2 * Copyright (C) 2008 Wim Taymans <wim.taymans at gmail.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
21 * @short_description: A client connection state
22 * @see_also: #GstRTSPServer, #GstRTSPThreadPool
24 * The client object handles the connection with a client for as long as a TCP
27 * A #GstRTSPClient is created by #GstRTSPServer when a new connection is
28 * accepted and it inherits the #GstRTSPMountPoints, #GstRTSPSessionPool,
29 * #GstRTSPAuth and #GstRTSPThreadPool from the server.
31 * The client connection should be configured with the #GstRTSPConnection using
32 * gst_rtsp_client_set_connection() before it can be attached to a #GMainContext
33 * using gst_rtsp_client_attach(). From then on the client will handle requests
36 * Use gst_rtsp_client_session_filter() to iterate or modify all the
37 * #GstRTSPSession objects managed by the client object.
39 * Last reviewed on 2013-07-11 (1.0.0)
45 #include "rtsp-client.h"
47 #include "rtsp-params.h"
49 #define GST_RTSP_CLIENT_GET_PRIVATE(obj) \
50 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_RTSP_CLIENT, GstRTSPClientPrivate))
53 * send_lock, lock, tunnels_lock
56 struct _GstRTSPClientPrivate
58 GMutex lock; /* protects everything else */
60 GstRTSPConnection *connection;
66 GstRTSPClientSendFunc send_func; /* protected by send_lock */
67 gpointer send_data; /* protected by send_lock */
68 GDestroyNotify send_notify; /* protected by send_lock */
70 GstRTSPSessionPool *session_pool;
71 GstRTSPMountPoints *mount_points;
73 GstRTSPThreadPool *thread_pool;
75 /* used to cache the media in the last requested DESCRIBE so that
76 * we can pick it up in the next SETUP immediately */
84 static GMutex tunnels_lock;
85 static GHashTable *tunnels; /* protected by tunnels_lock */
87 #define DEFAULT_SESSION_POOL NULL
88 #define DEFAULT_MOUNT_POINTS NULL
102 SIGNAL_OPTIONS_REQUEST,
103 SIGNAL_DESCRIBE_REQUEST,
104 SIGNAL_SETUP_REQUEST,
106 SIGNAL_PAUSE_REQUEST,
107 SIGNAL_TEARDOWN_REQUEST,
108 SIGNAL_SET_PARAMETER_REQUEST,
109 SIGNAL_GET_PARAMETER_REQUEST,
110 SIGNAL_HANDLE_RESPONSE,
114 GST_DEBUG_CATEGORY_STATIC (rtsp_client_debug);
115 #define GST_CAT_DEFAULT rtsp_client_debug
117 static guint gst_rtsp_client_signals[SIGNAL_LAST] = { 0 };
119 static void gst_rtsp_client_get_property (GObject * object, guint propid,
120 GValue * value, GParamSpec * pspec);
121 static void gst_rtsp_client_set_property (GObject * object, guint propid,
122 const GValue * value, GParamSpec * pspec);
123 static void gst_rtsp_client_finalize (GObject * obj);
125 static GstSDPMessage *create_sdp (GstRTSPClient * client, GstRTSPMedia * media);
126 static void client_session_finalized (GstRTSPClient * client,
127 GstRTSPSession * session);
128 static void unlink_session_transports (GstRTSPClient * client,
129 GstRTSPSession * session, GstRTSPSessionMedia * sessmedia);
130 static gboolean default_configure_client_transport (GstRTSPClient * client,
131 GstRTSPContext * ctx, GstRTSPTransport * ct);
132 static GstRTSPResult default_params_set (GstRTSPClient * client,
133 GstRTSPContext * ctx);
134 static GstRTSPResult default_params_get (GstRTSPClient * client,
135 GstRTSPContext * ctx);
136 static gchar * default_make_path_from_uri (GstRTSPClient *client,
137 const GstRTSPUrl *uri);
139 G_DEFINE_TYPE (GstRTSPClient, gst_rtsp_client, G_TYPE_OBJECT);
142 gst_rtsp_client_class_init (GstRTSPClientClass * klass)
144 GObjectClass *gobject_class;
146 g_type_class_add_private (klass, sizeof (GstRTSPClientPrivate));
148 gobject_class = G_OBJECT_CLASS (klass);
150 gobject_class->get_property = gst_rtsp_client_get_property;
151 gobject_class->set_property = gst_rtsp_client_set_property;
152 gobject_class->finalize = gst_rtsp_client_finalize;
154 klass->create_sdp = create_sdp;
155 klass->configure_client_transport = default_configure_client_transport;
156 klass->params_set = default_params_set;
157 klass->params_get = default_params_get;
158 klass->make_path_from_uri = default_make_path_from_uri;
160 g_object_class_install_property (gobject_class, PROP_SESSION_POOL,
161 g_param_spec_object ("session-pool", "Session Pool",
162 "The session pool to use for client session",
163 GST_TYPE_RTSP_SESSION_POOL,
164 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
166 g_object_class_install_property (gobject_class, PROP_MOUNT_POINTS,
167 g_param_spec_object ("mount-points", "Mount Points",
168 "The mount points to use for client session",
169 GST_TYPE_RTSP_MOUNT_POINTS,
170 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
172 gst_rtsp_client_signals[SIGNAL_CLOSED] =
173 g_signal_new ("closed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
174 G_STRUCT_OFFSET (GstRTSPClientClass, closed), NULL, NULL,
175 g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
177 gst_rtsp_client_signals[SIGNAL_NEW_SESSION] =
178 g_signal_new ("new-session", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
179 G_STRUCT_OFFSET (GstRTSPClientClass, new_session), NULL, NULL,
180 g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GST_TYPE_RTSP_SESSION);
182 gst_rtsp_client_signals[SIGNAL_OPTIONS_REQUEST] =
183 g_signal_new ("options-request", G_TYPE_FROM_CLASS (klass),
184 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, options_request),
185 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
188 gst_rtsp_client_signals[SIGNAL_DESCRIBE_REQUEST] =
189 g_signal_new ("describe-request", G_TYPE_FROM_CLASS (klass),
190 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, describe_request),
191 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
194 gst_rtsp_client_signals[SIGNAL_SETUP_REQUEST] =
195 g_signal_new ("setup-request", G_TYPE_FROM_CLASS (klass),
196 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, setup_request),
197 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
200 gst_rtsp_client_signals[SIGNAL_PLAY_REQUEST] =
201 g_signal_new ("play-request", G_TYPE_FROM_CLASS (klass),
202 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, play_request),
203 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
206 gst_rtsp_client_signals[SIGNAL_PAUSE_REQUEST] =
207 g_signal_new ("pause-request", G_TYPE_FROM_CLASS (klass),
208 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, pause_request),
209 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
212 gst_rtsp_client_signals[SIGNAL_TEARDOWN_REQUEST] =
213 g_signal_new ("teardown-request", G_TYPE_FROM_CLASS (klass),
214 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass, teardown_request),
215 NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
218 gst_rtsp_client_signals[SIGNAL_SET_PARAMETER_REQUEST] =
219 g_signal_new ("set-parameter-request", G_TYPE_FROM_CLASS (klass),
220 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass,
221 set_parameter_request), NULL, NULL, g_cclosure_marshal_VOID__POINTER,
222 G_TYPE_NONE, 1, G_TYPE_POINTER);
224 gst_rtsp_client_signals[SIGNAL_GET_PARAMETER_REQUEST] =
225 g_signal_new ("get-parameter-request", G_TYPE_FROM_CLASS (klass),
226 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass,
227 get_parameter_request), NULL, NULL, g_cclosure_marshal_VOID__POINTER,
228 G_TYPE_NONE, 1, G_TYPE_POINTER);
230 gst_rtsp_client_signals[SIGNAL_HANDLE_RESPONSE] =
231 g_signal_new ("handle-response", G_TYPE_FROM_CLASS (klass),
232 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPClientClass,
233 handle_response), NULL, NULL, g_cclosure_marshal_VOID__POINTER,
234 G_TYPE_NONE, 1, G_TYPE_POINTER);
237 g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
238 g_mutex_init (&tunnels_lock);
240 GST_DEBUG_CATEGORY_INIT (rtsp_client_debug, "rtspclient", 0, "GstRTSPClient");
244 gst_rtsp_client_init (GstRTSPClient * client)
246 GstRTSPClientPrivate *priv = GST_RTSP_CLIENT_GET_PRIVATE (client);
250 g_mutex_init (&priv->lock);
251 g_mutex_init (&priv->send_lock);
255 static GstRTSPFilterResult
256 filter_session (GstRTSPSession * sess, GstRTSPSessionMedia * sessmedia,
259 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
261 gst_rtsp_session_media_set_state (sessmedia, GST_STATE_NULL);
262 unlink_session_transports (client, sess, sessmedia);
264 /* unmanage the media in the session */
265 return GST_RTSP_FILTER_REMOVE;
269 client_unlink_session (GstRTSPClient * client, GstRTSPSession * session)
271 /* unlink all media managed in this session */
272 gst_rtsp_session_filter (session, filter_session, client);
276 client_watch_session (GstRTSPClient * client, GstRTSPSession * session)
278 GstRTSPClientPrivate *priv = client->priv;
281 for (walk = priv->sessions; walk; walk = g_list_next (walk)) {
282 GstRTSPSession *msession = (GstRTSPSession *) walk->data;
284 /* we already know about this session */
285 if (msession == session)
289 GST_INFO ("watching session %p", session);
291 g_object_weak_ref (G_OBJECT (session), (GWeakNotify) client_session_finalized,
293 priv->sessions = g_list_prepend (priv->sessions, session);
297 client_unwatch_session (GstRTSPClient * client, GstRTSPSession * session)
299 GstRTSPClientPrivate *priv = client->priv;
301 GST_INFO ("unwatching session %p", session);
303 g_object_weak_unref (G_OBJECT (session),
304 (GWeakNotify) client_session_finalized, client);
305 priv->sessions = g_list_remove (priv->sessions, session);
309 client_cleanup_session (GstRTSPClient * client, GstRTSPSession * session)
311 g_object_weak_unref (G_OBJECT (session),
312 (GWeakNotify) client_session_finalized, client);
313 client_unlink_session (client, session);
317 client_cleanup_sessions (GstRTSPClient * client)
319 GstRTSPClientPrivate *priv = client->priv;
322 /* remove weak-ref from sessions */
323 for (sessions = priv->sessions; sessions; sessions = g_list_next (sessions)) {
324 client_cleanup_session (client, (GstRTSPSession *) sessions->data);
326 g_list_free (priv->sessions);
327 priv->sessions = NULL;
330 /* A client is finalized when the connection is broken */
332 gst_rtsp_client_finalize (GObject * obj)
334 GstRTSPClient *client = GST_RTSP_CLIENT (obj);
335 GstRTSPClientPrivate *priv = client->priv;
337 GST_INFO ("finalize client %p", client);
339 gst_rtsp_client_set_send_func (client, NULL, NULL, NULL);
342 g_source_destroy ((GSource *) priv->watch);
344 client_cleanup_sessions (client);
346 if (priv->connection)
347 gst_rtsp_connection_free (priv->connection);
348 if (priv->session_pool)
349 g_object_unref (priv->session_pool);
350 if (priv->mount_points)
351 g_object_unref (priv->mount_points);
353 g_object_unref (priv->auth);
354 if (priv->thread_pool)
355 g_object_unref (priv->thread_pool);
360 gst_rtsp_media_unprepare (priv->media);
361 g_object_unref (priv->media);
364 g_free (priv->server_ip);
365 g_mutex_clear (&priv->lock);
366 g_mutex_clear (&priv->send_lock);
368 G_OBJECT_CLASS (gst_rtsp_client_parent_class)->finalize (obj);
372 gst_rtsp_client_get_property (GObject * object, guint propid,
373 GValue * value, GParamSpec * pspec)
375 GstRTSPClient *client = GST_RTSP_CLIENT (object);
378 case PROP_SESSION_POOL:
379 g_value_take_object (value, gst_rtsp_client_get_session_pool (client));
381 case PROP_MOUNT_POINTS:
382 g_value_take_object (value, gst_rtsp_client_get_mount_points (client));
385 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
390 gst_rtsp_client_set_property (GObject * object, guint propid,
391 const GValue * value, GParamSpec * pspec)
393 GstRTSPClient *client = GST_RTSP_CLIENT (object);
396 case PROP_SESSION_POOL:
397 gst_rtsp_client_set_session_pool (client, g_value_get_object (value));
399 case PROP_MOUNT_POINTS:
400 gst_rtsp_client_set_mount_points (client, g_value_get_object (value));
403 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
408 * gst_rtsp_client_new:
410 * Create a new #GstRTSPClient instance.
