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" )
62 add_shortcut( "rtsp" )
67 /*****************************************************************************
69 *****************************************************************************/
70 static block_t *BlockRead( access_t * );
71 static int Seek( access_t *, uint64_t );
72 static int Control( access_t *, int, va_list );
76 rtsp_client_t *p_rtsp;
83 /*****************************************************************************
85 *****************************************************************************/
86 static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
88 access_t *p_access = (access_t *)p_userdata;
89 access_sys_t *p_sys = p_access->p_sys;
92 p_sys->fd = net_ConnectTCP( p_access, psz_server, i_port );
95 msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
96 dialog_Fatal( p_access, _("Connection failed"),
97 _("VLC could not connect to \"%s:%d\"."), psz_server, i_port );
104 static int RtspDisconnect( void *p_userdata )
106 access_t *p_access = (access_t *)p_userdata;
107 access_sys_t *p_sys = p_access->p_sys;
109 net_Close( p_sys->fd );
113 static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
115 access_t *p_access = (access_t *)p_userdata;
116 access_sys_t *p_sys = p_access->p_sys;
118 return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, true );
121 static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
123 access_t *p_access = (access_t *)p_userdata;
124 access_sys_t *p_sys = p_access->p_sys;
126 char *psz = net_Gets( p_access, p_sys->fd, 0 );
128 //fprintf(stderr, "ReadLine: %s\n", psz);
130 if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
137 static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
139 VLC_UNUSED(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( 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 = NULL;
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 = 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 ) );
181 p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
188 p_sys->p_header = NULL;
189 p_sys->p_rtsp->p_userdata = p_access;
190 p_sys->p_rtsp->pf_connect = RtspConnect;
191 p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
192 p_sys->p_rtsp->pf_read = RtspRead;
193 p_sys->p_rtsp->pf_read_line = RtspReadLine;
194 p_sys->p_rtsp->pf_write = RtspWrite;
196 i_result = rtsp_connect( p_sys->p_rtsp, p_access->psz_path, 0 );
199 msg_Dbg( p_access, "could not connect to: %s", p_access->psz_path );
200 free( p_sys->p_rtsp );
201 p_sys->p_rtsp = NULL;
205 msg_Dbg( p_access, "rtsp connected" );
207 /* looking for server type */
208 if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
209 psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
212 if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
213 psz_server = strdup("Real");
215 psz_server = strdup("unknown");
218 if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
220 uint32_t bandwidth = 10485800;
223 msg_Dbg( p_access, "found a real/helix rtsp server" );
225 if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
227 /* Check if we got a redirect */
228 if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
230 msg_Dbg( p_access, "redirect: %s",
231 rtsp_search_answers(p_sys->p_rtsp, "Location") );
232 msg_Warn( p_access, "redirect not supported" );
237 msg_Err( p_access, "rtsp session can not be established" );
238 dialog_Fatal( p_access, _("Session failed"), "%s",
239 _("The requested RTSP session could not be established.") );
243 p_sys->p_header = block_New( p_access, 4096 );
244 p_sys->p_header->i_buffer =
245 rmff_dump_header( h, (char *)p_sys->p_header->p_buffer, 1024 );
246 rmff_free_header( h );
250 msg_Warn( p_access, "only real/helix rtsp servers supported for now" );
254 /* Update default_pts to a suitable value for file access */
255 var_Create( p_access, "realrtsp-caching",
256 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
267 /*****************************************************************************
268 * Close: close the target
269 *****************************************************************************/
270 static void Close( vlc_object_t * p_this )
272 access_t *p_access = (access_t*)p_this;
273 access_sys_t *p_sys = p_access->p_sys;
275 if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
276 free( p_sys->p_rtsp );
280 /*****************************************************************************
281 * Read: standard read on a file descriptor.
282 *****************************************************************************/
283 static block_t *BlockRead( access_t *p_access )
285 access_sys_t *p_sys = p_access->p_sys;
287 rmff_pheader_t pheader;
290 if( p_sys->p_header )
292 p_block = p_sys->p_header;
293 p_sys->p_header = NULL;
297 i_size = real_get_rdt_chunk_header( p_access->p_sys->p_rtsp, &pheader );
298 if( i_size <= 0 ) return NULL;
300 p_block = block_New( p_access, i_size );
301 p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp, &pheader,
302 &p_block->p_buffer );
307 /*****************************************************************************
308 * Seek: seek to a specific location in a file
309 *****************************************************************************/
310 static int Seek( access_t *p_access, uint64_t i_pos )
312 VLC_UNUSED(p_access);
317 /*****************************************************************************
319 *****************************************************************************/
320 static int Control( access_t *p_access, int i_query, va_list args )
325 case ACCESS_CAN_SEEK:
326 case ACCESS_CAN_FASTSEEK:
327 case ACCESS_CAN_PAUSE:
328 *va_arg( args, bool* ) = false;
331 case ACCESS_CAN_CONTROL_PACE:
332 *va_arg( args, bool* ) = true;
335 case ACCESS_GET_PTS_DELAY:
336 *va_arg( args, int64_t * ) =
337 (int64_t)var_GetInteger(p_access,"realrtsp-caching")*1000;
341 case ACCESS_SET_PAUSE_STATE:
345 case ACCESS_GET_TITLE_INFO:
346 case ACCESS_SET_TITLE:
347 case ACCESS_SET_SEEKPOINT:
348 case ACCESS_SET_PRIVATE_ID_STATE:
349 case ACCESS_GET_META:
350 case ACCESS_GET_CONTENT_TYPE:
354 msg_Warn( p_access, "unimplemented query in control" );