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 * @title: multihandlesink
27 * @see_also: tcpserversink
29 * This plugin writes incoming data to a set of file descriptors. The
30 * file descriptors can be added to multihandlesink by emitting the #GstMultiHandleSink::add signal.
31 * For each descriptor added, the #GstMultiHandleSink::client-added signal will be called.
33 * A client can also be added with the #GstMultiHandleSink::add-full signal
34 * that allows for more control over what and how much data a client
37 * Clients can be removed from multihandlesink by emitting the #GstMultiHandleSink::remove signal. For
38 * each descriptor removed, the #GstMultiHandleSink::client-removed signal will be called. The
39 * #GstMultiHandleSink::client-removed signal can also be fired when multihandlesink decides that a
40 * client is not active anymore or, depending on the value of the
41 * #GstMultiHandleSink:recover-policy property, if the client is reading too slowly.
42 * In all cases, multihandlesink will never close a file descriptor itself.
43 * The user of multihandlesink is responsible for closing all file descriptors.
44 * This can for example be done in response to the #GstMultiHandleSink::client-fd-removed signal.
45 * Note that multihandlesink still has a reference to the file descriptor when the
46 * #GstMultiHandleSink::client-removed signal is emitted, so that "get-stats" can be performed on
47 * the descriptor; it is therefore not safe to close the file descriptor in
48 * the #GstMultiHandleSink::client-removed signal handler, and you should use the
49 * #GstMultiHandleSink::client-fd-removed signal to safely close the fd.
51 * Multisocketsink internally keeps a queue of the incoming buffers and uses a
52 * separate thread to send the buffers to the clients. This ensures that no
53 * client write can block the pipeline and that clients can read with different
56 * When adding a client to multihandlesink, the #GstMultiHandleSink:sync-method property will define
57 * which buffer in the queued buffers will be sent first to the client. Clients
58 * can be sent the most recent buffer (which might not be decodable by the
59 * client if it is not a keyframe), the next keyframe received in
60 * multihandlesink (which can take some time depending on the keyframe rate), or the
61 * last received keyframe (which will cause a simple burst-on-connect).
62 * Multisocketsink will always keep at least one keyframe in its internal buffers
63 * when the sync-mode is set to latest-keyframe.
65 * There are additional values for the #GstMultiHandleSink:sync-method
66 * property to allow finer control over burst-on-connect behaviour. By selecting
67 * the 'burst' method a minimum burst size can be chosen, 'burst-keyframe'
68 * additionally requires that the burst begin with a keyframe, and
69 * 'burst-with-keyframe' attempts to burst beginning with a keyframe, but will
70 * prefer a minimum burst size even if it requires not starting with a keyframe.
72 * Multisocketsink can be instructed to keep at least a minimum amount of data
73 * expressed in time or byte units in its internal queues with the
74 * #GstMultiHandleSink:time-min and #GstMultiHandleSink:bytes-min properties respectively.
75 * These properties are useful if the application adds clients with the
76 * #GstMultiHandleSink::add-full signal to make sure that a burst connect can
77 * actually be honored.
79 * When streaming data, clients are allowed to read at a different rate than
80 * the rate at which multihandlesink receives data. If the client is reading too
81 * fast, no data will be send to the client until multihandlesink receives more
82 * data. If the client, however, reads too slowly, data for that client will be
83 * queued up in multihandlesink. Two properties control the amount of data
84 * (buffers) that is queued in multihandlesink: #GstMultiHandleSink:buffers-max and
85 * #GstMultiHandleSink:buffers-soft-max. A client that falls behind by
86 * #GstMultiHandleSink:buffers-max is removed from multihandlesink forcibly.
88 * A client with a lag of at least #GstMultiHandleSink:buffers-soft-max enters the recovery
89 * procedure which is controlled with the #GstMultiHandleSink:recover-policy property.
90 * A recover policy of NONE will do nothing, RESYNC_LATEST will send the most recently
91 * received buffer as the next buffer for the client, RESYNC_SOFT_LIMIT
92 * positions the client to the soft limit in the buffer queue and
93 * RESYNC_KEYFRAME positions the client at the most recent keyframe in the
96 * multihandlesink will by default synchronize on the clock before serving the
97 * buffers to the clients. This behaviour can be disabled by setting the sync
98 * property to FALSE. Multisocketsink will by default not do QoS and will never
106 #include <gst/gst-i18n-plugin.h>
108 #include "gstmultihandlesink.h"
110 #ifdef HAVE_SYS_SOCKET_H
111 #include <sys/socket.h>
115 #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,
204 gst_multi_handle_sink_recover_policy_get_type (void)
206 static GType recover_policy_type = 0;
207 static const GEnumValue recover_policy[] = {
208 {GST_RECOVER_POLICY_NONE,
209 "Do not try to recover", "none"},
210 {GST_RECOVER_POLICY_RESYNC_LATEST,
211 "Resync client to latest buffer", "latest"},
212 {GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT,
213 "Resync client to soft limit", "soft-limit"},
214 {GST_RECOVER_POLICY_RESYNC_KEYFRAME,
215 "Resync client to most recent keyframe", "keyframe"},
219 if (!recover_policy_type) {
220 recover_policy_type =
221 g_enum_register_static ("GstMultiHandleSinkRecoverPolicy",
224 return recover_policy_type;
228 gst_multi_handle_sink_sync_method_get_type (void)
230 static GType sync_method_type = 0;
231 static const GEnumValue sync_method[] = {
232 {GST_SYNC_METHOD_LATEST,
233 "Serve starting from the latest buffer", "latest"},
234 {GST_SYNC_METHOD_NEXT_KEYFRAME,
235 "Serve starting from the next keyframe", "next-keyframe"},
236 {GST_SYNC_METHOD_LATEST_KEYFRAME,
237 "Serve everything since the latest keyframe (burst)",
239 {GST_SYNC_METHOD_BURST, "Serve burst-value data to client", "burst"},
240 {GST_SYNC_METHOD_BURST_KEYFRAME,
241 "Serve burst-value data starting on a keyframe",
243 {GST_SYNC_METHOD_BURST_WITH_KEYFRAME,
244 "Serve burst-value data preferably starting on a keyframe",
245 "burst-with-keyframe"},
249 if (!sync_method_type) {
251 g_enum_register_static ("GstMultiHandleSinkSyncMethod", sync_method);
253 return sync_method_type;
257 gst_multi_handle_sink_client_status_get_type (void)
259 static GType client_status_type = 0;
260 static const GEnumValue client_status[] = {
261 {GST_CLIENT_STATUS_OK, "ok", "ok"},
262 {GST_CLIENT_STATUS_CLOSED, "Closed", "closed"},
263 {GST_CLIENT_STATUS_REMOVED, "Removed", "removed"},
264 {GST_CLIENT_STATUS_SLOW, "Too slow", "slow"},
265 {GST_CLIENT_STATUS_ERROR, "Error", "error"},
266 {GST_CLIENT_STATUS_DUPLICATE, "Duplicate", "duplicate"},
267 {GST_CLIENT_STATUS_FLUSHING, "Flushing", "flushing"},
271 if (!client_status_type) {
273 g_enum_register_static ("GstMultiHandleSinkClientStatus",
276 return client_status_type;
279 static void gst_multi_handle_sink_finalize (GObject * object);
280 static void gst_multi_handle_sink_clear (GstMultiHandleSink * mhsink);
282 static GstFlowReturn gst_multi_handle_sink_render (GstBaseSink * bsink,
284 static void gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
286 static gboolean gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink *
287 mhsink, GstMultiHandleClient * mhclient, GstBuffer * buffer);
288 static GstStateChangeReturn gst_multi_handle_sink_change_state (GstElement *
289 element, GstStateChange transition);
291 static void gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
292 const GValue * value, GParamSpec * pspec);
293 static void gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
