1 /*****************************************************************************
2 * access.c: DVB card input v4l2 only
3 *****************************************************************************
4 * Copyright (C) 1998-2004 VideoLAN
6 * Authors: Johan Bilien <jobi@via.ecp.fr>
7 * Jean-Paul Saman <jpsaman@wxs.nl>
8 * Christophe Massiot <massiot@via.ecp.fr>
9 * Laurent Aimar <fenrir@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
24 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
31 #include <vlc/input.h>
38 #include <sys/types.h>
44 /*****************************************************************************
46 *****************************************************************************/
47 static int Open( vlc_object_t *p_this );
48 static void Close( vlc_object_t *p_this );
50 #define CACHING_TEXT N_("Caching value in ms")
51 #define CACHING_LONGTEXT N_( \
52 "Allows you to modify the default caching value for dvb streams. This " \
53 "value should be set in millisecond units." )
55 #define PROGRAM_TEXT N_("Program to decode")
56 #define PROGRAM_LONGTEXT N_("This is a workaround for a bug in the input")
58 #define ADAPTER_TEXT N_("Adapter card to tune")
59 #define ADAPTER_LONGTEXT N_("Adapter cards have a device file in directory named /dev/dvb/adapter[n] with n>=0.")
61 #define DEVICE_TEXT N_("Device number to use on adapter")
62 #define DEVICE_LONGTEXT ""
64 #define FREQ_TEXT N_("Transponder/multiplex frequency")
65 #define FREQ_LONGTEXT N_("In kHz for DVB-S or Hz for DVB-C/T")
67 #define INVERSION_TEXT N_("Inversion mode")
68 #define INVERSION_LONGTEXT N_("Inversion mode [0=off, 1=on, 2=auto]")
70 #define PROBE_TEXT N_("Probe DVB card for capabilities")
71 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their capabilities.")
73 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
74 #define LNB_LOF1_LONGTEXT ""
76 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
77 #define LNB_LOF2_LONGTEXT ""
79 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
80 #define LNB_SLOF_LONGTEXT ""
83 #define BUDGET_TEXT N_("Budget mode")
84 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder with a budget card.")
86 #define SATNO_TEXT N_("Satellite number in the Diseqc system")
87 #define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=normal diseqc, -1=A, -2=B simple diseqc]")
89 #define VOLTAGE_TEXT N_("LNB voltage")
90 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal]")
92 #define TONE_TEXT N_("22 kHz tone")
93 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto]")
95 #define FEC_TEXT N_("Transponder FEC")
96 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto]")
98 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
99 #define SRATE_LONGTEXT ""
102 #define MODULATION_TEXT N_("Modulation type")
103 #define MODULATION_LONGTEXT N_("Modulation type for front-end device.")
106 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
107 #define CODE_RATE_HP_LONGTEXT ""
109 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
110 #define CODE_RATE_LP_LONGTEXT ""
112 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
113 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
115 #define GUARD_TEXT N_("Terrestrial guard interval")
116 #define GUARD_LONGTEXT ""
118 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
119 #define TRANSMISSION_LONGTEXT ""
121 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
122 #define HIERARCHY_LONGTEXT ""
125 set_shortname( _("DVB") );
126 set_description( N_("DVB input with v4l2 support") );
128 add_integer( "dvb-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
129 CACHING_LONGTEXT, VLC_TRUE );
130 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
132 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
134 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
136 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT, INVERSION_LONGTEXT,
138 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
139 add_integer( "dvb-lnb-lof1", 9750000, NULL, LNB_LOF1_TEXT,
140 LNB_LOF1_LONGTEXT, VLC_TRUE );
141 add_integer( "dvb-lnb-lof2", 10600000, NULL, LNB_LOF2_TEXT,
142 LNB_LOF2_LONGTEXT, VLC_TRUE );
