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 PROGRAM_TEXT N_("Program to decode")
75 #define PROGRAM_LONGTEXT N_("This is a workaround for a bug in the input")
77 #define ADAPTER_TEXT N_("Adapter card to tune")
78 #define ADAPTER_LONGTEXT N_("Adapter cards have a device file in directory named /dev/dvb/adapter[n] with n>=0.")
80 #define DEVICE_TEXT N_("Device number to use on adapter")
81 #define DEVICE_LONGTEXT ""
83 #define FREQ_TEXT N_("Transponder/multiplex frequency")
84 #define FREQ_LONGTEXT N_("In kHz for DVB-S or Hz for DVB-C/T")
86 #define INVERSION_TEXT N_("Inversion mode")
87 #define INVERSION_LONGTEXT N_("Inversion mode [0=off, 1=on, 2=auto]")
89 #define PROBE_TEXT N_("Probe DVB card for capabilities")
90 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their capabilities.")
92 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
93 #define LNB_LOF1_LONGTEXT ""
95 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
96 #define LNB_LOF2_LONGTEXT ""
98 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
99 #define LNB_SLOF_LONGTEXT ""
102 #define BUDGET_TEXT N_("Budget mode")
103 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder with a budget card. Budget mode is compatible with the ts2 demux.")
105 #define SATNO_TEXT N_("Satellite number in the Diseqc system")
106 #define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=normal diseqc, -1=A, -2=B simple diseqc")
108 #define VOLTAGE_TEXT N_("LNB voltage")
109 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal]")
111 #define TONE_TEXT N_("22 kHz tone")
112 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto]")
114 #define FEC_TEXT N_("Transponder FEC")
115 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto]")
117 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
118 #define SRATE_LONGTEXT ""
121 #define MODULATION_TEXT N_("Modulation type")
122 #define MODULATION_LONGTEXT N_("Modulation type for front-end device.")
125 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
126 #define CODE_RATE_HP_LONGTEXT ""
128 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
129 #define CODE_RATE_LP_LONGTEXT ""
131 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
132 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
134 #define GUARD_TEXT N_("Terrestrial guard interval")
135 #define GUARD_LONGTEXT ""
137 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
138 #define TRANSMISSION_LONGTEXT ""
140 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
141 #define HIERARCHY_LONGTEXT ""
144 set_description( N_("DVB input with v4l2 support") );
146 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
148 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
150 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
152 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT, INVERSION_LONGTEXT,
154 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
155 add_integer( "dvb-lnb-lof1", 9750000, NULL, LNB_LOF1_TEXT, LNB_LOF1_LONGTEXT,
157 add_integer( "dvb-lnb-lof2", 10600000, NULL, LNB_LOF2_TEXT, LNB_LOF2_LONGTEXT,
159 add_integer( "dvb-lnb-slof", 11700000, NULL, LNB_SLOF_TEXT,
160 LNB_SLOF_LONGTEXT, VLC_TRUE );
161 /* DVB-S (satellite) */
162 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
164 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
166 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
168 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
170 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
171 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
173 /* DVB-T (terrestrial) */
174 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT, MODULATION_LONGTEXT,
176 /* DVB-T (terrestrial) */
177 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
178 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
179 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
180 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
181 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
183 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
184 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
185 TRANSMISSION_LONGTEXT, VLC_TRUE );
186 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
189 set_capability( "access", 0 );
190 add_shortcut( "dvb" );
191 add_shortcut( "dvb-s" );
192 add_shortcut( "qpsk" );
193 add_shortcut( "dvb-c" );
194 add_shortcut( "cable" );
195 add_shortcut( "dvb-t" );
196 add_shortcut( "terrestrial" );
197 add_shortcut( "satellite" ); /* compatibility with the interface. */
