-
Notifications
You must be signed in to change notification settings - Fork 1
/
export.c
605 lines (540 loc) · 21 KB
/
export.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
/* dvbindex - a program for indexing DVB streams
Copyright (C) 2017 Daniel Kamil Kozar
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "export.h"
#include "util.h"
#include <assert.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <sqlite3.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <dvbpsi/descriptor.h>
#include <dvbpsi/dvbpsi.h>
#include <dvbpsi/nit.h>
#include <dvbpsi/pat.h>
#include <dvbpsi/pmt.h>
#include <dvbpsi/sdt.h>
#include <dvbpsi/dr_0a.h>
#include <dvbpsi/dr_40.h>
#include <dvbpsi/dr_41.h>
#include <dvbpsi/dr_48.h>
#include <dvbpsi/dr_56.h>
#include <dvbpsi/dr_59.h>
#include "column_ids.h"
#include "dvbstring.h"
#include "tables.h"
#define DVBINDEX_SQLITE_APPLICATION_ID 0x12F834B
/* increment this whenever the schema changes */
#define DVBINDEX_USER_VERSION 5
static void start_transaction(sqlite3 *db) {
int rc = sqlite3_exec(db, "BEGIN TRANSACTION", 0, 0, 0);
assert(rc == SQLITE_OK);
}
static void end_transaction(sqlite3 *db) {
int rc = sqlite3_exec(db, "END TRANSACTION", 0, 0, 0);
assert(rc == SQLITE_OK);
}
static const char *type_name(int type) {
switch (type) {
case SQLITE_INTEGER:
return "INT";
case SQLITE_FLOAT:
return "REAL";
case SQLITE_TEXT:
return "TEXT";
case SQLITE_BLOB:
return "BLOB";
}
assert(0 && "unknown type passed to type_name");
return 0;
}
typedef int (*query_build_callback)(char *, size_t,
const dvbindex_table_column_def *);
static int build_query(char *buf, int bufsize, const char *initial,
const dvbindex_table_def *table,
query_build_callback cbk) {
int total_printed = 0;
int printed = snprintf(buf, bufsize, initial, table->name);
bufsize -= printed;
assert(bufsize > 0);
buf += printed;
total_printed += printed;
assert(table->num_columns > 0);
for (size_t i = 0; i < table->num_columns; ++i) {
printed = cbk(buf, bufsize, &table->columns[i]);
bufsize -= printed;
assert(bufsize > 0);
buf += printed;
total_printed += printed;
printed =
snprintf(buf, bufsize, "%c", i + 1 == table->num_columns ? ')' : ',');
bufsize -= printed;
assert(bufsize > 0);
buf += printed;
total_printed += printed;
}
return total_printed;
}
static int print_column_into_create(char *buf, size_t available,
const dvbindex_table_column_def *c) {
return snprintf(buf, available, "%s %s %s", c->name, type_name(c->type),
c->constraints);
}
static int print_asterisk_for_insert(char *buf, size_t available,
const dvbindex_table_column_def *c) {
(void)c;
return snprintf(buf, available, "?");
}
static int create_table(sqlite3 *db, const dvbindex_table_def *table,
char **error) {
char buf[4096];
build_query(buf, sizeof(buf), "CREATE TABLE IF NOT EXISTS %s (", table,
print_column_into_create);
return sqlite3_exec(db, buf, 0, 0, error);
}
static int create_insert_statement(sqlite3 *db, sqlite3_stmt **stmt,
const dvbindex_table_def *table) {
assert(stmt);
char buf[4096];
const char *tail;
(void)tail;
int size = build_query(buf, sizeof(buf), "INSERT INTO %s VALUES (", table,
print_asterisk_for_insert);
int rv = sqlite3_prepare_v2(db, buf, size + 1, stmt, &tail);
assert(*tail == 0);
return rv;
}
static int pragma_result_cbk(void *ctx, int cols, char **vals, char **names) {
assert(cols == 1 && vals[0]);
uint32_t *result = ctx;
int rv = sscanf(vals[0], "%" SCNu32, result);
assert(rv == 1);
return 0;
}
static uint32_t get_pragma_id(sqlite3 *db, const char *pragma) {
uint32_t id;
char *sql = sqlite3_mprintf("PRAGMA %s", pragma);
assert(sql);
int rv = sqlite3_exec(db, sql, pragma_result_cbk, &id, 0);
assert(rv == SQLITE_OK);
sqlite3_free(sql);
return id;
}
static void set_pragma_id(sqlite3 *db, const char *pragma, unsigned int value) {
char *sql = sqlite3_mprintf("PRAGMA %s = %u", pragma, value);
int rv = sqlite3_exec(db, sql, 0, 0, 0);
assert(rv == SQLITE_OK);
sqlite3_free(sql);
}
static int handle_application_id(sqlite3 *db, char **error) {
int rv = SQLITE_OK;
uint32_t appid = get_pragma_id(db, "application_id");
if (appid == 0) {
set_pragma_id(db, "application_id", DVBINDEX_SQLITE_APPLICATION_ID);
} else if (appid != DVBINDEX_SQLITE_APPLICATION_ID) {
rv = SQLITE_FORMAT;
*error = sqlite3_mprintf("Application ID mismatch");
}
return rv;
}
static int check_user_version(sqlite3 *db) {
uint32_t user_version = get_pragma_id(db, "user_version");
