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 >= queue->srctime)
703 queue->cur_level.time = queue->sinktime - queue->srctime;
705 queue->cur_level.time = 0;
708 /* take a NEWSEGMENT event and apply the values to segment, updating the time
711 apply_segment (GstQueue2 * queue, GstEvent * event, GstSegment * segment,
717 gint64 start, stop, time;
719 gst_event_parse_new_segment_full (event, &update, &rate, &arate,
720 &format, &start, &stop, &time);
722 GST_DEBUG_OBJECT (queue,
723 "received NEWSEGMENT update %d, rate %lf, applied rate %lf, "
725 "%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
726 G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);
728 if (format == GST_FORMAT_BYTES) {
729 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
730 /* start is where we'll be getting from and as such writing next */
731 queue->current = add_range (queue, start);
732 /* update the stats for this range */
733 update_cur_level (queue, queue->current);
737 /* now configure the values, we use these to track timestamps on the
739 if (format != GST_FORMAT_TIME) {
740 /* non-time format, pretent the current time segment is closed with a
741 * 0 start and unknown stop time. */
743 format = GST_FORMAT_TIME;
748 gst_segment_set_newsegment_full (segment, update,
749 rate, arate, format, start, stop, time);
751 GST_DEBUG_OBJECT (queue,
752 "configured NEWSEGMENT %" GST_SEGMENT_FORMAT, segment);
755 queue->sink_tainted = TRUE;
757 queue->src_tainted = TRUE;
759 /* segment can update the time level of the queue */
760 update_time_level (queue);
763 /* take a buffer and update segment, updating the time level of the queue. */
765 apply_buffer (GstQueue2 * queue, GstBuffer * buffer, GstSegment * segment,
768 GstClockTime duration, timestamp;
770 timestamp = GST_BUFFER_TIMESTAMP (buffer);
771 duration = GST_BUFFER_DURATION (buffer);
773 /* if no timestamp is set, assume it's continuous with the previous
775 if (timestamp == GST_CLOCK_TIME_NONE)
776 timestamp = segment->last_stop;
779 if (duration != GST_CLOCK_TIME_NONE)
780 timestamp += duration;
782 GST_DEBUG_OBJECT (queue, "last_stop updated to %" GST_TIME_FORMAT,
783 GST_TIME_ARGS (timestamp));
785 gst_segment_set_last_stop (segment, GST_FORMAT_TIME, timestamp);
788 queue->sink_tainted = TRUE;
790 queue->src_tainted = TRUE;
792 /* calc diff with other end */
793 update_time_level (queue);
797 update_buffering (GstQueue2 * queue)
800 gboolean post = FALSE;
802 if (queue->high_percent <= 0)
805 #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)
808 /* on EOS we are always 100% full, we set the var here so that it we can
809 * reuse the logic below to stop buffering */
811 GST_LOG_OBJECT (queue, "we are EOS");
813 /* figure out the percent we are filled, we take the max of all formats. */
815 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
816 percent = GET_PERCENT (bytes, 0);
818 guint64 rb_size = queue->ring_buffer_max_size;
819 percent = GET_PERCENT (bytes, rb_size);
821 percent = MAX (percent, GET_PERCENT (time, 0));
822 percent = MAX (percent, GET_PERCENT (buffers, 0));
824 /* also apply the rate estimate when we need to */
825 if (queue->use_rate_estimate)
826 percent = MAX (percent, GET_PERCENT (rate_time, 0));
829 if (queue->is_buffering) {
831 /* if we were buffering see if we reached the high watermark */
832 if (percent >= queue->high_percent)
833 queue->is_buffering = FALSE;
835 /* we were not buffering, check if we need to start buffering if we drop
836 * below the low threshold */
837 if (percent < queue->low_percent) {
838 queue->is_buffering = TRUE;
839 queue->buffering_iteration++;
845 GstBufferingMode mode;
846 gint64 buffering_left = -1;
848 /* scale to high percent so that it becomes the 100% mark */
849 percent = percent * 100 / queue->high_percent;
854 if (percent != queue->buffering_percent) {
855 queue->buffering_percent = percent;
857 if (!QUEUE_IS_USING_QUEUE (queue)) {
858 GstFormat fmt = GST_FORMAT_BYTES;
861 if (QUEUE_IS_USING_RING_BUFFER (queue))
862 mode = GST_BUFFERING_TIMESHIFT;
864 mode = GST_BUFFERING_DOWNLOAD;
866 if (queue->byte_in_rate > 0) {
867 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &duration))
869 (gdouble) ((duration -
870 queue->current->writing_pos) * 1000) / queue->byte_in_rate;
872 buffering_left = G_MAXINT64;
875 mode = GST_BUFFERING_STREAM;
878 GST_DEBUG_OBJECT (queue, "buffering %d percent", (gint) percent);
879 message = gst_message_new_buffering (GST_OBJECT_CAST (queue),
881 gst_message_set_buffering_stats (message, mode,
882 queue->byte_in_rate, queue->byte_out_rate, buffering_left);
884 gst_element_post_message (GST_ELEMENT_CAST (queue), message);
887 GST_DEBUG_OBJECT (queue, "filled %d percent", (gint) percent);
894 reset_rate_timer (GstQueue2 * queue)
897 queue->bytes_out = 0;
898 queue->byte_in_rate = 0.0;
899 queue->byte_out_rate = 0.0;
900 queue->last_in_elapsed = 0.0;
901 queue->last_out_elapsed = 0.0;
902 queue->in_timer_started = FALSE;
903 queue->out_timer_started = FALSE;
906 /* the interval in seconds to recalculate the rate */
907 #define RATE_INTERVAL 0.2
908 /* Tuning for rate estimation. We use a large window for the input rate because
909 * it should be stable when connected to a network. The output rate is less
910 * stable (the elements preroll, queues behind a demuxer fill, ...) and should
911 * therefore adapt more quickly. */
912 #define AVG_IN(avg,val) ((avg) * 15.0 + (val)) / 16.0
913 #define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
916 update_in_rates (GstQueue2 * queue)
918 gdouble elapsed, period;
919 gdouble byte_in_rate;
921 if (!queue->in_timer_started) {
922 queue->in_timer_started = TRUE;
923 g_timer_start (queue->in_timer);
927 elapsed = g_timer_elapsed (queue->in_timer, NULL);
929 /* recalc after each interval. */
930 if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
931 period = elapsed - queue->last_in_elapsed;
933 GST_DEBUG_OBJECT (queue,
934 "rates: period %f, in %" G_GUINT64_FORMAT, period, queue->bytes_in);
936 byte_in_rate = queue->bytes_in / period;
938 if (queue->byte_in_rate == 0.0)
939 queue->byte_in_rate = byte_in_rate;
941 queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate);
943 /* reset the values to calculate rate over the next interval */
944 queue->last_in_elapsed = elapsed;
948 if (queue->byte_in_rate > 0.0) {
949 queue->cur_level.rate_time =
950 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
952 GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
953 queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
957 update_out_rates (GstQueue2 * queue)
959 gdouble elapsed, period;
960 gdouble byte_out_rate;
962 if (!queue->out_timer_started) {
963 queue->out_timer_started = TRUE;
964 g_timer_start (queue->out_timer);
968 elapsed = g_timer_elapsed (queue->out_timer, NULL);
970 /* recalc after each interval. */
971 if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
972 period = elapsed - queue->last_out_elapsed;
974 GST_DEBUG_OBJECT (queue,
975 "rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
977 byte_out_rate = queue->bytes_out / period;
979 if (queue->byte_out_rate == 0.0)
980 queue->byte_out_rate = byte_out_rate;
982 queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
984 /* reset the values to calculate rate over the next interval */
985 queue->last_out_elapsed = elapsed;
986 queue->bytes_out = 0;
988 if (queue->byte_in_rate > 0.0) {
989 queue->cur_level.rate_time =
990 queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
992 GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
993 queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
997 update_cur_pos (GstQueue2 * queue, GstQueue2Range * range, guint64 pos)
999 guint64 reading_pos, max_reading_pos;
1002 max_reading_pos = range->max_reading_pos;
1004 max_reading_pos = MAX (max_reading_pos, reading_pos);
1006 GST_DEBUG_OBJECT (queue,
1007 "updating max_reading_pos from %" G_GUINT64_FORMAT " to %"
1008 G_GUINT64_FORMAT, range->max_reading_pos, max_reading_pos);
1009 range->max_reading_pos = max_reading_pos;
1011 update_cur_level (queue, range);
1015 perform_seek_to_offset (GstQueue2 * queue, guint64 offset)
1020 GST_QUEUE2_MUTEX_UNLOCK (queue);
1022 GST_DEBUG_OBJECT (queue, "Seeking to %" G_GUINT64_FORMAT, offset);
