2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
4 * Copyright (C) 2006 Wim Taymans <wim at fluendo dot com>
5 * Copyright (C) <2011> Collabora Ltd.
6 * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
25 * SECTION:element-multihandlesink
26 * @see_also: tcpserversink
28 * This plugin writes incoming data to a set of file descriptors. The
29 * file descriptors can be added to multihandlesink by emitting the #GstMultiHandleSink::add signal.
30 * For each descriptor added, the #GstMultiHandleSink::client-added signal will be called.
32 * As of version 0.10.8, a client can also be added with the #GstMultiHandleSink::add-full signal
33 * that allows for more control over what and how much data a client
36 * Clients can be removed from multihandlesink by emitting the #GstMultiHandleSink::remove signal. For
37 * each descriptor removed, the #GstMultiHandleSink::client-removed signal will be called. The
38 * #GstMultiHandleSink::client-removed signal can also be fired when multihandlesink decides that a
39 * client is not active anymore or, depending on the value of the
40 * #GstMultiHandleSink:recover-policy property, if the client is reading too slowly.
41 * In all cases, multihandlesink will never close a file descriptor itself.
42 * The user of multihandlesink is responsible for closing all file descriptors.
43 * This can for example be done in response to the #GstMultiHandleSink::client-fd-removed signal.
44 * Note that multihandlesink still has a reference to the file descriptor when the
45 * #GstMultiHandleSink::client-removed signal is emitted, so that "get-stats" can be performed on
46 * the descriptor; it is therefore not safe to close the file descriptor in
47 * the #GstMultiHandleSink::client-removed signal handler, and you should use the
48 * #GstMultiHandleSink::client-fd-removed signal to safely close the fd.
50 * Multisocketsink internally keeps a queue of the incoming buffers and uses a
51 * separate thread to send the buffers to the clients. This ensures that no
52 * client write can block the pipeline and that clients can read with different
55 * When adding a client to multihandlesink, the #GstMultiHandleSink:sync-method property will define
56 * which buffer in the queued buffers will be sent first to the client. Clients
57 * can be sent the most recent buffer (which might not be decodable by the
58 * client if it is not a keyframe), the next keyframe received in
59 * multihandlesink (which can take some time depending on the keyframe rate), or the
60 * last received keyframe (which will cause a simple burst-on-connect).
61 * Multisocketsink will always keep at least one keyframe in its internal buffers
62 * when the sync-mode is set to latest-keyframe.
64 * As of version 0.10.8, there are additional values for the #GstMultiHandleSink:sync-method
65 * property to allow finer control over burst-on-connect behaviour. By selecting
66 * the 'burst' method a minimum burst size can be chosen, 'burst-keyframe'
67 * additionally requires that the burst begin with a keyframe, and
68 * 'burst-with-keyframe' attempts to burst beginning with a keyframe, but will
69 * prefer a minimum burst size even if it requires not starting with a keyframe.
71 * Multisocketsink can be instructed to keep at least a minimum amount of data
72 * expressed in time or byte units in its internal queues with the
73 * #GstMultiHandleSink:time-min and #GstMultiHandleSink:bytes-min properties respectively.
74 * These properties are useful if the application adds clients with the
75 * #GstMultiHandleSink::add-full signal to make sure that a burst connect can
76 * actually be honored.
78 * When streaming data, clients are allowed to read at a different rate than
79 * the rate at which multihandlesink receives data. If the client is reading too
80 * fast, no data will be send to the client until multihandlesink receives more
81 * data. If the client, however, reads too slowly, data for that client will be
82 * queued up in multihandlesink. Two properties control the amount of data
83 * (buffers) that is queued in multihandlesink: #GstMultiHandleSink:buffers-max and
84 * #GstMultiHandleSink:buffers-soft-max. A client that falls behind by
85 * #GstMultiHandleSink:buffers-max is removed from multihandlesink forcibly.
87 * A client with a lag of at least #GstMultiHandleSink:buffers-soft-max enters the recovery
88 * procedure which is controlled with the #GstMultiHandleSink:recover-policy property.
89 * A recover policy of NONE will do nothing, RESYNC_LATEST will send the most recently
90 * received buffer as the next buffer for the client, RESYNC_SOFT_LIMIT
91 * positions the client to the soft limit in the buffer queue and
92 * RESYNC_KEYFRAME positions the client at the most recent keyframe in the
95 * multihandlesink will by default synchronize on the clock before serving the
96 * buffers to the clients. This behaviour can be disabled by setting the sync
97 * property to FALSE. Multisocketsink will by default not do QoS and will never
100 * Last reviewed on 2006-09-12 (0.10.10)
107 #include <gst/gst-i18n-plugin.h>
109 #include "gstmultihandlesink.h"
110 #include "gsttcp-marshal.h"
112 #ifdef HAVE_SYS_SOCKET_H
113 #include <sys/socket.h>
117 #include <netinet/in.h>
120 #define NOT_IMPLEMENTED 0
122 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
125 GST_STATIC_CAPS_ANY);
127 GST_DEBUG_CATEGORY_STATIC (multihandlesink_debug);
128 #define GST_CAT_DEFAULT (multihandlesink_debug)
130 /* MultiHandleSink signals and args */
133 GST_MULTI_SINK_LAST_SIGNAL,
142 SIGNAL_CLIENT_REMOVED,
143 SIGNAL_CLIENT_SOCKET_REMOVED,
149 /* this is really arbitrarily chosen */
150 #define DEFAULT_BUFFERS_MAX -1
151 #define DEFAULT_BUFFERS_SOFT_MAX -1
152 #define DEFAULT_TIME_MIN -1
153 #define DEFAULT_BYTES_MIN -1
154 #define DEFAULT_BUFFERS_MIN -1
155 #define DEFAULT_UNIT_FORMAT GST_FORMAT_BUFFERS
156 #define DEFAULT_UNITS_MAX -1
157 #define DEFAULT_UNITS_SOFT_MAX -1
158 #define DEFAULT_RECOVER_POLICY GST_RECOVER_POLICY_NONE
159 #define DEFAULT_TIMEOUT 0
160 #define DEFAULT_SYNC_METHOD GST_SYNC_METHOD_LATEST
162 #define DEFAULT_BURST_FORMAT GST_FORMAT_UNDEFINED
163 #define DEFAULT_BURST_VALUE 0
165 #define DEFAULT_QOS_DSCP -1
167 #define DEFAULT_RESEND_STREAMHEADER TRUE
181 PROP_BUFFERS_SOFT_MAX,
198 PROP_RESEND_STREAMHEADER,
206 gst_multi_handle_sink_recover_policy_get_type (void)
208 static GType recover_policy_type = 0;
209 static const GEnumValue recover_policy[] = {
210 {GST_RECOVER_POLICY_NONE,
211 "Do not try to recover", "none"},
212 {GST_RECOVER_POLICY_RESYNC_LATEST,
213 "Resync client to latest buffer", "latest"},
214 {GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT,
215 "Resync client to soft limit", "soft-limit"},
216 {GST_RECOVER_POLICY_RESYNC_KEYFRAME,
217 "Resync client to most recent keyframe", "keyframe"},
221 if (!recover_policy_type) {
222 recover_policy_type =
223 g_enum_register_static ("GstMultiHandleSinkRecoverPolicy",
226 return recover_policy_type;
230 gst_multi_handle_sink_sync_method_get_type (void)
232 static GType sync_method_type = 0;
233 static const GEnumValue sync_method[] = {
234 {GST_SYNC_METHOD_LATEST,
235 "Serve starting from the latest buffer", "latest"},
236 {GST_SYNC_METHOD_NEXT_KEYFRAME,
237 "Serve starting from the next keyframe", "next-keyframe"},
238 {GST_SYNC_METHOD_LATEST_KEYFRAME,
239 "Serve everything since the latest keyframe (burst)",
241 {GST_SYNC_METHOD_BURST, "Serve burst-value data to client", "burst"},
242 {GST_SYNC_METHOD_BURST_KEYFRAME,
243 "Serve burst-value data starting on a keyframe",
245 {GST_SYNC_METHOD_BURST_WITH_KEYFRAME,
246 "Serve burst-value data preferably starting on a keyframe",
247 "burst-with-keyframe"},
251 if (!sync_method_type) {
253 g_enum_register_static ("GstMultiHandleSinkSyncMethod", sync_method);
255 return sync_method_type;
259 gst_multi_handle_sink_client_status_get_type (void)
261 static GType client_status_type = 0;
262 static const GEnumValue client_status[] = {
263 {GST_CLIENT_STATUS_OK, "ok", "ok"},
264 {GST_CLIENT_STATUS_CLOSED, "Closed", "closed"},
265 {GST_CLIENT_STATUS_REMOVED, "Removed", "removed"},
266 {GST_CLIENT_STATUS_SLOW, "Too slow", "slow"},
267 {GST_CLIENT_STATUS_ERROR, "Error", "error"},
268 {GST_CLIENT_STATUS_DUPLICATE, "Duplicate", "duplicate"},
269 {GST_CLIENT_STATUS_FLUSHING, "Flushing", "flushing"},
273 if (!client_status_type) {
275 g_enum_register_static ("GstMultiHandleSinkClientStatus",
278 return client_status_type;
281 static void gst_multi_handle_sink_finalize (GObject * object);
