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") );
147 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
149 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
151 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
153 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT, INVERSION_LONGTEXT,
155 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
156 add_integer( "dvb-lnb-lof1", 9750000, NULL, LNB_LOF1_TEXT, LNB_LOF1_LONGTEXT,
158 add_integer( "dvb-lnb-lof2", 10600000, NULL, LNB_LOF2_TEXT, LNB_LOF2_LONGTEXT,
160 add_integer( "dvb-lnb-slof", 11700000, NULL, LNB_SLOF_TEXT,
161 LNB_SLOF_LONGTEXT, VLC_TRUE );
162 /* DVB-S (satellite) */
163 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
165 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
167 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
169 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
171 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
172 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
174 /* DVB-T (terrestrial) */
175 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT, MODULATION_LONGTEXT,
177 /* DVB-T (terrestrial) */
178 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
179 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
180 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
181 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
182 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
184 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
185 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
186 TRANSMISSION_LONGTEXT, VLC_TRUE );
187 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
190 set_capability( "access", 0 );
191 add_shortcut( "dvb" );
192 add_shortcut( "dvb-s" );
193 add_shortcut( "qpsk" );
194 add_shortcut( "dvb-c" );
195 add_shortcut( "cable" );
196 add_shortcut( "dvb-t" );
197 add_shortcut( "terrestrial" );
198 add_shortcut( "satellite" ); /* compatibility with the interface. */
199 set_callbacks( Open, Close );
202 /*****************************************************************************
203 * Open: open the frontend device
204 *****************************************************************************/
205 #define GET_OPTION_INT( option ) \
206 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
208 val.i_int = strtol( psz_parser + strlen(option "="), &psz_parser, \
210 var_Set( p_input, "dvb-" option, val ); \
213 #define GET_OPTION_BOOL( option ) \
214 if ( !strncmp( psz_parser, option "=", strlen(option "=") ) ) \
216 val.b_bool = strtol( psz_parser + strlen(option "="), &psz_parser, \
218 var_Set( p_input, "dvb-" option, val ); \
221 static int Open( vlc_object_t *p_this )
223 input_thread_t * p_input = (input_thread_t *)p_this;
224 thread_dvb_data_t * p_dvb;
230 /* Initialize structure */
231 p_dvb = malloc( sizeof( thread_dvb_data_t ) );
234 msg_Err( p_input, "out of memory" );
237 memset( p_dvb, 0, sizeof(thread_dvb_data_t) );
238 p_input->p_access_data = (void *)p_dvb;
240 /* Register callback functions */
241 p_input->pf_read = Read;
242 p_input->pf_set_program = SetProgram;
243 p_input->pf_set_area = SetArea;
244 p_input->pf_seek = Seek;
246 /* Parse the options passed in command line */
248 psz_parser = strdup( p_input->psz_name );
255 var_Create( p_input, "dvb-adapter", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
256 var_Create( p_input, "dvb-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
257 var_Create( p_input, "dvb-frequency", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
258 var_Create( p_input, "dvb-inversion", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
259 var_Create( p_input, "dvb-probe", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
260 var_Create( p_input, "dvb-lnb-lof1", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
261 var_Create( p_input, "dvb-lnb-lof2", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
262 var_Create( p_input, "dvb-lnb-slof", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
264 var_Create( p_input, "dvb-budget-mode", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
265 var_Create( p_input, "dvb-satno", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
266 var_Create( p_input, "dvb-voltage", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
267 var_Create( p_input, "dvb-tone", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
268 var_Create( p_input, "dvb-fec", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
269 var_Create( p_input, "dvb-srate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
271 var_Create( p_input, "dvb-modulation", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
273 var_Create( p_input, "dvb-code-rate-hp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
274 var_Create( p_input, "dvb-code-rate-lp", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
275 var_Create( p_input, "dvb-bandwidth", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
276 var_Create( p_input, "dvb-transmission", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
277 var_Create( p_input, "dvb-guard", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
278 var_Create( p_input, "dvb-hierarchy", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
280 i_test = strtol( psz_parser, &psz_next, 10 );
281 if ( psz_next == psz_parser )
285 GET_OPTION_INT("adapter")
286 else GET_OPTION_INT("device")
287 else GET_OPTION_INT("frequency")
288 else GET_OPTION_INT("inversion")
