FLOW_WRONG_STATE;
2376 GST_QUEUE2_SIGNAL_ADD (queue);
2377 GST_QUEUE2_MUTEX_UNLOCK (queue);
2379 /* when using a temp file, we eat the event */
2381 gst_event_unref (event);
2384 case GST_EVENT_FLUSH_STOP:
2385 if (QUEUE_IS_USING_QUEUE (queue)) {
2386 /* just forward upstream */
2387 res = gst_pad_push_event (queue->sinkpad, event);
2389 /* now unblock the getrange function */
2390 GST_QUEUE2_MUTEX_LOCK (queue);
2391 queue->srcresult = GST_FLOW_OK;
2392 if (queue->current) {
2393 /* forget the highest read offset, we'll calculate a new one when we
2394 * get the next getrange request. We need to do this in order to reset
2395 * the buffering percentage */
2396 queue->current->max_reading_pos = 0;
2398 GST_QUEUE2_MUTEX_UNLOCK (queue);
2400 /* when using a temp file, we eat the event */
2402 gst_event_unref (event);
2406 res = gst_pad_push_event (queue->sinkpad, event);
2410 gst_object_unref (queue);
2415 gst_queue2_peer_query (GstQueue2 * queue, GstPad * pad, GstQuery * query)
2417 gboolean ret = FALSE;
2420 if ((peer = gst_pad_get_peer (pad))) {
2421 ret = gst_pad_query (peer, query);
2422 gst_object_unref (peer);
2428 gst_queue2_handle_src_query (GstPad * pad, GstQuery * query)
2432 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2433 if (G_UNLIKELY (queue == NULL))
2436 switch (GST_QUERY_TYPE (query)) {
2437 case GST_QUERY_POSITION:
2442 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2445 /* get peer position */
2446 gst_query_parse_position (query, &format, &peer_pos);
2448 /* FIXME: this code assumes that there's no discont in the queue */
2450 case GST_FORMAT_BYTES:
2451 peer_pos -= queue->cur_level.bytes;
2453 case GST_FORMAT_TIME:
2454 peer_pos -= queue->cur_level.time;
2457 GST_WARNING_OBJECT (queue, "dropping query in %s format, don't "
2458 "know how to adjust value", gst_format_get_name (format));
2461 /* set updated position */
2462 gst_query_set_position (query, format, peer_pos);
2465 case GST_QUERY_DURATION:
2467 GST_DEBUG_OBJECT (queue, "doing peer query");
2469 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2472 GST_DEBUG_OBJECT (queue, "peer query success");
2475 case GST_QUERY_BUFFERING:
2479 GST_DEBUG_OBJECT (queue, "query buffering");
2481 /* FIXME - is this condition correct? what should ring buffer do? */
2482 if (QUEUE_IS_USING_QUEUE (queue)) {
2483 /* no temp file, just forward to the peer */
2484 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2486 GST_DEBUG_OBJECT (queue, "buffering forwarded to peer");
2488 gint64 start, stop, range_start, range_stop;
2489 guint64 writing_pos;
2491 gint64 estimated_total, buffering_left;
2494 gboolean peer_res, is_buffering, is_eos;
2495 gdouble byte_in_rate, byte_out_rate;
2496 GstQueue2Range *queued_ranges;
2498 /* we need a current download region */
2499 if (queue->current == NULL)
2502 writing_pos = queue->current->writing_pos;
2503 byte_in_rate = queue->byte_in_rate;
2504 byte_out_rate = queue->byte_out_rate;
2505 is_buffering = queue->is_buffering;
2506 is_eos = queue->is_eos;
2507 percent = queue->buffering_percent;
2510 /* we're EOS, we know the duration in bytes now */
2512 duration = writing_pos;
2514 /* get duration of upstream in bytes */
2515 peer_fmt = GST_FORMAT_BYTES;
2516 peer_res = gst_pad_query_peer_duration (queue->sinkpad, &peer_fmt,
2520 /* calculate remaining and total download time */
