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>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
33 #include <vlc/input.h>
35 #include "../../demux/mpeg/system.h"
42 #include <sys/types.h>
49 #ifdef STRNCASECMP_IN_STRINGS_H
55 #define SATELLITE_READ_ONCE 3
57 /*****************************************************************************
59 *****************************************************************************/
60 static int Open( vlc_object_t *p_this );
61 static void Close( vlc_object_t *p_this );
62 static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer,
64 static int SetArea ( input_thread_t *, input_area_t * );
65 static int SetProgram ( input_thread_t *, pgrm_descriptor_t * );
66 static void Seek ( input_thread_t *, off_t );
67 static void AllocateDemux( input_thread_t * p_input, int i_pid,
69 static void CloseProgram( input_thread_t * p_input );
71 /*****************************************************************************
73 *****************************************************************************/
74 #define CACHING_TEXT N_("Caching value in ms")
75 #define CACHING_LONGTEXT N_( \
76 "Allows you to modify the default caching value for dvb streams. This " \
77 "value should be set in millisecond units." )
79 #define PROGRAM_TEXT N_("Program to decode")
80 #define PROGRAM_LONGTEXT N_("This is a workaround for a bug in the input")
82 #define ADAPTER_TEXT N_("Adapter card to tune")
83 #define ADAPTER_LONGTEXT N_("Adapter cards have a device file in directory named /dev/dvb/adapter[n] with n>=0.")
85 #define DEVICE_TEXT N_("Device number to use on adapter")
86 #define DEVICE_LONGTEXT ""
88 #define FREQ_TEXT N_("Transponder/multiplex frequency")
89 #define FREQ_LONGTEXT N_("In kHz for DVB-S or Hz for DVB-C/T")
91 #define INVERSION_TEXT N_("Inversion mode")
92 #define INVERSION_LONGTEXT N_("Inversion mode [0=off, 1=on, 2=auto]")
94 #define PROBE_TEXT N_("Probe DVB card for capabilities")
95 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their capabilities.")
97 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
98 #define LNB_LOF1_LONGTEXT ""
100 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
101 #define LNB_LOF2_LONGTEXT ""
103 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
104 #define LNB_SLOF_LONGTEXT ""
107 #define BUDGET_TEXT N_("Budget mode")
108 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder with a budget card. Budget mode is compatible with the ts2 demux.")
110 #define SATNO_TEXT N_("Satellite number in the Diseqc system")
111 #define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=normal diseqc, -1=A, -2=B simple diseqc")
113 #define VOLTAGE_TEXT N_("LNB voltage")
114 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal]")
116 #define TONE_TEXT N_("22 kHz tone")
117 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto]")
119 #define FEC_TEXT N_("Transponder FEC")
120 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto]")
122 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
123 #define SRATE_LONGTEXT ""
126 #define MODULATION_TEXT N_("Modulation type")
127 #define MODULATION_LONGTEXT N_("Modulation type for front-end device.")
130 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
131 #define CODE_RATE_HP_LONGTEXT ""
133 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
134 #define CODE_RATE_LP_LONGTEXT ""
136 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
137 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
139 #define GUARD_TEXT N_("Terrestrial guard interval")
140 #define GUARD_LONGTEXT ""
142 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
143 #define TRANSMISSION_LONGTEXT ""
145 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
146 #define HIERARCHY_LONGTEXT ""
149 set_description( N_("DVB input with v4l2 support") );
151 add_integer( "dvb-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
152 CACHING_LONGTEXT, VLC_TRUE );
153 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
155 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
157 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
159 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT, INVERSION_LONGTEXT,
161 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
162 add_integer( "dvb-lnb-lof1", 9750000, NULL, LNB_LOF1_TEXT, LNB_LOF1_LONGTEXT,
164 add_integer( "dvb-lnb-lof2", 10600000, NULL, LNB_LOF2_TEXT, LNB_LOF2_LONGTEXT,
166 add_integer( "dvb-lnb-slof", 11700000, NULL, LNB_SLOF_TEXT,
167 LNB_SLOF_LONGTEXT, VLC_TRUE );
168 /* DVB-S (satellite) */
169 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
171 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
173 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
175 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
177 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
178 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
180 /* DVB-T (terrestrial) */
181 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT, MODULATION_LONGTEXT,
