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);
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);
242 static gboolean gst_queue2_src_checkgetrange_function (GstPad * pad);
244 static gboolean gst_queue2_src_activate_pull (GstPad * pad, gboolean active);
245 static gboolean gst_queue2_src_activate_push (GstPad * pad, gboolean active);
246 static gboolean gst_queue2_sink_activate_push (GstPad * pad, gboolean active);
247 static GstStateChangeReturn gst_queue2_change_state (GstElement * element,
248 GstStateChange transition);
250 static gboolean gst_queue2_is_empty (GstQueue2 * queue);
251 static gboolean gst_queue2_is_filled (GstQueue2 * queue);
253 static void update_cur_level (GstQueue2 * queue, GstQueue2Range * range);
255 /* static guint gst_queue2_signals[LAST_SIGNAL] = { 0 }; */
258 gst_queue2_class_init (GstQueue2Class * klass)
260 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
261 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
263 gobject_class->set_property = gst_queue2_set_property;
264 gobject_class->get_property = gst_queue2_get_property;
267 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BYTES,
268 g_param_spec_uint ("current-level-bytes", "Current level (kB)",
269 "Current amount of data in the queue (bytes)",
270 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
271 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BUFFERS,
272 g_param_spec_uint ("current-level-buffers", "Current level (buffers)",
273 "Current number of buffers in the queue",
274 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
275 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_TIME,
276 g_param_spec_uint64 ("current-level-time", "Current level (ns)",
277 "Current amount of data in the queue (in ns)",
278 0, G_MAXUINT64, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
280 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BYTES,
281 g_param_spec_uint ("max-size-bytes", "Max. size (kB)",
282 "Max. amount of data in the queue (bytes, 0=disable)",
283 0, G_MAXUINT, DEFAULT_MAX_SIZE_BYTES,
284 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
285 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BUFFERS,
286 g_param_spec_uint ("max-size-buffers", "Max. size (buffers)",
287 "Max. number of buffers in the queue (0=disable)", 0, G_MAXUINT,
288 DEFAULT_MAX_SIZE_BUFFERS,
289 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
290 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_TIME,
291 g_param_spec_uint64 ("max-size-time", "Max. size (ns)",
292 "Max. amount of data in the queue (in ns, 0=disable)", 0, G_MAXUINT64,
293 DEFAULT_MAX_SIZE_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
295 g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
296 g_param_spec_boolean ("use-buffering", "Use buffering",
297 "Emit GST_MESSAGE_BUFFERING based on low-/high-percent thresholds",
298 DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
299 g_object_class_install_property (gobject_class, PROP_USE_RATE_ESTIMATE,
300 g_param_spec_boolean ("use-rate-estimate", "Use Rate Estimate",
301 "Estimate the bitrate of the stream to calculate time level",
302 DEFAULT_USE_RATE_ESTIMATE,
303 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
304 g_object_class_install_property (gobject_class, PROP_LOW_PERCENT,
305 g_param_spec_int ("low-percent", "Low percent",
306 "Low threshold for buffering to start. Only used if use-buffering is True",
307 0, 100, DEFAULT_LOW_PERCENT,
308 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
309 g_object_class_install_property (gobject_class, PROP_HIGH_PERCENT,
310 g_param_spec_int ("high-percent", "High percent",
311 "High threshold for buffering to finish. Only used if use-buffering is True",
312 0, 100, DEFAULT_HIGH_PERCENT,
313 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
315 g_object_class_install_property (gobject_class, PROP_TEMP_TEMPLATE,
316 g_param_spec_string ("temp-template", "Temporary File Template",
317 "File template to store temporary files in, should contain directory "
318 "and XXXXXX. (NULL == disabled)",
319 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
321 g_object_class_install_property (gobject_class, PROP_TEMP_LOCATION,
322 g_param_spec_string ("temp-location", "Temporary File Location",
323 "Location to store temporary files in (Deprecated: Only read this "
324 "property, use temp-template to configure the name template)",
325 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
328 * GstQueue2:temp-remove
330 * When temp-template is set, remove the temporary file when going to READY.
334 g_object_class_install_property (gobject_class, PROP_TEMP_REMOVE,
335 g_param_spec_boolean ("temp-remove", "Remove the Temporary File",
336 "Remove the temp-location after use",
337 DEFAULT_TEMP_REMOVE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
340 * GstQueue2:ring-buffer-max-size
342 * The maximum size of the ring buffer in bytes. If set to 0, the ring
343 * buffer is disabled. Default 0.
347 g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
348 g_param_spec_uint64 ("ring-buffer-max-size",
349 "Max. ring buffer size (bytes)",
350 "Max. amount of data in the ring buffer (bytes, 0 = disabled)",
351 0, G_MAXUINT64, DEFAULT_RING_BUFFER_MAX_SIZE,
352 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
354 /* set several parent class virtual functions */
355 gobject_class->finalize = gst_queue2_finalize;
357 gst_element_class_add_pad_template (gstelement_class,
358 gst_static_pad_template_get (&srctemplate));
359 gst_element_class_add_pad_template (gstelement_class,
360 gst_static_pad_template_get (&sinktemplate));
362 gst_element_class_set_details_simple (gstelement_class, "Queue 2",
365 "Erik Walthinsen <omega@cse.ogi.edu>, "
366 "Wim Taymans <wim.taymans@gmail.com>");
368 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_queue2_change_state);
369 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_queue2_handle_query);
373 gst_queue2_init (GstQueue2 * queue)
375 queue->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
377 gst_pad_set_chain_function (queue->sinkpad,
378 GST_DEBUG_FUNCPTR (gst_queue2_chain));
379 gst_pad_set_activatepush_function (queue->sinkpad,
380 GST_DEBUG_FUNCPTR (gst_queue2_sink_activate_push));
381 gst_pad_set_event_function (queue->sinkpad,
382 GST_DEBUG_FUNCPTR (gst_queue2_handle_sink_event));
383 gst_pad_set_getcaps_function (queue->sinkpad,
384 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
385 gst_pad_set_acceptcaps_function (queue->sinkpad,
386 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
387 gst_element_add_pad (GST_ELEMENT (queue), queue->sinkpad);
389 queue->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
391 gst_pad_set_activatepull_function (queue->srcpad,
392 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_pull));
393 gst_pad_set_activatepush_function (queue->srcpad,
394 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_push));
395 gst_pad_set_getrange_function (queue->srcpad,
396 GST_DEBUG_FUNCPTR (gst_queue2_get_range));
397 gst_pad_set_checkgetrange_function (queue->srcpad,
398 GST_DEBUG_FUNCPTR (gst_queue2_src_checkgetrange_function));
399 gst_pad_set_getcaps_function (queue->srcpad,
400 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
401 gst_pad_set_acceptcaps_function (queue->srcpad,
402 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
403 gst_pad_set_event_function (queue->srcpad,
404 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_event));
405 gst_pad_set_query_function (queue->srcpad,
406 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_query));
407 gst_element_add_pad (GST_ELEMENT (queue), queue->srcpad);
410 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
411 queue->max_level.buffers = DEFAULT_MAX_SIZE_BUFFERS;
412 queue->max_level.bytes = DEFAULT_MAX_SIZE_BYTES;
413 queue->max_level.time = DEFAULT_MAX_SIZE_TIME;
414 queue->max_level.rate_time = DEFAULT_MAX_SIZE_TIME;
415 queue->use_buffering = DEFAULT_USE_BUFFERING;
416 queue->use_rate_estimate = DEFAULT_USE_RATE_ESTIMATE;
417 queue->low_percent = DEFAULT_LOW_PERCENT;
418 queue->high_percent = DEFAULT_HIGH_PERCENT;
420 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
421 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
423 queue->sinktime = GST_CLOCK_TIME_NONE;
424 queue->srctime = GST_CLOCK_TIME_NONE;
425 queue->sink_tainted = TRUE;
426 queue->src_tainted = TRUE;
428 queue->srcresult = GST_FLOW_WRONG_STATE;
429 queue->sinkresult = GST_FLOW_WRONG_STATE;
430 queue->is_eos = FALSE;
431 queue->in_timer = g_timer_new ();
432 queue->out_timer = g_timer_new ();
434 queue->qlock = g_mutex_new ();
435 queue->waiting_add = FALSE;
436 queue->item_add = g_cond_new ();
437 queue->waiting_del = FALSE;
438 queue->item_del = g_cond_new ();
439 queue->queue = g_queue_new ();
441 queue->buffering_percent = 100;
443 /* tempfile related */
444 queue->temp_template = NULL;
445 queue->temp_location = NULL;
446 queue->temp_location_set = FALSE;
447 queue->temp_remove = DEFAULT_TEMP_REMOVE;
449 queue->ring_buffer = NULL;
450 queue->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
452 GST_DEBUG_OBJECT (queue,
453 "initialized queue's not_empty & not_full conditions");
456 /* called only once, as opposed to dispose */
458 gst_queue2_finalize (GObject * object)
460 GstQueue2 *queue = GST_QUEUE2 (object);
462 GST_DEBUG_OBJECT (queue, "finalizing queue");
464 while (!g_queue_is_empty (queue->queue)) {
465 GstMiniObject *data = g_queue_pop_head (queue->queue);
467 gst_mini_object_unref (data);
470 g_queue_free (queue->queue);
471 g_mutex_free (queue->qlock);
472 g_cond_free (queue->item_add);
473 g_cond_free (queue->item_del);
474 g_timer_destroy (queue->in_timer);
475 g_timer_destroy (queue->out_timer);
477 /* temp_file path cleanup */
478 g_free (queue->temp_template);
479 g_free (queue->temp_location);
481 G_OBJECT_CLASS (parent_class)->finalize (object);
485 debug_ranges (GstQueue2 * queue)
487 GstQueue2Range *walk;
489 for (walk = queue->ranges; walk; walk = walk->next) {
490 GST_DEBUG_OBJECT (queue,
491 "range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "] (rb [%"
492 G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "]), reading %" G_GUINT64_FORMAT
