3 * @brief Digital broadcasting input module for VLC media player
5 /*****************************************************************************
6 * Copyright © 2011 Rémi Denis-Courmont
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 2.1
11 * of the License, or (at your option) any later version.
13 * This library 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 Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ****************************************************************************/
27 #include <vlc_common.h>
28 #include <vlc_access.h>
29 #include <vlc_plugin.h>
30 #include <vlc_dialog.h>
35 #define CACHING_TEXT N_("Caching value (ms)")
36 #define CACHING_LONGTEXT N_( \
37 "The cache size (delay) for digital broadcasts (in milliseconds).")
39 #define ADAPTER_TEXT N_("DVB adapter")
40 #define ADAPTER_LONGTEXT N_( \
41 "If there is more than one digital broadcasting adapter, " \
42 "the adapter number must be selected. Numbering start from zero.")
44 #define BUDGET_TEXT N_("Do not demultiplex")
45 #define BUDGET_LONGTEXT N_( \
46 "Only useful programs are normally demultiplexed from the transponder. " \
47 "This option will disable demultiplexing and receive all programs.")
49 #define NAME_TEXT N_("Network name")
50 #define NAME_LONGTEXT N_("Unique network name in the System Tuning Spaces")
52 #define CREATE_TEXT N_("Network name to create")
53 #define CREATE_LONGTEXT N_("Create unique name in the System Tuning Spaces")
55 #define FREQ_TEXT N_("Frequency (Hz)")
56 #define FREQ_LONGTEXT N_( \
57 "TV channels are grouped by transponder (a.k.a. multiplex) " \
58 "on a given frequency. This is required to tune the receiver.")
60 #define MODULATION_TEXT N_("Modulation / Constellation")
61 #define MODULATION_LONGTEXT N_( \
62 "The digital signal can be modulated according with different " \
63 "constellations (depending on the delivery system). " \
64 "If the demodulator cannot detect the constellation automatically, " \
65 "it needs to be configured manually.")
66 static const char *const modulation_vlc[] = { "",
67 "QAM", "16QAM", "32QAM", "64QAM", "128QAM", "256QAM",
69 "QPSK", "DQPSK", "8PSK", "16APSK", "32APSK",
71 static const char *const modulation_user[] = { N_("Undefined"),
72 "Auto QAM", "16-QAM", "32-QAM", "64-QAM", "128-QAM", "256-QAM",
74 "QPSK", "DQPSK", "8-PSK", "16-APSK", "32-APSK",
77 #define SRATE_TEXT N_("Symbol rate (bauds)")
78 #define SRATE_LONGTEXT N_( \
79 "The symbol rate must be specified manually for some systems, " \
80 "notably DVB-C, DVB-S and DVB-S2.")
82 #define INVERSION_TEXT N_("Spectrum inversion")
83 #define INVERSION_LONGTEXT N_( \
84 "If the demodulator cannot detect spectral inversion correctly, " \
85 "it needs to be configured manually.")
86 const int auto_off_on_vlc[] = { -1, 0, 1 };
87 static const char *const auto_off_on_user[] = { N_("Automatic"),
88 N_("Off"), N_("On") };
90 #define CODE_RATE_TEXT N_("FEC code rate")
91 #define CODE_RATE_HP_TEXT N_("High-priority code rate")
92 #define CODE_RATE_LP_TEXT N_("Low-priority code rate")
93 #define CODE_RATE_LONGTEXT N_( \
94 "The code rate for Forward Error Correction can be specified.")