294 GValue * value, GParamSpec * pspec);
296 #define gst_multi_handle_sink_parent_class parent_class
297 G_DEFINE_TYPE (GstMultiHandleSink, gst_multi_handle_sink, GST_TYPE_BASE_SINK);
299 static guint gst_multi_handle_sink_signals[LAST_SIGNAL] = { 0 };
302 find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction);
303 #define find_next_syncframe(s,i) find_syncframe(s,i,1)
304 #define find_prev_syncframe(s,i) find_syncframe(s,i,-1)
305 static gboolean is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer);
306 static gboolean gst_multi_handle_sink_stop (GstBaseSink * bsink);
307 static gboolean gst_multi_handle_sink_start (GstBaseSink * bsink);
308 static gint get_buffers_max (GstMultiHandleSink * sink, gint64 max);
310 gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
311 GstMultiHandleClient * client);
312 static void gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink);
314 find_limits (GstMultiHandleSink * sink,
315 gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
316 gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max);
320 gst_multi_handle_sink_class_init (GstMultiHandleSinkClass * klass)
322 GObjectClass *gobject_class;
323 GstElementClass *gstelement_class;
324 GstBaseSinkClass *gstbasesink_class;
326 gobject_class = (GObjectClass *) klass;
327 gstelement_class = (GstElementClass *) klass;
328 gstbasesink_class = (GstBaseSinkClass *) klass;
330 gobject_class->set_property = gst_multi_handle_sink_set_property;
331 gobject_class->get_property = gst_multi_handle_sink_get_property;
332 gobject_class->finalize = gst_multi_handle_sink_finalize;
334 g_object_class_install_property (gobject_class, PROP_BUFFERS_MAX,
335 g_param_spec_int ("buffers-max", "Buffers max",
336 "max number of buffers to queue for a client (-1 = no limit)", -1,
337 G_MAXINT, DEFAULT_BUFFERS_MAX,
338 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
339 g_object_class_install_property (gobject_class, PROP_BUFFERS_SOFT_MAX,
340 g_param_spec_int ("buffers-soft-max", "Buffers soft max",
341 "Recover client when going over this limit (-1 = no limit)", -1,
342 G_MAXINT, DEFAULT_BUFFERS_SOFT_MAX,
343 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
345 g_object_class_install_property (gobject_class, PROP_BYTES_MIN,
346 g_param_spec_int ("bytes-min", "Bytes min",
347 "min number of bytes to queue (-1 = as little as possible)", -1,
348 G_MAXINT, DEFAULT_BYTES_MIN,
349 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
350 g_object_class_install_property (gobject_class, PROP_TIME_MIN,
351 g_param_spec_int64 ("time-min", "Time min",
352 "min amount of time to queue (in nanoseconds) "
353 "(-1 = as little as possible)", -1, G_MAXINT64, DEFAULT_TIME_MIN,
354 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
355 g_object_class_install_property (gobject_class, PROP_BUFFERS_MIN,
356 g_param_spec_int ("buffers-min", "Buffers min",
357 "min number of buffers to queue (-1 = as few as possible)", -1,
358 G_MAXINT, DEFAULT_BUFFERS_MIN,
359 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
361 g_object_class_install_property (gobject_class, PROP_UNIT_FORMAT,
362 g_param_spec_enum ("unit-format", "Units format",
363 "The unit to measure the max/soft-max/queued properties",
364 GST_TYPE_FORMAT, DEFAULT_UNIT_FORMAT,
365 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
366 g_object_class_install_property (gobject_class, PROP_UNITS_MAX,
367 g_param_spec_int64 ("units-max", "Units max",
368 "max number of units to queue (-1 = no limit)", -1, G_MAXINT64,
369 DEFAULT_UNITS_MAX, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
370 g_object_class_install_property (gobject_class, PROP_UNITS_SOFT_MAX,
371 g_param_spec_int64 ("units-soft-max", "Units soft max",
372 "Recover client when going over this limit (-1 = no limit)", -1,
373 G_MAXINT64, DEFAULT_UNITS_SOFT_MAX,
374 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
376 g_object_class_install_property (gobject_class, PROP_BUFFERS_QUEUED,
377 g_param_spec_uint ("buffers-queued", "Buffers queued",
378 "Number of buffers currently queued", 0, G_MAXUINT, 0,
379 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
381 g_object_class_install_property (gobject_class, PROP_BYTES_QUEUED,
382 g_param_spec_uint ("bytes-queued", "Bytes queued",
383 "Number of bytes currently queued", 0, G_MAXUINT, 0,
384 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
385 g_object_class_install_property (gobject_class, PROP_TIME_QUEUED,
386 g_param_spec_uint64 ("time-queued", "Time queued",
387 "Amount of time currently queued (in nanoseconds)", 0, G_MAXUINT64, 0,
388 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
391 g_object_class_install_property (gobject_class, PROP_RECOVER_POLICY,
392 g_param_spec_enum ("recover-policy", "Recover Policy",
393 "How to recover when client reaches the soft max",
394 GST_TYPE_RECOVER_POLICY, DEFAULT_RECOVER_POLICY,
395 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
396 g_object_class_install_property (gobject_class, PROP_TIMEOUT,
397 g_param_spec_uint64 ("timeout", "Timeout",
398 "Maximum inactivity timeout in nanoseconds for a client (0 = no limit)",
399 0, G_MAXUINT64, DEFAULT_TIMEOUT,
400 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
401 g_object_class_install_property (gobject_class, PROP_SYNC_METHOD,
402 g_param_spec_enum ("sync-method", "Sync Method",
403 "How to sync new clients to the stream", GST_TYPE_SYNC_METHOD,
404 DEFAULT_SYNC_METHOD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
405 g_object_class_install_property (gobject_class, PROP_BYTES_TO_SERVE,
406 g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
407 "Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
408 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
409 g_object_class_install_property (gobject_class, PROP_BYTES_SERVED,
410 g_param_spec_uint64 ("bytes-served", "Bytes served",
411 "Total number of bytes send to all clients", 0, G_MAXUINT64, 0,
412 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
414 g_object_class_install_property (gobject_class, PROP_BURST_FORMAT,
415 g_param_spec_enum ("burst-format", "Burst format",
416 "The format of the burst units (when sync-method is burst[[-with]-keyframe])",
417 GST_TYPE_FORMAT, DEFAULT_BURST_FORMAT,
418 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
419 g_object_class_install_property (gobject_class, PROP_BURST_VALUE,
420 g_param_spec_uint64 ("burst-value", "Burst value",
421 "The amount of burst expressed in burst-format", 0, G_MAXUINT64,
422 DEFAULT_BURST_VALUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
424 g_object_class_install_property (gobject_class, PROP_QOS_DSCP,
425 g_param_spec_int ("qos-dscp", "QoS diff srv code point",
426 "Quality of Service, differentiated services code point (-1 default)",
427 -1, 63, DEFAULT_QOS_DSCP,
428 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
431 * GstMultiHandleSink::resend-streamheader
433 * Resend the streamheaders to existing clients when they change.
435 g_object_class_install_property (gobject_class, PROP_RESEND_STREAMHEADER,
436 g_param_spec_boolean ("resend-streamheader", "Resend streamheader",
437 "Resend the streamheader if it changes in the caps",
438 DEFAULT_RESEND_STREAMHEADER,
439 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
441 g_object_class_install_property (gobject_class, PROP_NUM_HANDLES,
442 g_param_spec_uint ("num-handles", "Number of handles",
443 "The current number of client handles",
444 0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
447 * GstMultiHandleSink::clear:
448 * @gstmultihandlesink: the multihandlesink element to emit this signal on
450 * Remove all sockets from multihandlesink. Since multihandlesink did not
451 * open sockets itself, it does not explicitly close the sockets. The application
452 * should do so by connecting to the client-socket-removed callback.
