… | |
… | |
8 | #include <linux/dvb/dmx.h> |
8 | #include <linux/dvb/dmx.h> |
9 | |
9 | |
10 | #define CONST(name) { #name, name } |
10 | #define CONST(name) { #name, name } |
11 | |
11 | |
12 | enum { |
12 | enum { |
13 | SCT_PAT = 0x00, |
13 | SCT_PAT = 0x00, |
14 | SCT_CAT = 0x01, |
14 | SCT_CAT = 0x01, |
15 | SCT_PMT = 0x02, |
15 | SCT_PMT = 0x02, |
16 | SCT_TSDT = 0x03, |
16 | SCT_TSDT = 0x03, |
17 | SCT_NIT = 0x40,//TODO |
17 | SCT_NIT = 0x40,//TODO |
18 | SCT_NIT_OTHER = 0x41, |
18 | SCT_NIT_OTHER = 0x41, |
19 | SCT_SDT = 0x42, |
19 | SCT_SDT = 0x42, |
20 | SCT_SDT_OTHER = 0x46, |
20 | SCT_SDT_OTHER = 0x46, |
21 | SCT_BAT = 0x4a,//TODO |
21 | SCT_BAT = 0x4a,//TODO |
22 | SCT_EIT_PRESENT = 0x4e, |
22 | SCT_EIT_PRESENT = 0x4e, |
23 | SCT_EIT_PRESENT_OTHER = 0x4f, |
23 | SCT_EIT_PRESENT_OTHER = 0x4f, |
24 | SCT_EIT_SCHEDULE0 = 0x50, |
24 | SCT_EIT_SCHEDULE0 = 0x50, |
25 | SCT_EIT_SCHEDULE15 = 0x5f, |
25 | SCT_EIT_SCHEDULE15 = 0x5f, |
26 | SCT_EIT_SCHEDULE_OTHER0 = 0x60, |
26 | SCT_EIT_SCHEDULE_OTHER0 = 0x60, |
27 | SCT_EIT_SCHEDULE_OTHER15 = 0x6f, |
27 | SCT_EIT_SCHEDULE_OTHER15 = 0x6f, |
28 | SCT_TDT = 0x70, |
28 | SCT_TDT = 0x70, |
29 | SCT_RST = 0x71, |
29 | SCT_RST = 0x71, |
30 | SCT_ST = 0x72, |
30 | SCT_ST = 0x72, |
31 | SCT_TOT = 0x73, |
31 | SCT_TOT = 0x73, |
32 | SCT_RNT = 0x74, |
32 | SCT_RNT = 0x74, |
33 | SCT_CST = 0x75, |
33 | SCT_CST = 0x75, |
34 | SCT_RCT = 0x76, |
34 | SCT_RCT = 0x76, |
35 | SCT_CIT = 0x77, |
35 | SCT_CIT = 0x77, |
36 | SCT_MPE = 0x78, |
36 | SCT_MPE = 0x78, |
37 | SCT_DIT = 0x7e, |
37 | SCT_DIT = 0x7e, |
38 | SCT_SIT = 0x7f, |
38 | SCT_SIT = 0x7f, |
39 | }; |
39 | }; |
40 | |
40 | |
41 | enum { |
41 | enum { |
|
|
42 | DT_network_name = 0x40, |
|
|
43 | DT_service_list = 0x41, |
|
|
44 | DT_satellite_delivery_system = 0x43, |
|
|
45 | DT_cable_delivery_system = 0x44, |
42 | DT_service = 0x48, |
46 | DT_service = 0x48, |
43 | DT_country_availability = 0x49, |
47 | DT_country_availability = 0x49, |
44 | DT_linkage = 0x4a, |
48 | DT_linkage = 0x4a, |
45 | DT_short_event = 0x4d, |
49 | DT_short_event = 0x4d, |
46 | DT_extended_event = 0x4e, //NYI |
50 | DT_extended_event = 0x4e, //NYI |
47 | DT_component = 0x50, |
51 | DT_component = 0x50, |
48 | DT_content = 0x54, |
52 | DT_content = 0x54, |
|
|
53 | DT_terrestrial_delivery_system = 0x5A, |
49 | DT_private_data_specifier = 0x5f, |
54 | DT_private_data_specifier = 0x5f, |
50 | DT_short_smoothing_buffer = 0x61, //NYI |
55 | DT_short_smoothing_buffer = 0x61, //NYI |
51 | DT_scrambling_indicator = 0x65, //NYI |
56 | DT_scrambling_indicator = 0x65, //NYI |
52 | DT_PDC = 0x69, |
57 | DT_PDC = 0x69, |
53 | }; |
58 | }; |
54 | |
59 | |
55 | static const struct consts { |
60 | static const struct consts { |
56 | const char *name; |
61 | const char *name; |
57 | const long value; |
62 | const long value; |
… | |
… | |
224 | CONST (SCT_CIT), |
229 | CONST (SCT_CIT), |
225 | CONST (SCT_MPE), |
230 | CONST (SCT_MPE), |
226 | CONST (SCT_DIT), |
231 | CONST (SCT_DIT), |
227 | CONST (SCT_SIT), |
232 | CONST (SCT_SIT), |
228 | |
233 | |
|
|
234 | CONST (DT_network_name), |
|
|
235 | CONST (DT_service_list), |
|
|
236 | CONST (DT_satellite_delivery_system), |
|
|
237 | CONST (DT_cable_delivery_system), |
229 | CONST (DT_service), |
238 | CONST (DT_service), |
230 | CONST (DT_country_availability), |