282 static void gst_multi_handle_sink_clear (GstMultiHandleSink * mhsink);
284 static GstFlowReturn gst_multi_handle_sink_render (GstBaseSink * bsink,
286 static void gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
288 static gboolean gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink *
289 mhsink, GstMultiHandleClient * mhclient, GstBuffer * buffer);
290 static GstStateChangeReturn gst_multi_handle_sink_change_state (GstElement *
291 element, GstStateChange transition);
293 static void gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
294 const GValue * value, GParamSpec * pspec);
295 static void gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
296 GValue * value, GParamSpec * pspec);
298 #define gst_multi_handle_sink_parent_class parent_class
299 G_DEFINE_TYPE (GstMultiHandleSink, gst_multi_handle_sink, GST_TYPE_BASE_SINK);
301 static guint gst_multi_handle_sink_signals[LAST_SIGNAL] = { 0 };
304 find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction);
305 #define find_next_syncframe(s,i) find_syncframe(s,i,1)
306 #define find_prev_syncframe(s,i) find_syncframe(s,i,-1)
307 static gboolean is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer);
308 static gboolean gst_multi_handle_sink_stop (GstBaseSink * bsink);
309 static gboolean gst_multi_handle_sink_start (GstBaseSink * bsink);
310 static gint get_buffers_max (GstMultiHandleSink * sink, gint64 max);
312 gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
313 GstMultiHandleClient * client);
314 static void gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink);
316 find_limits (GstMultiHandleSink * sink,
317 gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
318 gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max);
322 gst_multi_handle_sink_class_init (GstMultiHandleSinkClass * klass)
324 GObjectClass *gobject_class;
325 GstElementClass *gstelement_class;
326 GstBaseSinkClass *gstbasesink_class;
328 gobject_class = (GObjectClass *) klass;
329 gstelement_class = (GstElementClass *) klass;
330 gstbasesink_class = (GstBaseSinkClass *) klass;
332 gobject_class->set_property = gst_multi_handle_sink_set_property;
333 gobject_class->get_property = gst_multi_handle_sink_get_property;
334 gobject_class->finalize = gst_multi_handle_sink_finalize;
336 g_object_class_install_property (gobject_class, PROP_BUFFERS_MAX,
337 g_param_spec_int ("buffers-max", "Buffers max",
338 "max number of buffers to queue for a client (-1 = no limit)", -1,
339 G_MAXINT, DEFAULT_BUFFERS_MAX,
340 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
341 g_object_class_install_property (gobject_class, PROP_BUFFERS_SOFT_MAX,
342 g_param_spec_int ("buffers-soft-max", "Buffers soft max",
343 "Recover client when going over this limit (-1 = no limit)", -1,
344 G_MAXINT, DEFAULT_BUFFERS_SOFT_MAX,
345 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
347 g_object_class_install_property (gobject_class, PROP_BYTES_MIN,
348 g_param_spec_int ("bytes-min", "Bytes min",
349 "min number of bytes to queue (-1 = as little as possible)", -1,
350 G_MAXINT, DEFAULT_BYTES_MIN,
351 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
352 g_object_class_install_property (gobject_class, PROP_TIME_MIN,
353 g_param_spec_int64 ("time-min", "Time min",
354 "min number of time to queue (-1 = as little as possible)", -1,
355 G_MAXINT64, DEFAULT_TIME_MIN,
356 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
357 g_object_class_install_property (gobject_class, PROP_BUFFERS_MIN,
358 g_param_spec_int ("buffers-min", "Buffers min",
359 "min number of buffers to queue (-1 = as few as possible)", -1,
360 G_MAXINT, DEFAULT_BUFFERS_MIN,
361 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
363 g_object_class_install_property (gobject_class, PROP_UNIT_FORMAT,
364 g_param_spec_enum ("unit-format", "Units format",
365 "The unit to measure the max/soft-max/queued properties",
366 GST_TYPE_FORMAT, DEFAULT_UNIT_FORMAT,
367 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
368 g_object_class_install_property (gobject_class, PROP_UNITS_MAX,
369 g_param_spec_int64 ("units-max", "Units max",
370 "max number of units to queue (-1 = no limit)", -1, G_MAXINT64,
371 DEFAULT_UNITS_MAX, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
372 g_object_class_install_property (gobject_class, PROP_UNITS_SOFT_MAX,
373 g_param_spec_int64 ("units-soft-max", "Units soft max",
374 "Recover client when going over this limit (-1 = no limit)", -1,
375 G_MAXINT64, DEFAULT_UNITS_SOFT_MAX,
376 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
378 g_object_class_install_property (gobject_class, PROP_BUFFERS_QUEUED,
379 g_param_spec_uint ("buffers-queued", "Buffers queued",
380 "Number of buffers currently queued", 0, G_MAXUINT, 0,
381 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
383 g_object_class_install_property (gobject_class, PROP_BYTES_QUEUED,
384 g_param_spec_uint ("bytes-queued", "Bytes queued",
385 "Number of bytes currently queued", 0, G_MAXUINT, 0,
386 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
387 g_object_class_install_property (gobject_class, PROP_TIME_QUEUED,
388 g_param_spec_uint64 ("time-queued", "Time queued",
389 "Number of time currently queued", 0, G_MAXUINT64, 0,
390 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
393 g_object_class_install_property (gobject_class, PROP_RECOVER_POLICY,
394 g_param_spec_enum ("recover-policy", "Recover Policy",
395 "How to recover when client reaches the soft max",
396 GST_TYPE_RECOVER_POLICY, DEFAULT_RECOVER_POLICY,
397 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
398 g_object_class_install_property (gobject_class, PROP_TIMEOUT,
399 g_param_spec_uint64 ("timeout", "Timeout",
400 "Maximum inactivity timeout in nanoseconds for a client (0 = no limit)",
401 0, G_MAXUINT64, DEFAULT_TIMEOUT,
402 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
403 g_object_class_install_property (gobject_class, PROP_SYNC_METHOD,
404 g_param_spec_enum ("sync-method", "Sync Method",
405 "How to sync new clients to the stream", GST_TYPE_SYNC_METHOD,
406 DEFAULT_SYNC_METHOD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
407 g_object_class_install_property (gobject_class, PROP_BYTES_TO_SERVE,
408 g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
409 "Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
410 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
411 g_object_class_install_property (gobject_class, PROP_BYTES_SERVED,
412 g_param_spec_uint64 ("bytes-served", "Bytes served",
413 "Total number of bytes send to all clients", 0, G_MAXUINT64, 0,
414 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
416 g_object_class_install_property (gobject_class, PROP_BURST_FORMAT,
417 g_param_spec_enum ("burst-format", "Burst format",
418 "The format of the burst units (when sync-method is burst[[-with]-keyframe])",
419 GST_TYPE_FORMAT, DEFAULT_BURST_FORMAT,
420 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
421 g_object_class_install_property (gobject_class, PROP_BURST_VALUE,
422 g_param_spec_uint64 ("burst-value", "Burst value",
423 "The amount of burst expressed in burst-format", 0, G_MAXUINT64,
424 DEFAULT_BURST_VALUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
426 g_object_class_install_property (gobject_class, PROP_QOS_DSCP,
427 g_param_spec_int ("qos-dscp", "QoS diff srv code point",
428 "Quality of Service, differentiated services code point (-1 default)",
429 -1, 63, DEFAULT_QOS_DSCP,
430 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
433 * GstMultiHandleSink::resend-streamheader
435 * Resend the streamheaders to existing clients when they change.
439 g_object_class_install_property (gobject_class, PROP_RESEND_STREAMHEADER,
440 g_param_spec_boolean ("resend-streamheader", "Resend streamheader",
441 "Resend the streamheader if it changes in the caps",
442 DEFAULT_RESEND_STREAMHEADER,
443 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
445 g_object_class_install_property (gobject_class, PROP_NUM_HANDLES,
446 g_param_spec_uint ("num-handles", "Number of handles",
447 "The current number of client handles",
448 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
451 * GstMultiHandleSink::clear:
452 * @gstmultihandlesink: the multihandlesink element to emit this signal on
454 * Remove all sockets from multihandlesink. Since multihandlesink did not
455 * open sockets itself, it does not explicitly close the sockets. The application
456 * should do so by connecting to the client-socket-removed callback.
