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 DEVICE_TEXT N_("DVB device")
45 #define DEVICE_LONGTEXT N_( \
46 "If the selected adapter has more than one tuner, " \
47 "the tuner number must be selected. Numbering start from zero.")
49 #define BUDGET_TEXT N_("Do not demultiplex")
50 #define BUDGET_LONGTEXT N_( \
51 "Only useful programs are normally demultiplexed from the transponder. " \
52 "This option will disable demultiplexing and receive all programs.")
54 #define NAME_TEXT N_("Network name")
55 #define NAME_LONGTEXT N_("Unique network name in the System Tuning Spaces")
57 #define CREATE_TEXT N_("Network name to create")
58 #define CREATE_LONGTEXT N_("Create unique name in the System Tuning Spaces")
60 #define FREQ_TEXT N_("Frequency (kHz)")
61 #define FREQ_LONGTEXT N_( \
62 "TV channels are grouped by transponder (a.k.a. multiplex) " \
63 "on a given frequency. This is required to tune the receiver.")
65 #define MODULATION_TEXT N_("Modulation / Constellation")
66 #define MODULATION_LONGTEXT N_( \
67 "The digital signal can be modulated according with different " \
68 "constellations (depending on the delivery system). " \
69 "If the demodulator cannot detect the constellation automatically, " \
70 "it needs to be configured manually.")
71 static const char *const modulation_vlc[] = { "",
72 "QAM", "16QAM", "32QAM", "64QAM", "128QAM", "256QAM",
74 "QPSK", "DQPSK", "8PSK", "16APSK", "32APSK",
76 static const char *const modulation_user[] = { N_("Undefined"),
77 "Auto QAM", "16-QAM", "32-QAM", "64-QAM", "128-QAM", "256-QAM",
79 "QPSK", "DQPSK", "8-PSK", "16-APSK", "32-APSK",
82 #define SRATE_TEXT N_("Symbol rate (bauds)")
83 #define SRATE_LONGTEXT N_( \
84 "The symbol rate must be specified manually for some systems, " \
85 "notably DVB-C, DVB-S and DVB-S2.")
87 #define INVERSION_TEXT N_("Spectrum inversion")
88 #define INVERSION_LONGTEXT N_( \
89 "If the demodulator cannot detect spectral inversion correctly, " \
90 "it needs to be configured manually.")
91 const int auto_off_on_vlc[] = { -1, 0, 1 };
92 static const char *const auto_off_on_user[] = { N_("Automatic"),
93 N_("Off"), N_("On") };
95 #define CODE_RATE_TEXT N_("FEC code rate")
96 #define CODE_RATE_HP_TEXT N_("High-priority code rate")
97 #define CODE_RATE_LP_TEXT N_("Low-priority code rate")
98 #define CODE_RATE_LONGTEXT N_( \
99 "The code rate for Forward Error Correction can be specified.")