454 gst_multi_handle_sink_signals[SIGNAL_CLEAR] =
455 g_signal_new ("clear", G_TYPE_FROM_CLASS (klass),
456 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
457 G_STRUCT_OFFSET (GstMultiHandleSinkClass, clear), NULL, NULL,
458 NULL, G_TYPE_NONE, 0);
460 gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
462 gst_element_class_set_static_metadata (gstelement_class,
463 "Multi socket sink", "Sink/Network",
464 "Send data to multiple sockets",
465 "Thomas Vander Stichele <thomas at apestaart dot org>, "
466 "Wim Taymans <wim@fluendo.com>, "
467 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
469 gstelement_class->change_state =
470 GST_DEBUG_FUNCPTR (gst_multi_handle_sink_change_state);
472 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_render);
473 klass->client_queue_buffer =
474 GST_DEBUG_FUNCPTR (gst_multi_handle_sink_client_queue_buffer);
477 klass->add = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add);
478 klass->add_full = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add_full);
479 klass->remove = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove);
480 klass->remove_flush = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove_flush);
483 klass->clear = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_clear);
485 GST_DEBUG_CATEGORY_INIT (multihandlesink_debug, "multihandlesink", 0,
486 "Multi socket sink");
488 gst_type_mark_as_plugin_api (GST_TYPE_RECOVER_POLICY, 0);
489 gst_type_mark_as_plugin_api (GST_TYPE_SYNC_METHOD, 0);
490 gst_type_mark_as_plugin_api (GST_TYPE_CLIENT_STATUS, 0);
494 gst_multi_handle_sink_init (GstMultiHandleSink * this)
496 GST_OBJECT_FLAG_UNSET (this, GST_MULTI_HANDLE_SINK_OPEN);
498 CLIENTS_LOCK_INIT (this);
499 this->clients = NULL;
501 this->bufqueue = g_array_new (FALSE, TRUE, sizeof (GstBuffer *));
502 this->unit_format = DEFAULT_UNIT_FORMAT;
503 this->units_max = DEFAULT_UNITS_MAX;
504 this->units_soft_max = DEFAULT_UNITS_SOFT_MAX;
505 this->time_min = DEFAULT_TIME_MIN;
506 this->bytes_min = DEFAULT_BYTES_MIN;
507 this->buffers_min = DEFAULT_BUFFERS_MIN;
508 this->recover_policy = DEFAULT_RECOVER_POLICY;
510 this->timeout = DEFAULT_TIMEOUT;
511 this->def_sync_method = DEFAULT_SYNC_METHOD;
513 this->def_burst_format = DEFAULT_BURST_FORMAT;
514 this->def_burst_value = DEFAULT_BURST_VALUE;
516 this->qos_dscp = DEFAULT_QOS_DSCP;
518 this->resend_streamheader = DEFAULT_RESEND_STREAMHEADER;
522 gst_multi_handle_sink_finalize (GObject * object)
524 GstMultiHandleSink *this;
526 this = GST_MULTI_HANDLE_SINK (object);
528 CLIENTS_LOCK_CLEAR (this);
529 g_array_free (this->bufqueue, TRUE);
530 g_hash_table_destroy (this->handle_hash);
532 G_OBJECT_CLASS (parent_class)->finalize (object);
536 gst_multi_handle_sink_setup_dscp_client (GstMultiHandleSink * sink,
537 GstMultiHandleClient * client)
539 #if !defined(IP_TOS) || !defined(HAVE_SYS_SOCKET_H)
548 struct sockaddr_in6 sa_in6;
549 struct sockaddr_storage sa_stor;
551 socklen_t slen = sizeof (sa);
553 GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
556 if (sink->qos_dscp < 0)
559 fd = mhsinkclass->client_get_fd (client);
561 if ((ret = getsockname (fd, &sa.sa, &slen)) < 0) {
562 GST_DEBUG_OBJECT (sink, "could not get sockname: %s", g_strerror (errno));
566 af = sa.sa.sa_family;
568 /* if this is an IPv4-mapped address then do IPv4 QoS */
569 if (af == AF_INET6) {
571 GST_DEBUG_OBJECT (sink, "check IP6 socket");
572 if (IN6_IS_ADDR_V4MAPPED (&(sa.sa_in6.sin6_addr))) {
573 GST_DEBUG_OBJECT (sink, "mapped to IPV4");
578 /* extract and shift 6 bits of the DSCP */
579 tos = (sink->qos_dscp & 0x3f) << 2;
583 ret = setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos));
587 ret = setsockopt (fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof (tos));
592 GST_ERROR_OBJECT (sink, "unsupported AF");
596 GST_DEBUG_OBJECT (sink, "could not set DSCP: %s", g_strerror (errno));
603 gst_multi_handle_sink_client_init (GstMultiHandleClient * client,
604 GstSyncMethod sync_method)
606 client->status = GST_CLIENT_STATUS_OK;
608 client->flushcount = -1;
609 client->bufoffset = 0;
610 client->sending = NULL;
611 client->bytes_sent = 0;
612 client->dropped_buffers = 0;
613 client->avg_queue_size = 0;
614 client->first_buffer_ts = GST_CLOCK_TIME_NONE;
615 client->last_buffer_ts = GST_CLOCK_TIME_NONE;
616 client->new_connection = TRUE;
617 client->sync_method = sync_method;
618 client->currently_removing = FALSE;
620 /* update start time */
621 client->connect_time = g_get_real_time () * GST_USECOND;
622 client->disconnect_time = 0;
623 /* set last activity time to connect time */
624 client->last_activity_time = client->connect_time;
628 gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink)
632 CLIENTS_LOCK (mhsink);
633 for (clients = mhsink->clients; clients; clients = clients->next) {
634 GstMultiHandleClient *client;
636 client = clients->data;
638 gst_multi_handle_sink_setup_dscp_client (mhsink, client);
640 CLIENTS_UNLOCK (mhsink);
644 gst_multi_handle_sink_add_full (GstMultiHandleSink * sink,
645 GstMultiSinkHandle handle, GstSyncMethod sync_method, GstFormat min_format,
646 guint64 min_value, GstFormat max_format, guint64 max_value)
648 GstMultiHandleClient *mhclient;
650 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
652 GstMultiHandleSinkClass *mhsinkclass =
653 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
655 if (!sink->running) {
656 g_warning ("Element %s must be set to READY, PAUSED or PLAYING state "
657 "before clients can be added", GST_OBJECT_NAME (sink));
661 mhsinkclass->handle_debug (handle, debug);
662 GST_DEBUG_OBJECT (sink, "%s adding client, sync_method %d, "
663 "min_format %d, min_value %" G_GUINT64_FORMAT
664 ", max_format %d, max_value %" G_GUINT64_FORMAT, debug,
665 sync_method, min_format, min_value, max_format, max_value);
667 /* do limits check if we can */
668 if (min_format == max_format) {
669 if (max_value != -1 && min_value != -1 && max_value < min_value)
675 /* check the hash to find a duplicate handle */
676 clink = g_hash_table_lookup (mhsink->handle_hash,
677 mhsinkclass->handle_hash_key (handle));
681 /* We do not take ownership of @handle in this function, but we can't take a
682 * reference directly as we don't know the concrete type of the handle.
683 * GstMultiHandleSink relies on the derived class to take a reference for us
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) {
887 interval = (g_get_real_time () * GST_USECOND) - mhclient->connect_time;
889 interval = mhclient->disconnect_time - mhclient->connect_time;
892 gst_structure_set (result,
893 "bytes-sent", G_TYPE_UINT64, mhclient->bytes_sent,
894 "connect-time", G_TYPE_UINT64, mhclient->connect_time,
895 "disconnect-time", G_TYPE_UINT64, mhclient->disconnect_time,
896 "connect-duration", G_TYPE_UINT64, interval,
897 "last-activity-time", G_TYPE_UINT64, mhclient->last_activity_time,
898 "buffers-dropped", G_TYPE_UINT64, mhclient->dropped_buffers,
899 "first-buffer-ts", G_TYPE_UINT64, mhclient->first_buffer_ts,
900 "last-buffer-ts", G_TYPE_UINT64, mhclient->last_buffer_ts, NULL);
904 CLIENTS_UNLOCK (sink);
906 /* python doesn't like a NULL pointer yet */
907 if (result == NULL) {
908 GST_WARNING_OBJECT (sink, "%s no client with this found!", debug);
909 result = gst_structure_new_empty ("multihandlesink-stats");
915 /* should be called with the clientslock held.
916 * Note that we don't close the fd as we didn't open it in the first
917 * place. An application should connect to the client-fd-removed signal and
918 * close the fd itself.
