1 /*****************************************************************************
2 * sgimb.c: a meta demux to parse sgimb referrer files
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, 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 lose 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 "playlist.h"
106 /*****************************************************************************
108 *****************************************************************************/
109 #define MAX_LINE 1024
113 char *psz_uri; /* Stream= or sgiQTFileBegin rtsp link */
114 char *psz_server; /* sgiNameServerHost= */
115 char *psz_location; /* sgiMovieName= */
116 char *psz_name; /* sgiShowingName= */
117 char *psz_user; /* sgiUserAccount= */
118 char *psz_password; /* sgiUserPassword= */
119 char *psz_mcast_ip; /* sgiMulticastAddress= */
120 int i_mcast_port; /* sgiMulticastPort= */
121 int i_packet_size; /* sgiPacketSize= */
122 mtime_t i_duration; /* sgiDuration= */
123 int i_port; /* sgiRtspPort= */
124 int i_sid; /* sgiSid= */
125 vlc_bool_t b_concert; /* DeliveryService=cds */
126 vlc_bool_t b_rtsp_kasenna; /* kasenna style RTSP */
129 static int Demux ( demux_t *p_demux );
130 static int Control( demux_t *p_demux, int i_query, va_list args );
132 /*****************************************************************************
133 * Activate: initializes m3u demux structures
134 *****************************************************************************/
135 int E_(Import_SGIMB)( vlc_object_t * p_this )
137 demux_t *p_demux = (demux_t *)p_this;
141 /* Lets check the content to see if this is a sgi mediabase file */
142 i_size = stream_Peek( p_demux->s, &p_peek, MAX_LINE );
143 i_size -= sizeof("sgiNameServerHost=") - 1;
146 unsigned int i_len = sizeof("sgiNameServerHost=") - 1;
147 while ( i_size && strncasecmp( (char *)p_peek, "sgiNameServerHost=", i_len ) )
152 if ( !strncasecmp( (char *)p_peek, "sgiNameServerHost=", i_len ) )
154 STANDARD_DEMUX_INIT_MSG( "using SGIMB playlist reader" );
155 p_demux->p_sys->psz_uri = NULL;
156 p_demux->p_sys->psz_server = NULL;
157 p_demux->p_sys->psz_location = NULL;
158 p_demux->p_sys->psz_name = NULL;
159 p_demux->p_sys->psz_user = NULL;
160 p_demux->p_sys->psz_password = NULL;
161 p_demux->p_sys->psz_mcast_ip = NULL;
162 p_demux->p_sys->i_mcast_port = 0;
163 p_demux->p_sys->i_packet_size = 0;
164 p_demux->p_sys->i_duration = 0;
165 p_demux->p_sys->i_port = 0;
166 p_demux->p_sys->i_sid = 0;
167 p_demux->p_sys->b_rtsp_kasenna = VLC_FALSE;
168 p_demux->p_sys->b_concert = VLC_FALSE;
176 /*****************************************************************************
177 * Deactivate: frees unused data
178 *****************************************************************************/
179 void E_(Close_SGIMB)( vlc_object_t *p_this )
181 demux_t *p_demux = (demux_t*)p_this;
182 demux_sys_t *p_sys = p_demux->p_sys;
184 free( p_sys->psz_uri );
185 if( p_sys->psz_server )
186 free( p_sys->psz_server );
187 if( p_sys->psz_location )