239 | CONST (DT_country_availability), |
231 | CONST (DT_linkage), |
240 | CONST (DT_linkage), |
232 | CONST (DT_short_event), |
241 | CONST (DT_short_event), |
233 | CONST (DT_extended_event), |
242 | CONST (DT_extended_event), |
234 | CONST (DT_component), |
243 | CONST (DT_component), |
235 | CONST (DT_content), |
244 | CONST (DT_content), |
|
|
245 | CONST (DT_terrestrial_delivery_system), |
236 | CONST (DT_private_data_specifier), |
246 | CONST (DT_private_data_specifier), |
237 | CONST (DT_short_smoothing_buffer), |
247 | CONST (DT_short_smoothing_buffer), |
238 | CONST (DT_scrambling_indicator), |
248 | CONST (DT_scrambling_indicator), |
239 | CONST (DT_PDC), |
249 | CONST (DT_PDC), |
240 | }; |
250 | }; |
… | |
… | |
242 | #define HVS_S(hv,struct,member) hv_store (hv, #member, sizeof (#member) - 1, newSVpv (struct.member, 0), 0) |
252 | #define HVS_S(hv,struct,member) hv_store (hv, #member, sizeof (#member) - 1, newSVpv (struct.member, 0), 0) |
243 | #define HVS_I(hv,struct,member) hv_store (hv, #member, sizeof (#member) - 1, newSViv (struct.member), 0) |
253 | #define HVS_I(hv,struct,member) hv_store (hv, #member, sizeof (#member) - 1, newSViv (struct.member), 0) |
244 | #define HVS(hv,name,sv) hv_store (hv, #name, sizeof (#name) - 1, (sv), 0) |
254 | #define HVS(hv,name,sv) hv_store (hv, #name, sizeof (#name) - 1, (sv), 0) |
245 | |
255 | |
246 | static void |
256 | static void |
247 | set_parameters (HV *hv, struct dvb_frontend_parameters *p, fe_type_t type) |
257 | get_parameters (HV *hv, struct dvb_frontend_parameters *p, fe_type_t type) |
248 | { |
258 | { |
249 | HVS_I (hv, (*p), frequency); |
259 | HVS_I (hv, (*p), frequency); |
250 | HVS_I (hv, (*p), inversion); |
260 | HVS_I (hv, (*p), inversion); |
251 | |
261 | |
252 | switch (type) |
262 | switch (type) |
… | |
… | |
270 | HVS_I (hv, (*p).u.ofdm, transmission_mode); |
280 | HVS_I (hv, (*p).u.ofdm, transmission_mode); |
271 | break; |
281 | break; |
272 | } |
282 | } |
273 | } |
283 | } |
274 | |
284 | |
|
|
285 | #define HVF_I(hv,struct,member) \ |
|
|
286 | if (v = hv_fetch (hv, #member, sizeof (#member) - 1, 0)) \ |
|
|
287 | struct.member = SvIV (*v); \ |
|
|
288 | else \ |
|
|
289 | croak ("required hash key '%s' not specified", #member); |
|
|
290 | |
|
|
291 | static void |
|
|
292 | set_parameters (HV *hv, struct dvb_frontend_parameters *p, fe_type_t type) |
|
|
293 | { |
|
|
294 | SV **v; |
|
|
295 | |
|
|
296 | HVF_I (hv, (*p), frequency); |
|
|
297 | HVF_I (hv, (*p), inversion); |
|
|
298 | |
|
|
299 | switch (type) |
|
|
300 | { |
|
|
301 | case FE_QPSK: |
|
|
302 | HVF_I (hv, (*p).u.qpsk, symbol_rate); |
|
|
303 | HVF_I (hv, (*p).u.qpsk, fec_inner); |
|
|
304 | break; |
|
|
305 | |
|
|
306 | case FE_QAM: |
|
|
307 | HVF_I (hv, (*p).u.qam, symbol_rate); |
|
|
308 | HVF_I (hv, (*p).u.qam, fec_inner); |
|
|
309 | HVF_I (hv, (*p).u.qam, modulation); |
|
|
310 | break; |
|
|
311 | |
|
|
312 | case FE_OFDM: |
|
|
313 | HVF_I (hv, (*p).u.ofdm, bandwidth); |
|
|
314 | HVF_I (hv, (*p).u.ofdm, code_rate_HP); |
|
|
315 | HVF_I (hv, (*p).u.ofdm, code_rate_LP); |
|
|
316 | HVF_I (hv, (*p).u.ofdm, constellation); |
|
|
317 | HVF_I (hv, (*p).u.ofdm, transmission_mode); |
|
|
318 | break; |
|
|
319 | } |
|
|
320 | } |
|
|
321 | |
275 | typedef unsigned char u8; |
322 | typedef unsigned char u8; |