143 add_integer( "dvb-lnb-slof", 11700000, NULL, LNB_SLOF_TEXT,
144 LNB_SLOF_LONGTEXT, VLC_TRUE );
145 /* DVB-S (satellite) */
146 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
148 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
150 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
152 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
154 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
155 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
157 /* DVB-T (terrestrial) */
158 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT,
159 MODULATION_LONGTEXT, VLC_TRUE );
160 /* DVB-T (terrestrial) */
161 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
162 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
163 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
164 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
165 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
167 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
168 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
169 TRANSMISSION_LONGTEXT, VLC_TRUE );
170 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
173 set_capability( "access2", 0 );
174 add_shortcut( "dvb" );
175 add_shortcut( "dvb-s" );
176 add_shortcut( "qpsk" );
177 add_shortcut( "dvb-c" );
178 add_shortcut( "cable" );
179 add_shortcut( "dvb-t" );
180 add_shortcut( "terrestrial" );
181 add_shortcut( "satellite" ); /* compatibility with the interface. */
182 set_callbacks( Open, Close );
186 /*****************************************************************************
188 *****************************************************************************/
189 static block_t *Block( access_t * );
190 static int Control( access_t *, int, va_list );
192 #define SATELLITE_READ_ONCE 3
193 #define TS_PACKET_SIZE 188
195 static void FilterUnset( access_t *, int i_max );
196 static void FilterUnsetPID( access_t *, int i_pid );
197 static void FilterSet( access_t *, int i_pid, int i_type );
199 static void VarInit( access_t * );
200 static int ParseMRL( access_t * );
203 /*****************************************************************************
204 * Open: open the frontend device
205 *****************************************************************************/
206 static int Open( vlc_object_t *p_this )
208 access_t *p_access = (access_t*)p_this;
211 /* Only if selected */
212 if( *p_access->psz_access == '\0' )
216 p_access->pf_read = NULL;
217 p_access->pf_block = Block;
218 p_access->pf_control = Control;
219 p_access->pf_seek = NULL;
220 p_access->info.i_update = 0;
221 p_access->info.i_size = 0;
222 p_access->info.i_pos = 0;
223 p_access->info.b_eof = VLC_FALSE;
224 p_access->info.i_title = 0;
225 p_access->info.i_seekpoint = 0;
227 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
228 memset( p_sys, 0, sizeof( access_sys_t ) );
230 /* Create all variables */
233 /* Parse the command line */
234 if( ParseMRL( p_access ) )
240 /* Getting frontend info */
241 if( E_(FrontendOpen)( p_access) )
247 /* Setting frontend parameters for tuning the hardware */
248 msg_Dbg( p_access, "trying to tune the frontend...");
249 if( E_(FrontendSet)( p_access ) < 0 )
251 E_(FrontendClose)( p_access );
256 /* Opening DVR device */
257 if( E_(DVROpen)( p_access ) < 0 )
259 E_(FrontendClose)( p_access );
264 p_sys->b_budget_mode = var_GetBool( p_access, "dvb-budget-mode" );
265 if( p_sys->b_budget_mode )
267 msg_Dbg( p_access, "setting filter on all PIDs" );
268 FilterSet( p_access, 0x2000, OTHER_TYPE );
272 msg_Dbg( p_access, "setting filter on PAT" );
273 FilterSet( p_access, 0x0, OTHER_TYPE );
279 /*****************************************************************************
280 * Close : Close the device
281 *****************************************************************************/
282 static void Close( vlc_object_t *p_this )
284 access_t *p_access = (access_t*)p_this;
285 access_sys_t *p_sys = p_access->p_sys;
287 FilterUnset( p_access, p_sys->b_budget_mode ? 1 : MAX_DEMUX );
289 E_(DVRClose)( p_access );
290 E_(FrontendClose)( p_access );
294 /*****************************************************************************
