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); \
212 #define _do_init(bla) \
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");
217 GST_BOILERPLATE_FULL (GstQueue2, gst_queue2, GstElement, GST_TYPE_ELEMENT,
220 static void gst_queue2_finalize (GObject * object);
222 static void gst_queue2_set_property (GObject * object,
223 guint prop_id, const GValue * value, GParamSpec * pspec);
224 static void gst_queue2_get_property (GObject * object,
225 guint prop_id, GValue * value, GParamSpec * pspec);
227 static GstFlowReturn gst_queue2_chain (GstPad * pad, GstBuffer * buffer);
228 static GstFlowReturn gst_queue2_bufferalloc (GstPad * pad, guint64 offset,
229 guint size, GstCaps * caps, GstBuffer ** buf);
230 static GstFlowReturn gst_queue2_push_one (GstQueue2 * queue);
231 static void gst_queue2_loop (GstPad * pad);
233 static gboolean gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event);
235 static gboolean gst_queue2_handle_src_event (GstPad * pad, GstEvent * event);
236 static gboolean gst_queue2_handle_src_query (GstPad * pad, GstQuery * query);
237 static gboolean gst_queue2_handle_query (GstElement * element,
240 static GstCaps *gst_queue2_getcaps (GstPad * pad);
241 static gboolean gst_queue2_acceptcaps (GstPad * pad, GstCaps * caps);
243 static GstFlowReturn gst_queue2_get_range (GstPad * pad, guint64 offset,
244 guint length, GstBuffer ** buffer);
245 static gboolean gst_queue2_src_checkgetrange_function (GstPad * pad);
247 static gboolean gst_queue2_src_activate_pull (GstPad * pad, gboolean active);
248 static gboolean gst_queue2_src_activate_push (GstPad * pad, gboolean active);
249 static gboolean gst_queue2_sink_activate_push (GstPad * pad, gboolean active);
250 static GstStateChangeReturn gst_queue2_change_state (GstElement * element,
251 GstStateChange transition);
253 static gboolean gst_queue2_is_empty (GstQueue2 * queue);
254 static gboolean gst_queue2_is_filled (GstQueue2 * queue);
256 static void update_cur_level (GstQueue2 * queue, GstQueue2Range * range);
259 /* static guint gst_queue2_signals[LAST_SIGNAL] = { 0 }; */
262 gst_queue2_base_init (gpointer g_class)
264 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
266 gst_element_class_add_pad_template (gstelement_class,
267 gst_static_pad_template_get (&srctemplate));
268 gst_element_class_add_pad_template (gstelement_class,
269 gst_static_pad_template_get (&sinktemplate));
271 gst_element_class_set_details_simple (gstelement_class, "Queue 2",
274 "Erik Walthinsen <omega@cse.ogi.edu>, "
275 "Wim Taymans <wim.taymans@gmail.com>");
279 gst_queue2_class_init (GstQueue2Class * klass)
281 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
282 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
284 gobject_class->set_property = gst_queue2_set_property;
285 gobject_class->get_property = gst_queue2_get_property;
288 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BYTES,
289 g_param_spec_uint ("current-level-bytes", "Current level (kB)",
290 "Current amount of data in the queue (bytes)",
291 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
292 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_BUFFERS,
293 g_param_spec_uint ("current-level-buffers", "Current level (buffers)",
294 "Current number of buffers in the queue",
295 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
296 g_object_class_install_property (gobject_class, PROP_CUR_LEVEL_TIME,
297 g_param_spec_uint64 ("current-level-time", "Current level (ns)",
298 "Current amount of data in the queue (in ns)",
299 0, G_MAXUINT64, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
301 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BYTES,
302 g_param_spec_uint ("max-size-bytes", "Max. size (kB)",
303 "Max. amount of data in the queue (bytes, 0=disable)",
304 0, G_MAXUINT, DEFAULT_MAX_SIZE_BYTES,
305 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
306 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BUFFERS,
307 g_param_spec_uint ("max-size-buffers", "Max. size (buffers)",
308 "Max. number of buffers in the queue (0=disable)", 0, G_MAXUINT,
309 DEFAULT_MAX_SIZE_BUFFERS,
310 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
311 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_TIME,
312 g_param_spec_uint64 ("max-size-time", "Max. size (ns)",
313 "Max. amount of data in the queue (in ns, 0=disable)", 0, G_MAXUINT64,
314 DEFAULT_MAX_SIZE_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
316 g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
317 g_param_spec_boolean ("use-buffering", "Use buffering",
318 "Emit GST_MESSAGE_BUFFERING based on low-/high-percent thresholds",
319 DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
320 g_object_class_install_property (gobject_class, PROP_USE_RATE_ESTIMATE,
321 g_param_spec_boolean ("use-rate-estimate", "Use Rate Estimate",
322 "Estimate the bitrate of the stream to calculate time level",
323 DEFAULT_USE_RATE_ESTIMATE,
324 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
325 g_object_class_install_property (gobject_class, PROP_LOW_PERCENT,
326 g_param_spec_int ("low-percent", "Low percent",
327 "Low threshold for buffering to start. Only used if use-buffering is True",
328 0, 100, DEFAULT_LOW_PERCENT,
329 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
330 g_object_class_install_property (gobject_class, PROP_HIGH_PERCENT,
331 g_param_spec_int ("high-percent", "High percent",
332 "High threshold for buffering to finish. Only used if use-buffering is True",
333 0, 100, DEFAULT_HIGH_PERCENT,
334 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
336 g_object_class_install_property (gobject_class, PROP_TEMP_TEMPLATE,
337 g_param_spec_string ("temp-template", "Temporary File Template",
338 "File template to store temporary files in, should contain directory "
339 "and XXXXXX. (NULL == disabled)",
340 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
342 g_object_class_install_property (gobject_class, PROP_TEMP_LOCATION,
343 g_param_spec_string ("temp-location", "Temporary File Location",
344 "Location to store temporary files in (Deprecated: Only read this "
345 "property, use temp-template to configure the name template)",
346 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
349 * GstQueue2:temp-remove
351 * When temp-template is set, remove the temporary file when going to READY.
355 g_object_class_install_property (gobject_class, PROP_TEMP_REMOVE,
356 g_param_spec_boolean ("temp-remove", "Remove the Temporary File",
357 "Remove the temp-location after use",
358 DEFAULT_TEMP_REMOVE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
361 * GstQueue2:ring-buffer-max-size
363 * The maximum size of the ring buffer in bytes. If set to 0, the ring
364 * buffer is disabled. Default 0.
368 g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
369 g_param_spec_uint64 ("ring-buffer-max-size",
370 "Max. ring buffer size (bytes)",
371 "Max. amount of data in the ring buffer (bytes, 0 = disabled)",
372 0, G_MAXUINT64, DEFAULT_RING_BUFFER_MAX_SIZE,
373 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
375 /* set several parent class virtual functions */
376 gobject_class->finalize = gst_queue2_finalize;
378 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_queue2_change_state);
379 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_queue2_handle_query);
383 gst_queue2_init (GstQueue2 * queue, GstQueue2Class * g_class)
385 queue->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
387 gst_pad_set_chain_function (queue->sinkpad,
388 GST_DEBUG_FUNCPTR (gst_queue2_chain));
389 gst_pad_set_activatepush_function (queue->sinkpad,
390 GST_DEBUG_FUNCPTR (gst_queue2_sink_activate_push));
391 gst_pad_set_event_function (queue->sinkpad,
392 GST_DEBUG_FUNCPTR (gst_queue2_handle_sink_event));
393 gst_pad_set_getcaps_function (queue->sinkpad,
394 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
395 gst_pad_set_acceptcaps_function (queue->sinkpad,
396 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
397 gst_pad_set_bufferalloc_function (queue->sinkpad,
398 GST_DEBUG_FUNCPTR (gst_queue2_bufferalloc));
399 gst_element_add_pad (GST_ELEMENT (queue), queue->sinkpad);
401 queue->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
403 gst_pad_set_activatepull_function (queue->srcpad,
404 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_pull));
405 gst_pad_set_activatepush_function (queue->srcpad,
406 GST_DEBUG_FUNCPTR (gst_queue2_src_activate_push));
407 gst_pad_set_getrange_function (queue->srcpad,
408 GST_DEBUG_FUNCPTR (gst_queue2_get_range));
409 gst_pad_set_checkgetrange_function (queue->srcpad,
410 GST_DEBUG_FUNCPTR (gst_queue2_src_checkgetrange_function));
411 gst_pad_set_getcaps_function (queue->srcpad,
412 GST_DEBUG_FUNCPTR (gst_queue2_getcaps));
413 gst_pad_set_acceptcaps_function (queue->srcpad,
414 GST_DEBUG_FUNCPTR (gst_queue2_acceptcaps));
415 gst_pad_set_event_function (queue->srcpad,
416 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_event));
417 gst_pad_set_query_function (queue->srcpad,
418 GST_DEBUG_FUNCPTR (gst_queue2_handle_src_query));
419 gst_element_add_pad (GST_ELEMENT (queue), queue->srcpad);
422 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
423 queue->max_level.buffers = DEFAULT_MAX_SIZE_BUFFERS;
424 queue->max_level.bytes = DEFAULT_MAX_SIZE_BYTES;
425 queue->max_level.time = DEFAULT_MAX_SIZE_TIME;
426 queue->max_level.rate_time = DEFAULT_MAX_SIZE_TIME;
427 queue->use_buffering = DEFAULT_USE_BUFFERING;
428 queue->use_rate_estimate = DEFAULT_USE_RATE_ESTIMATE;
429 queue->low_percent = DEFAULT_LOW_PERCENT;
430 queue->high_percent = DEFAULT_HIGH_PERCENT;
432 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
433 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
435 queue->sinktime = GST_CLOCK_TIME_NONE;
436 queue->srctime = GST_CLOCK_TIME_NONE;
437 queue->sink_tainted = TRUE;
438 queue->src_tainted = TRUE;
440 queue->srcresult = GST_FLOW_WRONG_STATE;
441 queue->sinkresult = GST_FLOW_WRONG_STATE;
442 queue->is_eos = FALSE;
443 queue->in_timer = g_timer_new ();
444 queue->out_timer = g_timer_new ();
446 queue->qlock = g_mutex_new ();
447 queue->waiting_add = FALSE;
448 queue->item_add = g_cond_new ();
449 queue->waiting_del = FALSE;
450 queue->item_del = g_cond_new ();
451 queue->queue = g_queue_new ();
453 queue->buffering_percent = 100;
455 /* tempfile related */
456 queue->temp_template = NULL;
457 queue->temp_location = NULL;
458 queue->temp_location_set = FALSE;
459 queue->temp_remove = DEFAULT_TEMP_REMOVE;
461 queue->ring_buffer = NULL;
462 queue->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
464 GST_DEBUG_OBJECT (queue,
465 "initialized queue's not_empty & not_full conditions");
468 /* called only once, as opposed to dispose */
470 gst_queue2_finalize (GObject * object)
472 GstQueue2 *queue = GST_QUEUE2 (object);