95 static const char *const code_rate_vlc[] = { "",
96 "0", /*"1/4", "1/3",*/ "1/2", "3/5", "2/3", "3/4",
97 "4/5", "5/6", "6/7", "7/8", "8/9", "9/10",
99 static const char *const code_rate_user[] = { N_("Automatic"),
100 N_("None"), /*"1/4", "1/3",*/ "1/2", "3/5", "2/3", "3/4",
101 "4/5", "5/6", "6/7", "7/8", "8/9", "9/10",
104 #define TRANSMISSION_TEXT N_("Transmission mode")
105 const int transmission_vlc[] = { -1,
108 static const char *const transmission_user[] = { N_("Automatic"),
109 "1k", "2k", "4k", "8k", "16k", "32k",
112 #define BANDWIDTH_TEXT N_("Bandwidth (MHz)")
113 const int bandwidth_vlc[] = { 0,
116 static const char *const bandwidth_user[] = { N_("Automatic"),
117 N_("10 MHz"), N_("8 MHz"), N_("7 MHz"), N_("6 MHz"),
118 N_("5 MHz"), N_("1.712 MHz"),
121 #define GUARD_TEXT N_("Guard interval")
122 const char *const guard_vlc[] = { "",
123 "1/128", "1/32", "1/16", "19/256", "1/8", "19/128", "1/4",
125 static const char *const guard_user[] = { N_("Automatic"),
126 "1/128", "1/32", "1/16", "19/256", "1/8", "19/128", "1/4",
129 #define HIERARCHY_TEXT N_("Hierarchy mode")
130 const int hierarchy_vlc[] = { -1,
133 static const char *const hierarchy_user[] = { N_("Automatic"),
134 N_("None"), "1", "2", "4",
137 #define PILOT_TEXT N_("Pilot")
139 #define ROLLOFF_TEXT N_("Roll-off factor")
140 const int rolloff_vlc[] = { -1,
143 static const char *const rolloff_user[] = { N_("Automatic"),
144 N_("0.35 (same as DVB-S)"), N_("0.20"), N_("0.25"),
147 #define POLARIZATION_TEXT N_("Polarization (Voltage)")
148 #define POLARIZATION_LONGTEXT N_( \
149 "To select the polarization of the transponder, a different voltage " \
150 "is normally applied to the low noise block-downconverter (LNB).")
151 static const char *const polarization_vlc[] = { "", "V", "H", "R", "L" };
152 static const char *const polarization_user[] = { N_("Unspecified (0V)"),
153 N_("Vertical (13V)"), N_("Horizontal (18V)"),
154 N_("Circular Right Hand (13V)"), N_("Circular Left Hand (18V)") };
156 #define HIGH_VOLTAGE_TEXT N_("High LNB voltage")
157 #define HIGH_VOLTAGE_LONGTEXT N_( \
158 "If the cables between the satellilte low noise block-downconverter and " \
159 "the receiver are long, higher voltage may be required.\n" \
160 "Not all receivers support this.")
162 #define LNB_LOW_TEXT N_("Local oscillator low frequency (kHz)")
163 #define LNB_HIGH_TEXT N_("Local oscillator high frequency (kHz)")
164 #define LNB_LONGTEXT N_( \
165 "The downconverter (LNB) will substract the local oscillator frequency " \
166 "from the satellite transmission frequency. " \
167 "The intermediate frequency (IF) on the RF cable is the result.")
168 #define LNB_SWITCH_TEXT N_("Universal LNB switch frequency (kHz)")
169 #define LNB_SWITCH_LONGTEXT N_( \
170 "If the satellite transmission frequency exceeds the switch frequency, " \
171 "the oscillator high frequency will be used as reference. " \
172 "Furthermore the automatic continuous 22kHz tone will be sent.")
173 #define TONE_TEXT N_("Continuous 22kHz tone")
174 #define TONE_LONGTEXT N_( \
175 "A continuous tone at 22kHz can be sent on the cable. " \
176 "This normally selects the higher frequency band from a universal LNB.")
178 #define SATNO_TEXT N_("DiSEqC LNB number")
179 #define SATNO_LONGTEXT N_( \
180 "If the satellite receiver is connected to multiple " \
181 "low noise block-downconverters (LNB) through a DiSEqC 1.0 switch, " \
182 "the correct LNB can be selected (1 to 4). " \
183 "If there is no switch, this parameter should be 0.")
185 static const int satno_vlc[] = { 0, 1, 2, 3, 4 };
186 static const char *const satno_user[] = { N_("Unspecified"),
187 "A/1", "B/2", "C/3", "D/4" };
190 /* BDA module additional DVB-S Parameters */
191 #define NETID_TEXT N_("Network identifier")
192 #define AZIMUTH_TEXT N_("Satellite azimuth")
193 #define AZIMUTH_LONGTEXT N_("Satellite azimuth in tenths of degree")
194 #define ELEVATION_TEXT N_("Satellite elevation")
195 #define ELEVATION_LONGTEXT N_("Satellite elevation in tenths of degree")
196 #define LONGITUDE_TEXT N_("Satellite longitude")
197 #define LONGITUDE_LONGTEXT N_( \
198 "Satellite longitude in tenths of degree. West is negative.")
