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 *****************************************************************************/
31 #include <vlc_input.h>
32 #include <vlc_access.h>
36 /*****************************************************************************
37 * Access: local prototypes
38 *****************************************************************************/
39 static int Open( vlc_object_t *p_this );
40 static int ParsePath( access_t *p_access, const char* psz_module,
41 const int i_param_count, const char** psz_param, const int* i_type );
42 static void Close( vlc_object_t *p_this );
43 static block_t *Block( access_t * );
44 static int Control( access_t *, int, va_list );
47 #define CACHING_TEXT N_("Caching value in ms")
48 #define CACHING_LONGTEXT N_( \
49 "Caching value for DVB streams. This " \
50 "value should be set in milliseconds." )
52 #define ADAPTER_TEXT N_("Adapter card to tune")
53 #define ADAPTER_LONGTEXT N_("Adapter cards have a device file in directory " \
54 "named /dev/dvb/adapter[n] with n>=0.")
56 #define DEVICE_TEXT N_("Device number to use on adapter")
57 #define DEVICE_LONGTEXT ""
59 #define FREQ_TEXT N_("Transponder/multiplex frequency")
60 #define FREQ_LONGTEXT N_("In kHz for DVB-S or Hz for DVB-C/T")
62 #define INVERSION_TEXT N_("Inversion mode")
63 #define INVERSION_LONGTEXT N_("Inversion mode [0=off, 1=on, 2=auto]")
65 #define PROBE_TEXT N_("Probe DVB card for capabilities")
66 #define PROBE_LONGTEXT N_("Some DVB cards do not like to be probed for their " \
67 "capabilities, you can disable this feature if you experience some " \
70 #define BUDGET_TEXT N_("Budget mode")
71 #define BUDGET_LONGTEXT N_("This allows you to stream an entire transponder " \
72 "with a \"budget\" card.")
75 #define SATNO_TEXT N_("Satellite number in the Diseqc system")
76 #define SATNO_LONGTEXT N_("[0=no diseqc, 1-4=satellite number].")
78 #define VOLTAGE_TEXT N_("LNB voltage")
79 #define VOLTAGE_LONGTEXT N_("In Volts [0, 13=vertical, 18=horizontal].")
81 #define HIGH_VOLTAGE_TEXT N_("High LNB voltage")
82 #define HIGH_VOLTAGE_LONGTEXT N_("Enable high voltage if your cables are " \
83 "particularly long. This is not supported by all frontends.")
85 #define TONE_TEXT N_("22 kHz tone")
86 #define TONE_LONGTEXT N_("[0=off, 1=on, -1=auto].")
88 #define FEC_TEXT N_("Transponder FEC")
89 #define FEC_LONGTEXT N_("FEC=Forward Error Correction mode [9=auto].")
91 #define SRATE_TEXT N_("Transponder symbol rate in kHz")
92 #define SRATE_LONGTEXT ""
94 #define LNB_LOF1_TEXT N_("Antenna lnb_lof1 (kHz)")
95 #define LNB_LOF1_LONGTEXT ""
97 #define LNB_LOF2_TEXT N_("Antenna lnb_lof2 (kHz)")
98 #define LNB_LOF2_LONGTEXT ""
100 #define LNB_SLOF_TEXT N_("Antenna lnb_slof (kHz)")
101 #define LNB_SLOF_LONGTEXT ""
104 #define MODULATION_TEXT N_("Modulation type")
105 #define MODULATION_LONGTEXT N_("QAM constellation points " \
106 "[16, 32, 64, 128, 256]")
107 static const int i_qam_list[] = { -1, 16, 32, 64, 128, 256 };
108 static const char *ppsz_qam_text[] = { N_("Undefined"), N_("16"), N_("32"),
109 N_("64"), N_("128"), N_("256") };
112 #define CODE_RATE_HP_TEXT N_("Terrestrial high priority stream code rate (FEC)")
113 #define CODE_RATE_HP_LONGTEXT ""
115 #define CODE_RATE_LP_TEXT N_("Terrestrial low priority stream code rate (FEC)")
116 #define CODE_RATE_LP_LONGTEXT ""
118 #define BANDWIDTH_TEXT N_("Terrestrial bandwidth")
119 #define BANDWIDTH_LONGTEXT N_("Terrestrial bandwidth [0=auto,6,7,8 in MHz]")
120 static const int i_band_list[] = { -1, 6, 7, 8 };
121 static const char *ppsz_band_text[] = { N_("Undefined"), N_("6"), N_("7"),
