1 /*****************************************************************************
2 * access.c: Real rtsp input
3 *****************************************************************************
4 * Copyright (C) 2005 VideoLAN
7 * Authors: Gildas Bazin <gbazin@videolan.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 along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
33 #include <vlc_access.h>
34 #include <vlc_dialog.h>
36 #include <vlc_network.h>
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close( vlc_object_t * );
46 #define CACHING_TEXT N_("Caching value (ms)")
47 #define CACHING_LONGTEXT N_( \
48 "Caching value for RTSP streams. This " \
49 "value should be set in milliseconds." )
52 set_description( N_("Real RTSP") )
53 set_shortname( N_("Real RTSP") )
54 set_category( CAT_INPUT )
55 set_subcategory( SUBCAT_INPUT_ACCESS )
56 add_integer( "realrtsp-caching", 3000, NULL,
57 CACHING_TEXT, CACHING_LONGTEXT, true )
59 set_capability( "access", 10 )
60 set_callbacks( Open, Close )
61 add_shortcut( "realrtsp", "rtsp", "pnm" )
65 /*****************************************************************************
67 *****************************************************************************/
68 static block_t *BlockRead( access_t * );
69 static int Seek( access_t *, uint64_t );
70 static int Control( access_t *, int, va_list );
74 rtsp_client_t *p_rtsp;
81 /*****************************************************************************
83 *****************************************************************************/
84 static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
86 access_t *p_access = (access_t *)p_userdata;
87 access_sys_t *p_sys = p_access->p_sys;
90 p_sys->fd = net_ConnectTCP( p_access, psz_server, i_port );
93 msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
94 dialog_Fatal( p_access, _("Connection failed"),
95 _("VLC could not connect to \"%s:%d\"."), psz_server, i_port );
102 static int RtspDisconnect( void *p_userdata )
104 access_t *p_access = (access_t *)p_userdata;
105 access_sys_t *p_sys = p_access->p_sys;
107 net_Close( p_sys->fd );
111 static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
113 access_t *p_access = (access_t *)p_userdata;
114 access_sys_t *p_sys = p_access->p_sys;
116 return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, true );
119 static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
121 access_t *p_access = (access_t *)p_userdata;
122 access_sys_t *p_sys = p_access->p_sys;
124 char *psz = net_Gets( p_access, p_sys->fd, 0 );
126 //fprintf(stderr, "ReadLine: %s\n", psz);
128 if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
135 static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
137 VLC_UNUSED(i_buffer);
138 access_t *p_access = (access_t *)p_userdata;
139 access_sys_t *p_sys = p_access->p_sys;
141 //fprintf(stderr, "Write: %s", p_buffer);
143 net_Printf( p_access, p_sys->fd, 0, "%s", p_buffer );
148 /*****************************************************************************
149 * Open: open the rtsp connection
150 *****************************************************************************/
151 static int Open( vlc_object_t *p_this )
153 access_t *p_access = (access_t *)p_this;
155 char* psz_server = NULL;
158 if( !p_access->psz_access || (
159 strncmp( p_access->psz_access, "rtsp", 4 ) &&
160 strncmp( p_access->psz_access, "pnm", 3 ) &&
161 strncmp( p_access->psz_access, "realrtsp", 8 ) ))
166 p_access->pf_read = NULL;
167 p_access->pf_block = BlockRead;
168 p_access->pf_seek = Seek;
169 p_access->pf_control = Control;
170 p_access->info.i_update = 0;
171 p_access->info.i_size = 0;
172 p_access->info.i_pos = 0;
173 p_access->info.b_eof = false;
174 p_access->info.i_title = 0;
175 p_access->info.i_seekpoint = 0;
176 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
179 p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
186 p_sys->p_header = NULL;
187 p_sys->p_rtsp->p_userdata = p_access;
188 p_sys->p_rtsp->pf_connect = RtspConnect;