100 static const char *const code_rate_vlc[] = { "",
101 "0", /*"1/4", "1/3",*/ "1/2", "3/5", "2/3", "3/4",
102 "4/5", "5/6", "6/7", "7/8", "8/9", "9/10",
104 static const char *const code_rate_user[] = { N_("Automatic"),
105 N_("None"), /*"1/4", "1/3",*/ "1/2", "3/5", "2/3", "3/4",
106 "4/5", "5/6", "6/7", "7/8", "8/9", "9/10",
109 #define TRANSMISSION_TEXT N_("Transmission mode")
110 const int transmission_vlc[] = { -1,
113 static const char *const transmission_user[] = { N_("Automatic"),
114 "2k", "4k", "8k", /*"16k", "32k", */
117 #define BANDWIDTH_TEXT N_("Bandwidth (MHz)")
118 const int bandwidth_vlc[] = { 0,
121 static const char *const bandwidth_user[] = { N_("Automatic"),
122 N_("8 MHz"), N_("7 MHz"), N_("6 MHz"),
125 #define GUARD_TEXT N_("Guard interval")
126 const char *const guard_vlc[] = { "",
127 /*"1/128",*/ "1/32", "1/16", /*"19/128",*/ "1/8", /*"9/256",*/ "1/4",
129 static const char *const guard_user[] = { N_("Automatic"),
130 /*"1/128",*/ "1/32", "1/16", /*"19/128",*/ "1/8", /*"9/256",*/ "1/4",
133 #define HIERARCHY_TEXT N_("Hierarchy mode")
134 const int hierarchy_vlc[] = { -1,
137 static const char *const hierarchy_user[] = { N_("Automatic"),
138 N_("None"), "1", "2", "4",
141 #define PILOT_TEXT N_("Pilot")
143 #define ROLLOFF_TEXT N_("Roll-off factor")
144 const int rolloff_vlc[] = { -1,
147 static const char *const rolloff_user[] = { N_("Automatic"),
148 N_("0.35 (same as DVB-S)"), N_("0.20"), N_("0.25"),
151 #define POLARIZATION_TEXT N_("Polarization (Voltage)")
152 #define POLARIZATION_LONGTEXT N_( \
153 "To select the polarization of the transponder, a different voltage " \
154 "is normally applied to the low noise block-downconverter (LNB).")
155 static const char *const polarization_vlc[] = { "", "V", "H", "R", "L" };
156 static const char *const polarization_user[] = { N_("Unspecified (0V)"),
157 N_("Vertical (13V)"), N_("Horizontal (18V)"),
158 N_("Circular Right Hand (13V)"), N_("Circular Left Hand (18V)") };
160 #define HIGH_VOLTAGE_TEXT N_("High LNB voltage")
161 #define HIGH_VOLTAGE_LONGTEXT N_( \
162 "If the cables between the satellilte low noise block-downconverter and " \
163 "the receiver are long, higher voltage may be required.\n" \
164 "Not all receivers support this.")
166 #define LNB_LOW_TEXT N_("Local oscillator low frequency (kHz)")
167 #define LNB_HIGH_TEXT N_("Local oscillator high frequency (kHz)")
168 #define LNB_LONGTEXT N_( \
169 "The downconverter (LNB) will substract the local oscillator frequency " \
170 "from the satellite transmission frequency. " \
171 "The intermediate frequency (IF) on the RF cable is the result.")
172 #define LNB_SWITCH_TEXT N_("Universal LNB switch frequency (kHz)")
173 #define LNB_SWITCH_LONGTEXT N_( \
174 "If the satellite transmission frequency exceeds the switch frequency, " \
175 "the oscillator high frequency will be used as reference. " \
176 "Furthermore the automatic continuous 22kHz tone will be sent.")
177 #define TONE_TEXT N_("Continuous 22kHz tone")
178 #define TONE_LONGTEXT N_( \
179 "A continuous tone at 22kHz can be sent on the cable. " \
180 "This normally selects the higher frequency band from a universal LNB.")
182 #define SATNO_TEXT N_("DiSEqC LNB number")
183 #define SATNO_LONGTEXT N_( \
184 "If the satellite receiver is connected to multiple " \
185 "low noise block-downconverters (LNB) through a DiSEqC 1.0 switch, " \
186 "the correct LNB can be selected (1 to 4). " \
187 "If there is no switch, this parameter should be 0.")
189 static const int satno_vlc[] = { 0, 1, 2, 3, 4 };
190 static const char *const satno_user[] = { N_("Unspecified"),
191 "A/1", "B/2", "C/3", "D/4" };
194 /* BDA module additional DVB-S Parameters */
195 #define NETID_TEXT N_("Network identifier")
196 #define AZIMUTH_TEXT N_("Satellite azimuth")
197 #define AZIMUTH_LONGTEXT N_("Satellite azimuth in tenths of degree")
198 #define ELEVATION_TEXT N_("Satellite elevation")
199 #define ELEVATION_LONGTEXT N_("Satellite elevation in tenths of degree")
200 #define LONGITUDE_TEXT N_("Satellite longitude")
201 #define LONGITUDE_LONGTEXT N_( \
202 "Satellite longitude in tenths of degree. West is negative.")
