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 *****************************************************************************/
28 #include <vlc_access.h>
29 #include <vlc_interface.h>
31 #include <vlc_network.h>
35 /*****************************************************************************
37 *****************************************************************************/
38 static int Open ( vlc_object_t * );
39 static void Close( vlc_object_t * );
41 #define CACHING_TEXT N_("Caching value (ms)")
42 #define CACHING_LONGTEXT N_( \
43 "Caching value for RTSP streams. This " \
44 "value should be set in milliseconds." )
47 set_description( _("Real RTSP") );
48 set_shortname( _("Real RTSP") );
49 set_category( CAT_INPUT );
50 set_subcategory( SUBCAT_INPUT_ACCESS );
51 add_integer( "realrtsp-caching", 3000, NULL,
52 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
53 set_capability( "access2", 10 );
54 set_callbacks( Open, Close );
55 add_shortcut( "realrtsp" );
56 add_shortcut( "rtsp" );
57 add_shortcut( "pnm" );
61 /*****************************************************************************
63 *****************************************************************************/
64 static block_t *BlockRead( access_t * );
65 static int Seek( access_t *, int64_t );
66 static int Control( access_t *, int, va_list );
70 vlc_bool_t b_seekable;
71 vlc_bool_t b_pace_control;
73 rtsp_client_t *p_rtsp;
80 /*****************************************************************************
82 *****************************************************************************/
83 static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
85 access_t *p_access = (access_t *)p_userdata;
86 access_sys_t *p_sys = p_access->p_sys;
89 p_sys->fd = net_ConnectTCP( p_access, psz_server, i_port );
92 msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
93 intf_UserFatal( p_access, VLC_FALSE, _("Connection failed"),
94 _("VLC could not connect to \"%s:%d\"."), psz_server, i_port );
101 static int RtspDisconnect( void *p_userdata )
103 access_t *p_access = (access_t *)p_userdata;
104 access_sys_t *p_sys = p_access->p_sys;
106 net_Close( p_sys->fd );
110 static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
112 access_t *p_access = (access_t *)p_userdata;
113 access_sys_t *p_sys = p_access->p_sys;
115 return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, VLC_TRUE );
118 static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
120 access_t *p_access = (access_t *)p_userdata;
121 access_sys_t *p_sys = p_access->p_sys;
123 char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, 0 );
125 //fprintf(stderr, "ReadLine: %s\n", psz);
127 if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
130 if( psz ) free( psz );
134 static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
136 access_t *p_access = (access_t *)p_userdata;
137 access_sys_t *p_sys = p_access->p_sys;
139 //fprintf(stderr, "Write: %s", p_buffer);
141 net_Printf( VLC_OBJECT(p_access), p_sys->fd, 0, "%s", p_buffer );
146 /*****************************************************************************
147 * Open: open the rtsp connection
148 *****************************************************************************/
149 static int Open( vlc_object_t *p_this )
151 access_t *p_access = (access_t *)p_this;
153 char *psz_server = 0;
156 if( !p_access->psz_access || (
157 strncmp( p_access->psz_access, "rtsp", 4 ) &&
158 strncmp( p_access->psz_access, "pnm", 3 ) &&
159 strncmp( p_access->psz_access, "realrtsp", 8 ) ))
164 p_access->pf_read = NULL;
165 p_access->pf_block = BlockRead;
166 p_access->pf_seek = Seek;
167 p_access->pf_control = Control;
168 p_access->info.i_update = 0;
169 p_access->info.i_size = 0;
170 p_access->info.i_pos = 0;
171 p_access->info.b_eof = VLC_FALSE;
172 p_access->info.i_title = 0;
173 p_access->info.i_seekpoint = 0;
174 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
175 p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
178 p_sys->p_rtsp->p_userdata = p_access;
179 p_sys->p_rtsp->pf_connect = RtspConnect;
180 p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
181 p_sys->p_rtsp->pf_read = RtspRead;