2521 if (peer_res && byte_in_rate > 0.0) {
2522 estimated_total = (duration * 1000) / byte_in_rate;
2523 buffering_left = ((duration - writing_pos) * 1000) / byte_in_rate;
2525 estimated_total = -1;
2526 buffering_left = -1;
2528 GST_DEBUG_OBJECT (queue, "estimated %" G_GINT64_FORMAT ", left %"
2529 G_GINT64_FORMAT, estimated_total, buffering_left);
2531 gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
2534 case GST_FORMAT_PERCENT:
2535 /* we need duration */
2539 GST_DEBUG_OBJECT (queue,
2540 "duration %" G_GINT64_FORMAT ", writing %" G_GINT64_FORMAT,
2541 duration, writing_pos);
2544 /* get our available data relative to the duration */
2546 stop = GST_FORMAT_PERCENT_MAX * writing_pos / duration;
2550 case GST_FORMAT_BYTES:
2560 /* fill out the buffered ranges */
2561 for (queued_ranges = queue->ranges; queued_ranges;
2562 queued_ranges = queued_ranges->next) {
2564 case GST_FORMAT_PERCENT:
2565 if (duration == -1) {
2570 range_start = 100 * queued_ranges->offset / duration;
2571 range_stop = 100 * queued_ranges->writing_pos / duration;
2573 case GST_FORMAT_BYTES:
2574 range_start = queued_ranges->offset;
2575 range_stop = queued_ranges->writing_pos;
2582 if (range_start == range_stop)
2584 GST_DEBUG_OBJECT (queue,
2585 "range starting at %" G_GINT64_FORMAT " and finishing at %"
2586 G_GINT64_FORMAT, range_start, range_stop);
2587 gst_query_add_buffering_range (query, range_start, range_stop);
2590 gst_query_set_buffering_percent (query, is_buffering, percent);
2591 gst_query_set_buffering_range (query, format, start, stop,
2593 gst_query_set_buffering_stats (query, GST_BUFFERING_DOWNLOAD,
2594 byte_in_rate, byte_out_rate, buffering_left);
2598 case GST_QUERY_SCHEDULING:
2602 /* we can operate in pull mode when we are using a tempfile */
2603 pull_mode = !QUEUE_IS_USING_QUEUE (queue);
2605 gst_query_set_scheduling (query, pull_mode, pull_mode, FALSE, 0, -1, 1);
2609 /* peer handled other queries */
2610 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2615 gst_object_unref (queue);
2621 GST_DEBUG_OBJECT (queue, "failed peer query");
2622 gst_object_unref (queue);
2628 gst_queue2_handle_query (GstElement * element, GstQuery * query)
2630 /* simply forward to the srcpad query function */
2631 return gst_queue2_handle_src_query (GST_QUEUE2_CAST (element)->srcpad, query);
2635 gst_queue2_update_upstream_size (GstQueue2 * queue)
2637 GstFormat fmt = GST_FORMAT_BYTES;
2638 gint64 upstream_size = -1;
2640 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &upstream_size)) {
2641 GST_INFO_OBJECT (queue, "upstream size: %" G_GINT64_FORMAT, upstream_size);
2642 queue->upstream_size = upstream_size;
2646 static GstFlowReturn
2647 gst_queue2_get_range (GstPad * pad, guint64 offset, guint length,
2648 GstBuffer ** buffer)
2653 queue = GST_QUEUE2_CAST (gst_pad_get_parent (pad));
2655 length = (length == -1) ? DEFAULT_BUFFER_SIZE : length;
2656 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2657 offset = (offset == -1) ? queue->current->reading_pos : offset;
2659 GST_DEBUG_OBJECT (queue,
2660 "Getting range: offset %" G_GUINT64_FORMAT ", length %u", offset, length);
2662 /* catch any reads beyond the size of the file here to make sure queue2
2663 * doesn't send seek events beyond the size of the file upstream, since
2664 * that would confuse elements such as souphttpsrc and/or http servers.