1025 gst_event_new_seek (1.0, GST_FORMAT_BYTES,
1026 GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
1027 GST_SEEK_TYPE_NONE, -1);
1029 res = gst_pad_push_event (queue->sinkpad, event);
1030 GST_QUEUE2_MUTEX_LOCK (queue);
1033 queue->current = add_range (queue, offset);
1038 /* see if there is enough data in the file to read a full buffer */
1040 gst_queue2_have_data (GstQueue2 * queue, guint64 offset, guint length)
1042 GstQueue2Range *range;
1044 GST_DEBUG_OBJECT (queue, "looking for offset %" G_GUINT64_FORMAT ", len %u",
1047 if ((range = find_range (queue, offset))) {
1048 if (queue->current != range) {
1049 GST_DEBUG_OBJECT (queue, "switching ranges, do seek to range position");
1050 perform_seek_to_offset (queue, range->writing_pos);
1053 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1054 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1056 /* we have a range for offset */
1057 GST_DEBUG_OBJECT (queue,
1058 "we have a range %p, offset %" G_GUINT64_FORMAT ", writing_pos %"
1059 G_GUINT64_FORMAT, range, range->offset, range->writing_pos);
1061 if (!QUEUE_IS_USING_RING_BUFFER (queue) && queue->is_eos)
1064 if (offset + length <= range->writing_pos)
1067 GST_DEBUG_OBJECT (queue,
1068 "Need more data (%" G_GUINT64_FORMAT " bytes more)",
1069 (offset + length) - range->writing_pos);
1072 GST_INFO_OBJECT (queue, "not found in any range");
1073 /* we don't have the range, see how far away we are, FIXME, find a good
1074 * threshold based on the incomming rate. */
1075 if (!queue->is_eos && queue->current) {
1076 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1077 if (offset < queue->current->offset || offset >
1078 queue->current->writing_pos + QUEUE_MAX_BYTES (queue) -
1079 queue->cur_level.bytes) {
1080 perform_seek_to_offset (queue, offset);
1082 GST_INFO_OBJECT (queue,
1083 "requested data is within range, wait for data");
1085 } else if (offset < queue->current->writing_pos + 200000) {
1086 update_cur_pos (queue, queue->current, offset + length);
1087 GST_INFO_OBJECT (queue, "wait for data");
1092 /* too far away, do a seek */
1093 perform_seek_to_offset (queue, offset);
1100 #define FSEEK_FILE(file,offset) (fseeko (file, (off_t) offset, SEEK_SET) != 0)
1101 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1102 #define FSEEK_FILE(file,offset) (lseek (fileno (file), (off_t) offset, SEEK_SET) == (off_t) -1)
1104 #define FSEEK_FILE(file,offset) (fseek (file, offset, SEEK_SET) != 0)
1108 gst_queue2_read_data_at_offset (GstQueue2 * queue, guint64 offset, guint length,
1111 guint8 *ring_buffer;
1114 ring_buffer = queue->ring_buffer;
1116 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, offset))
1119 /* this should not block */
1120 GST_LOG_OBJECT (queue, "Reading %d bytes from offset %" G_GUINT64_FORMAT,
1122 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1123 res = fread (dst, 1, length, queue->temp_file);
1125 memcpy (dst, ring_buffer + offset, length);
1129 GST_LOG_OBJECT (queue, "read %" G_GSIZE_FORMAT " bytes", res);
1131 if (G_UNLIKELY (res < length)) {
1132 if (!QUEUE_IS_USING_TEMP_FILE (queue))
1133 goto could_not_read;
1134 /* check for errors or EOF */
1135 if (ferror (queue->temp_file))
1136 goto could_not_read;
1137 if (feof (queue->temp_file) && length > 0)
1145 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1146 return GST_FLOW_ERROR;
1150 GST_ELEMENT_ERROR (queue, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
1151 return GST_FLOW_ERROR;
1155 GST_DEBUG ("non-regular file hits EOS");
1156 return GST_FLOW_UNEXPECTED;
1160 static GstFlowReturn
1161 gst_queue2_create_read (GstQueue2 * queue, guint64 offset, guint length,
1162 GstBuffer ** buffer)
1166 guint64 file_offset;
1167 guint block_length, remaining, read_length;
1172 /* allocate the output buffer of the requested size */
1173 buf = gst_buffer_new_and_alloc (length);
1174 data = GST_BUFFER_DATA (buf);
1176 GST_DEBUG_OBJECT (queue, "Reading %u bytes from %" G_GUINT64_FORMAT, length,
1180 rb_size = queue->ring_buffer_max_size;
1183 while (remaining > 0) {
1184 /* configure how much/whether to read */
1185 if (!gst_queue2_have_data (queue, rpos, remaining)) {
1188 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1191 /* calculate how far away the offset is */
1192 if (queue->current->writing_pos > rpos)
1193 level = queue->current->writing_pos - rpos;
1197 GST_DEBUG_OBJECT (queue,
1198 "reading %" G_GUINT64_FORMAT ", writing %" G_GUINT64_FORMAT
1199 ", level %" G_GUINT64_FORMAT,
1200 rpos, queue->current->writing_pos, level);
1202 if (level >= rb_size) {
1203 /* we don't have the data but if we have a ring buffer that is full, we
1205 GST_DEBUG_OBJECT (queue,
1206 "ring buffer full, reading ring-buffer-max-size %"
1207 G_GUINT64_FORMAT " bytes", rb_size);
1208 read_length = rb_size;
1209 } else if (queue->is_eos) {
1210 /* won't get any more data so read any data we have */
1212 GST_DEBUG_OBJECT (queue,
1213 "EOS hit but read %" G_GUINT64_FORMAT " bytes that we have",
1215 read_length = level;
1217 GST_DEBUG_OBJECT (queue,
1218 "EOS hit and we don't have any requested data");
1219 gst_buffer_unref (buf);
1220 return GST_FLOW_UNEXPECTED;
1225 if (read_length == 0) {
1226 if (QUEUE_IS_USING_RING_BUFFER (queue)
1227 && queue->current->max_reading_pos > rpos) {
1228 /* protect cached data (data between offset and max_reading_pos)
1229 * and update current level */
1230 GST_DEBUG_OBJECT (queue,
1231 "protecting cached data [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1232 "]", rpos, queue->current->max_reading_pos);
1233 queue->current->max_reading_pos = rpos;
1234 update_cur_level (queue, queue->current);
1236 GST_DEBUG_OBJECT (queue, "waiting for add");
1237 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
1241 /* we have the requested data so read it */
1242 read_length = remaining;
1245 /* set range reading_pos to actual reading position for this read */
1246 queue->current->reading_pos = rpos;
1248 /* congfigure how much and from where to read */
1249 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1251 (queue->current->rb_offset + (rpos -
1252 queue->current->offset)) % rb_size;
1253 if (file_offset + read_length > rb_size) {
1254 block_length = rb_size - file_offset;
1256 block_length = read_length;
1260 block_length = read_length;
1263 /* while we still have data to read, we loop */
1264 while (read_length > 0) {
1266 gst_queue2_read_data_at_offset (queue, file_offset, block_length,
1268 if (read_return < 0)
1271 file_offset += read_return;
1272 if (QUEUE_IS_USING_RING_BUFFER (queue))
1273 file_offset %= rb_size;
1275 data += read_return;
1276 read_length -= read_return;
1277 block_length = read_length;
1278 remaining -= read_return;
1280 rpos = (queue->current->reading_pos += read_return);
1281 update_cur_pos (queue, queue->current, queue->current->reading_pos);
1283 GST_QUEUE2_SIGNAL_DEL (queue);
1284 GST_DEBUG_OBJECT (queue, "%u bytes left to read", remaining);
1287 GST_BUFFER_SIZE (buf) = length;
1288 GST_BUFFER_OFFSET (buf) = offset;
1289 GST_BUFFER_OFFSET_END (buf) = offset + length;
1298 GST_DEBUG_OBJECT (queue, "we are flushing");
1299 gst_buffer_unref (buf);
1300 return GST_FLOW_WRONG_STATE;
1304 GST_DEBUG_OBJECT (queue, "we have a read error");
1305 gst_buffer_unref (buf);
1310 /* should be called with QUEUE_LOCK */
1311 static GstMiniObject *
1312 gst_queue2_read_item_from_file (GstQueue2 * queue)
1314 GstMiniObject *item;
1316 if (queue->starting_segment != NULL) {
1317 item = GST_MINI_OBJECT_CAST (queue->starting_segment);
1318 queue->starting_segment = NULL;
1322 guint64 reading_pos;
1324 reading_pos = queue->current->reading_pos;
1327 gst_queue2_create_read (queue, reading_pos, DEFAULT_BUFFER_SIZE,
1332 item = GST_MINI_OBJECT_CAST (buffer);
1334 case GST_FLOW_UNEXPECTED:
1335 item = GST_MINI_OBJECT_CAST (gst_event_new_eos ());
1345 /* must be called with MUTEX_LOCK. Will briefly release the lock when notifying
1346 * the temp filename. */
1348 gst_queue2_open_temp_location_file (GstQueue2 * queue)
1353 if (queue->temp_file)
1354 goto already_opened;
1356 GST_DEBUG_OBJECT (queue, "opening temp file %s", queue->temp_template);
1358 /* we have two cases:
1359 * - temp_location was set to something !NULL (Deprecated). in this case we
1360 * open the specified filename.