276 | |
323 | |
277 | static SV *dec_sv; |
324 | static SV *dec_sv; |
278 | static u8 *dec_data; |
325 | static u8 *dec_data; |
279 | static long dec_ofs, dec_len8; |
326 | static long dec_ofs, dec_len8; |
… | |
… | |
287 | { |
334 | { |
288 | if (dec_sv) |
335 | if (dec_sv) |
289 | SvREFCNT_dec (dec_sv); |
336 | SvREFCNT_dec (dec_sv); |
290 | |
337 | |
291 | dec_sv = newSVsv (data); |
338 | dec_sv = newSVsv (data); |
292 | dec_data = SvPVbyte (dec_sv, dec_len); |
339 | dec_data = (u8 *)SvPVbyte (dec_sv, dec_len); |
293 | dec_ofs = 0; |
340 | dec_ofs = 0; |
294 | dec_len8 = dec_len << 3; |
341 | dec_len8 = dec_len << 3; |
295 | } |
342 | } |
296 | |
343 | |
297 | static U32 |
344 | static U32 |
… | |
… | |
325 | } |
372 | } |
326 | |
373 | |
327 | return dec_field = r; |
374 | return dec_field = r; |
328 | } |
375 | } |
329 | |
376 | |
|
|
377 | U32 |
|
|
378 | clamp (U32 len) |
|
|
379 | { |
|
|
380 | return len < 4096 |
|
|
381 | && len <= dec_len8 - (dec_ofs >> 3) + 1 /* +1 to detect overflows */ |
|
|
382 | ? len : 0; |
|
|
383 | } |
|
|
384 | |
|
|
385 | /* works on SvPOK strings ONLY */ |
|
|
386 | void |
|
|
387 | safe_sv_chop (SV *sv, STRLEN count) |
|
|
388 | { |
|
|
389 | if ((U32)count >= (U32)SvCUR (sv)) |
|
|
390 | SvCUR_set (sv, 0); |
|
|
391 | else |
|
|
392 | sv_chop (sv, SvPVX (sv) + count); |
|
|
393 | } |
|
|
394 | |
|
|
395 | U32 |
|
|
396 | bcd_to_int (U32 bcd_number) |
|
|
397 | { |
|
|
398 | U32 result = 0; |
|
|
399 | U32 multiplicator = 1; |
|
|
400 | |
|
|
401 | while (bcd_number != 0) |
|
|
402 | { |
|
|
403 | result += (bcd_number & 0x0f) * multiplicator; |
|
|
404 | bcd_number >>= 4; |
|
|
405 | multiplicator *= 10; |
|
|
406 | } |
|
|
407 | |
|
|
408 | return result; |
|
|
409 | } |
|
|
410 | |
330 | static SV * |
411 | static SV * |
331 | text2sv (u8 *data, U32 len) |
412 | text2sv (u8 *data, U32 len) |
332 | { |
413 | { |
333 | dSP; |
414 | dSP; |
334 | SV *sv = newSVpvn (data, len); |
415 | SV *sv = newSVpvn ((char *)data, clamp (len)); |
335 | |
416 | |
336 | PUSHMARK (SP); |
417 | PUSHMARK (SP); |
337 | XPUSHs (sv); |
418 | XPUSHs (sv); |
338 | PUTBACK; |
419 | PUTBACK; |
339 | call_pv ("Linux::DVB::Decode::text", G_VOID); |
420 | call_pv ("Linux::DVB::Decode::text", G_VOID); |
340 | |
421 | |
341 | return sv; |
422 | return sv; |
342 | } |
423 | } |
343 | |
424 | |
344 | #define DEC_I(hv, bits, name) HVS (hv, name, newSViv (decode_field (bits))) |
425 | #define DEC_I(hv, bits, name) HVS (hv, name, newSViv (decode_field (bits))) |
345 | #define DEC_T(hv, bytes, name) HVS (hv, name, text2sv (dec_data + (dec_ofs >> 3), (bytes))), dec_ofs += (bytes) << 3 |
426 | #define DEC_T(hv, bytes, name) HVS (hv, name, text2sv (dec_data + (dec_ofs >> 3), clamp (bytes))), dec_ofs += clamp (bytes) << 3 |
346 | #define DEC_S(hv, bytes, name) HVS (hv, name, newSVpvn (dec_data + (dec_ofs >> 3), (bytes))), dec_ofs += (bytes) << 3 |
427 | #define DEC_S(hv, bytes, name) HVS (hv, name, newSVpvn ((char *)dec_data + (dec_ofs >> 3), clamp (bytes))), dec_ofs += clamp (bytes) << 3 |
347 | |
428 | |
348 | static AV * |
429 | static AV * |
349 | decode_descriptors (long end) |
430 | decode_descriptors (long end) |
350 | { |
431 | { |
351 | AV *av = newAV (); |
432 | AV *av = newAV (); |
… | |
… | |
367 | if (end > dec_len8) |
448 | if (end > dec_len8) |
