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
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 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_access.h>
33 #include <vlc_interface.h>
35 #include <vlc_network.h>
39 /*****************************************************************************
41 *****************************************************************************/
42 static int Open ( vlc_object_t * );
43 static void Close( vlc_object_t * );
45 #define CACHING_TEXT N_("Caching value (ms)")
46 #define CACHING_LONGTEXT N_( \
47 "Caching value for RTSP streams. This " \
48 "value should be set in milliseconds." )
51 set_description( _("Real RTSP") );
52 set_shortname( _("Real RTSP") );
53 set_category( CAT_INPUT );
54 set_subcategory( SUBCAT_INPUT_ACCESS );
55 add_integer( "realrtsp-caching", 3000, NULL,
56 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
57 set_capability( "access2", 10 );
58 set_callbacks( Open, Close );
59 add_shortcut( "realrtsp" );
60 add_shortcut( "rtsp" );
61 add_shortcut( "pnm" );
65 /*****************************************************************************
67 *****************************************************************************/
68 static block_t *BlockRead( access_t * );
69 static int Seek( access_t *, int64_t );
70 static int Control( access_t *, int, va_list );
74 vlc_bool_t b_seekable;
75 vlc_bool_t b_pace_control;
77 rtsp_client_t *p_rtsp;
84 /*****************************************************************************
86 *****************************************************************************/
87 static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
89 access_t *p_access = (access_t *)p_userdata;
90 access_sys_t *p_sys = p_access->p_sys;
93 p_sys->fd = net_ConnectTCP( p_access, psz_server, i_port );
96 msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
97 intf_UserFatal( p_access, VLC_FALSE, _("Connection failed"),
98 _("VLC could not connect to \"%s:%d\"."), psz_server, i_port );
105 static int RtspDisconnect( void *p_userdata )
107 access_t *p_access = (access_t *)p_userdata;
108 access_sys_t *p_sys = p_access->p_sys;
110 net_Close( p_sys->fd );
114 static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
116 access_t *p_access = (access_t *)p_userdata;
117 access_sys_t *p_sys = p_access->p_sys;
119 return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, VLC_TRUE );
122 static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
124 access_t *p_access = (access_t *)p_userdata;
125 access_sys_t *p_sys = p_access->p_sys;
127 char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, 0 );
129 //fprintf(stderr, "ReadLine: %s\n", psz);
131 if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
138 static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
140 access_t *p_access = (access_t *)p_userdata;
141 access_sys_t *p_sys = p_access->p_sys;
143 //fprintf(stderr, "Write: %s", p_buffer);
145 net_Printf( VLC_OBJECT(p_access), p_sys->fd, 0, "%s", p_buffer );
150 /*****************************************************************************
151 * Open: open the rtsp connection
152 *****************************************************************************/
153 static int Open( vlc_object_t *p_this )
155 access_t *p_access = (access_t *)p_this;
157 char *psz_server = 0;
160 if( !p_access->psz_access || (
161 strncmp( p_access->psz_access, "rtsp", 4 ) &&
162 strncmp( p_access->psz_access, "pnm", 3 ) &&
163 strncmp( p_access->psz_access, "realrtsp", 8 ) ))
168 p_access->pf_read = NULL;
169 p_access->pf_block = BlockRead;
170 p_access->pf_seek = Seek;
171 p_access->pf_control = Control;
172 p_access->info.i_update = 0;
173 p_access->info.i_size = 0;
174 p_access->info.i_pos = 0;
175 p_access->info.b_eof = VLC_FALSE;
176 p_access->info.i_title = 0;
177 p_access->info.i_seekpoint = 0;
178 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
179 p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
182 p_sys->p_rtsp->p_userdata = p_access;
183 p_sys->p_rtsp->pf_connect = RtspConnect;
184 p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