921 gst_multi_handle_sink_remove_client_link (GstMultiHandleSink * sink,
924 GstMultiHandleClient *mhclient = (GstMultiHandleClient *) link->data;
925 GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
927 if (mhclient->currently_removing) {
928 GST_WARNING_OBJECT (sink, "%s client is already being removed",
932 mhclient->currently_removing = TRUE;
935 /* FIXME: if we keep track of ip we can log it here and signal */
936 switch (mhclient->status) {
937 case GST_CLIENT_STATUS_OK:
938 GST_WARNING_OBJECT (sink, "%s removing client %p for no reason",
939 mhclient->debug, mhclient);
941 case GST_CLIENT_STATUS_CLOSED:
942 GST_DEBUG_OBJECT (sink, "%s removing client %p because of close",
943 mhclient->debug, mhclient);
945 case GST_CLIENT_STATUS_REMOVED:
946 GST_DEBUG_OBJECT (sink,
947 "%s removing client %p because the app removed it", mhclient->debug,
950 case GST_CLIENT_STATUS_SLOW:
951 GST_INFO_OBJECT (sink,
952 "%s removing client %p because it was too slow", mhclient->debug,
955 case GST_CLIENT_STATUS_ERROR:
956 GST_WARNING_OBJECT (sink,
957 "%s removing client %p because of error", mhclient->debug, mhclient);
959 case GST_CLIENT_STATUS_FLUSHING:
961 GST_WARNING_OBJECT (sink,
962 "%s removing client %p with invalid reason %d", mhclient->debug,
963 mhclient, mhclient->status);
967 mhsinkclass->hash_removing (sink, mhclient);
969 mhclient->disconnect_time = g_get_real_time () * GST_USECOND;
971 /* free client buffers */
972 g_slist_foreach (mhclient->sending, (GFunc) gst_mini_object_unref, NULL);
973 g_slist_free (mhclient->sending);
974 mhclient->sending = NULL;
977 gst_caps_unref (mhclient->caps);
978 mhclient->caps = NULL;
980 /* unlock the mutex before signaling because the signal handler
981 * might query some properties */
982 CLIENTS_UNLOCK (sink);
984 mhsinkclass->emit_client_removed (sink, mhclient->handle, mhclient->status);
986 /* lock again before we remove the client completely */
989 /* handle cannot be reused in the above signal callback so we can safely
990 * remove it from the hashtable here */
991 if (!g_hash_table_remove (sink->handle_hash,
992 mhsinkclass->handle_hash_key (mhclient->handle))) {
993 GST_WARNING_OBJECT (sink,
994 "%s error removing client %p from hash", mhclient->debug, mhclient);
996 /* after releasing the lock above, the link could be invalid, more
997 * precisely, the next and prev pointers could point to invalid list
998 * links. One optimisation could be to add a cookie to the linked list
999 * and take a shortcut when it did not change between unlocking and locking
1000 * our mutex. For now we just walk the list again. */
1001 sink->clients = g_list_remove (sink->clients, mhclient);
1002 sink->clients_cookie++;
1004 if (mhsinkclass->removed)
1005 mhsinkclass->removed (sink, mhclient->handle);
1007 CLIENTS_UNLOCK (sink);
1009 /* sub-class must implement this to emit the client-$handle-removed signal */
1010 g_assert (mhsinkclass->client_free != NULL);
1012 /* and the handle is really gone now */
1013 mhsinkclass->client_free (sink, mhclient);
1017 CLIENTS_LOCK (sink);
1021 gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink * mhsink,
1022 GstMultiHandleClient * mhclient, GstBuffer * buffer)
1024 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
1027 /* TRUE: send them if the new caps have them */
1028 gboolean send_streamheader = FALSE;
1031 /* before we queue the buffer, we check if we need to queue streamheader
1032 * buffers (because it's a new client, or because they changed) */
1033 caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
1035 if (!mhclient->caps) {
1037 GST_DEBUG_OBJECT (sink,
1038 "%s no previous caps for this client, send streamheader",
1040 send_streamheader = TRUE;
1041 mhclient->caps = gst_caps_ref (caps);
1044 /* there were previous caps recorded, so compare */
1045 if (!gst_caps_is_equal (caps, mhclient->caps)) {
1046 const GValue *sh1, *sh2;
1048 /* caps are not equal, but could still have the same streamheader */
1049 s = gst_caps_get_structure (caps, 0);
1050 if (!gst_structure_has_field (s, "streamheader")) {
1051 /* no new streamheader, so nothing new to send */
1052 GST_DEBUG_OBJECT (sink,
1053 "%s new caps do not have streamheader, not sending",
1056 /* there is a new streamheader */
1057 s = gst_caps_get_structure (mhclient->caps, 0);
1058 if (!gst_structure_has_field (s, "streamheader")) {
1059 /* no previous streamheader, so send the new one */
1060 GST_DEBUG_OBJECT (sink,
1061 "%s previous caps did not have streamheader, sending",
1063 send_streamheader = TRUE;
1065 /* both old and new caps have streamheader set */
1066 if (!mhsink->resend_streamheader) {
1067 GST_DEBUG_OBJECT (sink,
1068 "%s asked to not resend the streamheader, not sending",
1070 send_streamheader = FALSE;
1072 sh1 = gst_structure_get_value (s, "streamheader");
1073 s = gst_caps_get_structure (caps, 0);
1074 sh2 = gst_structure_get_value (s, "streamheader");
1075 if (gst_value_compare (sh1, sh2) != GST_VALUE_EQUAL) {
1076 GST_DEBUG_OBJECT (sink,
1077 "%s new streamheader different from old, sending",
1079 send_streamheader = TRUE;
1085 /* Replace the old caps */
1086 gst_caps_replace (&mhclient->caps, caps);
1089 if (G_UNLIKELY (send_streamheader)) {
1094 GST_LOG_OBJECT (sink,
1095 "%s sending streamheader from caps %" GST_PTR_FORMAT,
1096 mhclient->debug, caps);
1097 s = gst_caps_get_structure (caps, 0);
1098 if (!gst_structure_has_field (s, "streamheader")) {
1099 GST_DEBUG_OBJECT (sink,
1100 "%s no new streamheader, so nothing to send", mhclient->debug);
1102 GST_LOG_OBJECT (sink,
1103 "%s sending streamheader from caps %" GST_PTR_FORMAT,
1104 mhclient->debug, caps);
1105 sh = gst_structure_get_value (s, "streamheader");
1106 g_assert (G_VALUE_TYPE (sh) == GST_TYPE_ARRAY);
1107 buffers = g_value_peek_pointer (sh);
1108 GST_DEBUG_OBJECT (sink, "%d streamheader buffers", buffers->len);
1109 for (i = 0; i < buffers->len; ++i) {
1113 bufval = &g_array_index (buffers, GValue, i);
1114 g_assert (G_VALUE_TYPE (bufval) == GST_TYPE_BUFFER);
1115 buffer = g_value_peek_pointer (bufval);
1116 GST_DEBUG_OBJECT (sink,
1117 "%s queueing streamheader buffer of length %" G_GSIZE_FORMAT,
1118 mhclient->debug, gst_buffer_get_size (buffer));
1119 gst_buffer_ref (buffer);
1121 mhclient->sending = g_slist_append (mhclient->sending, buffer);
1127 gst_caps_unref (caps);
1130 GST_LOG_OBJECT (sink, "%s queueing buffer of length %" G_GSIZE_FORMAT,
1131 mhclient->debug, gst_buffer_get_size (buffer));
1133 gst_buffer_ref (buffer);
1134 mhclient->sending = g_slist_append (mhclient->sending, buffer);
1140 is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer)
1142 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1147 /* find the keyframe in the list of buffers starting the
1148 * search from @idx. @direction as -1 will search backwards,
1149 * 1 will search forwards.
1150 * Returns: the index or -1 if there is no keyframe after idx.
1153 find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction)
1155 gint i, len, result;
1157 /* take length of queued buffers */
1158 len = sink->bufqueue->len;
1160 /* assume we don't find a keyframe */
1163 /* then loop over all buffers to find the first keyframe */
1164 for (i = idx; i >= 0 && i < len; i += direction) {
1167 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1168 if (is_sync_frame (sink, buf)) {
1169 GST_LOG_OBJECT (sink, "found keyframe at %d from %d, direction %d",
1178 /* Get the number of buffers from the buffer queue needed to satisfy
1179 * the maximum max in the configured units.
1180 * If units are not BUFFERS, and there are insufficient buffers in the
1181 * queue to satisfy the limit, return len(queue) + 1 */
1183 get_buffers_max (GstMultiHandleSink * sink, gint64 max)
1185 switch (sink->unit_format) {
1186 case GST_FORMAT_BUFFERS:
1188 case GST_FORMAT_TIME:
1194 GstClockTime first = GST_CLOCK_TIME_NONE;
1196 len = sink->bufqueue->len;
1198 for (i = 0; i < len; i++) {
1199 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1200 if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
1202 first = GST_BUFFER_TIMESTAMP (buf);
1204 diff = first - GST_BUFFER_TIMESTAMP (buf);
1212 case GST_FORMAT_BYTES:
1219 len = sink->bufqueue->len;
1221 for (i = 0; i < len; i++) {
1222 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1223 acc += gst_buffer_get_size (buf);
1235 /* find the positions in the buffer queue where *_min and *_max
1238 /* count the amount of data in the buffers and return the index
1239 * that satisfies the given limits.