200 #define RANGE_TEXT N_("Satellite range code")
201 #define RANGE_LONGTEXT N_("Satellite range code as defined by manufacturer " \
202 "e.g. DISEqC switch code")
205 #define MAJOR_CHANNEL_TEXT N_("Major channel")
206 #define MINOR_CHANNEL_TEXT N_("ATSC minor channel")
207 #define PHYSICAL_CHANNEL_TEXT N_("Physical channel")
209 static int Open (vlc_object_t *);
210 static void Close (vlc_object_t *);
213 set_shortname (N_("DTV"))
214 set_description (N_("Digital Television and Radio"))
215 set_category (CAT_INPUT)
216 set_subcategory (SUBCAT_INPUT_ACCESS)
217 set_capability ("access", 0)
218 set_callbacks (Open, Close)
219 add_shortcut ("dtv", "tv", "dvb", /* "radio", "dab",*/
220 "cable", "dvb-c", "satellite", "dvb-s", "dvb-s2",
221 "terrestrial", "dvb-t", "dvb-t2", "atsc", "cqam")
223 /* All options starting with dvb- can be overridden in the MRL, so they
224 * must all be "safe". Nevertheless, we do not mark as safe those that are
225 * really specific to the local system (e.g. device ID...).
226 * It wouldn't make sense to deliver those through a playlist. */
228 add_integer ("dvb-caching", DEFAULT_PTS_DELAY / 1000,
229 CACHING_TEXT, CACHING_LONGTEXT, true)
230 change_integer_range (0, 60000)
233 add_integer ("dvb-adapter", 0, ADAPTER_TEXT, ADAPTER_LONGTEXT, false)
234 change_integer_range (0, 255)
235 add_obsolete_integer ("dvb-device")
236 add_bool ("dvb-budget-mode", false, BUDGET_TEXT, BUDGET_LONGTEXT, true)
239 add_integer ("dvb-adapter", -1, ADAPTER_TEXT, ADAPTER_LONGTEXT, true)
240 add_string ("dvb-network-name", "", NAME_TEXT, NAME_LONGTEXT, true)
241 /* Hmm: is this one really safe??: */
242 add_string ("dvb-create-name", "", CREATE_TEXT, CREATE_LONGTEXT, true)
245 add_integer ("dvb-frequency", 0, FREQ_TEXT, FREQ_LONGTEXT, false)
246 change_integer_range (0, 107999999)
248 add_integer ("dvb-inversion", -1, INVERSION_TEXT, INVERSION_LONGTEXT, true)
249 change_integer_list (auto_off_on_vlc, auto_off_on_user)
252 set_section (N_("Terrestrial reception parameters"), NULL)
253 add_integer ("dvb-bandwidth", 0, BANDWIDTH_TEXT, BANDWIDTH_TEXT, true)
254 change_integer_list (bandwidth_vlc, bandwidth_user)
256 add_string ("dvb-code-rate-hp", "",
257 CODE_RATE_HP_TEXT, CODE_RATE_LONGTEXT, false)
258 change_string_list (code_rate_vlc, code_rate_user, NULL)
260 add_string ("dvb-code-rate-lp", "",
261 CODE_RATE_LP_TEXT, CODE_RATE_LONGTEXT, false)
262 change_string_list (code_rate_vlc, code_rate_user, NULL)
264 add_integer ("dvb-transmission", 0,
265 TRANSMISSION_TEXT, TRANSMISSION_TEXT, true)
266 change_integer_list (transmission_vlc, transmission_user)
268 add_string ("dvb-guard", "", GUARD_TEXT, GUARD_TEXT, true)
269 change_string_list (guard_vlc, guard_user, NULL)
271 add_integer ("dvb-hierarchy", -1, HIERARCHY_TEXT, HIERARCHY_TEXT, true)
272 change_integer_list (hierarchy_vlc, hierarchy_user)
275 set_section (N_("Cable and satellite reception parameters"), NULL)
276 add_string ("dvb-modulation", NULL,
277 MODULATION_TEXT, MODULATION_LONGTEXT, false)