458 gst_multi_handle_sink_signals[SIGNAL_CLEAR] =
459 g_signal_new ("clear", G_TYPE_FROM_CLASS (klass),
460 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
461 G_STRUCT_OFFSET (GstMultiHandleSinkClass, clear), NULL, NULL,
462 g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
464 gst_element_class_add_pad_template (gstelement_class,
465 gst_static_pad_template_get (&sinktemplate));
467 gst_element_class_set_static_metadata (gstelement_class,
468 "Multi socket sink", "Sink/Network",
469 "Send data to multiple sockets",
470 "Thomas Vander Stichele <thomas at apestaart dot org>, "
471 "Wim Taymans <wim@fluendo.com>, "
472 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
474 gstelement_class->change_state =
475 GST_DEBUG_FUNCPTR (gst_multi_handle_sink_change_state);
477 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_render);
478 klass->client_queue_buffer =
479 GST_DEBUG_FUNCPTR (gst_multi_handle_sink_client_queue_buffer);
482 klass->add = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add);
483 klass->add_full = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add_full);
484 klass->remove = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove);
485 klass->remove_flush = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove_flush);
488 klass->clear = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_clear);
490 GST_DEBUG_CATEGORY_INIT (multihandlesink_debug, "multihandlesink", 0,
491 "Multi socket sink");
495 gst_multi_handle_sink_init (GstMultiHandleSink * this)
497 GST_OBJECT_FLAG_UNSET (this, GST_MULTI_HANDLE_SINK_OPEN);
499 CLIENTS_LOCK_INIT (this);
500 this->clients = NULL;
502 this->bufqueue = g_array_new (FALSE, TRUE, sizeof (GstBuffer *));
503 this->unit_format = DEFAULT_UNIT_FORMAT;
504 this->units_max = DEFAULT_UNITS_MAX;
505 this->units_soft_max = DEFAULT_UNITS_SOFT_MAX;
506 this->time_min = DEFAULT_TIME_MIN;
507 this->bytes_min = DEFAULT_BYTES_MIN;
508 this->buffers_min = DEFAULT_BUFFERS_MIN;
509 this->recover_policy = DEFAULT_RECOVER_POLICY;
511 this->timeout = DEFAULT_TIMEOUT;
512 this->def_sync_method = DEFAULT_SYNC_METHOD;
514 this->def_burst_format = DEFAULT_BURST_FORMAT;
515 this->def_burst_value = DEFAULT_BURST_VALUE;
517 this->qos_dscp = DEFAULT_QOS_DSCP;
519 this->resend_streamheader = DEFAULT_RESEND_STREAMHEADER;
523 gst_multi_handle_sink_finalize (GObject * object)
525 GstMultiHandleSink *this;
527 this = GST_MULTI_HANDLE_SINK (object);
529 CLIENTS_LOCK_CLEAR (this);
530 g_array_free (this->bufqueue, TRUE);
531 g_hash_table_destroy (this->handle_hash);
533 G_OBJECT_CLASS (parent_class)->finalize (object);
537 gst_multi_handle_sink_setup_dscp_client (GstMultiHandleSink * sink,
538 GstMultiHandleClient * client)
540 #if !defined(IP_TOS) || !defined(HAVE_SYS_SOCKET_H)
549 struct sockaddr_in6 sa_in6;
550 struct sockaddr_storage sa_stor;
552 socklen_t slen = sizeof (sa);
554 GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
557 if (sink->qos_dscp < 0)
560 fd = mhsinkclass->client_get_fd (client);
562 if ((ret = getsockname (fd, &sa.sa, &slen)) < 0) {
563 GST_DEBUG_OBJECT (sink, "could not get sockname: %s", g_strerror (errno));
567 af = sa.sa.sa_family;
569 /* if this is an IPv4-mapped address then do IPv4 QoS */
570 if (af == AF_INET6) {
572 GST_DEBUG_OBJECT (sink, "check IP6 socket");
573 if (IN6_IS_ADDR_V4MAPPED (&(sa.sa_in6.sin6_addr))) {
574 GST_DEBUG_OBJECT (sink, "mapped to IPV4");
579 /* extract and shift 6 bits of the DSCP */
580 tos = (sink->qos_dscp & 0x3f) << 2;
584 ret = setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos));
588 ret = setsockopt (fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof (tos));
593 GST_ERROR_OBJECT (sink, "unsupported AF");
597 GST_DEBUG_OBJECT (sink, "could not set DSCP: %s", g_strerror (errno));
604 gst_multi_handle_sink_client_init (GstMultiHandleClient * client,
605 GstSyncMethod sync_method)
609 client->status = GST_CLIENT_STATUS_OK;
611 client->flushcount = -1;
612 client->bufoffset = 0;
613 client->sending = NULL;
614 client->bytes_sent = 0;
615 client->dropped_buffers = 0;
616 client->avg_queue_size = 0;
617 client->first_buffer_ts = GST_CLOCK_TIME_NONE;
618 client->last_buffer_ts = GST_CLOCK_TIME_NONE;
619 client->new_connection = TRUE;
620 client->sync_method = sync_method;
621 client->currently_removing = FALSE;
623 /* update start time */
624 g_get_current_time (&now);
625 client->connect_time = GST_TIMEVAL_TO_TIME (now);
626 client->disconnect_time = 0;
627 /* set last activity time to connect time */
628 client->last_activity_time = client->connect_time;
632 gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink)
636 CLIENTS_LOCK (mhsink);
637 for (clients = mhsink->clients; clients; clients = clients->next) {
638 GstMultiHandleClient *client;
640 client = clients->data;
642 gst_multi_handle_sink_setup_dscp_client (mhsink, client);
644 CLIENTS_UNLOCK (mhsink);
648 gst_multi_handle_sink_add_full (GstMultiHandleSink * sink,
649 GstMultiSinkHandle handle, GstSyncMethod sync_method, GstFormat min_format,
650 guint64 min_value, GstFormat max_format, guint64 max_value)
652 GstMultiHandleClient *mhclient;
654 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
656 GstMultiHandleSinkClass *mhsinkclass =
657 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
659 if (!sink->running) {
660 g_warning ("Element %s must be set to READY, PAUSED or PLAYING state "
661 "before clients can be added", GST_OBJECT_NAME (sink));
665 mhsinkclass->handle_debug (handle, debug);
666 GST_DEBUG_OBJECT (sink, "%s adding client, sync_method %d, "
667 "min_format %d, min_value %" G_GUINT64_FORMAT
668 ", max_format %d, max_value %" G_GUINT64_FORMAT, debug,
669 sync_method, min_format, min_value, max_format, max_value);
671 /* do limits check if we can */
672 if (min_format == max_format) {
673 if (max_value != -1 && min_value != -1 && max_value < min_value)
679 /* check the hash to find a duplicate handle */
680 clink = g_hash_table_lookup (mhsink->handle_hash,
681 mhsinkclass->handle_hash_key (handle));
685 mhclient = mhsinkclass->new_client (mhsink, handle, sync_method);
687 /* we can add the handle now */
688 clink = mhsink->clients = g_list_prepend (mhsink->clients, mhclient);
689 g_hash_table_insert (mhsink->handle_hash,
690 mhsinkclass->handle_hash_key (mhclient->handle), clink);
691 mhsink->clients_cookie++;
694 mhclient->burst_min_format = min_format;
695 mhclient->burst_min_value = min_value;
696 mhclient->burst_max_format = max_format;
697 mhclient->burst_max_value = max_value;
699 if (mhsinkclass->hash_changed)
700 mhsinkclass->hash_changed (mhsink);
702 CLIENTS_UNLOCK (sink);
704 mhsinkclass->emit_client_added (mhsink, handle);
711 GST_WARNING_OBJECT (sink,
712 "%s wrong values min =%" G_GUINT64_FORMAT ", max=%"
713 G_GUINT64_FORMAT ", unit %d specified when adding client",
714 debug, min_value, max_value, min_format);
719 CLIENTS_UNLOCK (sink);
720 GST_WARNING_OBJECT (sink, "%s duplicate client found, refusing", debug);
721 mhsinkclass->emit_client_removed (mhsink, handle,
722 GST_CLIENT_STATUS_DUPLICATE);
727 /* "add" signal implementation */
729 gst_multi_handle_sink_add (GstMultiHandleSink * sink, GstMultiSinkHandle handle)
731 gst_multi_handle_sink_add_full (sink, handle, sink->def_sync_method,
732 sink->def_burst_format, sink->def_burst_value, sink->def_burst_format,
736 /* "remove" signal implementation */
738 gst_multi_handle_sink_remove (GstMultiHandleSink * sink,
739 GstMultiSinkHandle handle)
742 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
743 GstMultiHandleSinkClass *mhsinkclass =
744 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
747 mhsinkclass->handle_debug (handle, debug);
749 GST_DEBUG_OBJECT (sink, "%s removing client", debug);
752 clink = g_hash_table_lookup (mhsink->handle_hash,
753 mhsinkclass->handle_hash_key (handle));
755 GstMultiHandleClient *mhclient = (GstMultiHandleClient *) clink->data;
757 if (mhclient->status != GST_CLIENT_STATUS_OK) {
758 GST_INFO_OBJECT (sink,
759 "%s Client already disconnecting with status %d",
760 debug, mhclient->status);
764 mhclient->status = GST_CLIENT_STATUS_REMOVED;
765 gst_multi_handle_sink_remove_client_link (GST_MULTI_HANDLE_SINK (sink),
767 if (mhsinkclass->hash_changed)
768 mhsinkclass->hash_changed (mhsink);
770 GST_WARNING_OBJECT (sink, "%s no client with this handle found!", debug);
774 CLIENTS_UNLOCK (sink);
777 /* "remove-flush" signal implementation */
779 gst_multi_handle_sink_remove_flush (GstMultiHandleSink * sink,
780 GstMultiSinkHandle handle)
783 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
784 GstMultiHandleSinkClass *mhsinkclass =
785 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
788 mhsinkclass->handle_debug (handle, debug);
790 GST_DEBUG_OBJECT (sink, "%s flushing client", debug);
793 clink = g_hash_table_lookup (mhsink->handle_hash,
794 mhsinkclass->handle_hash_key (handle));
796 GstMultiHandleClient *mhclient = (GstMultiHandleClient *) clink->data;
798 if (mhclient->status != GST_CLIENT_STATUS_OK) {
799 GST_INFO_OBJECT (sink,
800 "%s Client already disconnecting with status %d",
801 mhclient->debug, mhclient->status);
805 /* take the position of the client as the number of buffers left to flush.