1241 * Returns: index @idx in the buffer queue so that the given limits are
1242 * satisfied. TRUE if all the limits could be satisfied, FALSE if not
1243 * enough data was in the queue.
1245 * FIXME, this code might now work if any of the units is in buffers...
1248 find_limits (GstMultiHandleSink * sink,
1249 gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
1250 gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max)
1252 GstClockTime first, time;
1254 gboolean result, max_hit;
1256 /* take length of queue */
1257 len = sink->bufqueue->len;
1259 /* this must hold */
1262 GST_LOG_OBJECT (sink,
1263 "bytes_min %d, buffers_min %d, time_min %" GST_TIME_FORMAT
1264 ", bytes_max %d, buffers_max %d, time_max %" GST_TIME_FORMAT, bytes_min,
1265 buffers_min, GST_TIME_ARGS (time_min), bytes_max, buffers_max,
1266 GST_TIME_ARGS (time_max));
1268 /* do the trivial buffer limit test */
1269 if (buffers_min != -1 && len < buffers_min) {
1276 /* else count bytes and time */
1285 /* loop through the buffers, when a limit is ok, mark it
1286 * as -1, we have at least one buffer in the queue. */
1290 /* if we checked all min limits, update result */
1291 if (bytes_min == -1 && time_min == -1 && *min_idx == -1) {
1292 /* don't go below 0 */
1293 *min_idx = MAX (i - 1, 0);
1295 /* if we reached one max limit break out */
1297 /* i > 0 when we get here, we subtract one to get the position
1298 * of the previous buffer. */
1300 /* we have valid complete result if we found a min_idx too */
1301 result = *min_idx != -1;
1304 buf = g_array_index (sink->bufqueue, GstBuffer *, i);
1306 bytes += gst_buffer_get_size (buf);
1308 /* take timestamp and save for the base first timestamp */
1309 if ((time = GST_BUFFER_TIMESTAMP (buf)) != -1) {
1310 GST_LOG_OBJECT (sink, "Ts %" GST_TIME_FORMAT " on buffer",
1311 GST_TIME_ARGS (time));
1315 /* increase max usage if we did not fill enough. Note that
1316 * buffers are sorted from new to old, so the first timestamp is
1317 * bigger than the next one. */
1318 if (time_min != -1 && first - time >= time_min)
1320 if (time_max != -1 && first - time >= time_max)
1323 GST_LOG_OBJECT (sink, "No timestamp on buffer");
1325 /* time is OK or unknown, check and increase if not enough bytes */
1326 if (bytes_min != -1) {
1327 if (bytes >= bytes_min)
1330 if (bytes_max != -1) {
1331 if (bytes >= bytes_max) {
1339 /* if we did not hit the max or min limit, set to buffer size */
1342 /* make sure min does not exceed max */
1344 *min_idx = *max_idx;
1349 /* parse the unit/value pair and assign it to the result value of the
1350 * right type, leave the other values untouched
1352 * Returns: FALSE if the unit is unknown or undefined. TRUE otherwise.
1355 assign_value (GstFormat format, guint64 value, gint * bytes, gint * buffers,
1356 GstClockTime * time)
1358 gboolean res = TRUE;
1360 /* set only the limit of the given format to the given value */
1362 case GST_FORMAT_BUFFERS:
1363 *buffers = (gint) value;
1365 case GST_FORMAT_TIME:
1368 case GST_FORMAT_BYTES:
1369 *bytes = (gint) value;
1371 case GST_FORMAT_UNDEFINED:
1379 /* count the index in the buffer queue to satisfy the given unit
1380 * and value pair starting from buffer at index 0.
1382 * Returns: TRUE if there was enough data in the queue to satisfy the
1383 * burst values. @idx contains the index in the buffer that contains enough
1384 * data to satisfy the limits or the last buffer in the queue when the
1385 * function returns FALSE.
1388 count_burst_unit (GstMultiHandleSink * sink, gint * min_idx,
1389 GstFormat min_format, guint64 min_value, gint * max_idx,
1390 GstFormat max_format, guint64 max_value)
1392 gint bytes_min = -1, buffers_min = -1;
1393 gint bytes_max = -1, buffers_max = -1;
1394 GstClockTime time_min = GST_CLOCK_TIME_NONE, time_max = GST_CLOCK_TIME_NONE;
1396 assign_value (min_format, min_value, &bytes_min, &buffers_min, &time_min);
1397 assign_value (max_format, max_value, &bytes_max, &buffers_max, &time_max);
1399 return find_limits (sink, min_idx, bytes_min, buffers_min, time_min,
1400 max_idx, bytes_max, buffers_max, time_max);
1403 /* decide where in the current buffer queue this new client should start
1404 * receiving buffers from.
1405 * This function is called whenever a client is connected and has not yet
1406 * received a buffer.
1407 * If this returns -1, it means that we haven't found a good point to
1408 * start streaming from yet, and this function should be called again later
1409 * when more buffers have arrived.
1412 gst_multi_handle_sink_new_client_position (GstMultiHandleSink * sink,
1413 GstMultiHandleClient * client)
1417 GST_DEBUG_OBJECT (sink,
1418 "%s new client, deciding where to start in queue", client->debug);
1419 GST_DEBUG_OBJECT (sink, "queue is currently %d buffers long",
1420 sink->bufqueue->len);
1421 switch (client->sync_method) {
1422 case GST_SYNC_METHOD_LATEST:
1423 /* no syncing, we are happy with whatever the client is going to get */
1424 result = client->bufpos;
1425 GST_DEBUG_OBJECT (sink,
1426 "%s SYNC_METHOD_LATEST, position %d", client->debug, result);
1428 case GST_SYNC_METHOD_NEXT_KEYFRAME:
1430 /* if one of the new buffers (between client->bufpos and 0) in the queue
1431 * is a sync point, we can proceed, otherwise we need to keep waiting */
1432 GST_LOG_OBJECT (sink,
1433 "%s new client, bufpos %d, waiting for keyframe",
1434 client->debug, client->bufpos);
1436 result = find_prev_syncframe (sink, client->bufpos);
1438 GST_DEBUG_OBJECT (sink,
1439 "%s SYNC_METHOD_NEXT_KEYFRAME: result %d", client->debug, result);
1443 /* client is not on a syncbuffer, need to skip these buffers and
1445 GST_LOG_OBJECT (sink,
1446 "%s new client, skipping buffer(s), no syncpoint found",
1448 client->bufpos = -1;
1451 case GST_SYNC_METHOD_LATEST_KEYFRAME:
1453 GST_DEBUG_OBJECT (sink, "%s SYNC_METHOD_LATEST_KEYFRAME", client->debug);
1455 /* for new clients we initially scan the complete buffer queue for
1456 * a sync point when a buffer is added. If we don't find a keyframe,
1457 * we need to wait for the next keyframe and so we change the client's
1458 * sync method to GST_SYNC_METHOD_NEXT_KEYFRAME.
1460 result = find_next_syncframe (sink, 0);
1462 GST_DEBUG_OBJECT (sink,
1463 "%s SYNC_METHOD_LATEST_KEYFRAME: result %d", client->debug, result);
1467 GST_DEBUG_OBJECT (sink,
1468 "%s SYNC_METHOD_LATEST_KEYFRAME: no keyframe found, "
1469 "switching to SYNC_METHOD_NEXT_KEYFRAME", client->debug);
1470 /* throw client to the waiting state */
1471 client->bufpos = -1;
1472 /* and make client sync to next keyframe */
1473 client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
1476 case GST_SYNC_METHOD_BURST:
1481 /* move to the position where we satisfy the client's burst
1482 * parameters. If we could not satisfy the parameters because there
1483 * is not enough data, we just send what we have (which is in result).