278 change_string_list (modulation_vlc, modulation_user, NULL)
280 add_integer ("dvb-srate", 0, SRATE_TEXT, SRATE_LONGTEXT, false)
281 change_integer_range (0, UINT64_C(0xffffffff))
283 add_string ("dvb-fec", "", CODE_RATE_TEXT, CODE_RATE_LONGTEXT, true)
284 change_string_list (code_rate_vlc, code_rate_user, NULL)
287 set_section (N_("DVB-S2 parameters"), NULL)
288 add_integer ("dvb-pilot", -1, PILOT_TEXT, PILOT_TEXT, true)
289 change_integer_list (auto_off_on_vlc, auto_off_on_user)
291 add_integer ("dvb-rolloff", -1, ROLLOFF_TEXT, ROLLOFF_TEXT, true)
292 change_integer_list (rolloff_vlc, rolloff_user)
295 set_section (N_("Satellite equipment control"), NULL)
296 add_string ("dvb-polarization", "",
297 POLARIZATION_TEXT, POLARIZATION_LONGTEXT, false)
298 change_string_list (polarization_vlc, polarization_user, NULL)
300 add_integer ("dvb-voltage", 13, "", "", true)
301 change_integer_range (0, 18)
305 add_bool ("dvb-high-voltage", false,
306 HIGH_VOLTAGE_TEXT, HIGH_VOLTAGE_LONGTEXT, false)
308 add_integer ("dvb-lnb-low", 0, LNB_LOW_TEXT, LNB_LONGTEXT, true)
309 change_integer_range (0, 0x7fffffff)
310 add_deprecated_alias ("dvb-lnb-lof1")
311 add_integer ("dvb-lnb-high", 0, LNB_HIGH_TEXT, LNB_LONGTEXT, true)
312 change_integer_range (0, 0x7fffffff)
313 add_deprecated_alias ("dvb-lnb-lof2")
314 add_integer ("dvb-lnb-switch", 11700000,
315 LNB_SWITCH_TEXT, LNB_SWITCH_LONGTEXT, true)
316 change_integer_range (0, 0x7fffffff)
317 add_deprecated_alias ("dvb-lnb-slof")
319 add_integer ("dvb-satno", 0, SATNO_TEXT, SATNO_LONGTEXT, true)
320 change_integer_list (satno_vlc, satno_user)
321 add_integer ("dvb-tone", -1, TONE_TEXT, TONE_LONGTEXT, true)
322 change_integer_list (auto_off_on_vlc, auto_off_on_user)
325 add_integer ("dvb-network-id", 0, NETID_TEXT, NETID_TEXT, true)
326 add_integer ("dvb-azimuth", 0, AZIMUTH_TEXT, AZIMUTH_LONGTEXT, true)
327 add_integer ("dvb-elevation", 0, ELEVATION_TEXT, ELEVATION_LONGTEXT, true)
328 add_integer ("dvb-longitude", 0, LONGITUDE_TEXT, LONGITUDE_LONGTEXT, true)
329 add_string ("dvb-range", "", RANGE_TEXT, RANGE_LONGTEXT, true)
330 /* dvb-range corresponds to the BDA InputRange parameter which is
331 * used by some drivers to control the diseqc */
333 set_section (N_("ATSC reception parameters"), NULL)
334 add_integer ("dvb-major-channel", 0, MAJOR_CHANNEL_TEXT, NULL, true)
335 add_integer ("dvb-minor-channel", 0, MINOR_CHANNEL_TEXT, NULL, true)
336 add_integer ("dvb-physical-channel", 0, PHYSICAL_CHANNEL_TEXT, NULL, true)
345 typedef struct delsys
347 int (*setup) (vlc_object_t *, dvb_device_t *, uint64_t freq);
348 /* TODO: scan stuff */
351 static const delsys_t dvbc, dvbs, dvbs2, dvbt, dvbt2, atsc, cqam;
353 static block_t *Read (access_t *);
354 static int Control (access_t *, int, va_list);
355 static const delsys_t *GuessSystem (const char *, dvb_device_t *);
356 static int Tune (vlc_object_t *, dvb_device_t *, const delsys_t *, uint64_t);
357 static uint64_t var_InheritFrequency (vlc_object_t *);
359 static int Open (vlc_object_t *obj)