806 * If the client was at position -1, we flush 0 buffers, 0 == flush 1
808 mhclient->flushcount = mhclient->bufpos + 1;
809 /* mark client as flushing. We can not remove the client right away because
810 * it might have some buffers to flush in the ->sending queue. */
811 mhclient->status = GST_CLIENT_STATUS_FLUSHING;
813 GST_WARNING_OBJECT (sink, "%s no client with this handle found!", debug);
816 CLIENTS_UNLOCK (sink);
819 /* can be called both through the signal (i.e. from any thread) or when
820 * stopping, after the writing thread has shut down */
822 gst_multi_handle_sink_clear (GstMultiHandleSink * mhsink)
824 GList *clients, *next;
826 GstMultiHandleSinkClass *mhsinkclass =
827 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
829 GST_DEBUG_OBJECT (mhsink, "clearing all clients");
831 CLIENTS_LOCK (mhsink);
833 cookie = mhsink->clients_cookie;
834 for (clients = mhsink->clients; clients; clients = next) {
835 GstMultiHandleClient *mhclient;
837 if (cookie != mhsink->clients_cookie) {
838 GST_DEBUG_OBJECT (mhsink, "cookie changed while removing all clients");
842 mhclient = (GstMultiHandleClient *) clients->data;
843 next = g_list_next (clients);
845 mhclient->status = GST_CLIENT_STATUS_REMOVED;
846 /* the next call changes the list, which is why we iterate
847 * with a temporary next pointer */
848 gst_multi_handle_sink_remove_client_link (mhsink, clients);
850 if (mhsinkclass->hash_changed)
851 mhsinkclass->hash_changed (mhsink);
853 CLIENTS_UNLOCK (mhsink);
857 /* "get-stats" signal implementation
860 gst_multi_handle_sink_get_stats (GstMultiHandleSink * sink,
861 GstMultiSinkHandle handle)
863 GstMultiHandleClient *client;
864 GstStructure *result = NULL;
866 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
867 GstMultiHandleSinkClass *mhsinkclass =
868 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
871 mhsinkclass->handle_debug (handle, debug);
874 clink = g_hash_table_lookup (mhsink->handle_hash,
875 mhsinkclass->handle_hash_key (handle));
879 client = clink->data;
880 if (client != NULL) {
881 GstMultiHandleClient *mhclient = (GstMultiHandleClient *) client;
884 result = gst_structure_new_empty ("multihandlesink-stats");
886 if (mhclient->disconnect_time == 0) {
889 g_get_current_time (&nowtv);
891 interval = GST_TIMEVAL_TO_TIME (nowtv) - mhclient->connect_time;
893 interval = mhclient->disconnect_time - mhclient->connect_time;
896 gst_structure_set (result,
897 "bytes-sent", G_TYPE_UINT64, mhclient->bytes_sent,
898 "connect-time", G_TYPE_UINT64, mhclient->connect_time,
899 "disconnect-time", G_TYPE_UINT64, mhclient->disconnect_time,
900 "connect-duration", G_TYPE_UINT64, interval,
901 "last-activitity-time", G_TYPE_UINT64, mhclient->last_activity_time,
902 "buffers-dropped", G_TYPE_UINT64, mhclient->dropped_buffers,
903 "first-buffer-ts", G_TYPE_UINT64, mhclient->first_buffer_ts,
904 "last-buffer-ts", G_TYPE_UINT64, mhclient->last_buffer_ts, NULL);
908 CLIENTS_UNLOCK (sink);
910 /* python doesn't like a NULL pointer yet */
911 if (result == NULL) {
912 GST_WARNING_OBJECT (sink, "%s no client with this found!", debug);
913 result = gst_structure_new_empty ("multihandlesink-stats");
919 /* should be called with the clientslock held.
920 * Note that we don't close the fd as we didn't open it in the first
921 * place. An application should connect to the client-fd-removed signal and
922 * close the fd itself.
925 gst_multi_handle_sink_remove_client_link (GstMultiHandleSink * sink,
929 GstMultiHandleClient *mhclient = (GstMultiHandleClient *) link->data;
930 GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
932 if (mhclient->currently_removing) {
933 GST_WARNING_OBJECT (sink, "%s client is already being removed",
937 mhclient->currently_removing = TRUE;
940 /* FIXME: if we keep track of ip we can log it here and signal */
941 switch (mhclient->status) {
942 case GST_CLIENT_STATUS_OK:
943 GST_WARNING_OBJECT (sink, "%s removing client %p for no reason",
944 mhclient->debug, mhclient);
946 case GST_CLIENT_STATUS_CLOSED:
947 GST_DEBUG_OBJECT (sink, "%s removing client %p because of close",
948 mhclient->debug, mhclient);
950 case GST_CLIENT_STATUS_REMOVED:
951 GST_DEBUG_OBJECT (sink,
952 "%s removing client %p because the app removed it", mhclient->debug,
955 case GST_CLIENT_STATUS_SLOW:
956 GST_INFO_OBJECT (sink,
957 "%s removing client %p because it was too slow", mhclient->debug,
960 case GST_CLIENT_STATUS_ERROR:
961 GST_WARNING_OBJECT (sink,
962 "%s removing client %p because of error", mhclient->debug, mhclient);
964 case GST_CLIENT_STATUS_FLUSHING:
966 GST_WARNING_OBJECT (sink,
967 "%s removing client %p with invalid reason %d", mhclient->debug,
968 mhclient, mhclient->status);
972 mhsinkclass->hash_removing (sink, mhclient);
974 g_get_current_time (&now);
975 mhclient->disconnect_time = GST_TIMEVAL_TO_TIME (now);
977 /* free client buffers */
978 g_slist_foreach (mhclient->sending, (GFunc) gst_mini_object_unref, NULL);
979 g_slist_free (mhclient->sending);
980 mhclient->sending = NULL;
983 gst_caps_unref (mhclient->caps);
984 mhclient->caps = NULL;
986 /* unlock the mutex before signaling because the signal handler
987 * might query some properties */
988 CLIENTS_UNLOCK (sink);
990 mhsinkclass->emit_client_removed (sink, mhclient->handle, mhclient->status);
992 /* lock again before we remove the client completely */
995 /* handle cannot be reused in the above signal callback so we can safely
996 * remove it from the hashtable here */
997 if (!g_hash_table_remove (sink->handle_hash,
998 mhsinkclass->handle_hash_key (mhclient->handle))) {
999 GST_WARNING_OBJECT (sink,
1000 "%s error removing client %p from hash", mhclient->debug, mhclient);
1002 /* after releasing the lock above, the link could be invalid, more
1003 * precisely, the next and prev pointers could point to invalid list
1004 * links. One optimisation could be to add a cookie to the linked list
1005 * and take a shortcut when it did not change between unlocking and locking
1006 * our mutex. For now we just walk the list again. */
1007 sink->clients = g_list_remove (sink->clients, mhclient);
1008 sink->clients_cookie++;
1010 if (mhsinkclass->removed)
1011 mhsinkclass->removed (sink, mhclient->handle);
1013 CLIENTS_UNLOCK (sink);
1015 /* sub-class must implement this to emit the client-$handle-removed signal */
1016 g_assert (mhsinkclass->client_free != NULL);
1018 /* and the handle is really gone now */
1019 mhsinkclass->client_free (sink, mhclient);
1023 CLIENTS_LOCK (sink);
1027 gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink * mhsink,
1028 GstMultiHandleClient * mhclient, GstBuffer * buffer)
1030 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
1033 /* TRUE: send them if the new caps have them */
1034 gboolean send_streamheader = FALSE;
1037 /* before we queue the buffer, we check if we need to queue streamheader
1038 * buffers (because it's a new client, or because they changed) */
1039 caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
1041 if (!mhclient->caps) {
1042 GST_DEBUG_OBJECT (sink,
1043 "%s no previous caps for this client, send streamheader",
1045 send_streamheader = TRUE;
1046 mhclient->caps = gst_caps_ref (caps);
1048 /* there were previous caps recorded, so compare */
1049 if (!gst_caps_is_equal (caps, mhclient->caps)) {
1050 const GValue *sh1, *sh2;
1052 /* caps are not equal, but could still have the same streamheader */
1053 s = gst_caps_get_structure (caps, 0);
1054 if (!gst_structure_has_field (s, "streamheader")) {
1055 /* no new streamheader, so nothing new to send */
1056 GST_DEBUG_OBJECT (sink,
1057 "%s new caps do not have streamheader, not sending",
1060 /* there is a new streamheader */
1061 s = gst_caps_get_structure (mhclient->caps, 0);
1062 if (!gst_structure_has_field (s, "streamheader")) {
1063 /* no previous streamheader, so send the new one */
1064 GST_DEBUG_OBJECT (sink,
1065 "%s previous caps did not have streamheader, sending",
1067 send_streamheader = TRUE;
1069 /* both old and new caps have streamheader set */
1070 if (!mhsink->resend_streamheader) {
1071 GST_DEBUG_OBJECT (sink,
