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);
231 static gboolean gst_queue2_handle_sink_query (GstPad * pad, GstQuery * query);
233 static gboolean gst_queue2_handle_src_event (GstPad * pad, GstEvent * event);
234 static gboolean gst_queue2_handle_src_query (GstPad * pad, GstQuery * query);
235 static gboolean gst_queue2_handle_query (GstElement * element,
238 static GstCaps *gst_queue2_getcaps (GstPad * pad, GstCaps * filter);
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_query_function (queue->sinkpad,
383 GST_DEBUG_FUNCPTR (gst_queue2_handle_sink_query));
384 gst_pad_set_getcaps_function (queue->sinkpad,
385 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
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_event_function (queue->srcpad,
399 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_event));
400 gst_pad_set_query_function (queue->srcpad,
401 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_query));
402 gst_element_add_pad (GST_ELEMENT (queue), queue->srcpad);
405 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
406 queue->max_level.buffers = DEFAULT_MAX_SIZE_BUFFERS;
407 queue->max_level.bytes = DEFAULT_MAX_SIZE_BYTES;
408 queue->max_level.time = DEFAULT_MAX_SIZE_TIME;
409 queue->max_level.rate_time = DEFAULT_MAX_SIZE_TIME;
410 queue->use_buffering = DEFAULT_USE_BUFFERING;
411 queue->use_rate_estimate = DEFAULT_USE_RATE_ESTIMATE;
412 queue->low_percent = DEFAULT_LOW_PERCENT;
413 queue->high_percent = DEFAULT_HIGH_PERCENT;
415 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
416 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
418 queue->sinktime = GST_CLOCK_TIME_NONE;
419 queue->srctime = GST_CLOCK_TIME_NONE;
420 queue->sink_tainted = TRUE;
421 queue->src_tainted = TRUE;
423 queue->srcresult = GST_FLOW_WRONG_STATE;
424 queue->sinkresult = GST_FLOW_WRONG_STATE;
425 queue->is_eos = FALSE;
426 queue->in_timer = g_timer_new ();
427 queue->out_timer = g_timer_new ();
429 queue->qlock = g_mutex_new ();
430 queue->waiting_add = FALSE;
431 queue->item_add = g_cond_new ();
432 queue->waiting_del = FALSE;
433 queue->item_del = g_cond_new ();
434 g_queue_init (&queue->queue);
436 queue->buffering_percent = 100;
438 /* tempfile related */
439 queue->temp_template = NULL;
440 queue->temp_location = NULL;
441 queue->temp_location_set = FALSE;
442 queue->temp_remove = DEFAULT_TEMP_REMOVE;
444 queue->ring_buffer = NULL;
445 queue->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
447 GST_DEBUG_OBJECT (queue,
448 "initialized queue's not_empty & not_full conditions");
451 /* called only once, as opposed to dispose */
453 gst_queue2_finalize (GObject * object)
455 GstQueue2 *queue = GST_QUEUE2 (object);
457 GST_DEBUG_OBJECT (queue, "finalizing queue");
459 while (!g_queue_is_empty (&queue->queue)) {
460 GstMiniObject *data = g_queue_pop_head (&queue->queue);
462 gst_mini_object_unref (data);
465 g_queue_clear (&queue->queue);
466 g_mutex_free (queue->qlock);
467 g_cond_free (queue->item_add);
468 g_cond_free (queue->item_del);
469 g_timer_destroy (queue->in_timer);
470 g_timer_destroy (queue->out_timer);
472 /* temp_file path cleanup */
473 g_free (queue->temp_template);
474 g_free (queue->temp_location);
476 G_OBJECT_CLASS (parent_class)->finalize (object);
480 debug_ranges (GstQueue2 * queue)
482 GstQueue2Range *walk;
484 for (walk = queue->ranges; walk; walk = walk->next) {
485 GST_DEBUG_OBJECT (queue,
486 "range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "] (rb [%"
487 G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "]), reading %" G_GUINT64_FORMAT
488 " current range? %s", walk->offset, walk->writing_pos, walk->rb_offset,
489 walk->rb_writing_pos, walk->reading_pos,
490 walk == queue->current ? "**y**" : " n ");
494 /* clear all the downloaded ranges */
496 clean_ranges (GstQueue2 * queue)
498 GST_DEBUG_OBJECT (queue, "clean queue ranges");
500 g_slice_free_chain (GstQueue2Range, queue->ranges, next);
501 queue->ranges = NULL;
502 queue->current = NULL;
505 /* find a range that contains @offset or NULL when nothing does */
506 static GstQueue2Range *
507 find_range (GstQueue2 * queue, guint64 offset)
509 GstQueue2Range *range = NULL;
510 GstQueue2Range *walk;
512 /* first do a quick check for the current range */
513 for (walk = queue->ranges; walk; walk = walk->next) {
514 if (offset >= walk->offset && offset <= walk->writing_pos) {
515 /* we can reuse an existing range */
521 GST_DEBUG_OBJECT (queue,
522 "found range for %" G_GUINT64_FORMAT ": [%" G_GUINT64_FORMAT "-%"
523 G_GUINT64_FORMAT "]", offset, range->offset, range->writing_pos);
525 GST_DEBUG_OBJECT (queue, "no range for %" G_GUINT64_FORMAT, offset);
531 update_cur_level (GstQueue2 * queue, GstQueue2Range * range)
533 guint64 max_reading_pos, writing_pos;
535 writing_pos = range->writing_pos;
536 max_reading_pos = range->max_reading_pos;
538 if (writing_pos > max_reading_pos)
539 queue->cur_level.bytes = writing_pos - max_reading_pos;
541 queue->cur_level.bytes = 0;
544 /* make a new range for @offset or reuse an existing range */
545 static GstQueue2Range *
546 add_range (GstQueue2 * queue, guint64 offset)
548 GstQueue2Range *range, *prev, *next;
550 GST_DEBUG_OBJECT (queue, "find range for %" G_GUINT64_FORMAT, offset);
552 if ((range = find_range (queue, offset))) {
553 GST_DEBUG_OBJECT (queue,
554 "reusing range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, range->offset,
556 range->writing_pos = offset;
558 GST_DEBUG_OBJECT (queue,
559 "new range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, offset, offset);
561 range = g_slice_new0 (GstQueue2Range);
562 range->offset = offset;
563 /* we want to write to the next location in the ring buffer */
564 range->rb_offset = queue->current ? queue->current->rb_writing_pos : 0;
565 range->writing_pos = offset;
566 range->rb_writing_pos = range->rb_offset;
567 range->reading_pos = offset;
568 range->max_reading_pos = offset;
572 next = queue->ranges;
574 if (next->offset > offset) {
575 /* insert before next */
576 GST_DEBUG_OBJECT (queue,
577 "insert before range %p, offset %" G_GUINT64_FORMAT, next,
589 queue->ranges = range;
591 debug_ranges (queue);
593 /* update the stats for this range */
594 update_cur_level (queue, range);
600 /* clear and init the download ranges for offset 0 */
602 init_ranges (GstQueue2 * queue)
604 GST_DEBUG_OBJECT (queue, "init queue ranges");
606 /* get rid of all the current ranges */
607 clean_ranges (queue);
608 /* make a range for offset 0 */
609 queue->current = add_range (queue, 0);
613 gst_queue2_getcaps (GstPad * pad, GstCaps * filter)
619 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
620 if (G_UNLIKELY (queue == NULL))
621 return (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
623 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
624 result = gst_pad_peer_get_caps (otherpad, filter);
626 result = (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
628 gst_object_unref (queue);
633 /* calculate the diff between running time on the sink and src of the queue.