188 free( p_sys->psz_location );
189 if( p_sys->psz_name )
190 free( p_sys->psz_name );
191 if( p_sys->psz_user )
192 free( p_sys->psz_user );
193 if( p_sys->psz_password )
194 free( p_sys->psz_password );
195 if( p_sys->psz_mcast_ip )
196 free( p_sys->psz_mcast_ip );
197 free( p_demux->p_sys );
201 static int ParseLine ( demux_t *p_demux, char *psz_line )
204 demux_sys_t *p_sys = p_demux->p_sys;
208 /* Remove unnecessary tabs or spaces at the beginning of line */
209 while( *psz_bol == ' ' || *psz_bol == '\t' ||
210 *psz_bol == '\n' || *psz_bol == '\r' )
215 if( !strncasecmp( psz_bol, "rtsp://", sizeof("rtsp://") - 1 ) )
217 /* We found the link, it was inside a sgiQTFileBegin */
218 p_sys->psz_uri = strdup( psz_bol );
220 else if( !strncasecmp( psz_bol, "Stream=\"", sizeof("Stream=\"") - 1 ) )
222 psz_bol += sizeof("Stream=\"") - 1;
225 strrchr( psz_bol, '"' )[0] = '\0';
226 /* We cheat around xdma. for some reason xdma links work different then rtsp */
227 if( !strncasecmp( psz_bol, "xdma://", sizeof("xdma://") - 1 ) )
234 p_sys->psz_uri = strdup( psz_bol );
236 else if( !strncasecmp( psz_bol, "sgiNameServerHost=", sizeof("sgiNameServerHost=") - 1 ) )
238 psz_bol += sizeof("sgiNameServerHost=") - 1;
239 p_sys->psz_server = strdup( psz_bol );
241 else if( !strncasecmp( psz_bol, "sgiMovieName=", sizeof("sgiMovieName=") - 1 ) )
243 psz_bol += sizeof("sgiMovieName=") - 1;
244 p_sys->psz_location = strdup( psz_bol );
246 else if( !strncasecmp( psz_bol, "sgiUserAccount=", sizeof("sgiUserAccount=") - 1 ) )
248 psz_bol += sizeof("sgiUserAccount=") - 1;
249 p_sys->psz_user = strdup( psz_bol );
251 else if( !strncasecmp( psz_bol, "sgiUserPassword=", sizeof("sgiUserPassword=") - 1 ) )
253 psz_bol += sizeof("sgiUserPassword=") - 1;
254 p_sys->psz_password = strdup( psz_bol );
256 else if( !strncasecmp( psz_bol, "sgiShowingName=", sizeof("sgiShowingName=") - 1 ) )
258 psz_bol += sizeof("sgiShowingName=") - 1;
259 p_sys->psz_name = strdup( psz_bol );
261 else if( !strncasecmp( psz_bol, "sgiFormatName=", sizeof("sgiFormatName=") - 1 ) )
263 psz_bol += sizeof("sgiFormatName=") - 1;
264 if( strcasestr( psz_bol, "MPEG-4") == NULL ) /*not mpeg4 found in string */
265 p_sys->b_rtsp_kasenna = VLC_TRUE;
267 else if( !strncasecmp( psz_bol, "sgiMulticastAddress=", sizeof("sgiMulticastAddress=") - 1 ) )
269 psz_bol += sizeof("sgiMulticastAddress=") - 1;
270 p_sys->psz_mcast_ip = strdup( psz_bol );
272 else if( !strncasecmp( psz_bol, "sgiMulticastPort=", sizeof("sgiMulticastPort=") - 1 ) )
274 psz_bol += sizeof("sgiMulticastPort=") - 1;
275 p_sys->i_mcast_port = (int) strtol( psz_bol, NULL, 0 );
277 else if( !strncasecmp( psz_bol, "sgiPacketSize=", sizeof("sgiPacketSize=") - 1 ) )
279 psz_bol += sizeof("sgiPacketSize=") - 1;
280 p_sys->i_packet_size = (int) strtol( psz_bol, NULL, 0 );
282 else if( !strncasecmp( psz_bol, "sgiDuration=", sizeof("sgiDuration=") - 1 ) )
284 psz_bol += sizeof("sgiDuration=") - 1;
285 p_sys->i_duration = (mtime_t) strtol( psz_bol, NULL, 0 );
