1 /*****************************************************************************
2 * sgimb.c: a meta demux to parse sgimb referrer files
3 *****************************************************************************
4 * Copyright (C) 2004 VideoLAN
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
25 * This is a metademux for the Kasenna MediaBase metafile format.
26 * Kasenna MediaBase first returns this file when you are trying to access
27 * their MPEG streams (MIME: application/x-sgimb). Very few applications
28 * understand this format and the format is not really documented on the net.
29 * Following a typical MediaBase file. Notice the sgi prefix of all the elements.
30 * This stems from the fact that the MediaBase servers were first introduced by SGI?????.
32 * sgiNameServerHost=host.name.tld
33 * Obvious: the host hosting this stream
34 * Stream="xdma://host.name.tld/demo/a_very_cool.mpg"
35 * Not always present. xdma can be read as RTSP.
36 * sgiMovieName=/demo/a_very_cool.mpg
37 * The path to the asset
39 * AuxState=2 is always Video On Demand (so not Scheduled)
40 * Not present with Live streams
41 * sgiLiveFeed=True|False
42 * Denounces if the stream is live or from assets (Canned?)
43 * Live appears as a little sattelite dish in the web interface of Kasenna
44 * sgiFormatName=PARTNER_41_MPEG-4
45 * The type of stream. One of:
46 * PARTNER_41_MPEG-4 (RTSP MPEG-4 fully compliant)
47 * MPEG1-Audio (MP3 Audio streams in MPEG TS)
48 * MPEG-1 (MPEG 1 A/V in MPEG TS)
49 * MPEG-2 (MPEG 2 A/V in MPEG TS)
51 * The width of the to be received stream. Only present if stream is not Live.
53 * The height of the to be received stream. Only present if stream is not Live.
55 * The bitrate of the to be received stream. Only present if stream is not Live.
56 * sgiDuration=378345000
57 * The duration of the to be received stream. Only present if stream is not Live.
60 * rtsp://host.name.tld/demo/a_very_cool.mpg
62 * Sometimes present. QT will recognize this as a RTSP reference file, if present.
63 * sgiApplicationName=MediaBaseURL
66 * Time passed since the asset was started (resets for repeating non live assets?)
67 * sgiMulticastAddress=233.81.233.15
68 * The multicast IP used for the Multicast feed.
69 * Also defines if a stream is multicast or not. (blue dot in kasenna web interface)
70 * sgiMulticastPort=1234
71 * The multicast port for the same Multicast feed.
73 * The packetsize of the UDP frames that Kasenna sends. They should have used a default
74 * that is a multiple of 188 (TS frame size). Most networks don't support more than 1500 anyways.
75 * Also, when you loose a frame of this size, imagecorruption is more likely then with smaller
77 * sgiServerVersion=6.1.2
78 * Version of the server
80 * TCP port used for RTSP communication
82 * Start playing automatically
84 * Simulcasted (scheduled unicast) content. (Green dot in Kasenna web interface)
85 * sgiShowingName=A nice name that everyone likes
86 * A human readible descriptive title for this stream.
88 * Looks like this is the ID of the scheduled asset?
89 * sgiUserAccount=pid=1724&time=1078527309&displayText=You%20are%20logged%20as%20guest&
90 * User Authentication. Above is a default guest entry. Not required for RTSP communication.
94 *****************************************************************************/
97 /*****************************************************************************
99 *****************************************************************************/
100 #include <stdlib.h> /* malloc(), free() */
103 #include <vlc/input.h>
104 #include <vlc_playlist.h>
106 /*****************************************************************************
108 *****************************************************************************/
109 static int Activate ( vlc_object_t * );
110 static void Deactivate( vlc_object_t * );
113 set_description( _("Kasenna MediaBase metademux") );
114 set_capability( "demux2", 170 );
115 set_callbacks( Activate, Deactivate );
116 add_shortcut( "sgimb" );
119 /*****************************************************************************
121 *****************************************************************************/
122 #define MAX_LINE 1024
126 char *psz_uri; /* Stream= or sgiQTFileBegin rtsp link */