124 #define GUARD_TEXT N_("Terrestrial guard interval")
125 #define GUARD_LONGTEXT ""
127 #define TRANSMISSION_TEXT N_("Terrestrial transmission mode")
128 #define TRANSMISSION_LONGTEXT ""
130 #define HIERARCHY_TEXT N_("Terrestrial hierarchy mode")
131 #define HIERARCHY_LONGTEXT ""
133 /* BDA module additional DVB-S Parameters */
134 #define AZIMUTH_TEXT N_("Satellite Azimuth")
135 #define AZIMUTH_LONGTEXT N_("Satellite Azimuth in tenths of degree")
136 #define ELEVATION_TEXT N_("Satellite Elevation")
137 #define ELEVATION_LONGTEXT N_("Satellite Elevation in tenths of degree")
138 #define LONGITUDE_TEXT N_("Satellite Longitude")
139 #define LONGITUDE_LONGTEXT N_( \
140 "Satellite Longitude in 10ths of degree, -ve=West")
141 #define POLARISATION_TEXT N_("Satellite Polarisation")
142 #define POLARISATION_LONGTEXT N_("Satellite Polarisation [H/V/L/R]")
143 static const char *ppsz_polar_list[] = { "H", "V", "L", "R" };
144 static const char *ppsz_polar_text[] = { N_("Horizontal"), N_("Vertical"),
145 N_("Circular Left"), N_("Circular Right") };
148 set_shortname( _("DVB") );
149 set_description( _("DirectShow DVB input") );
150 set_category( CAT_INPUT );
151 set_subcategory( SUBCAT_INPUT_ACCESS );
153 add_integer( "dvb-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
154 CACHING_LONGTEXT, VLC_TRUE );
155 add_integer( "dvb-frequency", 11954000, NULL, FREQ_TEXT, FREQ_LONGTEXT,
157 # if defined(WIN32) || defined(WINCE)
159 add_integer( "dvb-adapter", 0, NULL, ADAPTER_TEXT, ADAPTER_LONGTEXT,
161 add_integer( "dvb-device", 0, NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
163 add_integer( "dvb-inversion", 2, NULL, INVERSION_TEXT,
164 INVERSION_LONGTEXT, VLC_TRUE );
165 add_bool( "dvb-probe", 1, NULL, PROBE_TEXT, PROBE_LONGTEXT, VLC_TRUE );
166 add_bool( "dvb-budget-mode", 0, NULL, BUDGET_TEXT, BUDGET_LONGTEXT,
170 /* DVB-S (satellite) */
171 # if defined(WIN32) || defined(WINCE)
172 add_integer( "dvb-azimuth", 0, NULL, AZIMUTH_TEXT, AZIMUTH_LONGTEXT,
174 add_integer( "dvb-elevation", 0, NULL, ELEVATION_TEXT,
175 ELEVATION_LONGTEXT, VLC_FALSE );
176 add_integer( "dvb-longitude", 0, NULL, LONGITUDE_TEXT,
177 LONGITUDE_LONGTEXT, VLC_FALSE );
178 add_string( "dvb-polarisation", NULL, NULL, POLARISATION_TEXT,
179 POLARISATION_LONGTEXT, VLC_FALSE );
180 change_string_list( ppsz_polar_list, ppsz_polar_text, 0 );
181 /* Note: Polaristion H = voltage 18; V = voltage 13; */
183 add_integer( "dvb-satno", 0, NULL, SATNO_TEXT, SATNO_LONGTEXT,
185 add_integer( "dvb-voltage", 13, NULL, VOLTAGE_TEXT, VOLTAGE_LONGTEXT,
187 add_bool( "dvb-high-voltage", 0, NULL, HIGH_VOLTAGE_TEXT,
188 HIGH_VOLTAGE_LONGTEXT, VLC_TRUE );
189 add_integer( "dvb-tone", -1, NULL, TONE_TEXT, TONE_LONGTEXT,
191 add_integer( "dvb-lnb-lof1", 0, NULL, LNB_LOF1_TEXT,
192 LNB_LOF1_LONGTEXT, VLC_TRUE );
193 add_integer( "dvb-lnb-lof2", 0, NULL, LNB_LOF2_TEXT,
194 LNB_LOF2_LONGTEXT, VLC_TRUE );
195 add_integer( "dvb-lnb-slof", 0, NULL, LNB_SLOF_TEXT,
196 LNB_SLOF_LONGTEXT, VLC_TRUE );
198 add_integer( "dvb-fec", 9, NULL, FEC_TEXT, FEC_LONGTEXT, VLC_TRUE );
199 add_integer( "dvb-srate", 27500000, NULL, SRATE_TEXT, SRATE_LONGTEXT,
203 add_integer( "dvb-modulation", 0, NULL, MODULATION_TEXT,
204 MODULATION_LONGTEXT, VLC_TRUE );
205 change_integer_list( i_qam_list, ppsz_qam_text, 0 );
207 /* DVB-T (terrestrial) */
208 add_integer( "dvb-code-rate-hp", 9, NULL, CODE_RATE_HP_TEXT,
209 CODE_RATE_HP_LONGTEXT, VLC_TRUE );
210 add_integer( "dvb-code-rate-lp", 9, NULL, CODE_RATE_LP_TEXT,
211 CODE_RATE_LP_LONGTEXT, VLC_TRUE );
212 add_integer( "dvb-bandwidth", 0, NULL, BANDWIDTH_TEXT, BANDWIDTH_LONGTEXT,