634 * This is the total amount of time in the queue. */
636 update_time_level (GstQueue2 * queue)
638 if (queue->sink_tainted) {
640 gst_segment_to_running_time (&queue->sink_segment, GST_FORMAT_TIME,
641 queue->sink_segment.position);
642 queue->sink_tainted = FALSE;
645 if (queue->src_tainted) {
647 gst_segment_to_running_time (&queue->src_segment, GST_FORMAT_TIME,
648 queue->src_segment.position);
649 queue->src_tainted = FALSE;
652 GST_DEBUG_OBJECT (queue, "sink %" GST_TIME_FORMAT ", src %" GST_TIME_FORMAT,
653 GST_TIME_ARGS (queue->sinktime), GST_TIME_ARGS (queue->srctime));
655 if (queue->sinktime != GST_CLOCK_TIME_NONE
656 && queue->srctime != GST_CLOCK_TIME_NONE
657 && queue->sinktime >= queue->srctime)
658 queue->cur_level.time = queue->sinktime - queue->srctime;
660 queue->cur_level.time = 0;
663 /* take a SEGMENT event and apply the values to segment, updating the time
666 apply_segment (GstQueue2 * queue, GstEvent * event, GstSegment * segment,
669 gst_event_copy_segment (event, segment);
671 if (segment->format == GST_FORMAT_BYTES) {
672 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
673 /* start is where we'll be getting from and as such writing next */
674 queue->current = add_range (queue, segment->start);
675 /* update the stats for this range */
676 update_cur_level (queue, queue->current);
680 /* now configure the values, we use these to track timestamps on the
682 if (segment->format != GST_FORMAT_TIME) {
683 /* non-time format, pretent the current time segment is closed with a
684 * 0 start and unknown stop time. */
685 segment->format = GST_FORMAT_TIME;
691 GST_DEBUG_OBJECT (queue, "configured SEGMENT %" GST_SEGMENT_FORMAT, segment);
694 queue->sink_tainted = TRUE;
696 queue->src_tainted = TRUE;
698 /* segment can update the time level of the queue */
699 update_time_level (queue);
702 /* take a buffer and update segment, updating the time level of the queue. */
704 apply_buffer (GstQueue2 * queue, GstBuffer * buffer, GstSegment * segment,
707 GstClockTime duration, timestamp;
709 timestamp = GST_BUFFER_TIMESTAMP (buffer);
710 duration = GST_BUFFER_DURATION (buffer);
712 /* if no timestamp is set, assume it's continuous with the previous
714 if (timestamp == GST_CLOCK_TIME_NONE)
715 timestamp = segment->position;
718 if (duration != GST_CLOCK_TIME_NONE)
719 timestamp += duration;
721 GST_DEBUG_OBJECT (queue, "position updated to %" GST_TIME_FORMAT,
722 GST_TIME_ARGS (timestamp));
724 segment->position = timestamp;
727 queue->sink_tainted = TRUE;
729 queue->src_tainted = TRUE;
731 /* calc diff with other end */
732 update_time_level (queue);
736 update_buffering (GstQueue2 * queue)
739 gboolean post = FALSE;
741 if (queue->high_percent <= 0)
744 #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)
747 /* on EOS we are always 100% full, we set the var here so that it we can
748 * reuse the logic below to stop buffering */
750 GST_LOG_OBJECT (queue, "we are EOS");
752 /* figure out the percent we are filled, we take the max of all formats. */
754 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
755 percent = GET_PERCENT (bytes, 0);
757 guint64 rb_size = queue->ring_buffer_max_size;
758 percent = GET_PERCENT (bytes, rb_size);
760 percent = MAX (percent, GET_PERCENT (time, 0));
761 percent = MAX (percent, GET_PERCENT (buffers, 0));
763 /* also apply the rate estimate when we need to */
764 if (queue->use_rate_estimate)
765 percent = MAX (percent, GET_PERCENT (rate_time, 0));
768 if (queue->is_buffering) {
770 /* if we were buffering see if we reached the high watermark */
771 if (percent >= queue->high_percent)
772 queue->is_buffering = FALSE;
774 /* we were not buffering, check if we need to start buffering if we drop
775 * below the low threshold */
776 if (percent < queue->low_percent) {
777 queue->is_buffering = TRUE;
778 queue->buffering_iteration++;
784 GstBufferingMode mode;
785 gint64 buffering_left = -1;
787 /* scale to high percent so that it becomes the 100% mark */
788 percent = percent * 100 / queue->high_percent;
793 if (percent != queue->buffering_percent) {
794 queue->buffering_percent = percent;
796 if (!QUEUE_IS_USING_QUEUE (queue)) {
799 if (QUEUE_IS_USING_RING_BUFFER (queue))
800 mode = GST_BUFFERING_TIMESHIFT;
802 mode = GST_BUFFERING_DOWNLOAD;
804 if (queue->byte_in_rate > 0) {
805 if (gst_pad_query_peer_duration (queue->sinkpad, GST_FORMAT_BYTES,
808 (gdouble) ((duration -
809 queue->current->writing_pos) * 1000) / queue->byte_in_rate;
812 buffering_left = G_MAXINT64;
815 mode = GST_BUFFERING_STREAM;
818 GST_DEBUG_OBJECT (queue, "buffering %d percent", (gint) percent);
819 message = gst_message_new_buffering (GST_OBJECT_CAST (queue),
821 gst_message_set_buffering_stats (message, mode,
822 queue->byte_in_rate, queue->byte_out_rate, buffering_left);
824 gst_element_post_message (GST_ELEMENT_CAST (queue), message);
827 GST_DEBUG_OBJECT (queue, "filled %d percent", (gint) percent);
834 reset_rate_timer (GstQueue2 * queue)
837 queue->bytes_out = 0;
838 queue->byte_in_rate = 0.0;
839 queue->byte_in_period = 0;
840 queue->byte_out_rate = 0.0;
841 queue->last_in_elapsed = 0.0;
842 queue->last_out_elapsed = 0.0;
843 queue->in_timer_started = FALSE;
844 queue->out_timer_started = FALSE;
847 /* the interval in seconds to recalculate the rate */
848 #define RATE_INTERVAL 0.2
849 /* Tuning for rate estimation. We use a large window for the input rate because
850 * it should be stable when connected to a network. The output rate is less
851 * stable (the elements preroll, queues behind a demuxer fill, ...) and should
852 * therefore adapt more quickly.
853 * However, initial input rate may be subject to a burst, and should therefore
854 * initially also adapt more quickly to changes, and only later on give higher
855 * weight to previous values. */
856 #define AVG_IN(avg,val,w1,w2) ((avg) * (w1) + (val) * (w2)) / ((w1) + (w2))
857 #define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
860 update_in_rates (GstQueue2 * queue)
862 gdouble elapsed, period;
863 gdouble byte_in_rate;
865 if (!queue->in_timer_started) {
866 queue->in_timer_started = TRUE;
867 g_timer_start (queue->in_timer);
871 elapsed = g_timer_elapsed (queue->in_timer, NULL);
873 /* recalc after each interval. */
874 if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
875 period = elapsed - queue->last_in_elapsed;
877 GST_DEBUG_OBJECT (queue,
878 "rates: period %f, in %" G_GUINT64_FORMAT ", global period %f",
879 period, queue->bytes_in, queue->byte_in_period);
881 byte_in_rate = queue->bytes_in / period;
883 if (queue->byte_in_rate == 0.0)
884 queue->byte_in_rate = byte_in_rate;
886 queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate,
887 (double) queue->byte_in_period, period);
889 /* another data point, cap at 16 for long time running average */
890 if (queue->byte_in_period < 16 * RATE_INTERVAL)
891 queue->byte_in_period += period;
893 /* reset the values to calculate rate over the next interval */
894 queue->last_in_elapsed = elapsed;
898 if (queue->byte_in_rate > 0.0) {
899 queue->cur_level.rate_time =
900 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
902 GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
903 queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
907 update_out_rates (GstQueue2 * queue)
909 gdouble elapsed, period;
910 gdouble byte_out_rate;
912 if (!queue->out_timer_started) {
913 queue->out_timer_started = TRUE;
914 g_timer_start (queue->out_timer);
918 elapsed = g_timer_elapsed (queue->out_timer, NULL);
920 /* recalc after each interval. */
921 if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
922 period = elapsed - queue->last_out_elapsed;
924 GST_DEBUG_OBJECT (queue,
925 "rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
927 byte_out_rate = queue->bytes_out / period;
929 if (queue->byte_out_rate == 0.0)
930 queue->byte_out_rate = byte_out_rate;
932 queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
934 /* reset the values to calculate rate over the next interval */
935 queue->last_out_elapsed = elapsed;
936 queue->bytes_out = 0;
938 if (queue->byte_in_rate > 0.0) {
939 queue->cur_level.rate_time =
940 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
942 GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
943 queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
947 update_cur_pos (GstQueue2 * queue, GstQueue2Range * range, guint64 pos)
949 guint64 reading_pos, max_reading_pos;
952 max_reading_pos = range->max_reading_pos;
954 max_reading_pos = MAX (max_reading_pos, reading_pos);
956 GST_DEBUG_OBJECT (queue,
957 "updating max_reading_pos from %" G_GUINT64_FORMAT " to %"
958 G_GUINT64_FORMAT, range->max_reading_pos, max_reading_pos);