287 else if( !strncasecmp( psz_bol, "sgiRtspPort=", sizeof("sgiRtspPort=") - 1 ) )
289 psz_bol += sizeof("sgiRtspPort=") - 1;
290 p_sys->i_port = (int) strtol( psz_bol, NULL, 0 );
292 else if( !strncasecmp( psz_bol, "sgiSid=", sizeof("sgiSid=") - 1 ) )
294 psz_bol += sizeof("sgiSid=") - 1;
295 p_sys->i_sid = (int) strtol( psz_bol, NULL, 0 );
297 else if( !strncasecmp( psz_bol, "DeliveryService=cds", sizeof("DeliveryService=cds") - 1 ) )
299 p_sys->b_concert = VLC_TRUE;
303 /* This line isn't really important */
309 /*****************************************************************************
310 * Demux: reads and demuxes data packets
311 *****************************************************************************
312 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
313 *****************************************************************************/
314 static int Demux ( demux_t *p_demux )
316 demux_sys_t *p_sys = p_demux->p_sys;
317 input_item_t *p_child = NULL;
322 while( ( psz_line = stream_ReadLine( p_demux->s ) ) )
324 ParseLine( p_demux, psz_line );
325 if( psz_line ) free( psz_line );
328 if( p_sys->psz_mcast_ip )
330 /* Definetly schedules multicast session */
331 /* We don't care if it's live or not */
334 asprintf( &temp, "udp://@" "%s:%i", p_sys->psz_mcast_ip, p_sys->i_mcast_port );
335 if( p_sys->psz_uri ) free( p_sys->psz_uri );
336 p_sys->psz_uri = strdup( temp );
340 if( p_sys->psz_uri == NULL )
342 if( p_sys->psz_server && p_sys->psz_location )
346 asprintf( &temp, "rtsp://" "%s:%i%s",
347 p_sys->psz_server, p_sys->i_port > 0 ? p_sys->i_port : 554, p_sys->psz_location );
349 p_sys->psz_uri = strdup( temp );
354 if( p_sys->b_concert )
356 /* It's definetly a simulcasted scheduled stream */
357 /* We don't care if it's live or not */
360 if( p_sys->psz_uri == NULL )
362 msg_Err( p_demux, "no URI was found" );
366 asprintf( &temp, "%s%%3FMeDiAbAsEshowingId=%d%%26MeDiAbAsEconcert%%3FMeDiAbAsE",
367 p_sys->psz_uri, p_sys->i_sid );
369 free( p_sys->psz_uri );
370 p_sys->psz_uri = strdup( temp );
374 p_child = input_ItemNewWithType( (vlc_object_t *)p_playlist, p_sys->psz_uri,
375 p_sys->psz_name ? p_sys->psz_name : p_sys->psz_uri,
376 0, NULL, p_sys->i_duration, ITEM_TYPE_NET );
380 msg_Err( p_demux, "A valid playlistitem could not be created" );
384 input_ItemCopyOptions( p_current->p_input, p_child );
385 if( p_sys->i_packet_size && p_sys->psz_mcast_ip )
388 p_sys->i_packet_size += 1000;
389 asprintf( &psz_option, "mtu=%i", p_sys->i_packet_size );
390 input_ItemAddOption( p_child, psz_option );
393 if( !p_sys->psz_mcast_ip )
396 asprintf( &psz_option, "rtsp-caching=5000" );
397 input_ItemAddOption( p_child, psz_option );
400 if( !p_sys->psz_mcast_ip && p_sys->b_rtsp_kasenna )
403 asprintf( &psz_option, "rtsp-kasenna" );
404 input_ItemAddOption( p_child, psz_option );
408 playlist_AddWhereverNeeded( p_playlist, p_child, p_current,
409 p_item_in_category, (i_parent_id > 0 )? VLC_TRUE : VLC_FALSE,
411 HANDLE_PLAY_AND_RELEASE
415 static int Control( demux_t *p_demux, int i_query, va_list args )