1361 * - temp_template was set, allocate a filename and open that filename
1363 if (!queue->temp_location_set) {
1365 if (queue->temp_template == NULL)
1368 /* make copy of the template, we don't want to change this */
1369 name = g_strdup (queue->temp_template);
1370 fd = g_mkstemp (name);
1372 goto mkstemp_failed;
1374 /* open the file for update/writing */
1375 queue->temp_file = fdopen (fd, "wb+");
1376 /* error creating file */
1377 if (queue->temp_file == NULL)
1380 g_free (queue->temp_location);
1381 queue->temp_location = name;
1383 GST_QUEUE2_MUTEX_UNLOCK (queue);
1385 /* we can't emit the notify with the lock */
1386 g_object_notify (G_OBJECT (queue), "temp-location");
1388 GST_QUEUE2_MUTEX_LOCK (queue);
1390 /* open the file for update/writing, this is deprecated but we still need to
1391 * support it for API/ABI compatibility */
1392 queue->temp_file = g_fopen (queue->temp_location, "wb+");
1393 /* error creating file */
1394 if (queue->temp_file == NULL)
1397 GST_DEBUG_OBJECT (queue, "opened temp file %s", queue->temp_template);
1404 GST_DEBUG_OBJECT (queue, "temp file was already open");
1409 GST_ELEMENT_ERROR (queue, RESOURCE, NOT_FOUND,
1410 (_("No Temp directory specified.")), (NULL));
1415 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1416 (_("Could not create temp file \"%s\"."), queue->temp_template),
1423 GST_ELEMENT_ERROR (queue, RESOURCE, OPEN_READ,
1424 (_("Could not open file \"%s\" for reading."), name), GST_ERROR_SYSTEM);
1433 gst_queue2_close_temp_location_file (GstQueue2 * queue)
1436 if (queue->temp_file == NULL)
1439 GST_DEBUG_OBJECT (queue, "closing temp file");
1441 fflush (queue->temp_file);
1442 fclose (queue->temp_file);
1444 if (queue->temp_remove)
1445 remove (queue->temp_location);
1447 queue->temp_file = NULL;
1448 clean_ranges (queue);
1452 gst_queue2_flush_temp_file (GstQueue2 * queue)
1454 if (queue->temp_file == NULL)
1457 GST_DEBUG_OBJECT (queue, "flushing temp file");
1459 queue->temp_file = g_freopen (queue->temp_location, "wb+", queue->temp_file);
1463 gst_queue2_locked_flush (GstQueue2 * queue)
1465 if (!QUEUE_IS_USING_QUEUE (queue)) {
1466 if (QUEUE_IS_USING_TEMP_FILE (queue))
1467 gst_queue2_flush_temp_file (queue);
1468 init_ranges (queue);
1470 while (!g_queue_is_empty (queue->queue)) {
1471 GstMiniObject *data = g_queue_pop_head (queue->queue);
1473 /* Then lose another reference because we are supposed to destroy that
1474 data when flushing */
1475 gst_mini_object_unref (data);
1478 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1479 gst_segment_init (&queue->sink_segment, GST_FORMAT_TIME);
1480 gst_segment_init (&queue->src_segment, GST_FORMAT_TIME);
1481 queue->sinktime = queue->srctime = GST_CLOCK_TIME_NONE;
1482 queue->sink_tainted = queue->src_tainted = TRUE;
1483 if (queue->starting_segment != NULL)
1484 gst_event_unref (queue->starting_segment);
1485 queue->starting_segment = NULL;
1486 queue->segment_event_received = FALSE;
1488 /* we deleted a lot of something */
1489 GST_QUEUE2_SIGNAL_DEL (queue);
1493 gst_queue2_wait_free_space (GstQueue2 * queue)
1495 /* We make space available if we're "full" according to whatever
1496 * the user defined as "full". */
1497 if (gst_queue2_is_filled (queue)) {
1500 /* pause the timer while we wait. The fact that we are waiting does not mean
1501 * the byterate on the input pad is lower */
1502 if ((started = queue->in_timer_started))
1503 g_timer_stop (queue->in_timer);
1505 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
1506 "queue is full, waiting for free space");
1508 /* Wait for space to be available, we could be unlocked because of a flush. */
1509 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1511 while (gst_queue2_is_filled (queue));
1513 /* and continue if we were running before */
1515 g_timer_continue (queue->in_timer);
1522 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "queue is flushing");
1528 gst_queue2_create_write (GstQueue2 * queue, GstBuffer * buffer)
1530 guint8 *data, *ring_buffer;
1531 guint size, rb_size;
1532 guint64 writing_pos, new_writing_pos;
1533 GstQueue2Range *range, *prev, *next;
1535 if (QUEUE_IS_USING_RING_BUFFER (queue))
1536 writing_pos = queue->current->rb_writing_pos;
1538 writing_pos = queue->current->writing_pos;
1539 ring_buffer = queue->ring_buffer;
1540 rb_size = queue->ring_buffer_max_size;
1542 size = GST_BUFFER_SIZE (buffer);
1543 data = GST_BUFFER_DATA (buffer);
1545 GST_DEBUG_OBJECT (queue, "Writing %u bytes to %" G_GUINT64_FORMAT, size,
1546 GST_BUFFER_OFFSET (buffer));
1551 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1554 /* calculate the space in the ring buffer not used by data from
1555 * the current range */
1556 while (QUEUE_MAX_BYTES (queue) <= queue->cur_level.bytes) {
1557 /* wait until there is some free space */
1558 GST_QUEUE2_WAIT_DEL_CHECK (queue, queue->sinkresult, out_flushing);
1560 /* get the amount of space we have */
1561 space = QUEUE_MAX_BYTES (queue) - queue->cur_level.bytes;
1563 /* calculate if we need to split or if we can write the entire
1565 to_write = MIN (size, space);
1567 /* the writing position in the ring buffer after writing (part
1568 * or all of) the buffer */
1569 new_writing_pos = (writing_pos + to_write) % rb_size;
1572 range = queue->ranges;
1574 /* if we need to overwrite data in the ring buffer, we need to
1577 * warning: this code is complicated and includes some
1578 * simplifications - pen, paper and diagrams for the cases
1581 guint64 range_data_start, range_data_end;
1582 GstQueue2Range *range_to_destroy = NULL;
1584 range_data_start = range->rb_offset;
1585 range_data_end = range->rb_writing_pos;
1587 /* handle the special case where the range has no data in it */
1588 if (range->writing_pos == range->offset) {
1589 if (range != queue->current) {
1590 GST_DEBUG_OBJECT (queue,
1591 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1592 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1594 range_to_destroy = range;
1596 prev->next = range->next;
1601 if (range_data_end > range_data_start) {
1602 if (writing_pos >= range_data_end && new_writing_pos >= writing_pos)
1605 if (new_writing_pos > range_data_start) {
1606 if (new_writing_pos >= range_data_end) {
1607 GST_DEBUG_OBJECT (queue,
1608 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1609 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1611 range_to_destroy = range;
1613 prev->next = range->next;
1615 GST_DEBUG_OBJECT (queue,
1616 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1617 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1618 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1619 range->offset + new_writing_pos - range_data_start,
1621 range->offset += (new_writing_pos - range_data_start);
1622 range->rb_offset = new_writing_pos;
1626 guint64 new_wpos_virt = writing_pos + to_write;
1628 if (new_wpos_virt <= range_data_start)
1631 if (new_wpos_virt > rb_size && new_writing_pos >= range_data_end) {
1632 GST_DEBUG_OBJECT (queue,
1633 "Removing range: offset %" G_GUINT64_FORMAT ", wpos %"
1634 G_GUINT64_FORMAT, range->offset, range->writing_pos);
1636 range_to_destroy = range;
1638 prev->next = range->next;
1640 GST_DEBUG_OBJECT (queue,
1641 "advancing offsets from %" G_GUINT64_FORMAT " (%"
1642 G_GUINT64_FORMAT ") to %" G_GUINT64_FORMAT " (%"