959 range->max_reading_pos = max_reading_pos;
961 update_cur_level (queue, range);
965 perform_seek_to_offset (GstQueue2 * queue, guint64 offset)
970 GST_QUEUE2_MUTEX_UNLOCK (queue);
972 GST_DEBUG_OBJECT (queue, "Seeking to %" G_GUINT64_FORMAT, offset);
975 gst_event_new_seek (1.0, GST_FORMAT_BYTES,
976 GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
977 GST_SEEK_TYPE_NONE, -1);
979 res = gst_pad_push_event (queue->sinkpad, event);
980 GST_QUEUE2_MUTEX_LOCK (queue);
983 queue->current = add_range (queue, offset);
988 /* see if there is enough data in the file to read a full buffer */
990 gst_queue2_have_data (GstQueue2 * queue, guint64 offset, guint length)
992 GstQueue2Range *range;
994 GST_DEBUG_OBJECT (queue, "looking for offset %" G_GUINT64_FORMAT ", len %u",
997 if ((range = find_range (queue, offset))) {
998 if (queue->current != range) {
999 GST_DEBUG_OBJECT (queue, "switching ranges, do seek to range position");
1000 perform_seek_to_offset (queue, range->writing_pos);
1003 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1004 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1006 /* we have a range for offset */
1007 GST_DEBUG_OBJECT (queue,
1008 "we have a range %p, offset %" G_GUINT64_FORMAT ", writing_pos %"
1009 G_GUINT64_FORMAT, range, range->offset, range->writing_pos);
1011 if (!QUEUE_IS_USING_RING_BUFFER (queue) && queue->is_eos)
1014 if (offset + length <= range->writing_pos)
1017 GST_DEBUG_OBJECT (queue,
1018 "Need more data (%" G_GUINT64_FORMAT " bytes more)",
1019 (offset + length) - range->writing_pos);
1022 GST_INFO_OBJECT (queue, "not found in any range");
1023 /* we don't have the range, see how far away we are, FIXME, find a good
1024 * threshold based on the incoming rate. */
1025 if (!queue->is_eos && queue->current) {
1026 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1027 if (offset < queue->current->offset || offset >
1028 queue->current->writing_pos + QUEUE_MAX_BYTES (queue) -
1029 queue->cur_level.bytes) {
1030 perform_seek_to_offset (queue, offset);
1032 GST_INFO_OBJECT (queue,
1033 "requested data is within range, wait for data");
1035 } else if (offset < queue->current->writing_pos + 200000) {
1036 update_cur_pos (queue, queue->current, offset + length);
1037 GST_INFO_OBJECT (queue, "wait for data");
1042 /* too far away, do a seek */
1043 perform_seek_to_offset (queue, offset);
1050 #define FSEEK_FILE(file,offset) (fseeko (file, (off_t) offset, SEEK_SET) != 0)
1051 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1052 #define FSEEK_FILE(file,offset) (lseek (fileno (file), (off_t) offset, SEEK_SET) == (off_t) -1)
1054 #define FSEEK_FILE(file,offset) (fseek (file, offset, SEEK_SET) != 0)
1057 static GstFlowReturn
1058 gst_queue2_read_data_at_offset (GstQueue2 * queue, guint64 offset, guint length,
1059 guint8 * dst, gint64 * read_return)
1061 guint8 *ring_buffer;
1064 ring_buffer = queue->ring_buffer;
1066 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, offset))
1069 /* this should not block */
1070 GST_LOG_OBJECT (queue, "Reading %d bytes from offset %" G_GUINT64_FORMAT,
1072 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1073 res = fread (dst, 1, length, queue->temp_file);
1075 memcpy (dst, ring_buffer + offset, length);
1079 GST_LOG_OBJECT (queue, "read %" G_GSIZE_FORMAT " bytes", res);
1081 if (G_UNLIKELY (res < length)) {
1082 if (!QUEUE_IS_USING_TEMP_FILE (queue))
1083 goto could_not_read;
1084 /* check for errors or EOF */
1085 if (ferror (queue->temp_file))
1086 goto could_not_read;
1087 if (feof (queue->temp_file) && length > 0)
1097 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1098 return GST_FLOW_ERROR;
1102 GST_ELEMENT_ERROR (queue, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
1103 return GST_FLOW_ERROR;
1107 GST_DEBUG ("non-regular file hits EOS");
1108 return GST_FLOW_EOS;
1112 static GstFlowReturn
1113 gst_queue2_create_read (GstQueue2 * queue, guint64 offset, guint length,
1114 GstBuffer ** buffer)
1118 guint64 file_offset;
1119 guint block_length, remaining, read_length;
1122 GstFlowReturn ret = GST_FLOW_OK;
1124 /* allocate the output buffer of the requested size */
1125 buf = gst_buffer_new_allocate (NULL, length, 0);
1126 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
1128 GST_DEBUG_OBJECT (queue, "Reading %u bytes from %" G_GUINT64_FORMAT, length,
1132 rb_size = queue->ring_buffer_max_size;
1135 while (remaining > 0) {
1136 /* configure how much/whether to read */
1137 if (!gst_queue2_have_data (queue, rpos, remaining)) {
1140 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1143 /* calculate how far away the offset is */
1144 if (queue->current->writing_pos > rpos)
1145 level = queue->current->writing_pos - rpos;
1149 GST_DEBUG_OBJECT (queue,
1150 "reading %" G_GUINT64_FORMAT ", writing %" G_GUINT64_FORMAT
1151 ", level %" G_GUINT64_FORMAT,
1152 rpos, queue->current->writing_pos, level);
1154 if (level >= rb_size) {
1155 /* we don't have the data but if we have a ring buffer that is full, we
1157 GST_DEBUG_OBJECT (queue,
1158 "ring buffer full, reading ring-buffer-max-size %"
1159 G_GUINT64_FORMAT " bytes", rb_size);
1160 read_length = rb_size;
1161 } else if (queue->is_eos) {
1162 /* won't get any more data so read any data we have */
1164 GST_DEBUG_OBJECT (queue,
1165 "EOS hit but read %" G_GUINT64_FORMAT " bytes that we have",
1167 read_length = level;
1173 if (read_length == 0) {
1174 if (QUEUE_IS_USING_RING_BUFFER (queue)
1175 && queue->current->max_reading_pos > rpos) {
1176 /* protect cached data (data between offset and max_reading_pos)
1177 * and update current level */
1178 GST_DEBUG_OBJECT (queue,
1179 "protecting cached data [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1180 "]", rpos, queue->current->max_reading_pos);
1181 queue->current->max_reading_pos = rpos;
1182 update_cur_level (queue, queue->current);
1184 GST_DEBUG_OBJECT (queue, "waiting for add");
1185 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
1189 /* we have the requested data so read it */
1190 read_length = remaining;
1193 /* set range reading_pos to actual reading position for this read */
1194 queue->current->reading_pos = rpos;
1196 /* configure how much and from where to read */
1197 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1199 (queue->current->rb_offset + (rpos -
1200 queue->current->offset)) % rb_size;
1201 if (file_offset + read_length > rb_size) {
1202 block_length = rb_size - file_offset;
1204 block_length = read_length;
1208 block_length = read_length;
1211 /* while we still have data to read, we loop */
1212 while (read_length > 0) {
1216 gst_queue2_read_data_at_offset (queue, file_offset, block_length,
1217 data, &read_return);
1218 if (ret != GST_FLOW_OK)
1221 file_offset += read_return;
1222 if (QUEUE_IS_USING_RING_BUFFER (queue))
1223 file_offset %= rb_size;
1225 data += read_return;
1226 read_length -= read_return;
1227 block_length = read_length;
1228 remaining -= read_return;
1230 rpos = (queue->current->reading_pos += read_return);
1231 update_cur_pos (queue, queue->current, queue->current->reading_pos);
1233 GST_QUEUE2_SIGNAL_DEL (queue);
1234 GST_DEBUG_OBJECT (queue, "%u bytes left to read", remaining);
1237 gst_buffer_unmap (buf, data, length);
1239 GST_BUFFER_OFFSET (buf) = offset;
1240 GST_BUFFER_OFFSET_END (buf) = offset + length;
1249 GST_DEBUG_OBJECT (queue, "EOS hit and we don't have any requested data");
1250 gst_buffer_unref (buf);
1251 return GST_FLOW_EOS;
1255 GST_DEBUG_OBJECT (queue, "we are flushing");
1256 gst_buffer_unref (buf);
1257 return GST_FLOW_WRONG_STATE;
1261 GST_DEBUG_OBJECT (queue, "we have a read error");
1262 gst_buffer_unmap (buf, data, 0);
1263 gst_buffer_unref (buf);
1268 /* should be called with QUEUE_LOCK */
1269 static GstMiniObject *
1270 gst_queue2_read_item_from_file (GstQueue2 * queue)
1272 GstMiniObject *item;
1274 if (queue->starting_segment != NULL) {
1275 item = GST_MINI_OBJECT_CAST (queue->starting_segment);
1276 queue->starting_segment = NULL;
1280 guint64 reading_pos;
1282 reading_pos = queue->current->reading_pos;
1285 gst_queue2_create_read (queue, reading_pos, DEFAULT_BUFFER_SIZE,
1290 item = GST_MINI_OBJECT_CAST (buffer);
1293 item = GST_MINI_OBJECT_CAST (gst_event_new_eos ());
1303 /* must be called with MUTEX_LOCK. Will briefly release the lock when notifying
1304 * the temp filename. */
1306 gst_queue2_open_temp_location_file (GstQueue2 * queue)
1311 if (queue->temp_file)
1312 goto already_opened;
1314 GST_DEBUG_OBJECT (queue, "opening temp file %s", queue->temp_template);
1316 /* we have two cases:
1317 * - temp_location was set to something !NULL (Deprecated). in this case we
1318 * open the specified filename.