189 p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
190 p_sys->p_rtsp->pf_read = RtspRead;
191 p_sys->p_rtsp->pf_read_line = RtspReadLine;
192 p_sys->p_rtsp->pf_write = RtspWrite;
194 i_result = rtsp_connect( p_sys->p_rtsp, p_access->psz_location, 0 );
197 msg_Dbg( p_access, "could not connect to: %s", p_access->psz_location );
198 free( p_sys->p_rtsp );
199 p_sys->p_rtsp = NULL;
203 msg_Dbg( p_access, "rtsp connected" );
205 /* looking for server type */
206 if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
207 psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
210 if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
211 psz_server = strdup("Real");
213 psz_server = strdup("unknown");
216 if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
218 uint32_t bandwidth = 10485800;
221 msg_Dbg( p_access, "found a real/helix rtsp server" );
223 if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
225 /* Check if we got a redirect */
226 if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
228 msg_Dbg( p_access, "redirect: %s",
229 rtsp_search_answers(p_sys->p_rtsp, "Location") );
230 msg_Warn( p_access, "redirect not supported" );
235 msg_Err( p_access, "rtsp session can not be established" );
236 dialog_Fatal( p_access, _("Session failed"), "%s",
237 _("The requested RTSP session could not be established.") );
241 p_sys->p_header = block_New( p_access, 4096 );
242 p_sys->p_header->i_buffer =
243 rmff_dump_header( h, (char *)p_sys->p_header->p_buffer, 1024 );
244 rmff_free_header( h );
248 msg_Warn( p_access, "only real/helix rtsp servers supported for now" );
252 /* Update default_pts to a suitable value for file access */
253 var_Create( p_access, "realrtsp-caching",
254 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
265 /*****************************************************************************
266 * Close: close the target
267 *****************************************************************************/
268 static void Close( vlc_object_t * p_this )
270 access_t *p_access = (access_t*)p_this;
271 access_sys_t *p_sys = p_access->p_sys;
273 if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
274 free( p_sys->p_rtsp );
278 /*****************************************************************************
279 * Read: standard read on a file descriptor.
280 *****************************************************************************/
281 static block_t *BlockRead( access_t *p_access )
283 access_sys_t *p_sys = p_access->p_sys;
285 rmff_pheader_t pheader;
288 if( p_sys->p_header )
290 p_block = p_sys->p_header;
291 p_sys->p_header = NULL;
295 i_size = real_get_rdt_chunk_header( p_access->p_sys->p_rtsp, &pheader );
296 if( i_size <= 0 ) return NULL;
298 p_block = block_New( p_access, i_size );
299 p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp, &pheader,
300 &p_block->p_buffer );
305 /*****************************************************************************
306 * Seek: seek to a specific location in a file
307 *****************************************************************************/
308 static int Seek( access_t *p_access, uint64_t i_pos )
310 VLC_UNUSED(p_access);
315 /*****************************************************************************
317 *****************************************************************************/
318 static int Control( access_t *p_access, int i_query, va_list args )
323 case ACCESS_CAN_SEEK:
324 case ACCESS_CAN_FASTSEEK:
325 case ACCESS_CAN_PAUSE:
326 *va_arg( args, bool* ) = false;
329 case ACCESS_CAN_CONTROL_PACE:
330 *va_arg( args, bool* ) = true;
333 case ACCESS_GET_PTS_DELAY:
334 *va_arg( args, int64_t * ) =
335 var_GetInteger(p_access,"realrtsp-caching")*1000;
339 case ACCESS_SET_PAUSE_STATE:
343 case ACCESS_GET_TITLE_INFO:
344 case ACCESS_SET_TITLE:
345 case ACCESS_SET_SEEKPOINT:
346 case ACCESS_SET_PRIVATE_ID_STATE:
347 case ACCESS_GET_META:
348 case ACCESS_GET_CONTENT_TYPE:
352 msg_Warn( p_access, "unimplemented query in control" );