1 /*****************************************************************************
2 * bda.c : BDA access module for vlc
3 *****************************************************************************
4 * Copyright (C) 2007 the VideoLAN team
6 * Author: Ken Self <kens@campoz.fslife.co.uk>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
28 /*****************************************************************************
29 * Access: local prototypes
30 *****************************************************************************/
31 static int Open( vlc_object_t *p_this );
32 static int ParsePath( access_t *p_access, const char* psz_module,
33 const int i_param_count, const char** psz_param, const int* i_type );
34 static void Close( vlc_object_t *p_this );
35 static block_t *Block( access_t * );
36 static int Control( access_t *, int, va_list );
39 #define CACHING_TEXT N_("Caching value in ms")
40 #define CACHING_LONGTEXT N_( \
41 "Caching value for DVB streams. This " \
42 "value should be set in milliseconds." )
44 #define ADAPTER_TEXT N_("Adapter card to tune")
45 #define ADAPTER_LONGTEXT N_("Adapter cards have a device file in directory " \
46 "named /dev/dvb/adapter[n] with n>=0.")
48 #define DEVICE_TEXT N_("Device number to use on adapter")
49 #define DEVICE_LONGTEXT ""
51 #define FREQ_TEXT N_("Transponder/multiplex frequency")
52 #if defined(WIN32) || defined(WINCE)
53 # define FREQ_LONGTEXT N_("In kHz for DVB-S or Hz for DVB-C/T")
55 # define FREQ_LONGTEXT N_("In kHz for DVB-C/S/T")
58 #define INVERSION_TEXT N_("Inversion mode")
59 #define INVERSION_LONGTEXT N_("Inversion mode [0=off, 1=on, 2=auto]")
60 static const int i_inversion_list[] = { -1, 0, 1, 2 };
61 static const char *ppsz_inversion_text[] = { N_("Undefined"), N_("Off"),
62 N_("On"), N_("Auto") };
64 #define PROBE_TEXT N_("Probe DVB card for capabilities")
65 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their " \
66 "capabilities, you can disable this feature if you experience some " \
69 #define BUDGET_TEXT N_("Budget mode")
70 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder " \
71 "with a \"budget\" card.")
74 #if defined(WIN32) || defined(WINCE)
75 # define NETID_TEXT N_("Network Identifier")
76 # define NETID_LONGTEXT ""
78 # define SATNO_TEXT N_("Satellite number in the Diseqc system")
79 # define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=satellite number].")
82 #define VOLTAGE_TEXT N_("LNB voltage")
83 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal].")
85 #define HIGH_VOLTAGE_TEXT N_("High LNB voltage")
86 #define HIGH_VOLTAGE_LONGTEXT N_("Enable high voltage if your cables are " \
87 "particularly long. This is not supported by all frontends.")
89 #define TONE_TEXT N_("22 kHz tone")
90 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto].")
92 #define FEC_TEXT N_("Transponder FEC")
93 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto].")