1484 * We use the max value to limit the search
1486 ok = count_burst_unit (sink, &result, client->burst_min_format,
1487 client->burst_min_value, &max, client->burst_max_format,
1488 client->burst_max_value);
1489 GST_DEBUG_OBJECT (sink,
1490 "%s SYNC_METHOD_BURST: burst_unit returned %d, result %d",
1491 client->debug, ok, result);
1493 GST_LOG_OBJECT (sink, "min %d, max %d", result, max);
1495 /* we hit the max and it is below the min, use that then */
1496 if (max != -1 && max <= result) {
1497 result = MAX (max - 1, 0);
1498 GST_DEBUG_OBJECT (sink,
1499 "%s SYNC_METHOD_BURST: result above max, taken down to %d",
1500 client->debug, result);
1504 case GST_SYNC_METHOD_BURST_KEYFRAME:
1506 gint min_idx, max_idx;
1507 gint next_syncframe, prev_syncframe;
1511 * _always_ start sending a keyframe to the client. We first search
1512 * a keyframe between min/max limits. If there is none, we send it the
1513 * last keyframe before min. If there is none, the behaviour is like
1516 /* gather burst limits */
1517 count_burst_unit (sink, &min_idx, client->burst_min_format,
1518 client->burst_min_value, &max_idx, client->burst_max_format,
1519 client->burst_max_value);
1521 GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
1523 /* first find a keyframe after min_idx */
1524 next_syncframe = find_next_syncframe (sink, min_idx);
1525 if (next_syncframe != -1 && next_syncframe < max_idx) {
1526 /* we have a valid keyframe and it's below the max */
1527 GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
1528 result = next_syncframe;
1532 /* no valid keyframe, try to find one below min */
1533 prev_syncframe = find_prev_syncframe (sink, min_idx);
1534 if (prev_syncframe != -1) {
1535 GST_WARNING_OBJECT (sink,
1536 "using keyframe below min in BURST_KEYFRAME sync mode");
1537 result = prev_syncframe;
1541 /* no prev keyframe or not enough data */
1542 GST_WARNING_OBJECT (sink,
1543 "no prev keyframe found in BURST_KEYFRAME sync mode, waiting for next");
1545 /* throw client to the waiting state */
1546 client->bufpos = -1;
1547 /* and make client sync to next keyframe */
1548 client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
1552 case GST_SYNC_METHOD_BURST_WITH_KEYFRAME:
1554 gint min_idx, max_idx;
1555 gint next_syncframe;
1557 /* BURST_WITH_KEYFRAME:
1559 * try to start sending a keyframe to the client. We first search
1560 * a keyframe between min/max limits. If there is none, we send it the
1561 * amount of data up 'till min.
1563 /* gather enough data to burst */
1564 count_burst_unit (sink, &min_idx, client->burst_min_format,
1565 client->burst_min_value, &max_idx, client->burst_max_format,
1566 client->burst_max_value);
1568 GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
1570 /* first find a keyframe after min_idx */
1571 next_syncframe = find_next_syncframe (sink, min_idx);
1572 if (next_syncframe != -1 && next_syncframe < max_idx) {
1573 /* we have a valid keyframe and it's below the max */
1574 GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
1575 result = next_syncframe;
1579 /* no keyframe, send data from min_idx */
1580 GST_WARNING_OBJECT (sink, "using min in BURST_WITH_KEYFRAME sync mode");
1582 /* make sure we don't go over the max limit */
1583 if (max_idx != -1 && max_idx <= min_idx) {
1584 result = MAX (max_idx - 1, 0);
1592 g_warning ("unknown sync method %d", client->sync_method);
1593 result = client->bufpos;
1599 /* calculate the new position for a client after recovery. This function
1600 * does not update the client position but merely returns the required
1604 gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
1605 GstMultiHandleClient * client)
1609 GST_WARNING_OBJECT (sink,
1610 "%s client %p is lagging at %d, recover using policy %d",
1611 client->debug, client, client->bufpos, sink->recover_policy);
1613 switch (sink->recover_policy) {
1614 case GST_RECOVER_POLICY_NONE:
1615 /* do nothing, client will catch up or get kicked out when it reaches
1617 newbufpos = client->bufpos;
1619 case GST_RECOVER_POLICY_RESYNC_LATEST:
1620 /* move to beginning of queue */
1623 case GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT:
1624 /* move to beginning of soft max */
1625 newbufpos = get_buffers_max (sink, sink->units_soft_max);
1627 case GST_RECOVER_POLICY_RESYNC_KEYFRAME:
1628 /* find keyframe in buffers, we search backwards to find the
1629 * closest keyframe relative to what this client already received. */
1630 newbufpos = MIN (sink->bufqueue->len - 1,
1631 get_buffers_max (sink, sink->units_soft_max) - 1);
1633 while (newbufpos >= 0) {
1636 buf = g_array_index (sink->bufqueue, GstBuffer *, newbufpos);
1637 if (is_sync_frame (sink, buf)) {
1638 /* found a buffer that is not a delta unit */
1645 /* unknown recovery procedure */
1646 newbufpos = get_buffers_max (sink, sink->units_soft_max);
1652 /* Queue a buffer on the global queue.
1654 * This function adds the buffer to the front of a GArray. It removes the
1655 * tail buffer if the max queue size is exceeded, unreffing the queued buffer.
1656 * Note that unreffing the buffer is not a problem as clients who
1657 * started writing out this buffer will still have a reference to it in the
1658 * mhclient->sending queue.
1660 * After adding the buffer, we update all client positions in the queue. If
1661 * a client moves over the soft max, we start the recovery procedure for this
1662 * slow client. If it goes over the hard max, it is put into the slow list
1665 * Special care is taken of clients that were waiting for a new buffer (they
1666 * had a position of -1) because they can proceed after adding this new buffer.
1667 * This is done by adding the client back into the write fd_set and signaling
1668 * the select thread that the fd_set changed.
1671 gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
1674 GList *clients, *next;
1676 gboolean hash_changed = FALSE;
1677 gint max_buffer_usage;
1680 gint max_buffers, soft_max_buffers;
1682 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
1683 GstMultiHandleSinkClass *mhsinkclass =
1684 GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
1686 CLIENTS_LOCK (mhsink);
1687 /* add buffer to queue */
1688 g_array_prepend_val (mhsink->bufqueue, buffer);
1689 queuelen = mhsink->bufqueue->len;
1691 if (mhsink->units_max > 0)
1692 max_buffers = get_buffers_max (mhsink, mhsink->units_max);
1696 if (mhsink->units_soft_max > 0)
1697 soft_max_buffers = get_buffers_max (mhsink, mhsink->units_soft_max);
1699 soft_max_buffers = -1;
1700 GST_LOG_OBJECT (sink, "Using max %d, softmax %d", max_buffers,
1703 /* then loop over the clients and update the positions */
1704 cookie = mhsink->clients_cookie;
1705 for (clients = mhsink->clients; clients; clients = clients->next) {
1706 GstMultiHandleClient *mhclient = clients->data;
1709 GST_LOG_OBJECT (sink, "%s client %p at position %d",
1710 mhclient->debug, mhclient, mhclient->bufpos);
1712 /* check soft max if needed, recover client */
1713 if (soft_max_buffers > 0 && mhclient->bufpos >= soft_max_buffers) {
1716 newpos = gst_multi_handle_sink_recover_client (mhsink, mhclient);
1717 if (newpos != mhclient->bufpos) {
1718 mhclient->dropped_buffers += mhclient->bufpos - newpos;
1719 mhclient->bufpos = newpos;
1720 mhclient->discont = TRUE;
1721 GST_INFO_OBJECT (sink, "%s client %p position reset to %d",
1722 mhclient->debug, mhclient, mhclient->bufpos);