1643 G_GUINT64_FORMAT ")", range->offset, range->rb_offset,
1644 range->offset + new_writing_pos - range_data_start,
1646 range->offset += (new_wpos_virt - range_data_start);
1647 range->rb_offset = new_writing_pos;
1652 if (!range_to_destroy)
1655 range = range->next;
1656 if (range_to_destroy) {
1657 if (range_to_destroy == queue->ranges)
1658 queue->ranges = range;
1659 g_slice_free (GstQueue2Range, range_to_destroy);
1660 range_to_destroy = NULL;
1665 new_writing_pos = writing_pos + to_write;
1668 if (QUEUE_IS_USING_TEMP_FILE (queue)
1669 && FSEEK_FILE (queue->temp_file, writing_pos))
1672 if (new_writing_pos > writing_pos) {
1673 GST_INFO_OBJECT (queue,
1674 "writing %u bytes to range [%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT
1675 "] (rb wpos %" G_GUINT64_FORMAT ")", to_write, queue->current->offset,
1676 queue->current->writing_pos, queue->current->rb_writing_pos);
1677 /* either not using ring buffer or no wrapping, just write */
1678 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1679 if (fwrite (data, to_write, 1, queue->temp_file) != 1)
1682 memcpy (ring_buffer + writing_pos, data, to_write);
1685 if (!QUEUE_IS_USING_RING_BUFFER (queue)) {
1686 /* try to merge with next range */
1687 while ((next = queue->current->next)) {
1688 GST_INFO_OBJECT (queue,
1689 "checking merge with next range %" G_GUINT64_FORMAT " < %"
1690 G_GUINT64_FORMAT, new_writing_pos, next->offset);
1691 if (new_writing_pos < next->offset)
1694 GST_DEBUG_OBJECT (queue, "merging ranges %" G_GUINT64_FORMAT,
1697 /* remove the group, we could choose to not read the data in this range
1698 * again. This would involve us doing a seek to the current writing position
1699 * in the range. FIXME, It would probably make sense to do a seek when there
1700 * is a lot of data in the range we merged with to avoid reading it all
1702 queue->current->next = next->next;
1703 g_slice_free (GstQueue2Range, next);
1705 debug_ranges (queue);
1707 goto update_and_signal;
1711 guint block_one, block_two;
1713 block_one = rb_size - writing_pos;
1714 block_two = to_write - block_one;
1716 if (block_one > 0) {
1717 GST_INFO_OBJECT (queue, "writing %u bytes", block_one);
1718 /* write data to end of ring buffer */
1719 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1720 if (fwrite (data, block_one, 1, queue->temp_file) != 1)
1723 memcpy (ring_buffer + writing_pos, data, block_one);
1727 if (QUEUE_IS_USING_TEMP_FILE (queue) && FSEEK_FILE (queue->temp_file, 0))
1730 if (block_two > 0) {
1731 GST_INFO_OBJECT (queue, "writing %u bytes", block_two);
1732 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
1733 if (fwrite (data + block_one, block_two, 1, queue->temp_file) != 1)
1736 memcpy (ring_buffer, data + block_one, block_two);
1742 /* update the writing positions */
1744 GST_INFO_OBJECT (queue,
1745 "wrote %u bytes to %" G_GUINT64_FORMAT " (%u bytes remaining to write)",
1746 to_write, writing_pos, size);
1748 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
1750 queue->current->writing_pos += to_write;
1751 queue->current->rb_writing_pos = writing_pos = new_writing_pos;
1753 queue->current->writing_pos = writing_pos = new_writing_pos;
1755 update_cur_level (queue, queue->current);
1757 /* update the buffering status */
1758 if (queue->use_buffering)
1759 update_buffering (queue);
1761 GST_INFO_OBJECT (queue, "cur_level.bytes %u (max %" G_GUINT64_FORMAT ")",
1762 queue->cur_level.bytes, QUEUE_MAX_BYTES (queue));
1764 GST_QUEUE2_SIGNAL_ADD (queue);
1772 GST_DEBUG_OBJECT (queue, "we are flushing");
1773 /* FIXME - GST_FLOW_UNEXPECTED ? */
1778 GST_ELEMENT_ERROR (queue, RESOURCE, SEEK, (NULL), GST_ERROR_SYSTEM);
1785 GST_ELEMENT_ERROR (queue, RESOURCE, NO_SPACE_LEFT, (NULL), (NULL));
1789 GST_ELEMENT_ERROR (queue, RESOURCE, WRITE,
1790 (_("Error while writing to download file.")),
1791 ("%s", g_strerror (errno)));
1798 /* enqueue an item an update the level stats */
1800 gst_queue2_locked_enqueue (GstQueue2 * queue, gpointer item, gboolean isbuffer)
1806 buffer = GST_BUFFER_CAST (item);
1807 size = GST_BUFFER_SIZE (buffer);
1809 /* add buffer to the statistics */
1810 if (QUEUE_IS_USING_QUEUE (queue)) {
1811 queue->cur_level.buffers++;
1812 queue->cur_level.bytes += size;
1814 queue->bytes_in += size;
1816 /* apply new buffer to segment stats */
1817 apply_buffer (queue, buffer, &queue->sink_segment, TRUE);
1818 /* update the byterate stats */
1819 update_in_rates (queue);
1821 if (!QUEUE_IS_USING_QUEUE (queue)) {
1822 /* FIXME - check return value? */
1823 gst_queue2_create_write (queue, buffer);
1825 } else if (GST_IS_EVENT (item)) {
1828 event = GST_EVENT_CAST (item);
1830 switch (GST_EVENT_TYPE (event)) {
1832 /* Zero the thresholds, this makes sure the queue is completely
1833 * filled and we can read all data from the queue. */
1834 GST_DEBUG_OBJECT (queue, "we have EOS");
1835 queue->is_eos = TRUE;
1837 case GST_EVENT_NEWSEGMENT:
1838 apply_segment (queue, event, &queue->sink_segment, TRUE);
1839 /* This is our first new segment, we hold it
1840 * as we can't save it on the temp file */
1841 if (!QUEUE_IS_USING_QUEUE (queue)) {
1842 if (queue->segment_event_received)
1843 goto unexpected_event;
1845 queue->segment_event_received = TRUE;
1846 if (queue->starting_segment != NULL)
1847 gst_event_unref (queue->starting_segment);
1848 queue->starting_segment = event;
1851 /* a new segment allows us to accept more buffers if we got UNEXPECTED
1852 * from downstream */
1853 queue->unexpected = FALSE;
1856 if (!QUEUE_IS_USING_QUEUE (queue))
1857 goto unexpected_event;
1861 g_warning ("Unexpected item %p added in queue %s (refcounting problem?)",
1862 item, GST_OBJECT_NAME (queue));
1863 /* we can't really unref since we don't know what it is */
1868 /* update the buffering status */
1869 if (queue->use_buffering)
1870 update_buffering (queue);
1872 if (QUEUE_IS_USING_QUEUE (queue)) {
1873 g_queue_push_tail (queue->queue, item);
1875 gst_mini_object_unref (GST_MINI_OBJECT_CAST (item));
1878 GST_QUEUE2_SIGNAL_ADD (queue);
1887 ("Unexpected event of kind %s can't be added in temp file of queue %s ",
1888 gst_event_type_get_name (GST_EVENT_TYPE (item)),
1889 GST_OBJECT_NAME (queue));
1890 gst_event_unref (GST_EVENT_CAST (item));
1895 /* dequeue an item from the queue and update level stats */
1896 static GstMiniObject *
1897 gst_queue2_locked_dequeue (GstQueue2 * queue, gboolean * is_buffer)
1899 GstMiniObject *item;
1901 if (!QUEUE_IS_USING_QUEUE (queue))
1902 item = gst_queue2_read_item_from_file (queue);
1904 item = g_queue_pop_head (queue->queue);
1909 if (GST_IS_BUFFER (item)) {
1913 buffer = GST_BUFFER_CAST (item);
1914 size = GST_BUFFER_SIZE (buffer);
1917 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1918 "retrieved buffer %p from queue", buffer);
1920 if (QUEUE_IS_USING_QUEUE (queue)) {
1921 queue->cur_level.buffers--;
1922 queue->cur_level.bytes -= size;
1924 queue->bytes_out += size;
1926 apply_buffer (queue, buffer, &queue->src_segment, FALSE);
1927 /* update the byterate stats */
1928 update_out_rates (queue);
1929 /* update the buffering */
1930 if (queue->use_buffering)
1931 update_buffering (queue);
1933 } else if (GST_IS_EVENT (item)) {
1934 GstEvent *event = GST_EVENT_CAST (item);
1938 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