1072 "%s asked to not resend the streamheader, not sending",
1074 send_streamheader = FALSE;
1076 sh1 = gst_structure_get_value (s, "streamheader");
1077 s = gst_caps_get_structure (caps, 0);
1078 sh2 = gst_structure_get_value (s, "streamheader");
1079 if (gst_value_compare (sh1, sh2) != GST_VALUE_EQUAL) {
1080 GST_DEBUG_OBJECT (sink,
1081 "%s new streamheader different from old, sending",
1083 send_streamheader = TRUE;
1089 /* Replace the old caps */
1090 gst_caps_unref (mhclient->caps);
1091 mhclient->caps = gst_caps_ref (caps);
1094 if (G_UNLIKELY (send_streamheader)) {
1099 GST_LOG_OBJECT (sink,
1100 "%s sending streamheader from caps %" GST_PTR_FORMAT,
1101 mhclient->debug, caps);
1102 s = gst_caps_get_structure (caps, 0);
1103 if (!gst_structure_has_field (s, "streamheader")) {
1104 GST_DEBUG_OBJECT (sink,
1105 "%s no new streamheader, so nothing to send", mhclient->debug);
1107 GST_LOG_OBJECT (sink,
1108 "%s sending streamheader from caps %" GST_PTR_FORMAT,
1109 mhclient->debug, caps);
1110 sh = gst_structure_get_value (s, "streamheader");
1111 g_assert (G_VALUE_TYPE (sh) == GST_TYPE_ARRAY);
1112 buffers = g_value_peek_pointer (sh);
1113 GST_DEBUG_OBJECT (sink, "%d streamheader buffers", buffers->len);
1114 for (i = 0; i < buffers->len; ++i) {
1118 bufval = &g_array_index (buffers, GValue, i);
1119 g_assert (G_VALUE_TYPE (bufval) == GST_TYPE_BUFFER);
1120 buffer = g_value_peek_pointer (bufval);
1121 GST_DEBUG_OBJECT (sink,
1122 "%s queueing streamheader buffer of length %" G_GSIZE_FORMAT,
1123 mhclient->debug, gst_buffer_get_size (buffer));
1124 gst_buffer_ref (buffer);
1126 mhclient->sending = g_slist_append (mhclient->sending, buffer);
1131 gst_caps_unref (caps);
1134 GST_LOG_OBJECT (sink, "%s queueing buffer of length %" G_GSIZE_FORMAT,
1135 mhclient->debug, gst_buffer_get_size (buffer));
1137 gst_buffer_ref (buffer);
1138 mhclient->sending = g_slist_append (mhclient->sending, buffer);
1144 is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer)
1146 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
1148 } else if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER)) {
1155 /* find the keyframe in the list of buffers starting the
1156 * search from @idx. @direction as -1 will search backwards,
1157 * 1 will search forwards.
1158 * Returns: the index or -1 if there is no keyframe after idx.
1161 find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction)
1163 gint i, len, result;
1165 /* take length of queued buffers */
1166 len = sink->bufqueue->len;
1168 /* assume we don't find a keyframe */
1171 /* then loop over all buffers to find the first keyframe */
1172 for (i = idx; i >= 0 && i < len; i += direction) {
1175 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1176 if (is_sync_frame (sink, buf)) {
1177 GST_LOG_OBJECT (sink, "found keyframe at %d from %d, direction %d",
1186 /* Get the number of buffers from the buffer queue needed to satisfy
1187 * the maximum max in the configured units.
1188 * If units are not BUFFERS, and there are insufficient buffers in the
1189 * queue to satify the limit, return len(queue) + 1 */
1191 get_buffers_max (GstMultiHandleSink * sink, gint64 max)
1193 switch (sink->unit_format) {
1194 case GST_FORMAT_BUFFERS:
1196 case GST_FORMAT_TIME:
1202 GstClockTime first = GST_CLOCK_TIME_NONE;
1204 len = sink->bufqueue->len;
1206 for (i = 0; i < len; i++) {
1207 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1208 if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
1210 first = GST_BUFFER_TIMESTAMP (buf);
1212 diff = first - GST_BUFFER_TIMESTAMP (buf);
1220 case GST_FORMAT_BYTES:
1227 len = sink->bufqueue->len;
1229 for (i = 0; i < len; i++) {
1230 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1231 acc += gst_buffer_get_size (buf);
1243 /* find the positions in the buffer queue where *_min and *_max
1246 /* count the amount of data in the buffers and return the index
1247 * that satifies the given limits.
1249 * Returns: index @idx in the buffer queue so that the given limits are
1250 * satisfied. TRUE if all the limits could be satisfied, FALSE if not
1251 * enough data was in the queue.
1253 * FIXME, this code might now work if any of the units is in buffers...
1256 find_limits (GstMultiHandleSink * sink,
1257 gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
1258 gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max)
1260 GstClockTime first, time;
1262 gboolean result, max_hit;
1264 /* take length of queue */
1265 len = sink->bufqueue->len;
1267 /* this must hold */
1270 GST_LOG_OBJECT (sink,
1271 "bytes_min %d, buffers_min %d, time_min %" GST_TIME_FORMAT
1272 ", bytes_max %d, buffers_max %d, time_max %" GST_TIME_FORMAT, bytes_min,
1273 buffers_min, GST_TIME_ARGS (time_min), bytes_max, buffers_max,
1274 GST_TIME_ARGS (time_max));
1276 /* do the trivial buffer limit test */
1277 if (buffers_min != -1 && len < buffers_min) {
1284 /* else count bytes and time */
1293 /* loop through the buffers, when a limit is ok, mark it
1294 * as -1, we have at least one buffer in the queue. */
1298 /* if we checked all min limits, update result */
1299 if (bytes_min == -1 && time_min == -1 && *min_idx == -1) {
1300 /* don't go below 0 */
1301 *min_idx = MAX (i - 1, 0);
1303 /* if we reached one max limit break out */
1305 /* i > 0 when we get here, we subtract one to get the position
1306 * of the previous buffer. */
1308 /* we have valid complete result if we found a min_idx too */
1309 result = *min_idx != -1;
1312 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1314 bytes += gst_buffer_get_size (buf);
1316 /* take timestamp and save for the base first timestamp */
1317 if ((time = GST_BUFFER_TIMESTAMP (buf)) != -1) {
1318 GST_LOG_OBJECT (sink, "Ts %" GST_TIME_FORMAT " on buffer",
1319 GST_TIME_ARGS (time));
1323 /* increase max usage if we did not fill enough. Note that
1324 * buffers are sorted from new to old, so the first timestamp is
1325 * bigger than the next one. */
1326 if (time_min != -1 && first - time >= time_min)
1328 if (time_max != -1 && first - time >= time_max)
1331 GST_LOG_OBJECT (sink, "No timestamp on buffer");
1333 /* time is OK or unknown, check and increase if not enough bytes */
1334 if (bytes_min != -1) {
1335 if (bytes >= bytes_min)
1338 if (bytes_max != -1) {
1339 if (bytes >= bytes_max) {
1347 /* if we did not hit the max or min limit, set to buffer size */
1350 /* make sure min does not exceed max */
1352 *min_idx = *max_idx;
1357 /* parse the unit/value pair and assign it to the result value of the
1358 * right type, leave the other values untouched
1360 * Returns: FALSE if the unit is unknown or undefined. TRUE otherwise.
1363 assign_value (GstFormat format, guint64 value, gint * bytes, gint * buffers,
1364 GstClockTime * time)
1366 gboolean res = TRUE;
1368 /* set only the limit of the given format to the given value */
1370 case GST_FORMAT_BUFFERS:
1371 *buffers = (gint) value;
1373 case GST_FORMAT_TIME:
1376 case GST_FORMAT_BYTES:
1377 *bytes = (gint) value;
1379 case GST_FORMAT_UNDEFINED:
1387 /* count the index in the buffer queue to satisfy the given unit
1388 * and value pair starting from buffer at index 0.
1390 * Returns: TRUE if there was enough data in the queue to satisfy the
1391 * burst values. @idx contains the index in the buffer that contains enough
1392 * data to satisfy the limits or the last buffer in the queue when the
1393 * function returns FALSE.
1396 count_burst_unit (GstMultiHandleSink * sink, gint * min_idx,
1397 GstFormat min_format, guint64 min_value, gint * max_idx,
1398 GstFormat max_format, guint64 max_value)
1400 gint bytes_min = -1, buffers_min = -1;
1401 gint bytes_max = -1, buffers_max = -1;
1402 GstClockTime time_min = GST_CLOCK_TIME_NONE, time_max = GST_CLOCK_TIME_NONE;
1404 assign_value (min_format, min_value, &bytes_min, &buffers_min, &time_min);
1405 assign_value (max_format, max_value, &bytes_max, &buffers_max, &time_max);
1407 return find_limits (sink, min_idx, bytes_min, buffers_min, time_min,
1408 max_idx, bytes_max, buffers_max, time_max);
1411 /* decide where in the current buffer queue this new client should start
1412 * receiving buffers from.