368 | return av; |
449 | return av; |
369 | |
450 | |
370 | switch (type) |
451 | switch (type) |
371 | { |
452 | { |
|
|
453 | case DT_network_name: |
|
|
454 | DEC_T (hv, (end - dec_ofs) >> 3, network_name); |
|
|
455 | break; |
|
|
456 | |
|
|
457 | case DT_service_list: |
|
|
458 | { |
|
|
459 | AV *services = newAV (); |
|
|
460 | HVS (hv, services, newRV_noinc ((SV *)services)); |
|
|
461 | |
|
|
462 | while (dec_ofs < end) |
|
|
463 | { |
|
|
464 | HV *sv = newHV (); |
|
|
465 | av_push (services, newRV_noinc ((SV *)sv)); |
|
|
466 | |
|
|
467 | DEC_I (sv, 16, service_id); |
|
|
468 | DEC_I (sv, 8, service_type); |
|
|
469 | |
|
|
470 | } |
|
|
471 | } |
|
|
472 | |
|
|
473 | break; |
|
|
474 | |
|
|
475 | case DT_satellite_delivery_system: |
|
|
476 | HVS (hv, frequency, newSVuv (bcd_to_int (decode_field (32)))); |
|
|
477 | HVS (hv, orbital_position, newSVnv (bcd_to_int (decode_field (32)) / 10)); |
|
|
478 | DEC_I (hv, 1, west_east_flag); |
|
|
479 | DEC_I (hv, 2, polarization); |
|
|
480 | DEC_I (hv, 5, modulation); |
|
|
481 | HVS (hv, symbol_rate, newSVuv (bcd_to_int (decode_field (28)))); |
|
|
482 | DEC_I (hv, 4, fec_inner); |
|
|
483 | break; |
|
|
484 | |
|
|
485 | case DT_cable_delivery_system: |
|
|
486 | { |
|
|
487 | I16 qam_modulation = -1; |
|
|
488 | |
|
|
489 | HVS (hv, frequency, newSVuv (bcd_to_int (decode_field (32)))); |
|
|
490 | decode_field (12); // reserved |
|
|
491 | DEC_I (hv, 4, fec_outer); |
|
|
492 | |
|
|
493 | DEC_I (hv, 8, modulation); |
|
|
494 | |
|
|
495 | if (dec_field >= 1 && dec_field <= 5) |
|
|
496 | qam_modulation = 1 << dec_field + 3; |
|
|
497 | |
|
|
498 | HVS (hv, modulation_qam, newSViv (qam_modulation)); |
|
|
499 | |
|
|
500 | HVS (hv, symbol_rate, newSVuv (bcd_to_int (decode_field (28)))); |
|
|
501 | DEC_I (hv, 4, fec_inner); |
|
|
502 | |
|
|
503 | break; |
|
|
504 | } |
|
|
505 | |
372 | case DT_service: |
506 | case DT_service: |
373 | DEC_I (hv, 8, service_type); |
507 | DEC_I (hv, 8, service_type); |
374 | len2 = decode_field (8); DEC_T (hv, len2, service_provider_name); |
508 | len2 = decode_field (8); DEC_T (hv, len2, service_provider_name); |
375 | len2 = decode_field (8); DEC_T (hv, len2, service_name); |
509 | len2 = decode_field (8); DEC_T (hv, len2, service_name); |
376 | break; |
510 | break; |
… | |
… | |
448 | |
582 | |
449 | len2 = decode_field (8); DEC_T (hv, len2, text); |
583 | len2 = decode_field (8); DEC_T (hv, len2, text); |
450 | break; |
584 | break; |
451 | |
585 | |
452 | case DT_content: |
586 | case DT_content: |
453 | DEC_S (hv, len, content); |
587 | av2 = newAV (); |
|
|
588 | HVS (hv, items, newRV_noinc ((SV *)av2)); |
|
|
589 | |
|
|
590 | while (dec_ofs < end) |
|
|
591 | { |
|
|
592 | HV *ev = newHV (); |
|
|
593 | |
|
|
594 | DEC_I (ev, 4, content_nibble_level_1); |
|
|
595 | DEC_I (ev, 4, content_nibble_level_2); |
|
|
596 | DEC_I (ev, 4, user_nibble_1); |
|
|
597 | DEC_I (ev, 4, user_nibble_2); |
|
|
598 | |
|
|
599 | av_push (av2, newRV_noinc ((SV *)ev)); |
|
|
600 | } |
|
|
601 | |
454 | break; |
602 | break; |
|
|
603 | |
|
|
604 | case DT_terrestrial_delivery_system: |
|
|
605 | { |
|
|
606 | I8 bandwidth_mhz = -1; |
|
|
607 | |
|
|
608 | HVS (hv, centre_frequency, newSVuv (decode_field (32) * 10)); |
|
|
609 | |
|
|
610 | DEC_I (hv, 3, bandwidth); |