412 * Returns: a new #GstRTSPClient
415 gst_rtsp_client_new (void)
417 GstRTSPClient *result;
419 result = g_object_new (GST_TYPE_RTSP_CLIENT, NULL);
425 send_message (GstRTSPClient * client, GstRTSPSession * session,
426 GstRTSPMessage * message, gboolean close)
428 GstRTSPClientPrivate *priv = client->priv;
430 gst_rtsp_message_add_header (message, GST_RTSP_HDR_SERVER,
431 "GStreamer RTSP server");
433 /* remove any previous header */
434 gst_rtsp_message_remove_header (message, GST_RTSP_HDR_SESSION, -1);
436 /* add the new session header for new session ids */
438 gst_rtsp_message_take_header (message, GST_RTSP_HDR_SESSION,
439 gst_rtsp_session_get_header (session));
442 if (gst_debug_category_get_threshold (rtsp_client_debug) >= GST_LEVEL_LOG) {
443 gst_rtsp_message_dump (message);
447 gst_rtsp_message_add_header (message, GST_RTSP_HDR_CONNECTION, "close");
449 g_mutex_lock (&priv->send_lock);
451 priv->send_func (client, message, close, priv->send_data);
452 g_mutex_unlock (&priv->send_lock);
454 gst_rtsp_message_unset (message);
458 send_generic_response (GstRTSPClient * client, GstRTSPStatusCode code,
459 GstRTSPContext * ctx)
461 gst_rtsp_message_init_response (ctx->response, code,
462 gst_rtsp_status_as_text (code), ctx->request);
464 send_message (client, NULL, ctx->response, FALSE);
468 paths_are_equal (const gchar * path1, const gchar * path2, gint len2)
470 if (path1 == NULL || path2 == NULL)
473 if (strlen (path1) != len2)
476 if (strncmp (path1, path2, len2))
482 /* this function is called to initially find the media for the DESCRIBE request
483 * but is cached for when the same client (without breaking the connection) is
484 * doing a setup for the exact same url. */
485 static GstRTSPMedia *
486 find_media (GstRTSPClient * client, GstRTSPContext * ctx, gchar * path,
489 GstRTSPClientPrivate *priv = client->priv;
490 GstRTSPMediaFactory *factory;
494 /* find the longest matching factory for the uri first */
495 if (!(factory = gst_rtsp_mount_points_match (priv->mount_points,
499 ctx->factory = factory;
501 if (!gst_rtsp_auth_check (GST_RTSP_AUTH_CHECK_MEDIA_FACTORY_ACCESS))
502 goto no_factory_access;
504 if (!gst_rtsp_auth_check (GST_RTSP_AUTH_CHECK_MEDIA_FACTORY_CONSTRUCT))
510 path_len = strlen (path);
512 if (!paths_are_equal (priv->path, path, path_len)) {
513 GstRTSPThread *thread;
515 /* remove any previously cached values before we try to construct a new
521 gst_rtsp_media_unprepare (priv->media);
522 g_object_unref (priv->media);
526 /* prepare the media and add it to the pipeline */
527 if (!(media = gst_rtsp_media_factory_construct (factory, ctx->uri)))
532 thread = gst_rtsp_thread_pool_get_thread (priv->thread_pool,
533 GST_RTSP_THREAD_TYPE_MEDIA, ctx);
537 /* prepare the media */
538 if (!(gst_rtsp_media_prepare (media, thread)))
541 /* now keep track of the uri and the media */
542 priv->path = g_strndup (path, path_len);
545 /* we have seen this path before, used cached media */
548 GST_INFO ("reusing cached media %p for path %s", media, priv->path);
551 g_object_unref (factory);
555 g_object_ref (media);
562 GST_ERROR ("client %p: no factory for path %s", client, path);
563 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
568 GST_ERROR ("client %p: not authorized to see factory path %s", client,
570 /* error reply is already sent */
575 GST_ERROR ("client %p: not authorized for factory path %s", client, path);
576 /* error reply is already sent */
581 GST_ERROR ("client %p: can't create media", client);
582 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
583 g_object_unref (factory);
589 GST_ERROR ("client %p: can't create thread", client);
590 send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
591 g_object_unref (media);
593 g_object_unref (factory);
599 GST_ERROR ("client %p: can't prepare media", client);
600 send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
601 g_object_unref (media);
603 g_object_unref (factory);
610 do_send_data (GstBuffer * buffer, guint8 channel, GstRTSPClient * client)
612 GstRTSPClientPrivate *priv = client->priv;
613 GstRTSPMessage message = { 0 };
618 gst_rtsp_message_init_data (&message, channel);
620 /* FIXME, need some sort of iovec RTSPMessage here */
621 if (!gst_buffer_map (buffer, &map_info, GST_MAP_READ))
624 gst_rtsp_message_take_body (&message, map_info.data, map_info.size);
626 g_mutex_lock (&priv->send_lock);
628 priv->send_func (client, &message, FALSE, priv->send_data);
629 g_mutex_unlock (&priv->send_lock);
631 gst_rtsp_message_steal_body (&message, &data, &usize);
632 gst_buffer_unmap (buffer, &map_info);
634 gst_rtsp_message_unset (&message);
640 link_transport (GstRTSPClient * client, GstRTSPSession * session,
641 GstRTSPStreamTransport * trans)
643 GstRTSPClientPrivate *priv = client->priv;
645 GST_DEBUG ("client %p: linking transport %p", client, trans);
647 gst_rtsp_stream_transport_set_callbacks (trans,
648 (GstRTSPSendFunc) do_send_data,
649 (GstRTSPSendFunc) do_send_data, client, NULL);
651 priv->transports = g_list_prepend (priv->transports, trans);
653 /* make sure our session can't expire */
654 gst_rtsp_session_prevent_expire (session);
658 unlink_transport (GstRTSPClient * client, GstRTSPSession * session,
659 GstRTSPStreamTransport * trans)
661 GstRTSPClientPrivate *priv = client->priv;
663 GST_DEBUG ("client %p: unlinking transport %p", client, trans);
665 gst_rtsp_stream_transport_set_callbacks (trans, NULL, NULL, NULL, NULL);
667 priv->transports = g_list_remove (priv->transports, trans);
669 /* our session can now expire */
670 gst_rtsp_session_allow_expire (session);
674 unlink_session_transports (GstRTSPClient * client, GstRTSPSession * session,
675 GstRTSPSessionMedia * sessmedia)
680 gst_rtsp_media_n_streams (gst_rtsp_session_media_get_media (sessmedia));
681 for (i = 0; i < n_streams; i++) {
682 GstRTSPStreamTransport *trans;
683 const GstRTSPTransport *tr;
685 /* get the transport, if there is no transport configured, skip this stream */
686 trans = gst_rtsp_session_media_get_transport (sessmedia, i);
690 tr = gst_rtsp_stream_transport_get_transport (trans);
692 if (tr->lower_transport == GST_RTSP_LOWER_TRANS_TCP) {
693 /* for TCP, unlink the stream from the TCP connection of the client */
694 unlink_transport (client, session, trans);
700 close_connection (GstRTSPClient * client)
702 GstRTSPClientPrivate *priv = client->priv;
703 const gchar *tunnelid;
705 GST_DEBUG ("client %p: closing connection", client);
707 if ((tunnelid = gst_rtsp_connection_get_tunnelid (priv->connection))) {
708 g_mutex_lock (&tunnels_lock);
709 /* remove from tunnelids */
710 g_hash_table_remove (tunnels, tunnelid);
711 g_mutex_unlock (&tunnels_lock);
714 gst_rtsp_connection_close (priv->connection);
718 default_make_path_from_uri (GstRTSPClient * client, const GstRTSPUrl * uri)
723 path = g_strconcat (uri->abspath, "?", uri->query, NULL);
725 path = g_strdup (uri->abspath);
731 handle_teardown_request (GstRTSPClient * client, GstRTSPContext * ctx)
733 GstRTSPClientPrivate *priv = client->priv;
734 GstRTSPClientClass *klass;
735 GstRTSPSession *session;
736 GstRTSPSessionMedia *sessmedia;
737 GstRTSPStatusCode code;
744 session = ctx->session;
749 klass = GST_RTSP_CLIENT_GET_CLASS (client);
750 path = klass->make_path_from_uri (client, ctx->uri);
752 /* get a handle to the configuration of the media in the session */
753 sessmedia = gst_rtsp_session_get_media (session, path, &matched);
757 /* only aggregate control for now.. */
758 if (path[matched] != '\0')
763 ctx->sessmedia = sessmedia;
765 /* we emit the signal before closing the connection */
766 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_TEARDOWN_REQUEST],
769 /* unlink the all TCP callbacks */
770 unlink_session_transports (client, session, sessmedia);
772 /* remove the session from the watched sessions */
773 client_unwatch_session (client, session);
775 gst_rtsp_session_media_set_state (sessmedia, GST_STATE_NULL);
777 /* unmanage the media in the session, returns false if all media session
779 if (!gst_rtsp_session_release_media (session, sessmedia)) {
780 /* remove the session */
781 gst_rtsp_session_pool_remove (priv->session_pool, session);