493 " current range? %s", walk->offset, walk->writing_pos, walk->rb_offset,
494 walk->rb_writing_pos, walk->reading_pos,
495 walk == queue->current ? "**y**" : " n ");
499 /* clear all the downloaded ranges */
501 clean_ranges (GstQueue2 * queue)
503 GST_DEBUG_OBJECT (queue, "clean queue ranges");
505 g_slice_free_chain (GstQueue2Range, queue->ranges, next);
506 queue->ranges = NULL;
507 queue->current = NULL;
510 /* find a range that contains @offset or NULL when nothing does */
511 static GstQueue2Range *
512 find_range (GstQueue2 * queue, guint64 offset)
514 GstQueue2Range *range = NULL;
515 GstQueue2Range *walk;
517 /* first do a quick check for the current range */
518 for (walk = queue->ranges; walk; walk = walk->next) {
519 if (offset >= walk->offset && offset <= walk->writing_pos) {
520 /* we can reuse an existing range */
526 GST_DEBUG_OBJECT (queue,
527 "found range for %" G_GUINT64_FORMAT ": [%" G_GUINT64_FORMAT "-%"
528 G_GUINT64_FORMAT "]", offset, range->offset, range->writing_pos);
530 GST_DEBUG_OBJECT (queue, "no range for %" G_GUINT64_FORMAT, offset);
536 update_cur_level (GstQueue2 * queue, GstQueue2Range * range)
538 guint64 max_reading_pos, writing_pos;
540 writing_pos = range->writing_pos;
541 max_reading_pos = range->max_reading_pos;
543 if (writing_pos > max_reading_pos)
544 queue->cur_level.bytes = writing_pos - max_reading_pos;
546 queue->cur_level.bytes = 0;
549 /* make a new range for @offset or reuse an existing range */
550 static GstQueue2Range *
551 add_range (GstQueue2 * queue, guint64 offset)
553 GstQueue2Range *range, *prev, *next;
555 GST_DEBUG_OBJECT (queue, "find range for %" G_GUINT64_FORMAT, offset);
557 if ((range = find_range (queue, offset))) {
558 GST_DEBUG_OBJECT (queue,
559 "reusing range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, range->offset,
561 range->writing_pos = offset;
563 GST_DEBUG_OBJECT (queue,
564 "new range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, offset, offset);
566 range = g_slice_new0 (GstQueue2Range);
567 range->offset = offset;
568 /* we want to write to the next location in the ring buffer */
569 range->rb_offset = queue->current ? queue->current->rb_writing_pos : 0;
570 range->writing_pos = offset;
571 range->rb_writing_pos = range->rb_offset;
572 range->reading_pos = offset;
573 range->max_reading_pos = offset;
577 next = queue->ranges;
579 if (next->offset > offset) {
580 /* insert before next */
581 GST_DEBUG_OBJECT (queue,
582 "insert before range %p, offset %" G_GUINT64_FORMAT, next,
594 queue->ranges = range;
596 debug_ranges (queue);
598 /* update the stats for this range */
599 update_cur_level (queue, range);
605 /* clear and init the download ranges for offset 0 */
607 init_ranges (GstQueue2 * queue)
609 GST_DEBUG_OBJECT (queue, "init queue ranges");
611 /* get rid of all the current ranges */
612 clean_ranges (queue);
613 /* make a range for offset 0 */
614 queue->current = add_range (queue, 0);
618 gst_queue2_acceptcaps (GstPad * pad, GstCaps * caps)
624 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
626 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
627 result = gst_pad_peer_accept_caps (otherpad, caps);
633 gst_queue2_getcaps (GstPad * pad)
639 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
640 if (G_UNLIKELY (queue == NULL))
641 return gst_caps_new_any ();
643 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
644 result = gst_pad_peer_get_caps (otherpad);
646 result = gst_caps_new_any ();
648 gst_object_unref (queue);
653 /* calculate the diff between running time on the sink and src of the queue.
654 * This is the total amount of time in the queue. */
656 update_time_level (GstQueue2 * queue)
658 if (queue->sink_tainted) {
660 gst_segment_to_running_time (&queue->sink_segment, GST_FORMAT_TIME,
661 queue->sink_segment.position);
662 queue->sink_tainted = FALSE;
665 if (queue->src_tainted) {
667 gst_segment_to_running_time (&queue->src_segment, GST_FORMAT_TIME,
668 queue->src_segment.position);
669 queue->src_tainted = FALSE;
672 GST_DEBUG_OBJECT (queue, "sink %" GST_TIME_FORMAT ", src %" GST_TIME_FORMAT,
673 GST_TIME_ARGS (queue->sinktime), GST_TIME_ARGS (queue->srctime));
675 if (queue->sinktime != GST_CLOCK_TIME_NONE
676 && queue->srctime != GST_CLOCK_TIME_NONE
677 && queue->sinktime >= queue->srctime)
678 queue->cur_level.time = queue->sinktime - queue->srctime;
680 queue->cur_level.time = 0;
683 /* take a SEGMENT event and apply the values to segment, updating the time
686 apply_segment (GstQueue2 * queue, GstEvent * event, GstSegment * segment,
689 gst_event_parse_segment (event, segment);
691 if (segment->format == GST_FORMAT_BYTES) {
692 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
693 /* start is where we'll be getting from and as such writing next */
694 queue->current = add_range (queue, segment->start);
695 /* update the stats for this range */
696 update_cur_level (queue, queue->current);
700 /* now configure the values, we use these to track timestamps on the
702 if (segment->format != GST_FORMAT_TIME) {
703 /* non-time format, pretent the current time segment is closed with a
704 * 0 start and unknown stop time. */
705 segment->format = GST_FORMAT_TIME;
711 GST_DEBUG_OBJECT (queue, "configured SEGMENT %" GST_SEGMENT_FORMAT, segment);
714 queue->sink_tainted = TRUE;
716 queue->src_tainted = TRUE;
718 /* segment can update the time level of the queue */
719 update_time_level (queue);
722 /* take a buffer and update segment, updating the time level of the queue. */
724 apply_buffer (GstQueue2 * queue, GstBuffer * buffer, GstSegment * segment,
727 GstClockTime duration, timestamp;
729 timestamp = GST_BUFFER_TIMESTAMP (buffer);
730 duration = GST_BUFFER_DURATION (buffer);
732 /* if no timestamp is set, assume it's continuous with the previous
734 if (timestamp == GST_CLOCK_TIME_NONE)
735 timestamp = segment->position;
738 if (duration != GST_CLOCK_TIME_NONE)
739 timestamp += duration;
741 GST_DEBUG_OBJECT (queue, "position updated to %" GST_TIME_FORMAT,
742 GST_TIME_ARGS (timestamp));
744 segment->position = timestamp;
747 queue->sink_tainted = TRUE;
749 queue->src_tainted = TRUE;
751 /* calc diff with other end */
752 update_time_level (queue);
756 update_buffering (GstQueue2 * queue)
759 gboolean post = FALSE;
761 if (queue->high_percent <= 0)
764 #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)
767 /* on EOS we are always 100% full, we set the var here so that it we can
768 * reuse the logic below to stop buffering */
770 GST_LOG_OBJECT (queue, "we are EOS");
772 /* figure out the percent we are filled, we take the max of all formats. */
774 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
775 percent = GET_PERCENT (bytes, 0);
777 guint64 rb_size = queue->ring_buffer_max_size;
778 percent = GET_PERCENT (bytes, rb_size);
780 percent = MAX (percent, GET_PERCENT (time, 0));
781 percent = MAX (percent, GET_PERCENT (buffers, 0));
783 /* also apply the rate estimate when we need to */
784 if (queue->use_rate_estimate)
785 percent = MAX (percent, GET_PERCENT (rate_time, 0));
788 if (queue->is_buffering) {
790 /* if we were buffering see if we reached the high watermark */
791 if (percent >= queue->high_percent)
792 queue->is_buffering = FALSE;
794 /* we were not buffering, check if we need to start buffering if we drop
795 * below the low threshold */
796 if (percent < queue->low_percent) {
797 queue->is_buffering = TRUE;
798 queue->buffering_iteration++;
804 GstBufferingMode mode;
805 gint64 buffering_left = -1;
807 /* scale to high percent so that it becomes the 100% mark */
808 percent = percent * 100 / queue->high_percent;
813 if (percent != queue->buffering_percent) {
814 queue->buffering_percent = percent;
816 if (!QUEUE_IS_USING_QUEUE (queue)) {
817 GstFormat fmt = GST_FORMAT_BYTES;
820 if (QUEUE_IS_USING_RING_BUFFER (queue))
821 mode = GST_BUFFERING_TIMESHIFT;
823 mode = GST_BUFFERING_DOWNLOAD;
825 if (queue->byte_in_rate > 0) {
826 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &duration))
828 (gdouble) ((duration -
829 queue->current->writing_pos) * 1000) / queue->byte_in_rate;
831 buffering_left = G_MAXINT64;
834 mode = GST_BUFFERING_STREAM;
837 GST_DEBUG_OBJECT (queue, "buffering %d percent", (gint) percent);
838 message = gst_message_new_buffering (GST_OBJECT_CAST (queue),
840 gst_message_set_buffering_stats (message, mode,
841 queue->byte_in_rate, queue->byte_out_rate, buffering_left);
843 gst_element_post_message (GST_ELEMENT_CAST (queue), message);
846 GST_DEBUG_OBJECT (queue, "filled %d percent", (gint) percent);
853 reset_rate_timer (GstQueue2 * queue)
856 queue->bytes_out = 0;
857 queue->byte_in_rate = 0.0;
858 queue->byte_out_rate = 0.0;
859 queue->last_in_elapsed = 0.0;
860 queue->last_out_elapsed = 0.0;
861 queue->in_timer_started = FALSE;
862 queue->out_timer_started = FALSE;
865 /* the interval in seconds to recalculate the rate */
866 #define RATE_INTERVAL 0.2
867 /* Tuning for rate estimation. We use a large window for the input rate because
868 * it should be stable when connected to a network. The output rate is less
869 * stable (the elements preroll, queues behind a demuxer fill, ...) and should
870 * therefore adapt more quickly. */
871 #define AVG_IN(avg,val) ((avg) * 15.0 + (val)) / 16.0
872 #define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
875 update_in_rates (GstQueue2 * queue)
877 gdouble elapsed, period;
878 gdouble byte_in_rate;
880 if (!queue->in_timer_started) {
881 queue->in_timer_started = TRUE;
882 g_timer_start (queue->in_timer);
886 elapsed = g_timer_elapsed (queue->in_timer, NULL);
888 /* recalc after each interval. */
889 if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
890 period = elapsed - queue->last_in_elapsed;
892 GST_DEBUG_OBJECT (queue,
893 "rates: period %f, in %" G_GUINT64_FORMAT, period, queue->bytes_in);
895 byte_in_rate = queue->bytes_in / period;
897 if (queue->byte_in_rate == 0.0)
898 queue->byte_in_rate = byte_in_rate;
900 queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate);
902 /* reset the values to calculate rate over the next interval */
903 queue->last_in_elapsed = elapsed;
907 if (queue->byte_in_rate > 0.0) {
908 queue->cur_level.rate_time =
909 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
911 GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