198 set_callbacks( Open, Close );
201 /*****************************************************************************
202 * Open: open the frontend device
203 *****************************************************************************/
204 #define GET_OPTION_INT( option ) \
205 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
207 val.i_int = strtol( psz_parser + strlen(option "="), &psz_parser, \
209 var_Set( p_input, "dvb-" option, val ); \
212 #define GET_OPTION_BOOL( option ) \
213 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
215 val.b_bool = strtol( psz_parser + strlen(option "="), &psz_parser, \
217 var_Set( p_input, "dvb-" option, val ); \
220 static int Open( vlc_object_t *p_this )
222 input_thread_t * p_input = (input_thread_t *)p_this;
223 thread_dvb_data_t * p_dvb;
229 /* Initialize structure */
230 p_dvb = (thread_dvb_data_t *)malloc( sizeof( thread_dvb_data_t ) );
233 msg_Err( p_input, "out of memory" );
236 memset( p_dvb, 0, sizeof(thread_dvb_data_t) );
237 p_input->p_access_data = (void *)p_dvb;
239 /* Register callback functions */
240 p_input->pf_read = Read;
241 p_input->pf_set_program = SetProgram;
242 p_input->pf_set_area = SetArea;
243 p_input->pf_seek = Seek;
245 /* Parse the options passed in command line */
247 psz_parser = strdup( p_input->psz_name );
254 var_Create( p_input, "dvb-adapter", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
255 var_Create( p_input, "dvb-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
256 var_Create( p_input, "dvb-frequency", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
257 var_Create( p_input, "dvb-inversion", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
258 var_Create( p_input, "dvb-probe", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
259 var_Create( p_input, "dvb-lnb-lof1", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
260 var_Create( p_input, "dvb-lnb-lof2", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
261 var_Create( p_input, "dvb-lnb-slof", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
263 var_Create( p_input, "dvb-budget-mode", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
264 var_Create( p_input, "dvb-satno", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
265 var_Create( p_input, "dvb-voltage", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
266 var_Create( p_input, "dvb-tone", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
267 var_Create( p_input, "dvb-fec", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
268 var_Create( p_input, "dvb-srate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
270 var_Create( p_input, "dvb-modulation", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
272 var_Create( p_input, "dvb-code-rate-hp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
273 var_Create( p_input, "dvb-code-rate-lp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
274 var_Create( p_input, "dvb-bandwidth", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
275 var_Create( p_input, "dvb-transmission", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
276 var_Create( p_input, "dvb-guard", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
277 var_Create( p_input, "dvb-hierarchy", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
279 i_test = strtol( psz_parser, &psz_next, 10 );
280 if ( psz_next == psz_parser )
284 GET_OPTION_INT("adapter")
285 else GET_OPTION_INT("device")
286 else GET_OPTION_INT("frequency")
287 else GET_OPTION_INT("inversion")
288 else GET_OPTION_BOOL("probe")
289 else GET_OPTION_INT("lnb-lof1")
290 else GET_OPTION_INT("lnb-lof2")
291 else GET_OPTION_INT("lnb-slof")
293 else GET_OPTION_BOOL("budget-mode")
294 else GET_OPTION_INT("voltage")
295 else GET_OPTION_INT("tone")
296 else GET_OPTION_INT("fec")
297 else GET_OPTION_INT("srate")
299 else GET_OPTION_INT("modulation")
301 else GET_OPTION_INT("code-rate-hp")
302 else GET_OPTION_INT("code-rate-lp")
303 else GET_OPTION_INT("bandwidth")
304 else GET_OPTION_INT("transmission")
305 else GET_OPTION_INT("guard")
306 else GET_OPTION_INT("hierarchy")
308 else if( !strncmp( psz_parser, "satno=",
309 strlen( "satno=" ) ) )
311 psz_parser += strlen( "satno=" );
312 if ( *psz_parser == 'A' || *psz_parser == 'a' )
314 else if ( *psz_parser == 'B' || *psz_parser == 'b' )
317 val.i_int = strtol( psz_parser, &psz_parser, 0 );
318 var_Set( p_input, "dvb-satno", val );
320 /* Redundant with voltage but much easier to use */
321 else if( !strncmp( psz_parser, "polarization=",