296 *****************************************************************************/
297 static block_t *Block( access_t *p_access )
299 access_sys_t *p_sys = p_access->p_sys;
300 struct timeval timeout;
305 /* Initialize file descriptor set */
307 FD_SET( p_sys->i_handle, &fds );
309 /* We'll wait 0.5 second if nothing happens */
311 timeout.tv_usec = 500000;
313 /* Find if some data is available */
314 while( (i_ret = select( p_sys->i_handle + 1, &fds, NULL, NULL, &timeout )) == 0 ||
315 (i_ret < 0 && errno == EINTR) )
318 FD_SET( p_sys->i_handle, &fds );
320 timeout.tv_usec = 500000;
322 if( p_access->b_die )
328 msg_Err( p_access, "select error (%s)", strerror(errno) );
332 p_block = block_New( p_access, SATELLITE_READ_ONCE * TS_PACKET_SIZE );
333 if( ( p_block->i_buffer = read( p_sys->i_handle, p_block->p_buffer, SATELLITE_READ_ONCE * TS_PACKET_SIZE ) ) <= 0 )
335 msg_Err( p_access, "read failed (%s)", strerror(errno) );
336 block_Release( p_block );
343 /*****************************************************************************
345 *****************************************************************************/
346 static int Control( access_t *p_access, int i_query, va_list args )
348 access_sys_t *p_sys = p_access->p_sys;
349 vlc_bool_t *pb_bool, b_bool;
356 case ACCESS_CAN_SEEK:
357 case ACCESS_CAN_FASTSEEK:
358 case ACCESS_CAN_PAUSE:
359 case ACCESS_CAN_CONTROL_PACE:
360 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
361 *pb_bool = VLC_FALSE;
365 pi_int = (int*)va_arg( args, int * );
366 *pi_int = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
369 case ACCESS_GET_PTS_DELAY:
370 pi_64 = (int64_t*)va_arg( args, int64_t * );
371 *pi_64 = var_GetInteger( p_access, "dvb-caching" ) * 1000;
375 case ACCESS_SET_PAUSE_STATE:
376 case ACCESS_GET_TITLE_INFO:
377 case ACCESS_SET_TITLE:
378 case ACCESS_SET_SEEKPOINT:
381 case ACCESS_SET_PRIVATE_ID_STATE:
382 i_int = (int)va_arg( args, int ); /* Private data (pid for now)*/
383 b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t ); /* b_selected */
384 if( !p_sys->b_budget_mode )
386 /* FIXME we may want to give the real type (me ?, I don't ;) */
388 FilterSet( p_access, i_int, OTHER_TYPE );
390 FilterUnsetPID( p_access, i_int );
395 msg_Warn( p_access, "unimplemented query in control" );
402 /*****************************************************************************
403 * FilterSet/FilterUnset:
404 *****************************************************************************/
405 static void FilterSet( access_t *p_access, int i_pid, int i_type )
407 access_sys_t *p_sys = p_access->p_sys;
410 /* Find first free slot */
411 for( i = 0; i < MAX_DEMUX; i++ )
413 if( !p_sys->p_demux_handles[i].i_type )
416 if( p_sys->p_demux_handles[i].i_pid == i_pid )
417 return; /* Already set */
422 msg_Err( p_access, "no free p_demux_handles !" );
426 if( E_(DMXSetFilter)( p_access, i_pid,
427 &p_sys->p_demux_handles[i].i_handle, i_type ) )
429 msg_Err( p_access, "DMXSetFilter failed" );
432 p_sys->p_demux_handles[i].i_type = i_type;
433 p_sys->p_demux_handles[i].i_pid = i_pid;
436 static void FilterUnset( access_t *p_access, int i_max )
438 access_sys_t *p_sys = p_access->p_sys;
441 for( i = 0; i < i_max; i++ )
443 if( p_sys->p_demux_handles[i].i_type )
445 E_(DMXUnsetFilter)( p_access, p_sys->p_demux_handles[i].i_handle );
446 p_sys->p_demux_handles[i].i_type = 0;
451 static void FilterUnsetPID( access_t *p_access, int i_pid )
453 access_sys_t *p_sys = p_access->p_sys;
456 for( i = 0; i < MAX_DEMUX; i++ )
458 if( p_sys->p_demux_handles[i].i_type &&
459 p_sys->p_demux_handles[i].i_pid == i_pid )
461 E_(DMXUnsetFilter)( p_access, p_sys->p_demux_handles[i].i_handle );
462 p_sys->p_demux_handles[i].i_type = 0;
467 /*****************************************************************************
469 *****************************************************************************/
470 static void VarInit( access_t *p_access )
473 var_Create( p_access, "dvb-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
476 var_Create( p_access, "dvb-adapter", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
477 var_Create( p_access, "dvb-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
