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.
21 #include <gst/rtsp/gstrtsprange.h>
22 #include <gst/rtsp/gstrtspurl.h>
24 #ifndef __GST_RTSP_MEDIA_H__
25 #define __GST_RTSP_MEDIA_H__
29 /* types for the media */
30 #define GST_TYPE_RTSP_MEDIA (gst_rtsp_media_get_type ())
31 #define GST_IS_RTSP_MEDIA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_MEDIA))
32 #define GST_IS_RTSP_MEDIA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_MEDIA))
33 #define GST_RTSP_MEDIA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_MEDIA, GstRTSPMediaClass))
34 #define GST_RTSP_MEDIA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_MEDIA, GstRTSPMedia))
35 #define GST_RTSP_MEDIA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_MEDIA, GstRTSPMediaClass))
36 #define GST_RTSP_MEDIA_CAST(obj) ((GstRTSPMedia*)(obj))
37 #define GST_RTSP_MEDIA_CLASS_CAST(klass) ((GstRTSPMediaClass*)(klass))
39 typedef struct _GstRTSPMediaStream GstRTSPMediaStream;
40 typedef struct _GstRTSPMedia GstRTSPMedia;
41 typedef struct _GstRTSPMediaClass GstRTSPMediaClass;
42 typedef struct _GstRTSPMediaTrans GstRTSPMediaTrans;
44 typedef gboolean (*GstRTSPSendFunc) (GstBuffer *buffer, guint8 channel, gpointer user_data);
45 typedef void (*GstRTSPKeepAliveFunc) (gpointer user_data);
49 * @idx: a stream index
50 * @send_rtp: callback for sending RTP messages
51 * @send_rtcp: callback for sending RTCP messages
52 * @user_data: user data passed in the callbacks
53 * @notify: free function for the user_data.
54 * @keep_alive: keep alive callback
55 * @ka_user_data: data passed to @keep_alive
56 * @ka_notify: called when @ka_user_data is freed
57 * @active: if we are actively sending
58 * @timeout: if we timed out
59 * @transport: a transport description
60 * @rtpsource: the receiver rtp source object
62 * A Transport description for stream @idx
64 struct _GstRTSPMediaTrans {
67 GstRTSPSendFunc send_rtp;
68 GstRTSPSendFunc send_rtcp;
70 GDestroyNotify notify;
72 GstRTSPKeepAliveFunc keep_alive;
73 gpointer ka_user_data;
74 GDestroyNotify ka_notify;
78 GstRTSPTransport *transport;
85 * @srcpad: the srcpad of the stream
86 * @payloader: the payloader of the format
87 * @prepared: if the stream is prepared for streaming
88 * @server_port: the server udp ports
89 * @recv_rtp_sink: sinkpad for RTP buffers
90 * @recv_rtcp_sink: sinkpad for RTCP buffers
91 * @recv_rtp_src: srcpad for RTP buffers
92 * @recv_rtcp_src: srcpad for RTCP buffers
93 * @udpsrc: the udp source elements for RTP/RTCP
94 * @udpsink: the udp sink elements for RTP/RTCP
95 * @appsrc: the app source elements for RTP/RTCP
96 * @appsink: the app sink elements for RTP/RTCP
97 * @server_port: the server ports for this stream
98 * @caps_sig: the signal id for detecting caps
99 * @caps: the caps of the stream
100 * @tranports: the current transports being streamed
102 * The definition of a media stream. The streams are identified by @id.
104 struct _GstRTSPMediaStream {
106 GstElement *payloader;
109 /* pads on the rtpbin */
110 GstPad *recv_rtcp_sink;
111 GstPad *recv_rtp_sink;
112 GstPad *send_rtp_sink;
113 GstPad *send_rtp_src;
114 GstPad *send_rtcp_src;
116 /* the RTPSession object */
119 /* sinks used for sending and receiving RTP and RTCP, they share
121 GstElement *udpsrc[2];
122 GstElement *udpsink[2];
123 /* for TCP transport */
124 GstElement *appsrc[2];
125 GstElement *appsink[2];
128 GstElement *selector[2];
130 /* server ports for sending/receiving */
131 GstRTSPRange server_port;
133 /* the caps of the stream */
137 /* transports we stream to */
140 /* to filter out duplicate destinations in case multiudpsink is too old to do
142 gboolean filter_duplicates;
147 * GstRTSPMediaStatus:
148 * @GST_RTSP_MEDIA_STATUS_UNPREPARED: media pipeline not prerolled
149 * @GST_RTSP_MEDIA_STATUS_PREPARING: media pipeline is prerolling
150 * @GST_RTSP_MEDIA_STATUS_PREPARED: media pipeline is prerolled
151 * @GST_RTSP_MEDIA_STATUS_ERROR: media pipeline is in error
153 * The state of the media pipeline.