783 /* construct the response now */
784 code = GST_RTSP_STS_OK;
785 gst_rtsp_message_init_response (ctx->response, code,
786 gst_rtsp_status_as_text (code), ctx->request);
788 send_message (client, session, ctx->response, TRUE);
795 GST_ERROR ("client %p: no session", client);
796 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
801 GST_ERROR ("client %p: no uri supplied", client);
802 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
807 GST_ERROR ("client %p: no media for uri", client);
808 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
814 GST_ERROR ("client %p: no aggregate path %s", client, path);
815 send_generic_response (client,
816 GST_RTSP_STS_ONLY_AGGREGATE_OPERATION_ALLOWED, ctx);
823 default_params_set (GstRTSPClient * client, GstRTSPContext * ctx)
827 res = gst_rtsp_params_set (client, ctx);
833 default_params_get (GstRTSPClient * client, GstRTSPContext * ctx)
837 res = gst_rtsp_params_get (client, ctx);
843 handle_get_param_request (GstRTSPClient * client, GstRTSPContext * ctx)
849 res = gst_rtsp_message_get_body (ctx->request, &data, &size);
850 if (res != GST_RTSP_OK)
854 /* no body, keep-alive request */
855 send_generic_response (client, GST_RTSP_STS_OK, ctx);
857 /* there is a body, handle the params */
858 res = GST_RTSP_CLIENT_GET_CLASS (client)->params_get (client, ctx);
859 if (res != GST_RTSP_OK)
862 send_message (client, ctx->session, ctx->response, FALSE);
865 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_GET_PARAMETER_REQUEST],
873 GST_ERROR ("client %p: bad request", client);
874 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
880 handle_set_param_request (GstRTSPClient * client, GstRTSPContext * ctx)
886 res = gst_rtsp_message_get_body (ctx->request, &data, &size);
887 if (res != GST_RTSP_OK)
891 /* no body, keep-alive request */
892 send_generic_response (client, GST_RTSP_STS_OK, ctx);
894 /* there is a body, handle the params */
895 res = GST_RTSP_CLIENT_GET_CLASS (client)->params_set (client, ctx);
896 if (res != GST_RTSP_OK)
899 send_message (client, ctx->session, ctx->response, FALSE);
902 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_SET_PARAMETER_REQUEST],
910 GST_ERROR ("client %p: bad request", client);
911 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
917 handle_pause_request (GstRTSPClient * client, GstRTSPContext * ctx)
919 GstRTSPSession *session;
920 GstRTSPClientClass *klass;
921 GstRTSPSessionMedia *sessmedia;
922 GstRTSPStatusCode code;
923 GstRTSPState rtspstate;
927 if (!(session = ctx->session))
933 klass = GST_RTSP_CLIENT_GET_CLASS (client);
934 path = klass->make_path_from_uri (client, ctx->uri);
936 /* get a handle to the configuration of the media in the session */
937 sessmedia = gst_rtsp_session_get_media (session, path, &matched);
941 if (path[matched] != '\0')
946 ctx->sessmedia = sessmedia;
948 rtspstate = gst_rtsp_session_media_get_rtsp_state (sessmedia);
949 /* the session state must be playing or recording */
950 if (rtspstate != GST_RTSP_STATE_PLAYING &&
951 rtspstate != GST_RTSP_STATE_RECORDING)
954 /* unlink the all TCP callbacks */
955 unlink_session_transports (client, session, sessmedia);
957 /* then pause sending */
958 gst_rtsp_session_media_set_state (sessmedia, GST_STATE_PAUSED);
960 /* construct the response now */
961 code = GST_RTSP_STS_OK;
962 gst_rtsp_message_init_response (ctx->response, code,
963 gst_rtsp_status_as_text (code), ctx->request);
965 send_message (client, session, ctx->response, FALSE);
967 /* the state is now READY */
968 gst_rtsp_session_media_set_rtsp_state (sessmedia, GST_RTSP_STATE_READY);
970 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_PAUSE_REQUEST], 0, ctx);
977 GST_ERROR ("client %p: no seesion", client);
978 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
983 GST_ERROR ("client %p: no uri supplied", client);
984 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
989 GST_ERROR ("client %p: no media for uri", client);
990 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
996 GST_ERROR ("client %p: no aggregate path %s", client, path);
997 send_generic_response (client,
998 GST_RTSP_STS_ONLY_AGGREGATE_OPERATION_ALLOWED, ctx);
1004 GST_ERROR ("client %p: not PLAYING or RECORDING", client);
1005 send_generic_response (client, GST_RTSP_STS_METHOD_NOT_VALID_IN_THIS_STATE,
1011 /* convert @url and @path to a URL used as a content base for the factory
1012 * located at @path */
1014 make_base_url (GstRTSPClient * client, GstRTSPUrl * url, gchar * path)
1017 gchar *result, *trail;
1019 /* check for trailing '/' and append one */
1020 trail = (path[strlen (path) - 1] != '/' ? "/" : "");
1025 tmp.abspath = g_strdup_printf ("%s%s", path, trail);
1027 result = gst_rtsp_url_get_request_uri (&tmp);
1028 g_free (tmp.abspath);
1034 handle_play_request (GstRTSPClient * client, GstRTSPContext * ctx)
1036 GstRTSPSession *session;
1037 GstRTSPClientClass *klass;
1038 GstRTSPSessionMedia *sessmedia;
1039 GstRTSPMedia *media;
1040 GstRTSPStatusCode code;
1043 guint n_streams, i, infocount;
1044 gchar *str, *base_url;
1045 GstRTSPTimeRange *range;
1047 GstRTSPState rtspstate;
1048 GstRTSPRangeUnit unit = GST_RTSP_RANGE_NPT;
1052 if (!(session = ctx->session))
1055 if (!(uri = ctx->uri))
1058 klass = GST_RTSP_CLIENT_GET_CLASS (client);
1059 path = klass->make_path_from_uri (client, uri);
1061 /* get a handle to the configuration of the media in the session */
1062 sessmedia = gst_rtsp_session_get_media (session, path, &matched);
1066 if (path[matched] != '\0')
1069 ctx->sessmedia = sessmedia;
1070 ctx->media = media = gst_rtsp_session_media_get_media (sessmedia);
1072 /* the session state must be playing or ready */
1073 rtspstate = gst_rtsp_session_media_get_rtsp_state (sessmedia);
1074 if (rtspstate != GST_RTSP_STATE_PLAYING && rtspstate != GST_RTSP_STATE_READY)
1077 /* parse the range header if we have one */
1078 res = gst_rtsp_message_get_header (ctx->request, GST_RTSP_HDR_RANGE, &str, 0);
1079 if (res == GST_RTSP_OK) {
1080 if (gst_rtsp_range_parse (str, &range) == GST_RTSP_OK) {
1081 /* we have a range, seek to the position */
1083 gst_rtsp_media_seek (media, range);
1084 gst_rtsp_range_free (range);
1088 /* grab RTPInfo from the payloaders now */
1089 rtpinfo = g_string_new ("");
1091 base_url = make_base_url (client, uri, path);
1093 n_streams = gst_rtsp_media_n_streams (media);
1094 for (i = 0, infocount = 0; i < n_streams; i++) {
1095 GstRTSPStreamTransport *trans;
1096 GstRTSPStream *stream;
1097 const GstRTSPTransport *tr;
1100 /* get the transport, if there is no transport configured, skip this stream */
1101 trans = gst_rtsp_session_media_get_transport (sessmedia, i);
1102 if (trans == NULL) {
1103 GST_INFO ("stream %d is not configured", i);
1106 tr = gst_rtsp_stream_transport_get_transport (trans);
1108 if (tr->lower_transport == GST_RTSP_LOWER_TRANS_TCP) {
1109 /* for TCP, link the stream to the TCP connection of the client */
1110 link_transport (client, session, trans);
1113 stream = gst_rtsp_stream_transport_get_stream (trans);
1114 if (gst_rtsp_stream_get_rtpinfo (stream, &rtptime, &seq)) {
1118 g_string_append (rtpinfo, ", ");
1120 control = gst_rtsp_stream_get_control (stream);
1121 g_string_append_printf (rtpinfo, "url=%s%s;seq=%u;rtptime=%u",
1122 base_url, control, seq, rtptime);
1127 GST_WARNING ("RTP-Info cannot be determined for stream %d", i);
1133 /* construct the response now */
1134 code = GST_RTSP_STS_OK;
1135 gst_rtsp_message_init_response (ctx->response, code,
1136 gst_rtsp_status_as_text (code), ctx->request);
1138 /* add the RTP-Info header */
1139 if (infocount > 0) {
1140 str = g_string_free (rtpinfo, FALSE);
1141 gst_rtsp_message_take_header (ctx->response, GST_RTSP_HDR_RTP_INFO, str);
1143 g_string_free (rtpinfo, TRUE);
1147 str = gst_rtsp_media_get_range_string (media, TRUE, unit);
1149 gst_rtsp_message_take_header (ctx->response, GST_RTSP_HDR_RANGE, str);
1151 send_message (client, session, ctx->response, FALSE);
1153 /* start playing after sending the request */
1154 gst_rtsp_session_media_set_state (sessmedia, GST_STATE_PLAYING);
1156 gst_rtsp_session_media_set_rtsp_state (sessmedia, GST_RTSP_STATE_PLAYING);