|
|
611 | |
|
|
612 | if (dec_field <= 3) |
|
|
613 | bandwidth_mhz = 8 - dec_field; |
|
|
614 | |
|
|
615 | HVS (hv, bandwidth_mhz, newSViv (bandwidth_mhz)); |
|
|
616 | |
|
|
617 | DEC_I (hv, 1, priority); |
|
|
618 | DEC_I (hv, 1, time_slicing_indicator); |
|
|
619 | DEC_I (hv, 1, mpe_fec_indicator); |
|
|
620 | decode_field (2); // reserved |
|
|
621 | DEC_I (hv, 2, constellation); |
|
|
622 | DEC_I (hv, 3, hierarchy_information); |
|
|
623 | DEC_I (hv, 3, code_rate_hp_stream); |
|
|
624 | DEC_I (hv, 3, code_rate_lp_stream); |
|
|
625 | DEC_I (hv, 2, guard_interval); |
|
|
626 | DEC_I (hv, 2, transmission_mode); |
|
|
627 | DEC_I (hv, 1, other_frequency_use); |
|
|
628 | decode_field (32); |
|
|
629 | } |
|
|
630 | break; |
455 | |
631 | |
456 | case DT_private_data_specifier: |
632 | case DT_private_data_specifier: |
457 | DEC_I (hv, 32, private_data_specifier); |
633 | DEC_I (hv, 32, private_data_specifier); |
458 | break; |
634 | break; |
459 | |
635 | |
460 | default: |
636 | default: |
461 | fprintf (stderr, "UNKXXX %x\n", type);//D |
637 | //fprintf (stderr, "UNKXXX %x\n", type);//D |
|
|
638 | |
462 | case 0: |
639 | case 0: |
463 | case 0x80: |
640 | case 0x80: |
464 | case 0x81: |
641 | case 0x81: |
465 | case 0x82: |
642 | case 0x82: |
466 | case 0x83: |
643 | case 0x83: |
… | |
… | |
580 | |
757 | |
581 | RETVAL = ubl; |
758 | RETVAL = ubl; |
582 | OUTPUT: |
759 | OUTPUT: |
583 | RETVAL |
760 | RETVAL |
584 | |
761 | |
|
|
762 | int |
|
|
763 | _set (int fd, SV *parameters, int type) |
|
|
764 | CODE: |
|
|
765 | struct dvb_frontend_parameters p; |
|
|
766 | |
|
|
767 | if (!SvROK (parameters) || SvTYPE (SvRV (parameters)) != SVt_PVHV) |
|
|
768 | croak ("Linux::DVB::Frontend::set requires a hash as argument"); |
|
|
769 | |
|
|
770 | set_parameters ((HV *)SvRV (parameters), &p, type); |
|
|
771 | |
|
|
772 | if (ioctl (fd, FE_SET_FRONTEND, &p) < 0) |
|
|
773 | XSRETURN_UNDEF; |
|
|
774 | |
|
|
775 | RETVAL = 1; |
|
|
776 | OUTPUT: |
|
|
777 | RETVAL |
|
|
778 | |
585 | SV * |
779 | SV * |
586 | _get (int fd, int type) |
780 | _get (int fd, int type) |
587 | CODE: |
781 | CODE: |
588 | struct dvb_frontend_parameters p; |
782 | struct dvb_frontend_parameters p; |
589 | HV *hv; |
783 | HV *hv; |
590 | |
784 | |
591 | if (ioctl (fd, FE_GET_FRONTEND, &p) < 0) |
785 | if (ioctl (fd, FE_GET_FRONTEND, &p) < 0) |
592 | XSRETURN_UNDEF; |
786 | XSRETURN_UNDEF; |
593 | |
787 | |
594 | hv = newHV (); |
788 | hv = newHV (); |
595 | set_parameters (hv, &p, type); |
789 | get_parameters (hv, &p, type); |
596 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
790 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
597 | OUTPUT: |
791 | OUTPUT: |
598 | RETVAL |
792 | RETVAL |
599 | |
793 | |
600 | SV * |
794 | SV * |
… | |
… | |
606 | if (ioctl (fd, FE_GET_EVENT, &e) < 0) |
800 | if (ioctl (fd, FE_GET_EVENT, &e) < 0) |
607 | XSRETURN_UNDEF; |
801 | XSRETURN_UNDEF; |
608 | |
802 | |
609 | hv = newHV (); |
803 | hv = newHV (); |
610 | HVS_I (hv, e, status); |
804 | HVS_I (hv, e, status); |
611 | set_parameters (hv, &e.parameters, type); |
805 | get_parameters (hv, &e.parameters, type); |
612 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
806 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
613 | OUTPUT: |
807 | OUTPUT: |
614 | RETVAL |
808 | RETVAL |
