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., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
20 #include <sys/ioctl.h>
22 #include "rtsp-server.h"
23 #include "rtsp-client.h"
25 #define DEFAULT_BACKLOG 5
26 #define DEFAULT_PORT 8554
38 G_DEFINE_TYPE (GstRTSPServer, gst_rtsp_server, G_TYPE_OBJECT);
40 static void gst_rtsp_server_get_property (GObject *object, guint propid,
41 GValue *value, GParamSpec *pspec);
42 static void gst_rtsp_server_set_property (GObject *object, guint propid,
43 const GValue *value, GParamSpec *pspec);
44 static void gst_rtsp_server_finalize (GObject *object);
46 static GstRTSPClient * default_accept_client (GstRTSPServer *server,
50 gst_rtsp_server_class_init (GstRTSPServerClass * klass)
52 GObjectClass *gobject_class;
54 gobject_class = G_OBJECT_CLASS (klass);
56 gobject_class->get_property = gst_rtsp_server_get_property;
57 gobject_class->set_property = gst_rtsp_server_set_property;
58 gobject_class->finalize = gst_rtsp_server_finalize;
61 * GstRTSPServer::backlog
63 * The backlog argument defines the maximum length to which the queue of
64 * pending connections for the server may grow. If a connection request arrives
65 * when the queue is full, the client may receive an error with an indication of
66 * ECONNREFUSED or, if the underlying protocol supports retransmission, the
67 * request may be ignored so that a later reattempt at connection succeeds.
69 g_object_class_install_property (gobject_class, PROP_BACKLOG,
70 g_param_spec_int ("backlog", "Backlog", "The maximum length to which the queue "
71 "of pending connections may grow",
72 0, G_MAXINT, DEFAULT_BACKLOG, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
76 * The session port of the server. This is the port where the server will
79 g_object_class_install_property (gobject_class, PROP_PORT,
80 g_param_spec_int ("port", "Port", "The port the server uses to listen on",
81 1, 65535, DEFAULT_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
83 * GstRTSPServer::session-pool
85 * The session pool of the server. By default each server has a separate
86 * session pool but sessions can be shared between servers by setting the same
87 * session pool on multiple servers.
89 g_object_class_install_property (gobject_class, PROP_SESSION_POOL,
90 g_param_spec_object ("session-pool", "Session Pool",
91 "The session pool to use for client session",
92 GST_TYPE_RTSP_SESSION_POOL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
94 * GstRTSPServer::media-mapping
96 * The media mapping to use for this server. By default the server has no
97 * media mapping and thus cannot map urls to media streams.
99 g_object_class_install_property (gobject_class, PROP_MEDIA_MAPPING,
100 g_param_spec_object ("media-mapping", "Media Mapping",
101 "The media mapping to use for client session",
102 GST_TYPE_RTSP_MEDIA_MAPPING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
104 klass->accept_client = default_accept_client;
108 gst_rtsp_server_init (GstRTSPServer * server)
110 server->port = DEFAULT_PORT;
111 server->backlog = DEFAULT_BACKLOG;
112 server->session_pool = gst_rtsp_session_pool_new ();
113 server->media_mapping = gst_rtsp_media_mapping_new ();
117 gst_rtsp_server_finalize (GObject *object)
119 GstRTSPServer *server = GST_RTSP_SERVER (object);
121 g_object_unref (server->session_pool);
122 g_object_unref (server->media_mapping);
126 * gst_rtsp_server_new:
128 * Create a new #GstRTSPServer instance.
131 gst_rtsp_server_new (void)
133 GstRTSPServer *result;
135 result = g_object_new (GST_TYPE_RTSP_SERVER, NULL);
141 * gst_rtsp_server_set_port:
142 * @server: a #GstRTSPServer
145 * Configure @server to accept connections on the given port.
146 * @port should be a port number between 1 and 65535.
148 * This function must be called before the server is bound.
151 gst_rtsp_server_set_port (GstRTSPServer *server, gint port)
153 g_return_if_fail (GST_IS_RTSP_SERVER (server));
154 g_return_if_fail (port >= 1 && port <= 65535);
160 * gst_rtsp_server_get_port:
161 * @server: a #GstRTSPServer
163 * Get the port number on which the server will accept connections.
165 * Returns: the server port.
168 gst_rtsp_server_get_port (GstRTSPServer *server)
170 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), -1);
176 * gst_rtsp_server_set_backlog:
177 * @server: a #GstRTSPServer
178 * @backlog: the backlog
180 * configure the maximum amount of requests that may be queued for the
183 * This function must be called before the server is bound.
186 gst_rtsp_server_set_backlog (GstRTSPServer *server, gint backlog)
188 g_return_if_fail (GST_IS_RTSP_SERVER (server));
190 server->backlog = backlog;
194 * gst_rtsp_server_get_backlog:
195 * @server: a #GstRTSPServer
197 * The maximum amount of queued requests for the server.
199 * Returns: the server backlog.