204 #define RANGE_TEXT N_("Satellite range code")
205 #define RANGE_LONGTEXT N_("Satellite range code as defined by manufacturer " \
206 "e.g. DISEqC switch code")
209 #define MAJOR_CHANNEL_TEXT N_("Major channel")
210 #define MINOR_CHANNEL_TEXT N_("ATSC minor channel")
211 #define PHYSICAL_CHANNEL_TEXT N_("Physical channel")
213 static int Open (vlc_object_t *);
214 static void Close (vlc_object_t *);
217 set_shortname (N_("DTV"))
218 set_description (N_("Digital Television and Radio"))
219 set_category (CAT_INPUT)
220 set_subcategory (SUBCAT_INPUT_ACCESS)
221 set_capability ("access", 0)
222 set_callbacks (Open, Close)
223 add_shortcut ("dtv", "tv", "dvb", /* "radio", "dab",*/
224 "cable", "dvb-c", "satellite", "dvb-s", "dvb-s2",
225 "terrestrial", "dvb-t", "atsc", "cqam")
227 /* All options starting with dvb- can be overriden in the MRL, so they
228 * must all be "safe". Nevertheless, we do not mark as safe those that are
229 * really specific to the local system (e.g. device ID...).
230 * It wouldn't make sense to deliver those through a playlist. */
232 add_integer ("dvb-caching", DEFAULT_PTS_DELAY / 1000,
233 CACHING_TEXT, CACHING_LONGTEXT, true)
234 change_integer_range (0, 60000)
237 add_integer ("dvb-adapter", 0, ADAPTER_TEXT, ADAPTER_LONGTEXT, false)
238 change_integer_range (0, 255)
239 add_integer ("dvb-device", 0, DEVICE_TEXT, DEVICE_LONGTEXT, false)
240 change_integer_range (0, 255)
241 add_bool ("dvb-budget-mode", false, BUDGET_TEXT, BUDGET_LONGTEXT, true)
244 add_integer ("dvb-adapter", -1, ADAPTER_TEXT, ADAPTER_LONGTEXT, true)
245 add_string ("dvb-network-name", "", NAME_TEXT, NAME_LONGTEXT, true)
246 /* Hmm: is this one really safe??: */
247 add_string ("dvb-create-name", "", CREATE_TEXT, CREATE_LONGTEXT, true)
250 add_integer ("dvb-frequency", 0, FREQ_TEXT, FREQ_LONGTEXT, false)
251 change_integer_range (0, 107999999)
253 add_integer ("dvb-inversion", -1, INVERSION_TEXT, INVERSION_LONGTEXT, true)
254 change_integer_list (auto_off_on_vlc, auto_off_on_user)
257 set_section (N_("Terrestrial reception parameters"), NULL)
258 add_integer ("dvb-bandwidth", 0, BANDWIDTH_TEXT, BANDWIDTH_TEXT, true)
259 change_integer_list (bandwidth_vlc, bandwidth_user)
261 add_string ("dvb-code-rate-hp", "",
262 CODE_RATE_HP_TEXT, CODE_RATE_LONGTEXT, false)
263 change_string_list (code_rate_vlc, code_rate_user, NULL)
265 add_string ("dvb-code-rate-lp", "",
266 CODE_RATE_LP_TEXT, CODE_RATE_LONGTEXT, false)
267 change_string_list (code_rate_vlc, code_rate_user, NULL)
269 add_integer ("dvb-transmission", 0,
270 TRANSMISSION_TEXT, TRANSMISSION_TEXT, true)
271 change_integer_list (transmission_vlc, transmission_user)
273 add_string ("dvb-guard", "", GUARD_TEXT, GUARD_TEXT, true)
274 change_string_list (guard_vlc, guard_user, NULL)
276 add_integer ("dvb-hierarchy", -1, HIERARCHY_TEXT, HIERARCHY_TEXT, true)
277 change_integer_list (hierarchy_vlc, hierarchy_user)
280 set_section (N_("Cable and satellite reception parameters"), NULL)