474 GST_DEBUG_OBJECT (queue, "finalizing queue");
476 while (!g_queue_is_empty (queue->queue)) {
477 GstMiniObject *data = g_queue_pop_head (queue->queue);
479 gst_mini_object_unref (data);
482 g_queue_free (queue->queue);
483 g_mutex_free (queue->qlock);
484 g_cond_free (queue->item_add);
485 g_cond_free (queue->item_del);
486 g_timer_destroy (queue->in_timer);
487 g_timer_destroy (queue->out_timer);
489 /* temp_file path cleanup */
490 g_free (queue->temp_template);
491 g_free (queue->temp_location);
493 G_OBJECT_CLASS (parent_class)->finalize (object);
497 debug_ranges (GstQueue2 * queue)
499 GstQueue2Range *walk;
501 for (walk = queue->ranges; walk; walk = walk->next) {
502 GST_DEBUG_OBJECT (queue,
503 "range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "] (rb [%"
504 G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "]), reading %" G_GUINT64_FORMAT
505 " current range? %s", walk->offset, walk->writing_pos, walk->rb_offset,
506 walk->rb_writing_pos, walk->reading_pos,
507 walk == queue->current ? "**y**" : " n ");
511 /* clear all the downloaded ranges */
513 clean_ranges (GstQueue2 * queue)
515 GST_DEBUG_OBJECT (queue, "clean queue ranges");
517 g_slice_free_chain (GstQueue2Range, queue->ranges, next);
518 queue->ranges = NULL;
519 queue->current = NULL;
522 /* find a range that contains @offset or NULL when nothing does */
523 static GstQueue2Range *
524 find_range (GstQueue2 * queue, guint64 offset)
526 GstQueue2Range *range = NULL;
527 GstQueue2Range *walk;
529 /* first do a quick check for the current range */
530 for (walk = queue->ranges; walk; walk = walk->next) {
531 if (offset >= walk->offset && offset <= walk->writing_pos) {
532 /* we can reuse an existing range */
538 GST_DEBUG_OBJECT (queue,
539 "found range for %" G_GUINT64_FORMAT ": [%" G_GUINT64_FORMAT "-%"
540 G_GUINT64_FORMAT "]", offset, range->offset, range->writing_pos);
542 GST_DEBUG_OBJECT (queue, "no range for %" G_GUINT64_FORMAT, offset);
548 update_cur_level (GstQueue2 * queue, GstQueue2Range * range)
550 guint64 max_reading_pos, writing_pos;
552 writing_pos = range->writing_pos;
553 max_reading_pos = range->max_reading_pos;
555 if (writing_pos > max_reading_pos)
556 queue->cur_level.bytes = writing_pos - max_reading_pos;
558 queue->cur_level.bytes = 0;
561 /* make a new range for @offset or reuse an existing range */
562 static GstQueue2Range *
563 add_range (GstQueue2 * queue, guint64 offset)
565 GstQueue2Range *range, *prev, *next;
567 GST_DEBUG_OBJECT (queue, "find range for %" G_GUINT64_FORMAT, offset);
569 if ((range = find_range (queue, offset))) {
570 GST_DEBUG_OBJECT (queue,
571 "reusing range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, range->offset,
573 range->writing_pos = offset;
575 GST_DEBUG_OBJECT (queue,
576 "new range %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT, offset, offset);
578 range = g_slice_new0 (GstQueue2Range);
579 range->offset = offset;
580 /* we want to write to the next location in the ring buffer */
581 range->rb_offset = queue->current ? queue->current->rb_writing_pos : 0;
582 range->writing_pos = offset;
583 range->rb_writing_pos = range->rb_offset;
584 range->reading_pos = offset;
585 range->max_reading_pos = offset;
589 next = queue->ranges;
591 if (next->offset > offset) {
592 /* insert before next */
593 GST_DEBUG_OBJECT (queue,
594 "insert before range %p, offset %" G_GUINT64_FORMAT, next,
606 queue->ranges = range;
608 debug_ranges (queue);
610 /* update the stats for this range */
611 update_cur_level (queue, range);
617 /* clear and init the download ranges for offset 0 */
619 init_ranges (GstQueue2 * queue)
621 GST_DEBUG_OBJECT (queue, "init queue ranges");
623 /* get rid of all the current ranges */
624 clean_ranges (queue);
625 /* make a range for offset 0 */
626 queue->current = add_range (queue, 0);
630 gst_queue2_acceptcaps (GstPad * pad, GstCaps * caps)
636 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
638 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
639 result = gst_pad_peer_accept_caps (otherpad, caps);
645 gst_queue2_getcaps (GstPad * pad)
651 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
652 if (G_UNLIKELY (queue == NULL))
653 return gst_caps_new_any ();
655 otherpad = (pad == queue->srcpad ? queue->sinkpad : queue->srcpad);
656 result = gst_pad_peer_get_caps (otherpad);
658 result = gst_caps_new_any ();
660 gst_object_unref (queue);
666 gst_queue2_bufferalloc (GstPad * pad, guint64 offset, guint size,
667 GstCaps * caps, GstBuffer ** buf)
670 GstFlowReturn result;
672 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
674 /* Forward to src pad, without setting caps on the src pad */
675 result = gst_pad_alloc_buffer (queue->srcpad, offset, size, caps, buf);
680 /* calculate the diff between running time on the sink and src of the queue.
681 * This is the total amount of time in the queue. */
683 update_time_level (GstQueue2 * queue)
685 if (queue->sink_tainted) {
687 gst_segment_to_running_time (&queue->sink_segment, GST_FORMAT_TIME,
688 queue->sink_segment.last_stop);
689 queue->sink_tainted = FALSE;
692 if (queue->src_tainted) {
694 gst_segment_to_running_time (&queue->src_segment, GST_FORMAT_TIME,
695 queue->src_segment.last_stop);
696 queue->src_tainted = FALSE;
699 GST_DEBUG_OBJECT (queue, "sink %" GST_TIME_FORMAT ", src %" GST_TIME_FORMAT,
700 GST_TIME_ARGS (queue->sinktime), GST_TIME_ARGS (queue->srctime));
702 if (queue->sinktime != GST_CLOCK_TIME_NONE
703 && queue->srctime != GST_CLOCK_TIME_NONE
704 && queue->sinktime >= queue->srctime)
705 queue->cur_level.time = queue->sinktime - queue->srctime;
707 queue->cur_level.time = 0;
710 /* take a NEWSEGMENT event and apply the values to segment, updating the time
713 apply_segment (GstQueue2 * queue, GstEvent * event, GstSegment * segment,
719 gint64 start, stop, time;
721 gst_event_parse_new_segment_full (event, &update, &rate, &arate,
722 &format, &start, &stop, &time);
724 GST_DEBUG_OBJECT (queue,
725 "received NEWSEGMENT update %d, rate %lf, applied rate %lf, "
727 "%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
728 G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);
730 if (format == GST_FORMAT_BYTES) {
731 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
732 /* start is where we'll be getting from and as such writing next */
733 queue->current = add_range (queue, start);
734 /* update the stats for this range */
735 update_cur_level (queue, queue->current);
739 /* now configure the values, we use these to track timestamps on the
741 if (format != GST_FORMAT_TIME) {
742 /* non-time format, pretent the current time segment is closed with a
743 * 0 start and unknown stop time. */
745 format = GST_FORMAT_TIME;
750 gst_segment_set_newsegment_full (segment, update,
751 rate, arate, format, start, stop, time);
753 GST_DEBUG_OBJECT (queue,
754 "configured NEWSEGMENT %" GST_SEGMENT_FORMAT, segment);
757 queue->sink_tainted = TRUE;
759 queue->src_tainted = TRUE;
761 /* segment can update the time level of the queue */
762 update_time_level (queue);
765 /* take a buffer and update segment, updating the time level of the queue. */
767 apply_buffer (GstQueue2 * queue, GstBuffer * buffer, GstSegment * segment,
770 GstClockTime duration, timestamp;
772 timestamp = GST_BUFFER_TIMESTAMP (buffer);
773 duration = GST_BUFFER_DURATION (buffer);
775 /* if no timestamp is set, assume it's continuous with the previous
777 if (timestamp == GST_CLOCK_TIME_NONE)
778 timestamp = segment->last_stop;
781 if (duration != GST_CLOCK_TIME_NONE)
782 timestamp += duration;
784 GST_DEBUG_OBJECT (queue, "last_stop updated to %" GST_TIME_FORMAT,
785 GST_TIME_ARGS (timestamp));
787 gst_segment_set_last_stop (segment, GST_FORMAT_TIME, timestamp);
790 queue->sink_tainted = TRUE;
792 queue->src_tainted = TRUE;
794 /* calc diff with other end */
795 update_time_level (queue);
799 update_buffering (GstQueue2 * queue)
802 gboolean post = FALSE;
804 if (queue->high_percent <= 0)
807 #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)
810 /* on EOS we are always 100% full, we set the var here so that it we can
811 * reuse the logic below to stop buffering */
813 GST_LOG_OBJECT (queue, "we are EOS");
815 /* figure out the percent we are filled, we take the max of all formats. */
817 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
818 percent = GET_PERCENT (bytes, 0);
820 guint64 rb_size = queue->ring_buffer_max_size;
821 percent = GET_PERCENT (bytes, rb_size);
823 percent = MAX (percent, GET_PERCENT (time, 0));
824 percent = MAX (percent, GET_PERCENT (buffers, 0));
826 /* also apply the rate estimate when we need to */
827 if (queue->use_rate_estimate)
828 percent = MAX (percent, GET_PERCENT (rate_time, 0));
831 if (queue->is_buffering) {
833 /* if we were buffering see if we reached the high watermark */
834 if (percent >= queue->high_percent)
835 queue->is_buffering = FALSE;
837 /* we were not buffering, check if we need to start buffering if we drop
838 * below the low threshold */
839 if (percent < queue->low_percent) {
840 queue->is_buffering = TRUE;
841 queue->buffering_iteration++;
847 GstBufferingMode mode;
848 gint64 buffering_left = -1;
850 /* scale to high percent so that it becomes the 100% mark */
851 percent = percent * 100 / queue->high_percent;
856 if (percent != queue->buffering_percent) {
857 queue->buffering_percent = percent;
859 if (!QUEUE_IS_USING_QUEUE (queue)) {
860 GstFormat fmt = GST_FORMAT_BYTES;
863 if (QUEUE_IS_USING_RING_BUFFER (queue))
864 mode = GST_BUFFERING_TIMESHIFT;
866 mode = GST_BUFFERING_DOWNLOAD;
868 if (queue->byte_in_rate > 0) {
869 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &duration))
871 (gdouble) ((duration -
872 queue->current->writing_pos) * 1000) / queue->byte_in_rate;
874 buffering_left = G_MAXINT64;
877 mode = GST_BUFFERING_STREAM;
880 GST_DEBUG_OBJECT (queue, "buffering %d percent", (gint) percent);
881 message = gst_message_new_buffering (GST_OBJECT_CAST (queue),
883 gst_message_set_buffering_stats (message, mode,
884 queue->byte_in_rate, queue->byte_out_rate, buffering_left);
886 gst_element_post_message (GST_ELEMENT_CAST (queue), message);
889 GST_DEBUG_OBJECT (queue, "filled %d percent", (gint) percent);
896 reset_rate_timer (GstQueue2 * queue)
899 queue->bytes_out = 0;
900 queue->byte_in_rate = 0.0;
901 queue->byte_in_period = 0;
902 queue->byte_out_rate = 0.0;
903 queue->last_in_elapsed = 0.0;
904 queue->last_out_elapsed = 0.0;
905 queue->in_timer_started = FALSE;
906 queue->out_timer_started = FALSE;
909 /* the interval in seconds to recalculate the rate */
910 #define RATE_INTERVAL 0.2
911 /* Tuning for rate estimation. We use a large window for the input rate because
912 * it should be stable when connected to a network. The output rate is less
913 * stable (the elements preroll, queues behind a demuxer fill, ...) and should
914 * therefore adapt more quickly.