322 strlen( "polarization=" ) ) )
324 psz_parser += strlen( "polarization=" );
325 if ( *psz_parser == 'V' || *psz_parser == 'v' )
327 else if ( *psz_parser == 'H' || *psz_parser == 'h' )
331 msg_Err( p_input, "illegal polarization %c", *psz_parser );
335 var_Set( p_input, "dvb-voltage", val );
345 msg_Err( p_input, "the DVB input old syntax is deprecated, use vlc " \
346 "-p dvb to see an explanation of the new syntax" );
351 /* Getting frontend info */
352 if ( E_(FrontendOpen)( p_input ) < 0 )
358 /* Setting frontend parameters for tuning the hardware */
359 msg_Dbg( p_input, "trying to tune the frontend...");
360 if ( E_(FrontendSet)( p_input ) < 0 )
362 E_(FrontendClose)( p_input );
367 /* Opening DVR device */
368 if ( E_(DVROpen)( p_input ) < 0 )
370 E_(FrontendClose)( p_input );
375 var_Get( p_input, "dvb-budget-mode", &val );
376 p_dvb->b_budget_mode = val.b_bool;
379 msg_Dbg( p_input, "setting filter on all PIDs" );
380 AllocateDemux( p_input, 0x2000, OTHER_TYPE );
384 msg_Dbg( p_input, "setting filter on PAT" );
385 AllocateDemux( p_input, 0x0, OTHER_TYPE );
388 if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
390 msg_Err( p_input, "could not initialize stream structure" );
391 close( p_dvb->i_handle );
396 vlc_mutex_lock( &p_input->stream.stream_lock );
398 p_input->stream.b_pace_control = 0;
399 p_input->stream.b_seekable = 0;
400 p_input->stream.p_selected_area->i_tell = 0;
402 vlc_mutex_unlock( &p_input->stream.stream_lock );
404 p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
405 p_input->stream.i_method = INPUT_METHOD_SATELLITE;
410 /*****************************************************************************
411 * Close : Close the device
412 *****************************************************************************/
413 static void Close( vlc_object_t *p_this )
415 input_thread_t * p_input = (input_thread_t *)p_this;
416 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
418 if ( !p_dvb->b_budget_mode )
420 CloseProgram( p_input );
422 if ( p_dvb->p_demux_handles[0].i_type )
424 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[0].i_handle );
425 p_dvb->p_demux_handles[0].i_type = 0;
428 E_(FrontendClose)( p_input );
432 /*****************************************************************************
433 * Read: reads data from the satellite card
434 *****************************************************************************/
435 static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer,
438 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
441 struct timeval timeout;
444 if ( !p_dvb->b_budget_mode && !p_dvb->p_demux_handles[1].i_type )
448 var_Get( p_input, "program", &val );
449 i_program = val.i_int;
451 /* FIXME : this is not demux2-compatible */
452 for ( i = 0; i < p_input->stream.i_pgrm_number; i++ )
454 /* Only set a filter on the selected program : some boards
455 * (read: Dreambox) only have 8 filters, so you don't want to
456 * spend them on unwanted PMTs. --Meuuh */
458 || p_input->stream.pp_programs[i]->i_number == i_program )
460 msg_Dbg( p_input, "setting filter on PMT pid %d",
461 p_input->stream.pp_programs[i]->pp_es[0]->i_id );
462 AllocateDemux( p_input,
463 p_input->stream.pp_programs[i]->pp_es[0]->i_id,
469 /* Find if some data is available. This won't work under Windows. */
471 /* Initialize file descriptor set */
473 FD_SET( p_dvb->i_handle, &fds );
475 /* We'll wait 0.5 second if nothing happens */
477 timeout.tv_usec = 500000;
479 /* Find if some data is available */
480 while ( (i_ret = select( p_dvb->i_handle + 1, &fds,
481 NULL, NULL, &timeout )) == 0
482 || (i_ret < 0 && errno == EINTR) )
485 FD_SET( p_dvb->i_handle, &fds );
487 timeout.tv_usec = 500000;
489 if ( p_input->b_die || p_input->b_error )
498 msg_Err( p_input, "select error (%s)", strerror(errno) );
500 msg_Err( p_input, "select error" );
505 i_ret = read( p_dvb->i_handle, p_buffer, i_len );
510 msg_Err( p_input, "read failed (%s)", strerror(errno) );
512 msg_Err( p_input, "read failed" );
519 /*****************************************************************************
520 * SetArea : Does nothing
521 *****************************************************************************/
522 static int SetArea( input_thread_t * p_input, input_area_t * p_area )
527 /*****************************************************************************
528 * SetProgram : Sets the card filters according to the selected program,
529 * and makes the appropriate changes to stream structure.