1939 "retrieved event %p from queue", event);
1941 switch (GST_EVENT_TYPE (event)) {
1943 /* queue is empty now that we dequeued the EOS */
1944 GST_QUEUE2_CLEAR_LEVEL (queue->cur_level);
1946 case GST_EVENT_NEWSEGMENT:
1947 apply_segment (queue, event, &queue->src_segment, FALSE);
1954 ("Unexpected item %p dequeued from queue %s (refcounting problem?)",
1955 item, GST_OBJECT_NAME (queue));
1958 GST_QUEUE2_SIGNAL_DEL (queue);
1965 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "the queue is empty");
1971 gst_queue2_handle_sink_event (GstPad * pad, GstEvent * event)
1975 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
1977 switch (GST_EVENT_TYPE (event)) {
1978 case GST_EVENT_FLUSH_START:
1980 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush start event");
1981 if (QUEUE_IS_USING_QUEUE (queue)) {
1983 gst_pad_push_event (queue->srcpad, event);
1985 /* now unblock the chain function */
1986 GST_QUEUE2_MUTEX_LOCK (queue);
1987 queue->srcresult = GST_FLOW_WRONG_STATE;
1988 queue->sinkresult = GST_FLOW_WRONG_STATE;
1989 /* unblock the loop and chain functions */
1990 GST_QUEUE2_SIGNAL_ADD (queue);
1991 GST_QUEUE2_SIGNAL_DEL (queue);
1992 GST_QUEUE2_MUTEX_UNLOCK (queue);
1994 /* make sure it pauses, this should happen since we sent
1995 * flush_start downstream. */
1996 gst_pad_pause_task (queue->srcpad);
1997 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "loop stopped");
1999 GST_QUEUE2_MUTEX_LOCK (queue);
2000 /* flush the sink pad */
2001 queue->sinkresult = GST_FLOW_WRONG_STATE;
2002 GST_QUEUE2_SIGNAL_DEL (queue);
2003 GST_QUEUE2_MUTEX_UNLOCK (queue);
2005 gst_event_unref (event);
2009 case GST_EVENT_FLUSH_STOP:
2011 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "received flush stop event");
2013 if (QUEUE_IS_USING_QUEUE (queue)) {
2015 gst_pad_push_event (queue->srcpad, event);
2017 GST_QUEUE2_MUTEX_LOCK (queue);
2018 gst_queue2_locked_flush (queue);
2019 queue->srcresult = GST_FLOW_OK;
2020 queue->sinkresult = GST_FLOW_OK;
2021 queue->is_eos = FALSE;
2022 queue->unexpected = FALSE;
2023 /* reset rate counters */
2024 reset_rate_timer (queue);
2025 gst_pad_start_task (queue->srcpad, (GstTaskFunction) gst_queue2_loop,
2027 GST_QUEUE2_MUTEX_UNLOCK (queue);
2029 GST_QUEUE2_MUTEX_LOCK (queue);
2030 queue->segment_event_received = FALSE;
2031 queue->is_eos = FALSE;
2032 queue->unexpected = FALSE;
2033 queue->sinkresult = GST_FLOW_OK;
2034 GST_QUEUE2_MUTEX_UNLOCK (queue);
2036 gst_event_unref (event);
2041 if (GST_EVENT_IS_SERIALIZED (event)) {
2042 /* serialized events go in the queue */
2043 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2044 /* refuse more events on EOS */
2047 gst_queue2_locked_enqueue (queue, event, FALSE);
2048 GST_QUEUE2_MUTEX_UNLOCK (queue);
2050 /* non-serialized events are passed upstream. */
2051 gst_pad_push_event (queue->srcpad, event);
2061 GST_DEBUG_OBJECT (queue, "refusing event, we are flushing");
2062 GST_QUEUE2_MUTEX_UNLOCK (queue);
2063 gst_event_unref (event);
2068 GST_DEBUG_OBJECT (queue, "refusing event, we are EOS");
2069 GST_QUEUE2_MUTEX_UNLOCK (queue);
2070 gst_event_unref (event);
2076 gst_queue2_is_empty (GstQueue2 * queue)
2078 /* never empty on EOS */
2082 if (!QUEUE_IS_USING_QUEUE (queue) && queue->current) {
2083 return queue->current->writing_pos <= queue->current->max_reading_pos;
2085 if (queue->queue->length == 0)
2093 gst_queue2_is_filled (GstQueue2 * queue)
2097 /* always filled on EOS */
2101 #define CHECK_FILLED(format,alt_max) ((queue->max_level.format) > 0 && \
2102 (queue->cur_level.format) >= ((alt_max) ? \
2103 MIN ((queue->max_level.format), (alt_max)) : (queue->max_level.format)))
2105 /* if using a ring buffer we're filled if all ring buffer space is used
2106 * _by the current range_ */
2107 if (QUEUE_IS_USING_RING_BUFFER (queue)) {
2108 guint64 rb_size = queue->ring_buffer_max_size;
2109 GST_DEBUG_OBJECT (queue,
2110 "max bytes %u, rb size %" G_GUINT64_FORMAT ", cur bytes %u",
2111 queue->max_level.bytes, rb_size, queue->cur_level.bytes);
2112 return CHECK_FILLED (bytes, rb_size);
2115 /* if using file, we're never filled if we don't have EOS */
2116 if (QUEUE_IS_USING_TEMP_FILE (queue))
2119 /* we are never filled when we have no buffers at all */
2120 if (queue->cur_level.buffers == 0)
2123 /* we are filled if one of the current levels exceeds the max */
2124 res = CHECK_FILLED (buffers, 0) || CHECK_FILLED (bytes, 0)
2125 || CHECK_FILLED (time, 0);
2127 /* if we need to, use the rate estimate to check against the max time we are
2128 * allowed to queue */
2129 if (queue->use_rate_estimate)
2130 res |= CHECK_FILLED (rate_time, 0);
2136 static GstFlowReturn
2137 gst_queue2_chain (GstPad * pad, GstBuffer * buffer)
2141 queue = GST_QUEUE2 (GST_OBJECT_PARENT (pad));
2143 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2144 "received buffer %p of size %d, time %" GST_TIME_FORMAT ", duration %"
2145 GST_TIME_FORMAT, buffer, GST_BUFFER_SIZE (buffer),
2146 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
2147 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
2149 /* we have to lock the queue since we span threads */
2150 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->sinkresult, out_flushing);
2151 /* when we received EOS, we refuse more data */
2154 /* when we received unexpected from downstream, refuse more buffers */
2155 if (queue->unexpected)
2156 goto out_unexpected;
2158 if (!gst_queue2_wait_free_space (queue))
2161 /* put buffer in queue now */
2162 gst_queue2_locked_enqueue (queue, buffer, TRUE);
2163 GST_QUEUE2_MUTEX_UNLOCK (queue);
2167 /* special conditions */
2170 GstFlowReturn ret = queue->sinkresult;
2172 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2173 "exit because task paused, reason: %s", gst_flow_get_name (ret));
2174 GST_QUEUE2_MUTEX_UNLOCK (queue);
2175 gst_buffer_unref (buffer);
2181 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we received EOS");
2182 GST_QUEUE2_MUTEX_UNLOCK (queue);
2183 gst_buffer_unref (buffer);
2185 return GST_FLOW_UNEXPECTED;
2189 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2190 "exit because we received UNEXPECTED");
2191 GST_QUEUE2_MUTEX_UNLOCK (queue);
2192 gst_buffer_unref (buffer);
2194 return GST_FLOW_UNEXPECTED;
2198 /* dequeue an item from the queue an push it downstream. This functions returns
2199 * the result of the push. */
2200 static GstFlowReturn
2201 gst_queue2_push_one (GstQueue2 * queue)
2203 GstFlowReturn result = GST_FLOW_OK;
2204 GstMiniObject *data;
2205 gboolean is_buffer = FALSE;
2207 data = gst_queue2_locked_dequeue (queue, &is_buffer);
2212 GST_QUEUE2_MUTEX_UNLOCK (queue);
2218 buffer = GST_BUFFER_CAST (data);
2219 caps = GST_BUFFER_CAPS (buffer);
2221 /* set caps before pushing the buffer so that core does not try to do
2222 * something fancy to check if this is possible. */
2223 if (caps && caps != GST_PAD_CAPS (queue->srcpad))
2224 gst_pad_set_caps (queue->srcpad, caps);
2226 result = gst_pad_push (queue->srcpad, buffer);
2228 /* need to check for srcresult here as well */
2229 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2230 if (result == GST_FLOW_UNEXPECTED) {
2231 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2232 "got UNEXPECTED from downstream");
2233 /* stop pushing buffers, we dequeue all items until we see an item that we