912 queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
916 update_out_rates (GstQueue2 * queue)
918 gdouble elapsed, period;
919 gdouble byte_out_rate;
921 if (!queue->out_timer_started) {
922 queue->out_timer_started = TRUE;
923 g_timer_start (queue->out_timer);
927 elapsed = g_timer_elapsed (queue->out_timer, NULL);
929 /* recalc after each interval. */
930 if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
931 period = elapsed - queue->last_out_elapsed;
933 GST_DEBUG_OBJECT (queue,
934 "rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
936 byte_out_rate = queue->bytes_out / period;
938 if (queue->byte_out_rate == 0.0)
939 queue->byte_out_rate = byte_out_rate;
941 queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
943 /* reset the values to calculate rate over the next interval */
944 queue->last_out_elapsed = elapsed;
945 queue->bytes_out = 0;
947 if (queue->byte_in_rate > 0.0) {
948 queue->cur_level.rate_time =
949 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
951 GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
952 queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
956 update_cur_pos (GstQueue2 * queue, GstQueue2Range * range, guint64 pos)
958 guint64 reading_pos, max_reading_pos;
961 max_reading_pos = range->max_reading_pos;
963 max_reading_pos = MAX (max_reading_pos, reading_pos);
965 GST_DEBUG_OBJECT (queue,
966 "updating max_reading_pos from %" G_GUINT64_FORMAT " to %"
967 G_GUINT64_FORMAT, range->max_reading_pos, max_reading_pos);
968 range->max_reading_pos = max_reading_pos;
970 update_cur_level (queue, range);
974 perform_seek_to_offset (GstQueue2 * queue, guint64 offset)
979 GST_QUEUE2_MUTEX_UNLOCK (queue);
981 GST_DEBUG_OBJECT (queue, "Seeking to %" G_GUINT64_FORMAT, offset);
984 gst_event_new_seek (1.0, GST_FORMAT_BYTES,
985 GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
986 GST_SEEK_TYPE_NONE, -1);
988 res = gst_pad_push_event (queue->sinkpad, event);
989 GST_QUEUE2_MUTEX_LOCK (queue);
992 queue->current = add_range (queue, offset);
997 /* see if there is enough data in the file to read a full buffer */
999 gst_queue2_have_data (GstQueue2 * queue, guint64 offset, guint length)
1001 GstQueue2Range *range;
1003 GST_DEBUG_OBJECT (queue, "looking for offset %" G_GUINT64_FORMAT ", len %u",
1006 if ((range = find_range (queue, offset))) {
1007 if (queue->current != range) {
1008 GST_DEBUG_OBJECT (queue, "switching ranges, do seek to range position");
1009 perform_seek_to_offset (queue, range->writing_pos);
1012 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1013 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1015 /* we have a range for offset */
1016 GST_DEBUG_OBJECT (queue,
1017 "we have a range %p, offset %" G_GUINT64_FORMAT ", writing_pos %"
1018 G_GUINT64_FORMAT, range, range->offset, range->writing_pos);
1020 if (!QUEUE_IS_USING_RING_BUFFER (queue) && queue->is_eos)
1023 if (offset + length <= range->writing_pos)
1026 GST_DEBUG_OBJECT (queue,
1027 "Need more data (%" G_GUINT64_FORMAT " bytes more)",
1028 (offset + length) - range->writing_pos);
1031 GST_INFO_OBJECT (queue, "not found in any range");
1032 /* we don't have the range, see how far away we are, FIXME, find a good
1033 * threshold based on the incomming rate. */
1034 if (!queue->is_eos && queue->current) {
1035 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1036 if (offset < queue->current->offset || offset >
1037 queue->current->writing_pos + QUEUE_MAX_BYTES (queue) -
1038 queue->cur_level.bytes) {
1039 perform_seek_to_offset (queue, offset);
1041 GST_INFO_OBJECT (queue,
1042 "requested data is within range, wait for data");
1044 } else if (offset < queue->current->writing_pos + 200000) {
1045 update_cur_pos (queue, queue->current, offset + length);
1046 GST_INFO_OBJECT (queue, "wait for data");
1051 /* too far away, do a seek */
1052 perform_seek_to_offset (queue, offset);
1059 #define FSEEK_FILE(file,offset) (fseeko (file, (off_t) offset, SEEK_SET) != 0)
1060 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1061 #define FSEEK_FILE(file,offset) (lseek (fileno (file), (off_t) offset, SEEK_SET) == (off_t) -1)
1063 #define FSEEK_FILE(file,offset) (fseek (file, offset, SEEK_SET) != 0)
1066 static GstFlowReturn
1067 gst_queue2_read_data_at_offset (GstQueue2 * queue, guint64 offset, guint length,
1068 guint8 * dst, gint64 * read_return)
1070 guint8 *ring_buffer;
1073 ring_buffer = queue->ring_buffer;
1075 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, offset))
1078 /* this should not block */
1079 GST_LOG_OBJECT (queue, "Reading %d bytes from offset %" G_GUINT64_FORMAT,
1081 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1082 res = fread (dst, 1, length, queue->temp_file);
1084 memcpy (dst, ring_buffer + offset, length);
1088 GST_LOG_OBJECT (queue, "read %" G_GSIZE_FORMAT " bytes", res);
1090 if (G_UNLIKELY (res < length)) {
1091 if (!QUEUE_IS_USING_TEMP_FILE (queue))
1092 goto could_not_read;
1093 /* check for errors or EOF */
1094 if (ferror (queue->temp_file))
1095 goto could_not_read;
1096 if (feof (queue->temp_file) && length > 0)
1106 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1107 return GST_FLOW_ERROR;
1111 GST_ELEMENT_ERROR (queue, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
1112 return GST_FLOW_ERROR;
1116 GST_DEBUG ("non-regular file hits EOS");
1117 return GST_FLOW_UNEXPECTED;
1121 static GstFlowReturn
1122 gst_queue2_create_read (GstQueue2 * queue, guint64 offset, guint length,
1123 GstBuffer ** buffer)
1127 guint64 file_offset;
1128 guint block_length, remaining, read_length;
1131 GstFlowReturn ret = GST_FLOW_OK;
1133 /* allocate the output buffer of the requested size */
1134 buf = gst_buffer_new_and_alloc (length);
1135 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
1137 GST_DEBUG_OBJECT (queue, "Reading %u bytes from %" G_GUINT64_FORMAT, length,
1141 rb_size = queue->ring_buffer_max_size;
1144 while (remaining > 0) {
1145 /* configure how much/whether to read */
1146 if (!gst_queue2_have_data (queue, rpos, remaining)) {
1149 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1152 /* calculate how far away the offset is */
1153 if (queue->current->writing_pos > rpos)
1154 level = queue->current->writing_pos - rpos;
1158 GST_DEBUG_OBJECT (queue,
1159 "reading %" G_GUINT64_FORMAT ", writing %" G_GUINT64_FORMAT
1160 ", level %" G_GUINT64_FORMAT,
1161 rpos, queue->current->writing_pos, level);
1163 if (level >= rb_size) {
1164 /* we don't have the data but if we have a ring buffer that is full, we
1166 GST_DEBUG_OBJECT (queue,
1167 "ring buffer full, reading ring-buffer-max-size %"
1168 G_GUINT64_FORMAT " bytes", rb_size);
1169 read_length = rb_size;
1170 } else if (queue->is_eos) {
1171 /* won't get any more data so read any data we have */
1173 GST_DEBUG_OBJECT (queue,
1174 "EOS hit but read %" G_GUINT64_FORMAT " bytes that we have",
1176 read_length = level;
1182 if (read_length == 0) {
1183 if (QUEUE_IS_USING_RING_BUFFER (queue)
1184 && queue->current->max_reading_pos > rpos) {
1185 /* protect cached data (data between offset and max_reading_pos)
1186 * and update current level */
1187 GST_DEBUG_OBJECT (queue,
1188 "protecting cached data [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1189 "]", rpos, queue->current->max_reading_pos);
1190 queue->current->max_reading_pos = rpos;
1191 update_cur_level (queue, queue->current);
1193 GST_DEBUG_OBJECT (queue, "waiting for add");
1194 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
1198 /* we have the requested data so read it */
1199 read_length = remaining;
1202 /* set range reading_pos to actual reading position for this read */
1203 queue->current->reading_pos = rpos;
1205 /* congfigure how much and from where to read */
1206 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1208 (queue->current->rb_offset + (rpos -
1209 queue->current->offset)) % rb_size;
1210 if (file_offset + read_length > rb_size) {
1211 block_length = rb_size - file_offset;
1213 block_length = read_length;
1217 block_length = read_length;
1220 /* while we still have data to read, we loop */
1221 while (read_length > 0) {
1225 gst_queue2_read_data_at_offset (queue, file_offset, block_length,
1226 data, &read_return);
1227 if (ret != GST_FLOW_OK)
1230 file_offset += read_return;
1231 if (QUEUE_IS_USING_RING_BUFFER (queue))
1232 file_offset %= rb_size;
1234 data += read_return;
1235 read_length -= read_return;
1236 block_length = read_length;
1237 remaining -= read_return;
1239 rpos = (queue->current->reading_pos += read_return);
1240 update_cur_pos (queue, queue->current, queue->current->reading_pos);
1242 GST_QUEUE2_SIGNAL_DEL (queue);
1243 GST_DEBUG_OBJECT (queue, "%u bytes left to read", remaining);
1246 gst_buffer_unmap (buf, data, length);
1248 GST_BUFFER_OFFSET (buf) = offset;
1249 GST_BUFFER_OFFSET_END (buf) = offset + length;
1258 GST_DEBUG_OBJECT (queue, "EOS hit and we don't have any requested data");
1259 gst_buffer_unref (buf);
1260 return GST_FLOW_UNEXPECTED;
1264 GST_DEBUG_OBJECT (queue, "we are flushing");
1265 gst_buffer_unref (buf);
1266 return GST_FLOW_WRONG_STATE;
1270 GST_DEBUG_OBJECT (queue, "we have a read error");
1271 gst_buffer_unmap (buf, data, 0);
1272 gst_buffer_unref (buf);
1277 /* should be called with QUEUE_LOCK */
1278 static GstMiniObject *
1279 gst_queue2_read_item_from_file (GstQueue2 * queue)
1281 GstMiniObject *item;
1283 if (queue->starting_segment != NULL) {
1284 item = GST_MINI_OBJECT_CAST (queue->starting_segment);
1285 queue->starting_segment = NULL;
1289 guint64 reading_pos;
1291 reading_pos = queue->current->reading_pos;
1294 gst_queue2_create_read (queue, reading_pos, DEFAULT_BUFFER_SIZE,
1299 item = GST_MINI_OBJECT_CAST (buffer);
1301 case GST_FLOW_UNEXPECTED:
1302 item = GST_MINI_OBJECT_CAST (gst_event_new_eos ());
1312 /* must be called with MUTEX_LOCK. Will briefly release the lock when notifying
1313 * the temp filename. */
1315 gst_queue2_open_temp_location_file (GstQueue2 * queue)
1320 if (queue->temp_file)
1321 goto already_opened;
1323 GST_DEBUG_OBJECT (queue, "opening temp file %s", queue->temp_template);
1325 /* we have two cases:
1326 * - temp_location was set to something !NULL (Deprecated). in this case we
1327 * open the specified filename.