615 | |
809 | |
616 | MODULE = Linux::DVB PACKAGE = Linux::DVB::Demux |
810 | MODULE = Linux::DVB PACKAGE = Linux::DVB::Demux |
… | |
… | |
677 | RETVAL |
871 | RETVAL |
678 | |
872 | |
679 | MODULE = Linux::DVB PACKAGE = Linux::DVB::Decode PREFIX = decode_ |
873 | MODULE = Linux::DVB PACKAGE = Linux::DVB::Decode PREFIX = decode_ |
680 | |
874 | |
681 | void |
875 | void |
682 | set (SV *data) |
876 | decode_set (SV *data) |
683 | CODE: |
877 | CODE: |
684 | |
878 | |
685 | int |
879 | int |
686 | len () |
880 | decode_len () |
687 | CODE: |
881 | CODE: |
688 | RETVAL = (dec_ofs + 7) >> 3; |
882 | RETVAL = (dec_ofs + 7) >> 3; |
689 | OUTPUT: |
883 | OUTPUT: |
690 | RETVAL |
884 | RETVAL |
691 | |
885 | |
692 | U32 |
886 | U32 |
693 | field (int bits) |
887 | decode_field (int bits) |
694 | |
888 | |
695 | SV * |
889 | SV * |
696 | si (SV *stream) |
890 | decode_si (SV *stream) |
697 | CODE: |
891 | CODE: |
698 | HV *hv = newHV (); |
892 | HV *hv = newHV (); |
699 | |
893 | |
|
|
894 | int syntax_indicator; |
700 | U8 table_id; |
895 | U8 table_id; |
701 | U16 length; |
896 | U16 length; |
702 | long end; |
897 | long end; |
703 | |
898 | |
704 | decode_set (stream); |
899 | decode_set (stream); |
… | |
… | |
706 | do { |
901 | do { |
707 | DEC_I (hv, 8, table_id); |
902 | DEC_I (hv, 8, table_id); |
708 | table_id = dec_field; |
903 | table_id = dec_field; |
709 | } while (table_id == 0xff); |
904 | } while (table_id == 0xff); |
710 | |
905 | |
711 | DEC_I (hv, 1, section_syntax_indicator); |
906 | syntax_indicator = decode_field (1); |
|
|
907 | HVS (hv, section_syntax_indicator, newSViv (syntax_indicator)); |
|
|
908 | |
712 | decode_field (1); |
909 | decode_field (1); |
713 | decode_field (2); |
910 | decode_field (2); |
714 | |
911 | |
715 | length = decode_field (12); |
912 | length = decode_field (12); |
716 | end = dec_ofs + (length << 3); |
913 | end = dec_ofs + (length << 3); |
717 | |
914 | |
|
|
915 | if (syntax_indicator) |
|
|
916 | { |
718 | switch (table_id) |
917 | switch (table_id) |
719 | { |
918 | { |
|
|
919 | case SCT_NIT: |
|
|
920 | { |
|
|
921 | U16 descriptor_end_offset; |
|
|
922 | |
|
|
923 | DEC_I (hv, 16, network_id); |
|
|
924 | decode_field (2); // reserved |
|
|
925 | DEC_I (hv, 5, version_number); |
|
|
926 | DEC_I (hv, 1, current_next_indicator); |
|
|
927 | DEC_I (hv, 8, section_number); |
|
|
928 | DEC_I (hv, 8, last_section_number); |
|
|
929 | decode_field (4); // reserved |
|
|
930 | |
|
|
931 | AV *desc; |
|
|
932 | descriptor_end_offset = dec_ofs + (decode_field (12) << 3); |
|
|
933 | desc = decode_descriptors (descriptor_end_offset); |
|
|
934 | HVS (hv,network_descriptors, newRV_noinc ((SV *)desc)); |
|
|
935 | |
|
|
936 | decode_field (4); //reserved |
|
|
937 | decode_field (12); // Skip length, we read until the end |
|
|
938 | |
|
|
939 | AV *events = newAV (); |
|
|
940 | HVS (hv, events, newRV_noinc ((SV *)events)); |
|
|
941 | while (end - dec_ofs > 32) |
|
|
942 | { |
|
|
943 | long dll; |
|
|
944 | HV *ev = newHV (); |
|
|
945 | av_push (events, newRV_noinc ((SV *)ev)); |
|
|
946 | |
|
|
947 | DEC_I (ev, 16, transport_stream_id); |
|
|
948 | DEC_I (ev, 16, original_network_id); |
|
|
949 | decode_field (4); |
|
|
950 | |
|
|
951 | dll = dec_ofs + (decode_field (12) << 3); |
|
|
952 | desc = decode_descriptors (dll); |