915 * However, initial input rate may be subject to a burst, and should therefore
916 * initially also adapt more quickly to changes, and only later on give higher
917 * weight to previous values. */
918 #define AVG_IN(avg,val,w1,w2) ((avg) * (w1) + (val) * (w2)) / ((w1) + (w2))
919 #define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
922 update_in_rates (GstQueue2 * queue)
924 gdouble elapsed, period;
925 gdouble byte_in_rate;
927 if (!queue->in_timer_started) {
928 queue->in_timer_started = TRUE;
929 g_timer_start (queue->in_timer);
933 elapsed = g_timer_elapsed (queue->in_timer, NULL);
935 /* recalc after each interval. */
936 if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
937 period = elapsed - queue->last_in_elapsed;
939 GST_DEBUG_OBJECT (queue,
940 "rates: period %f, in %" G_GUINT64_FORMAT ", global period %f",
941 period, queue->bytes_in, queue->byte_in_period);
943 byte_in_rate = queue->bytes_in / period;
945 if (queue->byte_in_rate == 0.0)
946 queue->byte_in_rate = byte_in_rate;
948 queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate,
949 (double) queue->byte_in_period, period);
951 /* another data point, cap at 16 for long time running average */
952 if (queue->byte_in_period < 16 * RATE_INTERVAL)
953 queue->byte_in_period += period;
955 /* reset the values to calculate rate over the next interval */
956 queue->last_in_elapsed = elapsed;
960 if (queue->byte_in_rate > 0.0) {
961 queue->cur_level.rate_time =
962 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
964 GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
965 queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
969 update_out_rates (GstQueue2 * queue)
971 gdouble elapsed, period;
972 gdouble byte_out_rate;
974 if (!queue->out_timer_started) {
975 queue->out_timer_started = TRUE;
976 g_timer_start (queue->out_timer);
980 elapsed = g_timer_elapsed (queue->out_timer, NULL);
982 /* recalc after each interval. */
983 if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
984 period = elapsed - queue->last_out_elapsed;
986 GST_DEBUG_OBJECT (queue,
987 "rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
989 byte_out_rate = queue->bytes_out / period;
991 if (queue->byte_out_rate == 0.0)
992 queue->byte_out_rate = byte_out_rate;
994 queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
996 /* reset the values to calculate rate over the next interval */
997 queue->last_out_elapsed = elapsed;
998 queue->bytes_out = 0;
1000 if (queue->byte_in_rate > 0.0) {
1001 queue->cur_level.rate_time =
1002 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
1004 GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
1005 queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
1009 update_cur_pos (GstQueue2 * queue, GstQueue2Range * range, guint64 pos)
1011 guint64 reading_pos, max_reading_pos;
1014 max_reading_pos = range->max_reading_pos;
1016 max_reading_pos = MAX (max_reading_pos, reading_pos);
1018 GST_DEBUG_OBJECT (queue,
1019 "updating max_reading_pos from %" G_GUINT64_FORMAT " to %"
1020 G_GUINT64_FORMAT, range->max_reading_pos, max_reading_pos);
1021 range->max_reading_pos = max_reading_pos;
1023 update_cur_level (queue, range);
1027 perform_seek_to_offset (GstQueue2 * queue, guint64 offset)
1032 GST_QUEUE2_MUTEX_UNLOCK (queue);
1034 GST_DEBUG_OBJECT (queue, "Seeking to %" G_GUINT64_FORMAT, offset);
1037 gst_event_new_seek (1.0, GST_FORMAT_BYTES,
1038 GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
1039 GST_SEEK_TYPE_NONE, -1);
1041 res = gst_pad_push_event (queue->sinkpad, event);
1042 GST_QUEUE2_MUTEX_LOCK (queue);
1045 queue->current = add_range (queue, offset);
1050 /* see if there is enough data in the file to read a full buffer */
1052 gst_queue2_have_data (GstQueue2 * queue, guint64 offset, guint length)
1054 GstQueue2Range *range;
1056 GST_DEBUG_OBJECT (queue, "looking for offset %" G_GUINT64_FORMAT ", len %u",
1059 if ((range = find_range (queue, offset))) {
1060 if (queue->current != range) {
1061 GST_DEBUG_OBJECT (queue, "switching ranges, do seek to range position");
1062 perform_seek_to_offset (queue, range->writing_pos);
1065 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1066 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1068 /* we have a range for offset */
1069 GST_DEBUG_OBJECT (queue,
1070 "we have a range %p, offset %" G_GUINT64_FORMAT ", writing_pos %"
1071 G_GUINT64_FORMAT, range, range->offset, range->writing_pos);
1073 if (!QUEUE_IS_USING_RING_BUFFER (queue) && queue->is_eos)
1076 if (offset + length <= range->writing_pos)
1079 GST_DEBUG_OBJECT (queue,
1080 "Need more data (%" G_GUINT64_FORMAT " bytes more)",
1081 (offset + length) - range->writing_pos);
1084 GST_INFO_OBJECT (queue, "not found in any range");
1085 /* we don't have the range, see how far away we are, FIXME, find a good
1086 * threshold based on the incomming rate. */
1087 if (!queue->is_eos && queue->current) {
1088 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1089 if (offset < queue->current->offset || offset >
1090 queue->current->writing_pos + QUEUE_MAX_BYTES (queue) -
1091 queue->cur_level.bytes) {
1092 perform_seek_to_offset (queue, offset);
1094 GST_INFO_OBJECT (queue,
1095 "requested data is within range, wait for data");
1097 } else if (offset < queue->current->writing_pos + 200000) {
1098 update_cur_pos (queue, queue->current, offset + length);
1099 GST_INFO_OBJECT (queue, "wait for data");
1104 /* too far away, do a seek */
1105 perform_seek_to_offset (queue, offset);
1112 #define FSEEK_FILE(file,offset) (fseeko (file, (off_t) offset, SEEK_SET) != 0)
1113 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1114 #define FSEEK_FILE(file,offset) (lseek (fileno (file), (off_t) offset, SEEK_SET) == (off_t) -1)
1116 #define FSEEK_FILE(file,offset) (fseek (file, offset, SEEK_SET) != 0)
1120 gst_queue2_read_data_at_offset (GstQueue2 * queue, guint64 offset, guint length,
1123 guint8 *ring_buffer;
1126 ring_buffer = queue->ring_buffer;
1128 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, offset))
1131 /* this should not block */
1132 GST_LOG_OBJECT (queue, "Reading %d bytes from offset %" G_GUINT64_FORMAT,
1134 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1135 res = fread (dst, 1, length, queue->temp_file);
1137 memcpy (dst, ring_buffer + offset, length);
1141 GST_LOG_OBJECT (queue, "read %" G_GSIZE_FORMAT " bytes", res);
1143 if (G_UNLIKELY (res < length)) {
1144 if (!QUEUE_IS_USING_TEMP_FILE (queue))
1145 goto could_not_read;
1146 /* check for errors or EOF */
1147 if (ferror (queue->temp_file))
1148 goto could_not_read;
1149 if (feof (queue->temp_file) && length > 0)
1157 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1158 return GST_FLOW_ERROR;
1162 GST_ELEMENT_ERROR (queue, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
1163 return GST_FLOW_ERROR;
1167 GST_DEBUG ("non-regular file hits EOS");
1168 return GST_FLOW_UNEXPECTED;
1172 static GstFlowReturn
1173 gst_queue2_create_read (GstQueue2 * queue, guint64 offset, guint length,
1174 GstBuffer ** buffer)
1178 guint64 file_offset;
1179 guint block_length, remaining, read_length;
1184 /* allocate the output buffer of the requested size */
1185 buf = gst_buffer_new_and_alloc (length);
1186 data = GST_BUFFER_DATA (buf);
1188 GST_DEBUG_OBJECT (queue, "Reading %u bytes from %" G_GUINT64_FORMAT, length,
1192 rb_size = queue->ring_buffer_max_size;
1195 while (remaining > 0) {
1196 /* configure how much/whether to read */
1197 if (!gst_queue2_have_data (queue, rpos, remaining)) {
1200 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1203 /* calculate how far away the offset is */
1204 if (queue->current->writing_pos > rpos)
1205 level = queue->current->writing_pos - rpos;
1209 GST_DEBUG_OBJECT (queue,
1210 "reading %" G_GUINT64_FORMAT ", writing %" G_GUINT64_FORMAT
1211 ", level %" G_GUINT64_FORMAT,
1212 rpos, queue->current->writing_pos, level);
1214 if (level >= rb_size) {
1215 /* we don't have the data but if we have a ring buffer that is full, we
1217 GST_DEBUG_OBJECT (queue,
1218 "ring buffer full, reading ring-buffer-max-size %"
1219 G_GUINT64_FORMAT " bytes", rb_size);
1220 read_length = rb_size;
1221 } else if (queue->is_eos) {
1222 /* won't get any more data so read any data we have */
1224 GST_DEBUG_OBJECT (queue,
1225 "EOS hit but read %" G_GUINT64_FORMAT " bytes that we have",
1227 read_length = level;
1229 GST_DEBUG_OBJECT (queue,
1230 "EOS hit and we don't have any requested data");
1231 gst_buffer_unref (buf);
1232 return GST_FLOW_UNEXPECTED;
1237 if (read_length == 0) {
1238 if (QUEUE_IS_USING_RING_BUFFER (queue)
1239 && queue->current->max_reading_pos > rpos) {
1240 /* protect cached data (data between offset and max_reading_pos)
1241 * and update current level */
1242 GST_DEBUG_OBJECT (queue,
1243 "protecting cached data [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1244 "]", rpos, queue->current->max_reading_pos);