95 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
96 #define SRATE_LONGTEXT ""
98 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
99 #define LNB_LOF1_LONGTEXT N_("Low Band Local Osc Freq in kHz usually 9.75GHz")
101 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
102 #define LNB_LOF2_LONGTEXT N_("High Band Local Osc Freq in kHz usually 10.6GHz")
104 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
105 #define LNB_SLOF_LONGTEXT N_( \
106 "Low Noise Block switch freq in kHz usually 11.7GHz")
109 #define MODULATION_TEXT N_("Modulation type")
110 #define MODULATION_LONGTEXT N_("QAM constellation points " \
111 "[16, 32, 64, 128, 256]")
112 static const int i_qam_list[] = { -1, 16, 32, 64, 128, 256 };
113 static const char *ppsz_qam_text[] = { N_("Undefined"), N_("16"), N_("32"),
114 N_("64"), N_("128"), N_("256") };
117 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
118 #define CODE_RATE_HP_LONGTEXT N_("High Priority FEC Rate " \
119 "[Undefined,1/2,2/3,3/4,5/6,7/8]")
120 static const int i_hp_fec_list[] = { -1, 1, 2, 3, 4, 5 };
121 static const char *ppsz_hp_fec_text[] = { N_("Undefined"), N_("1/2"), N_("2/3"),
122 N_("3/4"), N_("5/6"), N_("7/8") };
124 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
125 #define CODE_RATE_LP_LONGTEXT N_("Low Priority FEC Rate " \
126 "[Undefined,1/2,2/3,3/4,5/6,7/8]")
127 static const int i_lp_fec_list[] = { -1, 1, 2, 3, 4, 5 };
128 static const char *ppsz_lp_fec_text[] = { N_("Undefined"), N_("1/2"), N_("2/3"),
129 N_("3/4"), N_("5/6"), N_("7/8") };
131 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
132 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
133 static const int i_band_list[] = { -1, 6, 7, 8 };
134 static const char *ppsz_band_text[] = { N_("Undefined"), N_("6 MHz"),
135 N_("7 MHz"), N_("8 MHz") };
137 #define GUARD_TEXT N_("Terrestrial guard interval")
138 #define GUARD_LONGTEXT N_("Guard interval [Undefined,1/4,1/8,1/16,1/32]")
139 static const int i_guard_list[] = { -1, 4, 8, 16, 32 };
140 static const char *ppsz_guard_text[] = { N_("Undefined"), N_("1/4"), N_("1/8"),
141 N_("1/16"), N_("1/32") };
143 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
144 #define TRANSMISSION_LONGTEXT N_("Transmission mode [Undefined,2k,8k]")
145 static const int i_transmission_list[] = { -1, 2, 8 };
146 static const char *ppsz_transmission_text[] = { N_("Undefined"), N_("2k"),
149 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
150 #define HIERARCHY_LONGTEXT N_("Hierarchy alpha value [Undefined,1,2,4]")
151 static const int i_hierarchy_list[] = { -1, 1, 2, 4 };
152 static const char *ppsz_hierarchy_text[] = { N_("Undefined"), N_("1"),
155 /* BDA module additional DVB-S Parameters */
156 #define AZIMUTH_TEXT N_("Satellite Azimuth")
157 #define AZIMUTH_LONGTEXT N_("Satellite Azimuth in tenths of degree")
158 #define ELEVATION_TEXT N_("Satellite Elevation")
159 #define ELEVATION_LONGTEXT N_("Satellite Elevation in tenths of degree")
160 #define LONGITUDE_TEXT N_("Satellite Longitude")
161 #define LONGITUDE_LONGTEXT N_( \
162 "Satellite Longitude in 10ths of degree, -ve=West")
163 #define POLARISATION_TEXT N_("Satellite Polarisation")
164 #define POLARISATION_LONGTEXT N_("Satellite Polarisation [H/V/L/R]")
165 static const char *ppsz_polar_list[] = { "H", "V", "L", "R" };
166 static const char *ppsz_polar_text[] = { N_("Horizontal"), N_("Vertical"),
167 N_("Circular Left"), N_("Circular Right") };
170 set_shortname( _("DVB") );
171 set_description( _("DirectShow DVB input") );
172 set_category( CAT_INPUT );