2665 * Demuxers often just loop until EOS at the end of the file to figure out
2666 * when they've read all the end-headers or index chunks. */
2667 if (G_UNLIKELY (offset >= queue->upstream_size)) {
2668 gst_queue2_update_upstream_size (queue);
2669 if (queue->upstream_size > 0 && offset >= queue->upstream_size)
2670 goto out_unexpected;
2673 if (G_UNLIKELY (offset + length > queue->upstream_size)) {
2674 gst_queue2_update_upstream_size (queue);
2675 if (queue->upstream_size > 0 && offset + length >= queue->upstream_size) {
2676 length = queue->upstream_size - offset;
2677 GST_DEBUG_OBJECT (queue, "adjusting length downto %d", length);
2681 /* FIXME - function will block when the range is not yet available */
2682 ret = gst_queue2_create_read (queue, offset, length, buffer);
2683 GST_QUEUE2_MUTEX_UNLOCK (queue);
2685 gst_object_unref (queue);
2692 ret = queue->srcresult;
2694 GST_DEBUG_OBJECT (queue, "we are flushing");
2695 GST_QUEUE2_MUTEX_UNLOCK (queue);
2696 gst_object_unref (queue);
2701 GST_DEBUG_OBJECT (queue, "read beyond end of file");
2702 GST_QUEUE2_MUTEX_UNLOCK (queue);
2703 gst_object_unref (queue);
2704 return GST_FLOW_UNEXPECTED;
2708 /* sink currently only operates in push mode */
2710 gst_queue2_sink_activate_push (GstPad * pad, gboolean active)
2712 gboolean result = TRUE;
2715 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2718 GST_QUEUE2_MUTEX_LOCK (queue);
2719 GST_DEBUG_OBJECT (queue, "activating push mode");
2720 queue->srcresult = GST_FLOW_OK;
2721 queue->sinkresult = GST_FLOW_OK;
2722 queue->is_eos = FALSE;
2723 queue->unexpected = FALSE;
2724 reset_rate_timer (queue);
2725 GST_QUEUE2_MUTEX_UNLOCK (queue);
2727 /* unblock chain function */
2728 GST_QUEUE2_MUTEX_LOCK (queue);
2729 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2730 queue->srcresult = GST_FLOW_WRONG_STATE;
2731 queue->sinkresult = GST_FLOW_WRONG_STATE;
2732 gst_queue2_locked_flush (queue);
2733 GST_QUEUE2_MUTEX_UNLOCK (queue);
2736 gst_object_unref (queue);
2741 /* src operating in push mode, we start a task on the source pad that pushes out
2742 * buffers from the queue */
2744 gst_queue2_src_activate_push (GstPad * pad, gboolean active)
2746 gboolean result = FALSE;
2749 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2752 GST_QUEUE2_MUTEX_LOCK (queue);
2753 GST_DEBUG_OBJECT (queue, "activating push mode");
2754 queue->srcresult = GST_FLOW_OK;
2755 queue->sinkresult = GST_FLOW_OK;
2756 queue->is_eos = FALSE;
2757 queue->unexpected = FALSE;
2758 result = gst_pad_start_task (pad, (GstTaskFunction) gst_queue2_loop, pad);
2759 GST_QUEUE2_MUTEX_UNLOCK (queue);
2761 /* unblock loop function */
2762 GST_QUEUE2_MUTEX_LOCK (queue);
2763 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2764 queue->srcresult = GST_FLOW_WRONG_STATE;
2765 queue->sinkresult = GST_FLOW_WRONG_STATE;
2766 /* the item add signal will unblock */
2767 GST_QUEUE2_SIGNAL_ADD (queue);
2768 GST_QUEUE2_MUTEX_UNLOCK (queue);
2770 /* step 2, make sure streaming finishes */
2771 result = gst_pad_stop_task (pad);
2774 gst_object_unref (queue);
2779 /* pull mode, downstream will call our getrange function */
2781 gst_queue2_src_activate_pull (GstPad * pad, gboolean active)
2786 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2789 GST_QUEUE2_MUTEX_LOCK (queue);
2790 if (!QUEUE_IS_USING_QUEUE (queue)) {