1245 queue->current->max_reading_pos = rpos;
1246 update_cur_level (queue, queue->current);
1248 GST_DEBUG_OBJECT (queue, "waiting for add");
1249 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
1253 /* we have the requested data so read it */
1254 read_length = remaining;
1257 /* set range reading_pos to actual reading position for this read */
1258 queue->current->reading_pos = rpos;
1260 /* congfigure how much and from where to read */
1261 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1263 (queue->current->rb_offset + (rpos -
1264 queue->current->offset)) % rb_size;
1265 if (file_offset + read_length > rb_size) {
1266 block_length = rb_size - file_offset;
1268 block_length = read_length;
1272 block_length = read_length;
1275 /* while we still have data to read, we loop */
1276 while (read_length > 0) {
1278 gst_queue2_read_data_at_offset (queue, file_offset, block_length,
1280 if (read_return < 0)
1283 file_offset += read_return;
1284 if (QUEUE_IS_USING_RING_BUFFER (queue))
1285 file_offset %= rb_size;
1287 data += read_return;
1288 read_length -= read_return;
1289 block_length = read_length;
1290 remaining -= read_return;
1292 rpos = (queue->current->reading_pos += read_return);
1293 update_cur_pos (queue, queue->current, queue->current->reading_pos);
1295 GST_QUEUE2_SIGNAL_DEL (queue);
1296 GST_DEBUG_OBJECT (queue, "%u bytes left to read", remaining);
1299 GST_BUFFER_SIZE (buf) = length;
1300 GST_BUFFER_OFFSET (buf) = offset;
1301 GST_BUFFER_OFFSET_END (buf) = offset + length;
1310 GST_DEBUG_OBJECT (queue, "we are flushing");
1311 gst_buffer_unref (buf);
1312 return GST_FLOW_WRONG_STATE;
1316 GST_DEBUG_OBJECT (queue, "we have a read error");
1317 gst_buffer_unref (buf);
1322 /* should be called with QUEUE_LOCK */
1323 static GstMiniObject *
1324 gst_queue2_read_item_from_file (GstQueue2 * queue)
1326 GstMiniObject *item;
1328 if (queue->starting_segment != NULL) {
1329 item = GST_MINI_OBJECT_CAST (queue->starting_segment);
1330 queue->starting_segment = NULL;
1334 guint64 reading_pos;
1336 reading_pos = queue->current->reading_pos;
1339 gst_queue2_create_read (queue, reading_pos, DEFAULT_BUFFER_SIZE,
1344 item = GST_MINI_OBJECT_CAST (buffer);
1346 case GST_FLOW_UNEXPECTED:
1347 item = GST_MINI_OBJECT_CAST (gst_event_new_eos ());
1357 /* must be called with MUTEX_LOCK. Will briefly release the lock when notifying
1358 * the temp filename. */
1360 gst_queue2_open_temp_location_file (GstQueue2 * queue)
1365 if (queue->temp_file)
1366 goto already_opened;
1368 GST_DEBUG_OBJECT (queue, "opening temp file %s", queue->temp_template);
1370 /* we have two cases:
1371 * - temp_location was set to something !NULL (Deprecated). in this case we
1372 * open the specified filename.
1373 * - temp_template was set, allocate a filename and open that filename
1375 if (!queue->temp_location_set) {
1377 if (queue->temp_template == NULL)
1380 /* make copy of the template, we don't want to change this */
1381 name = g_strdup (queue->temp_template);
1382 fd = g_mkstemp (name);
1384 goto mkstemp_failed;
1386 /* open the file for update/writing */
1387 queue->temp_file = fdopen (fd, "wb+");
1388 /* error creating file */
1389 if (queue->temp_file == NULL)
1392 g_free (queue->temp_location);
1393 queue->temp_location = name;
1395 GST_QUEUE2_MUTEX_UNLOCK (queue);
1397 /* we can't emit the notify with the lock */
1398 g_object_notify (G_OBJECT (queue), "temp-location");
1400 GST_QUEUE2_MUTEX_LOCK (queue);
1402 /* open the file for update/writing, this is deprecated but we still need to
1403 * support it for API/ABI compatibility */
1404 queue->temp_file = g_fopen (queue->temp_location, "wb+");
1405 /* error creating file */
1406 if (queue->temp_file == NULL)
1409 GST_DEBUG_OBJECT (queue, "opened temp file %s", queue->temp_template);
1416 GST_DEBUG_OBJECT (queue, "temp file was already open");
1421 GST_ELEMENT_ERROR (queue, RESOURCE, NOT_FOUND,
1422 (_("No Temp directory specified.")), (NULL));
1427 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1428 (_("Could not create temp file \"%s\"."), queue->temp_template),
1435 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1436 (_("Could not open file \"%s\" for reading."), name), GST_ERROR_SYSTEM);
1445 gst_queue2_close_temp_location_file (GstQueue2 * queue)
1448 if (queue->temp_file == NULL)
1451 GST_DEBUG_OBJECT (queue, "closing temp file");
1453 fflush (queue->temp_file);
1454 fclose (queue->temp_file);
1456 if (queue->temp_remove)
1457 remove (queue->temp_location);
1459 queue->temp_file = NULL;
1460 clean_ranges (queue);
1464 gst_queue2_flush_temp_file (GstQueue2 * queue)
1466 if (queue->temp_file == NULL)
1469 GST_DEBUG_OBJECT (queue, "flushing temp file");
1471 queue->temp_file = g_freopen (queue->temp_location, "wb+", queue->temp_file);
1475 gst_queue2_locked_flush (GstQueue2 * queue)
1477 if (!QUEUE_IS_USING_QUEUE (queue)) {
1478 if (QUEUE_IS_USING_TEMP_FILE (queue))
1479 gst_queue2_flush_temp_file (queue);
1480 init_ranges (queue);
1482 while (!g_queue_is_empty (queue->queue)) {
1483 GstMiniObject *data = g_queue_pop_head (queue->queue);
1485 /* Then lose another reference because we are supposed to destroy that
1486 data when flushing */
1487 gst_mini_object_unref (data);
1490 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1491 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
1492 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
1493 queue->sinktime = queue->srctime = GST_CLOCK_TIME_NONE;
1494 queue->sink_tainted = queue->src_tainted = TRUE;
1495 if (queue->starting_segment != NULL)
1496 gst_event_unref (queue->starting_segment);
1497 queue->starting_segment = NULL;
1498 queue->segment_event_received = FALSE;
1500 /* we deleted a lot of something */
1501 GST_QUEUE2_SIGNAL_DEL (queue);
1505 gst_queue2_wait_free_space (GstQueue2 * queue)
1507 /* We make space available if we're "full" according to whatever
1508 * the user defined as "full". */
1509 if (gst_queue2_is_filled (queue)) {
1512 /* pause the timer while we wait. The fact that we are waiting does not mean
1513 * the byterate on the input pad is lower */
1514 if ((started = queue->in_timer_started))
1515 g_timer_stop (queue->in_timer);
1517 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
1518 "queue is full, waiting for free space");
1520 /* Wait for space to be available, we could be unlocked because of a flush. */
1521 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1523 while (gst_queue2_is_filled (queue));
1525 /* and continue if we were running before */
1527 g_timer_continue (queue->in_timer);
1534 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "queue is flushing");
1540 gst_queue2_create_write (GstQueue2 * queue, GstBuffer * buffer)
1542 guint8 *data, *ring_buffer;
1543 guint size, rb_size;
1544 guint64 writing_pos, new_writing_pos;
1545 GstQueue2Range *range, *prev, *next;
1547 if (QUEUE_IS_USING_RING_BUFFER (queue))
1548 writing_pos = queue->current->rb_writing_pos;
1550 writing_pos = queue->current->writing_pos;
1551 ring_buffer = queue->ring_buffer;
1552 rb_size = queue->ring_buffer_max_size;
1554 size = GST_BUFFER_SIZE (buffer);
1555 data = GST_BUFFER_DATA (buffer);
1557 GST_DEBUG_OBJECT (queue, "Writing %u bytes to %" G_GUINT64_FORMAT, size,
1558 GST_BUFFER_OFFSET (buffer));
1563 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1566 /* calculate the space in the ring buffer not used by data from
1567 * the current range */
1568 while (QUEUE_MAX_BYTES (queue) <= queue->cur_level.bytes) {
1569 /* wait until there is some free space */
1570 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1572 /* get the amount of space we have */
1573 space = QUEUE_MAX_BYTES (queue) - queue->cur_level.bytes;
1575 /* calculate if we need to split or if we can write the entire
1577 to_write = MIN (size, space);
1579 /* the writing position in the ring buffer after writing (part
1580 * or all of) the buffer */
1581 new_writing_pos = (writing_pos + to_write) % rb_size;
1584 range = queue->ranges;
1586 /* if we need to overwrite data in the ring buffer, we need to
1589 * warning: this code is complicated and includes some
1590 * simplifications - pen, paper and diagrams for the cases
1593 guint64 range_data_start, range_data_end;
1594 GstQueue2Range *range_to_destroy = NULL;
1596 range_data_start = range->rb_offset;
1597 range_data_end = range->rb_writing_pos;
1599 /* handle the special case where the range has no data in it */
1600 if (range->writing_pos == range->offset) {
1601 if (range != queue->current) {
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;
1613 if (range_data_end > range_data_start) {
1614 if (writing_pos >= range_data_end && new_writing_pos >= writing_pos)
1617 if (new_writing_pos > range_data_start) {
1618 if (new_writing_pos >= range_data_end) {
1619 GST_DEBUG_OBJECT (queue,