1158 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_PLAY_REQUEST], 0, ctx);
1165 GST_ERROR ("client %p: no session", client);
1166 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
1171 GST_ERROR ("client %p: no uri supplied", client);
1172 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
1177 GST_ERROR ("client %p: media not found", client);
1178 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1183 GST_ERROR ("client %p: no aggregate path %s", client, path);
1184 send_generic_response (client,
1185 GST_RTSP_STS_ONLY_AGGREGATE_OPERATION_ALLOWED, ctx);
1191 GST_ERROR ("client %p: not PLAYING or READY", client);
1192 send_generic_response (client, GST_RTSP_STS_METHOD_NOT_VALID_IN_THIS_STATE,
1200 do_keepalive (GstRTSPSession * session)
1202 GST_INFO ("keep session %p alive", session);
1203 gst_rtsp_session_touch (session);
1206 /* parse @transport and return a valid transport in @tr. only transports
1207 * from @supported are returned. Returns FALSE if no valid transport
1210 parse_transport (const char *transport, GstRTSPLowerTrans supported,
1211 GstRTSPTransport * tr)
1218 gst_rtsp_transport_init (tr);
1220 GST_DEBUG ("parsing transports %s", transport);
1222 transports = g_strsplit (transport, ",", 0);
1224 /* loop through the transports, try to parse */
1225 for (i = 0; transports[i]; i++) {
1226 res = gst_rtsp_transport_parse (transports[i], tr);
1227 if (res != GST_RTSP_OK) {
1228 /* no valid transport, search some more */
1229 GST_WARNING ("could not parse transport %s", transports[i]);
1233 /* we have a transport, see if it's RTP/AVP */
1234 if (tr->trans != GST_RTSP_TRANS_RTP || tr->profile != GST_RTSP_PROFILE_AVP) {
1235 GST_WARNING ("invalid transport %s", transports[i]);
1239 if (!(tr->lower_transport & supported)) {
1240 GST_WARNING ("unsupported transport %s", transports[i]);
1244 /* we have a valid transport */
1245 GST_INFO ("found valid transport %s", transports[i]);
1250 gst_rtsp_transport_init (tr);
1252 g_strfreev (transports);
1258 handle_blocksize (GstRTSPMedia * media, GstRTSPStream * stream,
1259 GstRTSPMessage * request)
1261 gchar *blocksize_str;
1262 gboolean ret = TRUE;
1264 if (gst_rtsp_message_get_header (request, GST_RTSP_HDR_BLOCKSIZE,
1265 &blocksize_str, 0) == GST_RTSP_OK) {
1269 blocksize = g_ascii_strtoull (blocksize_str, &end, 10);
1270 if (end == blocksize_str) {
1271 GST_ERROR ("failed to parse blocksize");
1274 /* we don't want to change the mtu when this media
1275 * can be shared because it impacts other clients */
1276 if (gst_rtsp_media_is_shared (media))
1279 if (blocksize > G_MAXUINT)
1280 blocksize = G_MAXUINT;
1281 gst_rtsp_stream_set_mtu (stream, blocksize);
1288 default_configure_client_transport (GstRTSPClient * client,
1289 GstRTSPContext * ctx, GstRTSPTransport * ct)
1291 GstRTSPClientPrivate *priv = client->priv;
1293 /* we have a valid transport now, set the destination of the client. */
1294 if (ct->lower_transport == GST_RTSP_LOWER_TRANS_UDP_MCAST) {
1295 gboolean use_client_settings;
1297 use_client_settings =
1298 gst_rtsp_auth_check (GST_RTSP_AUTH_CHECK_TRANSPORT_CLIENT_SETTINGS);
1300 if (ct->destination && use_client_settings) {
1301 GstRTSPAddress *addr;
1303 addr = gst_rtsp_stream_reserve_address (ctx->stream, ct->destination,
1304 ct->port.min, ct->port.max - ct->port.min + 1, ct->ttl);
1309 gst_rtsp_address_free (addr);
1311 GstRTSPAddress *addr;
1312 GSocketFamily family;
1314 family = priv->is_ipv6 ? G_SOCKET_FAMILY_IPV6 : G_SOCKET_FAMILY_IPV4;
1316 addr = gst_rtsp_stream_get_multicast_address (ctx->stream, family);
1320 g_free (ct->destination);
1321 ct->destination = g_strdup (addr->address);
1322 ct->port.min = addr->port;
1323 ct->port.max = addr->port + addr->n_ports - 1;
1324 ct->ttl = addr->ttl;
1326 gst_rtsp_address_free (addr);
1331 url = gst_rtsp_connection_get_url (priv->connection);
1332 g_free (ct->destination);
1333 ct->destination = g_strdup (url->host);
1335 if (ct->lower_transport & GST_RTSP_LOWER_TRANS_TCP) {
1336 /* check if the client selected channels for TCP */
1337 if (ct->interleaved.min == -1 || ct->interleaved.max == -1) {
1338 gst_rtsp_session_media_alloc_channels (ctx->sessmedia,
1348 GST_ERROR_OBJECT (client, "failed to acquire address for stream");
1353 static GstRTSPTransport *
1354 make_server_transport (GstRTSPClient * client, GstRTSPContext * ctx,
1355 GstRTSPTransport * ct)
1357 GstRTSPTransport *st;
1359 GSocketFamily family;
1361 /* prepare the server transport */
1362 gst_rtsp_transport_new (&st);
1364 st->trans = ct->trans;
1365 st->profile = ct->profile;
1366 st->lower_transport = ct->lower_transport;
1368 addr = g_inet_address_new_from_string (ct->destination);
1371 GST_ERROR ("failed to get inet addr from client destination");
1372 family = G_SOCKET_FAMILY_IPV4;
1374 family = g_inet_address_get_family (addr);
1375 g_object_unref (addr);
1379 switch (st->lower_transport) {
1380 case GST_RTSP_LOWER_TRANS_UDP:
1381 st->client_port = ct->client_port;
1382 gst_rtsp_stream_get_server_port (ctx->stream, &st->server_port, family);
1384 case GST_RTSP_LOWER_TRANS_UDP_MCAST:
1385 st->port = ct->port;
1386 st->destination = g_strdup (ct->destination);
1389 case GST_RTSP_LOWER_TRANS_TCP:
1390 st->interleaved = ct->interleaved;
1395 gst_rtsp_stream_get_ssrc (ctx->stream, &st->ssrc);
1401 handle_setup_request (GstRTSPClient * client, GstRTSPContext * ctx)
1403 GstRTSPClientPrivate *priv = client->priv;
1407 GstRTSPTransport *ct, *st;
1408 GstRTSPLowerTrans supported;
1409 GstRTSPStatusCode code;
1410 GstRTSPSession *session;
1411 GstRTSPStreamTransport *trans;
1413 GstRTSPSessionMedia *sessmedia;
1414 GstRTSPMedia *media;
1415 GstRTSPStream *stream;
1416 GstRTSPState rtspstate;
1417 GstRTSPClientClass *klass;
1418 gchar *path, *control;
1425 klass = GST_RTSP_CLIENT_GET_CLASS (client);
1426 path = klass->make_path_from_uri (client, uri);
1428 /* parse the transport */
1430 gst_rtsp_message_get_header (ctx->request, GST_RTSP_HDR_TRANSPORT,
1432 if (res != GST_RTSP_OK)
1435 /* we create the session after parsing stuff so that we don't make
1436 * a session for malformed requests */
1437 if (priv->session_pool == NULL)
1440 session = ctx->session;
1443 g_object_ref (session);
1444 /* get a handle to the configuration of the media in the session, this can
1445 * return NULL if this is a new url to manage in this session. */
1446 sessmedia = gst_rtsp_session_get_media (session, path, &matched);
1448 /* we need a new media configuration in this session */
1452 /* we have no session media, find one and manage it */
1453 if (sessmedia == NULL) {
1454 /* get a handle to the configuration of the media in the session */
1455 media = find_media (client, ctx, path, &matched);
1457 if ((media = gst_rtsp_session_media_get_media (sessmedia)))
1458 g_object_ref (media);
1460 goto media_not_found;
1462 /* no media, not found then */
1464 goto media_not_found_no_reply;
1466 if (path[matched] == '\0')
1467 goto control_not_found;
1469 /* path is what matched. We can modify the parsed uri in place */
1470 path[matched] = '\0';
1471 /* control is remainder */
1472 control = &path[matched + 1];
1474 /* find the stream now using the control part */
1475 stream = gst_rtsp_media_find_stream (media, control);
1477 goto stream_not_found;
1479 /* now we have a uri identifying a valid media and stream */
1480 ctx->stream = stream;
1483 if (session == NULL) {
1484 /* create a session if this fails we probably reached our session limit or
1486 if (!(session = gst_rtsp_session_pool_create (priv->session_pool)))
1487 goto service_unavailable;
1489 /* make sure this client is closed when the session is closed */
1490 client_watch_session (client, session);
1492 /* signal new session */
1493 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_NEW_SESSION], 0,
1496 ctx->session = session;
1499 if (sessmedia == NULL) {
1500 /* manage the media in our session now, if not done already */
1501 sessmedia = gst_rtsp_session_manage_media (session, path, media);
1502 /* if we stil have no media, error */
1503 if (sessmedia == NULL)
1504 goto sessmedia_unavailable;
1506 g_object_unref (media);
1509 ctx->sessmedia = sessmedia;
1511 /* set blocksize on this stream */