|
|
953 | HVS (ev, descriptors, newRV_noinc ((SV *)desc)); |
|
|
954 | } |
|
|
955 | |
|
|
956 | decode_field (32); // skip CRC |
|
|
957 | } |
|
|
958 | |
|
|
959 | break; |
|
|
960 | |
720 | case SCT_EIT_PRESENT: |
961 | case SCT_EIT_PRESENT: |
721 | case SCT_EIT_PRESENT_OTHER: |
962 | case SCT_EIT_PRESENT_OTHER: |
722 | case SCT_EIT_SCHEDULE0...SCT_EIT_SCHEDULE15: //GCC |
963 | case SCT_EIT_SCHEDULE0...SCT_EIT_SCHEDULE15: //GCC |
723 | case SCT_EIT_SCHEDULE_OTHER0...SCT_EIT_SCHEDULE_OTHER15: //GCC |
964 | case SCT_EIT_SCHEDULE_OTHER0...SCT_EIT_SCHEDULE_OTHER15: //GCC |
724 | DEC_I (hv, 16, service_id); |
|
|
725 | decode_field (2); |
|
|
726 | DEC_I (hv, 5, version_number); |
|
|
727 | DEC_I (hv, 1, current_next_indicator); |
|
|
728 | DEC_I (hv, 8, section_number); |
|
|
729 | DEC_I (hv, 8, last_section_number); |
|
|
730 | DEC_I (hv, 16, transport_stream_id); |
|
|
731 | DEC_I (hv, 16, original_network_id); |
|
|
732 | DEC_I (hv, 8, segment_last_section_number); |
|
|
733 | DEC_I (hv, 8, last_table_id); |
|
|
734 | |
|
|
735 | AV *events = newAV (); |
|
|
736 | HVS (hv, events, newRV_noinc ((SV *)events)); |
|
|
737 | |
|
|
738 | while (end - dec_ofs > 32) |
|
|
739 | { |
|
|
740 | long dll; |
|
|
741 | AV *desc; |
|
|
742 | HV *ev = newHV (); |
|
|
743 | av_push (events, newRV_noinc ((SV *)ev)); |
|
|
744 | |
|
|
745 | DEC_I (ev, 16, event_id); |
|
|
746 | DEC_I (ev, 16, start_time_mjd); |
|
|
747 | DEC_I (ev, 24, start_time_hms); |
|
|
748 | DEC_I (ev, 24, duration); |
|
|
749 | DEC_I (ev, 3, running_status); |
|
|
750 | DEC_I (ev, 1, free_CA_mode); |
|
|
751 | |
|
|
752 | dll = dec_ofs + (decode_field (12) << 3); |
|
|
753 | |
|
|
754 | desc = decode_descriptors (dll); |
|
|
755 | HVS (ev, descriptors, newRV_noinc ((SV *)desc)); |
|
|
756 | } |
|
|
757 | |
|
|
758 | decode_field (32); // skip CRC |
|
|
759 | |
|
|
760 | break; |
|
|
761 | |
|
|
762 | case SCT_SDT: |
|
|
763 | case SCT_SDT_OTHER: |
|
|
764 | DEC_I (hv, 16, transport_stream_id); |
|
|
765 | decode_field (2); |
|
|
766 | DEC_I (hv, 5, version_number); |
|
|
767 | DEC_I (hv, 1, current_next_indicator); |
|
|
768 | DEC_I (hv, 8, section_number); |
|
|
769 | DEC_I (hv, 8, last_section_number); |
|
|
770 | DEC_I (hv, 16, original_network_id); |
|
|
771 | decode_field (8); |
|
|
772 | |
|
|
773 | AV *services = newAV (); |
|
|
774 | HVS (hv, services, newRV_noinc ((SV *)services)); |
|
|
775 | |
|
|
776 | while (end - dec_ofs > 32) |
|
|
777 | { |
|
|
778 | HV *ev = newHV (); |
|
|
779 | U32 dll; |
|
|
780 | AV *desc; |
|
|
781 | av_push (services, newRV_noinc ((SV *)ev)); |
|
|
782 | |
|
|
783 | DEC_I (ev, 16, service_id); |
965 | DEC_I (hv, 16, service_id); |
784 | decode_field (6); |
966 | decode_field (2); |
785 | DEC_I (ev, 1, EIT_schedule_flags); |
967 | DEC_I (hv, 5, version_number); |
786 | DEC_I (ev, 1, EIT_present_following_flag); |
968 | DEC_I (hv, 1, current_next_indicator); |
|
|
969 | DEC_I (hv, 8, section_number); |
|
|
970 | DEC_I (hv, 8, last_section_number); |
|
|
971 | DEC_I (hv, 16, transport_stream_id); |
|
|
972 | DEC_I (hv, 16, original_network_id); |
|
|
973 | DEC_I (hv, 8, segment_last_section_number); |
|
|
974 | DEC_I (hv, 8, last_table_id); |
|
|
975 | |
|
|
976 | AV *events = newAV (); |
|
|
977 | HVS (hv, events, newRV_noinc ((SV *)events)); |
|
|