2234 * can push again, which is EOS or NEWSEGMENT. If there is nothing in the
2235 * queue we can push, we set a flag to make the sinkpad refuse more
2236 * buffers with an UNEXPECTED return value until we receive something
2237 * pushable again or we get flushed. */
2238 while ((data = gst_queue2_locked_dequeue (queue, &is_buffer))) {
2240 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2241 "dropping UNEXPECTED buffer %p", data);
2242 gst_buffer_unref (GST_BUFFER_CAST (data));
2243 } else if (GST_IS_EVENT (data)) {
2244 GstEvent *event = GST_EVENT_CAST (data);
2245 GstEventType type = GST_EVENT_TYPE (event);
2247 if (type == GST_EVENT_EOS || type == GST_EVENT_NEWSEGMENT) {
2248 /* we found a pushable item in the queue, push it out */
2249 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2250 "pushing pushable event %s after UNEXPECTED",
2251 GST_EVENT_TYPE_NAME (event));
2254 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2255 "dropping UNEXPECTED event %p", event);
2256 gst_event_unref (event);
2259 /* no more items in the queue. Set the unexpected flag so that upstream
2260 * make us refuse any more buffers on the sinkpad. Since we will still
2261 * accept EOS and NEWSEGMENT we return _FLOW_OK to the caller so that the
2262 * task function does not shut down. */
2263 queue->unexpected = TRUE;
2264 result = GST_FLOW_OK;
2266 } else if (GST_IS_EVENT (data)) {
2267 GstEvent *event = GST_EVENT_CAST (data);
2268 GstEventType type = GST_EVENT_TYPE (event);
2270 gst_pad_push_event (queue->srcpad, event);
2272 /* if we're EOS, return UNEXPECTED so that the task pauses. */
2273 if (type == GST_EVENT_EOS) {
2274 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2275 "pushed EOS event %p, return UNEXPECTED", event);
2276 result = GST_FLOW_UNEXPECTED;
2279 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2286 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2287 "exit because we have no item in the queue");
2288 return GST_FLOW_ERROR;
2292 GST_CAT_LOG_OBJECT (queue_dataflow, queue, "exit because we are flushing");
2293 return GST_FLOW_WRONG_STATE;
2297 /* called repeadedly with @pad as the source pad. This function should push out
2298 * data to the peer element. */
2300 gst_queue2_loop (GstPad * pad)
2305 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2307 /* have to lock for thread-safety */
2308 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2310 if (gst_queue2_is_empty (queue)) {
2313 /* pause the timer while we wait. The fact that we are waiting does not mean
2314 * the byterate on the output pad is lower */
2315 if ((started = queue->out_timer_started))
2316 g_timer_stop (queue->out_timer);
2318 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
2319 "queue is empty, waiting for new data");
2321 /* Wait for data to be available, we could be unlocked because of a flush. */
2322 GST_QUEUE2_WAIT_ADD_CHECK (queue, queue->srcresult, out_flushing);
2324 while (gst_queue2_is_empty (queue));
2326 /* and continue if we were running before */
2328 g_timer_continue (queue->out_timer);
2330 ret = gst_queue2_push_one (queue);
2331 queue->srcresult = ret;
2332 queue->sinkresult = ret;
2333 if (ret != GST_FLOW_OK)
2336 GST_QUEUE2_MUTEX_UNLOCK (queue);
2343 gboolean eos = queue->is_eos;
2344 GstFlowReturn ret = queue->srcresult;
2346 gst_pad_pause_task (queue->srcpad);
2347 GST_QUEUE2_MUTEX_UNLOCK (queue);
2348 GST_CAT_LOG_OBJECT (queue_dataflow, queue,
2349 "pause task, reason: %s", gst_flow_get_name (queue->srcresult));
2350 /* let app know about us giving up if upstream is not expected to do so */
2351 /* UNEXPECTED is already taken care of elsewhere */
2352 if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED)) {
2353 GST_ELEMENT_ERROR (queue, STREAM, FAILED,
2354 (_("Internal data flow error.")),
2355 ("streaming task paused, reason %s (%d)",
2356 gst_flow_get_name (ret), ret));
2357 gst_pad_push_event (queue->srcpad, gst_event_new_eos ());
2364 gst_queue2_handle_src_event (GstPad * pad, GstEvent * event)
2366 gboolean res = TRUE;
2367 GstQueue2 *queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2369 #ifndef GST_DISABLE_GST_DEBUG
2370 GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "got event %p (%s)",
2371 event, GST_EVENT_TYPE_NAME (event));
2374 switch (GST_EVENT_TYPE (event)) {
2375 case GST_EVENT_FLUSH_START:
2376 if (QUEUE_IS_USING_QUEUE (queue)) {
2377 /* just forward upstream */
2378 res = gst_pad_push_event (queue->sinkpad, event);
2380 /* now unblock the getrange function */
2381 GST_QUEUE2_MUTEX_LOCK (queue);
2382 GST_DEBUG_OBJECT (queue, "flushing");
2383 queue->srcresult = GST_FLOW_WRONG_STATE;
2384 GST_QUEUE2_SIGNAL_ADD (queue);
2385 GST_QUEUE2_MUTEX_UNLOCK (queue);
2387 /* when using a temp file, we eat the event */
2389 gst_event_unref (event);
2392 case GST_EVENT_FLUSH_STOP:
2393 if (QUEUE_IS_USING_QUEUE (queue)) {
2394 /* just forward upstream */
2395 res = gst_pad_push_event (queue->sinkpad, event);
2397 /* now unblock the getrange function */
2398 GST_QUEUE2_MUTEX_LOCK (queue);
2399 queue->srcresult = GST_FLOW_OK;
2400 if (queue->current) {
2401 /* forget the highest read offset, we'll calculate a new one when we
2402 * get the next getrange request. We need to do this in order to reset
2403 * the buffering percentage */
2404 queue->current->max_reading_pos = 0;
2406 GST_QUEUE2_MUTEX_UNLOCK (queue);
2408 /* when using a temp file, we eat the event */
2410 gst_event_unref (event);
2414 res = gst_pad_push_event (queue->sinkpad, event);
2422 gst_queue2_peer_query (GstQueue2 * queue, GstPad * pad, GstQuery * query)
2424 gboolean ret = FALSE;
2427 if ((peer = gst_pad_get_peer (pad))) {
2428 ret = gst_pad_query (peer, query);
2429 gst_object_unref (peer);
2435 gst_queue2_handle_src_query (GstPad * pad, GstQuery * query)
2439 queue = GST_QUEUE2 (GST_PAD_PARENT (pad));
2441 switch (GST_QUERY_TYPE (query)) {
2442 case GST_QUERY_POSITION:
2447 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2450 /* get peer position */
2451 gst_query_parse_position (query, &format, &peer_pos);
2453 /* FIXME: this code assumes that there's no discont in the queue */
2455 case GST_FORMAT_BYTES:
2456 peer_pos -= queue->cur_level.bytes;
2458 case GST_FORMAT_TIME:
2459 peer_pos -= queue->cur_level.time;
2462 GST_WARNING_OBJECT (queue, "dropping query in %s format, don't "
2463 "know how to adjust value", gst_format_get_name (format));
2466 /* set updated position */
2467 gst_query_set_position (query, format, peer_pos);
2470 case GST_QUERY_DURATION:
2472 GST_DEBUG_OBJECT (queue, "doing peer query");
2474 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2477 GST_DEBUG_OBJECT (queue, "peer query success");
2480 case GST_QUERY_BUFFERING:
2484 GST_DEBUG_OBJECT (queue, "query buffering");
2486 /* FIXME - is this condition correct? what should ring buffer do? */
2487 if (QUEUE_IS_USING_QUEUE (queue)) {
2488 /* no temp file, just forward to the peer */
2489 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2491 GST_DEBUG_OBJECT (queue, "buffering forwarded to peer");
2493 gint64 start, stop, range_start, range_stop;
2494 guint64 writing_pos;
2496 gint64 estimated_total, buffering_left;
2499 gboolean peer_res, is_buffering, is_eos;
2500 gdouble byte_in_rate, byte_out_rate;
2501 GstQueue2Range *queued_ranges;