185 p_sys->p_rtsp->pf_read = RtspRead;
186 p_sys->p_rtsp->pf_read_line = RtspReadLine;
187 p_sys->p_rtsp->pf_write = RtspWrite;
189 i_result = rtsp_connect( p_sys->p_rtsp, p_access->psz_path, 0 );
192 msg_Dbg( p_access, "could not connect to: %s", p_access->psz_path );
193 free( p_sys->p_rtsp );
198 msg_Dbg( p_access, "rtsp connected" );
200 /* looking for server type */
201 if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
202 psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
205 if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
206 psz_server = strdup("Real");
208 psz_server = strdup("unknown");
211 if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
213 uint32_t bandwidth = 10485800;
216 msg_Dbg( p_access, "found a real/helix rtsp server" );
218 if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
220 /* Check if we got a redirect */
221 if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
223 msg_Dbg( p_access, "redirect: %s",
224 rtsp_search_answers(p_sys->p_rtsp, "Location") );
225 msg_Warn( p_access, "redirect not supported" );
230 msg_Err( p_access, "rtsp session can not be established" );
231 intf_UserFatal( p_access, VLC_FALSE, _("Session failed"),
232 _("The requested RTSP session could not be established.") );
236 p_sys->p_header = block_New( p_access, 4096 );
237 p_sys->p_header->i_buffer =
238 rmff_dump_header( h, (char *)p_sys->p_header->p_buffer, 1024 );
239 rmff_free_header( h );
243 msg_Warn( p_access, "only real/helix rtsp servers supported for now" );
247 /* Update default_pts to a suitable value for file access */
248 var_Create( p_access, "realrtsp-caching",
249 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
260 /*****************************************************************************
261 * Close: close the target
262 *****************************************************************************/
263 static void Close( vlc_object_t * p_this )
265 access_t *p_access = (access_t*)p_this;
266 access_sys_t *p_sys = p_access->p_sys;
268 if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
269 free( p_sys->p_rtsp );
273 /*****************************************************************************
274 * Read: standard read on a file descriptor.
275 *****************************************************************************/
276 static block_t *BlockRead( access_t *p_access )
278 access_sys_t *p_sys = p_access->p_sys;
280 rmff_pheader_t pheader;
283 if( p_sys->p_header )
285 p_block = p_sys->p_header;
290 i_size = real_get_rdt_chunk_header( p_access->p_sys->p_rtsp, &pheader );
291 if( i_size <= 0 ) return 0;
293 p_block = block_New( p_access, i_size );
294 p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp, &pheader,
295 &p_block->p_buffer );
300 /*****************************************************************************
301 * Seek: seek to a specific location in a file
302 *****************************************************************************/
303 static int Seek( access_t *p_access, int64_t i_pos )
308 /*****************************************************************************
310 *****************************************************************************/
311 static int Control( access_t *p_access, int i_query, va_list args )
320 case ACCESS_CAN_SEEK:
321 case ACCESS_CAN_FASTSEEK:
322 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
323 *pb_bool = VLC_FALSE;//p_sys->b_seekable;
326 case ACCESS_CAN_PAUSE:
327 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
328 *pb_bool = VLC_FALSE;
331 case ACCESS_CAN_CONTROL_PACE:
332 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
333 *pb_bool = VLC_TRUE;//p_sys->b_pace_control;
338 pi_int = (int*)va_arg( args, int * );
342 case ACCESS_GET_PTS_DELAY:
343 pi_64 = (int64_t*)va_arg( args, int64_t * );
344 *pi_64 = var_GetInteger( p_access, "realrtsp-caching" ) * 1000;
348 case ACCESS_SET_PAUSE_STATE:
352 case ACCESS_GET_TITLE_INFO:
353 case ACCESS_SET_TITLE:
354 case ACCESS_SET_SEEKPOINT:
355 case ACCESS_SET_PRIVATE_ID_STATE:
356 case ACCESS_GET_META:
357 case ACCESS_GET_CONTENT_TYPE:
361 msg_Warn( p_access, "unimplemented query in control" );