2791 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2792 /* open the temp file now */
2793 result = gst_queue2_open_temp_location_file (queue);
2794 } else if (!queue->ring_buffer) {
2795 queue->ring_buffer = g_malloc (queue->ring_buffer_max_size);
2796 result = !!queue->ring_buffer;
2801 GST_DEBUG_OBJECT (queue, "activating pull mode");
2802 init_ranges (queue);
2803 queue->srcresult = GST_FLOW_OK;
2804 queue->sinkresult = GST_FLOW_OK;
2805 queue->is_eos = FALSE;
2806 queue->unexpected = FALSE;
2807 queue->upstream_size = 0;
2808 GST_QUEUE2_MUTEX_UNLOCK (queue);
2810 GST_QUEUE2_MUTEX_LOCK (queue);
2811 GST_DEBUG_OBJECT (queue, "no temp file, cannot activate pull mode");
2812 /* this is not allowed, we cannot operate in pull mode without a temp
2814 queue->srcresult = GST_FLOW_WRONG_STATE;
2815 queue->sinkresult = GST_FLOW_WRONG_STATE;
2817 GST_QUEUE2_MUTEX_UNLOCK (queue);
2820 GST_QUEUE2_MUTEX_LOCK (queue);
2821 GST_DEBUG_OBJECT (queue, "deactivating pull mode");
2822 queue->srcresult = GST_FLOW_WRONG_STATE;
2823 queue->sinkresult = GST_FLOW_WRONG_STATE;
2824 /* this will unlock getrange */
2825 GST_QUEUE2_SIGNAL_ADD (queue);
2827 GST_QUEUE2_MUTEX_UNLOCK (queue);
2829 gst_object_unref (queue);
2834 static GstStateChangeReturn
2835 gst_queue2_change_state (GstElement * element, GstStateChange transition)
2838 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
2840 queue = GST_QUEUE2 (element);
2842 switch (transition) {
2843 case GST_STATE_CHANGE_NULL_TO_READY:
2845 case GST_STATE_CHANGE_READY_TO_PAUSED:
2846 GST_QUEUE2_MUTEX_LOCK (queue);
2847 if (!QUEUE_IS_USING_QUEUE (queue)) {
2848 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2849 if (!gst_queue2_open_temp_location_file (queue))
2850 ret = GST_STATE_CHANGE_FAILURE;
2852 if (queue->ring_buffer) {
2853 g_free (queue->ring_buffer);
2854 queue->ring_buffer = NULL;
2856 if (!(queue->ring_buffer = g_malloc (queue->ring_buffer_max_size)))
2857 ret = GST_STATE_CHANGE_FAILURE;
2859 init_ranges (queue);
2861 queue->segment_event_received = FALSE;
2862 queue->starting_segment = NULL;
2863 GST_QUEUE2_MUTEX_UNLOCK (queue);
2865 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2871 if (ret == GST_STATE_CHANGE_FAILURE)
2874 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2876 if (ret == GST_STATE_CHANGE_FAILURE)
2879 switch (transition) {
2880 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2882 case GST_STATE_CHANGE_PAUSED_TO_READY:
2883 GST_QUEUE2_MUTEX_LOCK (queue);
2884 if (!QUEUE_IS_USING_QUEUE (queue)) {
2885 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2886 gst_queue2_close_temp_location_file (queue);
2887 } else if (queue->ring_buffer) {
2888 g_free (queue->ring_buffer);
2889 queue->ring_buffer = NULL;
2891 clean_ranges (queue);
2893 if (queue->starting_segment != NULL) {
2894 gst_event_unref (queue->starting_segment);
2895 queue->starting_segment = NULL;
2897 GST_QUEUE2_MUTEX_UNLOCK (queue);
2899 case GST_STATE_CHANGE_READY_TO_NULL:
2908 /* changing the capacity of the queue must wake up
2909 * the _chain function, it might have more room now
2910 * to store the buffer/event in the queue */
2911 #define QUEUE_CAPACITY_CHANGE(q)\
2912 GST_QUEUE2_SIGNAL_DEL (queue);
2914 /* Changing the minimum required fill level must
2915 * wake up the _loop function as it might now
2916 * be able to preceed.