1328 * - temp_template was set, allocate a filename and open that filename
1330 if (!queue->temp_location_set) {
1332 if (queue->temp_template == NULL)
1335 /* make copy of the template, we don't want to change this */
1336 name = g_strdup (queue->temp_template);
1337 fd = g_mkstemp (name);
1339 goto mkstemp_failed;
1341 /* open the file for update/writing */
1342 queue->temp_file = fdopen (fd, "wb+");
1343 /* error creating file */
1344 if (queue->temp_file == NULL)
1347 g_free (queue->temp_location);
1348 queue->temp_location = name;
1350 GST_QUEUE2_MUTEX_UNLOCK (queue);
1352 /* we can't emit the notify with the lock */
1353 g_object_notify (G_OBJECT (queue), "temp-location");
1355 GST_QUEUE2_MUTEX_LOCK (queue);
1357 /* open the file for update/writing, this is deprecated but we still need to
1358 * support it for API/ABI compatibility */
1359 queue->temp_file = g_fopen (queue->temp_location, "wb+");
1360 /* error creating file */
1361 if (queue->temp_file == NULL)
1364 GST_DEBUG_OBJECT (queue, "opened temp file %s", queue->temp_template);
1371 GST_DEBUG_OBJECT (queue, "temp file was already open");
1376 GST_ELEMENT_ERROR (queue, RESOURCE, NOT_FOUND,
1377 (_("No Temp directory specified.")), (NULL));
1382 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1383 (_("Could not create temp file \"%s\"."), queue->temp_template),
1390 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1391 (_("Could not open file \"%s\" for reading."), name), GST_ERROR_SYSTEM);
1400 gst_queue2_close_temp_location_file (GstQueue2 * queue)
1403 if (queue->temp_file == NULL)
1406 GST_DEBUG_OBJECT (queue, "closing temp file");
1408 fflush (queue->temp_file);
1409 fclose (queue->temp_file);
1411 if (queue->temp_remove)
1412 remove (queue->temp_location);
1414 queue->temp_file = NULL;
1415 clean_ranges (queue);
1419 gst_queue2_flush_temp_file (GstQueue2 * queue)
1421 if (queue->temp_file == NULL)
1424 GST_DEBUG_OBJECT (queue, "flushing temp file");
1426 queue->temp_file = g_freopen (queue->temp_location, "wb+", queue->temp_file);
1430 gst_queue2_locked_flush (GstQueue2 * queue)
1432 if (!QUEUE_IS_USING_QUEUE (queue)) {
1433 if (QUEUE_IS_USING_TEMP_FILE (queue))
1434 gst_queue2_flush_temp_file (queue);
1435 init_ranges (queue);
1437 while (!g_queue_is_empty (queue->queue)) {
1438 GstMiniObject *data = g_queue_pop_head (queue->queue);
1440 /* Then lose another reference because we are supposed to destroy that
1441 data when flushing */
1442 gst_mini_object_unref (data);
1445 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1446 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
1447 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
1448 queue->sinktime = queue->srctime = GST_CLOCK_TIME_NONE;
1449 queue->sink_tainted = queue->src_tainted = TRUE;
1450 if (queue->starting_segment != NULL)
1451 gst_event_unref (queue->starting_segment);
1452 queue->starting_segment = NULL;
1453 queue->segment_event_received = FALSE;
1455 /* we deleted a lot of something */
1456 GST_QUEUE2_SIGNAL_DEL (queue);
1460 gst_queue2_wait_free_space (GstQueue2 * queue)
1462 /* We make space available if we're "full" according to whatever
1463 * the user defined as "full". */
1464 if (gst_queue2_is_filled (queue)) {
1467 /* pause the timer while we wait. The fact that we are waiting does not mean
1468 * the byterate on the input pad is lower */
1469 if ((started = queue->in_timer_started))
1470 g_timer_stop (queue->in_timer);
1472 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
1473 "queue is full, waiting for free space");
1475 /* Wait for space to be available, we could be unlocked because of a flush. */
1476 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1478 while (gst_queue2_is_filled (queue));
1480 /* and continue if we were running before */
1482 g_timer_continue (queue->in_timer);
1489 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "queue is flushing");
1495 gst_queue2_create_write (GstQueue2 * queue, GstBuffer * buffer)
1497 guint8 *odata, *data, *ring_buffer;
1498 guint size, rb_size;
1500 guint64 writing_pos, new_writing_pos;
1501 GstQueue2Range *range, *prev, *next;
1503 if (QUEUE_IS_USING_RING_BUFFER (queue))
1504 writing_pos = queue->current->rb_writing_pos;
1506 writing_pos = queue->current->writing_pos;
1507 ring_buffer = queue->ring_buffer;
1508 rb_size = queue->ring_buffer_max_size;
1510 odata = gst_buffer_map (buffer, &osize, NULL, GST_MAP_READ);
1515 GST_DEBUG_OBJECT (queue, "Writing %u bytes to %" G_GUINT64_FORMAT, size,
1516 GST_BUFFER_OFFSET (buffer));
1521 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1524 /* calculate the space in the ring buffer not used by data from
1525 * the current range */
1526 while (QUEUE_MAX_BYTES (queue) <= queue->cur_level.bytes) {
1527 /* wait until there is some free space */
1528 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1530 /* get the amount of space we have */
1531 space = QUEUE_MAX_BYTES (queue) - queue->cur_level.bytes;
1533 /* calculate if we need to split or if we can write the entire
1535 to_write = MIN (size, space);
1537 /* the writing position in the ring buffer after writing (part
1538 * or all of) the buffer */
1539 new_writing_pos = (writing_pos + to_write) % rb_size;
1542 range = queue->ranges;
1544 /* if we need to overwrite data in the ring buffer, we need to
1547 * warning: this code is complicated and includes some
1548 * simplifications - pen, paper and diagrams for the cases
1551 guint64 range_data_start, range_data_end;
1552 GstQueue2Range *range_to_destroy = NULL;
1554 range_data_start = range->rb_offset;
1555 range_data_end = range->rb_writing_pos;
1557 /* handle the special case where the range has no data in it */
1558 if (range->writing_pos == range->offset) {
1559 if (range != queue->current) {
1560 GST_DEBUG_OBJECT (queue,
1561 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1562 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1564 range_to_destroy = range;
1566 prev->next = range->next;
1571 if (range_data_end > range_data_start) {
1572 if (writing_pos >= range_data_end && new_writing_pos >= writing_pos)
1575 if (new_writing_pos > range_data_start) {
1576 if (new_writing_pos >= range_data_end) {
1577 GST_DEBUG_OBJECT (queue,
1578 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1579 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1581 range_to_destroy = range;
1583 prev->next = range->next;
1585 GST_DEBUG_OBJECT (queue,
1586 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1587 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1588 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1589 range->offset + new_writing_pos - range_data_start,
1591 range->offset += (new_writing_pos - range_data_start);
1592 range->rb_offset = new_writing_pos;
1596 guint64 new_wpos_virt = writing_pos + to_write;
1598 if (new_wpos_virt <= range_data_start)
1601 if (new_wpos_virt > rb_size && new_writing_pos >= range_data_end) {
1602 GST_DEBUG_OBJECT (queue,
1603 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1604 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1606 range_to_destroy = range;
1608 prev->next = range->next;
1610 GST_DEBUG_OBJECT (queue,
1611 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1612 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1613 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1614 range->offset + new_writing_pos - range_data_start,
1616 range->offset += (new_wpos_virt - range_data_start);
1617 range->rb_offset = new_writing_pos;
1622 if (!range_to_destroy)
1625 range = range->next;
1626 if (range_to_destroy) {
1627 if (range_to_destroy == queue->ranges)
1628 queue->ranges = range;
1629 g_slice_free (GstQueue2Range, range_to_destroy);
1630 range_to_destroy = NULL;
1635 new_writing_pos = writing_pos + to_write;
1638 if (QUEUE_IS_USING_TEMP_FILE (queue)
1639 && FSEEK_FILE (queue->temp_file, writing_pos))
1642 if (new_writing_pos > writing_pos) {
1643 GST_INFO_OBJECT (queue,
1644 "writing %u bytes to range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1645 "] (rb wpos %" G_GUINT64_FORMAT ")", to_write, queue->current->offset,
1646 queue->current->writing_pos, queue->current->rb_writing_pos);
1647 /* either not using ring buffer or no wrapping, just write */
1648 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1649 if (fwrite (data, to_write, 1, queue->temp_file) != 1)
1652 memcpy (ring_buffer + writing_pos, data, to_write);
1655 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
1656 /* try to merge with next range */
1657 while ((next = queue->current->next)) {
1658 GST_INFO_OBJECT (queue,
1659 "checking merge with next range %" G_GUINT64_FORMAT " < %"
1660 G_GUINT64_FORMAT, new_writing_pos, next->offset);
1661 if (new_writing_pos < next->offset)
1664 GST_DEBUG_OBJECT (queue, "merging ranges %" G_GUINT64_FORMAT,
1667 /* remove the group, we could choose to not read the data in this range
1668 * again. This would involve us doing a seek to the current writing position
1669 * in the range. FIXME, It would probably make sense to do a seek when there
1670 * is a lot of data in the range we merged with to avoid reading it all
1672 queue->current->next = next->next;
1673 g_slice_free (GstQueue2Range, next);
1675 debug_ranges (queue);
1677 goto update_and_signal;
1681 guint block_one, block_two;
1683 block_one = rb_size - writing_pos;
1684 block_two = to_write - block_one;
1686 if (block_one > 0) {
1687 GST_INFO_OBJECT (queue, "writing %u bytes", block_one);
1688 /* write data to end of ring buffer */
1689 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1690 if (fwrite (data, block_one, 1, queue->temp_file) != 1)
1693 memcpy (ring_buffer + writing_pos, data, block_one);
1697 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, 0))
1700 if (block_two > 0) {
1701 GST_INFO_OBJECT (queue, "writing %u bytes", block_two);
1702 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1703 if (fwrite (data + block_one, block_two, 1, queue->temp_file) != 1)
1706 memcpy (ring_buffer, data + block_one, block_two);
1712 /* update the writing positions */
1714 GST_INFO_OBJECT (queue,
1715 "wrote %u bytes to %" G_GUINT64_FORMAT " (%u bytes remaining to write)",
1716 to_write, writing_pos, size);
1718 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1720 queue->current->writing_pos += to_write;
1721 queue->current->rb_writing_pos = writing_pos = new_writing_pos;
1723 queue->current->writing_pos = writing_pos = new_writing_pos;
1725 update_cur_level (queue, queue->current);
1727 /* update the buffering status */
1728 if (queue->use_buffering)
1729 update_buffering (queue);
1731 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1732 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1734 GST_QUEUE2_SIGNAL_ADD (queue);
1737 gst_buffer_unmap (buffer, odata, osize);
1744 GST_DEBUG_OBJECT (queue, "we are flushing");
1745 gst_buffer_unmap (buffer, odata, osize);
1746 /* FIXME - GST_FLOW_UNEXPECTED ? */
1751 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1752 gst_buffer_unmap (buffer, odata, osize);
1759 GST_ELEMENT_ERROR (queue, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
1763 GST_ELEMENT_ERROR (queue, RESOURCE, WRITE,
1764 (_("Error while writing to download file.")),
1765 ("%s", g_strerror (errno)));
1768 gst_buffer_unmap (buffer, odata, osize);
1773 /* enqueue an item an update the level stats */
1775 gst_queue2_locked_enqueue (GstQueue2 * queue, gpointer item, gboolean isbuffer)
1781 buffer = GST_BUFFER_CAST (item);
1782 size = gst_buffer_get_size (buffer);
1784 /* add buffer to the statistics */
1785 if (QUEUE_IS_USING_QUEUE (queue)) {
1786 queue->cur_level.buffers++;
1787 queue->cur_level.bytes += size;
1789 queue->bytes_in += size;
1791 /* apply new buffer to segment stats */
1792 apply_buffer (queue, buffer, &queue->sink_segment, TRUE);
1793 /* update the byterate stats */
1794 update_in_rates (queue);
1796 if (!QUEUE_IS_USING_QUEUE (queue)) {
1797 /* FIXME - check return value? */
1798 gst_queue2_create_write (queue, buffer);
1800 } else if (GST_IS_EVENT (item)) {
1803 event = GST_EVENT_CAST (item);
1805 switch (GST_EVENT_TYPE (event)) {
1807 /* Zero the thresholds, this makes sure the queue is completely
1808 * filled and we can read all data from the queue. */
1809 GST_DEBUG_OBJECT (queue, "we have EOS");
1810 queue->is_eos = TRUE;
1812 case GST_EVENT_SEGMENT:
1813 apply_segment (queue, event, &queue->sink_segment, TRUE);
1814 /* This is our first new segment, we hold it
1815 * as we can't save it on the temp file */
1816 if (!QUEUE_IS_USING_QUEUE (queue)) {
1817 if (queue->segment_event_received)
1818 goto unexpected_event;
1820 queue->segment_event_received = TRUE;
1821 if (queue->starting_segment != NULL)
1822 gst_event_unref (queue->starting_segment);
1823 queue->starting_segment = event;
1826 /* a new segment allows us to accept more buffers if we got UNEXPECTED
1827 * from downstream */
1828 queue->unexpected = FALSE;
1831 if (!QUEUE_IS_USING_QUEUE (queue))
1832 goto unexpected_event;
1836 g_warning ("Unexpected item %p added in queue %s (refcounting problem?)",
1837 item, GST_OBJECT_NAME (queue));
1838 /* we can't really unref since we don't know what it is */
1843 /* update the buffering status */
1844 if (queue->use_buffering)
1845 update_buffering (queue);
1847 if (QUEUE_IS_USING_QUEUE (queue)) {
1848 g_queue_push_tail (queue->queue, item);
1850 gst_mini_object_unref (GST_MINI_OBJECT_CAST (item));
1853 GST_QUEUE2_SIGNAL_ADD (queue);
1862 ("Unexpected event of kind %s can't be added in temp file of queue %s ",
1863 gst_event_type_get_name (GST_EVENT_TYPE (item)),
1864 GST_OBJECT_NAME (queue));
1865 gst_event_unref (GST_EVENT_CAST (item));
1870 /* dequeue an item from the queue and update level stats */
1871 static GstMiniObject *
1872 gst_queue2_locked_dequeue (GstQueue2 * queue, gboolean * is_buffer)
1874 GstMiniObject *item;
1876 if (!QUEUE_IS_USING_QUEUE (queue))
1877 item = gst_queue2_read_item_from_file (queue);
1879 item = g_queue_pop_head (queue->queue);
1884 if (GST_IS_BUFFER (item)) {
1888 buffer = GST_BUFFER_CAST (item);
1889 size = gst_buffer_get_size (buffer);
1892 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1893 "retrieved buffer %p from queue", buffer);
1895 if (QUEUE_IS_USING_QUEUE (queue)) {
1896 queue->cur_level.buffers--;
1897 queue->cur_level.bytes -= size;
1899 queue->bytes_out += size;
1901 apply_buffer (queue, buffer, &queue->src_segment, FALSE);
1902 /* update the byterate stats */
1903 update_out_rates (queue);
1904 /* update the buffering */
1905 if (queue->use_buffering)
1906 update_buffering (queue);
1908 } else if (GST_IS_EVENT (item)) {
1909 GstEvent *event = GST_EVENT_CAST (item);
1913 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1914 "retrieved event %p from queue", event);
1916 switch (GST_EVENT_TYPE (event)) {
1918 /* queue is empty now that we dequeued the EOS */
1919 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1921 case GST_EVENT_SEGMENT:
1922 apply_segment (queue, event, &queue->src_segment, FALSE);
1929 ("Unexpected item %p dequeued from queue %s (refcounting problem?)",
1930 item, GST_OBJECT_NAME (queue));
1933 GST_QUEUE2_SIGNAL_DEL (queue);
1940 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "the queue is empty");
1946 gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event)
1950 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
1952 switch (GST_EVENT_TYPE (event)) {
1953 case GST_EVENT_FLUSH_START:
1955 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush start event");
1956 if (QUEUE_IS_USING_QUEUE (queue)) {
1958 gst_pad_push_event (queue->srcpad, event);
1960 /* now unblock the chain function */
1961 GST_QUEUE2_MUTEX_LOCK (queue);
1962 queue->srcresult = GST_FLOW_WRONG_STATE;
1963 queue->sinkresult = GST_FLOW_WRONG_STATE;
1964 /* unblock the loop and chain functions */
1965 GST_QUEUE2_SIGNAL_ADD (queue);
1966 GST_QUEUE2_SIGNAL_DEL (queue);
1967 GST_QUEUE2_MUTEX_UNLOCK (queue);
1969 /* make sure it pauses, this should happen since we sent
1970 * flush_start downstream. */
1971 gst_pad_pause_task (queue->srcpad);
1972 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "loop stopped");
1974 GST_QUEUE2_MUTEX_LOCK (queue);
1975 /* flush the sink pad */
1976 queue->sinkresult = GST_FLOW_WRONG_STATE;
1977 GST_QUEUE2_SIGNAL_DEL (queue);
1978 GST_QUEUE2_MUTEX_UNLOCK (queue);
1980 gst_event_unref (event);
1984 case GST_EVENT_FLUSH_STOP:
1986 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush stop event");
1988 if (QUEUE_IS_USING_QUEUE (queue)) {
1990 gst_pad_push_event (queue->srcpad, event);
1992 GST_QUEUE2_MUTEX_LOCK (queue);
1993 gst_queue2_locked_flush (queue);
1994 queue->srcresult = GST_FLOW_OK;
1995 queue->sinkresult = GST_FLOW_OK;
1996 queue->is_eos = FALSE;
1997 queue->unexpected = FALSE;
1998 /* reset rate counters */
1999 reset_rate_timer (queue);
2000 gst_pad_start_task (queue->srcpad, (GstTaskFunction) gst_queue2_loop,
2002 GST_QUEUE2_MUTEX_UNLOCK (queue);
2004 GST_QUEUE2_MUTEX_LOCK (queue);
2005 queue->segment_event_received = FALSE;
2006 queue->is_eos = FALSE;
2007 queue->unexpected = FALSE;
2008 queue->sinkresult = GST_FLOW_OK;
2009 GST_QUEUE2_MUTEX_UNLOCK (queue);
2011 gst_event_unref (event);
2016 if (GST_EVENT_IS_SERIALIZED (event)) {
2017 /* serialized events go in the queue */
2018 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2019 /* refuse more events on EOS */
2022 gst_queue2_locked_enqueue (queue, event, FALSE);
2023 GST_QUEUE2_MUTEX_UNLOCK (queue);
2025 /* non-serialized events are passed upstream. */
2026 gst_pad_push_event (queue->srcpad, event);
2036 GST_DEBUG_OBJECT (queue, "refusing event, we are flushing");