156 GST_RTSP_MEDIA_STATUS_UNPREPARED = 0,
157 GST_RTSP_MEDIA_STATUS_PREPARING = 1,
158 GST_RTSP_MEDIA_STATUS_PREPARED = 2,
159 GST_RTSP_MEDIA_STATUS_ERROR = 3
160 } GstRTSPMediaStatus;
164 * @lock: for protecting the object
165 * @cond: for signaling the object
166 * @shared: if this media can be shared between clients
167 * @reusable: if this media can be reused after an unprepare
168 * @protocols: the allowed lower transport for this stream
169 * @reused: if this media has been reused
170 * @is_ipv6: if this media is using ipv6
171 * @element: the data providing element
172 * @streams: the different streams provided by @element
173 * @dynamic: list of dynamic elements managed by @element
174 * @status: the status of the media pipeline
175 * @active: the number of active connections
176 * @pipeline: the toplevel pipeline
177 * @fakesink: for making state changes async
178 * @source: the bus watch for pipeline messages.
179 * @id: the id of the watch
180 * @is_live: if the pipeline is live
181 * @buffering: if the pipeline is buffering
182 * @target_state: the desired target state of the pipeline
183 * @rtpbin: the rtpbin
184 * @range: the range of the media being streamed
186 * A class that contains the GStreamer element along with a list of
187 * #GstRTSPMediaStream objects that can produce data.
189 * This object is usually created from a #GstRTSPMediaFactory.
191 struct _GstRTSPMedia {
199 GstRTSPLowerTrans protocols;
202 gboolean eos_shutdown;
207 GstRTSPMediaStatus status;
209 gboolean eos_pending;
212 /* the pipeline for the media */
213 GstElement *pipeline;
214 GstElement *fakesink;
220 GstState target_state;
222 /* RTP session manager */
225 /* the range of media */
226 GstRTSPTimeRange range;
231 * @context: the main context for dispatching messages
232 * @loop: the mainloop for message.
233 * @thread: the thread dispatching messages.
234 * @handle_message: handle a message
235 * @unprepare: the default implementation sets the pipeline's state
238 * The RTSP media class
240 struct _GstRTSPMediaClass {
241 GObjectClass parent_class;
243 /* thread for the mainloop */
244 GMainContext *context;
249 gboolean (*handle_message) (GstRTSPMedia *media, GstMessage *message);
250 gboolean (*unprepare) (GstRTSPMedia *media);
253 gboolean (*prepared) (GstRTSPMedia *media);
254 gboolean (*unprepared) (GstRTSPMedia *media);
256 gboolean (*new_state) (GstRTSPMedia *media, GstState state);
259 GType gst_rtsp_media_get_type (void);
261 /* creating the media */
262 GstRTSPMedia * gst_rtsp_media_new (void);
264 void gst_rtsp_media_set_shared (GstRTSPMedia *media, gboolean shared);
265 gboolean gst_rtsp_media_is_shared (GstRTSPMedia *media);
267 void gst_rtsp_media_set_reusable (GstRTSPMedia *media, gboolean reusable);
268 gboolean gst_rtsp_media_is_reusable (GstRTSPMedia *media);
270 void gst_rtsp_media_set_protocols (GstRTSPMedia *media, GstRTSPLowerTrans protocols);
271 GstRTSPLowerTrans gst_rtsp_media_get_protocols (GstRTSPMedia *media);
273 void gst_rtsp_media_set_eos_shutdown (GstRTSPMedia *media, gboolean eos_shutdown);
274 gboolean gst_rtsp_media_is_eos_shutdown (GstRTSPMedia *media);
276 /* prepare the media for playback */
277 gboolean gst_rtsp_media_prepare (GstRTSPMedia *media);
278 gboolean gst_rtsp_media_is_prepared (GstRTSPMedia *media);
279 gboolean gst_rtsp_media_unprepare (GstRTSPMedia *media);
281 /* dealing with the media */
282 guint gst_rtsp_media_n_streams (GstRTSPMedia *media);
283 GstRTSPMediaStream * gst_rtsp_media_get_stream (GstRTSPMedia *media, guint idx);
285 gboolean gst_rtsp_media_seek (GstRTSPMedia *media, GstRTSPTimeRange *range);
286 gchar * gst_rtsp_media_get_range_string (GstRTSPMedia *media, gboolean play);
288 GstFlowReturn gst_rtsp_media_stream_rtp (GstRTSPMediaStream *stream, GstBuffer *buffer);
289 GstFlowReturn gst_rtsp_media_stream_rtcp (GstRTSPMediaStream *stream, GstBuffer *buffer);
291 gboolean gst_rtsp_media_set_state (GstRTSPMedia *media, GstState state, GArray *transports);
293 void gst_rtsp_media_remove_elements (GstRTSPMedia *media);
295 void gst_rtsp_media_trans_cleanup (GstRTSPMediaTrans *trans);
299 #endif /* __GST_RTSP_MEDIA_H__ */