173 set_subcategory( SUBCAT_INPUT_ACCESS );
175 add_integer( "dvb-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
176 CACHING_LONGTEXT, VLC_TRUE );
177 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
179 # if defined(WIN32) || defined(WINCE)
181 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
183 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
185 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
186 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
190 /* DVB-S (satellite) */
191 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT,
192 INVERSION_LONGTEXT, VLC_TRUE );
193 change_integer_list( i_inversion_list, ppsz_inversion_text, 0 );
194 # if defined(WIN32) || defined(WINCE)
195 add_string( "dvb-polarisation", NULL, NULL, POLARISATION_TEXT,
196 POLARISATION_LONGTEXT, VLC_TRUE );
197 change_string_list( ppsz_polar_list, ppsz_polar_text, 0 );
198 add_integer( "dvb-network-id", 0, NULL, NETID_TEXT, NETID_LONGTEXT,
200 add_integer( "dvb-azimuth", 0, NULL, AZIMUTH_TEXT, AZIMUTH_LONGTEXT,
202 add_integer( "dvb-elevation", 0, NULL, ELEVATION_TEXT,
203 ELEVATION_LONGTEXT, VLC_TRUE );
204 add_integer( "dvb-longitude", 0, NULL, LONGITUDE_TEXT,
205 LONGITUDE_LONGTEXT, VLC_TRUE );
206 /* Note: Polaristion H = voltage 18; V = voltage 13; */
208 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
210 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
212 add_bool( "dvb-high-voltage", 0, NULL, HIGH_VOLTAGE_TEXT,
213 HIGH_VOLTAGE_LONGTEXT, VLC_TRUE );
214 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
217 add_integer( "dvb-lnb-lof1", 0, NULL, LNB_LOF1_TEXT,
218 LNB_LOF1_LONGTEXT, VLC_TRUE );
219 add_integer( "dvb-lnb-lof2", 0, NULL, LNB_LOF2_TEXT,
220 LNB_LOF2_LONGTEXT, VLC_TRUE );
221 add_integer( "dvb-lnb-slof", 0, NULL, LNB_SLOF_TEXT,
222 LNB_SLOF_LONGTEXT, VLC_TRUE );
224 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
225 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
229 add_integer( "dvb-modulation", -1, NULL, MODULATION_TEXT,
230 MODULATION_LONGTEXT, VLC_TRUE );
231 change_integer_list( i_qam_list, ppsz_qam_text, 0 );
233 /* DVB-T (terrestrial) */
234 add_integer( "dvb-code-rate-hp", -1, NULL, CODE_RATE_HP_TEXT,
235 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
236 change_integer_list( i_hp_fec_list, ppsz_hp_fec_text, 0 );
237 add_integer( "dvb-code-rate-lp", -1, NULL, CODE_RATE_LP_TEXT,
238 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
239 change_integer_list( i_lp_fec_list, ppsz_lp_fec_text, 0 );
240 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
242 change_integer_list( i_band_list, ppsz_band_text, 0 );
243 add_integer( "dvb-guard", -1, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
244 change_integer_list( i_guard_list, ppsz_guard_text, 0 );
245 add_integer( "dvb-transmission", -1, NULL, TRANSMISSION_TEXT,
246 TRANSMISSION_LONGTEXT, VLC_TRUE );
247 change_integer_list( i_transmission_list, ppsz_transmission_text, 0 );
248 add_integer( "dvb-hierarchy", -1, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
250 change_integer_list( i_hierarchy_list, ppsz_hierarchy_text, 0 );
252 set_capability( "access2", 0 );
253 add_shortcut( "dvb" ); /* Generic name */
255 add_shortcut( "dvb-s" ); /* Satellite */
256 add_shortcut( "dvbs" );
257 add_shortcut( "qpsk" );
258 add_shortcut( "satellite" );
260 add_shortcut( "dvb-c" ); /* Cable */
261 add_shortcut( "dvbc" );
262 add_shortcut( "qam" );
263 add_shortcut( "cable" );
265 add_shortcut( "dvbt" ); /* Terrestrial */
266 add_shortcut( "dvb-t" );
267 add_shortcut( "ofdm" );
268 add_shortcut( "terrestrial" );
270 add_shortcut( "atsc" ); /* Atsc */
271 add_shortcut( "usdigital" );
273 set_callbacks( Open, Close );
277 /*****************************************************************************
278 * Open: open direct show device as an access module
279 *****************************************************************************/
280 static int Open( vlc_object_t *p_this )
282 access_t *p_access = (access_t*)p_this;
284 const char* psz_module = "dvb";
285 const int i_param_count = 19;
286 const char* psz_param[] = { "frequency", "bandwidth",
287 "srate", "azimuth", "elevation", "longitude", "polarisation",
288 "modulation", "caching", "lnb-lof1", "lnb-lof2", "lnb-slof",
289 "inversion", "network-id", "code-rate-hp", "code-rate-lp",
290 "guard", "transmission", "hierarchy" };
292 const int i_type[] = { VLC_VAR_INTEGER, VLC_VAR_INTEGER,
293 VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
294 VLC_VAR_STRING, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
295 VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
296 VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
299 char psz_full_name[128];
302 /* Only if selected */
303 if( *p_access->psz_access == '\0' )
307 p_access->pf_read = NULL;
308 p_access->pf_block = Block; /* Function to read compressed data */
309 p_access->pf_control = Control; /* Function to control the module */
310 p_access->pf_seek = NULL;
311 p_access->info.i_update = 0;
312 p_access->info.i_size = 0;
313 p_access->info.i_pos = 0;
314 p_access->info.b_eof = VLC_FALSE;
315 p_access->info.i_title = 0;
316 p_access->info.i_seekpoint = 0;
317 p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
321 memset( p_sys, 0, sizeof( access_sys_t ) );
323 for( int i = 0; i < i_param_count; i++ )
325 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
327 var_Create( p_access, psz_full_name, i_type[i] | VLC_VAR_DOINHERIT );
330 /* Parse the command line */
331 if( ParsePath( p_access, psz_module, i_param_count, psz_param, i_type ) )
337 /* Build directshow graph */
338 dvb_newBDAGraph( p_access );
340 i_ret = VLC_EGENERIC;
342 if( strncmp( p_access->psz_access, "qpsk", 4 ) == 0 ||
343 strncmp( p_access->psz_access, "dvb-s", 5 ) == 0 ||
344 strncmp( p_access->psz_access, "dvbs", 4 ) == 0 ||
345 strncmp( p_access->psz_access, "satellite", 9 ) == 0 )
347 i_ret = dvb_SubmitDVBSTuneRequest( p_access );
349 if( strncmp( p_access->psz_access, "cable", 5 ) == 0 ||
350 strncmp( p_access->psz_access, "dvb-c", 5 ) == 0 ||
351 strncmp( p_access->psz_access, "dvbc", 4 ) == 0 ||
352 strncmp( p_access->psz_access, "qam", 3 ) == 0 )
354 i_ret = dvb_SubmitDVBCTuneRequest( p_access );
356 if( strncmp( p_access->psz_access, "terrestrial", 11 ) == 0 ||
357 strncmp( p_access->psz_access, "dvb-t", 5 ) == 0 ||
358 strncmp( p_access->psz_access, "ofdm", 4 ) == 0 ||
359 strncmp( p_access->psz_access, "dvbt", 4 ) == 0 )
361 i_ret = dvb_SubmitDVBTTuneRequest( p_access );
363 if( strncmp( p_access->psz_access, "usdigital", 9 ) == 0 ||
364 strncmp( p_access->psz_access, "atsc", 4 ) == 0 )
366 i_ret = dvb_SubmitATSCTuneRequest( p_access );
369 if( i_ret != VLC_SUCCESS )
370 msg_Warn( p_access, "DVB_Open: Unsupported Network %s",
371 p_access->psz_access);
375 /*****************************************************************************
377 * Parses the path passed to VLC treating it as a MRL which
378 * is organized as a sequence of <key>=<value> pairs separated by a colon
379 * e.g. :key1=value1:key2=value2:key3=value3.
380 * Each <key> is matched to one of the parameters passed in psz_param using
381 * whatever characters are provided. e.g. fr = fre = frequency
382 *****************************************************************************/
383 static int ParsePath( access_t *p_access, const char* psz_module,
384 const int i_param_count, const char** psz_param, const int* i_type )
386 const int MAXPARAM = 20;
387 BOOL b_used[MAXPARAM];
392 int i_token_len, i_param_len, i_this_param;
393 char psz_full_name[128];
395 if( i_param_count > MAXPARAM )
397 msg_Warn( p_access, "ParsePath: Too many parameters: %d > %d",
398 i_param_count, MAXPARAM );
401 for( int i = 0; i < i_param_count; i++ )
403 psz_parser = p_access->psz_path;
404 if( strlen( psz_parser ) <= 0 )
407 i_token_len = strcspn( psz_parser, ":" );
408 if( i_token_len <= 0 )
409 i_token_len = strcspn( ++psz_parser, ":" );
413 psz_token = strndup( psz_parser, i_token_len );
414 i_param_len = strcspn( psz_token, "=" );
415 if( i_param_len <= 0 )
417 msg_Warn( p_access, "ParsePath: Unspecified parameter %s",
424 for( int i = 0; i < i_param_count; i++ )
426 if( strncmp( psz_token, psz_param[i], i_param_len ) == 0 )
432 if( i_this_param < 0 )
434 msg_Warn( p_access, "ParsePath: Unknown parameter %s", psz_token );
439 if( b_used[i_this_param] )
441 msg_Warn( p_access, "ParsePath: Duplicate parameter %s",
447 b_used[i_this_param] = TRUE;
449 /* if "=" was found in token then value starts at
450 * psz_token + i_paramlen + 1
451 * else there is no value specified so we use an empty string */
452 psz_value = psz_token + i_param_len + 1;
453 if( i_param_len >= i_token_len )
455 if( i_type[i_this_param] == VLC_VAR_STRING )
456 v_value.psz_string = strdup( psz_value );
457 if( i_type[i_this_param] == VLC_VAR_INTEGER )
458 v_value.i_int = atol( psz_value );
459 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
460 psz_param[i_this_param] );
461 var_Set( p_access, psz_full_name, v_value );
465 if( i_token_len >= strlen( psz_parser ) )
467 psz_parser += i_token_len + 1;
468 i_token_len = strcspn( psz_parser, ":" );
474 /*****************************************************************************
475 * AccessClose: close device
476 *****************************************************************************/
477 static void Close( vlc_object_t *p_this )
479 access_t *p_access = (access_t *)p_this;
480 access_sys_t *p_sys = p_access->p_sys;
482 dvb_deleteBDAGraph( p_access );
484 vlc_mutex_destroy( &p_sys->lock );
485 vlc_cond_destroy( &p_sys->wait );
490 /*****************************************************************************
492 *****************************************************************************/
493 static int Control( access_t *p_access, int i_query, va_list args )
495 vlc_bool_t *pb_bool, b_bool;
501 case ACCESS_CAN_SEEK: /* 0 */
502 case ACCESS_CAN_FASTSEEK: /* 1 */
503 case ACCESS_CAN_PAUSE: /* 2 */
504 case ACCESS_CAN_CONTROL_PACE: /* 3 */
505 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
506 *pb_bool = VLC_FALSE;
508 case ACCESS_GET_MTU: /* 4 */
509 pi_int = (int*)va_arg( args, int * );
512 case ACCESS_GET_PTS_DELAY: /* 5 */
513 pi_64 = (int64_t*)va_arg( args, int64_t * );
514 *pi_64 = var_GetInteger( p_access, "dvb-caching" ) * 1000;
517 case ACCESS_GET_TITLE_INFO: /* 6 */
518 case ACCESS_GET_META: /* 7 */
519 case ACCESS_SET_PAUSE_STATE: /* 8 */
520 case ACCESS_SET_TITLE: /* 9 */
521 case ACCESS_SET_SEEKPOINT: /* 10 */
524 case ACCESS_SET_PRIVATE_ID_STATE: /* 11 */
525 i_int = (int)va_arg( args, int );
526 b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t );
528 case ACCESS_SET_PRIVATE_ID_CA: /* 12 -From Demux */
532 "DVB_Control: Unimplemented query in control %d", i_query );
539 /*****************************************************************************
541 *****************************************************************************/
542 static block_t *Block( access_t *p_access )
547 if( p_access->b_die )
550 l_buffer_len = dvb_GetBufferSize( p_access );
551 if( l_buffer_len < 0 )
553 p_access->info.b_eof = VLC_TRUE;
557 p_block = block_New( p_access, l_buffer_len );
558 if( dvb_ReadBuffer( p_access, &l_buffer_len, p_block->p_buffer ) < 0 )
560 p_access->info.b_eof = VLC_TRUE;