2037 GST_QUEUE2_MUTEX_UNLOCK (queue);
2038 gst_event_unref (event);
2043 GST_DEBUG_OBJECT (queue, "refusing event, we are EOS");
2044 GST_QUEUE2_MUTEX_UNLOCK (queue);
2045 gst_event_unref (event);
2051 gst_queue2_is_empty (GstQueue2 * queue)
2053 /* never empty on EOS */
2057 if (!QUEUE_IS_USING_QUEUE (queue) && queue->current) {
2058 return queue->current->writing_pos <= queue->current->max_reading_pos;
2060 if (queue->queue->length == 0)
2068 gst_queue2_is_filled (GstQueue2 * queue)
2072 /* always filled on EOS */
2076 #define CHECK_FILLED(format,alt_max) ((queue->max_level.format) > 0 && \
2077 (queue->cur_level.format) >= ((alt_max) ? \
2078 MIN ((queue->max_level.format), (alt_max)) : (queue->max_level.format)))
2080 /* if using a ring buffer we're filled if all ring buffer space is used
2081 * _by the current range_ */
2082 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
2083 guint64 rb_size = queue->ring_buffer_max_size;
2084 GST_DEBUG_OBJECT (queue,
2085 "max bytes %u, rb size %" G_GUINT64_FORMAT ", cur bytes %u",
2086 queue->max_level.bytes, rb_size, queue->cur_level.bytes);
2087 return CHECK_FILLED (bytes, rb_size);
2090 /* if using file, we're never filled if we don't have EOS */
2091 if (QUEUE_IS_USING_TEMP_FILE (queue))
2094 /* we are never filled when we have no buffers at all */
2095 if (queue->cur_level.buffers == 0)
2098 /* we are filled if one of the current levels exceeds the max */
2099 res = CHECK_FILLED (buffers, 0) || CHECK_FILLED (bytes, 0)
2100 || CHECK_FILLED (time, 0);
2102 /* if we need to, use the rate estimate to check against the max time we are
2103 * allowed to queue */
2104 if (queue->use_rate_estimate)
2105 res |= CHECK_FILLED (rate_time, 0);
2111 static GstFlowReturn
2112 gst_queue2_chain (GstPad * pad, GstBuffer * buffer)
2116 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
2118 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2119 "received buffer %p of size %d, time %" GST_TIME_FORMAT ", duration %"
2120 GST_TIME_FORMAT, buffer, gst_buffer_get_size (buffer),
2121 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
2122 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
2124 /* we have to lock the queue since we span threads */
2125 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2126 /* when we received EOS, we refuse more data */
2129 /* when we received unexpected from downstream, refuse more buffers */
2130 if (queue->unexpected)
2131 goto out_unexpected;
2133 if (!gst_queue2_wait_free_space (queue))
2136 /* put buffer in queue now */
2137 gst_queue2_locked_enqueue (queue, buffer, TRUE);
2138 GST_QUEUE2_MUTEX_UNLOCK (queue);
2142 /* special conditions */
2145 GstFlowReturn ret = queue->sinkresult;
2147 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2148 "exit because task paused, reason: %s", gst_flow_get_name (ret));
2149 GST_QUEUE2_MUTEX_UNLOCK (queue);
2150 gst_buffer_unref (buffer);
2156 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2157 GST_QUEUE2_MUTEX_UNLOCK (queue);
2158 gst_buffer_unref (buffer);
2160 return GST_FLOW_UNEXPECTED;
2164 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2165 "exit because we received UNEXPECTED");
2166 GST_QUEUE2_MUTEX_UNLOCK (queue);
2167 gst_buffer_unref (buffer);
2169 return GST_FLOW_UNEXPECTED;
2173 /* dequeue an item from the queue an push it downstream. This functions returns
2174 * the result of the push. */
2175 static GstFlowReturn
2176 gst_queue2_push_one (GstQueue2 * queue)
2178 GstFlowReturn result = GST_FLOW_OK;
2179 GstMiniObject *data;
2180 gboolean is_buffer = FALSE;
2182 data = gst_queue2_locked_dequeue (queue, &is_buffer);
2187 GST_QUEUE2_MUTEX_UNLOCK (queue);
2195 buffer = GST_BUFFER_CAST (data);
2197 caps = GST_BUFFER_CAPS (buffer);
2201 /* set caps before pushing the buffer so that core does not try to do
2202 * something fancy to check if this is possible. */
2203 if (caps && caps != GST_PAD_CAPS (queue->srcpad))
2204 gst_pad_set_caps (queue->srcpad, caps);
2207 result = gst_pad_push (queue->srcpad, buffer);
2209 /* need to check for srcresult here as well */
2210 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2211 if (result == GST_FLOW_UNEXPECTED) {
2212 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2213 "got UNEXPECTED from downstream");
2214 /* stop pushing buffers, we dequeue all items until we see an item that we
2215 * can push again, which is EOS or SEGMENT. If there is nothing in the
2216 * queue we can push, we set a flag to make the sinkpad refuse more
2217 * buffers with an UNEXPECTED return value until we receive something
2218 * pushable again or we get flushed. */
2219 while ((data = gst_queue2_locked_dequeue (queue, &is_buffer))) {
2221 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2222 "dropping UNEXPECTED buffer %p", data);
2223 gst_buffer_unref (GST_BUFFER_CAST (data));
2224 } else if (GST_IS_EVENT (data)) {
2225 GstEvent *event = GST_EVENT_CAST (data);
2226 GstEventType type = GST_EVENT_TYPE (event);
2228 if (type == GST_EVENT_EOS || type == GST_EVENT_SEGMENT) {
2229 /* we found a pushable item in the queue, push it out */
2230 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2231 "pushing pushable event %s after UNEXPECTED",
2232 GST_EVENT_TYPE_NAME (event));
2235 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2236 "dropping UNEXPECTED event %p", event);
2237 gst_event_unref (event);
2240 /* no more items in the queue. Set the unexpected flag so that upstream
2241 * make us refuse any more buffers on the sinkpad. Since we will still
2242 * accept EOS and SEGMENT we return _FLOW_OK to the caller so that the
2243 * task function does not shut down. */
2244 queue->unexpected = TRUE;
2245 result = GST_FLOW_OK;
2247 } else if (GST_IS_EVENT (data)) {
2248 GstEvent *event = GST_EVENT_CAST (data);
2249 GstEventType type = GST_EVENT_TYPE (event);
2251 gst_pad_push_event (queue->srcpad, event);
2253 /* if we're EOS, return UNEXPECTED so that the task pauses. */
2254 if (type == GST_EVENT_EOS) {
2255 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2256 "pushed EOS event %p, return UNEXPECTED", event);
2257 result = GST_FLOW_UNEXPECTED;
2260 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2267 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2268 "exit because we have no item in the queue");
2269 return GST_FLOW_ERROR;
2273 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we are flushing");
2274 return GST_FLOW_WRONG_STATE;
2278 /* called repeadedly with @pad as the source pad. This function should push out
2279 * data to the peer element. */
2281 gst_queue2_loop (GstPad * pad)
2286 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2288 /* have to lock for thread-safety */
2289 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2291 if (gst_queue2_is_empty (queue)) {
2294 /* pause the timer while we wait. The fact that we are waiting does not mean
2295 * the byterate on the output pad is lower */
2296 if ((started = queue->out_timer_started))
2297 g_timer_stop (queue->out_timer);
2299 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
2300 "queue is empty, waiting for new data");
2302 /* Wait for data to be available, we could be unlocked because of a flush. */
2303 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
2305 while (gst_queue2_is_empty (queue));
2307 /* and continue if we were running before */
2309 g_timer_continue (queue->out_timer);
2311 ret = gst_queue2_push_one (queue);
2312 queue->srcresult = ret;
2313 queue->sinkresult = ret;
2314 if (ret != GST_FLOW_OK)
2317 GST_QUEUE2_MUTEX_UNLOCK (queue);
2324 gboolean eos = queue->is_eos;
2325 GstFlowReturn ret = queue->srcresult;
2327 gst_pad_pause_task (queue->srcpad);
2328 GST_QUEUE2_MUTEX_UNLOCK (queue);
2329 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2330 "pause task, reason: %s", gst_flow_get_name (queue->srcresult));
2331 /* let app know about us giving up if upstream is not expected to do so */
2332 /* UNEXPECTED is already taken care of elsewhere */
2333 if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED)) {
2334 GST_ELEMENT_ERROR (queue, STREAM, FAILED,
2335 (_("Internal data flow error.")),
2336 ("streaming task paused, reason %s (%d)",
2337 gst_flow_get_name (ret), ret));
2338 gst_pad_push_event (queue->srcpad, gst_event_new_eos ());
2345 gst_queue2_handle_src_event (GstPad * pad, GstEvent * event)
2347 gboolean res = TRUE;
2348 GstQueue2 *queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2350 if (G_UNLIKELY (queue == NULL)) {
2351 gst_event_unref (event);
2354 #ifndef GST_DISABLE_GST_DEBUG
2355 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "got event %p (%s)",
2356 event, GST_EVENT_TYPE_NAME (event));
2359 switch (GST_EVENT_TYPE (event)) {
2360 case GST_EVENT_FLUSH_START:
2361 if (QUEUE_IS_USING_QUEUE (queue)) {
2362 /* just forward upstream */