361 access_t *access = (access_t *)obj;
362 access_sys_t *sys = malloc (sizeof (*sys));
363 if (unlikely(sys == NULL))
366 var_LocationParse (obj, access->psz_location, "dvb-");
368 dvb_device_t *dev = dvb_open (obj);
378 uint64_t freq = var_InheritFrequency (obj);
381 const delsys_t *delsys = GuessSystem (access->psz_access, dev);
382 if (delsys == NULL || Tune (obj, dev, delsys, freq))
384 msg_Err (obj, "tuning to %"PRIu64" Hz failed", freq);
385 dialog_Fatal (obj, N_("Digital broadcasting"),
386 N_("The selected digital tuner does not support "
387 "the specified parameters.\n"
388 "Please check the preferences."));
392 dvb_add_pid (dev, 0);
394 access->pf_block = Read;
395 access->pf_control = Control;
396 if (access->psz_demux == NULL || !access->psz_demux[0])
398 free (access->psz_demux);
399 access->psz_demux = strdup ("ts");
405 access->p_sys = NULL;
409 static void Close (vlc_object_t *obj)
411 access_t *access = (access_t *)obj;
412 access_sys_t *sys = access->p_sys;
414 dvb_close (sys->dev);
418 static block_t *Read (access_t *access)
420 #define BUFSIZE (20*188)
421 block_t *block = block_Alloc (BUFSIZE);
422 if (unlikely(block == NULL))
425 access_sys_t *sys = access->p_sys;
426 ssize_t val = dvb_read (sys->dev, block->p_buffer, BUFSIZE);
431 access->info.b_eof = true;
432 block_Release (block);
436 block->i_buffer = val;
440 static int Control (access_t *access, int query, va_list args)
442 access_sys_t *sys = access->p_sys;
443 dvb_device_t *dev = sys->dev;
447 case ACCESS_CAN_SEEK:
448 case ACCESS_CAN_FASTSEEK:
449 case ACCESS_CAN_PAUSE:
450 case ACCESS_CAN_CONTROL_PACE:
452 bool *v = va_arg (args, bool *);
457 case ACCESS_GET_PTS_DELAY:
459 int64_t *v = va_arg (args, int64_t *);
460 *v = var_InheritInteger (access, "dvb-caching") * INT64_C(1000);
464 case ACCESS_GET_TITLE_INFO:
465 case ACCESS_GET_META:
468 case ACCESS_GET_CONTENT_TYPE:
470 char **pt = va_arg (args, char **);
471 *pt = strdup ("video/MP2T");
475 case ACCESS_SET_PAUSE_STATE:
476 case ACCESS_SET_TITLE:
477 case ACCESS_SET_SEEKPOINT:
480 case ACCESS_GET_SIGNAL:
481 *va_arg (args, double *) = dvb_get_snr (dev);
482 *va_arg (args, double *) = dvb_get_signal_strength (dev);
485 case ACCESS_SET_PRIVATE_ID_STATE:
487 unsigned pid = va_arg (args, unsigned);
488 bool add = va_arg (args, unsigned);
490 if (unlikely(pid > 0x1FFF))
494 if (dvb_add_pid (dev, pid))
498 dvb_remove_pid (dev, pid);
502 case ACCESS_SET_PRIVATE_ID_CA:
505 struct dvbpsi_pmt_s *pmt = va_arg (args, struct dvbpsi_pmt_s *);
507 dvb_set_ca_pmt (dev, pmt);
512 case ACCESS_GET_PRIVATE_ID_STATE:
516 msg_Warn (access, "unimplemented query %d in control", query);
521 /*** Generic tuning ***/
523 /** Determines which delivery system to use. */
524 static const delsys_t *GuessSystem (const char *scheme, dvb_device_t *dev)
526 /* NOTE: We should guess the delivery system for the "cable", "satellite"
527 * and "terrestrial" shortcuts (i.e. DVB, ISDB, ATSC...). But there is
528 * seemingly no sane way to do get the info with Linux DVB version 5.2.