1620 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1621 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1623 range_to_destroy = range;
1625 prev->next = range->next;
1627 GST_DEBUG_OBJECT (queue,
1628 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1629 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1630 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1631 range->offset + new_writing_pos - range_data_start,
1633 range->offset += (new_writing_pos - range_data_start);
1634 range->rb_offset = new_writing_pos;
1638 guint64 new_wpos_virt = writing_pos + to_write;
1640 if (new_wpos_virt <= range_data_start)
1643 if (new_wpos_virt > rb_size && new_writing_pos >= range_data_end) {
1644 GST_DEBUG_OBJECT (queue,
1645 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1646 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1648 range_to_destroy = range;
1650 prev->next = range->next;
1652 GST_DEBUG_OBJECT (queue,
1653 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1654 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1655 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1656 range->offset + new_writing_pos - range_data_start,
1658 range->offset += (new_wpos_virt - range_data_start);
1659 range->rb_offset = new_writing_pos;
1664 if (!range_to_destroy)
1667 range = range->next;
1668 if (range_to_destroy) {
1669 if (range_to_destroy == queue->ranges)
1670 queue->ranges = range;
1671 g_slice_free (GstQueue2Range, range_to_destroy);
1672 range_to_destroy = NULL;
1677 new_writing_pos = writing_pos + to_write;
1680 if (QUEUE_IS_USING_TEMP_FILE (queue)
1681 && FSEEK_FILE (queue->temp_file, writing_pos))
1684 if (new_writing_pos > writing_pos) {
1685 GST_INFO_OBJECT (queue,
1686 "writing %u bytes to range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1687 "] (rb wpos %" G_GUINT64_FORMAT ")", to_write, queue->current->offset,
1688 queue->current->writing_pos, queue->current->rb_writing_pos);
1689 /* either not using ring buffer or no wrapping, just write */
1690 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1691 if (fwrite (data, to_write, 1, queue->temp_file) != 1)
1694 memcpy (ring_buffer + writing_pos, data, to_write);
1697 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
1698 /* try to merge with next range */
1699 while ((next = queue->current->next)) {
1700 GST_INFO_OBJECT (queue,
1701 "checking merge with next range %" G_GUINT64_FORMAT " < %"
1702 G_GUINT64_FORMAT, new_writing_pos, next->offset);
1703 if (new_writing_pos < next->offset)
1706 GST_DEBUG_OBJECT (queue, "merging ranges %" G_GUINT64_FORMAT,
1709 /* remove the group, we could choose to not read the data in this range
1710 * again. This would involve us doing a seek to the current writing position
1711 * in the range. FIXME, It would probably make sense to do a seek when there
1712 * is a lot of data in the range we merged with to avoid reading it all
1714 queue->current->next = next->next;
1715 g_slice_free (GstQueue2Range, next);
1717 debug_ranges (queue);
1719 goto update_and_signal;
1723 guint block_one, block_two;
1725 block_one = rb_size - writing_pos;
1726 block_two = to_write - block_one;
1728 if (block_one > 0) {
1729 GST_INFO_OBJECT (queue, "writing %u bytes", block_one);
1730 /* write data to end of ring buffer */
1731 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1732 if (fwrite (data, block_one, 1, queue->temp_file) != 1)
1735 memcpy (ring_buffer + writing_pos, data, block_one);
1739 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, 0))
1742 if (block_two > 0) {
1743 GST_INFO_OBJECT (queue, "writing %u bytes", block_two);
1744 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1745 if (fwrite (data + block_one, block_two, 1, queue->temp_file) != 1)
1748 memcpy (ring_buffer, data + block_one, block_two);
1754 /* update the writing positions */
1756 GST_INFO_OBJECT (queue,
1757 "wrote %u bytes to %" G_GUINT64_FORMAT " (%u bytes remaining to write)",
1758 to_write, writing_pos, size);
1760 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1762 queue->current->writing_pos += to_write;
1763 queue->current->rb_writing_pos = writing_pos = new_writing_pos;
1765 queue->current->writing_pos = writing_pos = new_writing_pos;
1767 update_cur_level (queue, queue->current);
1769 /* update the buffering status */
1770 if (queue->use_buffering)
1771 update_buffering (queue);
1773 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1774 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1776 GST_QUEUE2_SIGNAL_ADD (queue);
1784 GST_DEBUG_OBJECT (queue, "we are flushing");
1785 /* FIXME - GST_FLOW_UNEXPECTED ? */
1790 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1797 GST_ELEMENT_ERROR (queue, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
1801 GST_ELEMENT_ERROR (queue, RESOURCE, WRITE,
1802 (_("Error while writing to download file.")),
1803 ("%s", g_strerror (errno)));
1810 /* enqueue an item an update the level stats */
1812 gst_queue2_locked_enqueue (GstQueue2 * queue, gpointer item, gboolean isbuffer)
1818 buffer = GST_BUFFER_CAST (item);
1819 size = GST_BUFFER_SIZE (buffer);
1821 /* add buffer to the statistics */
1822 if (QUEUE_IS_USING_QUEUE (queue)) {
1823 queue->cur_level.buffers++;
1824 queue->cur_level.bytes += size;
1826 queue->bytes_in += size;
1828 /* apply new buffer to segment stats */
1829 apply_buffer (queue, buffer, &queue->sink_segment, TRUE);
1830 /* update the byterate stats */
1831 update_in_rates (queue);
1833 if (!QUEUE_IS_USING_QUEUE (queue)) {
1834 /* FIXME - check return value? */
1835 gst_queue2_create_write (queue, buffer);
1837 } else if (GST_IS_EVENT (item)) {
1840 event = GST_EVENT_CAST (item);
1842 switch (GST_EVENT_TYPE (event)) {
1844 /* Zero the thresholds, this makes sure the queue is completely
1845 * filled and we can read all data from the queue. */
1846 GST_DEBUG_OBJECT (queue, "we have EOS");
1847 queue->is_eos = TRUE;
1849 case GST_EVENT_NEWSEGMENT:
1850 apply_segment (queue, event, &queue->sink_segment, TRUE);
1851 /* This is our first new segment, we hold it
1852 * as we can't save it on the temp file */
1853 if (!QUEUE_IS_USING_QUEUE (queue)) {
1854 if (queue->segment_event_received)
1855 goto unexpected_event;
1857 queue->segment_event_received = TRUE;
1858 if (queue->starting_segment != NULL)
1859 gst_event_unref (queue->starting_segment);
1860 queue->starting_segment = event;
1863 /* a new segment allows us to accept more buffers if we got UNEXPECTED
1864 * from downstream */
1865 queue->unexpected = FALSE;
1868 if (!QUEUE_IS_USING_QUEUE (queue))
1869 goto unexpected_event;
1873 g_warning ("Unexpected item %p added in queue %s (refcounting problem?)",
1874 item, GST_OBJECT_NAME (queue));
1875 /* we can't really unref since we don't know what it is */
1880 /* update the buffering status */
1881 if (queue->use_buffering)
1882 update_buffering (queue);
1884 if (QUEUE_IS_USING_QUEUE (queue)) {
1885 g_queue_push_tail (queue->queue, item);
1887 gst_mini_object_unref (GST_MINI_OBJECT_CAST (item));
1890 GST_QUEUE2_SIGNAL_ADD (queue);
1899 ("Unexpected event of kind %s can't be added in temp file of queue %s ",
1900 gst_event_type_get_name (GST_EVENT_TYPE (item)),
1901 GST_OBJECT_NAME (queue));
1902 gst_event_unref (GST_EVENT_CAST (item));
1907 /* dequeue an item from the queue and update level stats */
1908 static GstMiniObject *
1909 gst_queue2_locked_dequeue (GstQueue2 * queue, gboolean * is_buffer)
1911 GstMiniObject *item;
1913 if (!QUEUE_IS_USING_QUEUE (queue))
1914 item = gst_queue2_read_item_from_file (queue);
1916 item = g_queue_pop_head (queue->queue);
1921 if (GST_IS_BUFFER (item)) {
1925 buffer = GST_BUFFER_CAST (item);
1926 size = GST_BUFFER_SIZE (buffer);
1929 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1930 "retrieved buffer %p from queue", buffer);
1932 if (QUEUE_IS_USING_QUEUE (queue)) {
1933 queue->cur_level.buffers--;
1934 queue->cur_level.bytes -= size;
1936 queue->bytes_out += size;
1938 apply_buffer (queue, buffer, &queue->src_segment, FALSE);
1939 /* update the byterate stats */
1940 update_out_rates (queue);
1941 /* update the buffering */
1942 if (queue->use_buffering)
1943 update_buffering (queue);
1945 } else if (GST_IS_EVENT (item)) {
1946 GstEvent *event = GST_EVENT_CAST (item);
1950 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1951 "retrieved event %p from queue", event);
1953 switch (GST_EVENT_TYPE (event)) {
1955 /* queue is empty now that we dequeued the EOS */
1956 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1958 case GST_EVENT_NEWSEGMENT:
1959 apply_segment (queue, event, &queue->src_segment, FALSE);
1966 ("Unexpected item %p dequeued from queue %s (refcounting problem?)",
1967 item, GST_OBJECT_NAME (queue));
1970 GST_QUEUE2_SIGNAL_DEL (queue);
1977 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "the queue is empty");
1983 gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event)
1987 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