2363 res = gst_pad_push_event (queue->sinkpad, event);
2365 /* now unblock the getrange function */
2366 GST_QUEUE2_MUTEX_LOCK (queue);
2367 GST_DEBUG_OBJECT (queue, "flushing");
2368 queue->srcresult = GST_FLOW_WRONG_STATE;
2369 GST_QUEUE2_SIGNAL_ADD (queue);
2370 GST_QUEUE2_MUTEX_UNLOCK (queue);
2372 /* when using a temp file, we eat the event */
2374 gst_event_unref (event);
2377 case GST_EVENT_FLUSH_STOP:
2378 if (QUEUE_IS_USING_QUEUE (queue)) {
2379 /* just forward upstream */
2380 res = gst_pad_push_event (queue->sinkpad, event);
2382 /* now unblock the getrange function */
2383 GST_QUEUE2_MUTEX_LOCK (queue);
2384 queue->srcresult = GST_FLOW_OK;
2385 if (queue->current) {
2386 /* forget the highest read offset, we'll calculate a new one when we
2387 * get the next getrange request. We need to do this in order to reset
2388 * the buffering percentage */
2389 queue->current->max_reading_pos = 0;
2391 GST_QUEUE2_MUTEX_UNLOCK (queue);
2393 /* when using a temp file, we eat the event */
2395 gst_event_unref (event);
2399 res = gst_pad_push_event (queue->sinkpad, event);
2403 gst_object_unref (queue);
2408 gst_queue2_peer_query (GstQueue2 * queue, GstPad * pad, GstQuery ** query)
2410 gboolean ret = FALSE;
2413 if ((peer = gst_pad_get_peer (pad))) {
2414 ret = gst_pad_query (peer, query);
2415 gst_object_unref (peer);
2421 gst_queue2_handle_src_query (GstPad * pad, GstQuery ** query)
2425 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2426 if (G_UNLIKELY (queue == NULL))
2429 switch (GST_QUERY_TYPE (*query)) {
2430 case GST_QUERY_POSITION:
2435 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2438 /* get peer position */
2439 gst_query_parse_position (*query, &format, &peer_pos);
2441 /* FIXME: this code assumes that there's no discont in the queue */
2443 case GST_FORMAT_BYTES:
2444 peer_pos -= queue->cur_level.bytes;
2446 case GST_FORMAT_TIME:
2447 peer_pos -= queue->cur_level.time;
2450 GST_WARNING_OBJECT (queue, "dropping query in %s format, don't "
2451 "know how to adjust value", gst_format_get_name (format));
2454 /* set updated position */
2455 gst_query_set_position (*query, format, peer_pos);
2458 case GST_QUERY_DURATION:
2460 GST_DEBUG_OBJECT (queue, "doing peer query");
2462 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2465 GST_DEBUG_OBJECT (queue, "peer query success");
2468 case GST_QUERY_BUFFERING:
2472 GST_DEBUG_OBJECT (queue, "query buffering");
2474 /* FIXME - is this condition correct? what should ring buffer do? */
2475 if (QUEUE_IS_USING_QUEUE (queue)) {
2476 /* no temp file, just forward to the peer */
2477 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2479 GST_DEBUG_OBJECT (queue, "buffering forwarded to peer");
2481 gint64 start, stop, range_start, range_stop;
2482 guint64 writing_pos;
2484 gint64 estimated_total, buffering_left;
2487 gboolean peer_res, is_buffering, is_eos;
2488 gdouble byte_in_rate, byte_out_rate;
2489 GstQueue2Range *queued_ranges;
2491 /* we need a current download region */
2492 if (queue->current == NULL)
2495 writing_pos = queue->current->writing_pos;
2496 byte_in_rate = queue->byte_in_rate;
2497 byte_out_rate = queue->byte_out_rate;
2498 is_buffering = queue->is_buffering;
2499 is_eos = queue->is_eos;
2500 percent = queue->buffering_percent;
2503 /* we're EOS, we know the duration in bytes now */
2505 duration = writing_pos;
2507 /* get duration of upstream in bytes */
2508 peer_fmt = GST_FORMAT_BYTES;
2509 peer_res = gst_pad_query_peer_duration (queue->sinkpad, &peer_fmt,
2513 /* calculate remaining and total download time */
2514 if (peer_res && byte_in_rate > 0.0) {
2515 estimated_total = (duration * 1000) / byte_in_rate;
2516 buffering_left = ((duration - writing_pos) * 1000) / byte_in_rate;
2518 estimated_total = -1;
2519 buffering_left = -1;
2521 GST_DEBUG_OBJECT (queue, "estimated %" G_GINT64_FORMAT ", left %"
2522 G_GINT64_FORMAT, estimated_total, buffering_left);
2524 gst_query_parse_buffering_range (*query, &format, NULL, NULL, NULL);
2527 case GST_FORMAT_PERCENT:
2528 /* we need duration */
2532 GST_DEBUG_OBJECT (queue,
2533 "duration %" G_GINT64_FORMAT ", writing %" G_GINT64_FORMAT,
2534 duration, writing_pos);
2537 /* get our available data relative to the duration */
2539 stop = GST_FORMAT_PERCENT_MAX * writing_pos / duration;
2543 case GST_FORMAT_BYTES:
2553 /* fill out the buffered ranges */
2554 for (queued_ranges = queue->ranges; queued_ranges;
2555 queued_ranges = queued_ranges->next) {
2557 case GST_FORMAT_PERCENT:
2558 if (duration == -1) {
2563 range_start = 100 * queued_ranges->offset / duration;
2564 range_stop = 100 * queued_ranges->writing_pos / duration;
2566 case GST_FORMAT_BYTES:
2567 range_start = queued_ranges->offset;
2568 range_stop = queued_ranges->writing_pos;
2575 if (range_start == range_stop)
2577 GST_DEBUG_OBJECT (queue,
2578 "range starting at %" G_GINT64_FORMAT " and finishing at %"
2579 G_GINT64_FORMAT, range_start, range_stop);
2580 gst_query_add_buffering_range (*query, range_start, range_stop);
2583 gst_query_set_buffering_percent (*query, is_buffering, percent);
2584 gst_query_set_buffering_range (*query, format, start, stop,
2586 gst_query_set_buffering_stats (*query, GST_BUFFERING_DOWNLOAD,
2587 byte_in_rate, byte_out_rate, buffering_left);
2592 /* peer handled other queries */
2593 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2598 gst_object_unref (queue);
2604 GST_DEBUG_OBJECT (queue, "failed peer query");
2605 gst_object_unref (queue);
2611 gst_queue2_handle_query (GstElement * element, GstQuery ** query)
2613 /* simply forward to the srcpad query function */
2614 return gst_queue2_handle_src_query (GST_QUEUE2_CAST (element)->srcpad, query);
2618 gst_queue2_update_upstream_size (GstQueue2 * queue)
2620 GstFormat fmt = GST_FORMAT_BYTES;
2621 gint64 upstream_size = -1;
2623 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &upstream_size)) {
2624 GST_INFO_OBJECT (queue, "upstream size: %" G_GINT64_FORMAT, upstream_size);
2625 queue->upstream_size = upstream_size;
2629 static GstFlowReturn
2630 gst_queue2_get_range (GstPad * pad, guint64 offset, guint length,
2631 GstBuffer ** buffer)
2636 queue = GST_QUEUE2_CAST (gst_pad_get_parent (pad));
2638 length = (length == -1) ? DEFAULT_BUFFER_SIZE : length;
2639 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2640 offset = (offset == -1) ? queue->current->reading_pos : offset;
2642 GST_DEBUG_OBJECT (queue,
2643 "Getting range: offset %" G_GUINT64_FORMAT ", length %u", offset, length);
2645 /* catch any reads beyond the size of the file here to make sure queue2
2646 * doesn't send seek events beyond the size of the file upstream, since
2647 * that would confuse elements such as souphttpsrc and/or http servers.
2648 * Demuxers often just loop until EOS at the end of the file to figure out
2649 * when they've read all the end-headers or index chunks. */
2650 if (G_UNLIKELY (offset >= queue->upstream_size)) {
2651 gst_queue2_update_upstream_size (queue);
2652 if (queue->upstream_size > 0 && offset >= queue->upstream_size)
2653 goto out_unexpected;
2656 if (G_UNLIKELY (offset + length > queue->upstream_size)) {
2657 gst_queue2_update_upstream_size (queue);
2658 if (queue->upstream_size > 0 && offset + length >= queue->upstream_size) {
2659 length = queue->upstream_size - offset;
2660 GST_DEBUG_OBJECT (queue, "adjusting length downto %d", length);
2664 /* FIXME - function will block when the range is not yet available */
2665 ret = gst_queue2_create_read (queue, offset, length, buffer);
2666 GST_QUEUE2_MUTEX_UNLOCK (queue);
2668 gst_object_unref (queue);
2675 ret = queue->srcresult;
2677 GST_DEBUG_OBJECT (queue, "we are flushing");
2678 GST_QUEUE2_MUTEX_UNLOCK (queue);
2679 gst_object_unref (queue);
2684 GST_DEBUG_OBJECT (queue, "read beyond end of file");
2685 GST_QUEUE2_MUTEX_UNLOCK (queue);
2686 gst_object_unref (queue);
2687 return GST_FLOW_UNEXPECTED;
2692 gst_queue2_src_checkgetrange_function (GstPad * pad)
2697 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2699 /* we can operate in pull mode when we are using a tempfile */
2700 ret = !QUEUE_IS_USING_QUEUE (queue);
2702 gst_object_unref (GST_OBJECT (queue));
2707 /* sink currently only operates in push mode */
2709 gst_queue2_sink_activate_push (GstPad * pad, gboolean active)
2711 gboolean result = TRUE;
2714 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2717 GST_QUEUE2_MUTEX_LOCK (queue);
2718 GST_DEBUG_OBJECT (queue, "activating push mode");
2719 queue->srcresult = GST_FLOW_OK;
2720 queue->sinkresult = GST_FLOW_OK;
2721 queue->is_eos = FALSE;
2722 queue->unexpected = FALSE;
2723 reset_rate_timer (queue);
2724 GST_QUEUE2_MUTEX_UNLOCK (queue);
2726 /* unblock chain function */
2727 GST_QUEUE2_MUTEX_LOCK (queue);
2728 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2729 queue->srcresult = GST_FLOW_WRONG_STATE;