183 /* DVB-T (terrestrial) */
184 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
185 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
186 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
187 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
188 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
190 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
191 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
192 TRANSMISSION_LONGTEXT, VLC_TRUE );
193 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
196 set_capability( "access", 0 );
197 add_shortcut( "dvb" );
198 add_shortcut( "dvb-s" );
199 add_shortcut( "qpsk" );
200 add_shortcut( "dvb-c" );
201 add_shortcut( "cable" );
202 add_shortcut( "dvb-t" );
203 add_shortcut( "terrestrial" );
204 add_shortcut( "satellite" ); /* compatibility with the interface. */
205 set_callbacks( Open, Close );
208 /*****************************************************************************
209 * Open: open the frontend device
210 *****************************************************************************/
211 #define GET_OPTION_INT( option ) \
212 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
214 val.i_int = strtol( psz_parser + strlen(option "="), &psz_parser, \
216 var_Set( p_input, "dvb-" option, val ); \
219 #define GET_OPTION_BOOL( option ) \
220 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
222 val.b_bool = strtol( psz_parser + strlen(option "="), &psz_parser, \
224 var_Set( p_input, "dvb-" option, val ); \
227 static int Open( vlc_object_t *p_this )
229 input_thread_t * p_input = (input_thread_t *)p_this;
230 thread_dvb_data_t * p_dvb;
236 /* Initialize structure */
237 p_dvb = (thread_dvb_data_t *)malloc( sizeof( thread_dvb_data_t ) );
240 msg_Err( p_input, "out of memory" );
243 memset( p_dvb, 0, sizeof(thread_dvb_data_t) );
244 p_input->p_access_data = (void *)p_dvb;
246 /* Register callback functions */
247 p_input->pf_read = Read;
248 p_input->pf_set_program = SetProgram;
249 p_input->pf_set_area = SetArea;
250 p_input->pf_seek = Seek;
252 /* Parse the options passed in command line */
254 psz_parser = strdup( p_input->psz_name );
261 var_Create( p_input, "dvb-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
262 var_Get( p_input, "dvb-caching", &val );
263 p_input->i_pts_delay = val.i_int * 1000;
265 var_Create( p_input, "dvb-adapter", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
266 var_Create( p_input, "dvb-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
267 var_Create( p_input, "dvb-frequency", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
268 var_Create( p_input, "dvb-inversion", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
269 var_Create( p_input, "dvb-probe", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
270 var_Create( p_input, "dvb-lnb-lof1", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
271 var_Create( p_input, "dvb-lnb-lof2", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
272 var_Create( p_input, "dvb-lnb-slof", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
274 var_Create( p_input, "dvb-budget-mode", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
275 var_Create( p_input, "dvb-satno", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
276 var_Create( p_input, "dvb-voltage", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
277 var_Create( p_input, "dvb-tone", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
278 var_Create( p_input, "dvb-fec", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
279 var_Create( p_input, "dvb-srate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
281 var_Create( p_input, "dvb-modulation", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
283 var_Create( p_input, "dvb-code-rate-hp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
284 var_Create( p_input, "dvb-code-rate-lp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
285 var_Create( p_input, "dvb-bandwidth", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
286 var_Create( p_input, "dvb-transmission", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
287 var_Create( p_input, "dvb-guard", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
288 var_Create( p_input, "dvb-hierarchy", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
290 i_test = strtol( psz_parser, &psz_next, 10 );
291 if ( psz_next == psz_parser )
295 GET_OPTION_INT("adapter")
296 else GET_OPTION_INT("device")
297 else GET_OPTION_INT("frequency")
298 else GET_OPTION_INT("inversion")
299 else GET_OPTION_BOOL("probe")
300 else GET_OPTION_INT("lnb-lof1")
301 else GET_OPTION_INT("lnb-lof2")
302 else GET_OPTION_INT("lnb-slof")
304 else GET_OPTION_BOOL("budget-mode")
305 else GET_OPTION_INT("voltage")
306 else GET_OPTION_INT("tone")
307 else GET_OPTION_INT("fec")
308 else GET_OPTION_INT("srate")
310 else GET_OPTION_INT("modulation")
312 else GET_OPTION_INT("code-rate-hp")
313 else GET_OPTION_INT("code-rate-lp")
314 else GET_OPTION_INT("bandwidth")
315 else GET_OPTION_INT("transmission")