281 add_string ("dvb-modulation", 0,
282 MODULATION_TEXT, MODULATION_LONGTEXT, false)
283 change_string_list (modulation_vlc, modulation_user, NULL)
285 add_integer ("dvb-srate", 0, SRATE_TEXT, SRATE_LONGTEXT, false)
286 change_integer_range (0, UINT64_C(0xffffffff))
288 add_string ("dvb-fec", "", CODE_RATE_TEXT, CODE_RATE_LONGTEXT, true)
289 change_string_list (code_rate_vlc, code_rate_user, NULL)
292 set_section (N_("DVB-S2 parameters"), NULL)
293 add_integer ("dvb-pilot", -1, PILOT_TEXT, PILOT_TEXT, true)
294 change_integer_list (auto_off_on_vlc, auto_off_on_user)
296 add_integer ("dvb-rolloff", -1, ROLLOFF_TEXT, ROLLOFF_TEXT, true)
297 change_integer_list (rolloff_vlc, rolloff_user)
300 set_section (N_("Satellite equipment control"), NULL)
301 add_string ("dvb-polarization", "",
302 POLARIZATION_TEXT, POLARIZATION_LONGTEXT, false)
303 change_string_list (polarization_vlc, polarization_user, NULL)
305 add_integer ("dvb-voltage", 13, "", "", true)
306 change_integer_range (0, 18)
310 add_bool ("dvb-high-voltage", false,
311 HIGH_VOLTAGE_TEXT, HIGH_VOLTAGE_LONGTEXT, false)
313 add_integer ("dvb-lnb-low", 0, LNB_LOW_TEXT, LNB_LONGTEXT, true)
314 change_integer_range (0, 0x7fffffff)
315 add_deprecated_alias ("dvb-lnb-lof1")
316 add_integer ("dvb-lnb-high", 0, LNB_HIGH_TEXT, LNB_LONGTEXT, true)
317 change_integer_range (0, 0x7fffffff)
318 add_deprecated_alias ("dvb-lnb-lof2")
319 add_integer ("dvb-lnb-switch", 11700000,
320 LNB_SWITCH_TEXT, LNB_SWITCH_LONGTEXT, true)
321 change_integer_range (0, 0x7fffffff)
322 add_deprecated_alias ("dvb-lnb-slof")
324 add_integer ("dvb-satno", 0, SATNO_TEXT, SATNO_LONGTEXT, true)
325 change_integer_list (satno_vlc, satno_user)
326 add_integer ("dvb-tone", -1, TONE_TEXT, TONE_LONGTEXT, true)
327 change_integer_list (auto_off_on_vlc, auto_off_on_user)
330 add_integer ("dvb-network-id", 0, NETID_TEXT, NETID_TEXT, true)
331 add_integer ("dvb-azimuth", 0, AZIMUTH_TEXT, AZIMUTH_LONGTEXT, true)
332 add_integer ("dvb-elevation", 0, ELEVATION_TEXT, ELEVATION_LONGTEXT, true)
333 add_integer ("dvb-longitude", 0, LONGITUDE_TEXT, LONGITUDE_LONGTEXT, true)
334 add_string ("dvb-range", "", RANGE_TEXT, RANGE_LONGTEXT, true)
335 /* dvb-range corresponds to the BDA InputRange parameter which is
336 * used by some drivers to control the diseqc */
338 set_section (N_("ATSC reception parameters"), NULL)
339 add_integer ("dvb-major-channel", 0, MAJOR_CHANNEL_TEXT, NULL, true)
340 add_integer ("dvb-minor-channel", 0, MINOR_CHANNEL_TEXT, NULL, true)
341 add_integer ("dvb-physical-channel", 0, PHYSICAL_CHANNEL_TEXT, NULL, true)
352 int (*setup) (vlc_object_t *, dvb_device_t *, unsigned freq);
353 /* TODO: scan stuff */
356 static block_t *Read (access_t *);
357 static int Control (access_t *, int, va_list);
358 static const delsys_t *GuessSystem (const char *, dvb_device_t *);
359 static int Tune (vlc_object_t *, dvb_device_t *, const delsys_t *, unsigned);
360 static unsigned var_InheritFrequency (vlc_object_t *);