1319 * - temp_template was set, allocate a filename and open that filename
1321 if (!queue->temp_location_set) {
1323 if (queue->temp_template == NULL)
1326 /* make copy of the template, we don't want to change this */
1327 name = g_strdup (queue->temp_template);
1328 fd = g_mkstemp (name);
1330 goto mkstemp_failed;
1332 /* open the file for update/writing */
1333 queue->temp_file = fdopen (fd, "wb+");
1334 /* error creating file */
1335 if (queue->temp_file == NULL)
1338 g_free (queue->temp_location);
1339 queue->temp_location = name;
1341 GST_QUEUE2_MUTEX_UNLOCK (queue);
1343 /* we can't emit the notify with the lock */
1344 g_object_notify (G_OBJECT (queue), "temp-location");
1346 GST_QUEUE2_MUTEX_LOCK (queue);
1348 /* open the file for update/writing, this is deprecated but we still need to
1349 * support it for API/ABI compatibility */
1350 queue->temp_file = g_fopen (queue->temp_location, "wb+");
1351 /* error creating file */
1352 if (queue->temp_file == NULL)
1355 GST_DEBUG_OBJECT (queue, "opened temp file %s", queue->temp_template);
1362 GST_DEBUG_OBJECT (queue, "temp file was already open");
1367 GST_ELEMENT_ERROR (queue, RESOURCE, NOT_FOUND,
1368 (_("No Temp directory specified.")), (NULL));
1373 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1374 (_("Could not create temp file \"%s\"."), queue->temp_template),
1381 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1382 (_("Could not open file \"%s\" for reading."), name), GST_ERROR_SYSTEM);
1391 gst_queue2_close_temp_location_file (GstQueue2 * queue)
1394 if (queue->temp_file == NULL)
1397 GST_DEBUG_OBJECT (queue, "closing temp file");
1399 fflush (queue->temp_file);
1400 fclose (queue->temp_file);
1402 if (queue->temp_remove)
1403 remove (queue->temp_location);
1405 queue->temp_file = NULL;
1406 clean_ranges (queue);
1410 gst_queue2_flush_temp_file (GstQueue2 * queue)
1412 if (queue->temp_file == NULL)
1415 GST_DEBUG_OBJECT (queue, "flushing temp file");
1417 queue->temp_file = g_freopen (queue->temp_location, "wb+", queue->temp_file);
1421 gst_queue2_locked_flush (GstQueue2 * queue)
1423 if (!QUEUE_IS_USING_QUEUE (queue)) {
1424 if (QUEUE_IS_USING_TEMP_FILE (queue))
1425 gst_queue2_flush_temp_file (queue);
1426 init_ranges (queue);
1428 while (!g_queue_is_empty (&queue->queue)) {
1429 GstMiniObject *data = g_queue_pop_head (&queue->queue);
1431 /* Then lose another reference because we are supposed to destroy that
1432 data when flushing */
1433 gst_mini_object_unref (data);
1436 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1437 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
1438 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
1439 queue->sinktime = queue->srctime = GST_CLOCK_TIME_NONE;
1440 queue->sink_tainted = queue->src_tainted = TRUE;
1441 if (queue->starting_segment != NULL)
1442 gst_event_unref (queue->starting_segment);
1443 queue->starting_segment = NULL;
1444 queue->segment_event_received = FALSE;
1446 /* we deleted a lot of something */
1447 GST_QUEUE2_SIGNAL_DEL (queue);
1451 gst_queue2_wait_free_space (GstQueue2 * queue)
1453 /* We make space available if we're "full" according to whatever
1454 * the user defined as "full". */
1455 if (gst_queue2_is_filled (queue)) {
1458 /* pause the timer while we wait. The fact that we are waiting does not mean
1459 * the byterate on the input pad is lower */
1460 if ((started = queue->in_timer_started))
1461 g_timer_stop (queue->in_timer);
1463 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
1464 "queue is full, waiting for free space");
1466 /* Wait for space to be available, we could be unlocked because of a flush. */
1467 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1469 while (gst_queue2_is_filled (queue));
1471 /* and continue if we were running before */
1473 g_timer_continue (queue->in_timer);
1480 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "queue is flushing");
1486 gst_queue2_create_write (GstQueue2 * queue, GstBuffer * buffer)
1488 guint8 *odata, *data, *ring_buffer;
1489 guint size, rb_size;
1491 guint64 writing_pos, new_writing_pos;
1492 GstQueue2Range *range, *prev, *next;
1494 if (QUEUE_IS_USING_RING_BUFFER (queue))
1495 writing_pos = queue->current->rb_writing_pos;
1497 writing_pos = queue->current->writing_pos;
1498 ring_buffer = queue->ring_buffer;
1499 rb_size = queue->ring_buffer_max_size;
1501 odata = gst_buffer_map (buffer, &osize, NULL, GST_MAP_READ);
1506 GST_DEBUG_OBJECT (queue, "Writing %u bytes to %" G_GUINT64_FORMAT, size,
1507 GST_BUFFER_OFFSET (buffer));
1512 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1515 /* calculate the space in the ring buffer not used by data from
1516 * the current range */
1517 while (QUEUE_MAX_BYTES (queue) <= queue->cur_level.bytes) {
1518 /* wait until there is some free space */
1519 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1521 /* get the amount of space we have */
1522 space = QUEUE_MAX_BYTES (queue) - queue->cur_level.bytes;
1524 /* calculate if we need to split or if we can write the entire
1526 to_write = MIN (size, space);
1528 /* the writing position in the ring buffer after writing (part
1529 * or all of) the buffer */
1530 new_writing_pos = (writing_pos + to_write) % rb_size;
1533 range = queue->ranges;
1535 /* if we need to overwrite data in the ring buffer, we need to
1538 * warning: this code is complicated and includes some
1539 * simplifications - pen, paper and diagrams for the cases
1542 guint64 range_data_start, range_data_end;
1543 GstQueue2Range *range_to_destroy = NULL;
1545 range_data_start = range->rb_offset;
1546 range_data_end = range->rb_writing_pos;
1548 /* handle the special case where the range has no data in it */
1549 if (range->writing_pos == range->offset) {
1550 if (range != queue->current) {
1551 GST_DEBUG_OBJECT (queue,
1552 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1553 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1555 range_to_destroy = range;
1557 prev->next = range->next;
1562 if (range_data_end > range_data_start) {
1563 if (writing_pos >= range_data_end && new_writing_pos >= writing_pos)
1566 if (new_writing_pos > range_data_start) {
1567 if (new_writing_pos >= range_data_end) {
1568 GST_DEBUG_OBJECT (queue,
1569 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1570 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1572 range_to_destroy = range;
1574 prev->next = range->next;
1576 GST_DEBUG_OBJECT (queue,
1577 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1578 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1579 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1580 range->offset + new_writing_pos - range_data_start,
1582 range->offset += (new_writing_pos - range_data_start);
1583 range->rb_offset = new_writing_pos;
1587 guint64 new_wpos_virt = writing_pos + to_write;
1589 if (new_wpos_virt <= range_data_start)
1592 if (new_wpos_virt > rb_size && new_writing_pos >= range_data_end) {
1593 GST_DEBUG_OBJECT (queue,
1594 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1595 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1597 range_to_destroy = range;
1599 prev->next = range->next;
1601 GST_DEBUG_OBJECT (queue,
1602 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1603 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1604 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1605 range->offset + new_writing_pos - range_data_start,
1607 range->offset += (new_wpos_virt - range_data_start);
1608 range->rb_offset = new_writing_pos;
1613 if (!range_to_destroy)
1616 range = range->next;
1617 if (range_to_destroy) {
1618 if (range_to_destroy == queue->ranges)
1619 queue->ranges = range;
1620 g_slice_free (GstQueue2Range, range_to_destroy);
1621 range_to_destroy = NULL;
1626 new_writing_pos = writing_pos + to_write;
1629 if (QUEUE_IS_USING_TEMP_FILE (queue)
1630 && FSEEK_FILE (queue->temp_file, writing_pos))
1633 if (new_writing_pos > writing_pos) {
1634 GST_INFO_OBJECT (queue,
1635 "writing %u bytes to range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1636 "] (rb wpos %" G_GUINT64_FORMAT ")", to_write, queue->current->offset,
1637 queue->current->writing_pos, queue->current->rb_writing_pos);
1638 /* either not using ring buffer or no wrapping, just write */
1639 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1640 if (fwrite (data, to_write, 1, queue->temp_file) != 1)
1643 memcpy (ring_buffer + writing_pos, data, to_write);
1646 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
1647 /* try to merge with next range */
1648 while ((next = queue->current->next)) {
1649 GST_INFO_OBJECT (queue,
1650 "checking merge with next range %" G_GUINT64_FORMAT " < %"
1651 G_GUINT64_FORMAT, new_writing_pos, next->offset);
1652 if (new_writing_pos < next->offset)