214 change_integer_list( i_band_list, ppsz_band_text, 0 );
215 add_integer( "dvb-guard", 0, NULL, GUARD_TEXT, GUARD_LONGTEXT, VLC_TRUE );
216 add_integer( "dvb-transmission", 0, NULL, TRANSMISSION_TEXT,
217 TRANSMISSION_LONGTEXT, VLC_TRUE );
218 add_integer( "dvb-hierarchy", 0, NULL, HIERARCHY_TEXT, HIERARCHY_LONGTEXT,
221 set_capability( "access2", 0 );
222 add_shortcut( "dvb" ); /* Generic name */
224 add_shortcut( "dvb-s" ); /* Satellite */
225 add_shortcut( "qpsk" );
226 add_shortcut( "satellite" );
228 add_shortcut( "dvb-c" ); /* Cable */
229 add_shortcut( "cable" );
231 add_shortcut( "dvb-t" ); /* Terrestrial */
232 add_shortcut( "terrestrial" );
234 add_shortcut( "atsc" ); /* Atsc */
235 add_shortcut( "usdigital" );
237 set_callbacks( Open, Close );
241 /*****************************************************************************
242 * Open: open direct show device as an access module
243 *****************************************************************************/
244 static int Open( vlc_object_t *p_this )
246 access_t *p_access = (access_t*)p_this;
248 const char* psz_module = "dvb";
249 const int i_param_count = 8;
250 const char* psz_param[] = { "frequency", "bandwidth",
251 "srate", "azimuth", "elevation", "longitude", "polarisation",
254 const int i_type[] = { VLC_VAR_INTEGER, VLC_VAR_INTEGER,
255 VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER, VLC_VAR_INTEGER,
256 VLC_VAR_STRING, VLC_VAR_INTEGER };
258 char psz_full_name[128];
261 /* Only if selected */
262 if( *p_access->psz_access == '\0' )
266 p_access->pf_read = NULL;
267 p_access->pf_block = Block; /* Function to read compressed data */
268 p_access->pf_control = Control; /* Function to control the module */
269 p_access->pf_seek = NULL;
270 p_access->info.i_update = 0;
271 p_access->info.i_size = 0;
272 p_access->info.i_pos = 0;
273 p_access->info.b_eof = VLC_FALSE;
274 p_access->info.i_title = 0;
275 p_access->info.i_seekpoint = 0;
276 p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
280 memset( p_sys, 0, sizeof( access_sys_t ) );
282 for( int i = 0; i < i_param_count; i++ )
284 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
286 var_Create( p_access, psz_full_name, i_type[i] | VLC_VAR_DOINHERIT );
289 /* Parse the command line */
290 if( ParsePath( p_access, psz_module, i_param_count, psz_param, i_type ) )
296 /* Build directshow graph */
297 dvb_newBDAGraph( p_access );
299 i_ret = VLC_EGENERIC;
301 if( strncmp( p_access->psz_access, "qpsk", 4 ) == 0 ||
302 strncmp( p_access->psz_access, "dvb-s", 5 ) == 0 ||
303 strncmp( p_access->psz_access, "satellite", 9 ) == 0 )
305 i_ret = dvb_SubmitDVBSTuneRequest( p_access );
307 if( strncmp( p_access->psz_access, "cable", 5 ) == 0 ||
308 strncmp( p_access->psz_access, "dvb-c", 5 ) == 0 )
310 i_ret = dvb_SubmitDVBCTuneRequest( p_access );
312 if( strncmp( p_access->psz_access, "terrestrial", 11 ) == 0 ||
313 strncmp( p_access->psz_access, "dvb-t", 5 ) == 0 )
315 i_ret = dvb_SubmitDVBTTuneRequest( p_access );
317 if( strncmp( p_access->psz_access, "usdigital", 9 ) == 0 ||
318 strncmp( p_access->psz_access, "atsc", 4 ) == 0 )
320 i_ret = dvb_SubmitATSCTuneRequest( p_access );
323 if( i_ret != VLC_SUCCESS )
324 msg_Warn( p_access, "DVB_Open: Unsupported Network %s",
325 p_access->psz_access);
329 /*****************************************************************************
331 * Parses the path passed to VLC treating it as a MRL which
332 * is organized as a sequence of <key>=<value> pairs separated by a colon
333 * e.g. :key1=value1:key2=value2:key3=value3.