1512 if (!handle_blocksize (media, stream, ctx->request))
1513 goto invalid_blocksize;
1515 gst_rtsp_transport_new (&ct);
1517 /* our supported transports */
1518 supported = gst_rtsp_stream_get_protocols (stream);
1520 /* parse and find a usable supported transport */
1521 if (!parse_transport (transport, supported, ct))
1522 goto unsupported_transports;
1524 /* update the client transport */
1525 if (!klass->configure_client_transport (client, ctx, ct))
1526 goto unsupported_client_transport;
1528 /* set in the session media transport */
1529 trans = gst_rtsp_session_media_set_transport (sessmedia, stream, ct);
1531 /* configure keepalive for this transport */
1532 gst_rtsp_stream_transport_set_keepalive (trans,
1533 (GstRTSPKeepAliveFunc) do_keepalive, session, NULL);
1535 /* create and serialize the server transport */
1536 st = make_server_transport (client, ctx, ct);
1537 trans_str = gst_rtsp_transport_as_text (st);
1538 gst_rtsp_transport_free (st);
1540 /* construct the response now */
1541 code = GST_RTSP_STS_OK;
1542 gst_rtsp_message_init_response (ctx->response, code,
1543 gst_rtsp_status_as_text (code), ctx->request);
1545 gst_rtsp_message_add_header (ctx->response, GST_RTSP_HDR_TRANSPORT,
1549 send_message (client, session, ctx->response, FALSE);
1551 /* update the state */
1552 rtspstate = gst_rtsp_session_media_get_rtsp_state (sessmedia);
1553 switch (rtspstate) {
1554 case GST_RTSP_STATE_PLAYING:
1555 case GST_RTSP_STATE_RECORDING:
1556 case GST_RTSP_STATE_READY:
1557 /* no state change */
1560 gst_rtsp_session_media_set_rtsp_state (sessmedia, GST_RTSP_STATE_READY);
1563 g_object_unref (session);
1566 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_SETUP_REQUEST], 0, ctx);
1573 GST_ERROR ("client %p: no uri", client);
1574 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
1579 GST_ERROR ("client %p: no transport", client);
1580 send_generic_response (client, GST_RTSP_STS_UNSUPPORTED_TRANSPORT, ctx);
1586 GST_ERROR ("client %p: no session pool configured", client);
1587 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
1591 media_not_found_no_reply:
1593 GST_ERROR ("client %p: media '%s' not found", client, path);
1595 /* error reply is already sent */
1600 GST_ERROR ("client %p: media '%s' not found", client, path);
1601 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1607 GST_ERROR ("client %p: no control in path '%s'", client, path);
1608 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1609 g_object_unref (media);
1615 GST_ERROR ("client %p: stream '%s' not found", client, control);
1616 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1617 g_object_unref (media);
1621 service_unavailable:
1623 GST_ERROR ("client %p: can't create session", client);
1624 send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
1625 g_object_unref (media);
1629 sessmedia_unavailable:
1631 GST_ERROR ("client %p: can't create session media", client);
1632 send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
1633 g_object_unref (media);
1634 g_object_unref (session);
1640 GST_ERROR ("client %p: invalid blocksize", client);
1641 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
1642 g_object_unref (session);
1646 unsupported_transports:
1648 GST_ERROR ("client %p: unsupported transports", client);
1649 send_generic_response (client, GST_RTSP_STS_UNSUPPORTED_TRANSPORT, ctx);
1650 gst_rtsp_transport_free (ct);
1651 g_object_unref (session);
1655 unsupported_client_transport:
1657 GST_ERROR ("client %p: unsupported client transport", client);
1658 send_generic_response (client, GST_RTSP_STS_UNSUPPORTED_TRANSPORT, ctx);
1659 gst_rtsp_transport_free (ct);
1660 g_object_unref (session);
1666 static GstSDPMessage *
1667 create_sdp (GstRTSPClient * client, GstRTSPMedia * media)
1669 GstRTSPClientPrivate *priv = client->priv;
1674 gst_sdp_message_new (&sdp);
1676 /* some standard things first */
1677 gst_sdp_message_set_version (sdp, "0");
1684 gst_sdp_message_set_origin (sdp, "-", "1188340656180883", "1", "IN", proto,
1687 gst_sdp_message_set_session_name (sdp, "Session streamed with GStreamer");
1688 gst_sdp_message_set_information (sdp, "rtsp-server");
1689 gst_sdp_message_add_time (sdp, "0", "0", NULL);
1690 gst_sdp_message_add_attribute (sdp, "tool", "GStreamer");
1691 gst_sdp_message_add_attribute (sdp, "type", "broadcast");
1692 gst_sdp_message_add_attribute (sdp, "control", "*");
1694 info.is_ipv6 = priv->is_ipv6;
1695 info.server_ip = priv->server_ip;
1697 /* create an SDP for the media object */
1698 if (!gst_rtsp_sdp_from_media (sdp, &info, media))
1706 GST_ERROR ("client %p: could not create SDP", client);
1707 gst_sdp_message_free (sdp);
1712 /* for the describe we must generate an SDP */
1714 handle_describe_request (GstRTSPClient * client, GstRTSPContext * ctx)
1716 GstRTSPClientPrivate *priv = client->priv;
1721 GstRTSPMedia *media;
1722 GstRTSPClientClass *klass;
1724 klass = GST_RTSP_CLIENT_GET_CLASS (client);
1729 /* check what kind of format is accepted, we don't really do anything with it
1730 * and always return SDP for now. */
1735 gst_rtsp_message_get_header (ctx->request, GST_RTSP_HDR_ACCEPT,
1737 if (res == GST_RTSP_ENOTIMPL)
1740 if (g_ascii_strcasecmp (accept, "application/sdp") == 0)
1744 if (!priv->mount_points)
1745 goto no_mount_points;
1747 if (!(path = gst_rtsp_mount_points_make_path (priv->mount_points, ctx->uri)))
1750 /* find the media object for the uri */
1751 if (!(media = find_media (client, ctx, path, NULL)))
1754 /* create an SDP for the media object on this client */
1755 if (!(sdp = klass->create_sdp (client, media)))
1758 g_object_unref (media);
1760 gst_rtsp_message_init_response (ctx->response, GST_RTSP_STS_OK,
1761 gst_rtsp_status_as_text (GST_RTSP_STS_OK), ctx->request);
1763 gst_rtsp_message_add_header (ctx->response, GST_RTSP_HDR_CONTENT_TYPE,
1766 /* content base for some clients that might screw up creating the setup uri */
1767 str = make_base_url (client, ctx->uri, path);
1770 GST_INFO ("adding content-base: %s", str);
1771 gst_rtsp_message_take_header (ctx->response, GST_RTSP_HDR_CONTENT_BASE, str);
1773 /* add SDP to the response body */
1774 str = gst_sdp_message_as_text (sdp);
1775 gst_rtsp_message_take_body (ctx->response, (guint8 *) str, strlen (str));
1776 gst_sdp_message_free (sdp);
1778 send_message (client, ctx->session, ctx->response, FALSE);
1780 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_DESCRIBE_REQUEST],
1788 GST_ERROR ("client %p: no uri", client);
1789 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
1794 GST_ERROR ("client %p: no mount points configured", client);
1795 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1800 GST_ERROR ("client %p: can't find path for url", client);
1801 send_generic_response (client, GST_RTSP_STS_NOT_FOUND, ctx);
1806 GST_ERROR ("client %p: no media", client);
1808 /* error reply is already sent */
1813 GST_ERROR ("client %p: can't create SDP", client);
1814 send_generic_response (client, GST_RTSP_STS_SERVICE_UNAVAILABLE, ctx);
1816 g_object_unref (media);
1822 handle_options_request (GstRTSPClient * client, GstRTSPContext * ctx)
1824 GstRTSPMethod options;
1827 options = GST_RTSP_DESCRIBE |
1832 GST_RTSP_GET_PARAMETER | GST_RTSP_SET_PARAMETER | GST_RTSP_TEARDOWN;
1834 str = gst_rtsp_options_as_text (options);
1836 gst_rtsp_message_init_response (ctx->response, GST_RTSP_STS_OK,
1837 gst_rtsp_status_as_text (GST_RTSP_STS_OK), ctx->request);
1839 gst_rtsp_message_add_header (ctx->response, GST_RTSP_HDR_PUBLIC, str);
1842 send_message (client, ctx->session, ctx->response, FALSE);
1844 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_OPTIONS_REQUEST],
1850 /* remove duplicate and trailing '/' */
1852 sanitize_uri (GstRTSPUrl * uri)
1856 gboolean have_slash, prev_slash;
1858 s = d = uri->abspath;
1859 len = strlen (uri->abspath);
1863 for (i = 0; i < len; i++) {
1864 have_slash = s[i] == '/';
1866 if (!have_slash || !prev_slash)
1868 prev_slash = have_slash;
1870 len = d - uri->abspath;
1871 /* don't remove the first slash if that's the only thing left */
1872 if (len > 1 && *(d - 1) == '/')
1878 client_session_finalized (GstRTSPClient * client, GstRTSPSession * session)
1880 GstRTSPClientPrivate *priv = client->priv;