202 gst_rtsp_server_get_backlog (GstRTSPServer *server)
204 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), -1);
206 return server->backlog;
210 * gst_rtsp_server_set_session_pool:
211 * @server: a #GstRTSPServer
212 * @pool: a #GstRTSPSessionPool
214 * configure @pool to be used as the session pool of @server.
217 gst_rtsp_server_set_session_pool (GstRTSPServer *server, GstRTSPSessionPool *pool)
219 GstRTSPSessionPool *old;
221 g_return_if_fail (GST_IS_RTSP_SERVER (server));
223 old = server->session_pool;
228 server->session_pool = pool;
230 g_object_unref (old);
235 * gst_rtsp_server_get_session_pool:
236 * @server: a #GstRTSPServer
238 * Get the #GstRTSPSessionPool used as the session pool of @server.
240 * Returns: the #GstRTSPSessionPool used for sessions. g_object_unref() after
244 gst_rtsp_server_get_session_pool (GstRTSPServer *server)
246 GstRTSPSessionPool *result;
248 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), NULL);
250 if ((result = server->session_pool))
251 g_object_ref (result);
257 * gst_rtsp_server_set_media_mapping:
258 * @server: a #GstRTSPServer
259 * @mapping: a #GstRTSPMediaMapping
261 * configure @mapping to be used as the media mapping of @server.
264 gst_rtsp_server_set_media_mapping (GstRTSPServer *server, GstRTSPMediaMapping *mapping)
266 GstRTSPMediaMapping *old;
268 g_return_if_fail (GST_IS_RTSP_SERVER (server));
270 old = server->media_mapping;
272 if (old != mapping) {
274 g_object_ref (mapping);
275 server->media_mapping = mapping;
277 g_object_unref (old);
283 * gst_rtsp_server_get_media_mapping:
284 * @server: a #GstRTSPServer
286 * Get the #GstRTSPMediaMapping used as the media mapping of @server.
288 * Returns: the #GstRTSPMediaMapping of @server. g_object_unref() after
291 GstRTSPMediaMapping *
292 gst_rtsp_server_get_media_mapping (GstRTSPServer *server)
294 GstRTSPMediaMapping *result;
296 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), NULL);
298 if ((result = server->media_mapping))
299 g_object_ref (result);
305 gst_rtsp_server_get_property (GObject *object, guint propid,
306 GValue *value, GParamSpec *pspec)
308 GstRTSPServer *server = GST_RTSP_SERVER (object);
312 g_value_set_int (value, gst_rtsp_server_get_port (server));
315 g_value_set_int (value, gst_rtsp_server_get_backlog (server));
317 case PROP_SESSION_POOL:
318 g_value_take_object (value, gst_rtsp_server_get_session_pool (server));
320 case PROP_MEDIA_MAPPING:
321 g_value_take_object (value, gst_rtsp_server_get_media_mapping (server));
324 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
329 gst_rtsp_server_set_property (GObject *object, guint propid,
330 const GValue *value, GParamSpec *pspec)
332 GstRTSPServer *server = GST_RTSP_SERVER (object);
336 gst_rtsp_server_set_port (server, g_value_get_int (value));
339 gst_rtsp_server_set_backlog (server, g_value_get_int (value));
341 case PROP_SESSION_POOL:
342 gst_rtsp_server_set_session_pool (server, g_value_get_object (value));
344 case PROP_MEDIA_MAPPING:
345 gst_rtsp_server_set_media_mapping (server, g_value_get_object (value));
348 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
352 /* Prepare a server socket for @server and make it listen on the configured port */
354 gst_rtsp_server_sink_init_send (GstRTSPServer * server)
358 /* create server socket */
359 if ((server->server_sock.fd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
362 GST_DEBUG_OBJECT (server, "opened sending server socket with fd %d",
363 server->server_sock.fd);
365 /* make address reusable */
367 if (setsockopt (server->server_sock.fd, SOL_SOCKET, SO_REUSEADDR,
368 (void *) &ret, sizeof (ret)) < 0)
371 /* keep connection alive; avoids SIGPIPE during write */
373 if (setsockopt (server->server_sock.fd, SOL_SOCKET, SO_KEEPALIVE,
374 (void *) &ret, sizeof (ret)) < 0)
375 goto keepalive_failed;
377 /* name the socket */
378 memset (&server->server_sin, 0, sizeof (server->server_sin));
379 server->server_sin.sin_family = AF_INET; /* network socket */
380 server->server_sin.sin_port = htons (server->port); /* on port */
381 server->server_sin.sin_addr.s_addr = htonl (INADDR_ANY); /* for hosts */
384 GST_DEBUG_OBJECT (server, "binding server socket to address");
385 ret = bind (server->server_sock.fd, (struct sockaddr *) &server->server_sin,
386 sizeof (server->server_sin));
390 /* set the server socket to nonblocking */
391 fcntl (server->server_sock.fd, F_SETFL, O_NONBLOCK);
393 GST_DEBUG_OBJECT (server, "listening on server socket %d with queue of %d",
394 server->server_sock.fd, server->backlog);
395 if (listen (server->server_sock.fd, server->backlog) == -1)
398 GST_DEBUG_OBJECT (server,
399 "listened on server socket %d, returning from connection setup",
400 server->server_sock.fd);
402 g_message ("listening on port %d", server->port);