316 else GET_OPTION_INT("guard")
317 else GET_OPTION_INT("hierarchy")
319 else if( !strncmp( psz_parser, "satno=",
320 strlen( "satno=" ) ) )
322 psz_parser += strlen( "satno=" );
323 if ( *psz_parser == 'A' || *psz_parser == 'a' )
325 else if ( *psz_parser == 'B' || *psz_parser == 'b' )
328 val.i_int = strtol( psz_parser, &psz_parser, 0 );
329 var_Set( p_input, "dvb-satno", val );
331 /* Redundant with voltage but much easier to use */
332 else if( !strncmp( psz_parser, "polarization=",
333 strlen( "polarization=" ) ) )
335 psz_parser += strlen( "polarization=" );
336 if ( *psz_parser == 'V' || *psz_parser == 'v' )
338 else if ( *psz_parser == 'H' || *psz_parser == 'h' )
342 msg_Err( p_input, "illegal polarization %c", *psz_parser );
346 var_Set( p_input, "dvb-voltage", val );
356 msg_Err( p_input, "the DVB input old syntax is deprecated, use vlc " \
357 "-p dvb to see an explanation of the new syntax" );
362 /* Getting frontend info */
363 if ( E_(FrontendOpen)( p_input ) < 0 )
369 /* Setting frontend parameters for tuning the hardware */
370 msg_Dbg( p_input, "trying to tune the frontend...");
371 if ( E_(FrontendSet)( p_input ) < 0 )
373 E_(FrontendClose)( p_input );
378 /* Opening DVR device */
379 if ( E_(DVROpen)( p_input ) < 0 )
381 E_(FrontendClose)( p_input );
386 var_Get( p_input, "dvb-budget-mode", &val );
387 p_dvb->b_budget_mode = val.b_bool;
390 msg_Dbg( p_input, "setting filter on all PIDs" );
391 AllocateDemux( p_input, 0x2000, OTHER_TYPE );
395 msg_Dbg( p_input, "setting filter on PAT" );
396 AllocateDemux( p_input, 0x0, OTHER_TYPE );
399 if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
401 msg_Err( p_input, "could not initialize stream structure" );
402 close( p_dvb->i_handle );
407 vlc_mutex_lock( &p_input->stream.stream_lock );
409 p_input->stream.b_pace_control = 0;
410 p_input->stream.b_seekable = 0;
411 p_input->stream.p_selected_area->i_tell = 0;
413 vlc_mutex_unlock( &p_input->stream.stream_lock );
415 p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
416 p_input->stream.i_method = INPUT_METHOD_SATELLITE;
421 /*****************************************************************************
422 * Close : Close the device
423 *****************************************************************************/
424 static void Close( vlc_object_t *p_this )
426 input_thread_t * p_input = (input_thread_t *)p_this;
427 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
429 if ( !p_dvb->b_budget_mode )
431 CloseProgram( p_input );
433 if ( p_dvb->p_demux_handles[0].i_type )
435 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[0].i_handle );
436 p_dvb->p_demux_handles[0].i_type = 0;
439 E_(FrontendClose)( p_input );
443 /*****************************************************************************
444 * Read: reads data from the satellite card
445 *****************************************************************************/
446 static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer,
449 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
452 struct timeval timeout;
455 if ( !p_dvb->b_budget_mode && !p_dvb->p_demux_handles[1].i_type )
459 var_Get( p_input, "program", &val );
460 i_program = val.i_int;
462 /* FIXME : this is not demux2-compatible */
463 for ( i = 0; i < p_input->stream.i_pgrm_number; i++ )
465 /* Only set a filter on the selected program : some boards
466 * (read: Dreambox) only have 8 filters, so you don't want to
467 * spend them on unwanted PMTs. --Meuuh */
469 || p_input->stream.pp_programs[i]->i_number == i_program )
471 msg_Dbg( p_input, "setting filter on PMT pid %d",
472 p_input->stream.pp_programs[i]->pp_es[0]->i_id );
473 AllocateDemux( p_input,
474 p_input->stream.pp_programs[i]->pp_es[0]->i_id,
480 /* Find if some data is available. This won't work under Windows. */
482 /* Initialize file descriptor set */
484 FD_SET( p_dvb->i_handle, &fds );
486 /* We'll wait 0.5 second if nothing happens */
488 timeout.tv_usec = 500000;
490 /* Find if some data is available */
491 while ( (i_ret = select( p_dvb->i_handle + 1, &fds,
492 NULL, NULL, &timeout )) == 0
493 || (i_ret < 0 && errno == EINTR) )
496 FD_SET( p_dvb->i_handle, &fds );
498 timeout.tv_usec = 500000;
500 if ( p_input->b_die || p_input->b_error )
509 msg_Err( p_input, "select error (%s)", strerror(errno) );
511 msg_Err( p_input, "select error" );
516 i_ret = read( p_dvb->i_handle, p_buffer, i_len );
521 msg_Err( p_input, "read failed (%s)", strerror(errno) );
523 msg_Err( p_input, "read failed" );
530 /*****************************************************************************
531 * SetArea : Does nothing
532 *****************************************************************************/
533 static int SetArea( input_thread_t * p_input, input_area_t * p_area )
538 /*****************************************************************************
539 * SetProgram : Sets the card filters according to the selected program,
540 * and makes the appropriate changes to stream structure.