1655 GST_DEBUG_OBJECT (queue, "merging ranges %" G_GUINT64_FORMAT,
1658 /* remove the group, we could choose to not read the data in this range
1659 * again. This would involve us doing a seek to the current writing position
1660 * in the range. FIXME, It would probably make sense to do a seek when there
1661 * is a lot of data in the range we merged with to avoid reading it all
1663 queue->current->next = next->next;
1664 g_slice_free (GstQueue2Range, next);
1666 debug_ranges (queue);
1668 goto update_and_signal;
1672 guint block_one, block_two;
1674 block_one = rb_size - writing_pos;
1675 block_two = to_write - block_one;
1677 if (block_one > 0) {
1678 GST_INFO_OBJECT (queue, "writing %u bytes", block_one);
1679 /* write data to end of ring buffer */
1680 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1681 if (fwrite (data, block_one, 1, queue->temp_file) != 1)
1684 memcpy (ring_buffer + writing_pos, data, block_one);
1688 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, 0))
1691 if (block_two > 0) {
1692 GST_INFO_OBJECT (queue, "writing %u bytes", block_two);
1693 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1694 if (fwrite (data + block_one, block_two, 1, queue->temp_file) != 1)
1697 memcpy (ring_buffer, data + block_one, block_two);
1703 /* update the writing positions */
1705 GST_INFO_OBJECT (queue,
1706 "wrote %u bytes to %" G_GUINT64_FORMAT " (%u bytes remaining to write)",
1707 to_write, writing_pos, size);
1709 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1711 queue->current->writing_pos += to_write;
1712 queue->current->rb_writing_pos = writing_pos = new_writing_pos;
1714 queue->current->writing_pos = writing_pos = new_writing_pos;
1716 update_cur_level (queue, queue->current);
1718 /* update the buffering status */
1719 if (queue->use_buffering)
1720 update_buffering (queue);
1722 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1723 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1725 GST_QUEUE2_SIGNAL_ADD (queue);
1728 gst_buffer_unmap (buffer, odata, osize);
1735 GST_DEBUG_OBJECT (queue, "we are flushing");
1736 gst_buffer_unmap (buffer, odata, osize);
1737 /* FIXME - GST_FLOW_EOS ? */
1742 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1743 gst_buffer_unmap (buffer, odata, osize);
1750 GST_ELEMENT_ERROR (queue, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
1754 GST_ELEMENT_ERROR (queue, RESOURCE, WRITE,
1755 (_("Error while writing to download file.")),
1756 ("%s", g_strerror (errno)));
1759 gst_buffer_unmap (buffer, odata, osize);
1764 /* enqueue an item an update the level stats */
1766 gst_queue2_locked_enqueue (GstQueue2 * queue, gpointer item, gboolean isbuffer)
1772 buffer = GST_BUFFER_CAST (item);
1773 size = gst_buffer_get_size (buffer);
1775 /* add buffer to the statistics */
1776 if (QUEUE_IS_USING_QUEUE (queue)) {
1777 queue->cur_level.buffers++;
1778 queue->cur_level.bytes += size;
1780 queue->bytes_in += size;
1782 /* apply new buffer to segment stats */
1783 apply_buffer (queue, buffer, &queue->sink_segment, TRUE);
1784 /* update the byterate stats */
1785 update_in_rates (queue);
1787 if (!QUEUE_IS_USING_QUEUE (queue)) {
1788 /* FIXME - check return value? */
1789 gst_queue2_create_write (queue, buffer);
1791 } else if (GST_IS_EVENT (item)) {
1794 event = GST_EVENT_CAST (item);
1796 switch (GST_EVENT_TYPE (event)) {
1798 /* Zero the thresholds, this makes sure the queue is completely
1799 * filled and we can read all data from the queue. */
1800 GST_DEBUG_OBJECT (queue, "we have EOS");
1801 queue->is_eos = TRUE;
1803 case GST_EVENT_SEGMENT:
1804 apply_segment (queue, event, &queue->sink_segment, TRUE);
1805 /* This is our first new segment, we hold it
1806 * as we can't save it on the temp file */
1807 if (!QUEUE_IS_USING_QUEUE (queue)) {
1808 if (queue->segment_event_received)
1809 goto unexpected_event;
1811 queue->segment_event_received = TRUE;
1812 if (queue->starting_segment != NULL)
1813 gst_event_unref (queue->starting_segment);
1814 queue->starting_segment = event;
1817 /* a new segment allows us to accept more buffers if we got EOS
1818 * from downstream */
1819 queue->unexpected = FALSE;
1822 if (!QUEUE_IS_USING_QUEUE (queue))
1823 goto unexpected_event;
1827 g_warning ("Unexpected item %p added in queue %s (refcounting problem?)",
1828 item, GST_OBJECT_NAME (queue));
1829 /* we can't really unref since we don't know what it is */
1834 /* update the buffering status */
1835 if (queue->use_buffering)
1836 update_buffering (queue);
1838 if (QUEUE_IS_USING_QUEUE (queue)) {
1839 g_queue_push_tail (&queue->queue, item);
1841 gst_mini_object_unref (GST_MINI_OBJECT_CAST (item));
1844 GST_QUEUE2_SIGNAL_ADD (queue);
1853 ("Unexpected event of kind %s can't be added in temp file of queue %s ",
1854 gst_event_type_get_name (GST_EVENT_TYPE (item)),
1855 GST_OBJECT_NAME (queue));
1856 gst_event_unref (GST_EVENT_CAST (item));
1861 /* dequeue an item from the queue and update level stats */
1862 static GstMiniObject *
1863 gst_queue2_locked_dequeue (GstQueue2 * queue, gboolean * is_buffer)
1865 GstMiniObject *item;
1867 if (!QUEUE_IS_USING_QUEUE (queue))
1868 item = gst_queue2_read_item_from_file (queue);
1870 item = g_queue_pop_head (&queue->queue);
1875 if (GST_IS_BUFFER (item)) {
1879 buffer = GST_BUFFER_CAST (item);
1880 size = gst_buffer_get_size (buffer);
1883 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1884 "retrieved buffer %p from queue", buffer);
1886 if (QUEUE_IS_USING_QUEUE (queue)) {
1887 queue->cur_level.buffers--;
1888 queue->cur_level.bytes -= size;
1890 queue->bytes_out += size;
1892 apply_buffer (queue, buffer, &queue->src_segment, FALSE);
1893 /* update the byterate stats */
1894 update_out_rates (queue);
1895 /* update the buffering */
1896 if (queue->use_buffering)
1897 update_buffering (queue);
1899 } else if (GST_IS_EVENT (item)) {
1900 GstEvent *event = GST_EVENT_CAST (item);
1904 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1905 "retrieved event %p from queue", event);
1907 switch (GST_EVENT_TYPE (event)) {
1909 /* queue is empty now that we dequeued the EOS */
1910 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1912 case GST_EVENT_SEGMENT:
1913 apply_segment (queue, event, &queue->src_segment, FALSE);
1920 ("Unexpected item %p dequeued from queue %s (refcounting problem?)",
1921 item, GST_OBJECT_NAME (queue));
1924 GST_QUEUE2_SIGNAL_DEL (queue);
1931 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "the queue is empty");
1937 gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event)
1941 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
1943 switch (GST_EVENT_TYPE (event)) {
1944 case GST_EVENT_FLUSH_START:
1946 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush start event");
1947 if (QUEUE_IS_USING_QUEUE (queue)) {
1949 gst_pad_push_event (queue->srcpad, event);
1951 /* now unblock the chain function */
1952 GST_QUEUE2_MUTEX_LOCK (queue);
1953 queue->srcresult = GST_FLOW_WRONG_STATE;
1954 queue->sinkresult = GST_FLOW_WRONG_STATE;
1955 /* unblock the loop and chain functions */
1956 GST_QUEUE2_SIGNAL_ADD (queue);
1957 GST_QUEUE2_SIGNAL_DEL (queue);
1958 GST_QUEUE2_MUTEX_UNLOCK (queue);
1960 /* make sure it pauses, this should happen since we sent
1961 * flush_start downstream. */
1962 gst_pad_pause_task (queue->srcpad);
1963 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "loop stopped");
1965 GST_QUEUE2_MUTEX_LOCK (queue);
1966 /* flush the sink pad */
1967 queue->sinkresult = GST_FLOW_WRONG_STATE;
1968 GST_QUEUE2_SIGNAL_DEL (queue);
1969 GST_QUEUE2_MUTEX_UNLOCK (queue);
1971 gst_event_unref (event);
1975 case GST_EVENT_FLUSH_STOP:
1977 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush stop event");
1979 if (QUEUE_IS_USING_QUEUE (queue)) {
1981 gst_pad_push_event (queue->srcpad, event);
1983 GST_QUEUE2_MUTEX_LOCK (queue);
1984 gst_queue2_locked_flush (queue);
1985 queue->srcresult = GST_FLOW_OK;
1986 queue->sinkresult = GST_FLOW_OK;
1987 queue->is_eos = FALSE;
1988 queue->unexpected = FALSE;
1989 /* reset rate counters */
1990 reset_rate_timer (queue);
1991 gst_pad_start_task (queue->srcpad, (GstTaskFunction) gst_queue2_loop,
1993 GST_QUEUE2_MUTEX_UNLOCK (queue);
1995 GST_QUEUE2_MUTEX_LOCK (queue);
1996 queue->segment_event_received = FALSE;
1997 queue->is_eos = FALSE;
1998 queue->unexpected = FALSE;
1999 queue->sinkresult = GST_FLOW_OK;
2000 GST_QUEUE2_MUTEX_UNLOCK (queue);
2002 gst_event_unref (event);
2007 if (GST_EVENT_IS_SERIALIZED (event)) {
2008 /* serialized events go in the queue */
2009 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2010 /* refuse more events on EOS */
2013 gst_queue2_locked_enqueue (queue, event, FALSE);
2014 GST_QUEUE2_MUTEX_UNLOCK (queue);
2016 /* non-serialized events are passed upstream. */