2503 /* we need a current download region */
2504 if (queue->current == NULL)
2507 writing_pos = queue->current->writing_pos;
2508 byte_in_rate = queue->byte_in_rate;
2509 byte_out_rate = queue->byte_out_rate;
2510 is_buffering = queue->is_buffering;
2511 is_eos = queue->is_eos;
2512 percent = queue->buffering_percent;
2515 /* we're EOS, we know the duration in bytes now */
2517 duration = writing_pos;
2519 /* get duration of upstream in bytes */
2520 peer_fmt = GST_FORMAT_BYTES;
2521 peer_res = gst_pad_query_peer_duration (queue->sinkpad, &peer_fmt,
2525 /* calculate remaining and total download time */
2526 if (peer_res && byte_in_rate > 0.0) {
2527 estimated_total = (duration * 1000) / byte_in_rate;
2528 buffering_left = ((duration - writing_pos) * 1000) / byte_in_rate;
2530 estimated_total = -1;
2531 buffering_left = -1;
2533 GST_DEBUG_OBJECT (queue, "estimated %" G_GINT64_FORMAT ", left %"
2534 G_GINT64_FORMAT, estimated_total, buffering_left);
2536 gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
2539 case GST_FORMAT_PERCENT:
2540 /* we need duration */
2544 GST_DEBUG_OBJECT (queue,
2545 "duration %" G_GINT64_FORMAT ", writing %" G_GINT64_FORMAT,
2546 duration, writing_pos);
2549 /* get our available data relative to the duration */
2551 stop = GST_FORMAT_PERCENT_MAX * writing_pos / duration;
2555 case GST_FORMAT_BYTES:
2565 /* fill out the buffered ranges */
2566 for (queued_ranges = queue->ranges; queued_ranges;
2567 queued_ranges = queued_ranges->next) {
2569 case GST_FORMAT_PERCENT:
2570 if (duration == -1) {
2575 range_start = 100 * queued_ranges->offset / duration;
2576 range_stop = 100 * queued_ranges->writing_pos / duration;
2578 case GST_FORMAT_BYTES:
2579 range_start = queued_ranges->offset;
2580 range_stop = queued_ranges->writing_pos;
2587 if (range_start == range_stop)
2589 GST_DEBUG_OBJECT (queue,
2590 "range starting at %" G_GINT64_FORMAT " and finishing at %"
2591 G_GINT64_FORMAT, range_start, range_stop);
2592 gst_query_add_buffering_range (query, range_start, range_stop);
2595 gst_query_set_buffering_percent (query, is_buffering, percent);
2596 gst_query_set_buffering_range (query, format, start, stop,
2598 gst_query_set_buffering_stats (query, GST_BUFFERING_DOWNLOAD,
2599 byte_in_rate, byte_out_rate, buffering_left);
2604 /* peer handled other queries */
2605 if (!gst_queue2_peer_query (queue, queue->sinkpad, query))
2615 GST_DEBUG_OBJECT (queue, "failed peer query");
2621 gst_queue2_handle_query (GstElement * element, GstQuery * query)
2623 /* simply forward to the srcpad query function */
2624 return gst_queue2_handle_src_query (GST_QUEUE2_CAST (element)->srcpad, query);
2628 gst_queue2_update_upstream_size (GstQueue2 * queue)
2630 GstFormat fmt = GST_FORMAT_BYTES;
2631 gint64 upstream_size = -1;
2633 if (gst_pad_query_peer_duration (queue->sinkpad, &fmt, &upstream_size)) {
2634 GST_INFO_OBJECT (queue, "upstream size: %" G_GINT64_FORMAT, upstream_size);
2635 queue->upstream_size = upstream_size;
2639 static GstFlowReturn
2640 gst_queue2_get_range (GstPad * pad, guint64 offset, guint length,
2641 GstBuffer ** buffer)
2646 queue = GST_QUEUE2_CAST (gst_pad_get_parent (pad));
2648 length = (length == -1) ? DEFAULT_BUFFER_SIZE : length;
2649 GST_QUEUE2_MUTEX_LOCK_CHECK (queue, queue->srcresult, out_flushing);
2650 offset = (offset == -1) ? queue->current->reading_pos : offset;
2652 GST_DEBUG_OBJECT (queue,
2653 "Getting range: offset %" G_GUINT64_FORMAT ", length %u", offset, length);
2655 /* catch any reads beyond the size of the file here to make sure queue2
2656 * doesn't send seek events beyond the size of the file upstream, since
2657 * that would confuse elements such as souphttpsrc and/or http servers.
2658 * Demuxers often just loop until EOS at the end of the file to figure out
2659 * when they've read all the end-headers or index chunks. */
2660 if (G_UNLIKELY (offset >= queue->upstream_size)) {
2661 gst_queue2_update_upstream_size (queue);
2662 if (queue->upstream_size > 0 && offset >= queue->upstream_size)
2663 goto out_unexpected;
2666 if (G_UNLIKELY (offset + length > queue->upstream_size)) {
2667 gst_queue2_update_upstream_size (queue);
2668 if (queue->upstream_size > 0 && offset + length >= queue->upstream_size) {
2669 length = queue->upstream_size - offset;
2670 GST_DEBUG_OBJECT (queue, "adjusting length downto %d", length);
2674 /* FIXME - function will block when the range is not yet available */
2675 ret = gst_queue2_create_read (queue, offset, length, buffer);
2676 GST_QUEUE2_MUTEX_UNLOCK (queue);
2678 gst_object_unref (queue);
2685 ret = queue->srcresult;
2687 GST_DEBUG_OBJECT (queue, "we are flushing");
2688 GST_QUEUE2_MUTEX_UNLOCK (queue);
2689 gst_object_unref (queue);
2694 GST_DEBUG_OBJECT (queue, "read beyond end of file");
2695 GST_QUEUE2_MUTEX_UNLOCK (queue);
2696 gst_object_unref (queue);
2697 return GST_FLOW_UNEXPECTED;
2702 gst_queue2_src_checkgetrange_function (GstPad * pad)
2707 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2709 /* we can operate in pull mode when we are using a tempfile */
2710 ret = !QUEUE_IS_USING_QUEUE (queue);
2712 gst_object_unref (GST_OBJECT (queue));
2717 /* sink currently only operates in push mode */
2719 gst_queue2_sink_activate_push (GstPad * pad, gboolean active)
2721 gboolean result = TRUE;
2724 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2727 GST_QUEUE2_MUTEX_LOCK (queue);
2728 GST_DEBUG_OBJECT (queue, "activating push mode");
2729 queue->srcresult = GST_FLOW_OK;
2730 queue->sinkresult = GST_FLOW_OK;
2731 queue->is_eos = FALSE;
2732 queue->unexpected = FALSE;
2733 reset_rate_timer (queue);
2734 GST_QUEUE2_MUTEX_UNLOCK (queue);
2736 /* unblock chain function */
2737 GST_QUEUE2_MUTEX_LOCK (queue);
2738 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2739 queue->srcresult = GST_FLOW_WRONG_STATE;
2740 queue->sinkresult = GST_FLOW_WRONG_STATE;
2741 gst_queue2_locked_flush (queue);
2742 GST_QUEUE2_MUTEX_UNLOCK (queue);
2745 gst_object_unref (queue);
2750 /* src operating in push mode, we start a task on the source pad that pushes out
2751 * buffers from the queue */
2753 gst_queue2_src_activate_push (GstPad * pad, gboolean active)
2755 gboolean result = FALSE;
2758 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2761 GST_QUEUE2_MUTEX_LOCK (queue);
2762 GST_DEBUG_OBJECT (queue, "activating push mode");
2763 queue->srcresult = GST_FLOW_OK;
2764 queue->sinkresult = GST_FLOW_OK;
2765 queue->is_eos = FALSE;
2766 queue->unexpected = FALSE;
2767 result = gst_pad_start_task (pad, (GstTaskFunction) gst_queue2_loop, pad);
2768 GST_QUEUE2_MUTEX_UNLOCK (queue);
2770 /* unblock loop function */
2771 GST_QUEUE2_MUTEX_LOCK (queue);
2772 GST_DEBUG_OBJECT (queue, "deactivating push mode");
2773 queue->srcresult = GST_FLOW_WRONG_STATE;
2774 queue->sinkresult = GST_FLOW_WRONG_STATE;
2775 /* the item add signal will unblock */
2776 GST_QUEUE2_SIGNAL_ADD (queue);
2777 GST_QUEUE2_MUTEX_UNLOCK (queue);
2779 /* step 2, make sure streaming finishes */
2780 result = gst_pad_stop_task (pad);
2783 gst_object_unref (queue);
2788 /* pull mode, downstream will call our getrange function */
2790 gst_queue2_src_activate_pull (GstPad * pad, gboolean active)
2795 queue = GST_QUEUE2 (gst_pad_get_parent (pad));
2798 GST_QUEUE2_MUTEX_LOCK (queue);
2799 if (!QUEUE_IS_USING_QUEUE (queue)) {