362 static int Open (vlc_object_t *obj)
364 access_t *access = (access_t *)obj;
365 access_sys_t *sys = malloc (sizeof (*sys));
366 if (unlikely(sys == NULL))
369 var_LocationParse (obj, access->psz_location, "dvb-");
370 unsigned freq = var_InheritFrequency (obj);
372 dvb_device_t *dev = dvb_open (obj, freq != 0);
384 const delsys_t *delsys = GuessSystem (access->psz_access, dev);
385 if (delsys == NULL || Tune (obj, dev, delsys, freq))
387 msg_Err (obj, "tuning to %u kHz failed", freq);
388 dialog_Fatal (obj, N_("Digital broadcasting"),
389 N_("The selected digital tuner does not support "
390 "the specified parameters.\n"
391 "Please check the preferences."));
395 dvb_add_pid (dev, 0);
397 access->pf_block = Read;
398 access->pf_control = Control;
399 if (access->psz_demux == NULL || !access->psz_demux[0])
401 free (access->psz_demux);
402 access->psz_demux = strdup ("ts");
408 access->p_sys = NULL;
412 static void Close (vlc_object_t *obj)
414 access_t *access = (access_t *)obj;
415 access_sys_t *sys = access->p_sys;
417 dvb_close (sys->dev);
421 static block_t *Read (access_t *access)
423 #define BUFSIZE (20*188)
424 block_t *block = block_Alloc (BUFSIZE);
425 if (unlikely(block == NULL))
428 access_sys_t *sys = access->p_sys;
429 ssize_t val = dvb_read (sys->dev, block->p_buffer, BUFSIZE);
434 access->info.b_eof = true;
435 block_Release (block);
439 block->i_buffer = val;
443 static int Control (access_t *access, int query, va_list args)
445 access_sys_t *sys = access->p_sys;
446 dvb_device_t *dev = sys->dev;
450 case ACCESS_CAN_SEEK:
451 case ACCESS_CAN_FASTSEEK:
452 case ACCESS_CAN_PAUSE:
453 case ACCESS_CAN_CONTROL_PACE:
455 bool *v = va_arg (args, bool *);
460 case ACCESS_GET_PTS_DELAY:
462 int64_t *v = va_arg (args, int64_t *);
463 *v = var_InheritInteger (access, "dvb-caching") * INT64_C(1000);
467 case ACCESS_GET_TITLE_INFO:
468 case ACCESS_GET_META:
471 case ACCESS_GET_CONTENT_TYPE:
473 char **pt = va_arg (args, char **);
474 *pt = strdup ("video/MP2T");
478 case ACCESS_SET_PAUSE_STATE:
479 case ACCESS_SET_TITLE:
480 case ACCESS_SET_SEEKPOINT:
483 case ACCESS_GET_SIGNAL:
484 *va_arg (args, double *) = dvb_get_snr (dev);
485 *va_arg (args, double *) = dvb_get_signal_strength (dev);
488 case ACCESS_SET_PRIVATE_ID_STATE:
490 unsigned pid = va_arg (args, unsigned);
491 bool add = va_arg (args, unsigned);
493 if (unlikely(pid > 0x1FFF))
497 if (dvb_add_pid (dev, pid))
501 dvb_remove_pid (dev, pid);
505 case ACCESS_SET_PRIVATE_ID_CA:
509 case ACCESS_GET_PRIVATE_ID_STATE:
513 msg_Warn (access, "unimplemented query %d in control", query);
518 /*** Generic tuning ***/
520 /** Determines which delivery system to use. */
521 static const delsys_t *GuessSystem (const char *scheme, dvb_device_t *dev)
523 /* NOTE: We should guess the delivery system for the "cable", "satellite"
524 * and "terrestrial" shortcuts (i.e. DVB, ISDB, ATSC...). But there is
525 * seemingly no sane way to do get the info with Linux DVB version 5.2.