2017 gst_pad_push_event (queue->srcpad, event);
2027 GST_DEBUG_OBJECT (queue, "refusing event, we are flushing");
2028 GST_QUEUE2_MUTEX_UNLOCK (queue);
2029 gst_event_unref (event);
2034 GST_DEBUG_OBJECT (queue, "refusing event, we are EOS");
2035 GST_QUEUE2_MUTEX_UNLOCK (queue);
2036 gst_event_unref (event);
2042 gst_queue2_handle_sink_query (GstPad * pad, GstQuery * query)
2047 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2048 if (G_UNLIKELY (queue == NULL))
2051 switch (GST_QUERY_TYPE (query)) {
2053 res = gst_pad_peer_query (queue->srcpad, query);
2056 gst_object_unref (queue);
2062 gst_queue2_is_empty (GstQueue2 * queue)
2064 /* never empty on EOS */
2068 if (!QUEUE_IS_USING_QUEUE (queue) && queue->current) {
2069 return queue->current->writing_pos <= queue->current->max_reading_pos;
2071 if (queue->queue.length == 0)
2079 gst_queue2_is_filled (GstQueue2 * queue)
2083 /* always filled on EOS */
2087 #define CHECK_FILLED(format,alt_max) ((queue->max_level.format) > 0 && \
2088 (queue->cur_level.format) >= ((alt_max) ? \
2089 MIN ((queue->max_level.format), (alt_max)) : (queue->max_level.format)))
2091 /* if using a ring buffer we're filled if all ring buffer space is used
2092 * _by the current range_ */
2093 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
2094 guint64 rb_size = queue->ring_buffer_max_size;
2095 GST_DEBUG_OBJECT (queue,
2096 "max bytes %u, rb size %" G_GUINT64_FORMAT ", cur bytes %u",
2097 queue->max_level.bytes, rb_size, queue->cur_level.bytes);
2098 return CHECK_FILLED (bytes, rb_size);
2101 /* if using file, we're never filled if we don't have EOS */
2102 if (QUEUE_IS_USING_TEMP_FILE (queue))
2105 /* we are never filled when we have no buffers at all */
2106 if (queue->cur_level.buffers == 0)
2109 /* we are filled if one of the current levels exceeds the max */
2110 res = CHECK_FILLED (buffers, 0) || CHECK_FILLED (bytes, 0)
2111 || CHECK_FILLED (time, 0);
2113 /* if we need to, use the rate estimate to check against the max time we are
2114 * allowed to queue */
2115 if (queue->use_rate_estimate)
2116 res |= CHECK_FILLED (rate_time, 0);
2122 static GstFlowReturn
2123 gst_queue2_chain (GstPad * pad, GstBuffer * buffer)
2127 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
2129 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received buffer %p of size %"
2130 G_GSIZE_FORMAT ", time %" GST_TIME_FORMAT ", duration %"
2131 GST_TIME_FORMAT, buffer, gst_buffer_get_size (buffer),
2132 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
2133 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
2135 /* we have to lock the queue since we span threads */
2136 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2137 /* when we received EOS, we refuse more data */
2140 /* when we received unexpected from downstream, refuse more buffers */
2141 if (queue->unexpected)
2142 goto out_unexpected;
2144 if (!gst_queue2_wait_free_space (queue))
2147 /* put buffer in queue now */
2148 gst_queue2_locked_enqueue (queue, buffer, TRUE);
2149 GST_QUEUE2_MUTEX_UNLOCK (queue);
2153 /* special conditions */
2156 GstFlowReturn ret = queue->sinkresult;
2158 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2159 "exit because task paused, reason: %s", gst_flow_get_name (ret));
2160 GST_QUEUE2_MUTEX_UNLOCK (queue);
2161 gst_buffer_unref (buffer);
2167 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2168 GST_QUEUE2_MUTEX_UNLOCK (queue);
2169 gst_buffer_unref (buffer);
2171 return GST_FLOW_EOS;
2175 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2176 GST_QUEUE2_MUTEX_UNLOCK (queue);
2177 gst_buffer_unref (buffer);
2179 return GST_FLOW_EOS;
2183 /* dequeue an item from the queue an push it downstream. This functions returns
2184 * the result of the push. */
2185 static GstFlowReturn
2186 gst_queue2_push_one (GstQueue2 * queue)
2188 GstFlowReturn result = GST_FLOW_OK;
2189 GstMiniObject *data;
2190 gboolean is_buffer = FALSE;
2192 data = gst_queue2_locked_dequeue (queue, &is_buffer);
2197 GST_QUEUE2_MUTEX_UNLOCK (queue);
2205 buffer = GST_BUFFER_CAST (data);
2207 caps = GST_BUFFER_CAPS (buffer);
2211 /* set caps before pushing the buffer so that core does not try to do
2212 * something fancy to check if this is possible. */
2213 if (caps && caps != GST_PAD_CAPS (queue->srcpad))
2214 gst_pad_set_caps (queue->srcpad, caps);
2217 result = gst_pad_push (queue->srcpad, buffer);
2219 /* need to check for srcresult here as well */
2220 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2221 if (result == GST_FLOW_EOS) {
2222 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "got EOS from downstream");
2223 /* stop pushing buffers, we dequeue all items until we see an item that we
2224 * can push again, which is EOS or SEGMENT. If there is nothing in the
2225 * queue we can push, we set a flag to make the sinkpad refuse more
2226 * buffers with an EOS return value until we receive something
2227 * pushable again or we get flushed. */
2228 while ((data = gst_queue2_locked_dequeue (queue, &is_buffer))) {
2230 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2231 "dropping EOS buffer %p", data);
2232 gst_buffer_unref (GST_BUFFER_CAST (data));
2233 } else if (GST_IS_EVENT (data)) {
2234 GstEvent *event = GST_EVENT_CAST (data);
2235 GstEventType type = GST_EVENT_TYPE (event);
2237 if (type == GST_EVENT_EOS || type == GST_EVENT_SEGMENT) {
2238 /* we found a pushable item in the queue, push it out */
2239 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2240 "pushing pushable event %s after EOS",
2241 GST_EVENT_TYPE_NAME (event));
2244 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2245 "dropping EOS event %p", event);
2246 gst_event_unref (event);
2249 /* no more items in the queue. Set the unexpected flag so that upstream
2250 * make us refuse any more buffers on the sinkpad. Since we will still
2251 * accept EOS and SEGMENT we return _FLOW_OK to the caller so that the
2252 * task function does not shut down. */
2253 queue->unexpected = TRUE;
2254 result = GST_FLOW_OK;
2256 } else if (GST_IS_EVENT (data)) {
2257 GstEvent *event = GST_EVENT_CAST (data);
2258 GstEventType type = GST_EVENT_TYPE (event);
2260 gst_pad_push_event (queue->srcpad, event);
2262 /* if we're EOS, return EOS so that the task pauses. */
2263 if (type == GST_EVENT_EOS) {
2264 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2265 "pushed EOS event %p, return EOS", event);
2266 result = GST_FLOW_EOS;
2269 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2276 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2277 "exit because we have no item in the queue");
2278 return GST_FLOW_ERROR;
2282 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we are flushing");
2283 return GST_FLOW_WRONG_STATE;
2287 /* called repeatedly with @pad as the source pad. This function should push out
2288 * data to the peer element. */
2290 gst_queue2_loop (GstPad * pad)
2295 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2297 /* have to lock for thread-safety */
2298 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2300 if (gst_queue2_is_empty (queue)) {
2303 /* pause the timer while we wait. The fact that we are waiting does not mean
2304 * the byterate on the output pad is lower */
2305 if ((started = queue->out_timer_started))
2306 g_timer_stop (queue->out_timer);
2308 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
2309 "queue is empty, waiting for new data");
2311 /* Wait for data to be available, we could be unlocked because of a flush. */
2312 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
2314 while (gst_queue2_is_empty (queue));
2316 /* and continue if we were running before */
2318 g_timer_continue (queue->out_timer);
2320 ret = gst_queue2_push_one (queue);
2321 queue->srcresult = ret;
2322 queue->sinkresult = ret;
2323 if (ret != GST_FLOW_OK)
2326 GST_QUEUE2_MUTEX_UNLOCK (queue);
2333 gboolean eos = queue->is_eos;
2334 GstFlowReturn ret = queue->srcresult;
2336 gst_pad_pause_task (queue->srcpad);
2337 GST_QUEUE2_MUTEX_UNLOCK (queue);
2338 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2339 "pause task, reason: %s", gst_flow_get_name (queue->srcresult));
2340 /* let app know about us giving up if upstream is not expected to do so */
2341 /* EOS is already taken care of elsewhere */
2342 if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS)) {
2343 GST_ELEMENT_ERROR (queue, STREAM, FAILED,
2344 (_("Internal data flow error.")),
2345 ("streaming task paused, reason %s (%d)",
2346 gst_flow_get_name (ret), ret));
2347 gst_pad_push_event (queue->srcpad, gst_event_new_eos ());
2354 gst_queue2_handle_src_event (GstPad * pad, GstEvent * event)
2356 gboolean res = TRUE;
2357 GstQueue2 *queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2359 if (G_UNLIKELY (queue == NULL)) {