2800 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2801 /* open the temp file now */
2802 result = gst_queue2_open_temp_location_file (queue);
2803 } else if (!queue->ring_buffer) {
2804 queue->ring_buffer = g_malloc (queue->ring_buffer_max_size);
2805 result = ! !queue->ring_buffer;
2810 GST_DEBUG_OBJECT (queue, "activating pull mode");
2811 init_ranges (queue);
2812 queue->srcresult = GST_FLOW_OK;
2813 queue->sinkresult = GST_FLOW_OK;
2814 queue->is_eos = FALSE;
2815 queue->unexpected = FALSE;
2816 queue->upstream_size = 0;
2817 GST_QUEUE2_MUTEX_UNLOCK (queue);
2819 GST_QUEUE2_MUTEX_LOCK (queue);
2820 GST_DEBUG_OBJECT (queue, "no temp file, cannot activate pull mode");
2821 /* this is not allowed, we cannot operate in pull mode without a temp
2823 queue->srcresult = GST_FLOW_WRONG_STATE;
2824 queue->sinkresult = GST_FLOW_WRONG_STATE;
2826 GST_QUEUE2_MUTEX_UNLOCK (queue);
2829 GST_QUEUE2_MUTEX_LOCK (queue);
2830 GST_DEBUG_OBJECT (queue, "deactivating pull mode");
2831 queue->srcresult = GST_FLOW_WRONG_STATE;
2832 queue->sinkresult = GST_FLOW_WRONG_STATE;
2833 /* this will unlock getrange */
2834 GST_QUEUE2_SIGNAL_ADD (queue);
2836 GST_QUEUE2_MUTEX_UNLOCK (queue);
2838 gst_object_unref (queue);
2843 static GstStateChangeReturn
2844 gst_queue2_change_state (GstElement * element, GstStateChange transition)
2847 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
2849 queue = GST_QUEUE2 (element);
2851 switch (transition) {
2852 case GST_STATE_CHANGE_NULL_TO_READY:
2854 case GST_STATE_CHANGE_READY_TO_PAUSED:
2855 GST_QUEUE2_MUTEX_LOCK (queue);
2856 if (!QUEUE_IS_USING_QUEUE (queue)) {
2857 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2858 if (!gst_queue2_open_temp_location_file (queue))
2859 ret = GST_STATE_CHANGE_FAILURE;
2861 if (queue->ring_buffer) {
2862 g_free (queue->ring_buffer);
2863 queue->ring_buffer = NULL;
2865 if (!(queue->ring_buffer = g_malloc (queue->ring_buffer_max_size)))
2866 ret = GST_STATE_CHANGE_FAILURE;
2868 init_ranges (queue);
2870 queue->segment_event_received = FALSE;
2871 queue->starting_segment = NULL;
2872 GST_QUEUE2_MUTEX_UNLOCK (queue);
2874 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2880 if (ret == GST_STATE_CHANGE_FAILURE)
2883 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2885 if (ret == GST_STATE_CHANGE_FAILURE)
2888 switch (transition) {
2889 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2891 case GST_STATE_CHANGE_PAUSED_TO_READY:
2892 GST_QUEUE2_MUTEX_LOCK (queue);
2893 if (!QUEUE_IS_USING_QUEUE (queue)) {
2894 if (QUEUE_IS_USING_TEMP_FILE (queue)) {
2895 gst_queue2_close_temp_location_file (queue);
2896 } else if (queue->ring_buffer) {
2897 g_free (queue->ring_buffer);
2898 queue->ring_buffer = NULL;
2900 clean_ranges (queue);
2902 if (queue->starting_segment != NULL) {
2903 gst_event_unref (queue->starting_segment);
2904 queue->starting_segment = NULL;
2906 GST_QUEUE2_MUTEX_UNLOCK (queue);
2908 case GST_STATE_CHANGE_READY_TO_NULL:
2917 /* changing the capacity of the queue must wake up
2918 * the _chain function, it might have more room now
2919 * to store the buffer/event in the queue */
2920 #define QUEUE_CAPACITY_CHANGE(q)\
2921 GST_QUEUE2_SIGNAL_DEL (queue);
2923 /* Changing the minimum required fill level must
2924 * wake up the _loop function as it might now
2925 * be able to preceed.
2927 #define QUEUE_THRESHOLD_CHANGE(q)\
2928 GST_QUEUE2_SIGNAL_ADD (queue);
2931 gst_queue2_set_temp_template (GstQueue2 * queue, const gchar * template)
2935 /* the element must be stopped in order to do this */
2936 GST_OBJECT_LOCK (queue);
2937 state = GST_STATE (queue);
2938 if (state != GST_STATE_READY && state != GST_STATE_NULL)
2940 GST_OBJECT_UNLOCK (queue);
2942 /* set new location */
2943 g_free (queue->temp_template);
2944 queue->temp_template = g_strdup (template);
2951 GST_WARNING_OBJECT (queue, "setting temp-template property in wrong state");
2952 GST_OBJECT_UNLOCK (queue);
2957 gst_queue2_set_property (GObject * object,
2958 guint prop_id, const GValue * value, GParamSpec * pspec)
2960 GstQueue2 *queue = GST_QUEUE2 (object);
2962 /* someone could change levels here, and since this
2963 * affects the get/put funcs, we need to lock for safety. */
2964 GST_QUEUE2_MUTEX_LOCK (queue);
2967 case PROP_MAX_SIZE_BYTES:
2968 queue->max_level.bytes = g_value_get_uint (value);
2969 QUEUE_CAPACITY_CHANGE (queue);
2971 case PROP_MAX_SIZE_BUFFERS:
2972 queue->max_level.buffers = g_value_get_uint (value);
2973 QUEUE_CAPACITY_CHANGE (queue);
2975 case PROP_MAX_SIZE_TIME:
2976 queue->max_level.time = g_value_get_uint64 (value);
2977 /* set rate_time to the same value. We use an extra field in the level
2978 * structure so that we can easily access and compare it */
2979 queue->max_level.rate_time = queue->max_level.time;
2980 QUEUE_CAPACITY_CHANGE (queue);
2982 case PROP_USE_BUFFERING:
2983 queue->use_buffering = g_value_get_boolean (value);
2985 case PROP_USE_RATE_ESTIMATE:
2986 queue->use_rate_estimate = g_value_get_boolean (value);
2988 case PROP_LOW_PERCENT:
2989 queue->low_percent = g_value_get_int (value);
2991 case PROP_HIGH_PERCENT:
2992 queue->high_percent = g_value_get_int (value);
2994 case PROP_TEMP_TEMPLATE:
2995 gst_queue2_set_temp_template (queue, g_value_get_string (value));
2997 case PROP_TEMP_LOCATION:
2998 g_free (queue->temp_location);
2999 queue->temp_location = g_value_dup_string (value);
3000 /* you can set the property back to NULL to make it use the temp-tmpl
3002 queue->temp_location_set = queue->temp_location != NULL;
3004 case PROP_TEMP_REMOVE:
3005 queue->temp_remove = g_value_get_boolean (value);
3007 case PROP_RING_BUFFER_MAX_SIZE:
3008 queue->ring_buffer_max_size = g_value_get_uint64 (value);
3011 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3015 GST_QUEUE2_MUTEX_UNLOCK (queue);
3019 gst_queue2_get_property (GObject * object,
3020 guint prop_id, GValue * value, GParamSpec * pspec)
3022 GstQueue2 *queue = GST_QUEUE2 (object);
3024 GST_QUEUE2_MUTEX_LOCK (queue);
3027 case PROP_CUR_LEVEL_BYTES:
3028 g_value_set_uint (value, queue->cur_level.bytes);
3030 case PROP_CUR_LEVEL_BUFFERS:
3031 g_value_set_uint (value, queue->cur_level.buffers);
3033 case PROP_CUR_LEVEL_TIME:
3034 g_value_set_uint64 (value, queue->cur_level.time);
3036 case PROP_MAX_SIZE_BYTES:
3037 g_value_set_uint (value, queue->max_level.bytes);
3039 case PROP_MAX_SIZE_BUFFERS:
3040 g_value_set_uint (value, queue->max_level.buffers);
3042 case PROP_MAX_SIZE_TIME:
3043 g_value_set_uint64 (value, queue->max_level.time);
3045 case PROP_USE_BUFFERING:
3046 g_value_set_boolean (value, queue->use_buffering);
3048 case PROP_USE_RATE_ESTIMATE:
3049 g_value_set_boolean (value, queue->use_rate_estimate);
3051 case PROP_LOW_PERCENT:
3052 g_value_set_int (value, queue->low_percent);
3054 case PROP_HIGH_PERCENT:
3055 g_value_set_int (value, queue->high_percent);
3057 case PROP_TEMP_TEMPLATE:
3058 g_value_set_string (value, queue->temp_template);
3060 case PROP_TEMP_LOCATION:
3061 g_value_set_string (value, queue->temp_location);
3063 case PROP_TEMP_REMOVE:
3064 g_value_set_boolean (value, queue->temp_remove);
3066 case PROP_RING_BUFFER_MAX_SIZE:
3067 g_value_set_uint64 (value, queue->ring_buffer_max_size);
3070 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3074 GST_QUEUE2_MUTEX_UNLOCK (queue);