1989 switch (GST_EVENT_TYPE (event)) {
1990 case GST_EVENT_FLUSH_START:
1992 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush start event");
1993 if (QUEUE_IS_USING_QUEUE (queue)) {
1995 gst_pad_push_event (queue->srcpad, event);
1997 /* now unblock the chain function */
1998 GST_QUEUE2_MUTEX_LOCK (queue);
1999 queue->srcresult = GST_FLOW_WRONG_STATE;
2000 queue->sinkresult = GST_FLOW_WRONG_STATE;
2001 /* unblock the loop and chain functions */
2002 GST_QUEUE2_SIGNAL_ADD (queue);
2003 GST_QUEUE2_SIGNAL_DEL (queue);
2004 GST_QUEUE2_MUTEX_UNLOCK (queue);
2006 /* make sure it pauses, this should happen since we sent
2007 * flush_start downstream. */
2008 gst_pad_pause_task (queue->srcpad);
2009 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "loop stopped");
2011 GST_QUEUE2_MUTEX_LOCK (queue);
2012 /* flush the sink pad */
2013 queue->sinkresult = GST_FLOW_WRONG_STATE;
2014 GST_QUEUE2_SIGNAL_DEL (queue);
2015 GST_QUEUE2_MUTEX_UNLOCK (queue);
2017 gst_event_unref (event);
2021 case GST_EVENT_FLUSH_STOP:
2023 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush stop event");
2025 if (QUEUE_IS_USING_QUEUE (queue)) {
2027 gst_pad_push_event (queue->srcpad, event);
2029 GST_QUEUE2_MUTEX_LOCK (queue);
2030 gst_queue2_locked_flush (queue);
2031 queue->srcresult = GST_FLOW_OK;
2032 queue->sinkresult = GST_FLOW_OK;
2033 queue->is_eos = FALSE;
2034 queue->unexpected = FALSE;
2035 /* reset rate counters */
2036 reset_rate_timer (queue);
2037 gst_pad_start_task (queue->srcpad, (GstTaskFunction) gst_queue2_loop,
2039 GST_QUEUE2_MUTEX_UNLOCK (queue);
2041 GST_QUEUE2_MUTEX_LOCK (queue);
2042 queue->segment_event_received = FALSE;
2043 queue->is_eos = FALSE;
2044 queue->unexpected = FALSE;
2045 queue->sinkresult = GST_FLOW_OK;
2046 GST_QUEUE2_MUTEX_UNLOCK (queue);
2048 gst_event_unref (event);
2053 if (GST_EVENT_IS_SERIALIZED (event)) {
2054 /* serialized events go in the queue */
2055 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2056 /* refuse more events on EOS */
2059 gst_queue2_locked_enqueue (queue, event, FALSE);
2060 GST_QUEUE2_MUTEX_UNLOCK (queue);
2062 /* non-serialized events are passed upstream. */
2063 gst_pad_push_event (queue->srcpad, event);
2073 GST_DEBUG_OBJECT (queue, "refusing event, we are flushing");
2074 GST_QUEUE2_MUTEX_UNLOCK (queue);
2075 gst_event_unref (event);
2080 GST_DEBUG_OBJECT (queue, "refusing event, we are EOS");
2081 GST_QUEUE2_MUTEX_UNLOCK (queue);
2082 gst_event_unref (event);
2088 gst_queue2_is_empty (GstQueue2 * queue)
2090 /* never empty on EOS */
2094 if (!QUEUE_IS_USING_QUEUE (queue) && queue->current) {
2095 return queue->current->writing_pos <= queue->current->max_reading_pos;
2097 if (queue->queue->length == 0)
2105 gst_queue2_is_filled (GstQueue2 * queue)
2109 /* always filled on EOS */
2113 #define CHECK_FILLED(format,alt_max) ((queue->max_level.format) > 0 && \
2114 (queue->cur_level.format) >= ((alt_max) ? \
2115 MIN ((queue->max_level.format), (alt_max)) : (queue->max_level.format)))
2117 /* if using a ring buffer we're filled if all ring buffer space is used
2118 * _by the current range_ */
2119 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
2120 guint64 rb_size = queue->ring_buffer_max_size;
2121 GST_DEBUG_OBJECT (queue,
2122 "max bytes %u, rb size %" G_GUINT64_FORMAT ", cur bytes %u",
2123 queue->max_level.bytes, rb_size, queue->cur_level.bytes);
2124 return CHECK_FILLED (bytes, rb_size);
2127 /* if using file, we're never filled if we don't have EOS */
2128 if (QUEUE_IS_USING_TEMP_FILE (queue))
2131 /* we are never filled when we have no buffers at all */
2132 if (queue->cur_level.buffers == 0)
2135 /* we are filled if one of the current levels exceeds the max */
2136 res = CHECK_FILLED (buffers, 0) || CHECK_FILLED (bytes, 0)
2137 || CHECK_FILLED (time, 0);
2139 /* if we need to, use the rate estimate to check against the max time we are
2140 * allowed to queue */
2141 if (queue->use_rate_estimate)
2142 res |= CHECK_FILLED (rate_time, 0);
2148 static GstFlowReturn
2149 gst_queue2_chain (GstPad * pad, GstBuffer * buffer)
2153 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
2155 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2156 "received buffer %p of size %d, time %" GST_TIME_FORMAT ", duration %"
2157 GST_TIME_FORMAT, buffer, GST_BUFFER_SIZE (buffer),
2158 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
2159 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
2161 /* we have to lock the queue since we span threads */
2162 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2163 /* when we received EOS, we refuse more data */
2166 /* when we received unexpected from downstream, refuse more buffers */
2167 if (queue->unexpected)
2168 goto out_unexpected;
2170 if (!gst_queue2_wait_free_space (queue))
2173 /* put buffer in queue now */
2174 gst_queue2_locked_enqueue (queue, buffer, TRUE);
2175 GST_QUEUE2_MUTEX_UNLOCK (queue);
2179 /* special conditions */
2182 GstFlowReturn ret = queue->sinkresult;
2184 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2185 "exit because task paused, reason: %s", gst_flow_get_name (ret));
2186 GST_QUEUE2_MUTEX_UNLOCK (queue);
2187 gst_buffer_unref (buffer);
2193 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2194 GST_QUEUE2_MUTEX_UNLOCK (queue);
2195 gst_buffer_unref (buffer);
2197 return GST_FLOW_UNEXPECTED;
2201 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2202 "exit because we received UNEXPECTED");
2203 GST_QUEUE2_MUTEX_UNLOCK (queue);
2204 gst_buffer_unref (buffer);
2206 return GST_FLOW_UNEXPECTED;
2210 /* dequeue an item from the queue an push it downstream. This functions returns
2211 * the result of the push. */
2212 static GstFlowReturn
2213 gst_queue2_push_one (GstQueue2 * queue)
2215 GstFlowReturn result = GST_FLOW_OK;
2216 GstMiniObject *data;
2217 gboolean is_buffer = FALSE;
2219 data = gst_queue2_locked_dequeue (queue, &is_buffer);
2224 GST_QUEUE2_MUTEX_UNLOCK (queue);
2230 buffer = GST_BUFFER_CAST (data);
2231 caps = GST_BUFFER_CAPS (buffer);
2233 /* set caps before pushing the buffer so that core does not try to do
2234 * something fancy to check if this is possible. */
2235 if (caps && caps != GST_PAD_CAPS (queue->srcpad))
2236 gst_pad_set_caps (queue->srcpad, caps);
2238 result = gst_pad_push (queue->srcpad, buffer);
2240 /* need to check for srcresult here as well */
2241 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2242 if (result == GST_FLOW_UNEXPECTED) {
2243 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2244 "got UNEXPECTED from downstream");
2245 /* stop pushing buffers, we dequeue all items until we see an item that we
2246 * can push again, which is EOS or NEWSEGMENT. If there is nothing in the
2247 * queue we can push, we set a flag to make the sinkpad refuse more
2248 * buffers with an UNEXPECTED return value until we receive something
2249 * pushable again or we get flushed. */
2250 while ((data = gst_queue2_locked_dequeue (queue, &is_buffer))) {
2252 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2253 "dropping UNEXPECTED buffer %p", data);
2254 gst_buffer_unref (GST_BUFFER_CAST (data));
2255 } else if (GST_IS_EVENT (data)) {
2256 GstEvent *event = GST_EVENT_CAST (data);
2257 GstEventType type = GST_EVENT_TYPE (event);
2259 if (type == GST_EVENT_EOS || type == GST_EVENT_NEWSEGMENT) {
2260 /* we found a pushable item in the queue, push it out */
2261 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2262 "pushing pushable event %s after UNEXPECTED",
2263 GST_EVENT_TYPE_NAME (event));
2266 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2267 "dropping UNEXPECTED event %p", event);
2268 gst_event_unref (event);
2271 /* no more items in the queue. Set the unexpected flag so that upstream
2272 * make us refuse any more buffers on the sinkpad. Since we will still
2273 * accept EOS and NEWSEGMENT we return _FLOW_OK to the caller so that the
2274 * task function does not shut down. */
2275 queue->unexpected = TRUE;
2276 result = GST_FLOW_OK;
2278 } else if (GST_IS_EVENT (data)) {
2279 GstEvent *event = GST_EVENT_CAST (data);
2280 GstEventType type = GST_EVENT_TYPE (event);
2282 gst_pad_push_event (queue->srcpad, event);
2284 /* if we're EOS, return UNEXPECTED so that the task pauses. */
2285 if (type == GST_EVENT_EOS) {
2286 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2287 "pushed EOS event %p, return UNEXPECTED", event);
2288 result = GST_FLOW_UNEXPECTED;
2291 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2298 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2299 "exit because we have no item in the queue");
2300 return GST_FLOW_ERROR;
2304 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we are flushing");
2305 return GST_FLOW_WRONG_STATE;
2309 /* called repeadedly with @pad as the source pad. This function should push out
2310 * data to the peer element. */
2312 gst_queue2_loop (GstPad * pad)