1724 GST_INFO_OBJECT (sink,
1725 "%s client %p not recovering position", mhclient->debug, mhclient);
1730 max_buffer_usage = 0;
1731 now = g_get_real_time () * GST_USECOND;
1733 /* now check for new or slow clients */
1735 cookie = mhsink->clients_cookie;
1736 for (clients = mhsink->clients; clients; clients = next) {
1737 GstMultiHandleClient *mhclient = clients->data;
1739 if (cookie != mhsink->clients_cookie) {
1740 GST_DEBUG_OBJECT (sink, "Clients cookie outdated, restarting");
1744 next = g_list_next (clients);
1746 /* check hard max and timeout, remove client */
1747 if ((max_buffers > 0 && mhclient->bufpos >= max_buffers) ||
1748 (mhsink->timeout > 0
1749 && now - mhclient->last_activity_time > mhsink->timeout)) {
1751 GST_WARNING_OBJECT (sink, "%s client %p is too slow, removing",
1752 mhclient->debug, mhclient);
1753 /* remove the client, the handle set will be cleared and the select thread
1754 * will be signaled */
1755 mhclient->status = GST_CLIENT_STATUS_SLOW;
1756 /* set client to invalid position while being removed */
1757 mhclient->bufpos = -1;
1758 gst_multi_handle_sink_remove_client_link (mhsink, clients);
1759 hash_changed = TRUE;
1761 } else if (mhclient->bufpos == 0 || mhclient->new_connection) {
1762 /* can send data to this client now. need to signal the select thread that
1763 * the handle_set changed */
1764 mhsinkclass->hash_adding (mhsink, mhclient);
1765 hash_changed = TRUE;
1768 /* keep track of maximum buffer usage */
1769 if (mhclient->bufpos > max_buffer_usage) {
1770 max_buffer_usage = mhclient->bufpos;
1774 /* make sure we respect bytes-min, buffers-min and time-min when they are set */
1778 GST_LOG_OBJECT (sink,
1779 "extending queue %d to respect time_min %" GST_TIME_FORMAT
1780 ", bytes_min %d, buffers_min %d", max_buffer_usage,
1781 GST_TIME_ARGS (mhsink->time_min), mhsink->bytes_min,
1782 mhsink->buffers_min);
1784 /* get index where the limits are ok, we don't really care if all limits
1785 * are ok, we just queue as much as we need. We also don't compare against
1786 * the max limits. */
1787 find_limits (mhsink, &usage, mhsink->bytes_min, mhsink->buffers_min,
1788 mhsink->time_min, &max, -1, -1, -1);
1790 max_buffer_usage = MAX (max_buffer_usage, usage);
1791 GST_LOG_OBJECT (sink, "extended queue to %d", max_buffer_usage);
1794 /* now look for sync points and make sure there is at least one
1795 * sync point in the queue. We only do this if the LATEST_KEYFRAME or
1796 * BURST_KEYFRAME mode is selected */
1797 if (mhsink->def_sync_method == GST_SYNC_METHOD_LATEST_KEYFRAME ||
1798 mhsink->def_sync_method == GST_SYNC_METHOD_BURST_KEYFRAME) {
1799 /* no point in searching beyond the queue length */
1800 gint limit = queuelen;
1803 /* no point in searching beyond the soft-max if any. */
1804 if (soft_max_buffers > 0) {
1805 limit = MIN (limit, soft_max_buffers);
1807 GST_LOG_OBJECT (sink,
1808 "extending queue to include sync point, now at %d, limit is %d",
1809 max_buffer_usage, limit);
1810 for (i = 0; i < limit; i++) {
1811 buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
1812 if (is_sync_frame (mhsink, buf)) {
1813 /* found a sync frame, now extend the buffer usage to
1814 * include at least this frame. */
1815 max_buffer_usage = MAX (max_buffer_usage, i);
1819 GST_LOG_OBJECT (sink, "max buffer usage is now %d", max_buffer_usage);
1822 GST_LOG_OBJECT (sink, "len %d, usage %d", queuelen, max_buffer_usage);
1824 /* nobody is referencing units after max_buffer_usage so we can
1825 * remove them from the queue. We remove them in reverse order as
1826 * this is the most optimal for GArray. */
1827 for (i = queuelen - 1; i > max_buffer_usage; i--) {
1830 /* queue exceeded max size */
1832 old = g_array_index (mhsink->bufqueue, GstBuffer *, i);
1833 mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
1835 /* unref tail buffer */
1836 gst_buffer_unref (old);
1838 /* save for stats */
1839 mhsink->buffers_queued = max_buffer_usage + 1;
1840 CLIENTS_UNLOCK (sink);
1842 /* and send a signal to thread if handle_set changed */
1843 if (hash_changed && mhsinkclass->hash_changed) {
1844 mhsinkclass->hash_changed (mhsink);
1849 buffer_is_in_caps (GstMultiHandleSink * sink, GstBuffer * buf)
1855 caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
1858 s = gst_caps_get_structure (caps, 0);
1859 if (!gst_structure_has_field (s, "streamheader")) {
1860 gst_caps_unref (caps);
1864 v = gst_structure_get_value (s, "streamheader");
1865 if (GST_VALUE_HOLDS_ARRAY (v)) {
1866 guint n = gst_value_array_get_size (v);
1870 gst_buffer_map (buf, &map, GST_MAP_READ);
1872 for (i = 0; i < n; i++) {
1873 const GValue *v2 = gst_value_array_get_value (v, i);
1877 if (!GST_VALUE_HOLDS_BUFFER (v2))
1880 buf2 = gst_value_get_buffer (v2);
1882 gst_caps_unref (caps);
1885 gst_buffer_map (buf2, &map2, GST_MAP_READ);
1886 if (map.size == map2.size && memcmp (map.data, map2.data, map.size) == 0) {
1887 gst_buffer_unmap (buf2, &map2);
1888 gst_buffer_unmap (buf, &map);
1889 gst_caps_unref (caps);
1892 gst_buffer_unmap (buf2, &map2);
1894 gst_buffer_unmap (buf, &map);
1897 gst_caps_unref (caps);
1902 static GstFlowReturn
1903 gst_multi_handle_sink_render (GstBaseSink * bsink, GstBuffer * buf)
1905 gboolean is_header, in_caps;
1907 GstCaps *bufcaps, *padcaps;
1910 GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (bsink);
1912 g_return_val_if_fail (GST_OBJECT_FLAG_IS_SET (sink,
1913 GST_MULTI_HANDLE_SINK_OPEN), GST_FLOW_FLUSHING);
1916 /* since we check every buffer for streamheader caps, we need to make
1917 * sure every buffer has caps set */
1918 bufcaps = gst_buffer_get_caps (buf);
1919 padcaps = GST_PAD_CAPS (GST_BASE_SINK_PAD (bsink));
1921 /* make sure we have caps on the pad */
1922 if (!padcaps && !bufcaps)
1926 /* get HEADER first, code below might mess with the flags */
1927 is_header = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_HEADER);
1928 in_caps = is_header && buffer_is_in_caps (sink, buf);
1931 /* stamp the buffer with previous caps if no caps set */
1933 if (!gst_buffer_is_writable (buf)) {
1934 /* metadata is not writable, copy will be made and original buffer
1935 * will be unreffed so we need to ref so that we don't lose the
1936 * buffer in the render method. */
1937 gst_buffer_ref (buf);
1938 /* the new buffer is ours only, we keep it out of the scope of this
1940 buf = gst_buffer_make_writable (buf);
1942 /* else the metadata is writable, we ref because we keep the buffer
1943 * out of the scope of this method */
1944 gst_buffer_ref (buf);
1946 /* buffer metadata is writable now, set the caps */
1947 gst_buffer_set_caps (buf, padcaps);
1949 gst_caps_unref (bufcaps);
1951 /* since we keep this buffer out of the scope of this method */
1952 gst_buffer_ref (buf);
1955 gst_buffer_ref (buf);
1957 GST_LOG_OBJECT (sink, "received buffer %p, in_caps: %s, offset %"
1958 G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT
1959 ", timestamp %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
1960 buf, in_caps ? "yes" : "no", GST_BUFFER_OFFSET (buf),
1961 GST_BUFFER_OFFSET_END (buf),
1962 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
1963 GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
1965 /* if the incoming buffer is a streamheader from the caps, then we assume for now
1966 * it's a streamheader that needs to be sent to each new client.