526 * In particular, the frontend infos distinguish only the modulator class
527 * (QPSK, QAM, OFDM or ATSC).
529 * Furthermore, if the demodulator supports 2G, we cannot guess whether
530 * 1G or 2G is intended. For backward compatibility, 1G is assumed
531 * (this is not a limitation of Linux DVB). We will probably need something
532 * smarter when 2G (semi automatic) scanning is implemented. */
533 if (!strcasecmp (scheme, "cable"))
536 if (!strcasecmp (scheme, "satellite"))
539 if (!strcasecmp (scheme, "terrestrial"))
542 if (!strcasecmp (scheme, "atsc"))
544 if (!strcasecmp (scheme, "cqam"))
546 if (!strcasecmp (scheme, "dvb-c"))
548 if (!strcasecmp (scheme, "dvb-s"))
550 if (!strcasecmp (scheme, "dvb-s2"))
552 if (!strcasecmp (scheme, "dvb-t"))
555 return dvb_guess_system (dev);
558 /** Set parameters and tune the device */
559 static int Tune (vlc_object_t *obj, dvb_device_t *dev, const delsys_t *delsys,
562 if (delsys->setup (obj, dev, freq)
563 || dvb_set_inversion (dev, var_InheritInteger (obj, "dvb-inversion"))
569 static unsigned var_InheritFrequency (vlc_object_t *obj)
571 unsigned freq = var_InheritInteger (obj, "dvb-frequency");
572 if (freq >= 108000000)
574 msg_Err (obj, "%u kHz frequency is too high.", freq);
576 msg_Info (obj, "Assuming %u kHz carrier frequency instead.", freq);
581 static uint32_t var_InheritCodeRate (vlc_object_t *obj, const char *varname)
583 char *code_rate = var_InheritString (obj, varname);
584 if (code_rate == NULL)
588 int v = sscanf (code_rate, "%"SCNu16"/%"SCNu16, &a, &b);
593 return VLC_FEC(a, b);
597 /* Backward compatibility with VLC < 1.2 (= Linux DVBv3 enum) */
600 msg_Warn (obj, "\"%s=%"PRIu16"\" option is obsolete. "
601 "Use \"%s=%"PRIu16"/%"PRIu16"\" instead.",
602 varname + 4, a, varname + 4, a, a + 1);
603 return VLC_FEC(a, a + 1);
606 msg_Warn (obj, "\"fec=9\" option is obsolete.");
611 static int modcmp (const void *a, const void *b)
613 return strcasecmp (a, *(const char *const *)b);
616 static const char *var_InheritModulation (vlc_object_t *obj)
618 char *mod = var_InheritString (obj, "dvb-modulation");
622 size_t n = sizeof (modulation_vlc) / sizeof (modulation_vlc[0]);
623 const char *const *p = lfind (mod, modulation_vlc, &n, sizeof (mod), modcmp);
630 /* Backward compatibility with VLC < 1.2 */
634 case -1: str = "QPSK"; break;
635 case 0: str = "QAM"; break;
636 case 8: str = "8VSB"; break;
637 case 16: str = "16QAM"; break;
638 case 32: str = "32QAM"; break;
639 case 64: str = "64QAM"; break;
640 case 128: str = "128QAM"; break;
641 case 256: str = "256QAM"; break;
645 msg_Warn (obj, "\"modulation=%s\" option is obsolete. "
646 "Use \"modulation=%s\" instead.", mod, str);
651 static unsigned var_InheritGuardInterval (vlc_object_t *obj)
653 char *guard = var_InheritString (obj, "dvb-guard");
655 return VLC_GUARD_AUTO;
658 int v = sscanf (guard, "%"SCNu16"/%"SCNu16, &a, &b);
663 /* Backward compatibility with VLC < 1.2 */
666 msg_Warn (obj, "\"guard=%"PRIu16"\" option is obsolete. "
667 "Use \"guard=1/%"PRIu16" instead.", a, a);
671 return VLC_GUARD(a, b);
673 return VLC_GUARD_AUTO;