2918 #define QUEUE_THRESHOLD_CHANGE(q)\
2919 GST_QUEUE2_SIGNAL_ADD (queue);
2922 gst_queue2_set_temp_template (GstQueue2 * queue, const gchar * template)
2926 /* the element must be stopped in order to do this */
2927 GST_OBJECT_LOCK (queue);
2928 state = GST_STATE (queue);
2929 if (state != GST_STATE_READY && state != GST_STATE_NULL)
2931 GST_OBJECT_UNLOCK (queue);
2933 /* set new location */
2934 g_free (queue->temp_template);
2935 queue->temp_template = g_strdup (template);
2942 GST_WARNING_OBJECT (queue, "setting temp-template property in wrong state");
2943 GST_OBJECT_UNLOCK (queue);
2948 gst_queue2_set_property (GObject * object,
2949 guint prop_id, const GValue * value, GParamSpec * pspec)
2951 GstQueue2 *queue = GST_QUEUE2 (object);
2953 /* someone could change levels here, and since this
2954 * affects the get/put funcs, we need to lock for safety. */
2955 GST_QUEUE2_MUTEX_LOCK (queue);
2958 case PROP_MAX_SIZE_BYTES:
2959 queue->max_level.bytes = g_value_get_uint (value);
2960 QUEUE_CAPACITY_CHANGE (queue);
2962 case PROP_MAX_SIZE_BUFFERS:
2963 queue->max_level.buffers = g_value_get_uint (value);
2964 QUEUE_CAPACITY_CHANGE (queue);
2966 case PROP_MAX_SIZE_TIME:
2967 queue->max_level.time = g_value_get_uint64 (value);
2968 /* set rate_time to the same value. We use an extra field in the level
2969 * structure so that we can easily access and compare it */
2970 queue->max_level.rate_time = queue->max_level.time;
2971 QUEUE_CAPACITY_CHANGE (queue);
2973 case PROP_USE_BUFFERING:
2974 queue->use_buffering = g_value_get_boolean (value);
2976 case PROP_USE_RATE_ESTIMATE:
2977 queue->use_rate_estimate = g_value_get_boolean (value);
2979 case PROP_LOW_PERCENT:
2980 queue->low_percent = g_value_get_int (value);
2982 case PROP_HIGH_PERCENT:
2983 queue->high_percent = g_value_get_int (value);
2985 case PROP_TEMP_TEMPLATE:
2986 gst_queue2_set_temp_template (queue, g_value_get_string (value));
2988 case PROP_TEMP_LOCATION:
2989 g_free (queue->temp_location);
2990 queue->temp_location = g_value_dup_string (value);
2991 /* you can set the property back to NULL to make it use the temp-tmpl
2993 queue->temp_location_set = queue->temp_location != NULL;
2995 case PROP_TEMP_REMOVE:
2996 queue->temp_remove = g_value_get_boolean (value);
2998 case PROP_RING_BUFFER_MAX_SIZE:
2999 queue->ring_buffer_max_size = g_value_get_uint64 (value);
3002 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3006 GST_QUEUE2_MUTEX_UNLOCK (queue);
3010 gst_queue2_get_property (GObject * object,
3011 guint prop_id, GValue * value, GParamSpec * pspec)
3013 GstQueue2 *queue = GST_QUEUE2 (object);
3015 GST_QUEUE2_MUTEX_LOCK (queue);
3018 case PROP_CUR_LEVEL_BYTES:
3019 g_value_set_uint (value, queue->cur_level.bytes);
3021 case PROP_CUR_LEVEL_BUFFERS:
3022 g_value_set_uint (value, queue->cur_level.buffers);
3024 case PROP_CUR_LEVEL_TIME:
3025 g_value_set_uint64 (value, queue->cur_level.time);
3027 case PROP_MAX_SIZE_BYTES:
3028 g_value_set_uint (value, queue->max_level.bytes);
3030 case PROP_MAX_SIZE_BUFFERS:
3031 g_value_set_uint (value, queue->max_level.buffers);
3033 case PROP_MAX_SIZE_TIME:
3034 g_value_set_uint64 (value, queue->max_level.time);
3036 case PROP_USE_BUFFERING:
3037 g_value_set_boolean (value, queue->use_buffering);
3039 case PROP_USE_RATE_ESTIMATE:
3040 g_value_set_boolean (value, queue->use_rate_estimate);
3042 case PROP_LOW_PERCENT:
3043 g_value_set_int (value, queue->low_percent);
3045 case PROP_HIGH_PERCENT:
3046 g_value_set_int (value, queue->high_percent);
3048 case PROP_TEMP_TEMPLATE:
3049 g_value_set_string (value, queue->temp_template);
3051 case PROP_TEMP_LOCATION:
3052 g_value_set_string (value, queue->temp_location);
3054 case PROP_TEMP_REMOVE:
3055 g_value_set_boolean (value, queue->temp_remove);
3057 case PROP_RING_BUFFER_MAX_SIZE:
3058 g_value_set_uint64 (value, queue->ring_buffer_max_size);
3061 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3065 GST_QUEUE2_MUTEX_UNLOCK (queue);