1882 GST_INFO ("client %p: session %p finished", client, session);
1884 /* unlink all media managed in this session */
1885 client_unlink_session (client, session);
1887 /* remove the session */
1888 if (!(priv->sessions = g_list_remove (priv->sessions, session))) {
1889 GST_INFO ("client %p: all sessions finalized, close the connection",
1891 close_connection (client);
1896 handle_request (GstRTSPClient * client, GstRTSPMessage * request)
1898 GstRTSPClientPrivate *priv = client->priv;
1899 GstRTSPMethod method;
1900 const gchar *uristr;
1901 GstRTSPUrl *uri = NULL;
1902 GstRTSPVersion version;
1904 GstRTSPSession *session = NULL;
1905 GstRTSPContext sctx = { NULL }, *ctx;
1906 GstRTSPMessage response = { 0 };
1909 if (!(ctx = gst_rtsp_context_get_current ())) {
1911 ctx->auth = priv->auth;
1912 gst_rtsp_context_push_current (ctx);
1915 ctx->conn = priv->connection;
1916 ctx->client = client;
1917 ctx->request = request;
1918 ctx->response = &response;
1920 if (gst_debug_category_get_threshold (rtsp_client_debug) >= GST_LEVEL_LOG) {
1921 gst_rtsp_message_dump (request);
1924 GST_INFO ("client %p: received a request", client);
1926 gst_rtsp_message_parse_request (request, &method, &uristr, &version);
1928 /* we can only handle 1.0 requests */
1929 if (version != GST_RTSP_VERSION_1_0)
1932 ctx->method = method;
1934 /* we always try to parse the url first */
1935 if (strcmp (uristr, "*") == 0) {
1936 /* special case where we have * as uri, keep uri = NULL */
1937 } else if (gst_rtsp_url_parse (uristr, &uri) != GST_RTSP_OK) {
1938 /* check if the uristr is an absolute path <=> scheme and host information
1942 scheme = g_uri_parse_scheme (uristr);
1943 if (scheme == NULL && g_str_has_prefix (uristr, "/")) {
1944 gchar *absolute_uristr = NULL;
1946 GST_WARNING_OBJECT (client, "request doesn't contain absolute url");
1947 if (priv->server_ip == NULL) {
1948 GST_WARNING_OBJECT (client, "host information missing");
1952 absolute_uristr = g_strdup_printf ("rtsp://%s%s", priv->server_ip, uristr);
1954 GST_DEBUG_OBJECT (client, "absolute url: %s", absolute_uristr);
1955 if (gst_rtsp_url_parse (absolute_uristr, &uri) != GST_RTSP_OK) {
1956 g_free (absolute_uristr);
1959 g_free (absolute_uristr);
1966 /* get the session if there is any */
1967 res = gst_rtsp_message_get_header (request, GST_RTSP_HDR_SESSION, &sessid, 0);
1968 if (res == GST_RTSP_OK) {
1969 if (priv->session_pool == NULL)
1972 /* we had a session in the request, find it again */
1973 if (!(session = gst_rtsp_session_pool_find (priv->session_pool, sessid)))
1974 goto session_not_found;
1976 /* we add the session to the client list of watched sessions. When a session
1977 * disappears because it times out, we will be notified. If all sessions are
1978 * gone, we will close the connection */
1979 client_watch_session (client, session);
1982 /* sanitize the uri */
1986 ctx->session = session;
1988 if (!gst_rtsp_auth_check (GST_RTSP_AUTH_CHECK_URL))
1989 goto not_authorized;
1991 /* now see what is asked and dispatch to a dedicated handler */
1993 case GST_RTSP_OPTIONS:
1994 handle_options_request (client, ctx);
1996 case GST_RTSP_DESCRIBE:
1997 handle_describe_request (client, ctx);
1999 case GST_RTSP_SETUP:
2000 handle_setup_request (client, ctx);
2003 handle_play_request (client, ctx);
2005 case GST_RTSP_PAUSE:
2006 handle_pause_request (client, ctx);
2008 case GST_RTSP_TEARDOWN:
2009 handle_teardown_request (client, ctx);
2011 case GST_RTSP_SET_PARAMETER:
2012 handle_set_param_request (client, ctx);
2014 case GST_RTSP_GET_PARAMETER:
2015 handle_get_param_request (client, ctx);
2017 case GST_RTSP_ANNOUNCE:
2018 case GST_RTSP_RECORD:
2019 case GST_RTSP_REDIRECT:
2020 goto not_implemented;
2021 case GST_RTSP_INVALID:
2028 gst_rtsp_context_pop_current (ctx);
2030 g_object_unref (session);
2032 gst_rtsp_url_free (uri);
2038 GST_ERROR ("client %p: version %d not supported", client, version);
2039 send_generic_response (client, GST_RTSP_STS_RTSP_VERSION_NOT_SUPPORTED,
2045 GST_ERROR ("client %p: bad request", client);
2046 send_generic_response (client, GST_RTSP_STS_BAD_REQUEST, ctx);
2051 GST_ERROR ("client %p: no pool configured", client);
2052 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
2057 GST_ERROR ("client %p: session not found", client);
2058 send_generic_response (client, GST_RTSP_STS_SESSION_NOT_FOUND, ctx);
2063 GST_ERROR ("client %p: not allowed", client);
2064 /* error reply is already sent */
2069 GST_ERROR ("client %p: method %d not implemented", client, method);
2070 send_generic_response (client, GST_RTSP_STS_NOT_IMPLEMENTED, ctx);
2077 handle_response (GstRTSPClient * client, GstRTSPMessage * response)
2079 GstRTSPClientPrivate *priv = client->priv;
2081 GstRTSPSession *session = NULL;
2082 GstRTSPContext sctx = { NULL }, *ctx;
2085 if (!(ctx = gst_rtsp_context_get_current ())) {
2087 ctx->auth = priv->auth;
2088 gst_rtsp_context_push_current (ctx);
2091 ctx->conn = priv->connection;
2092 ctx->client = client;
2093 ctx->request = NULL;
2095 ctx->method = GST_RTSP_INVALID;
2096 ctx->response = response;
2098 if (gst_debug_category_get_threshold (rtsp_client_debug) >= GST_LEVEL_LOG) {
2099 gst_rtsp_message_dump (response);
2102 GST_INFO ("client %p: received a response", client);
2104 /* get the session if there is any */
2106 gst_rtsp_message_get_header (response, GST_RTSP_HDR_SESSION, &sessid, 0);
2107 if (res == GST_RTSP_OK) {
2108 if (priv->session_pool == NULL)
2111 /* we had a session in the request, find it again */
2112 if (!(session = gst_rtsp_session_pool_find (priv->session_pool, sessid)))
2113 goto session_not_found;
2115 /* we add the session to the client list of watched sessions. When a session
2116 * disappears because it times out, we will be notified. If all sessions are
2117 * gone, we will close the connection */
2118 client_watch_session (client, session);
2121 ctx->session = session;
2123 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_HANDLE_RESPONSE],
2128 gst_rtsp_context_pop_current (ctx);
2130 g_object_unref (session);
2135 GST_ERROR ("client %p: no pool configured", client);
2140 GST_ERROR ("client %p: session not found", client);
2146 handle_data (GstRTSPClient * client, GstRTSPMessage * message)
2148 GstRTSPClientPrivate *priv = client->priv;
2157 /* find the stream for this message */
2158 res = gst_rtsp_message_parse_data (message, &channel);
2159 if (res != GST_RTSP_OK)
2162 gst_rtsp_message_steal_body (message, &data, &size);
2164 buffer = gst_buffer_new_wrapped (data, size);
2167 for (walk = priv->transports; walk; walk = g_list_next (walk)) {
2168 GstRTSPStreamTransport *trans;
2169 GstRTSPStream *stream;
2170 const GstRTSPTransport *tr;
2174 tr = gst_rtsp_stream_transport_get_transport (trans);
2175 stream = gst_rtsp_stream_transport_get_stream (trans);
2177 /* check for TCP transport */
2178 if (tr->lower_transport == GST_RTSP_LOWER_TRANS_TCP) {
2179 /* dispatch to the stream based on the channel number */
2180 if (tr->interleaved.min == channel) {
2181 gst_rtsp_stream_recv_rtp (stream, buffer);
2184 } else if (tr->interleaved.max == channel) {
2185 gst_rtsp_stream_recv_rtcp (stream, buffer);
2192 gst_buffer_unref (buffer);
2196 * gst_rtsp_client_set_session_pool:
2197 * @client: a #GstRTSPClient
2198 * @pool: a #GstRTSPSessionPool
2200 * Set @pool as the sessionpool for @client which it will use to find
2201 * or allocate sessions. the sessionpool is usually inherited from the server
2202 * that created the client but can be overridden later.
2205 gst_rtsp_client_set_session_pool (GstRTSPClient * client,
2206 GstRTSPSessionPool * pool)
2208 GstRTSPSessionPool *old;
2209 GstRTSPClientPrivate *priv;
2211 g_return_if_fail (GST_IS_RTSP_CLIENT (client));
2213 priv = client->priv;
2216 g_object_ref (pool);
2218 g_mutex_lock (&priv->lock);
2219 old = priv->session_pool;
2220 priv->session_pool = pool;
2221 g_mutex_unlock (&priv->lock);
2224 g_object_unref (old);
2228 * gst_rtsp_client_get_session_pool:
2229 * @client: a #GstRTSPClient
2231 * Get the #GstRTSPSessionPool object that @client uses to manage its sessions.
2233 * Returns: (transfer full): a #GstRTSPSessionPool, unref after usage.