2317 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2319 /* have to lock for thread-safety */
2320 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2322 if (gst_queue2_is_empty (queue)) {
2325 /* pause the timer while we wait. The fact that we are waiting does not mean
2326 * the byterate on the output pad is lower */
2327 if ((started = queue->out_timer_started))
2328 g_timer_stop (queue->out_timer);
2330 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
2331 "queue is empty, waiting for new data");
2333 /* Wait for data to be available, we could be unlocked because of a flush. */
2334 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
2336 while (gst_queue2_is_empty (queue));
2338 /* and continue if we were running before */
2340 g_timer_continue (queue->out_timer);
2342 ret = gst_queue2_push_one (queue);
2343 queue->srcresult = ret;
2344 queue->sinkresult = ret;
2345 if (ret != GST_FLOW_OK)
2348 GST_QUEUE2_MUTEX_UNLOCK (queue);
2355 gboolean eos = queue->is_eos;
2356 GstFlowReturn ret = queue->srcresult;
2358 gst_pad_pause_task (queue->srcpad);
2359 GST_QUEUE2_MUTEX_UNLOCK (queue);
2360 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2361 "pause task, reason: %s", gst_flow_get_name (queue->srcresult));
2362 /* let app know about us giving up if upstream is not expected to do so */
2363 /* UNEXPECTED is already taken care of elsewhere */
2364 if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED)) {
2365 GST_ELEMENT_ERROR (queue, STREAM, FAILED,
2366 (_("Internal data flow error.")),
2367 ("streaming task paused, reason %s (%d)",
2368 gst_flow_get_name (ret), ret));
2369 gst_pad_push_event (queue->srcpad, gst_event_new_eos ());
2376 gst_queue2_handle_src_event (GstPad * pad, GstEvent * event)
2378 gboolean res = TRUE;
2379 GstQueue2 *queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2381 if (G_UNLIKELY (queue == NULL)) {
2382 gst_event_unref (event);
2385 #ifndef GST_DISABLE_GST_DEBUG
2386 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "got event %p (%s)",
2387 event, GST_EVENT_TYPE_NAME (event));
2390 switch (GST_EVENT_TYPE (event)) {
2391 case GST_EVENT_FLUSH_START:
2392 if (QUEUE_IS_USING_QUEUE (queue)) {
2393 /* just forward upstream */
2394 res = gst_pad_push_event (queue->sinkpad, event);
2396 /* now unblock the getrange function */
2397 GST_QUEUE2_MUTEX_LOCK (queue);
2398 GST_DEBUG_OBJECT (queue, "flushing");
2399 queue->srcresult = GST_FLOW_WRONG_STATE;
2400 GST_QUEUE2_SIGNAL_ADD (queue);
2401 GST_QUEUE2_MUTEX_UNLOCK (queue);
2403 /* when using a temp file, we eat the event */
2405 gst_event_unref (event);
2408 case GST_EVENT_FLUSH_STOP:
2409 if (QUEUE_IS_USING_QUEUE (queue)) {
2410 /* just forward upstream */
2411 res = gst_pad_push_event (queue->sinkpad, event);
2413 /* now unblock the getrange function */
2414 GST_QUEUE2_MUTEX_LOCK (queue);
2415 queue->srcresult = GST_FLOW_OK;
2416 if (queue->current) {
2417 /* forget the highest read offset, we'll calculate a new one when we
2418 * get the next getrange request. We need to do this in order to reset
2419 * the buffering percentage */
2420 queue->current->max_reading_pos = 0;
2422 GST_QUEUE2_MUTEX_UNLOCK (queue);
2424 /* when using a temp file, we eat the event */
2426 gst_event_unref (event);
2430 res = gst_pad_push_event (queue->sinkpad, event);
2434 gst_object_unref (queue);
2439 gst_queue2_peer_query (GstQueue2 * queue, GstPad * pad, GstQuery * query)
2441 gboolean ret = FALSE;
2444 if ((peer = gst_pad_get_peer (pad))) {
2445 ret = gst_pad_query (peer, query);
2446 gst_object_unref (peer);
2452 gst_queue2_handle_src_query (GstPad * pad, GstQuery * query)
2456 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2457 if (G_UNLIKELY (queue == NULL))
2460 switch (GST_QUERY_TYPE (query)) {
2461 case GST_QUERY_POSITION:
2466 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2469 /* get peer position */
2470 gst_query_parse_position (query, &format, &peer_pos);
2472 /* FIXME: this code assumes that there's no discont in the queue */
2474 case GST_FORMAT_BYTES:
2475 peer_pos -= queue->cur_level.bytes;
2477 case GST_FORMAT_TIME:
2478 peer_pos -= queue->cur_level.time;
2481 GST_WARNING_OBJECT (queue, "dropping query in %s format, don't "
2482 "know how to adjust value", gst_format_get_name (format));
2485 /* set updated position */
2486 gst_query_set_position (query, format, peer_pos);
2489 case GST_QUERY_DURATION:
2491 GST_DEBUG_OBJECT (queue, "doing peer query");
2493 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2496 GST_DEBUG_OBJECT (queue, "peer query success");
2499 case GST_QUERY_BUFFERING:
2503 GST_DEBUG_OBJECT (queue, "query buffering");
2505 /* FIXME - is this condition correct? what should ring buffer do? */
2506 if (QUEUE_IS_USING_QUEUE (queue)) {
2507 /* no temp file, just forward to the peer */
2508 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2510 GST_DEBUG_OBJECT (queue, "buffering forwarded to peer");
2512 gint64 start, stop, range_start, range_stop;
2513 guint64 writing_pos;
2515 gint64 estimated_total, buffering_left;
2518 gboolean peer_res, is_buffering, is_eos;
2519 gdouble byte_in_rate, byte_out_rate;
2520 GstQueue2Range *queued_ranges;
2522 /* we need a current download region */
2523 if (queue->current == NULL)
2526 writing_pos = queue->current->writing_pos;
2527 byte_in_rate = queue->byte_in_rate;
2528 byte_out_rate = queue->byte_out_rate;
2529 is_buffering = queue->is_buffering;
2530 is_eos = queue->is_eos;
2531 percent = queue->buffering_percent;
2534 /* we're EOS, we know the duration in bytes now */
2536 duration = writing_pos;
2538 /* get duration of upstream in bytes */
2539 peer_fmt = GST_FORMAT_BYTES;
2540 peer_res = gst_pad_query_peer_duration (queue->sinkpad, &peer_fmt,
2544 /* calculate remaining and total download time */
2545 if (peer_res && byte_in_rate > 0.0) {
2546 estimated_total = (duration * 1000) / byte_in_rate;
2547 buffering_left = ((duration - writing_pos) * 1000) / byte_in_rate;
2549 estimated_total = -1;
2550 buffering_left = -1;
2552 GST_DEBUG_OBJECT (queue, "estimated %" G_GINT64_FORMAT ", left %"
2553 G_GINT64_FORMAT, estimated_total, buffering_left);
2555 gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
2558 case GST_FORMAT_PERCENT:
2559 /* we need duration */
2563 GST_DEBUG_OBJECT (queue,
2564 "duration %" G_GINT64_FORMAT ", writing %" G_GINT64_FORMAT,
2565 duration, writing_pos);
2568 /* get our available data relative to the duration */
2570 stop = GST_FORMAT_PERCENT_MAX * writing_pos / duration;
2574 case GST_FORMAT_BYTES:
2584 /* fill out the buffered ranges */
2585 for (queued_ranges = queue->ranges; queued_ranges;
2586 queued_ranges = queued_ranges->next) {
2588 case GST_FORMAT_PERCENT:
2589 if (duration == -1) {
2594 range_start = 100 * queued_ranges->offset / duration;
2595 range_stop = 100 * queued_ranges->writing_pos / duration;
2597 case GST_FORMAT_BYTES:
2598 range_start = queued_ranges->offset;
2599 range_stop = queued_ranges->writing_pos;
2606 if (range_start == range_stop)
2608 GST_DEBUG_OBJECT (queue,
2609 "range starting at %" G_GINT64_FORMAT " and finishing at %"
2610 G_GINT64_FORMAT, range_start, range_stop);
2611 gst_query_add_buffering_range (query, range_start, range_stop);
2614 gst_query_set_buffering_percent (query, is_buffering, percent);
2615 gst_query_set_buffering_range (query, format, start, stop,
2617 gst_query_set_buffering_stats (query, GST_BUFFERING_DOWNLOAD,
2618 byte_in_rate, byte_out_rate, buffering_left);
2623 /* peer handled other queries */
2624 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2629 gst_object_unref (queue);
2635 GST_DEBUG_OBJECT (queue, "failed peer query");
2636 gst_object_unref (queue);
2642 gst_queue2_handle_query (GstElement * element, GstQuery * query)
2644 /* simply forward to the srcpad query function */
2645 return gst_queue2_handle_src_query (GST_QUEUE2_CAST (element)->srcpad, query);
2649 gst_queue2_update_upstream_size (GstQueue2 * queue)
2651 GstFormat fmt = GST_FORMAT_BYTES;
2652 gint64 upstream_size = -1;
2654 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &upstream_size)) {
2655 GST_INFO_OBJECT (queue, "upstream size: %" G_GINT64_FORMAT, upstream_size);
2656 queue->upstream_size = upstream_size;
2660 static GstFlowReturn
2661 gst_queue2_get_range (GstPad * pad, guint64 offset, guint length,
2662 GstBuffer ** buffer)
2667 queue = GST_QUEUE2_CAST (gst_pad_get_parent (pad));
2669 length = (length == -1) ? DEFAULT_BUFFER_SIZE : length;
2670 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2671 offset = (offset == -1) ? queue->current->reading_pos : offset;
2673 GST_DEBUG_OBJECT (queue,
2674 "Getting range: offset %" G_GUINT64_FORMAT ", length %u", offset, length);
2676 /* catch any reads beyond the size of the file here to make sure queue2
2677 * doesn't send seek events beyond the size of the file upstream, since
2678 * that would confuse elements such as souphttpsrc and/or http servers.