334 * Each <key> is matched to one of the parameters passed in psz_param using
335 * whatever characters are provided. e.g. fr = fre = frequency
336 *****************************************************************************/
337 static int ParsePath( access_t *p_access, const char* psz_module,
338 const int i_param_count, const char** psz_param, const int* i_type )
340 const int MAXPARAM = 20;
341 BOOL b_used[MAXPARAM];
346 int i_token_len, i_param_len, i_this_param;
347 char psz_full_name[128];
349 if( i_param_count > MAXPARAM )
351 msg_Warn( p_access, "ParsePath: Too many parameters: %d > %d",
352 i_param_count, MAXPARAM );
355 for( int i = 0; i < i_param_count; i++ )
357 psz_parser = p_access->psz_path;
358 if( strlen( psz_parser ) <= 0 )
361 i_token_len = strcspn( psz_parser, ":" );
362 if( i_token_len <= 0 )
363 i_token_len = strcspn( ++psz_parser, ":" );
367 psz_token = strndup( psz_parser, i_token_len );
368 i_param_len = strcspn( psz_token, "=" );
369 if( i_param_len <= 0 )
371 msg_Warn( p_access, "ParsePath: Unspecified parameter %s",
378 for( int i = 0; i < i_param_count; i++ )
380 if( strncmp( psz_token, psz_param[i], i_param_len ) == 0 )
386 if( i_this_param < 0 )
388 msg_Warn( p_access, "ParsePath: Unknown parameter %s", psz_token );
393 if( b_used[i_this_param] )
395 msg_Warn( p_access, "ParsePath: Duplicate parameter %s",
401 b_used[i_this_param] = TRUE;
403 /* if "=" was found in token then value starts at
404 * psz_token + i_paramlen + 1
405 * else there is no value specified so we use an empty string */
406 psz_value = psz_token + i_param_len + 1;
407 if( i_param_len >= i_token_len )
409 if( i_type[i_this_param] == VLC_VAR_STRING )
410 v_value.psz_string = strdup( psz_value );
411 if( i_type[i_this_param] == VLC_VAR_INTEGER )
412 v_value.i_int = atol( psz_value );
413 snprintf( psz_full_name, 128, "%s-%s\0", psz_module,
414 psz_param[i_this_param] );
415 var_Set( p_access, psz_full_name, v_value );
419 if( i_token_len >= strlen( psz_parser ) )
421 psz_parser += i_token_len + 1;
422 i_token_len = strcspn( psz_parser, ":" );
428 /*****************************************************************************
429 * AccessClose: close device
430 *****************************************************************************/
431 static void Close( vlc_object_t *p_this )
433 access_t *p_access = (access_t *)p_this;
434 access_sys_t *p_sys = p_access->p_sys;
436 dvb_deleteBDAGraph( p_access );
438 vlc_mutex_destroy( &p_sys->lock );
439 vlc_cond_destroy( &p_sys->wait );
444 /*****************************************************************************
446 *****************************************************************************/
447 static int Control( access_t *p_access, int i_query, va_list args )
449 vlc_bool_t *pb_bool, b_bool;
455 case ACCESS_CAN_SEEK: /* 0 */
456 case ACCESS_CAN_FASTSEEK: /* 1 */
457 case ACCESS_CAN_PAUSE: /* 2 */
458 case ACCESS_CAN_CONTROL_PACE: /* 3 */
459 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
460 *pb_bool = VLC_FALSE;
462 case ACCESS_GET_MTU: /* 4 */
463 pi_int = (int*)va_arg( args, int * );
466 case ACCESS_GET_PTS_DELAY: /* 5 */
467 pi_64 = (int64_t*)va_arg( args, int64_t * );
468 *pi_64 = var_GetInteger( p_access, "dvb-caching" ) * 1000;
471 case ACCESS_GET_TITLE_INFO: /* 6 */
472 case ACCESS_GET_META: /* 7 */
473 case ACCESS_SET_PAUSE_STATE: /* 8 */
474 case ACCESS_SET_TITLE: /* 9 */
475 case ACCESS_SET_SEEKPOINT: /* 10 */
478 case ACCESS_SET_PRIVATE_ID_STATE: /* 11 */
479 i_int = (int)va_arg( args, int );
480 b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t );
482 case ACCESS_SET_PRIVATE_ID_CA: /* 12 -From Demux */
486 "DVB_Control: Unimplemented query in control %d", i_query );
493 /*****************************************************************************
495 *****************************************************************************/
496 static block_t *Block( access_t *p_access )
501 if( p_access->b_die )
504 l_buffer_len = dvb_GetBufferSize( p_access );
505 if( l_buffer_len < 0 )
508 p_block = block_New( p_access, l_buffer_len );
509 if( dvb_ReadBuffer( p_access, &l_buffer_len, p_block->p_buffer )