529 * In particular, the frontend infos distinguish only the modulator class
530 * (QPSK, QAM, OFDM or ATSC).
532 * Furthermore, if the demodulator supports 2G, we cannot guess whether
533 * 1G or 2G is intended. For backward compatibility, 1G is assumed
534 * (this is not a limitation of Linux DVB). We will probably need something
535 * smarter when 2G (semi automatic) scanning is implemented. */
536 if (!strcasecmp (scheme, "cable"))
539 if (!strcasecmp (scheme, "satellite"))
542 if (!strcasecmp (scheme, "terrestrial"))
545 if (!strcasecmp (scheme, "atsc"))
547 if (!strcasecmp (scheme, "cqam"))
549 if (!strcasecmp (scheme, "dvb-c"))
551 if (!strcasecmp (scheme, "dvb-s"))
553 if (!strcasecmp (scheme, "dvb-s2"))
555 if (!strcasecmp (scheme, "dvb-t"))
557 if (!strcasecmp (scheme, "dvb-t2"))
560 unsigned systems = dvb_enum_systems (dev);
572 /** Set parameters and tune the device */
573 static int Tune (vlc_object_t *obj, dvb_device_t *dev, const delsys_t *delsys,
576 if (delsys->setup (obj, dev, freq)
577 || dvb_set_inversion (dev, var_InheritInteger (obj, "dvb-inversion"))
583 static uint64_t var_InheritFrequency (vlc_object_t *obj)
585 uint64_t freq = var_InheritInteger (obj, "dvb-frequency");
586 if (freq != 0 && freq <= 108000000)
588 msg_Err (obj, "%"PRIu64" Hz carrier frequency is too low.", freq);
590 msg_Info (obj, "Assuming %"PRIu64" Hz frequency instead.", freq);
595 static uint32_t var_InheritCodeRate (vlc_object_t *obj, const char *varname)
597 char *code_rate = var_InheritString (obj, varname);
598 if (code_rate == NULL)
602 int v = sscanf (code_rate, "%"SCNu16"/%"SCNu16, &a, &b);
607 return VLC_FEC(a, b);
611 /* Backward compatibility with VLC < 1.2 (= Linux DVBv3 enum) */
614 msg_Warn (obj, "\"%s=%"PRIu16"\" option is obsolete. "
615 "Use \"%s=%"PRIu16"/%"PRIu16"\" instead.",
616 varname + 4, a, varname + 4, a, a + 1);
617 return VLC_FEC(a, a + 1);
620 msg_Warn (obj, "\"fec=9\" option is obsolete.");
625 static int modcmp (const void *a, const void *b)
627 return strcasecmp (a, *(const char *const *)b);
630 static const char *var_InheritModulation (vlc_object_t *obj)
632 char *mod = var_InheritString (obj, "dvb-modulation");
636 size_t n = sizeof (modulation_vlc) / sizeof (modulation_vlc[0]);
637 const char *const *p = lfind (mod, modulation_vlc, &n, sizeof (mod), modcmp);
644 /* Backward compatibility with VLC < 1.2 */
648 case -1: str = "QPSK"; break;
649 case 0: str = "QAM"; break;
650 case 8: str = "8VSB"; break;
651 case 16: str = "16QAM"; break;
652 case 32: str = "32QAM"; break;
653 case 64: str = "64QAM"; break;
654 case 128: str = "128QAM"; break;
655 case 256: str = "256QAM"; break;
659 msg_Warn (obj, "\"modulation=%s\" option is obsolete. "
660 "Use \"modulation=%s\" instead.", mod, str);
665 static unsigned var_InheritGuardInterval (vlc_object_t *obj)
667 char *guard = var_InheritString (obj, "dvb-guard");
669 return VLC_GUARD_AUTO;
672 int v = sscanf (guard, "%"SCNu16"/%"SCNu16, &a, &b);
677 /* Backward compatibility with VLC < 1.2 */
680 msg_Warn (obj, "\"guard=%"PRIu16"\" option is obsolete. "
681 "Use \"guard=1/%"PRIu16" instead.", a, a);
685 return VLC_GUARD(a, b);
687 return VLC_GUARD_AUTO;
692 static int atsc_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
694 const char *mod = var_InheritModulation (obj);
696 return dvb_set_atsc (dev, freq, mod);
699 static const delsys_t atsc = { .setup = atsc_setup };