182 p_sys->p_rtsp->pf_read_line = RtspReadLine;
183 p_sys->p_rtsp->pf_write = RtspWrite;
185 i_result = rtsp_connect( p_sys->p_rtsp, p_access->psz_path, 0 );
188 msg_Dbg( p_access, "could not connect to: %s", p_access->psz_path );
189 free( p_sys->p_rtsp );
194 msg_Dbg( p_access, "rtsp connected" );
196 /* looking for server type */
197 if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
198 psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
201 if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
202 psz_server = strdup("Real");
204 psz_server = strdup("unknown");
207 if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
209 uint32_t bandwidth = 10485800;
212 msg_Dbg( p_access, "found a real/helix rtsp server" );
214 if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
216 /* Check if we got a redirect */
217 if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
219 msg_Dbg( p_access, "redirect: %s",
220 rtsp_search_answers(p_sys->p_rtsp, "Location") );
221 msg_Warn( p_access, "redirect not supported" );
226 msg_Err( p_access, "rtsp session can not be established" );
227 intf_UserFatal( p_access, VLC_FALSE, _("Session failed"),
228 _("The requested RTSP session could not be established.") );
232 p_sys->p_header = block_New( p_access, 4096 );
233 p_sys->p_header->i_buffer =
234 rmff_dump_header( h, (char *)p_sys->p_header->p_buffer, 1024 );
235 rmff_free_header( h );
239 msg_Warn( p_access, "only real/helix rtsp servers supported for now" );
243 /* Update default_pts to a suitable value for file access */
244 var_Create( p_access, "realrtsp-caching",
245 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
247 if( psz_server ) free( psz_server );
251 if( psz_server ) free( psz_server );
256 /*****************************************************************************
257 * Close: close the target
258 *****************************************************************************/
259 static void Close( vlc_object_t * p_this )
261 access_t *p_access = (access_t*)p_this;
262 access_sys_t *p_sys = p_access->p_sys;
264 if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
265 if( p_sys->p_rtsp ) free( p_sys->p_rtsp );
269 /*****************************************************************************
270 * Read: standard read on a file descriptor.
271 *****************************************************************************/
272 static block_t *BlockRead( access_t *p_access )
274 access_sys_t *p_sys = p_access->p_sys;
276 rmff_pheader_t pheader;
279 if( p_sys->p_header )
281 p_block = p_sys->p_header;
286 i_size = real_get_rdt_chunk_header( p_access->p_sys->p_rtsp, &pheader );
287 if( i_size <= 0 ) return 0;
289 p_block = block_New( p_access, i_size );
290 p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp, &pheader,
291 &p_block->p_buffer );
296 /*****************************************************************************
297 * Seek: seek to a specific location in a file
298 *****************************************************************************/
299 static int Seek( access_t *p_access, int64_t i_pos )
304 /*****************************************************************************
306 *****************************************************************************/
307 static int Control( access_t *p_access, int i_query, va_list args )
316 case ACCESS_CAN_SEEK:
317 case ACCESS_CAN_FASTSEEK:
318 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
319 *pb_bool = VLC_FALSE;//p_sys->b_seekable;
322 case ACCESS_CAN_PAUSE:
323 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
324 *pb_bool = VLC_FALSE;
327 case ACCESS_CAN_CONTROL_PACE:
328 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
329 *pb_bool = VLC_TRUE;//p_sys->b_pace_control;
334 pi_int = (int*)va_arg( args, int * );
338 case ACCESS_GET_PTS_DELAY:
339 pi_64 = (int64_t*)va_arg( args, int64_t * );
340 *pi_64 = var_GetInteger( p_access, "realrtsp-caching" ) * 1000;
344 case ACCESS_SET_PAUSE_STATE:
348 case ACCESS_GET_TITLE_INFO:
349 case ACCESS_SET_TITLE:
350 case ACCESS_SET_SEEKPOINT:
351 case ACCESS_SET_PRIVATE_ID_STATE:
352 case ACCESS_GET_META:
356 msg_Warn( p_access, "unimplemented query in control" );