127 char *psz_server; /* sgiNameServerHost= */
128 char *psz_location; /* sgiMovieName= */
129 char *psz_name; /* sgiShowingName= */
130 char *psz_user; /* sgiUserAccount= */
131 char *psz_password; /* sgiUserPassword= */
132 char *psz_mcast_ip; /* sgiMulticastAddress= */
133 int i_mcast_port; /* sgiMulticastPort= */
134 int i_packet_size; /* sgiPacketSize= */
135 mtime_t i_duration; /* sgiDuration= */
136 int i_port; /* sgiRtspPort= */
137 int i_sid; /* sgiSid= */
138 vlc_bool_t b_concert; /* DeliveryService=cds */
139 vlc_bool_t b_rtsp_kasenna; /* kasenna style RTSP */
142 static int Demux ( demux_t *p_demux );
143 static int Control( demux_t *p_demux, int i_query, va_list args );
145 /*****************************************************************************
146 * Activate: initializes m3u demux structures
147 *****************************************************************************/
148 static int Activate( vlc_object_t * p_this )
150 demux_t *p_demux = (demux_t *)p_this;
155 /* Lets check the content to see if this is a sgi mediabase file */
156 i_size = stream_Peek( p_demux->s, &p_peek, MAX_LINE );
157 i_size -= sizeof("sgiNameServerHost=") - 1;
160 while ( i_size && strncasecmp( p_peek, "sgiNameServerHost=",
161 sizeof("sgiNameServerHost=") - 1 ) )
166 if ( !strncasecmp( p_peek, "sgiNameServerHost=",
167 sizeof("sgiNameServerHost=") -1 ) )
169 p_demux->pf_demux = Demux;
170 p_demux->pf_control = Control;
172 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
173 p_sys->psz_uri = NULL;
174 p_sys->psz_server = NULL;
175 p_sys->psz_location = NULL;
176 p_sys->psz_name = NULL;
177 p_sys->psz_user = NULL;
178 p_sys->psz_password = NULL;
179 p_sys->psz_mcast_ip = NULL;
180 p_sys->i_mcast_port = 0;
181 p_sys->i_packet_size = 0;
182 p_sys->i_duration = 0;
185 p_sys->b_rtsp_kasenna = VLC_FALSE;
186 p_sys->b_concert = VLC_FALSE;
194 /*****************************************************************************
195 * Deactivate: frees unused data
196 *****************************************************************************/
197 static void Deactivate( vlc_object_t *p_this )
199 demux_t *p_demux = (demux_t*)p_this;
200 demux_sys_t *p_sys = p_demux->p_sys;
202 free( p_sys->psz_uri );
203 if( p_sys->psz_server )
204 free( p_sys->psz_server );
205 if( p_sys->psz_location )
206 free( p_sys->psz_location );
207 if( p_sys->psz_name )
208 free( p_sys->psz_name );
209 if( p_sys->psz_user )
210 free( p_sys->psz_user );
211 if( p_sys->psz_password )
212 free( p_sys->psz_password );
213 if( p_sys->psz_mcast_ip )
214 free( p_sys->psz_mcast_ip );
215 free( p_demux->p_sys );
219 static int ParseLine ( demux_t *p_demux, char *psz_line )
222 demux_sys_t *p_sys = p_demux->p_sys;
226 /* Remove unnecessary tabs or spaces at the beginning of line */
227 while( *psz_bol == ' ' || *psz_bol == '\t' ||
228 *psz_bol == '\n' || *psz_bol == '\r' )
233 if( !strncasecmp( psz_bol, "rtsp://", sizeof("rtsp://") - 1 ) )
235 /* We found the link, it was inside a sgiQTFileBegin */
236 p_sys->psz_uri = strdup( psz_bol );
238 else if( !strncasecmp( psz_bol, "Stream=\"", sizeof("Stream=\"") - 1 ) )
240 psz_bol += sizeof("Stream=\"") - 1;
243 strrchr( psz_bol, '"' )[0] = '\0';
244 /* We cheat around xdma. for some reason xdma links work different then rtsp */
245 if( !strncasecmp( psz_bol, "xdma://", sizeof("xdma://") - 1 ) )
252 p_sys->psz_uri = strdup( psz_bol );
254 else if( !strncasecmp( psz_bol, "sgiNameServerHost=", sizeof("sgiNameServerHost=") - 1 ) )
256 psz_bol += sizeof("sgiNameServerHost=") - 1;
257 p_sys->psz_server = strdup( psz_bol );
259 else if( !strncasecmp( psz_bol, "sgiMovieName=", sizeof("sgiMovieName=") - 1 ) )
261 psz_bol += sizeof("sgiMovieName=") - 1;
262 p_sys->psz_location = strdup( psz_bol );
264 else if( !strncasecmp( psz_bol, "sgiUserAccount=", sizeof("sgiUserAccount=") - 1 ) )
266 psz_bol += sizeof("sgiUserAccount=") - 1;
267 p_sys->psz_user = strdup( psz_bol );
269 else if( !strncasecmp( psz_bol, "sgiUserPassword=", sizeof("sgiUserPassword=") - 1 ) )
271 psz_bol += sizeof("sgiUserPassword=") - 1;
272 p_sys->psz_password = strdup( psz_bol );
274 else if( !strncasecmp( psz_bol, "sgiShowingName=", sizeof("sgiShowingName=") - 1 ) )
276 psz_bol += sizeof("sgiShowingName=") - 1;
