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;
86 * @srcpad: the srcpad of the stream
87 * @payloader: the payloader of the format
88 * @prepared: if the stream is prepared for streaming
89 * @server_port: the server udp ports
90 * @recv_rtp_sink: sinkpad for RTP buffers
91 * @recv_rtcp_sink: sinkpad for RTCP buffers
92 * @recv_rtp_src: srcpad for RTP buffers
93 * @recv_rtcp_src: srcpad for RTCP buffers
94 * @udpsrc: the udp source elements for RTP/RTCP
95 * @udpsink: the udp sink elements for RTP/RTCP
96 * @appsrc: the app source elements for RTP/RTCP
97 * @appsink: the app sink elements for RTP/RTCP
98 * @server_port: the server ports for this stream
99 * @caps_sig: the signal id for detecting caps
100 * @caps: the caps of the stream
101 * @tranports: the current transports being streamed
103 * The definition of a media stream. The streams are identified by @id.
105 struct _GstRTSPMediaStream {
107 GstElement *payloader;
110 /* pads on the rtpbin */
111 GstPad *recv_rtcp_sink;
112 GstPad *recv_rtp_sink;
113 GstPad *send_rtp_sink;
114 GstPad *send_rtp_src;
115 GstPad *send_rtcp_src;
117 /* the RTPSession object */
120 /* sinks used for sending and receiving RTP and RTCP, they share
122 GstElement *udpsrc[2];
123 GstElement *udpsink[2];
124 /* for TCP transport */
125 GstElement *appsrc[2];
126 GstElement *appsink[2];
129 GstElement *selector[2];
131 /* server ports for sending/receiving */
132 GstRTSPRange server_port;
134 /* the caps of the stream */
138 /* transports we stream to */
143 * GstRTSPMediaStatus:
144 * @GST_RTSP_MEDIA_STATUS_UNPREPARED: media pipeline not prerolled
145 * @GST_RTSP_MEDIA_STATUS_PREPARING: media pipeline is prerolling
146 * @GST_RTSP_MEDIA_STATUS_PREPARED: media pipeline is prerolled
147 * @GST_RTSP_MEDIA_STATUS_ERROR: media pipeline is in error
149 * The state of the media pipeline.
152 GST_RTSP_MEDIA_STATUS_UNPREPARED = 0,
153 GST_RTSP_MEDIA_STATUS_PREPARING = 1,
154 GST_RTSP_MEDIA_STATUS_PREPARED = 2,
155 GST_RTSP_MEDIA_STATUS_ERROR = 3
156 } GstRTSPMediaStatus;
160 * @lock: for protecting the object
161 * @cond: for signaling the object
162 * @shared: if this media can be shared between clients
163 * @reusable: if this media can be reused after an unprepare
164 * @protocols: the allowed lower transport for this stream
165 * @reused: if this media has been reused
166 * @is_ipv6: if this media is using ipv6
167 * @element: the data providing element
168 * @streams: the different streams provided by @element
169 * @dynamic: list of dynamic elements managed by @element
170 * @status: the status of the media pipeline
171 * @active: the number of active connections
172 * @pipeline: the toplevel pipeline
173 * @fakesink: for making state changes async
174 * @source: the bus watch for pipeline messages.
175 * @id: the id of the watch
176 * @is_live: if the pipeline is live
177 * @buffering: if the pipeline is buffering
178 * @target_state: the desired target state of the pipeline
179 * @rtpbin: the rtpbin
180 * @range: the range of the media being streamed
182 * A class that contains the GStreamer element along with a list of
183 * #GstRTSPediaStream objects that can produce data.
185 * This object is usually created from a #GstRTSPMediaFactory.
187 struct _GstRTSPMedia {
195 GstRTSPLowerTrans protocols;
202 GstRTSPMediaStatus status;
205 /* the pipeline for the media */
206 GstElement *pipeline;
207 GstElement *fakesink;
213 GstState target_state;
215 /* RTP session manager */
218 /* the range of media */
219 GstRTSPTimeRange range;
224 * @context: the main context for dispatching messages
225 * @loop: the mainloop for message.
226 * @thread: the thread dispatching messages.
227 * @handle_message: handle a message
228 * @unprepare: the default implementation sets the pipeline's state
231 * The RTSP media class
233 struct _GstRTSPMediaClass {
234 GObjectClass parent_class;
236 /* thread for the mainloop */
237 GMainContext *context;
242 gboolean (*handle_message) (GstRTSPMedia *media, GstMessage *message);
243 gboolean (*unprepare) (GstRTSPMedia *media);
246 gboolean (*unprepared) (GstRTSPMedia *media);
249 GType gst_rtsp_media_get_type (void);
251 /* creating the media */
252 GstRTSPMedia * gst_rtsp_media_new (void);
254 void gst_rtsp_media_set_shared (GstRTSPMedia *media, gboolean shared);
255 gboolean gst_rtsp_media_is_shared (GstRTSPMedia *media);
257 void gst_rtsp_media_set_reusable (GstRTSPMedia *media, gboolean reusable);
258 gboolean gst_rtsp_media_is_reusable (GstRTSPMedia *media);
260 void gst_rtsp_media_set_protocols (GstRTSPMedia *media, GstRTSPLowerTrans protocols);
261 GstRTSPLowerTrans gst_rtsp_media_get_protocols (GstRTSPMedia *media);
263 /* prepare the media for playback */
264 gboolean gst_rtsp_media_prepare (GstRTSPMedia *media);
265 gboolean gst_rtsp_media_is_prepared (GstRTSPMedia *media);
266 gboolean gst_rtsp_media_unprepare (GstRTSPMedia *media);
268 /* dealing with the media */
269 guint gst_rtsp_media_n_streams (GstRTSPMedia *media);
270 GstRTSPMediaStream * gst_rtsp_media_get_stream (GstRTSPMedia *media, guint idx);
272 gboolean gst_rtsp_media_seek (GstRTSPMedia *media, GstRTSPTimeRange *range);
274 GstFlowReturn gst_rtsp_media_stream_rtp (GstRTSPMediaStream *stream, GstBuffer *buffer);
275 GstFlowReturn gst_rtsp_media_stream_rtcp (GstRTSPMediaStream *stream, GstBuffer *buffer);
277 gboolean gst_rtsp_media_set_state (GstRTSPMedia *media, GstState state, GArray *trans);
279 void gst_rtsp_media_remove_elements (GstRTSPMedia *media);
283 #endif /* __GST_RTSP_MEDIA_H__ */