2730 queue->sinkresult = GST_FLOW_WRONG_STATE;
2731 gst_queue2_locked_flush (queue);
2732 GST_QUEUE2_MUTEX_UNLOCK (queue);
2735 gst_object_unref (queue);
2740 /* src operating in push mode, we start a task on the source pad that pushes out
2741 * buffers from the queue */
2743 gst_queue2_src_activate_push (GstPad * pad, gboolean active)
2745 gboolean result = FALSE;
2748 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2751 GST_QUEUE2_MUTEX_LOCK (queue);
2752 GST_DEBUG_OBJECT (queue, "activating push mode");
2753 queue->srcresult = GST_FLOW_OK;
2754 queue->sinkresult = GST_FLOW_OK;
2755 queue->is_eos = FALSE;
2756 queue->unexpected = FALSE;
2757 result = gst_pad_start_task (pad, (GstTaskFunction) gst_queue2_loop, pad);
2758 GST_QUEUE2_MUTEX_UNLOCK (queue);
2760 /* unblock loop function */
2761 GST_QUEUE2_MUTEX_LOCK (queue);
2762 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2763 queue->srcresult = GST_FLOW_WRONG_STATE;
2764 queue->sinkresult = GST_FLOW_WRONG_STATE;
2765 /* the item add signal will unblock */
2766 GST_QUEUE2_SIGNAL_ADD (queue);
2767 GST_QUEUE2_MUTEX_UNLOCK (queue);
2769 /* step 2, make sure streaming finishes */
2770 result = gst_pad_stop_task (pad);
2773 gst_object_unref (queue);
2778 /* pull mode, downstream will call our getrange function */
2780 gst_queue2_src_activate_pull (GstPad * pad, gboolean active)
2785 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2788 GST_QUEUE2_MUTEX_LOCK (queue);
2789 if (!QUEUE_IS_USING_QUEUE (queue)) {
2790 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2791 /* open the temp file now */
2792 result = gst_queue2_open_temp_location_file (queue);
2793 } else if (!queue->ring_buffer) {
2794 queue->ring_buffer = g_malloc (queue->ring_buffer_max_size);
2795 result = !!queue->ring_buffer;
2800 GST_DEBUG_OBJECT (queue, "activating pull mode");
2801 init_ranges (queue);
2802 queue->srcresult = GST_FLOW_OK;
2803 queue->sinkresult = GST_FLOW_OK;
2804 queue->is_eos = FALSE;
2805 queue->unexpected = FALSE;
2806 queue->upstream_size = 0;
2807 GST_QUEUE2_MUTEX_UNLOCK (queue);
2809 GST_QUEUE2_MUTEX_LOCK (queue);
2810 GST_DEBUG_OBJECT (queue, "no temp file, cannot activate pull mode");
2811 /* this is not allowed, we cannot operate in pull mode without a temp
2813 queue->srcresult = GST_FLOW_WRONG_STATE;
2814 queue->sinkresult = GST_FLOW_WRONG_STATE;
2816 GST_QUEUE2_MUTEX_UNLOCK (queue);
2819 GST_QUEUE2_MUTEX_LOCK (queue);
2820 GST_DEBUG_OBJECT (queue, "deactivating pull mode");
2821 queue->srcresult = GST_FLOW_WRONG_STATE;
2822 queue->sinkresult = GST_FLOW_WRONG_STATE;
2823 /* this will unlock getrange */
2824 GST_QUEUE2_SIGNAL_ADD (queue);
2826 GST_QUEUE2_MUTEX_UNLOCK (queue);
2828 gst_object_unref (queue);
2833 static GstStateChangeReturn
2834 gst_queue2_change_state (GstElement * element, GstStateChange transition)
2837 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
2839 queue = GST_QUEUE2 (element);
2841 switch (transition) {
2842 case GST_STATE_CHANGE_NULL_TO_READY:
2844 case GST_STATE_CHANGE_READY_TO_PAUSED:
2845 GST_QUEUE2_MUTEX_LOCK (queue);
2846 if (!QUEUE_IS_USING_QUEUE (queue)) {
2847 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2848 if (!gst_queue2_open_temp_location_file (queue))
2849 ret = GST_STATE_CHANGE_FAILURE;
2851 if (queue->ring_buffer) {
2852 g_free (queue->ring_buffer);
2853 queue->ring_buffer = NULL;
2855 if (!(queue->ring_buffer = g_malloc (queue->ring_buffer_max_size)))
2856 ret = GST_STATE_CHANGE_FAILURE;
2858 init_ranges (queue);
2860 queue->segment_event_received = FALSE;
2861 queue->starting_segment = NULL;
2862 GST_QUEUE2_MUTEX_UNLOCK (queue);
2864 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2870 if (ret == GST_STATE_CHANGE_FAILURE)
2873 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2875 if (ret == GST_STATE_CHANGE_FAILURE)
2878 switch (transition) {
2879 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2881 case GST_STATE_CHANGE_PAUSED_TO_READY:
2882 GST_QUEUE2_MUTEX_LOCK (queue);
2883 if (!QUEUE_IS_USING_QUEUE (queue)) {
2884 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2885 gst_queue2_close_temp_location_file (queue);
2886 } else if (queue->ring_buffer) {
2887 g_free (queue->ring_buffer);
2888 queue->ring_buffer = NULL;
2890 clean_ranges (queue);
2892 if (queue->starting_segment != NULL) {
2893 gst_event_unref (queue->starting_segment);
2894 queue->starting_segment = NULL;
2896 GST_QUEUE2_MUTEX_UNLOCK (queue);
2898 case GST_STATE_CHANGE_READY_TO_NULL:
2907 /* changing the capacity of the queue must wake up
2908 * the _chain function, it might have more room now
2909 * to store the buffer/event in the queue */
2910 #define QUEUE_CAPACITY_CHANGE(q)\
2911 GST_QUEUE2_SIGNAL_DEL (queue);
2913 /* Changing the minimum required fill level must
2914 * wake up the _loop function as it might now
2915 * be able to preceed.
2917 #define QUEUE_THRESHOLD_CHANGE(q)\
2918 GST_QUEUE2_SIGNAL_ADD (queue);
2921 gst_queue2_set_temp_template (GstQueue2 * queue, const gchar * template)
2925 /* the element must be stopped in order to do this */
2926 GST_OBJECT_LOCK (queue);
2927 state = GST_STATE (queue);
2928 if (state != GST_STATE_READY && state != GST_STATE_NULL)
2930 GST_OBJECT_UNLOCK (queue);
2932 /* set new location */
2933 g_free (queue->temp_template);
2934 queue->temp_template = g_strdup (template);
2941 GST_WARNING_OBJECT (queue, "setting temp-template property in wrong state");
2942 GST_OBJECT_UNLOCK (queue);
2947 gst_queue2_set_property (GObject * object,
2948 guint prop_id, const GValue * value, GParamSpec * pspec)
2950 GstQueue2 *queue = GST_QUEUE2 (object);
2952 /* someone could change levels here, and since this
2953 * affects the get/put funcs, we need to lock for safety. */
2954 GST_QUEUE2_MUTEX_LOCK (queue);
2957 case PROP_MAX_SIZE_BYTES:
2958 queue->max_level.bytes = g_value_get_uint (value);
2959 QUEUE_CAPACITY_CHANGE (queue);
2961 case PROP_MAX_SIZE_BUFFERS:
2962 queue->max_level.buffers = g_value_get_uint (value);
2963 QUEUE_CAPACITY_CHANGE (queue);
2965 case PROP_MAX_SIZE_TIME:
2966 queue->max_level.time = g_value_get_uint64 (value);
2967 /* set rate_time to the same value. We use an extra field in the level
2968 * structure so that we can easily access and compare it */
2969 queue->max_level.rate_time = queue->max_level.time;
2970 QUEUE_CAPACITY_CHANGE (queue);
2972 case PROP_USE_BUFFERING:
2973 queue->use_buffering = g_value_get_boolean (value);
2975 case PROP_USE_RATE_ESTIMATE:
2976 queue->use_rate_estimate = g_value_get_boolean (value);
2978 case PROP_LOW_PERCENT:
2979 queue->low_percent = g_value_get_int (value);
2981 case PROP_HIGH_PERCENT:
2982 queue->high_percent = g_value_get_int (value);
2984 case PROP_TEMP_TEMPLATE:
2985 gst_queue2_set_temp_template (queue, g_value_get_string (value));
2987 case PROP_TEMP_LOCATION:
2988 g_free (queue->temp_location);
2989 queue->temp_location = g_value_dup_string (value);
2990 /* you can set the property back to NULL to make it use the temp-tmpl
2992 queue->temp_location_set = queue->temp_location != NULL;
2994 case PROP_TEMP_REMOVE:
2995 queue->temp_remove = g_value_get_boolean (value);
2997 case PROP_RING_BUFFER_MAX_SIZE:
2998 queue->ring_buffer_max_size = g_value_get_uint64 (value);
3001 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3005 GST_QUEUE2_MUTEX_UNLOCK (queue);
3009 gst_queue2_get_property (GObject * object,
3010 guint prop_id, GValue * value, GParamSpec * pspec)
3012 GstQueue2 *queue = GST_QUEUE2 (object);
3014 GST_QUEUE2_MUTEX_LOCK (queue);
3017 case PROP_CUR_LEVEL_BYTES:
3018 g_value_set_uint (value, queue->cur_level.bytes);
3020 case PROP_CUR_LEVEL_BUFFERS:
3021 g_value_set_uint (value, queue->cur_level.buffers);
3023 case PROP_CUR_LEVEL_TIME:
3024 g_value_set_uint64 (value, queue->cur_level.time);
3026 case PROP_MAX_SIZE_BYTES:
3027 g_value_set_uint (value, queue->max_level.bytes);
3029 case PROP_MAX_SIZE_BUFFERS:
3030 g_value_set_uint (value, queue->max_level.buffers);
3032 case PROP_MAX_SIZE_TIME:
3033 g_value_set_uint64 (value, queue->max_level.time);
3035 case PROP_USE_BUFFERING:
3036 g_value_set_boolean (value, queue->use_buffering);
3038 case PROP_USE_RATE_ESTIMATE:
3039 g_value_set_boolean (value, queue->use_rate_estimate);
3041 case PROP_LOW_PERCENT:
3042 g_value_set_int (value, queue->low_percent);
3044 case PROP_HIGH_PERCENT:
3045 g_value_set_int (value, queue->high_percent);
3047 case PROP_TEMP_TEMPLATE:
3048 g_value_set_string (value, queue->temp_template);
3050 case PROP_TEMP_LOCATION:
3051 g_value_set_string (value, queue->temp_location);
3053 case PROP_TEMP_REMOVE:
3054 g_value_set_boolean (value, queue->temp_remove);
3056 case PROP_RING_BUFFER_MAX_SIZE:
3057 g_value_set_uint64 (value, queue->ring_buffer_max_size);
3060 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3064 GST_QUEUE2_MUTEX_UNLOCK (queue);