289 else GET_OPTION_BOOL("probe")
290 else GET_OPTION_INT("lnb-lof1")
291 else GET_OPTION_INT("lnb-lof2")
292 else GET_OPTION_INT("lnb-slof")
294 else GET_OPTION_BOOL("budget-mode")
295 else GET_OPTION_INT("voltage")
296 else GET_OPTION_INT("tone")
297 else GET_OPTION_INT("fec")
298 else GET_OPTION_INT("srate")
300 else GET_OPTION_INT("modulation")
302 else GET_OPTION_INT("code-rate-hp")
303 else GET_OPTION_INT("code-rate-lp")
304 else GET_OPTION_INT("bandwidth")
305 else GET_OPTION_INT("transmission")
306 else GET_OPTION_INT("guard")
307 else GET_OPTION_INT("hierarchy")
309 else if( !strncmp( psz_parser, "satno=",
310 strlen( "satno=" ) ) )
312 psz_parser += strlen( "satno=" );
313 if ( *psz_parser == 'A' || *psz_parser == 'a' )
315 else if ( *psz_parser == 'B' || *psz_parser == 'b' )
318 val.i_int = strtol( psz_parser, &psz_parser, 0 );
319 var_Set( p_input, "dvb-satno", val );
321 /* Redundant with voltage but much easier to use */
322 else if( !strncmp( psz_parser, "polarization=",
323 strlen( "polarization=" ) ) )
325 psz_parser += strlen( "polarization=" );
326 if ( *psz_parser == 'V' || *psz_parser == 'v' )
328 else if ( *psz_parser == 'H' || *psz_parser == 'h' )
332 msg_Err( p_input, "illegal polarization %c", *psz_parser );
336 var_Set( p_input, "dvb-voltage", val );
346 msg_Err( p_input, "the DVB input old syntax is deprecated, use vlc " \
347 "-p dvb to see an explanation of the new syntax" );
352 /* Getting frontend info */
353 if ( E_(FrontendOpen)( p_input ) < 0 )
359 /* Setting frontend parameters for tuning the hardware */
360 msg_Dbg( p_input, "trying to tune the frontend...");
361 if ( E_(FrontendSet)( p_input ) < 0 )
363 E_(FrontendClose)( p_input );
368 /* Opening DVR device */
369 if ( E_(DVROpen)( p_input ) < 0 )
371 E_(FrontendClose)( p_input );
376 var_Get( p_input, "dvb-budget-mode", &val );
377 p_dvb->b_budget_mode = val.b_bool;
380 msg_Dbg( p_input, "setting filter on all PIDs" );
381 AllocateDemux( p_input, 0x2000, OTHER_TYPE );
385 msg_Dbg( p_input, "setting filter on PAT" );
386 AllocateDemux( p_input, 0x0, OTHER_TYPE );
389 if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
391 msg_Err( p_input, "could not initialize stream structure" );
392 close( p_dvb->i_handle );
397 vlc_mutex_lock( &p_input->stream.stream_lock );
399 p_input->stream.b_pace_control = 0;
400 p_input->stream.b_seekable = 0;
401 p_input->stream.p_selected_area->i_tell = 0;
403 vlc_mutex_unlock( &p_input->stream.stream_lock );
405 p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
406 p_input->stream.i_method = INPUT_METHOD_SATELLITE;
411 /*****************************************************************************
412 * Close : Close the device
413 *****************************************************************************/
414 static void Close( vlc_object_t *p_this )
416 input_thread_t * p_input = (input_thread_t *)p_this;
417 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
419 if ( !p_dvb->b_budget_mode )
421 CloseProgram( p_input );
423 if ( p_dvb->p_demux_handles[0].i_type )
425 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[0].i_handle );
426 p_dvb->p_demux_handles[0].i_type = 0;
430 /*****************************************************************************
431 * Read: reads data from the satellite card
432 *****************************************************************************/
433 static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer,
436 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
439 struct timeval timeout;
442 if ( !p_dvb->b_budget_mode && !p_dvb->p_demux_handles[1].i_type )
446 var_Get( p_input, "program", &val );
447 i_program = val.i_int;
449 /* FIXME : this is not demux2-compatible */
450 for ( i = 0; i < p_input->stream.i_pgrm_number; i++ )
452 /* Only set a filter on the selected program : some boards
453 * (read: Dreambox) only have 8 filters, so you don't want to
454 * spend them on unwanted PMTs. --Meuuh */
456 || p_input->stream.pp_programs[i]->i_number == i_program )
458 msg_Dbg( p_input, "setting filter on PMT pid %d",
459 p_input->stream.pp_programs[i]->pp_es[0]->i_id );
460 AllocateDemux( p_input,
461 p_input->stream.pp_programs[i]->pp_es[0]->i_id,
467 /* Find if some data is available. This won't work under Windows. */
469 /* Initialize file descriptor set */
471 FD_SET( p_dvb->i_handle, &fds );
473 /* We'll wait 0.5 second if nothing happens */
475 timeout.tv_usec = 500000;
477 /* Find if some data is available */
478 while ( (i_ret = select( p_dvb->i_handle + 1, &fds,
479 NULL, NULL, &timeout )) == 0
480 || (i_ret < 0 && errno == EINTR) )
483 FD_SET( p_dvb->i_handle, &fds );
485 timeout.tv_usec = 500000;
487 if ( p_input->b_die || p_input->b_error )
496 msg_Err( p_input, "select error (%s)", strerror(errno) );
498 msg_Err( p_input, "select error" );
503 i_ret = read( p_dvb->i_handle, p_buffer, i_len );
508 msg_Err( p_input, "read failed (%s)", strerror(errno) );
510 msg_Err( p_input, "read failed" );
517 /*****************************************************************************
518 * SetArea : Does nothing
519 *****************************************************************************/
520 static int SetArea( input_thread_t * p_input, input_area_t * p_area )
525 /*****************************************************************************
526 * SetProgram : Sets the card filters according to the selected program,
527 * and makes the appropriate changes to stream structure.