409 GST_ERROR_OBJECT (server, "failed to create socket: %s", g_strerror (errno));
414 if (server->server_sock.fd >= 0) {
415 close (server->server_sock.fd);
416 server->server_sock.fd = -1;
418 GST_ERROR_OBJECT (server, "failed to reuse socket: %s", g_strerror (errno));
423 if (server->server_sock.fd >= 0) {
424 close (server->server_sock.fd);
425 server->server_sock.fd = -1;
427 GST_ERROR_OBJECT (server, "failed to configure keepalive socket: %s", g_strerror (errno));
432 if (server->server_sock.fd >= 0) {
433 close (server->server_sock.fd);
434 server->server_sock.fd = -1;
436 GST_ERROR_OBJECT (server, "failed to listen on socket: %s", g_strerror (errno));
441 if (server->server_sock.fd >= 0) {
442 close (server->server_sock.fd);
443 server->server_sock.fd = -1;
445 GST_ERROR_OBJECT (server, "failed to bind on socket: %s", g_strerror (errno));
450 /* default method for creating a new client object in the server to accept and
451 * handle a client connection on this server */
452 static GstRTSPClient *
453 default_accept_client (GstRTSPServer *server, GIOChannel *channel)
455 GstRTSPClient *client;
457 /* a new client connected, create a session to handle the client. */
458 client = gst_rtsp_client_new ();
460 /* set the session pool that this client should use */
461 gst_rtsp_client_set_session_pool (client, server->session_pool);
463 /* set the session pool that this client should use */
464 gst_rtsp_client_set_media_mapping (client, server->media_mapping);
466 /* accept connections for that client, this function returns after accepting
467 * the connection and will run the remainder of the communication with the
468 * client asyncronously. */
469 if (!gst_rtsp_client_accept (client, channel))
477 g_error ("Could not accept client on server socket %d: %s (%d)",
478 server->server_sock.fd, g_strerror (errno), errno);
479 gst_object_unref (client);
485 * gst_rtsp_server_io_func:
486 * @channel: a #GIOChannel
487 * @condition: the condition on @source
489 * A default #GIOFunc that creates a new #GstRTSPClient to accept and handle a
490 * new connection on @channel or @server.
492 * Returns: TRUE if the source could be connected, FALSE if an error occured.
495 gst_rtsp_server_io_func (GIOChannel *channel, GIOCondition condition, GstRTSPServer *server)
497 GstRTSPClient *client = NULL;
498 GstRTSPServerClass *klass;
500 if (condition & G_IO_IN) {
501 klass = GST_RTSP_SERVER_GET_CLASS (server);
503 /* a new client connected, create a client object to handle the client. */
504 if (klass->accept_client)
505 client = klass->accept_client (server, channel);
509 /* can unref the client now, when the request is finished, it will be
511 gst_object_unref (client);
514 g_print ("received unknown event %08x", condition);
521 GST_ERROR_OBJECT (server, "failed to create a client");
527 * gst_rtsp_server_get_io_channel:
528 * @server: a #GstRTSPServer
530 * Create a #GIOChannel for @server.
532 * Returns: the GIOChannel for @server or NULL when an error occured.
535 gst_rtsp_server_get_io_channel (GstRTSPServer *server)
537 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), NULL);
539 if (server->io_channel == NULL) {
540 if (!gst_rtsp_server_sink_init_send (server))
543 /* create IO channel for the socket */
544 server->io_channel = g_io_channel_unix_new (server->server_sock.fd);
546 return server->io_channel;
555 * gst_rtsp_server_create_watch:
556 * @server: a #GstRTSPServer
558 * Create a #GSource for @server. The new source will have a default
559 * #GIOFunc of gst_rtsp_server_io_func().
561 * Returns: the #GSource for @server or NULL when an error occured.
564 gst_rtsp_server_create_watch (GstRTSPServer *server)
566 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), NULL);
568 if (server->io_watch == NULL) {
571 channel = gst_rtsp_server_get_io_channel (server);
575 /* create a watch for reads (new connections) and possible errors */
576 server->io_watch = g_io_create_watch (channel, G_IO_IN |
577 G_IO_ERR | G_IO_HUP | G_IO_NVAL);
579 /* configure the callback */
580 g_source_set_callback (server->io_watch, (GSourceFunc) gst_rtsp_server_io_func, server, NULL);
582 return server->io_watch;
591 * gst_rtsp_server_attach:
592 * @server: a #GstRTSPServer
593 * @context: a #GMainContext
595 * Attaches @server to @context. When the mainloop for @context is run, the
596 * server will be dispatched.
598 * This function should be called when the server properties and urls are fully
599 * configured and the server is ready to start.
601 * Returns: the ID (greater than 0) for the source within the GMainContext.
604 gst_rtsp_server_attach (GstRTSPServer *server, GMainContext *context)
609 g_return_val_if_fail (GST_IS_RTSP_SERVER (server), 0);
611 source = gst_rtsp_server_create_watch (server);
615 res = g_source_attach (source, context);