678 static int atsc_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
680 const char *mod = var_InheritModulation (obj);
682 return dvb_set_atsc (dev, freq, mod);
685 const delsys_t atsc = { .setup = atsc_setup };
687 static int cqam_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
689 const char *mod = var_InheritModulation (obj);
691 return dvb_set_cqam (dev, freq, mod);
694 const delsys_t cqam = { .setup = cqam_setup };
698 static int dvbc_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
700 const char *mod = var_InheritModulation (obj);
701 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
702 unsigned srate = var_InheritInteger (obj, "dvb-srate");
704 return dvb_set_dvbc (dev, freq, mod, srate, fec);
707 const delsys_t dvbc = { .setup = dvbc_setup };
711 static char var_InheritPolarization (vlc_object_t *obj)
714 char *polstr = var_InheritString (obj, "dvb-polarization");
719 if (unlikely(pol >= 'a' && pol <= 'z'))
724 /* Backward compatibility with VLC for Linux < 1.2 */
725 unsigned voltage = var_InheritInteger (obj, "dvb-voltage");
728 case 13: pol = 'V'; break;
729 case 18: pol = 'H'; break;
733 msg_Warn (obj, "\"voltage=%u\" option is obsolete. "
734 "Use \"polarization=%c\" instead.", voltage, pol);
738 static int sec_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
740 char pol = var_InheritPolarization (obj);
741 unsigned lowf = var_InheritInteger (obj, "dvb-lnb-low");
742 unsigned highf = var_InheritInteger (obj, "dvb-lnb-high");
743 unsigned switchf = var_InheritInteger (obj, "dvb-lnb-switch");
745 return dvb_set_sec (dev, freq, pol, lowf, highf, switchf);
748 static int dvbs_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
750 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
751 uint32_t srate = var_InheritInteger (obj, "dvb-srate");
753 int ret = dvb_set_dvbs (dev, freq, srate, fec);
755 ret = sec_setup (obj, dev, freq);
759 static int dvbs2_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
761 const char *mod = var_InheritModulation (obj);
762 uint32_t fec = var_InheritCodeRate (obj, "dvb-fec");
763 uint32_t srate = var_InheritInteger (obj, "dvb-srate");
764 int pilot = var_InheritInteger (obj, "dvb-pilot");
765 int rolloff = var_InheritInteger (obj, "dvb-rolloff");
767 int ret = dvb_set_dvbs2 (dev, freq, mod, srate, fec, pilot, rolloff);
769 ret = sec_setup (obj, dev, freq);
773 const delsys_t dvbs = { .setup = dvbs_setup };
774 const delsys_t dvbs2 = { .setup = dvbs2_setup };
778 static int dvbt_setup (vlc_object_t *obj, dvb_device_t *dev, unsigned freq)
780 const char *mod = var_InheritModulation (obj);
781 uint32_t fec_hp = var_InheritCodeRate (obj, "dvb-code-rate-hp");
782 uint32_t fec_lp = var_InheritCodeRate (obj, "dvb-code-rate-lp");
783 uint32_t guard = var_InheritGuardInterval (obj);
784 uint32_t bw = var_InheritInteger (obj, "dvb-bandwidth");
785 int tx = var_InheritInteger (obj, "dvb-transmission");
786 int h = var_InheritInteger (obj, "dvb-hierarchy");
788 return dvb_set_dvbt (dev, freq, mod, fec_hp, fec_lp, bw, tx, guard, h);
791 const delsys_t dvbt = { .setup = dvbt_setup };