530 *****************************************************************************/
531 static int SetProgram( input_thread_t * p_input,
532 pgrm_descriptor_t * p_new_prg )
534 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
535 unsigned int i_es_index;
537 int i_video_type = VIDEO0_TYPE;
538 int i_audio_type = AUDIO0_TYPE;
540 if ( p_input->stream.p_selected_program )
542 for ( i_es_index = 0; /* 0 should be the PMT */
543 i_es_index < p_input->stream.p_selected_program->i_es_number;
546 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
549 input_UnselectES( p_input , p_es );
555 if ( !p_dvb->b_budget_mode )
557 msg_Dbg( p_input, "unsetting filters on all pids" );
558 CloseProgram( p_input );
559 msg_Dbg( p_input, "setting filter on PMT pid %d",
560 p_new_prg->pp_es[0]->i_id );
561 AllocateDemux( p_input, p_new_prg->pp_es[0]->i_id, OTHER_TYPE );
564 for ( i_es_index = 1; i_es_index < p_new_prg->i_es_number;
567 #define p_es p_new_prg->pp_es[i_es_index]
568 switch( p_es->i_cat )
571 if ( !p_dvb->b_budget_mode )
573 msg_Dbg(p_input, "setting filter on video ES 0x%x",
575 /* Always set the filter. This may seem a little odd, but
576 * it allows you to stream the video with demuxstream
577 * without having a decoder or a stream output behind.
578 * The result is you'll sometimes filter a PID which you
579 * don't really want, but in the most common cases it
580 * should be OK. --Meuuh */
581 AllocateDemux( p_input, p_es->i_id, i_video_type );
582 i_video_type += TYPE_INTERVAL;
584 input_SelectES( p_input, p_es );
588 if ( !p_dvb->b_budget_mode )
590 msg_Dbg(p_input, "setting filter on audio ES 0x%x",
592 AllocateDemux( p_input, p_es->i_id, i_audio_type );
593 i_audio_type += TYPE_INTERVAL;
595 input_SelectES( p_input, p_es );
598 if ( !p_dvb->b_budget_mode )
600 msg_Dbg(p_input, "setting filter on other ES 0x%x",
602 AllocateDemux( p_input, p_es->i_id, OTHER_TYPE );
604 input_SelectES( p_input, p_es );
610 p_input->stream.p_selected_program = p_new_prg;
612 /* Update the navigation variables without triggering a callback */
613 val.i_int = p_new_prg->i_number;
614 var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
619 /*****************************************************************************
620 * Seek: does nothing (not a seekable stream
621 *****************************************************************************/
622 static void Seek( input_thread_t * p_input, off_t i_off )
627 /*****************************************************************************
629 *****************************************************************************/
630 static void AllocateDemux( input_thread_t * p_input, int i_pid,
633 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
636 /* Find first free slot */
637 for ( i = 0; i < MAX_DEMUX; i++ )
639 if ( !p_dvb->p_demux_handles[i].i_type )
641 if ( E_(DMXSetFilter)( p_input, i_pid,
642 &p_dvb->p_demux_handles[i].i_handle,
647 p_dvb->p_demux_handles[i].i_type = i_type;
648 p_dvb->p_demux_handles[i].i_pid = i_pid;
654 /*****************************************************************************
656 *****************************************************************************/
657 static void CloseProgram( input_thread_t * p_input )
659 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
662 for ( i = 1; i < MAX_DEMUX; i++ )
664 if ( p_dvb->p_demux_handles[i].i_type )
666 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[i].i_handle );
667 p_dvb->p_demux_handles[i].i_type = 0;