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 #define VLC_MODULE_LICENSE VLC_LICENSE_GPL_2_PLUS
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_access.h>
35 #include <vlc_dialog.h>
37 #include <vlc_network.h>
41 /*****************************************************************************
43 *****************************************************************************/
44 static int Open ( vlc_object_t * );
45 static void Close( vlc_object_t * );
48 set_description( N_("Real RTSP") )
49 set_shortname( N_("Real RTSP") )
50 set_category( CAT_INPUT )
51 set_subcategory( SUBCAT_INPUT_ACCESS )
52 set_capability( "access", 10 )
53 set_callbacks( Open, Close )
54 add_shortcut( "realrtsp", "rtsp", "pnm" )
58 /*****************************************************************************
60 *****************************************************************************/
61 static block_t *BlockRead( access_t * );
62 static int Seek( access_t *, uint64_t );
63 static int Control( access_t *, int, va_list );
67 rtsp_client_t *p_rtsp;
74 /*****************************************************************************
76 *****************************************************************************/
77 static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
79 access_t *p_access = (access_t *)p_userdata;
80 access_sys_t *p_sys = p_access->p_sys;
83 p_sys->fd = net_ConnectTCP( p_access, psz_server, i_port );
86 msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
87 dialog_Fatal( p_access, _("Connection failed"),
88 _("VLC could not connect to \"%s:%d\"."), psz_server, i_port );
95 static int RtspDisconnect( void *p_userdata )
97 access_t *p_access = (access_t *)p_userdata;
98 access_sys_t *p_sys = p_access->p_sys;
100 net_Close( p_sys->fd );
104 static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
106 access_t *p_access = (access_t *)p_userdata;
107 access_sys_t *p_sys = p_access->p_sys;
109 return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, true );
112 static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
114 access_t *p_access = (access_t *)p_userdata;
115 access_sys_t *p_sys = p_access->p_sys;
117 char *psz = net_Gets( p_access, p_sys->fd, 0 );
119 //fprintf(stderr, "ReadLine: %s\n", psz);
121 if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
128 static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
130 VLC_UNUSED(i_buffer);
131 access_t *p_access = (access_t *)p_userdata;
132 access_sys_t *p_sys = p_access->p_sys;
134 //fprintf(stderr, "Write: %s", p_buffer);
136 net_Printf( p_access, p_sys->fd, 0, "%s", p_buffer );
141 /*****************************************************************************
142 * Open: open the rtsp connection
143 *****************************************************************************/
144 static int Open( vlc_object_t *p_this )
146 access_t *p_access = (access_t *)p_this;
148 char* psz_server = NULL;
151 if( !p_access->psz_access || (
152 strncmp( p_access->psz_access, "rtsp", 4 ) &&
153 strncmp( p_access->psz_access, "pnm", 3 ) &&
154 strncmp( p_access->psz_access, "realrtsp", 8 ) ))
159 /* Discard legacy username/password syntax - not supported */
160 const char *psz_location = strchr( p_access->psz_location, '@' );
161 if( psz_location != NULL )
164 psz_location = p_access->psz_location;
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_pos = 0;
171 p_access->info.b_eof = false;
172 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
175 p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
182 p_sys->p_header = NULL;
183 p_sys->p_rtsp->p_userdata = p_access;
184 p_sys->p_rtsp->pf_connect = RtspConnect;
185 p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
186 p_sys->p_rtsp->pf_read = RtspRead;
187 p_sys->p_rtsp->pf_read_line = RtspReadLine;
188 p_sys->p_rtsp->pf_write = RtspWrite;
190 i_result = rtsp_connect( p_sys->p_rtsp, psz_location, 0 );
193 msg_Dbg( p_access, "could not connect to: %s", psz_location );
194 free( p_sys->p_rtsp );
195 p_sys->p_rtsp = NULL;
199 msg_Dbg( p_access, "rtsp connected" );
201 /* looking for server type */
202 if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
203 psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
206 if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
207 psz_server = strdup("Real");
209 psz_server = strdup("unknown");
212 if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
214 uint32_t bandwidth = 10485800;
217 msg_Dbg( p_access, "found a real/helix rtsp server" );
219 if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
221 /* Check if we got a redirect */
222 if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
224 msg_Dbg( p_access, "redirect: %s",
225 rtsp_search_answers(p_sys->p_rtsp, "Location") );
226 msg_Warn( p_access, "redirect not supported" );
231 msg_Err( p_access, "rtsp session can not be established" );
232 dialog_Fatal( p_access, _("Session failed"), "%s",
233 _("The requested RTSP session could not be established.") );
237 p_sys->p_header = block_Alloc( 4096 );
238 p_sys->p_header->i_buffer =
239 rmff_dump_header( h, (char *)p_sys->p_header->p_buffer, 1024 );
240 rmff_free_header( h );
244 msg_Warn( p_access, "only real/helix rtsp servers supported for now" );
257 /*****************************************************************************
258 * Close: close the target
259 *****************************************************************************/
260 static void Close( vlc_object_t * p_this )
262 access_t *p_access = (access_t*)p_this;
263 access_sys_t *p_sys = p_access->p_sys;
265 if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
266 free( p_sys->p_rtsp );
270 /*****************************************************************************
271 * Read: standard read on a file descriptor.
272 *****************************************************************************/
273 static block_t *BlockRead( access_t *p_access )
275 access_sys_t *p_sys = p_access->p_sys;
277 rmff_pheader_t pheader;
280 if( p_sys->p_header )
282 p_block = p_sys->p_header;
283 p_sys->p_header = NULL;
287 i_size = real_get_rdt_chunk_header( p_access->p_sys->p_rtsp, &pheader );
288 if( i_size <= 0 ) return NULL;
290 p_block = block_Alloc( i_size );
291 p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp, &pheader,
292 &p_block->p_buffer );
297 /*****************************************************************************
298 * Seek: seek to a specific location in a file
299 *****************************************************************************/
300 static int Seek( access_t *p_access, uint64_t i_pos )
302 VLC_UNUSED(p_access);
307 /*****************************************************************************
309 *****************************************************************************/
310 static int Control( access_t *p_access, int i_query, va_list args )
314 case ACCESS_CAN_SEEK:
315 case ACCESS_CAN_FASTSEEK:
316 case ACCESS_CAN_PAUSE:
317 *va_arg( args, bool* ) = false;
320 case ACCESS_CAN_CONTROL_PACE:
321 *va_arg( args, bool* ) = true;
324 case ACCESS_GET_PTS_DELAY:
325 *va_arg( args, int64_t * ) = INT64_C(1000)
326 * var_InheritInteger(p_access, "network-caching");
329 case ACCESS_SET_PAUSE_STATE: