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]")
61 #define PROBE_TEXT N_("Probe DVB card for capabilities")
62 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their " \
63 "capabilities, you can disable this feature if you experience some " \
66 #define BUDGET_TEXT N_("Budget mode")
67 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder " \
68 "with a \"budget\" card.")
71 #define SATNO_TEXT N_("Satellite number in the Diseqc system")
72 #define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=satellite number].")
74 #define VOLTAGE_TEXT N_("LNB voltage")
75 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal].")
77 #define HIGH_VOLTAGE_TEXT N_("High LNB voltage")
78 #define HIGH_VOLTAGE_LONGTEXT N_("Enable high voltage if your cables are " \
79 "particularly long. This is not supported by all frontends.")
81 #define TONE_TEXT N_("22 kHz tone")
82 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto].")
84 #define FEC_TEXT N_("Transponder FEC")
85 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto].")
87 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
88 #define SRATE_LONGTEXT ""
90 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
91 #define LNB_LOF1_LONGTEXT N_("Low Band Local Osc Freq in kHz usually 9.75GHz")
93 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
94 #define LNB_LOF2_LONGTEXT N_("High Band Local Osc Freq in kHz usually 10.6GHz")
96 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
97 #define LNB_SLOF_LONGTEXT N_( \
98 "Low Noise Block switch freq in kHz usually 11.7GHz")
101 #define MODULATION_TEXT N_("Modulation type")
102 #define MODULATION_LONGTEXT N_("QAM constellation points " \
103 "[16, 32, 64, 128, 256]")
104 static const int i_qam_list[] = { -1, 16, 32, 64, 128, 256 };
105 static const char *ppsz_qam_text[] = { N_("Undefined"), N_("16"), N_("32"),
106 N_("64"), N_("128"), N_("256") };
109 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
110 #define CODE_RATE_HP_LONGTEXT ""
112 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
113 #define CODE_RATE_LP_LONGTEXT ""
115 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
116 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
117 static const int i_band_list[] = { -1, 6, 7, 8 };
118 static const char *ppsz_band_text[] = { N_("Undefined"), N_("6"), N_("7"),
121 #define GUARD_TEXT N_("Terrestrial guard interval")
122 #define GUARD_LONGTEXT ""
124 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
125 #define TRANSMISSION_LONGTEXT ""
127 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
128 #define HIERARCHY_LONGTEXT ""
130 /* BDA module additional DVB-S Parameters */
131 #define AZIMUTH_TEXT N_("Satellite Azimuth")
132 #define AZIMUTH_LONGTEXT N_("Satellite Azimuth in tenths of degree")
133 #define ELEVATION_TEXT N_("Satellite Elevation")
134 #define ELEVATION_LONGTEXT N_("Satellite Elevation in tenths of degree")
135 #define LONGITUDE_TEXT N_("Satellite Longitude")
136 #define LONGITUDE_LONGTEXT N_( \
137 "Satellite Longitude in 10ths of degree, -ve=West")
138 #define POLARISATION_TEXT N_("Satellite Polarisation")
139 #define POLARISATION_LONGTEXT N_("Satellite Polarisation [H/V/L/R]")
140 static const char *ppsz_polar_list[] = { "H", "V", "L", "R" };
141 static const char *ppsz_polar_text[] = { N_("Horizontal"), N_("Vertical"),
142 N_("Circular Left"), N_("Circular Right") };
145 set_shortname( _("DVB") );
146 set_description( _("DirectShow DVB input") );
147 set_category( CAT_INPUT );
148 set_subcategory( SUBCAT_INPUT_ACCESS );
150 add_integer( "dvb-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
151 CACHING_LONGTEXT, VLC_TRUE );
152 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
154 # if defined(WIN32) || defined(WINCE)
156 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
158 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
160 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT,
161 INVERSION_LONGTEXT, VLC_TRUE );
162 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
163 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
167 /* DVB-S (satellite) */
168 # if defined(WIN32) || defined(WINCE)
169 add_integer( "dvb-azimuth", 0, NULL, AZIMUTH_TEXT, AZIMUTH_LONGTEXT,
171 add_integer( "dvb-elevation", 0, NULL, ELEVATION_TEXT,
172 ELEVATION_LONGTEXT, VLC_TRUE );
173 add_integer( "dvb-longitude", 0, NULL, LONGITUDE_TEXT,
174 LONGITUDE_LONGTEXT, VLC_TRUE );
175 add_string( "dvb-polarisation", NULL, NULL, POLARISATION_TEXT,
176 POLARISATION_LONGTEXT, VLC_TRUE );
177 change_string_list( ppsz_polar_list, ppsz_polar_text, 0 );
178 /* Note: Polaristion H = voltage 18; V = voltage 13; */
180 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
182 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
184 add_bool( "dvb-high-voltage", 0, NULL, HIGH_VOLTAGE_TEXT,
185 HIGH_VOLTAGE_LONGTEXT, VLC_TRUE );
186 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
189 add_integer( "dvb-lnb-lof1", 0, NULL, LNB_LOF1_TEXT,
190 LNB_LOF1_LONGTEXT, VLC_TRUE );
191 add_integer( "dvb-lnb-lof2", 0, NULL, LNB_LOF2_TEXT,
192 LNB_LOF2_LONGTEXT, VLC_TRUE );
193 add_integer( "dvb-lnb-slof", 0, NULL, LNB_SLOF_TEXT,
194 LNB_SLOF_LONGTEXT, VLC_TRUE );
196 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
197 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
201 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT,
202 MODULATION_LONGTEXT, VLC_TRUE );
203 change_integer_list( i_qam_list, ppsz_qam_text, 0 );
205 /* DVB-T (terrestrial) */
206 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
207 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
208 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
209 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
210 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
212 change_integer_list( i_band_list, ppsz_band_text, 0 );
213 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
214 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
215 TRANSMISSION_LONGTEXT, VLC_TRUE );
216 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
219 set_capability( "access2", 0 );
220 add_shortcut( "dvb" ); /* Generic name */
222 add_shortcut( "dvb-s" ); /* Satellite */
223 add_shortcut( "qpsk" );
224 add_shortcut( "satellite" );
226 add_shortcut( "dvb-c" ); /* Cable */
227 add_shortcut( "cable" );
229 add_shortcut( "dvb-t" ); /* Terrestrial */
230 add_shortcut( "terrestrial" );
232 add_shortcut( "atsc" ); /* Atsc */
233 add_shortcut( "usdigital" );
235 set_callbacks( Open, Close );
239 /*****************************************************************************
240 * Open: open direct show device as an access module
241 *****************************************************************************/
242 static int Open( vlc_object_t *p_this )
244 access_t *p_access = (access_t*)p_this;
246 const char* psz_module = "dvb";
247 const int i_param_count = 12;
248 const char* psz_param[] = { "frequency", "bandwidth",
249 "srate", "azimuth", "elevation", "longitude", "polarisation",
250 "modulation", "caching", "lnb-lof1", "lnb-lof2", "lnb-slof" };
252 const int i_type[] = { VLC_VAR_INTEGER, VLC_VAR_INTEGER,
253 VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
254 VLC_VAR_STRING, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
255 VLC_VAR_INTEGER, VLC_VAR_INTEGER };
257 char psz_full_name[128];
260 /* Only if selected */
261 if( *p_access->psz_access == '\0' )
265 p_access->pf_read = NULL;
266 p_access->pf_block = Block; /* Function to read compressed data */
267 p_access->pf_control = Control; /* Function to control the module */
268 p_access->pf_seek = NULL;
269 p_access->info.i_update = 0;
270 p_access->info.i_size = 0;
271 p_access->info.i_pos = 0;
272 p_access->info.b_eof = VLC_FALSE;
273 p_access->info.i_title = 0;
274 p_access->info.i_seekpoint = 0;
275 p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
279 memset( p_sys, 0, sizeof( access_sys_t ) );
281 for( int i = 0; i < i_param_count; i++ )
283 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
285 var_Create( p_access, psz_full_name, i_type[i] | VLC_VAR_DOINHERIT );
288 /* Parse the command line */
289 if( ParsePath( p_access, psz_module, i_param_count, psz_param, i_type ) )
295 /* Build directshow graph */
296 dvb_newBDAGraph( p_access );
298 i_ret = VLC_EGENERIC;
300 if( strncmp( p_access->psz_access, "qpsk", 4 ) == 0 ||
301 strncmp( p_access->psz_access, "dvb-s", 5 ) == 0 ||
302 strncmp( p_access->psz_access, "satellite", 9 ) == 0 )
304 i_ret = dvb_SubmitDVBSTuneRequest( p_access );
306 if( strncmp( p_access->psz_access, "cable", 5 ) == 0 ||
307 strncmp( p_access->psz_access, "dvb-c", 5 ) == 0 )
309 i_ret = dvb_SubmitDVBCTuneRequest( p_access );
311 if( strncmp( p_access->psz_access, "terrestrial", 11 ) == 0 ||
312 strncmp( p_access->psz_access, "dvb-t", 5 ) == 0 )
314 i_ret = dvb_SubmitDVBTTuneRequest( p_access );
316 if( strncmp( p_access->psz_access, "usdigital", 9 ) == 0 ||
317 strncmp( p_access->psz_access, "atsc", 4 ) == 0 )
319 i_ret = dvb_SubmitATSCTuneRequest( p_access );
322 if( i_ret != VLC_SUCCESS )
323 msg_Warn( p_access, "DVB_Open: Unsupported Network %s",
324 p_access->psz_access);
328 /*****************************************************************************
330 * Parses the path passed to VLC treating it as a MRL which
331 * is organized as a sequence of <key>=<value> pairs separated by a colon
332 * e.g. :key1=value1:key2=value2:key3=value3.
333 * Each <key> is matched to one of the parameters passed in psz_param using
334 * whatever characters are provided. e.g. fr = fre = frequency
335 *****************************************************************************/
336 static int ParsePath( access_t *p_access, const char* psz_module,
337 const int i_param_count, const char** psz_param, const int* i_type )
339 const int MAXPARAM = 20;
340 BOOL b_used[MAXPARAM];
345 int i_token_len, i_param_len, i_this_param;
346 char psz_full_name[128];
348 if( i_param_count > MAXPARAM )
350 msg_Warn( p_access, "ParsePath: Too many parameters: %d > %d",
351 i_param_count, MAXPARAM );
354 for( int i = 0; i < i_param_count; i++ )
356 psz_parser = p_access->psz_path;
357 if( strlen( psz_parser ) <= 0 )
360 i_token_len = strcspn( psz_parser, ":" );
361 if( i_token_len <= 0 )
362 i_token_len = strcspn( ++psz_parser, ":" );
366 psz_token = strndup( psz_parser, i_token_len );
367 i_param_len = strcspn( psz_token, "=" );
368 if( i_param_len <= 0 )
370 msg_Warn( p_access, "ParsePath: Unspecified parameter %s",
377 for( int i = 0; i < i_param_count; i++ )
379 if( strncmp( psz_token, psz_param[i], i_param_len ) == 0 )
385 if( i_this_param < 0 )
387 msg_Warn( p_access, "ParsePath: Unknown parameter %s", psz_token );
392 if( b_used[i_this_param] )
394 msg_Warn( p_access, "ParsePath: Duplicate parameter %s",
400 b_used[i_this_param] = TRUE;
402 /* if "=" was found in token then value starts at
403 * psz_token + i_paramlen + 1
404 * else there is no value specified so we use an empty string */
405 psz_value = psz_token + i_param_len + 1;
406 if( i_param_len >= i_token_len )
408 if( i_type[i_this_param] == VLC_VAR_STRING )
409 v_value.psz_string = strdup( psz_value );
410 if( i_type[i_this_param] == VLC_VAR_INTEGER )
411 v_value.i_int = atol( psz_value );
412 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
413 psz_param[i_this_param] );
414 var_Set( p_access, psz_full_name, v_value );
418 if( i_token_len >= strlen( psz_parser ) )
420 psz_parser += i_token_len + 1;
421 i_token_len = strcspn( psz_parser, ":" );
427 /*****************************************************************************
428 * AccessClose: close device
429 *****************************************************************************/
430 static void Close( vlc_object_t *p_this )
432 access_t *p_access = (access_t *)p_this;
433 access_sys_t *p_sys = p_access->p_sys;
435 dvb_deleteBDAGraph( p_access );
437 vlc_mutex_destroy( &p_sys->lock );
438 vlc_cond_destroy( &p_sys->wait );
443 /*****************************************************************************
445 *****************************************************************************/
446 static int Control( access_t *p_access, int i_query, va_list args )
448 vlc_bool_t *pb_bool, b_bool;
454 case ACCESS_CAN_SEEK: /* 0 */
455 case ACCESS_CAN_FASTSEEK: /* 1 */
456 case ACCESS_CAN_PAUSE: /* 2 */
457 case ACCESS_CAN_CONTROL_PACE: /* 3 */
458 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
459 *pb_bool = VLC_FALSE;
461 case ACCESS_GET_MTU: /* 4 */
462 pi_int = (int*)va_arg( args, int * );
465 case ACCESS_GET_PTS_DELAY: /* 5 */
466 pi_64 = (int64_t*)va_arg( args, int64_t * );
467 *pi_64 = var_GetInteger( p_access, "dvb-caching" ) * 1000;
470 case ACCESS_GET_TITLE_INFO: /* 6 */
471 case ACCESS_GET_META: /* 7 */
472 case ACCESS_SET_PAUSE_STATE: /* 8 */
473 case ACCESS_SET_TITLE: /* 9 */
474 case ACCESS_SET_SEEKPOINT: /* 10 */
477 case ACCESS_SET_PRIVATE_ID_STATE: /* 11 */
478 i_int = (int)va_arg( args, int );
479 b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t );
481 case ACCESS_SET_PRIVATE_ID_CA: /* 12 -From Demux */
485 "DVB_Control: Unimplemented query in control %d", i_query );
492 /*****************************************************************************
494 *****************************************************************************/
495 static block_t *Block( access_t *p_access )
500 if( p_access->b_die )
503 l_buffer_len = dvb_GetBufferSize( p_access );
504 if( l_buffer_len < 0 )
506 p_access->info.b_eof = VLC_TRUE;
510 p_block = block_New( p_access, l_buffer_len );
511 if( dvb_ReadBuffer( p_access, &l_buffer_len, p_block->p_buffer ) < 0 )
513 p_access->info.b_eof = VLC_TRUE;