528 *****************************************************************************/
529 static int SetProgram( input_thread_t * p_input,
530 pgrm_descriptor_t * p_new_prg )
532 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
533 unsigned int i_es_index;
535 int i_video_type = VIDEO0_TYPE;
536 int i_audio_type = AUDIO0_TYPE;
538 if ( p_input->stream.p_selected_program )
540 for ( i_es_index = 0; /* 0 should be the PMT */
541 i_es_index < p_input->stream.p_selected_program->i_es_number;
544 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
547 input_UnselectES( p_input , p_es );
553 if ( !p_dvb->b_budget_mode )
555 msg_Dbg( p_input, "unsetting filters on all pids" );
556 CloseProgram( p_input );
557 msg_Dbg( p_input, "setting filter on PMT pid %d",
558 p_new_prg->pp_es[0]->i_id );
559 AllocateDemux( p_input, p_new_prg->pp_es[0]->i_id, OTHER_TYPE );
562 for ( i_es_index = 1; i_es_index < p_new_prg->i_es_number;
565 #define p_es p_new_prg->pp_es[i_es_index]
566 switch( p_es->i_cat )
569 if ( !p_dvb->b_budget_mode )
571 msg_Dbg(p_input, "setting filter on video ES 0x%x",
573 /* Always set the filter. This may seem a little odd, but
574 * it allows you to stream the video with demuxstream
575 * without having a decoder or a stream output behind.
576 * The result is you'll sometimes filter a PID which you
577 * don't really want, but in the most common cases it
578 * should be OK. --Meuuh */
579 AllocateDemux( p_input, p_es->i_id, i_video_type );
580 i_video_type += TYPE_INTERVAL;
582 input_SelectES( p_input, p_es );
586 if ( !p_dvb->b_budget_mode )
588 msg_Dbg(p_input, "setting filter on audio ES 0x%x",
590 AllocateDemux( p_input, p_es->i_id, i_audio_type );
591 i_audio_type += TYPE_INTERVAL;
593 input_SelectES( p_input, p_es );
596 if ( !p_dvb->b_budget_mode )
598 msg_Dbg(p_input, "setting filter on other ES 0x%x",
600 AllocateDemux( p_input, p_es->i_id, OTHER_TYPE );
602 input_SelectES( p_input, p_es );
608 p_input->stream.p_selected_program = p_new_prg;
610 /* Update the navigation variables without triggering a callback */
611 val.i_int = p_new_prg->i_number;
612 var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
617 /*****************************************************************************
618 * Seek: does nothing (not a seekable stream
619 *****************************************************************************/
620 static void Seek( input_thread_t * p_input, off_t i_off )
625 /*****************************************************************************
627 *****************************************************************************/
628 static void AllocateDemux( input_thread_t * p_input, int i_pid,
631 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
634 /* Find first free slot */
635 for ( i = 0; i < MAX_DEMUX; i++ )
637 if ( !p_dvb->p_demux_handles[i].i_type )
639 if ( E_(DMXSetFilter)( p_input, i_pid,
640 &p_dvb->p_demux_handles[i].i_handle,
645 p_dvb->p_demux_handles[i].i_type = i_type;
646 p_dvb->p_demux_handles[i].i_pid = i_pid;
652 /*****************************************************************************
654 *****************************************************************************/
655 static void CloseProgram( input_thread_t * p_input )
657 thread_dvb_data_t * p_dvb = (thread_dvb_data_t *)p_input->p_access_data;
660 for ( i = 1; i < MAX_DEMUX; i++ )
662 if ( p_dvb->p_demux_handles[i].i_type )
664 E_(DMXUnsetFilter)( p_input, p_dvb->p_demux_handles[i].i_handle );
665 p_dvb->p_demux_handles[i].i_type = 0;