701 static int cqam_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
703 const char *mod = var_InheritModulation (obj);
705 return dvb_set_cqam (dev, freq, mod);
708 static const delsys_t cqam = { .setup = cqam_setup };
712 static int dvbc_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
714 const char *mod = var_InheritModulation (obj);
715 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
716 unsigned srate = var_InheritInteger (obj, "dvb-srate");
718 return dvb_set_dvbc (dev, freq, mod, srate, fec);
721 static const delsys_t dvbc = { .setup = dvbc_setup };
725 static char var_InheritPolarization (vlc_object_t *obj)
728 char *polstr = var_InheritString (obj, "dvb-polarization");
733 if (unlikely(pol >= 'a' && pol <= 'z'))
738 /* Backward compatibility with VLC for Linux < 1.2 */
739 unsigned voltage = var_InheritInteger (obj, "dvb-voltage");
742 case 13: pol = 'V'; break;
743 case 18: pol = 'H'; break;
747 msg_Warn (obj, "\"voltage=%u\" option is obsolete. "
748 "Use \"polarization=%c\" instead.", voltage, pol);
752 static int sec_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
754 char pol = var_InheritPolarization (obj);
755 unsigned lowf = var_InheritInteger (obj, "dvb-lnb-low");
756 unsigned highf = var_InheritInteger (obj, "dvb-lnb-high");
757 unsigned switchf = var_InheritInteger (obj, "dvb-lnb-switch");
759 return dvb_set_sec (dev, freq, pol, lowf, highf, switchf);
762 static int dvbs_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
764 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
765 uint32_t srate = var_InheritInteger (obj, "dvb-srate");
767 int ret = dvb_set_dvbs (dev, freq, srate, fec);
769 ret = sec_setup (obj, dev, freq);
773 static int dvbs2_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
775 const char *mod = var_InheritModulation (obj);
776 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
777 uint32_t srate = var_InheritInteger (obj, "dvb-srate");
778 int pilot = var_InheritInteger (obj, "dvb-pilot");
779 int rolloff = var_InheritInteger (obj, "dvb-rolloff");
781 int ret = dvb_set_dvbs2 (dev, freq, mod, srate, fec, pilot, rolloff);
783 ret = sec_setup (obj, dev, freq);
787 static const delsys_t dvbs = { .setup = dvbs_setup };
788 static const delsys_t dvbs2 = { .setup = dvbs2_setup };
792 static int dvbt_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
794 const char *mod = var_InheritModulation (obj);
795 uint32_t fec_hp = var_InheritCodeRate (obj, "dvb-code-rate-hp");
796 uint32_t fec_lp = var_InheritCodeRate (obj, "dvb-code-rate-lp");
797 uint32_t guard = var_InheritGuardInterval (obj);
798 uint32_t bw = var_InheritInteger (obj, "dvb-bandwidth");
799 int tx = var_InheritInteger (obj, "dvb-transmission");
800 int h = var_InheritInteger (obj, "dvb-hierarchy");
802 return dvb_set_dvbt (dev, freq, mod, fec_hp, fec_lp, bw, tx, guard, h);
805 static int dvbt2_setup (vlc_object_t *obj, dvb_device_t *dev, uint64_t freq)
807 const char *mod = var_InheritModulation (obj);
808 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
809 uint32_t guard = var_InheritGuardInterval (obj);
810 uint32_t bw = var_InheritInteger (obj, "dvb-bandwidth");
811 int tx = var_InheritInteger (obj, "dvb-transmission");
813 return dvb_set_dvbt2 (dev, freq, mod, fec, bw, tx, guard);
816 static const delsys_t dvbt = { .setup = dvbt_setup };
817 static const delsys_t dvbt2 = { .setup = dvbt2_setup };