2235 GstRTSPSessionPool *
2236 gst_rtsp_client_get_session_pool (GstRTSPClient * client)
2238 GstRTSPClientPrivate *priv;
2239 GstRTSPSessionPool *result;
2241 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2243 priv = client->priv;
2245 g_mutex_lock (&priv->lock);
2246 if ((result = priv->session_pool))
2247 g_object_ref (result);
2248 g_mutex_unlock (&priv->lock);
2254 * gst_rtsp_client_set_mount_points:
2255 * @client: a #GstRTSPClient
2256 * @mounts: a #GstRTSPMountPoints
2258 * Set @mounts as the mount points for @client which it will use to map urls
2259 * to media streams. These mount points are usually inherited from the server that
2260 * created the client but can be overriden later.
2263 gst_rtsp_client_set_mount_points (GstRTSPClient * client,
2264 GstRTSPMountPoints * mounts)
2266 GstRTSPClientPrivate *priv;
2267 GstRTSPMountPoints *old;
2269 g_return_if_fail (GST_IS_RTSP_CLIENT (client));
2271 priv = client->priv;
2274 g_object_ref (mounts);
2276 g_mutex_lock (&priv->lock);
2277 old = priv->mount_points;
2278 priv->mount_points = mounts;
2279 g_mutex_unlock (&priv->lock);
2282 g_object_unref (old);
2286 * gst_rtsp_client_get_mount_points:
2287 * @client: a #GstRTSPClient
2289 * Get the #GstRTSPMountPoints object that @client uses to manage its sessions.
2291 * Returns: (transfer full): a #GstRTSPMountPoints, unref after usage.
2293 GstRTSPMountPoints *
2294 gst_rtsp_client_get_mount_points (GstRTSPClient * client)
2296 GstRTSPClientPrivate *priv;
2297 GstRTSPMountPoints *result;
2299 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2301 priv = client->priv;
2303 g_mutex_lock (&priv->lock);
2304 if ((result = priv->mount_points))
2305 g_object_ref (result);
2306 g_mutex_unlock (&priv->lock);
2312 * gst_rtsp_client_set_auth:
2313 * @client: a #GstRTSPClient
2314 * @auth: a #GstRTSPAuth
2316 * configure @auth to be used as the authentication manager of @client.
2319 gst_rtsp_client_set_auth (GstRTSPClient * client, GstRTSPAuth * auth)
2321 GstRTSPClientPrivate *priv;
2324 g_return_if_fail (GST_IS_RTSP_CLIENT (client));
2326 priv = client->priv;
2329 g_object_ref (auth);
2331 g_mutex_lock (&priv->lock);
2334 g_mutex_unlock (&priv->lock);
2337 g_object_unref (old);
2342 * gst_rtsp_client_get_auth:
2343 * @client: a #GstRTSPClient
2345 * Get the #GstRTSPAuth used as the authentication manager of @client.
2347 * Returns: (transfer full): the #GstRTSPAuth of @client. g_object_unref() after
2351 gst_rtsp_client_get_auth (GstRTSPClient * client)
2353 GstRTSPClientPrivate *priv;
2354 GstRTSPAuth *result;
2356 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2358 priv = client->priv;
2360 g_mutex_lock (&priv->lock);
2361 if ((result = priv->auth))
2362 g_object_ref (result);
2363 g_mutex_unlock (&priv->lock);
2369 * gst_rtsp_client_set_thread_pool:
2370 * @client: a #GstRTSPClient
2371 * @pool: a #GstRTSPThreadPool
2373 * configure @pool to be used as the thread pool of @client.
2376 gst_rtsp_client_set_thread_pool (GstRTSPClient * client,
2377 GstRTSPThreadPool * pool)
2379 GstRTSPClientPrivate *priv;
2380 GstRTSPThreadPool *old;
2382 g_return_if_fail (GST_IS_RTSP_CLIENT (client));
2384 priv = client->priv;
2387 g_object_ref (pool);
2389 g_mutex_lock (&priv->lock);
2390 old = priv->thread_pool;
2391 priv->thread_pool = pool;
2392 g_mutex_unlock (&priv->lock);
2395 g_object_unref (old);
2399 * gst_rtsp_client_get_thread_pool:
2400 * @client: a #GstRTSPClient
2402 * Get the #GstRTSPThreadPool used as the thread pool of @client.
2404 * Returns: (transfer full): the #GstRTSPThreadPool of @client. g_object_unref() after
2408 gst_rtsp_client_get_thread_pool (GstRTSPClient * client)
2410 GstRTSPClientPrivate *priv;
2411 GstRTSPThreadPool *result;
2413 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2415 priv = client->priv;
2417 g_mutex_lock (&priv->lock);
2418 if ((result = priv->thread_pool))
2419 g_object_ref (result);
2420 g_mutex_unlock (&priv->lock);
2426 * gst_rtsp_client_set_connection:
2427 * @client: a #GstRTSPClient
2428 * @conn: (transfer full): a #GstRTSPConnection
2430 * Set the #GstRTSPConnection of @client. This function takes ownership of
2433 * Returns: %TRUE on success.
2436 gst_rtsp_client_set_connection (GstRTSPClient * client,
2437 GstRTSPConnection * conn)
2439 GstRTSPClientPrivate *priv;
2440 GSocket *read_socket;
2441 GSocketAddress *address;
2443 GError *error = NULL;
2445 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), FALSE);
2446 g_return_val_if_fail (conn != NULL, FALSE);
2448 priv = client->priv;
2450 read_socket = gst_rtsp_connection_get_read_socket (conn);
2452 if (!(address = g_socket_get_local_address (read_socket, &error)))
2455 g_free (priv->server_ip);
2456 /* keep the original ip that the client connected to */
2457 if (G_IS_INET_SOCKET_ADDRESS (address)) {
2458 GInetAddress *iaddr;
2460 iaddr = g_inet_socket_address_get_address (G_INET_SOCKET_ADDRESS (address));
2462 /* socket might be ipv6 but adress still ipv4 */
2463 priv->is_ipv6 = g_inet_address_get_family (iaddr) == G_SOCKET_FAMILY_IPV6;
2464 priv->server_ip = g_inet_address_to_string (iaddr);
2465 g_object_unref (address);
2467 priv->is_ipv6 = g_socket_get_family (read_socket) == G_SOCKET_FAMILY_IPV6;
2468 priv->server_ip = g_strdup ("unknown");
2471 GST_INFO ("client %p connected to server ip %s, ipv6 = %d", client,
2472 priv->server_ip, priv->is_ipv6);
2474 url = gst_rtsp_connection_get_url (conn);
2475 GST_INFO ("added new client %p ip %s:%d", client, url->host, url->port);
2477 priv->connection = conn;
2484 GST_ERROR ("could not get local address %s", error->message);
2485 g_error_free (error);
2491 * gst_rtsp_client_get_connection:
2492 * @client: a #GstRTSPClient
2494 * Get the #GstRTSPConnection of @client.
2496 * Returns: (transfer none): the #GstRTSPConnection of @client.
2497 * The connection object returned remains valid until the client is freed.
2500 gst_rtsp_client_get_connection (GstRTSPClient * client)
2502 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2504 return client->priv->connection;
2508 * gst_rtsp_client_set_send_func:
2509 * @client: a #GstRTSPClient
2510 * @func: a #GstRTSPClientSendFunc
2511 * @user_data: user data passed to @func
2512 * @notify: called when @user_data is no longer in use
2514 * Set @func as the callback that will be called when a new message needs to be
2515 * sent to the client. @user_data is passed to @func and @notify is called when
2516 * @user_data is no longer in use.
2518 * By default, the client will send the messages on the #GstRTSPConnection that
2519 * was configured with gst_rtsp_client_attach() was called.
2522 gst_rtsp_client_set_send_func (GstRTSPClient * client,
2523 GstRTSPClientSendFunc func, gpointer user_data, GDestroyNotify notify)
2525 GstRTSPClientPrivate *priv;
2526 GDestroyNotify old_notify;
2529 g_return_if_fail (GST_IS_RTSP_CLIENT (client));
2531 priv = client->priv;
2533 g_mutex_lock (&priv->send_lock);
2534 priv->send_func = func;
2535 old_notify = priv->send_notify;
2536 old_data = priv->send_data;
2537 priv->send_notify = notify;
2538 priv->send_data = user_data;
2539 g_mutex_unlock (&priv->send_lock);
2542 old_notify (old_data);
2546 * gst_rtsp_client_handle_message:
2547 * @client: a #GstRTSPClient
2548 * @message: an #GstRTSPMessage
2550 * Let the client handle @message.
2552 * Returns: a #GstRTSPResult.
2555 gst_rtsp_client_handle_message (GstRTSPClient * client,
2556 GstRTSPMessage * message)
2558 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), GST_RTSP_EINVAL);
2559 g_return_val_if_fail (message != NULL, GST_RTSP_EINVAL);
2561 switch (message->type) {
2562 case GST_RTSP_MESSAGE_REQUEST:
2563 handle_request (client, message);
2565 case GST_RTSP_MESSAGE_RESPONSE:
2566 handle_response (client, message);
2568 case GST_RTSP_MESSAGE_DATA:
2569 handle_data (client, message);
2578 * gst_rtsp_client_send_message:
2579 * @client: a #GstRTSPClient
2580 * @session: a #GstRTSPSession to send the message to or %NULL
2581 * @message: The #GstRTSPMessage to send
2583 * Send a message message to the remote end. @message must be a
2584 * #GST_RTSP_MESSAGE_REQUEST or a #GST_RTSP_MESSAGE_RESPONSE.
2587 gst_rtsp_client_send_message (GstRTSPClient * client, GstRTSPSession * session,
2588 GstRTSPMessage * message)
2590 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), GST_RTSP_EINVAL);
2591 g_return_val_if_fail (message != NULL, GST_RTSP_EINVAL);
2592 g_return_val_if_fail (message->type == GST_RTSP_MESSAGE_REQUEST ||
2593 message->type == GST_RTSP_MESSAGE_RESPONSE, GST_RTSP_EINVAL);
2595 send_message (client, session, message, FALSE);
2600 static GstRTSPResult
2601 do_send_message (GstRTSPClient * client, GstRTSPMessage * message,
2602 gboolean close, gpointer user_data)
2604 GstRTSPClientPrivate *priv = client->priv;
2606 /* send the response and store the seq number so we can wait until it's
2607 * written to the client to close the connection */
2608 return gst_rtsp_watch_send_message (priv->watch, message, close ?