978 | |
|
|
979 | while (end - dec_ofs > 32) |
|
|
980 | { |
|
|
981 | long dll; |
|
|
982 | AV *desc; |
|
|
983 | HV *ev = newHV (); |
|
|
984 | av_push (events, newRV_noinc ((SV *)ev)); |
|
|
985 | |
|
|
986 | DEC_I (ev, 16, event_id); |
|
|
987 | DEC_I (ev, 16, start_time_mjd); |
|
|
988 | DEC_I (ev, 24, start_time_hms); |
|
|
989 | DEC_I (ev, 24, duration); |
787 | DEC_I (ev, 3, running_status); |
990 | DEC_I (ev, 3, running_status); |
788 | DEC_I (ev, 1, free_CA_mode); |
991 | DEC_I (ev, 1, free_CA_mode); |
789 | |
992 | |
790 | dll = dec_ofs + (decode_field (12) << 3); |
993 | dll = dec_ofs + (decode_field (12) << 3); |
791 | |
994 | |
792 | desc = decode_descriptors (dll); |
995 | desc = decode_descriptors (dll); |
793 | HVS (ev, descriptors, newRV_noinc ((SV *)desc)); |
996 | HVS (ev, descriptors, newRV_noinc ((SV *)desc)); |
794 | } |
997 | } |
795 | |
998 | |
796 | decode_field (32); // skip CRC |
999 | decode_field (32); // skip CRC |
|
|
1000 | |
797 | break; |
1001 | break; |
798 | |
1002 | |
|
|
1003 | case SCT_SDT: |
|
|
1004 | case SCT_SDT_OTHER: |
|
|
1005 | DEC_I (hv, 16, transport_stream_id); |
|
|
1006 | decode_field (2); |
|
|
1007 | DEC_I (hv, 5, version_number); |
|
|
1008 | DEC_I (hv, 1, current_next_indicator); |
|
|
1009 | DEC_I (hv, 8, section_number); |
|
|
1010 | DEC_I (hv, 8, last_section_number); |
|
|
1011 | DEC_I (hv, 16, original_network_id); |
|
|
1012 | decode_field (8); |
|
|
1013 | |
|
|
1014 | AV *services = newAV (); |
|
|
1015 | HVS (hv, services, newRV_noinc ((SV *)services)); |
|
|
1016 | |
|
|
1017 | while (end - dec_ofs > 32) |
|
|
1018 | { |
|
|
1019 | HV *ev = newHV (); |
|
|
1020 | U32 dll; |
|
|
1021 | AV *desc; |
|
|
1022 | av_push (services, newRV_noinc ((SV *)ev)); |
|
|
1023 | |
|
|
1024 | DEC_I (ev, 16, service_id); |
|
|
1025 | decode_field (6); |
|
|
1026 | DEC_I (ev, 1, EIT_schedule_flags); |
|
|
1027 | DEC_I (ev, 1, EIT_present_following_flag); |
|
|
1028 | DEC_I (ev, 3, running_status); |
|
|
1029 | DEC_I (ev, 1, free_CA_mode); |
|
|
1030 | |
|
|
1031 | dll = dec_ofs + (decode_field (12) << 3); |
|
|
1032 | |
|
|
1033 | desc = decode_descriptors (dll); |
|
|
1034 | HVS (ev, descriptors, newRV_noinc ((SV *)desc)); |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | decode_field (32); // skip CRC |
|
|
1038 | break; |
|
|
1039 | |
799 | default: |
1040 | default: |
800 | DEC_S (hv, length, raw_data); |
1041 | DEC_S (hv, length, raw_data); |
801 | break; |
1042 | break; |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | if (decode_overflow) |
|
|
1046 | { |
|
|
1047 | SvREFCNT_dec (hv); |
|
|
1048 | safe_sv_chop (stream, (end + 7) >> 3); |
|
|
1049 | XSRETURN_UNDEF; |
|
|
1050 | } |
|
|
1051 | |
|
|
1052 | safe_sv_chop (stream, (dec_ofs + 7) >> 3); |
802 | } |
1053 | } |
803 | |
1054 | else |
804 | if (decode_overflow) |
|
|
805 | { |
1055 | { |
806 | SvREFCNT_dec (hv); |
1056 | SvREFCNT_dec (hv); |
|
|
1057 | safe_sv_chop (stream, (end + 7) >> 3); |
807 | XSRETURN_UNDEF; |
1058 | XSRETURN_UNDEF; |
808 | } |
1059 | } |
809 | |
1060 | |
810 | sv_chop (stream, SvPVX (stream) + ((dec_ofs + 7) >> 3)); |
|
|
811 | |
|
|
812 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
1061 | RETVAL = (SV *)newRV_noinc ((SV *)hv); |
813 | OUTPUT: |
1062 | OUTPUT: |
814 | RETVAL |
1063 | RETVAL |
815 | |
1064 | |