1413 * This function is called whenever a client is connected and has not yet
1414 * received a buffer.
1415 * If this returns -1, it means that we haven't found a good point to
1416 * start streaming from yet, and this function should be called again later
1417 * when more buffers have arrived.
1420 gst_multi_handle_sink_new_client_position (GstMultiHandleSink * sink,
1421 GstMultiHandleClient * client)
1425 GST_DEBUG_OBJECT (sink,
1426 "%s new client, deciding where to start in queue", client->debug);
1427 GST_DEBUG_OBJECT (sink, "queue is currently %d buffers long",
1428 sink->bufqueue->len);
1429 switch (client->sync_method) {
1430 case GST_SYNC_METHOD_LATEST:
1431 /* no syncing, we are happy with whatever the client is going to get */
1432 result = client->bufpos;
1433 GST_DEBUG_OBJECT (sink,
1434 "%s SYNC_METHOD_LATEST, position %d", client->debug, result);
1436 case GST_SYNC_METHOD_NEXT_KEYFRAME:
1438 /* if one of the new buffers (between client->bufpos and 0) in the queue
1439 * is a sync point, we can proceed, otherwise we need to keep waiting */
1440 GST_LOG_OBJECT (sink,
1441 "%s new client, bufpos %d, waiting for keyframe",
1442 client->debug, client->bufpos);
1444 result = find_prev_syncframe (sink, client->bufpos);
1446 GST_DEBUG_OBJECT (sink,
1447 "%s SYNC_METHOD_NEXT_KEYFRAME: result %d", client->debug, result);
1451 /* client is not on a syncbuffer, need to skip these buffers and
1453 GST_LOG_OBJECT (sink,
1454 "%s new client, skipping buffer(s), no syncpoint found",
1456 client->bufpos = -1;
1459 case GST_SYNC_METHOD_LATEST_KEYFRAME:
1461 GST_DEBUG_OBJECT (sink, "%s SYNC_METHOD_LATEST_KEYFRAME", client->debug);
1463 /* for new clients we initially scan the complete buffer queue for
1464 * a sync point when a buffer is added. If we don't find a keyframe,
1465 * we need to wait for the next keyframe and so we change the client's
1466 * sync method to GST_SYNC_METHOD_NEXT_KEYFRAME.
1468 result = find_next_syncframe (sink, 0);
1470 GST_DEBUG_OBJECT (sink,
1471 "%s SYNC_METHOD_LATEST_KEYFRAME: result %d", client->debug, result);
1475 GST_DEBUG_OBJECT (sink,
1476 "%s SYNC_METHOD_LATEST_KEYFRAME: no keyframe found, "
1477 "switching to SYNC_METHOD_NEXT_KEYFRAME", client->debug);
1478 /* throw client to the waiting state */
1479 client->bufpos = -1;
1480 /* and make client sync to next keyframe */
1481 client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
1484 case GST_SYNC_METHOD_BURST:
1489 /* move to the position where we satisfy the client's burst
1490 * parameters. If we could not satisfy the parameters because there
1491 * is not enough data, we just send what we have (which is in result).
1492 * We use the max value to limit the search
1494 ok = count_burst_unit (sink, &result, client->burst_min_format,
1495 client->burst_min_value, &max, client->burst_max_format,
1496 client->burst_max_value);
1497 GST_DEBUG_OBJECT (sink,
1498 "%s SYNC_METHOD_BURST: burst_unit returned %d, result %d",
1499 client->debug, ok, result);
1501 GST_LOG_OBJECT (sink, "min %d, max %d", result, max);
1503 /* we hit the max and it is below the min, use that then */
1504 if (max != -1 && max <= result) {
1505 result = MAX (max - 1, 0);
1506 GST_DEBUG_OBJECT (sink,
1507 "%s SYNC_METHOD_BURST: result above max, taken down to %d",
1508 client->debug, result);
1512 case GST_SYNC_METHOD_BURST_KEYFRAME:
1514 gint min_idx, max_idx;
1515 gint next_syncframe, prev_syncframe;
1519 * _always_ start sending a keyframe to the client. We first search
1520 * a keyframe between min/max limits. If there is none, we send it the
1521 * last keyframe before min. If there is none, the behaviour is like
1524 /* gather burst limits */
1525 count_burst_unit (sink, &min_idx, client->burst_min_format,
1526 client->burst_min_value, &max_idx, client->burst_max_format,
1527 client->burst_max_value);
1529 GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
1531 /* first find a keyframe after min_idx */
1532 next_syncframe = find_next_syncframe (sink, min_idx);
1533 if (next_syncframe != -1 && next_syncframe < max_idx) {
1534 /* we have a valid keyframe and it's below the max */
1535 GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
1536 result = next_syncframe;
1540 /* no valid keyframe, try to find one below min */
1541 prev_syncframe = find_prev_syncframe (sink, min_idx);
1542 if (prev_syncframe != -1) {
1543 GST_WARNING_OBJECT (sink,
1544 "using keyframe below min in BURST_KEYFRAME sync mode");
1545 result = prev_syncframe;
1549 /* no prev keyframe or not enough data */
1550 GST_WARNING_OBJECT (sink,
1551 "no prev keyframe found in BURST_KEYFRAME sync mode, waiting for next");
1553 /* throw client to the waiting state */
1554 client->bufpos = -1;
1555 /* and make client sync to next keyframe */
1556 client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
1560 case GST_SYNC_METHOD_BURST_WITH_KEYFRAME:
1562 gint min_idx, max_idx;
1563 gint next_syncframe;
1565 /* BURST_WITH_KEYFRAME:
1567 * try to start sending a keyframe to the client. We first search
1568 * a keyframe between min/max limits. If there is none, we send it the
1569 * amount of data up 'till min.
1571 /* gather enough data to burst */
1572 count_burst_unit (sink, &min_idx, client->burst_min_format,
1573 client->burst_min_value, &max_idx, client->burst_max_format,
1574 client->burst_max_value);
1576 GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
1578 /* first find a keyframe after min_idx */
1579 next_syncframe = find_next_syncframe (sink, min_idx);
1580 if (next_syncframe != -1 && next_syncframe < max_idx) {
1581 /* we have a valid keyframe and it's below the max */
1582 GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
1583 result = next_syncframe;
1587 /* no keyframe, send data from min_idx */
1588 GST_WARNING_OBJECT (sink, "using min in BURST_WITH_KEYFRAME sync mode");
1590 /* make sure we don't go over the max limit */
1591 if (max_idx != -1 && max_idx <= min_idx) {
1592 result = MAX (max_idx - 1, 0);
1600 g_warning ("unknown sync method %d", client->sync_method);
1601 result = client->bufpos;
1607 /* calculate the new position for a client after recovery. This function
1608 * does not update the client position but merely returns the required
1612 gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
1613 GstMultiHandleClient * client)
1617 GST_WARNING_OBJECT (sink,
1618 "%s client %p is lagging at %d, recover using policy %d",
1619 client->debug, client, client->bufpos, sink->recover_policy);
1621 switch (sink->recover_policy) {
1622 case GST_RECOVER_POLICY_NONE:
1623 /* do nothing, client will catch up or get kicked out when it reaches
1625 newbufpos = client->bufpos;
1627 case GST_RECOVER_POLICY_RESYNC_LATEST:
1628 /* move to beginning of queue */
1631 case GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT:
1632 /* move to beginning of soft max */
1633 newbufpos = get_buffers_max (sink, sink->units_soft_max);
1635 case GST_RECOVER_POLICY_RESYNC_KEYFRAME:
1636 /* find keyframe in buffers, we search backwards to find the
1637 * closest keyframe relative to what this client already received. */
1638 newbufpos = MIN (sink->bufqueue->len - 1,
1639 get_buffers_max (sink, sink->units_soft_max) - 1);
1641 while (newbufpos >= 0) {
1644 buf = g_array_index (sink->bufqueue, GstBuffer *, newbufpos);
1645 if (is_sync_frame (sink, buf)) {
1646 /* found a buffer that is not a delta unit */
1653 /* unknown recovery procedure */
1654 newbufpos = get_buffers_max (sink, sink->units_soft_max);
1660 /* Queue a buffer on the global queue.
1662 * This function adds the buffer to the front of a GArray. It removes the
1663 * tail buffer if the max queue size is exceeded, unreffing the queued buffer.
1664 * Note that unreffing the buffer is not a problem as clients who
1665 * started writing out this buffer will still have a reference to it in the
1666 * mhclient->sending queue.
1668 * After adding the buffer, we update all client positions in the queue. If
1669 * a client moves over the soft max, we start the recovery procedure for this
1670 * slow client. If it goes over the hard max, it is put into the slow list
1673 * Special care is taken of clients that were waiting for a new buffer (they
1674 * had a position of -1) because they can proceed after adding this new buffer.
1675 * This is done by adding the client back into the write fd_set and signaling
1676 * the select thread that the fd_set changed.