541 *****************************************************************************/
542 static int SetProgram( input_thread_t * p_input,
543 pgrm_descriptor_t * p_new_prg )
545 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
546 unsigned int i_es_index;
548 int i_video_type = VIDEO0_TYPE;
549 int i_audio_type = AUDIO0_TYPE;
551 if ( p_input->stream.p_selected_program )
553 for ( i_es_index = 0; /* 0 should be the PMT */
554 i_es_index < p_input->stream.p_selected_program->i_es_number;
557 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
560 input_UnselectES( p_input , p_es );
566 if ( !p_dvb->b_budget_mode )
568 msg_Dbg( p_input, "unsetting filters on all pids" );
569 CloseProgram( p_input );
570 msg_Dbg( p_input, "setting filter on PMT pid %d",
571 p_new_prg->pp_es[0]->i_id );
572 AllocateDemux( p_input, p_new_prg->pp_es[0]->i_id, OTHER_TYPE );
575 for ( i_es_index = 1; i_es_index < p_new_prg->i_es_number;
578 #define p_es p_new_prg->pp_es[i_es_index]
579 switch( p_es->i_cat )
582 if ( !p_dvb->b_budget_mode )
584 msg_Dbg(p_input, "setting filter on video ES 0x%x",
586 /* Always set the filter. This may seem a little odd, but
587 * it allows you to stream the video with demuxstream
588 * without having a decoder or a stream output behind.
589 * The result is you'll sometimes filter a PID which you
590 * don't really want, but in the most common cases it
591 * should be OK. --Meuuh */
592 AllocateDemux( p_input, p_es->i_id, i_video_type );
593 i_video_type += TYPE_INTERVAL;
595 input_SelectES( p_input, p_es );
599 if ( !p_dvb->b_budget_mode )
601 msg_Dbg(p_input, "setting filter on audio ES 0x%x",
603 AllocateDemux( p_input, p_es->i_id, i_audio_type );
604 i_audio_type += TYPE_INTERVAL;
606 input_SelectES( p_input, p_es );
609 if ( !p_dvb->b_budget_mode )
611 msg_Dbg(p_input, "setting filter on other ES 0x%x",
613 AllocateDemux( p_input, p_es->i_id, OTHER_TYPE );
615 input_SelectES( p_input, p_es );
621 p_input->stream.p_selected_program = p_new_prg;
623 /* Update the navigation variables without triggering a callback */
624 val.i_int = p_new_prg->i_number;
625 var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
630 /*****************************************************************************
631 * Seek: does nothing (not a seekable stream
632 *****************************************************************************/
633 static void Seek( input_thread_t * p_input, off_t i_off )
638 /*****************************************************************************
640 *****************************************************************************/
641 static void AllocateDemux( input_thread_t * p_input, int i_pid,
644 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
647 /* Find first free slot */
648 for ( i = 0; i < MAX_DEMUX; i++ )
650 if ( !p_dvb->p_demux_handles[i].i_type )
652 if ( E_(DMXSetFilter)( p_input, i_pid,
653 &p_dvb->p_demux_handles[i].i_handle,
658 p_dvb->p_demux_handles[i].i_type = i_type;
659 p_dvb->p_demux_handles[i].i_pid = i_pid;
665 /*****************************************************************************
667 *****************************************************************************/
668 static void CloseProgram( input_thread_t * p_input )
670 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
673 for ( i = 1; i < MAX_DEMUX; i++ )
675 if ( p_dvb->p_demux_handles[i].i_type )
677 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[i].i_handle );
678 p_dvb->p_demux_handles[i].i_type = 0;