2609 &priv->close_seq : NULL);
2612 static GstRTSPResult
2613 message_received (GstRTSPWatch * watch, GstRTSPMessage * message,
2616 return gst_rtsp_client_handle_message (GST_RTSP_CLIENT (user_data), message);
2619 static GstRTSPResult
2620 message_sent (GstRTSPWatch * watch, guint cseq, gpointer user_data)
2622 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2623 GstRTSPClientPrivate *priv = client->priv;
2625 if (priv->close_seq && priv->close_seq == cseq) {
2626 priv->close_seq = 0;
2627 close_connection (client);
2633 static GstRTSPResult
2634 closed (GstRTSPWatch * watch, gpointer user_data)
2636 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2637 GstRTSPClientPrivate *priv = client->priv;
2638 const gchar *tunnelid;
2640 GST_INFO ("client %p: connection closed", client);
2642 if ((tunnelid = gst_rtsp_connection_get_tunnelid (priv->connection))) {
2643 g_mutex_lock (&tunnels_lock);
2644 /* remove from tunnelids */
2645 g_hash_table_remove (tunnels, tunnelid);
2646 g_mutex_unlock (&tunnels_lock);
2649 gst_rtsp_client_set_send_func (client, NULL, NULL, NULL);
2654 static GstRTSPResult
2655 error (GstRTSPWatch * watch, GstRTSPResult result, gpointer user_data)
2657 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2660 str = gst_rtsp_strresult (result);
2661 GST_INFO ("client %p: received an error %s", client, str);
2667 static GstRTSPResult
2668 error_full (GstRTSPWatch * watch, GstRTSPResult result,
2669 GstRTSPMessage * message, guint id, gpointer user_data)
2671 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2674 str = gst_rtsp_strresult (result);
2676 ("client %p: error when handling message %p with id %d: %s",
2677 client, message, id, str);
2684 remember_tunnel (GstRTSPClient * client)
2686 GstRTSPClientPrivate *priv = client->priv;
2687 const gchar *tunnelid;
2689 /* store client in the pending tunnels */
2690 tunnelid = gst_rtsp_connection_get_tunnelid (priv->connection);
2691 if (tunnelid == NULL)
2694 GST_INFO ("client %p: inserting tunnel session %s", client, tunnelid);
2696 /* we can't have two clients connecting with the same tunnelid */
2697 g_mutex_lock (&tunnels_lock);
2698 if (g_hash_table_lookup (tunnels, tunnelid))
2699 goto tunnel_existed;
2701 g_hash_table_insert (tunnels, g_strdup (tunnelid), g_object_ref (client));
2702 g_mutex_unlock (&tunnels_lock);
2709 GST_ERROR ("client %p: no tunnelid provided", client);
2714 g_mutex_unlock (&tunnels_lock);
2715 GST_ERROR ("client %p: tunnel session %s already existed", client,
2721 static GstRTSPStatusCode
2722 tunnel_start (GstRTSPWatch * watch, gpointer user_data)
2724 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2725 GstRTSPClientPrivate *priv = client->priv;
2727 GST_INFO ("client %p: tunnel start (connection %p)", client,
2730 if (!remember_tunnel (client))
2733 return GST_RTSP_STS_OK;
2738 GST_ERROR ("client %p: error starting tunnel", client);
2739 return GST_RTSP_STS_SERVICE_UNAVAILABLE;
2743 static GstRTSPResult
2744 tunnel_lost (GstRTSPWatch * watch, gpointer user_data)
2746 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2747 GstRTSPClientPrivate *priv = client->priv;
2749 GST_WARNING ("client %p: tunnel lost (connection %p)", client,
2752 /* ignore error, it'll only be a problem when the client does a POST again */
2753 remember_tunnel (client);
2758 static GstRTSPResult
2759 tunnel_complete (GstRTSPWatch * watch, gpointer user_data)
2761 const gchar *tunnelid;
2762 GstRTSPClient *client = GST_RTSP_CLIENT (user_data);
2763 GstRTSPClientPrivate *priv = client->priv;
2764 GstRTSPClient *oclient;
2765 GstRTSPClientPrivate *opriv;
2767 GST_INFO ("client %p: tunnel complete", client);
2769 /* find previous tunnel */
2770 tunnelid = gst_rtsp_connection_get_tunnelid (priv->connection);
2771 if (tunnelid == NULL)
2774 g_mutex_lock (&tunnels_lock);
2775 if (!(oclient = g_hash_table_lookup (tunnels, tunnelid)))
2778 /* remove the old client from the table. ref before because removing it will
2779 * remove the ref to it. */
2780 g_object_ref (oclient);
2781 g_hash_table_remove (tunnels, tunnelid);
2783 opriv = oclient->priv;
2785 if (opriv->watch == NULL)
2787 g_mutex_unlock (&tunnels_lock);
2789 GST_INFO ("client %p: found tunnel %p (old %p, new %p)", client, oclient,
2790 opriv->connection, priv->connection);
2792 /* merge the tunnels into the first client */
2793 gst_rtsp_connection_do_tunnel (opriv->connection, priv->connection);
2794 gst_rtsp_watch_reset (opriv->watch);
2795 g_object_unref (oclient);
2802 GST_ERROR ("client %p: no tunnelid provided", client);
2803 return GST_RTSP_ERROR;
2807 g_mutex_unlock (&tunnels_lock);
2808 GST_ERROR ("client %p: tunnel session %s not found", client, tunnelid);
2809 return GST_RTSP_ERROR;
2813 g_mutex_unlock (&tunnels_lock);
2814 GST_ERROR ("client %p: tunnel session %s was closed", client, tunnelid);
2815 g_object_unref (oclient);
2816 return GST_RTSP_ERROR;
2820 static GstRTSPWatchFuncs watch_funcs = {
2832 client_watch_notify (GstRTSPClient * client)
2834 GstRTSPClientPrivate *priv = client->priv;
2836 GST_INFO ("client %p: watch destroyed", client);
2838 g_signal_emit (client, gst_rtsp_client_signals[SIGNAL_CLOSED], 0, NULL);
2839 g_object_unref (client);
2843 * gst_rtsp_client_attach:
2844 * @client: a #GstRTSPClient
2845 * @context: (allow-none): a #GMainContext
2847 * Attaches @client to @context. When the mainloop for @context is run, the
2848 * client will be dispatched. When @context is NULL, the default context will be
2851 * This function should be called when the client properties and urls are fully
2852 * configured and the client is ready to start.
2854 * Returns: the ID (greater than 0) for the source within the GMainContext.
2857 gst_rtsp_client_attach (GstRTSPClient * client, GMainContext * context)
2859 GstRTSPClientPrivate *priv;
2862 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), 0);
2863 priv = client->priv;
2864 g_return_val_if_fail (priv->connection != NULL, 0);
2865 g_return_val_if_fail (priv->watch == NULL, 0);
2867 /* create watch for the connection and attach */
2868 priv->watch = gst_rtsp_watch_new (priv->connection, &watch_funcs,
2869 g_object_ref (client), (GDestroyNotify) client_watch_notify);
2870 gst_rtsp_client_set_send_func (client, do_send_message, priv->watch,
2871 (GDestroyNotify) gst_rtsp_watch_unref);
2873 /* FIXME make this configurable. We don't want to do this yet because it will
2874 * be superceeded by a cache object later */
2875 gst_rtsp_watch_set_send_backlog (priv->watch, 0, 100);
2877 GST_INFO ("attaching to context %p", context);
2878 res = gst_rtsp_watch_attach (priv->watch, context);
2884 * gst_rtsp_client_session_filter:
2885 * @client: a #GstRTSPClient
2886 * @func: (scope call): a callback
2887 * @user_data: user data passed to @func
2889 * Call @func for each session managed by @client. The result value of @func
2890 * determines what happens to the session. @func will be called with @client
2891 * locked so no further actions on @client can be performed from @func.
2893 * If @func returns #GST_RTSP_FILTER_REMOVE, the session will be removed from
2896 * If @func returns #GST_RTSP_FILTER_KEEP, the session will remain in @client.
2898 * If @func returns #GST_RTSP_FILTER_REF, the session will remain in @client but
2899 * will also be added with an additional ref to the result #GList of this
2902 * Returns: (element-type GstRTSPSession) (transfer full): a #GList with all
2903 * sessions for which @func returned #GST_RTSP_FILTER_REF. After usage, each
2904 * element in the #GList should be unreffed before the list is freed.
2907 gst_rtsp_client_session_filter (GstRTSPClient * client,
2908 GstRTSPClientSessionFilterFunc func, gpointer user_data)
2910 GstRTSPClientPrivate *priv;
2911 GList *result, *walk, *next;
2913 g_return_val_if_fail (GST_IS_RTSP_CLIENT (client), NULL);
2914 g_return_val_if_fail (func != NULL, NULL);
2916 priv = client->priv;
2920 g_mutex_lock (&priv->lock);
2921 for (walk = priv->sessions; walk; walk = next) {
2922 GstRTSPSession *sess = walk->data;
2924 next = g_list_next (walk);
2926 switch (func (client, sess, user_data)) {
2927 case GST_RTSP_FILTER_REMOVE:
2928 /* stop watching the session and pretent it went away */
2929 client_cleanup_session (client, sess);
2931 case GST_RTSP_FILTER_REF:
2932 result = g_list_prepend (result, g_object_ref (sess));
2934 case GST_RTSP_FILTER_KEEP:
2939 g_mutex_unlock (&priv->lock);