1679 gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
1682 GList *clients, *next;
1684 gboolean hash_changed = FALSE;
1685 gint max_buffer_usage;
1689 gint max_buffers, soft_max_buffers;
1691 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
1692 GstMultiHandleSinkClass *mhsinkclass =
1693 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
1695 g_get_current_time (&nowtv);
1696 now = GST_TIMEVAL_TO_TIME (nowtv);
1698 CLIENTS_LOCK (mhsink);
1699 /* add buffer to queue */
1700 g_array_prepend_val (mhsink->bufqueue, buffer);
1701 queuelen = mhsink->bufqueue->len;
1703 if (mhsink->units_max > 0)
1704 max_buffers = get_buffers_max (mhsink, mhsink->units_max);
1708 if (mhsink->units_soft_max > 0)
1709 soft_max_buffers = get_buffers_max (mhsink, mhsink->units_soft_max);
1711 soft_max_buffers = -1;
1712 GST_LOG_OBJECT (sink, "Using max %d, softmax %d", max_buffers,
1715 /* then loop over the clients and update the positions */
1716 max_buffer_usage = 0;
1719 cookie = mhsink->clients_cookie;
1720 for (clients = mhsink->clients; clients; clients = next) {
1721 GstMultiHandleClient *mhclient = clients->data;
1723 if (cookie != mhsink->clients_cookie) {
1724 GST_DEBUG_OBJECT (sink, "Clients cookie outdated, restarting");
1728 next = g_list_next (clients);
1731 GST_LOG_OBJECT (sink, "%s client %p at position %d",
1732 mhclient->debug, mhclient, mhclient->bufpos);
1733 /* check soft max if needed, recover client */
1734 if (soft_max_buffers > 0 && mhclient->bufpos >= soft_max_buffers) {
1737 newpos = gst_multi_handle_sink_recover_client (mhsink, mhclient);
1738 if (newpos != mhclient->bufpos) {
1739 mhclient->dropped_buffers += mhclient->bufpos - newpos;
1740 mhclient->bufpos = newpos;
1741 mhclient->discont = TRUE;
1742 GST_INFO_OBJECT (sink, "%s client %p position reset to %d",
1743 mhclient->debug, mhclient, mhclient->bufpos);
1745 GST_INFO_OBJECT (sink,
1746 "%s client %p not recovering position", mhclient->debug, mhclient);
1749 /* check hard max and timeout, remove client */
1750 if ((max_buffers > 0 && mhclient->bufpos >= max_buffers) ||
1751 (mhsink->timeout > 0
1752 && now - mhclient->last_activity_time > mhsink->timeout)) {
1754 GST_WARNING_OBJECT (sink, "%s client %p is too slow, removing",
1755 mhclient->debug, mhclient);
1756 /* remove the client, the handle set will be cleared and the select thread
1757 * will be signaled */
1758 mhclient->status = GST_CLIENT_STATUS_SLOW;
1759 /* set client to invalid position while being removed */
1760 mhclient->bufpos = -1;
1761 gst_multi_handle_sink_remove_client_link (mhsink, clients);
1762 hash_changed = TRUE;
1764 } else if (mhclient->bufpos == 0 || mhclient->new_connection) {
1765 /* can send data to this client now. need to signal the select thread that
1766 * the handle_set changed */
1767 mhsinkclass->hash_adding (mhsink, mhclient);
1768 hash_changed = TRUE;
1770 /* keep track of maximum buffer usage */
1771 if (mhclient->bufpos > max_buffer_usage) {
1772 max_buffer_usage = mhclient->bufpos;
1776 /* make sure we respect bytes-min, buffers-min and time-min when they are set */
1780 GST_LOG_OBJECT (sink,
1781 "extending queue %d to respect time_min %" GST_TIME_FORMAT
1782 ", bytes_min %d, buffers_min %d", max_buffer_usage,
1783 GST_TIME_ARGS (mhsink->time_min), mhsink->bytes_min,
1784 mhsink->buffers_min);
1786 /* get index where the limits are ok, we don't really care if all limits
1787 * are ok, we just queue as much as we need. We also don't compare against
1788 * the max limits. */
1789 find_limits (mhsink, &usage, mhsink->bytes_min, mhsink->buffers_min,
1790 mhsink->time_min, &max, -1, -1, -1);
1792 max_buffer_usage = MAX (max_buffer_usage, usage + 1);
1793 GST_LOG_OBJECT (sink, "extended queue to %d", max_buffer_usage);
1796 /* now look for sync points and make sure there is at least one
1797 * sync point in the queue. We only do this if the LATEST_KEYFRAME or
1798 * BURST_KEYFRAME mode is selected */
1799 if (mhsink->def_sync_method == GST_SYNC_METHOD_LATEST_KEYFRAME ||
1800 mhsink->def_sync_method == GST_SYNC_METHOD_BURST_KEYFRAME) {
1801 /* no point in searching beyond the queue length */
1802 gint limit = queuelen;
1805 /* no point in searching beyond the soft-max if any. */
1806 if (soft_max_buffers > 0) {
1807 limit = MIN (limit, soft_max_buffers);
1809 GST_LOG_OBJECT (sink,
1810 "extending queue to include sync point, now at %d, limit is %d",
1811 max_buffer_usage, limit);
1812 for (i = 0; i < limit; i++) {
1813 buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
1814 if (is_sync_frame (mhsink, buf)) {
1815 /* found a sync frame, now extend the buffer usage to
1816 * include at least this frame. */
1817 max_buffer_usage = MAX (max_buffer_usage, i);
1821 GST_LOG_OBJECT (sink, "max buffer usage is now %d", max_buffer_usage);
1824 GST_LOG_OBJECT (sink, "len %d, usage %d", queuelen, max_buffer_usage);
1826 /* nobody is referencing units after max_buffer_usage so we can
1827 * remove them from the queue. We remove them in reverse order as
1828 * this is the most optimal for GArray. */
1829 for (i = queuelen - 1; i > max_buffer_usage; i--) {
1832 /* queue exceeded max size */
1834 old = g_array_index (mhsink->bufqueue, GstBuffer *, i);
1835 mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
1837 /* unref tail buffer */
1838 gst_buffer_unref (old);
1840 /* save for stats */
1841 mhsink->buffers_queued = max_buffer_usage;
1842 CLIENTS_UNLOCK (sink);
1844 /* and send a signal to thread if handle_set changed */
1845 if (hash_changed && mhsinkclass->hash_changed) {
1846 mhsinkclass->hash_changed (mhsink);
1850 static GstFlowReturn
1851 gst_multi_handle_sink_render (GstBaseSink * bsink, GstBuffer * buf)
1855 GstCaps *bufcaps, *padcaps;
1858 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (bsink);
1860 g_return_val_if_fail (GST_OBJECT_FLAG_IS_SET (sink,
1861 GST_MULTI_HANDLE_SINK_OPEN), GST_FLOW_FLUSHING);
1864 /* since we check every buffer for streamheader caps, we need to make
1865 * sure every buffer has caps set */
1866 bufcaps = gst_buffer_get_caps (buf);
1867 padcaps = GST_PAD_CAPS (GST_BASE_SINK_PAD (bsink));
1869 /* make sure we have caps on the pad */
1870 if (!padcaps && !bufcaps)
1874 /* get IN_CAPS first, code below might mess with the flags */
1875 in_caps = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_HEADER);
1878 /* stamp the buffer with previous caps if no caps set */
1880 if (!gst_buffer_is_writable (buf)) {
1881 /* metadata is not writable, copy will be made and original buffer
1882 * will be unreffed so we need to ref so that we don't lose the
1883 * buffer in the render method. */
1884 gst_buffer_ref (buf);
1885 /* the new buffer is ours only, we keep it out of the scope of this
1887 buf = gst_buffer_make_writable (buf);
1889 /* else the metadata is writable, we ref because we keep the buffer
1890 * out of the scope of this method */
1891 gst_buffer_ref (buf);
1893 /* buffer metadata is writable now, set the caps */
1894 gst_buffer_set_caps (buf, padcaps);
1896 gst_caps_unref (bufcaps);
1898 /* since we keep this buffer out of the scope of this method */
1899 gst_buffer_ref (buf);
1902 gst_buffer_ref (buf);
1904 GST_LOG_OBJECT (sink, "received buffer %p, in_caps: %s, offset %"
1905 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT
1906 ", timestamp %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
1907 buf, in_caps ? "yes" : "no", GST_BUFFER_OFFSET (buf),
1908 GST_BUFFER_OFFSET_END (buf),
1909 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
1910 GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
1912 /* if we get IN_CAPS buffers, but the previous buffer was not IN_CAPS,
1913 * it means we're getting new streamheader buffers, and we should clear
1915 if (in_caps && sink->previous_buffer_in_caps == FALSE) {
1916 GST_DEBUG_OBJECT (sink,
1917 "receiving new HEADER buffers, clearing old streamheader");
1918 g_slist_foreach (sink->streamheader, (GFunc) gst_mini_object_unref, NULL);
1919 g_slist_free (sink->streamheader);
1920 sink->streamheader = NULL;
1923 /* save the current in_caps */
1924 sink->previous_buffer_in_caps = in_caps;
1926 /* if the incoming buffer is marked as IN CAPS, then we assume for now
1927 * it's a streamheader that needs to be sent to each new client, so we
1928 * put it on our internal list of streamheader buffers.