1968 * We don't send the buffer to the client, since streamheaders are sent
1969 * separately when necessary. */
1971 GST_DEBUG_OBJECT (sink, "ignoring HEADER buffer with length %"
1972 G_GSIZE_FORMAT, gst_buffer_get_size (buf));
1973 gst_buffer_unref (buf);
1975 /* queue the buffer, this is a regular data buffer. */
1976 gst_multi_handle_sink_queue_buffer (sink, buf);
1978 sink->bytes_to_serve += gst_buffer_get_size (buf);
1986 GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL),
1987 ("Received first buffer without caps set"));
1988 return GST_FLOW_NOT_NEGOTIATED;
1994 gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
1995 const GValue * value, GParamSpec * pspec)
1997 GstMultiHandleSink *multihandlesink;
1999 multihandlesink = GST_MULTI_HANDLE_SINK (object);
2002 case PROP_BUFFERS_MAX:
2003 multihandlesink->units_max = g_value_get_int (value);
2005 case PROP_BUFFERS_SOFT_MAX:
2006 multihandlesink->units_soft_max = g_value_get_int (value);
2009 multihandlesink->time_min = g_value_get_int64 (value);
2011 case PROP_BYTES_MIN:
2012 multihandlesink->bytes_min = g_value_get_int (value);
2014 case PROP_BUFFERS_MIN:
2015 multihandlesink->buffers_min = g_value_get_int (value);
2017 case PROP_UNIT_FORMAT:
2018 multihandlesink->unit_format = g_value_get_enum (value);
2020 case PROP_UNITS_MAX:
2021 multihandlesink->units_max = g_value_get_int64 (value);
2023 case PROP_UNITS_SOFT_MAX:
2024 multihandlesink->units_soft_max = g_value_get_int64 (value);
2026 case PROP_RECOVER_POLICY:
2027 multihandlesink->recover_policy = g_value_get_enum (value);
2030 multihandlesink->timeout = g_value_get_uint64 (value);
2032 case PROP_SYNC_METHOD:
2033 multihandlesink->def_sync_method = g_value_get_enum (value);
2035 case PROP_BURST_FORMAT:
2036 multihandlesink->def_burst_format = g_value_get_enum (value);
2038 case PROP_BURST_VALUE:
2039 multihandlesink->def_burst_value = g_value_get_uint64 (value);
2042 multihandlesink->qos_dscp = g_value_get_int (value);
2043 gst_multi_handle_sink_setup_dscp (multihandlesink);
2046 case PROP_RESEND_STREAMHEADER:
2047 multihandlesink->resend_streamheader = g_value_get_boolean (value);
2051 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2057 gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
2058 GValue * value, GParamSpec * pspec)
2060 GstMultiHandleSink *multihandlesink;
2062 multihandlesink = GST_MULTI_HANDLE_SINK (object);
2065 case PROP_BUFFERS_MAX:
2066 g_value_set_int (value, multihandlesink->units_max);
2068 case PROP_BUFFERS_SOFT_MAX:
2069 g_value_set_int (value, multihandlesink->units_soft_max);
2072 g_value_set_int64 (value, multihandlesink->time_min);
2074 case PROP_BYTES_MIN:
2075 g_value_set_int (value, multihandlesink->bytes_min);
2077 case PROP_BUFFERS_MIN:
2078 g_value_set_int (value, multihandlesink->buffers_min);
2080 case PROP_BUFFERS_QUEUED:
2081 g_value_set_uint (value, multihandlesink->buffers_queued);
2083 case PROP_BYTES_QUEUED:
2084 g_value_set_uint (value, multihandlesink->bytes_queued);
2086 case PROP_TIME_QUEUED:
2087 g_value_set_uint64 (value, multihandlesink->time_queued);
2089 case PROP_UNIT_FORMAT:
2090 g_value_set_enum (value, multihandlesink->unit_format);
2092 case PROP_UNITS_MAX:
2093 g_value_set_int64 (value, multihandlesink->units_max);
2095 case PROP_UNITS_SOFT_MAX:
2096 g_value_set_int64 (value, multihandlesink->units_soft_max);
2098 case PROP_RECOVER_POLICY:
2099 g_value_set_enum (value, multihandlesink->recover_policy);
2102 g_value_set_uint64 (value, multihandlesink->timeout);
2104 case PROP_SYNC_METHOD:
2105 g_value_set_enum (value, multihandlesink->def_sync_method);
2107 case PROP_BYTES_TO_SERVE:
2108 g_value_set_uint64 (value, multihandlesink->bytes_to_serve);
2110 case PROP_BYTES_SERVED:
2111 g_value_set_uint64 (value, multihandlesink->bytes_served);
2113 case PROP_BURST_FORMAT:
2114 g_value_set_enum (value, multihandlesink->def_burst_format);
2116 case PROP_BURST_VALUE:
2117 g_value_set_uint64 (value, multihandlesink->def_burst_value);
2120 g_value_set_int (value, multihandlesink->qos_dscp);
2122 case PROP_RESEND_STREAMHEADER:
2123 g_value_set_boolean (value, multihandlesink->resend_streamheader);
2125 case PROP_NUM_HANDLES:
2126 g_value_set_uint (value,
2127 g_hash_table_size (multihandlesink->handle_hash));
2130 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2135 /* create a socket for sending to remote machine */
2137 gst_multi_handle_sink_start (GstBaseSink * bsink)
2139 GstMultiHandleSinkClass *mhsclass;
2140 GstMultiHandleSink *mhsink;
2142 if (GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
2145 mhsink = GST_MULTI_HANDLE_SINK (bsink);
2146 mhsclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
2148 if (!mhsclass->start_pre (mhsink))
2151 mhsink->bytes_to_serve = 0;
2152 mhsink->bytes_served = 0;
2154 if (mhsclass->init) {
2155 mhsclass->init (mhsink);
2158 mhsink->running = TRUE;
2160 mhsink->thread = g_thread_new ("multihandlesink",
2161 (GThreadFunc) mhsclass->thread, mhsink);
2163 GST_OBJECT_FLAG_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN);
2169 gst_multi_handle_sink_stop (GstBaseSink * bsink)
2171 GstMultiHandleSinkClass *mhclass;
2174 GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (bsink);
2176 mhclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
2178 if (!GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
2181 mhsink->running = FALSE;
2183 mhclass->stop_pre (mhsink);
2185 if (mhsink->thread) {
2186 GST_DEBUG_OBJECT (mhsink, "joining thread");
2187 g_thread_join (mhsink->thread);
2188 GST_DEBUG_OBJECT (mhsink, "joined thread");
2189 mhsink->thread = NULL;
2192 /* free the clients */
2193 mhclass->clear (GST_MULTI_HANDLE_SINK (mhsink));
2196 mhclass->close (mhsink);
2198 mhclass->stop_post (mhsink);
2200 /* remove all queued buffers */
2201 if (mhsink->bufqueue) {
2202 GST_DEBUG_OBJECT (mhsink, "Emptying bufqueue with %d buffers",
2203 mhsink->bufqueue->len);
2204 for (i = mhsink->bufqueue->len - 1; i >= 0; --i) {
2205 buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
2206 GST_LOG_OBJECT (mhsink, "Removing buffer %p (%d) with refcount %d", buf,
2207 i, GST_MINI_OBJECT_REFCOUNT (buf));
2208 gst_buffer_unref (buf);
2209 mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
2211 /* freeing the array is done in _finalize */
2213 GST_OBJECT_FLAG_UNSET (mhsink, GST_MULTI_HANDLE_SINK_OPEN);
2218 static GstStateChangeReturn
2219 gst_multi_handle_sink_change_state (GstElement * element,
2220 GstStateChange transition)
2222 GstMultiHandleSink *sink;
2223 GstStateChangeReturn ret;
2225 sink = GST_MULTI_HANDLE_SINK (element);
2227 /* we disallow changing the state from the streaming thread */
2228 if (g_thread_self () == sink->thread) {
2230 ("\nTrying to change %s's state from its streaming thread would deadlock.\n"
2231 "You cannot change the state of an element from its streaming\n"
2232 "thread. Use g_idle_add() or post a GstMessage on the bus to\n"
2233 "schedule the state change from the main thread.\n",
2234 GST_ELEMENT_NAME (sink));
2236 return GST_STATE_CHANGE_FAILURE;
2239 switch (transition) {
2240 case GST_STATE_CHANGE_NULL_TO_READY:
2241 if (!gst_multi_handle_sink_start (GST_BASE_SINK (sink)))
2244 case GST_STATE_CHANGE_READY_TO_PAUSED:
2246 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
2252 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
2254 switch (transition) {
2255 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
2257 case GST_STATE_CHANGE_PAUSED_TO_READY:
2259 case GST_STATE_CHANGE_READY_TO_NULL:
2260 gst_multi_handle_sink_stop (GST_BASE_SINK (sink));
2270 /* error message was posted */
2271 return GST_STATE_CHANGE_FAILURE;