2360 gst_event_unref (event);
2363 #ifndef GST_DISABLE_GST_DEBUG
2364 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "got event %p (%s)",
2365 event, GST_EVENT_TYPE_NAME (event));
2368 switch (GST_EVENT_TYPE (event)) {
2369 case GST_EVENT_FLUSH_START:
2370 if (QUEUE_IS_USING_QUEUE (queue)) {
2371 /* just forward upstream */
2372 res = gst_pad_push_event (queue->sinkpad, event);
2374 /* now unblock the getrange function */
2375 GST_QUEUE2_MUTEX_LOCK (queue);
2376 GST_DEBUG_OBJECT (queue, "flushing");
2377 queue->srcresult = GST_FLOW_WRONG_STATE;
2378 GST_QUEUE2_SIGNAL_ADD (queue);
2379 GST_QUEUE2_MUTEX_UNLOCK (queue);
2381 /* when using a temp file, we eat the event */
2383 gst_event_unref (event);
2386 case GST_EVENT_FLUSH_STOP:
2387 if (QUEUE_IS_USING_QUEUE (queue)) {
2388 /* just forward upstream */
2389 res = gst_pad_push_event (queue->sinkpad, event);
2391 /* now unblock the getrange function */
2392 GST_QUEUE2_MUTEX_LOCK (queue);
2393 queue->srcresult = GST_FLOW_OK;
2394 if (queue->current) {
2395 /* forget the highest read offset, we'll calculate a new one when we
2396 * get the next getrange request. We need to do this in order to reset
2397 * the buffering percentage */
2398 queue->current->max_reading_pos = 0;
2400 GST_QUEUE2_MUTEX_UNLOCK (queue);
2402 /* when using a temp file, we eat the event */
2404 gst_event_unref (event);
2408 res = gst_pad_push_event (queue->sinkpad, event);
2412 gst_object_unref (queue);
2417 gst_queue2_handle_src_query (GstPad * pad, GstQuery * query)
2421 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2422 if (G_UNLIKELY (queue == NULL))
2425 switch (GST_QUERY_TYPE (query)) {
2426 case GST_QUERY_POSITION:
2431 if (!gst_pad_peer_query (queue->sinkpad, query))
2434 /* get peer position */
2435 gst_query_parse_position (query, &format, &peer_pos);
2437 /* FIXME: this code assumes that there's no discont in the queue */
2439 case GST_FORMAT_BYTES:
2440 peer_pos -= queue->cur_level.bytes;
2442 case GST_FORMAT_TIME:
2443 peer_pos -= queue->cur_level.time;
2446 GST_WARNING_OBJECT (queue, "dropping query in %s format, don't "
2447 "know how to adjust value", gst_format_get_name (format));
2450 /* set updated position */
2451 gst_query_set_position (query, format, peer_pos);
2454 case GST_QUERY_DURATION:
2456 GST_DEBUG_OBJECT (queue, "doing peer query");
2458 if (!gst_pad_peer_query (queue->sinkpad, query))
2461 GST_DEBUG_OBJECT (queue, "peer query success");
2464 case GST_QUERY_BUFFERING:
2468 GST_DEBUG_OBJECT (queue, "query buffering");
2470 /* FIXME - is this condition correct? what should ring buffer do? */
2471 if (QUEUE_IS_USING_QUEUE (queue)) {
2472 /* no temp file, just forward to the peer */
2473 if (!gst_pad_peer_query (queue->sinkpad, query))
2475 GST_DEBUG_OBJECT (queue, "buffering forwarded to peer");
2477 gint64 start, stop, range_start, range_stop;
2478 guint64 writing_pos;
2480 gint64 estimated_total, buffering_left;
2482 gboolean peer_res, is_buffering, is_eos;
2483 gdouble byte_in_rate, byte_out_rate;
2484 GstQueue2Range *queued_ranges;
2486 /* we need a current download region */
2487 if (queue->current == NULL)
2490 writing_pos = queue->current->writing_pos;
2491 byte_in_rate = queue->byte_in_rate;
2492 byte_out_rate = queue->byte_out_rate;
2493 is_buffering = queue->is_buffering;
2494 is_eos = queue->is_eos;
2495 percent = queue->buffering_percent;
2498 /* we're EOS, we know the duration in bytes now */
2500 duration = writing_pos;
2502 /* get duration of upstream in bytes */
2503 peer_res = gst_pad_query_peer_duration (queue->sinkpad,
2504 GST_FORMAT_BYTES, &duration);
2507 /* calculate remaining and total download time */
2508 if (peer_res && byte_in_rate > 0.0) {
2509 estimated_total = (duration * 1000) / byte_in_rate;
2510 buffering_left = ((duration - writing_pos) * 1000) / byte_in_rate;
2512 estimated_total = -1;
2513 buffering_left = -1;
2515 GST_DEBUG_OBJECT (queue, "estimated %" G_GINT64_FORMAT ", left %"
2516 G_GINT64_FORMAT, estimated_total, buffering_left);
2518 gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
2521 case GST_FORMAT_PERCENT:
2522 /* we need duration */
2526 GST_DEBUG_OBJECT (queue,
2527 "duration %" G_GINT64_FORMAT ", writing %" G_GINT64_FORMAT,
2528 duration, writing_pos);
2531 /* get our available data relative to the duration */
2533 stop = GST_FORMAT_PERCENT_MAX * writing_pos / duration;
2537 case GST_FORMAT_BYTES:
2547 /* fill out the buffered ranges */
2548 for (queued_ranges = queue->ranges; queued_ranges;
2549 queued_ranges = queued_ranges->next) {
2551 case GST_FORMAT_PERCENT:
2552 if (duration == -1) {
2557 range_start = 100 * queued_ranges->offset / duration;
2558 range_stop = 100 * queued_ranges->writing_pos / duration;
2560 case GST_FORMAT_BYTES:
2561 range_start = queued_ranges->offset;
2562 range_stop = queued_ranges->writing_pos;
2569 if (range_start == range_stop)
2571 GST_DEBUG_OBJECT (queue,
2572 "range starting at %" G_GINT64_FORMAT " and finishing at %"
2573 G_GINT64_FORMAT, range_start, range_stop);
2574 gst_query_add_buffering_range (query, range_start, range_stop);
2577 gst_query_set_buffering_percent (query, is_buffering, percent);
2578 gst_query_set_buffering_range (query, format, start, stop,
2580 gst_query_set_buffering_stats (query, GST_BUFFERING_DOWNLOAD,
2581 byte_in_rate, byte_out_rate, buffering_left);
2585 case GST_QUERY_SCHEDULING:
2589 /* we can operate in pull mode when we are using a tempfile */
2590 pull_mode = !QUEUE_IS_USING_QUEUE (queue);
2592 gst_query_set_scheduling (query, pull_mode, pull_mode, FALSE, 0, -1, 1);
2596 /* peer handled other queries */
2597 if (!gst_pad_peer_query (queue->sinkpad, query))
2602 gst_object_unref (queue);
2608 GST_DEBUG_OBJECT (queue, "failed peer query");
2609 gst_object_unref (queue);
2615 gst_queue2_handle_query (GstElement * element, GstQuery * query)
2617 /* simply forward to the srcpad query function */
2618 return gst_queue2_handle_src_query (GST_QUEUE2_CAST (element)->srcpad, query);
2622 gst_queue2_update_upstream_size (GstQueue2 * queue)
2624 gint64 upstream_size = -1;
2626 if (gst_pad_query_peer_duration (queue->sinkpad, GST_FORMAT_BYTES,
2628 GST_INFO_OBJECT (queue, "upstream size: %" G_GINT64_FORMAT, upstream_size);
2629 queue->upstream_size = upstream_size;
2633 static GstFlowReturn
2634 gst_queue2_get_range (GstPad * pad, guint64 offset, guint length,
2635 GstBuffer ** buffer)
2640 queue = GST_QUEUE2_CAST (gst_pad_get_parent (pad));
2642 length = (length == -1) ? DEFAULT_BUFFER_SIZE : length;
2643 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2644 offset = (offset == -1) ? queue->current->reading_pos : offset;
2646 GST_DEBUG_OBJECT (queue,
2647 "Getting range: offset %" G_GUINT64_FORMAT ", length %u", offset, length);
2649 /* catch any reads beyond the size of the file here to make sure queue2
2650 * doesn't send seek events beyond the size of the file upstream, since
2651 * that would confuse elements such as souphttpsrc and/or http servers.
2652 * Demuxers often just loop until EOS at the end of the file to figure out
2653 * when they've read all the end-headers or index chunks. */
2654 if (G_UNLIKELY (offset >= queue->upstream_size)) {
2655 gst_queue2_update_upstream_size (queue);
2656 if (queue->upstream_size > 0 && offset >= queue->upstream_size)
2657 goto out_unexpected;
2660 if (G_UNLIKELY (offset + length > queue->upstream_size)) {
2661 gst_queue2_update_upstream_size (queue);
2662 if (queue->upstream_size > 0 && offset + length >= queue->upstream_size) {
2663 length = queue->upstream_size - offset;
2664 GST_DEBUG_OBJECT (queue, "adjusting length downto %d", length);
2668 /* FIXME - function will block when the range is not yet available */
2669 ret = gst_queue2_create_read (queue, offset, length, buffer);
2670 GST_QUEUE2_MUTEX_UNLOCK (queue);
2672 gst_object_unref (queue);
2679 ret = queue->srcresult;
2681 GST_DEBUG_OBJECT (queue, "we are flushing");
2682 GST_QUEUE2_MUTEX_UNLOCK (queue);
2683 gst_object_unref (queue);
2688 GST_DEBUG_OBJECT (queue, "read beyond end of file");
2689 GST_QUEUE2_MUTEX_UNLOCK (queue);
2690 gst_object_unref (queue);
2691 return GST_FLOW_EOS;
2695 /* sink currently only operates in push mode */
2697 gst_queue2_sink_activate_push (GstPad * pad, gboolean active)
2699 gboolean result = TRUE;
2702 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2705 GST_QUEUE2_MUTEX_LOCK (queue);
2706 GST_DEBUG_OBJECT (queue, "activating push mode");
2707 queue->srcresult = GST_FLOW_OK;
2708 queue->sinkresult = GST_FLOW_OK;
2709 queue->is_eos = FALSE;
2710 queue->unexpected = FALSE;
2711 reset_rate_timer (queue);
2712 GST_QUEUE2_MUTEX_UNLOCK (queue);
2714 /* unblock chain function */
2715 GST_QUEUE2_MUTEX_LOCK (queue);
2716 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2717 queue->srcresult = GST_FLOW_WRONG_STATE;