2679 * Demuxers often just loop until EOS at the end of the file to figure out
2680 * when they've read all the end-headers or index chunks. */
2681 if (G_UNLIKELY (offset >= queue->upstream_size)) {
2682 gst_queue2_update_upstream_size (queue);
2683 if (queue->upstream_size > 0 && offset >= queue->upstream_size)
2684 goto out_unexpected;
2687 if (G_UNLIKELY (offset + length > queue->upstream_size)) {
2688 gst_queue2_update_upstream_size (queue);
2689 if (queue->upstream_size > 0 && offset + length >= queue->upstream_size) {
2690 length = queue->upstream_size - offset;
2691 GST_DEBUG_OBJECT (queue, "adjusting length downto %d", length);
2695 /* FIXME - function will block when the range is not yet available */
2696 ret = gst_queue2_create_read (queue, offset, length, buffer);
2697 GST_QUEUE2_MUTEX_UNLOCK (queue);
2699 gst_object_unref (queue);
2706 ret = queue->srcresult;
2708 GST_DEBUG_OBJECT (queue, "we are flushing");
2709 GST_QUEUE2_MUTEX_UNLOCK (queue);
2710 gst_object_unref (queue);
2715 GST_DEBUG_OBJECT (queue, "read beyond end of file");
2716 GST_QUEUE2_MUTEX_UNLOCK (queue);
2717 gst_object_unref (queue);
2718 return GST_FLOW_UNEXPECTED;
2723 gst_queue2_src_checkgetrange_function (GstPad * pad)
2728 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2730 /* we can operate in pull mode when we are using a tempfile */
2731 ret = !QUEUE_IS_USING_QUEUE (queue);
2733 gst_object_unref (GST_OBJECT (queue));
2738 /* sink currently only operates in push mode */
2740 gst_queue2_sink_activate_push (GstPad * pad, gboolean active)
2742 gboolean result = TRUE;
2745 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2748 GST_QUEUE2_MUTEX_LOCK (queue);
2749 GST_DEBUG_OBJECT (queue, "activating push mode");
2750 queue->srcresult = GST_FLOW_OK;
2751 queue->sinkresult = GST_FLOW_OK;
2752 queue->is_eos = FALSE;
2753 queue->unexpected = FALSE;
2754 reset_rate_timer (queue);
2755 GST_QUEUE2_MUTEX_UNLOCK (queue);
2757 /* unblock chain function */
2758 GST_QUEUE2_MUTEX_LOCK (queue);
2759 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2760 queue->srcresult = GST_FLOW_WRONG_STATE;
2761 queue->sinkresult = GST_FLOW_WRONG_STATE;
2762 gst_queue2_locked_flush (queue);
2763 GST_QUEUE2_MUTEX_UNLOCK (queue);
2766 gst_object_unref (queue);
2771 /* src operating in push mode, we start a task on the source pad that pushes out
2772 * buffers from the queue */
2774 gst_queue2_src_activate_push (GstPad * pad, gboolean active)
2776 gboolean result = FALSE;
2779 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2782 GST_QUEUE2_MUTEX_LOCK (queue);
2783 GST_DEBUG_OBJECT (queue, "activating push mode");
2784 queue->srcresult = GST_FLOW_OK;
2785 queue->sinkresult = GST_FLOW_OK;
2786 queue->is_eos = FALSE;
2787 queue->unexpected = FALSE;
2788 result = gst_pad_start_task (pad, (GstTaskFunction) gst_queue2_loop, pad);
2789 GST_QUEUE2_MUTEX_UNLOCK (queue);
2791 /* unblock loop function */
2792 GST_QUEUE2_MUTEX_LOCK (queue);
2793 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2794 queue->srcresult = GST_FLOW_WRONG_STATE;
2795 queue->sinkresult = GST_FLOW_WRONG_STATE;
2796 /* the item add signal will unblock */
2797 GST_QUEUE2_SIGNAL_ADD (queue);
2798 GST_QUEUE2_MUTEX_UNLOCK (queue);
2800 /* step 2, make sure streaming finishes */
2801 result = gst_pad_stop_task (pad);
2804 gst_object_unref (queue);
2809 /* pull mode, downstream will call our getrange function */
2811 gst_queue2_src_activate_pull (GstPad * pad, gboolean active)
2816 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2819 GST_QUEUE2_MUTEX_LOCK (queue);
2820 if (!QUEUE_IS_USING_QUEUE (queue)) {
2821 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2822 /* open the temp file now */
2823 result = gst_queue2_open_temp_location_file (queue);
2824 } else if (!queue->ring_buffer) {
2825 queue->ring_buffer = g_malloc (queue->ring_buffer_max_size);
2826 result = ! !queue->ring_buffer;
2831 GST_DEBUG_OBJECT (queue, "activating pull mode");
2832 init_ranges (queue);
2833 queue->srcresult = GST_FLOW_OK;
2834 queue->sinkresult = GST_FLOW_OK;
2835 queue->is_eos = FALSE;
2836 queue->unexpected = FALSE;
2837 queue->upstream_size = 0;
2839 GST_DEBUG_OBJECT (queue, "no temp file, cannot activate pull mode");
2840 /* this is not allowed, we cannot operate in pull mode without a temp
2842 queue->srcresult = GST_FLOW_WRONG_STATE;
2843 queue->sinkresult = GST_FLOW_WRONG_STATE;
2846 GST_QUEUE2_MUTEX_UNLOCK (queue);
2848 GST_QUEUE2_MUTEX_LOCK (queue);
2849 GST_DEBUG_OBJECT (queue, "deactivating pull mode");
2850 queue->srcresult = GST_FLOW_WRONG_STATE;
2851 queue->sinkresult = GST_FLOW_WRONG_STATE;
2852 /* this will unlock getrange */
2853 GST_QUEUE2_SIGNAL_ADD (queue);
2855 GST_QUEUE2_MUTEX_UNLOCK (queue);
2857 gst_object_unref (queue);
2862 static GstStateChangeReturn
2863 gst_queue2_change_state (GstElement * element, GstStateChange transition)
2866 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
2868 queue = GST_QUEUE2 (element);
2870 switch (transition) {
2871 case GST_STATE_CHANGE_NULL_TO_READY:
2873 case GST_STATE_CHANGE_READY_TO_PAUSED:
2874 GST_QUEUE2_MUTEX_LOCK (queue);
2875 if (!QUEUE_IS_USING_QUEUE (queue)) {
2876 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2877 if (!gst_queue2_open_temp_location_file (queue))
2878 ret = GST_STATE_CHANGE_FAILURE;
2880 if (queue->ring_buffer) {
2881 g_free (queue->ring_buffer);
2882 queue->ring_buffer = NULL;
2884 if (!(queue->ring_buffer = g_malloc (queue->ring_buffer_max_size)))
2885 ret = GST_STATE_CHANGE_FAILURE;
2887 init_ranges (queue);
2889 queue->segment_event_received = FALSE;
2890 queue->starting_segment = NULL;
2891 GST_QUEUE2_MUTEX_UNLOCK (queue);
2893 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2899 if (ret == GST_STATE_CHANGE_FAILURE)
2902 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2904 if (ret == GST_STATE_CHANGE_FAILURE)
2907 switch (transition) {
2908 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2910 case GST_STATE_CHANGE_PAUSED_TO_READY:
2911 GST_QUEUE2_MUTEX_LOCK (queue);
2912 if (!QUEUE_IS_USING_QUEUE (queue)) {
2913 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2914 gst_queue2_close_temp_location_file (queue);
2915 } else if (queue->ring_buffer) {
2916 g_free (queue->ring_buffer);
2917 queue->ring_buffer = NULL;
2919 clean_ranges (queue);
2921 if (queue->starting_segment != NULL) {
2922 gst_event_unref (queue->starting_segment);
2923 queue->starting_segment = NULL;
2925 GST_QUEUE2_MUTEX_UNLOCK (queue);
2927 case GST_STATE_CHANGE_READY_TO_NULL:
2936 /* changing the capacity of the queue must wake up
2937 * the _chain function, it might have more room now
2938 * to store the buffer/event in the queue */
2939 #define QUEUE_CAPACITY_CHANGE(q)\
2940 GST_QUEUE2_SIGNAL_DEL (queue);
2942 /* Changing the minimum required fill level must
2943 * wake up the _loop function as it might now
2944 * be able to preceed.
2946 #define QUEUE_THRESHOLD_CHANGE(q)\
2947 GST_QUEUE2_SIGNAL_ADD (queue);
2950 gst_queue2_set_temp_template (GstQueue2 * queue, const gchar * template)
2954 /* the element must be stopped in order to do this */
2955 GST_OBJECT_LOCK (queue);
2956 state = GST_STATE (queue);
2957 if (state != GST_STATE_READY && state != GST_STATE_NULL)
2959 GST_OBJECT_UNLOCK (queue);
2961 /* set new location */
2962 g_free (queue->temp_template);
2963 queue->temp_template = g_strdup (template);
2970 GST_WARNING_OBJECT (queue, "setting temp-template property in wrong state");
2971 GST_OBJECT_UNLOCK (queue);
2976 gst_queue2_set_property (GObject * object,
2977 guint prop_id, const GValue * value, GParamSpec * pspec)
2979 GstQueue2 *queue = GST_QUEUE2 (object);
2981 /* someone could change levels here, and since this
2982 * affects the get/put funcs, we need to lock for safety. */
2983 GST_QUEUE2_MUTEX_LOCK (queue);
2986 case PROP_MAX_SIZE_BYTES:
2987 queue->max_level.bytes = g_value_get_uint (value);
2988 QUEUE_CAPACITY_CHANGE (queue);
2990 case PROP_MAX_SIZE_BUFFERS:
2991 queue->max_level.buffers = g_value_get_uint (value);
2992 QUEUE_CAPACITY_CHANGE (queue);
2994 case PROP_MAX_SIZE_TIME:
2995 queue->max_level.time = g_value_get_uint64 (value);
2996 /* set rate_time to the same value. We use an extra field in the level
2997 * structure so that we can easily access and compare it */
2998 queue->max_level.rate_time = queue->max_level.time;
2999 QUEUE_CAPACITY_CHANGE (queue);
3001 case PROP_USE_BUFFERING:
3002 queue->use_buffering = g_value_get_boolean (value);
3004 case PROP_USE_RATE_ESTIMATE:
3005 queue->use_rate_estimate = g_value_get_boolean (value);
3007 case PROP_LOW_PERCENT:
3008 queue->low_percent = g_value_get_int (value);
3010 case PROP_HIGH_PERCENT:
3011 queue->high_percent = g_value_get_int (value);
3013 case PROP_TEMP_TEMPLATE:
3014 gst_queue2_set_temp_template (queue, g_value_get_string (value));
3016 case PROP_TEMP_LOCATION:
3017 g_free (queue->temp_location);
3018 queue->temp_location = g_value_dup_string (value);
3019 /* you can set the property back to NULL to make it use the temp-tmpl
3021 queue->temp_location_set = queue->temp_location != NULL;
3023 case PROP_TEMP_REMOVE:
3024 queue->temp_remove = g_value_get_boolean (value);
3026 case PROP_RING_BUFFER_MAX_SIZE:
3027 queue->ring_buffer_max_size = g_value_get_uint64 (value);
3030 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3034 GST_QUEUE2_MUTEX_UNLOCK (queue);
3038 gst_queue2_get_property (GObject * object,
3039 guint prop_id, GValue * value, GParamSpec * pspec)
3041 GstQueue2 *queue = GST_QUEUE2 (object);
3043 GST_QUEUE2_MUTEX_LOCK (queue);
3046 case PROP_CUR_LEVEL_BYTES:
3047 g_value_set_uint (value, queue->cur_level.bytes);
3049 case PROP_CUR_LEVEL_BUFFERS:
3050 g_value_set_uint (value, queue->cur_level.buffers);
3052 case PROP_CUR_LEVEL_TIME:
3053 g_value_set_uint64 (value, queue->cur_level.time);
3055 case PROP_MAX_SIZE_BYTES:
3056 g_value_set_uint (value, queue->max_level.bytes);
3058 case PROP_MAX_SIZE_BUFFERS:
3059 g_value_set_uint (value, queue->max_level.buffers);
3061 case PROP_MAX_SIZE_TIME:
3062 g_value_set_uint64 (value, queue->max_level.time);
3064 case PROP_USE_BUFFERING:
3065 g_value_set_boolean (value, queue->use_buffering);
3067 case PROP_USE_RATE_ESTIMATE:
3068 g_value_set_boolean (value, queue->use_rate_estimate);
3070 case PROP_LOW_PERCENT:
3071 g_value_set_int (value, queue->low_percent);
3073 case PROP_HIGH_PERCENT:
3074 g_value_set_int (value, queue->high_percent);
3076 case PROP_TEMP_TEMPLATE:
3077 g_value_set_string (value, queue->temp_template);
3079 case PROP_TEMP_LOCATION:
3080 g_value_set_string (value, queue->temp_location);
3082 case PROP_TEMP_REMOVE:
3083 g_value_set_boolean (value, queue->temp_remove);
3085 case PROP_RING_BUFFER_MAX_SIZE:
3086 g_value_set_uint64 (value, queue->ring_buffer_max_size);
3089 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3093 GST_QUEUE2_MUTEX_UNLOCK (queue);