478 var_Create( p_access, "dvb-frequency", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
479 var_Create( p_access, "dvb-inversion", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
480 var_Create( p_access, "dvb-probe", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
481 var_Create( p_access, "dvb-lnb-lof1", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
482 var_Create( p_access, "dvb-lnb-lof2", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
483 var_Create( p_access, "dvb-lnb-slof", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
486 var_Create( p_access, "dvb-budget-mode", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
487 var_Create( p_access, "dvb-satno", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
488 var_Create( p_access, "dvb-voltage", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
489 var_Create( p_access, "dvb-tone", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
490 var_Create( p_access, "dvb-fec", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
491 var_Create( p_access, "dvb-srate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
494 var_Create( p_access, "dvb-modulation", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
497 var_Create( p_access, "dvb-code-rate-hp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
498 var_Create( p_access, "dvb-code-rate-lp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
499 var_Create( p_access, "dvb-bandwidth", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
500 var_Create( p_access, "dvb-transmission", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
501 var_Create( p_access, "dvb-guard", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
502 var_Create( p_access, "dvb-hierarchy", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
506 static int ParseMRL( access_t *p_access )
508 char *psz_dup = strdup( p_access->psz_path );
509 char *psz_parser = psz_dup;
513 #define GET_OPTION_INT( option ) \
514 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
516 val.i_int = strtol( psz_parser+strlen(option "="), &psz_parser, 0 );\
517 var_Set( p_access, "dvb-" option, val ); \
520 #define GET_OPTION_BOOL( option ) \
521 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
523 val.b_bool = strtol( psz_parser + strlen(option "="), &psz_parser, \
525 var_Set( p_access, "dvb-" option, val ); \
528 /* Test for old syntax */
529 strtol( psz_parser, &psz_next, 10 );
530 if( psz_next != psz_parser )
532 msg_Err( p_access, "the DVB input old syntax is deprecated, use vlc "
533 "-p dvb to see an explanation of the new syntax" );
540 GET_OPTION_INT("adapter")
541 else GET_OPTION_INT("device")
542 else GET_OPTION_INT("frequency")
543 else GET_OPTION_INT("inversion")
544 else GET_OPTION_BOOL("probe")
545 else GET_OPTION_INT("lnb-lof1")
546 else GET_OPTION_INT("lnb-lof2")
547 else GET_OPTION_INT("lnb-slof")
549 else GET_OPTION_BOOL("budget-mode")
550 else GET_OPTION_INT("voltage")
551 else GET_OPTION_INT("tone")
552 else GET_OPTION_INT("fec")
553 else GET_OPTION_INT("srate")
555 else GET_OPTION_INT("modulation")
557 else GET_OPTION_INT("code-rate-hp")
558 else GET_OPTION_INT("code-rate-lp")
559 else GET_OPTION_INT("bandwidth")
560 else GET_OPTION_INT("transmission")
561 else GET_OPTION_INT("guard")
562 else GET_OPTION_INT("hierarchy")
564 else if( !strncmp( psz_parser, "satno=",
565 strlen( "satno=" ) ) )
567 psz_parser += strlen( "satno=" );
568 if ( *psz_parser == 'A' || *psz_parser == 'a' )
570 else if ( *psz_parser == 'B' || *psz_parser == 'b' )
573 val.i_int = strtol( psz_parser, &psz_parser, 0 );
574 var_Set( p_access, "dvb-satno", val );
576 /* Redundant with voltage but much easier to use */
577 else if( !strncmp( psz_parser, "polarization=",
578 strlen( "polarization=" ) ) )
580 psz_parser += strlen( "polarization=" );
581 if ( *psz_parser == 'V' || *psz_parser == 'v' )
583 else if ( *psz_parser == 'H' || *psz_parser == 'h' )
587 msg_Err( p_access, "illegal polarization %c", *psz_parser );
591 var_Set( p_access, "dvb-voltage", val );
595 msg_Err( p_access, "unknown option (%s)", psz_parser );
602 #undef GET_OPTION_INT
603 #undef GET_OPTION_BOOL