2718 queue->sinkresult = GST_FLOW_WRONG_STATE;
2719 gst_queue2_locked_flush (queue);
2720 GST_QUEUE2_MUTEX_UNLOCK (queue);
2723 gst_object_unref (queue);
2728 /* src operating in push mode, we start a task on the source pad that pushes out
2729 * buffers from the queue */
2731 gst_queue2_src_activate_push (GstPad * pad, gboolean active)
2733 gboolean result = FALSE;
2736 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2739 GST_QUEUE2_MUTEX_LOCK (queue);
2740 GST_DEBUG_OBJECT (queue, "activating push mode");
2741 queue->srcresult = GST_FLOW_OK;
2742 queue->sinkresult = GST_FLOW_OK;
2743 queue->is_eos = FALSE;
2744 queue->unexpected = FALSE;
2745 result = gst_pad_start_task (pad, (GstTaskFunction) gst_queue2_loop, pad);
2746 GST_QUEUE2_MUTEX_UNLOCK (queue);
2748 /* unblock loop function */
2749 GST_QUEUE2_MUTEX_LOCK (queue);
2750 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2751 queue->srcresult = GST_FLOW_WRONG_STATE;
2752 queue->sinkresult = GST_FLOW_WRONG_STATE;
2753 /* the item add signal will unblock */
2754 GST_QUEUE2_SIGNAL_ADD (queue);
2755 GST_QUEUE2_MUTEX_UNLOCK (queue);
2757 /* step 2, make sure streaming finishes */
2758 result = gst_pad_stop_task (pad);
2761 gst_object_unref (queue);
2766 /* pull mode, downstream will call our getrange function */
2768 gst_queue2_src_activate_pull (GstPad * pad, gboolean active)
2773 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2776 GST_QUEUE2_MUTEX_LOCK (queue);
2777 if (!QUEUE_IS_USING_QUEUE (queue)) {
2778 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2779 /* open the temp file now */
2780 result = gst_queue2_open_temp_location_file (queue);
2781 } else if (!queue->ring_buffer) {
2782 queue->ring_buffer = g_malloc (queue->ring_buffer_max_size);
2783 result = ! !queue->ring_buffer;
2788 GST_DEBUG_OBJECT (queue, "activating pull mode");
2789 init_ranges (queue);
2790 queue->srcresult = GST_FLOW_OK;
2791 queue->sinkresult = GST_FLOW_OK;
2792 queue->is_eos = FALSE;
2793 queue->unexpected = FALSE;
2794 queue->upstream_size = 0;
2796 GST_DEBUG_OBJECT (queue, "no temp file, cannot activate pull mode");
2797 /* this is not allowed, we cannot operate in pull mode without a temp
2799 queue->srcresult = GST_FLOW_WRONG_STATE;
2800 queue->sinkresult = GST_FLOW_WRONG_STATE;
2803 GST_QUEUE2_MUTEX_UNLOCK (queue);
2805 GST_QUEUE2_MUTEX_LOCK (queue);
2806 GST_DEBUG_OBJECT (queue, "deactivating pull mode");
2807 queue->srcresult = GST_FLOW_WRONG_STATE;
2808 queue->sinkresult = GST_FLOW_WRONG_STATE;
2809 /* this will unlock getrange */
2810 GST_QUEUE2_SIGNAL_ADD (queue);
2812 GST_QUEUE2_MUTEX_UNLOCK (queue);
2814 gst_object_unref (queue);
2819 static GstStateChangeReturn
2820 gst_queue2_change_state (GstElement * element, GstStateChange transition)
2823 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
2825 queue = GST_QUEUE2 (element);
2827 switch (transition) {
2828 case GST_STATE_CHANGE_NULL_TO_READY:
2830 case GST_STATE_CHANGE_READY_TO_PAUSED:
2831 GST_QUEUE2_MUTEX_LOCK (queue);
2832 if (!QUEUE_IS_USING_QUEUE (queue)) {
2833 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2834 if (!gst_queue2_open_temp_location_file (queue))
2835 ret = GST_STATE_CHANGE_FAILURE;
2837 if (queue->ring_buffer) {
2838 g_free (queue->ring_buffer);
2839 queue->ring_buffer = NULL;
2841 if (!(queue->ring_buffer = g_malloc (queue->ring_buffer_max_size)))
2842 ret = GST_STATE_CHANGE_FAILURE;
2844 init_ranges (queue);
2846 queue->segment_event_received = FALSE;
2847 queue->starting_segment = NULL;
2848 GST_QUEUE2_MUTEX_UNLOCK (queue);
2850 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2856 if (ret == GST_STATE_CHANGE_FAILURE)
2859 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2861 if (ret == GST_STATE_CHANGE_FAILURE)
2864 switch (transition) {
2865 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2867 case GST_STATE_CHANGE_PAUSED_TO_READY:
2868 GST_QUEUE2_MUTEX_LOCK (queue);
2869 if (!QUEUE_IS_USING_QUEUE (queue)) {
2870 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2871 gst_queue2_close_temp_location_file (queue);
2872 } else if (queue->ring_buffer) {
2873 g_free (queue->ring_buffer);
2874 queue->ring_buffer = NULL;
2876 clean_ranges (queue);
2878 if (queue->starting_segment != NULL) {
2879 gst_event_unref (queue->starting_segment);
2880 queue->starting_segment = NULL;
2882 GST_QUEUE2_MUTEX_UNLOCK (queue);
2884 case GST_STATE_CHANGE_READY_TO_NULL:
2893 /* changing the capacity of the queue must wake up
2894 * the _chain function, it might have more room now
2895 * to store the buffer/event in the queue */
2896 #define QUEUE_CAPACITY_CHANGE(q)\
2897 GST_QUEUE2_SIGNAL_DEL (queue);
2899 /* Changing the minimum required fill level must
2900 * wake up the _loop function as it might now
2901 * be able to preceed.
2903 #define QUEUE_THRESHOLD_CHANGE(q)\
2904 GST_QUEUE2_SIGNAL_ADD (queue);
2907 gst_queue2_set_temp_template (GstQueue2 * queue, const gchar * template)
2911 /* the element must be stopped in order to do this */
2912 GST_OBJECT_LOCK (queue);
2913 state = GST_STATE (queue);
2914 if (state != GST_STATE_READY && state != GST_STATE_NULL)
2916 GST_OBJECT_UNLOCK (queue);
2918 /* set new location */
2919 g_free (queue->temp_template);
2920 queue->temp_template = g_strdup (template);
2927 GST_WARNING_OBJECT (queue, "setting temp-template property in wrong state");
2928 GST_OBJECT_UNLOCK (queue);
2933 gst_queue2_set_property (GObject * object,
2934 guint prop_id, const GValue * value, GParamSpec * pspec)
2936 GstQueue2 *queue = GST_QUEUE2 (object);
2938 /* someone could change levels here, and since this
2939 * affects the get/put funcs, we need to lock for safety. */
2940 GST_QUEUE2_MUTEX_LOCK (queue);
2943 case PROP_MAX_SIZE_BYTES:
2944 queue->max_level.bytes = g_value_get_uint (value);
2945 QUEUE_CAPACITY_CHANGE (queue);
2947 case PROP_MAX_SIZE_BUFFERS:
2948 queue->max_level.buffers = g_value_get_uint (value);
2949 QUEUE_CAPACITY_CHANGE (queue);
2951 case PROP_MAX_SIZE_TIME:
2952 queue->max_level.time = g_value_get_uint64 (value);
2953 /* set rate_time to the same value. We use an extra field in the level
2954 * structure so that we can easily access and compare it */
2955 queue->max_level.rate_time = queue->max_level.time;
2956 QUEUE_CAPACITY_CHANGE (queue);
2958 case PROP_USE_BUFFERING:
2959 queue->use_buffering = g_value_get_boolean (value);
2961 case PROP_USE_RATE_ESTIMATE:
2962 queue->use_rate_estimate = g_value_get_boolean (value);
2964 case PROP_LOW_PERCENT:
2965 queue->low_percent = g_value_get_int (value);
2967 case PROP_HIGH_PERCENT:
2968 queue->high_percent = g_value_get_int (value);
2970 case PROP_TEMP_TEMPLATE:
2971 gst_queue2_set_temp_template (queue, g_value_get_string (value));
2973 case PROP_TEMP_LOCATION:
2974 g_free (queue->temp_location);
2975 queue->temp_location = g_value_dup_string (value);
2976 /* you can set the property back to NULL to make it use the temp-tmpl
2978 queue->temp_location_set = queue->temp_location != NULL;
2980 case PROP_TEMP_REMOVE:
2981 queue->temp_remove = g_value_get_boolean (value);
2983 case PROP_RING_BUFFER_MAX_SIZE:
2984 queue->ring_buffer_max_size = g_value_get_uint64 (value);
2987 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2991 GST_QUEUE2_MUTEX_UNLOCK (queue);
2995 gst_queue2_get_property (GObject * object,
2996 guint prop_id, GValue * value, GParamSpec * pspec)
2998 GstQueue2 *queue = GST_QUEUE2 (object);
3000 GST_QUEUE2_MUTEX_LOCK (queue);
3003 case PROP_CUR_LEVEL_BYTES:
3004 g_value_set_uint (value, queue->cur_level.bytes);
3006 case PROP_CUR_LEVEL_BUFFERS:
3007 g_value_set_uint (value, queue->cur_level.buffers);
3009 case PROP_CUR_LEVEL_TIME:
3010 g_value_set_uint64 (value, queue->cur_level.time);
3012 case PROP_MAX_SIZE_BYTES:
3013 g_value_set_uint (value, queue->max_level.bytes);
3015 case PROP_MAX_SIZE_BUFFERS:
3016 g_value_set_uint (value, queue->max_level.buffers);
3018 case PROP_MAX_SIZE_TIME:
3019 g_value_set_uint64 (value, queue->max_level.time);
3021 case PROP_USE_BUFFERING:
3022 g_value_set_boolean (value, queue->use_buffering);
3024 case PROP_USE_RATE_ESTIMATE:
3025 g_value_set_boolean (value, queue->use_rate_estimate);
3027 case PROP_LOW_PERCENT:
3028 g_value_set_int (value, queue->low_percent);
3030 case PROP_HIGH_PERCENT:
3031 g_value_set_int (value, queue->high_percent);
3033 case PROP_TEMP_TEMPLATE:
3034 g_value_set_string (value, queue->temp_template);
3036 case PROP_TEMP_LOCATION:
3037 g_value_set_string (value, queue->temp_location);
3039 case PROP_TEMP_REMOVE:
3040 g_value_set_boolean (value, queue->temp_remove);
3042 case PROP_RING_BUFFER_MAX_SIZE:
3043 g_value_set_uint64 (value, queue->ring_buffer_max_size);
3046 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3050 GST_QUEUE2_MUTEX_UNLOCK (queue);