1929 * FIXME: we could check if the buffer's contents are in fact part of the
1930 * current streamheader.
1932 * We don't send the buffer to the client, since streamheaders are sent
1933 * separately when necessary. */
1935 GST_DEBUG_OBJECT (sink, "appending HEADER buffer with length %"
1936 G_GSIZE_FORMAT " to streamheader", gst_buffer_get_size (buf));
1937 sink->streamheader = g_slist_append (sink->streamheader, buf);
1939 /* queue the buffer, this is a regular data buffer. */
1940 gst_multi_handle_sink_queue_buffer (sink, buf);
1942 sink->bytes_to_serve += gst_buffer_get_size (buf);
1950 GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL),
1951 ("Received first buffer without caps set"));
1952 return GST_FLOW_NOT_NEGOTIATED;
1958 gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
1959 const GValue * value, GParamSpec * pspec)
1961 GstMultiHandleSink *multihandlesink;
1963 multihandlesink = GST_MULTI_HANDLE_SINK (object);
1966 case PROP_BUFFERS_MAX:
1967 multihandlesink->units_max = g_value_get_int (value);
1969 case PROP_BUFFERS_SOFT_MAX:
1970 multihandlesink->units_soft_max = g_value_get_int (value);
1973 multihandlesink->time_min = g_value_get_int64 (value);
1975 case PROP_BYTES_MIN:
1976 multihandlesink->bytes_min = g_value_get_int (value);
1978 case PROP_BUFFERS_MIN:
1979 multihandlesink->buffers_min = g_value_get_int (value);
1981 case PROP_UNIT_FORMAT:
1982 multihandlesink->unit_format = g_value_get_enum (value);
1984 case PROP_UNITS_MAX:
1985 multihandlesink->units_max = g_value_get_int64 (value);
1987 case PROP_UNITS_SOFT_MAX:
1988 multihandlesink->units_soft_max = g_value_get_int64 (value);
1990 case PROP_RECOVER_POLICY:
1991 multihandlesink->recover_policy = g_value_get_enum (value);
1994 multihandlesink->timeout = g_value_get_uint64 (value);
1996 case PROP_SYNC_METHOD:
1997 multihandlesink->def_sync_method = g_value_get_enum (value);
1999 case PROP_BURST_FORMAT:
2000 multihandlesink->def_burst_format = g_value_get_enum (value);
2002 case PROP_BURST_VALUE:
2003 multihandlesink->def_burst_value = g_value_get_uint64 (value);
2006 multihandlesink->qos_dscp = g_value_get_int (value);
2007 gst_multi_handle_sink_setup_dscp (multihandlesink);
2010 case PROP_RESEND_STREAMHEADER:
2011 multihandlesink->resend_streamheader = g_value_get_boolean (value);
2015 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2021 gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
2022 GValue * value, GParamSpec * pspec)
2024 GstMultiHandleSink *multihandlesink;
2026 multihandlesink = GST_MULTI_HANDLE_SINK (object);
2029 case PROP_BUFFERS_MAX:
2030 g_value_set_int (value, multihandlesink->units_max);
2032 case PROP_BUFFERS_SOFT_MAX:
2033 g_value_set_int (value, multihandlesink->units_soft_max);
2036 g_value_set_int64 (value, multihandlesink->time_min);
2038 case PROP_BYTES_MIN:
2039 g_value_set_int (value, multihandlesink->bytes_min);
2041 case PROP_BUFFERS_MIN:
2042 g_value_set_int (value, multihandlesink->buffers_min);
2044 case PROP_BUFFERS_QUEUED:
2045 g_value_set_uint (value, multihandlesink->buffers_queued);
2047 case PROP_BYTES_QUEUED:
2048 g_value_set_uint (value, multihandlesink->bytes_queued);
2050 case PROP_TIME_QUEUED:
2051 g_value_set_uint64 (value, multihandlesink->time_queued);
2053 case PROP_UNIT_FORMAT:
2054 g_value_set_enum (value, multihandlesink->unit_format);
2056 case PROP_UNITS_MAX:
2057 g_value_set_int64 (value, multihandlesink->units_max);
2059 case PROP_UNITS_SOFT_MAX:
2060 g_value_set_int64 (value, multihandlesink->units_soft_max);
2062 case PROP_RECOVER_POLICY:
2063 g_value_set_enum (value, multihandlesink->recover_policy);
2066 g_value_set_uint64 (value, multihandlesink->timeout);
2068 case PROP_SYNC_METHOD:
2069 g_value_set_enum (value, multihandlesink->def_sync_method);
2071 case PROP_BYTES_TO_SERVE:
2072 g_value_set_uint64 (value, multihandlesink->bytes_to_serve);
2074 case PROP_BYTES_SERVED:
2075 g_value_set_uint64 (value, multihandlesink->bytes_served);
2077 case PROP_BURST_FORMAT:
2078 g_value_set_enum (value, multihandlesink->def_burst_format);
2080 case PROP_BURST_VALUE:
2081 g_value_set_uint64 (value, multihandlesink->def_burst_value);
2084 g_value_set_int (value, multihandlesink->qos_dscp);
2086 case PROP_RESEND_STREAMHEADER:
2087 g_value_set_boolean (value, multihandlesink->resend_streamheader);
2089 case PROP_NUM_HANDLES:
2090 g_value_set_uint (value,
2091 g_hash_table_size (multihandlesink->handle_hash));
2094 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2099 /* create a socket for sending to remote machine */
2101 gst_multi_handle_sink_start (GstBaseSink * bsink)
2103 GstMultiHandleSinkClass *mhsclass;
2104 GstMultiHandleSink *mhsink;
2106 if (GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
2109 mhsink = GST_MULTI_HANDLE_SINK (bsink);
2110 mhsclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
2112 if (!mhsclass->start_pre (mhsink))
2115 mhsink->streamheader = NULL;
2116 mhsink->bytes_to_serve = 0;
2117 mhsink->bytes_served = 0;
2119 if (mhsclass->init) {
2120 mhsclass->init (mhsink);
2123 mhsink->running = TRUE;
2125 mhsink->thread = g_thread_new ("multihandlesink",
2126 (GThreadFunc) mhsclass->thread, mhsink);
2128 GST_OBJECT_FLAG_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN);
2134 gst_multi_handle_sink_stop (GstBaseSink * bsink)
2136 GstMultiHandleSinkClass *mhclass;
2139 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (bsink);
2141 mhclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
2143 if (!GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
2146 mhsink->running = FALSE;
2148 mhclass->stop_pre (mhsink);
2150 if (mhsink->thread) {
2151 GST_DEBUG_OBJECT (mhsink, "joining thread");
2152 g_thread_join (mhsink->thread);
2153 GST_DEBUG_OBJECT (mhsink, "joined thread");
2154 mhsink->thread = NULL;
2157 /* free the clients */
2158 mhclass->clear (GST_MULTI_HANDLE_SINK (mhsink));
2160 if (mhsink->streamheader) {
2161 g_slist_foreach (mhsink->streamheader, (GFunc) gst_mini_object_unref, NULL);
2162 g_slist_free (mhsink->streamheader);
2163 mhsink->streamheader = NULL;
2167 mhclass->close (mhsink);
2169 mhclass->stop_post (mhsink);
2171 /* remove all queued buffers */
2172 if (mhsink->bufqueue) {
2173 GST_DEBUG_OBJECT (mhsink, "Emptying bufqueue with %d buffers",
2174 mhsink->bufqueue->len);
2175 for (i = mhsink->bufqueue->len - 1; i >= 0; --i) {
2176 buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
2177 GST_LOG_OBJECT (mhsink, "Removing buffer %p (%d) with refcount %d", buf,
2178 i, GST_MINI_OBJECT_REFCOUNT (buf));
2179 gst_buffer_unref (buf);
2180 mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
2182 /* freeing the array is done in _finalize */
2184 GST_OBJECT_FLAG_UNSET (mhsink, GST_MULTI_HANDLE_SINK_OPEN);
2189 static GstStateChangeReturn
2190 gst_multi_handle_sink_change_state (GstElement * element,
2191 GstStateChange transition)
2193 GstMultiHandleSink *sink;
2194 GstStateChangeReturn ret;
2196 sink = GST_MULTI_HANDLE_SINK (element);
2198 /* we disallow changing the state from the streaming thread */
2199 if (g_thread_self () == sink->thread)
2200 return GST_STATE_CHANGE_FAILURE;
2203 switch (transition) {
2204 case GST_STATE_CHANGE_NULL_TO_READY:
2205 if (!gst_multi_handle_sink_start (GST_BASE_SINK (sink)))
2208 case GST_STATE_CHANGE_READY_TO_PAUSED:
2210 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2216 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2218 switch (transition) {
2219 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2221 case GST_STATE_CHANGE_PAUSED_TO_READY:
2223 case GST_STATE_CHANGE_READY_TO_NULL:
2224 gst_multi_handle_sink_stop (GST_BASE_SINK (sink));
2234 /* error message was posted */
2235 return GST_STATE_CHANGE_FAILURE;