277 p_sys->psz_name = strdup( psz_bol );
279 else if( !strncasecmp( psz_bol, "sgiFormatName=", sizeof("sgiFormatName=") - 1 ) )
281 psz_bol += sizeof("sgiFormatName=") - 1;
282 if( !strcasestr( psz_bol, "MPEG-4") ) /*not mpeg4 */
283 p_sys->b_rtsp_kasenna = VLC_TRUE;
285 else if( !strncasecmp( psz_bol, "sgiMulticastAddress=", sizeof("sgiMulticastAddress=") - 1 ) )
287 psz_bol += sizeof("sgiMulticastAddress=") - 1;
288 p_sys->psz_mcast_ip = strdup( psz_bol );
290 else if( !strncasecmp( psz_bol, "sgiMulticastPort=", sizeof("sgiMulticastPort=") - 1 ) )
292 psz_bol += sizeof("sgiMulticastPort=") - 1;
293 p_sys->i_mcast_port = (int) strtol( psz_bol, NULL, 0 );
295 else if( !strncasecmp( psz_bol, "sgiPacketSize=", sizeof("sgiPacketSize=") - 1 ) )
297 psz_bol += sizeof("sgiPacketSize=") - 1;
298 p_sys->i_packet_size = (int) strtol( psz_bol, NULL, 0 );
300 else if( !strncasecmp( psz_bol, "sgiDuration=", sizeof("sgiDuration=") - 1 ) )
302 psz_bol += sizeof("sgiDuration=") - 1;
303 p_sys->i_duration = (mtime_t) strtol( psz_bol, NULL, 0 );
305 else if( !strncasecmp( psz_bol, "sgiRtspPort=", sizeof("sgiRtspPort=") - 1 ) )
307 psz_bol += sizeof("sgiRtspPort=") - 1;
308 p_sys->i_port = (int) strtol( psz_bol, NULL, 0 );
310 else if( !strncasecmp( psz_bol, "sgiSid=", sizeof("sgiSid=") - 1 ) )
312 psz_bol += sizeof("sgiSid=") - 1;
313 p_sys->i_sid = (int) strtol( psz_bol, NULL, 0 );
315 else if( !strncasecmp( psz_bol, "DeliveryService=cds", sizeof("DeliveryService=cds") - 1 ) )
317 p_sys->b_concert = VLC_TRUE;
321 /* This line isn't really important */
327 /*****************************************************************************
328 * Demux: reads and demuxes data packets
329 *****************************************************************************
330 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
331 *****************************************************************************/
332 static int Demux ( demux_t *p_demux )
334 demux_sys_t *p_sys = p_demux->p_sys;
335 playlist_t *p_playlist;
336 playlist_item_t *p_item;
341 p_playlist = (playlist_t *) vlc_object_find( p_demux, VLC_OBJECT_PLAYLIST,
345 msg_Err( p_demux, "can't find playlist" );
349 p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
350 i_position = p_playlist->i_index + 1;
352 while( ( psz_line = stream_ReadLine( p_demux->s ) ) )
354 ParseLine( p_demux, psz_line );
355 if( psz_line ) free( psz_line );
358 if( p_sys->psz_mcast_ip )
360 /* Definetly schedules multicast session */
361 /* We don't care if it's live or not */
364 asprintf( &temp, "udp://@" "%s:%i", p_sys->psz_mcast_ip, p_sys->i_mcast_port );
365 if( p_sys->psz_uri ) free( p_sys->psz_uri );
366 p_sys->psz_uri = strdup( temp );
370 if( p_sys->psz_uri == NULL )
372 if( p_sys->psz_server && p_sys->psz_location )
376 asprintf( &temp, "rtsp://" "%s:%i%s",
377 p_sys->psz_server, p_sys->i_port > 0 ? p_sys->i_port : 554, p_sys->psz_location );
379 p_sys->psz_uri = strdup( temp );
384 if( p_sys->b_concert )
386 /* It's definetly a simulcasted scheduled stream */
387 /* We don't care if it's live or not */
390 if( p_sys->psz_uri == NULL )
392 msg_Err( p_demux, "no URI was found" );
396 asprintf( &temp, "%s%%3FMeDiAbAsEshowingId=%d%%26MeDiAbAsEconcert%%3FMeDiAbAsE",
397 p_sys->psz_uri, p_sys->i_sid );
399 free( p_sys->psz_uri );
400 p_sys->psz_uri = strdup( temp );
404 p_item = playlist_ItemNew( p_playlist, p_sys->psz_uri,
405 p_sys->psz_name ? p_sys->psz_name : p_sys->psz_uri );
407 if( !p_item || !p_item->input.psz_uri )
409 msg_Err( p_demux, "A valid playlistitem could not be created" );
413 if( p_sys->i_packet_size && p_sys->psz_mcast_ip )
416 p_sys->i_packet_size += 1000;
417 asprintf( &psz_option, "mtu=%i", p_sys->i_packet_size );
418 playlist_ItemAddOption( p_item, psz_option );
421 if( !p_sys->psz_mcast_ip )
424 asprintf( &psz_option, "rtsp-caching=5000" );
425 playlist_ItemAddOption( p_item, psz_option );
428 if( !p_sys->psz_mcast_ip && p_sys->b_rtsp_kasenna )
431 asprintf( &psz_option, "rtsp-kasenna" );
432 playlist_ItemAddOption( p_item, psz_option );
436 playlist_ItemSetDuration( p_item, p_sys->i_duration );
437 playlist_AddItem( p_playlist, p_item, PLAYLIST_INSERT, i_position );
439 vlc_object_release( p_playlist );
443 static int Control( demux_t *p_demux, int i_query, va_list args )