if (user_version != DVBINDEX_USER_VERSION) {
set_pragma_id(db, "user_version", DVBINDEX_USER_VERSION);
return 1;
}
return 0;
}
static void drop_table(sqlite3 *db, const dvbindex_table_def *table) {
char *sql = sqlite3_mprintf("DROP TABLE IF EXISTS %s", table->name);
assert(sql);
int rv = sqlite3_exec(db, sql, 0, 0, 0);
assert(rv == SQLITE_OK);
sqlite3_free(sql);
}
static void drop_tables(sqlite3 *db) {
for (dvbindex_table i = 0; i < DVBINDEX_TABLE__LAST; ++i) {
drop_table(db, table_get_def(i));
}
}
static void setup_file_select_stmt(sqlite3 *db, sqlite3_stmt **stmt) {
const char sql[] = "SELECT rowid FROM files WHERE name = ? AND size = ?";
int rv = sqlite3_prepare_v2(db, sql, sizeof(sql), stmt, 0);
assert(rv == SQLITE_OK);
}
int db_export_init(db_export *exp, const char *filename, char **error) {
int rv = sqlite3_open_v2(filename, &exp->db,
SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
SQLITE_OPEN_NOMUTEX | SQLITE_OPEN_PRIVATECACHE,
0);
if (rv != SQLITE_OK) {
goto beach;
}
rv = handle_application_id(exp->db, error);
if (rv != SQLITE_OK) {
goto beach;
}
if (check_user_version(exp->db) != 0) {
drop_tables(exp->db);
}
for (dvbindex_table i = 0; i < DVBINDEX_TABLE__LAST; ++i) {
rv = create_table(exp->db, table_get_def(i), error);
if (rv != SQLITE_OK) {
goto beach;
}
rv = create_insert_statement(exp->db, &exp->insert_stmts[i],
table_get_def(i));
if (rv != SQLITE_OK) {
goto beach;
}
}
setup_file_select_stmt(exp->db, &exp->file_select);
return SQLITE_OK;
beach:
sqlite3_close_v2(exp->db);
return rv;
}
void db_export_close(db_export *exp) {
for (size_t i = 0; i < ARRAY_SIZE(exp->insert_stmts); ++i) {
sqlite3_finalize(exp->insert_stmts[i]);
}
sqlite3_finalize(exp->file_select);
sqlite3_close_v2(exp->db);
}
static void codec_name_to_sql(sqlite3_stmt *stmt, int pos,
enum AVCodecID codec_id) {
const AVCodecDescriptor *cd = avcodec_descriptor_get(codec_id);
if (cd) {
sqlite3_bind_text(stmt, pos, cd->name, -1, SQLITE_STATIC);
} else {
sqlite3_bind_null(stmt, pos);
}
}
static void bind_ffmpeg_int(sqlite3_stmt *stmt, int pos, int64_t val) {
if (val) {
sqlite3_bind_int64(stmt, pos, val);
} else {
sqlite3_bind_null(stmt, pos);
}
}
static void export_video_stream(sqlite3_stmt *stmt, sqlite3_int64 file_rowid,
const AVStream *stream) {
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, VID_STREAM_COLUMN_FILE_ROWID, file_rowid);
sqlite3_bind_int(stmt, VID_STREAM_COLUMN_PID, stream->id);
codec_name_to_sql(stmt, VID_STREAM_COLUMN_FMT, stream->codecpar->codec_id);
bind_ffmpeg_int(stmt, VID_STREAM_COLUMN_WIDTH, stream->codecpar->width);
bind_ffmpeg_int(stmt, VID_STREAM_COLUMN_HEIGHT, stream->codecpar->height);
sqlite3_bind_double(stmt, VID_STREAM_COLUMN_FPS,
stream->avg_frame_rate.num /
(double)stream->avg_frame_rate.den);
bind_ffmpeg_int(stmt, VID_STREAM_COLUMN_BITRATE, stream->codecpar->bit_rate);
sqlite3_step(stmt);
}
static void export_audio_stream(sqlite3_stmt *stmt, sqlite3_int64 file_rowid,
const AVStream *stream) {
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, AUD_STREAM_COLUMN_FILE_ROWID, file_rowid);
sqlite3_bind_int(stmt, AUD_STREAM_COLUMN_PID, stream->id);
codec_name_to_sql(stmt, AUD_STREAM_COLUMN_FMT, stream->codecpar->codec_id);
bind_ffmpeg_int(stmt, AUD_STREAM_COLUMN_CHANNELS, stream->codecpar->channels);
bind_ffmpeg_int(stmt, AUD_STREAM_COLUMN_SAMPLE_RATE,
stream->codecpar->sample_rate);
bind_ffmpeg_int(stmt, AUD_STREAM_COLUMN_BITRATE, stream->codecpar->bit_rate);
sqlite3_step(stmt);
}
void db_export_av_streams(db_export *exp, sqlite3_int64 file_rowid,
unsigned int num_streams, AVStream *const *streams) {
start_transaction(exp->db);
for (unsigned int i = 0; i < num_streams; ++i) {
const AVStream *s = streams[i];
switch (s->codecpar->codec_type) {
case AVMEDIA_TYPE_VIDEO:
export_video_stream(exp->insert_stmts[DVBINDEX_TABLE_VID_STREAMS],
file_rowid, s);
break;
case AVMEDIA_TYPE_AUDIO:
export_audio_stream(exp->insert_stmts[DVBINDEX_TABLE_AUD_STREAMS],
file_rowid, s);
break;
default:
break;
}
}
end_transaction(exp->db);
}
static void export_iso639_descriptor(sqlite3_stmt *stmt,
dvbpsi_descriptor_t *dr,
sqlite3_int64 es_rowid) {
dvbpsi_iso639_dr_t *iso639_dr = dvbpsi_DecodeISO639Dr(dr);
for (uint8_t i = 0; i < iso639_dr->i_code_count; ++i) {
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, LANG_SPEC_COLUMN_ELEM_STREAM_ROWID, es_rowid);
const char *code = (const char *)iso639_dr->code[i].iso_639_code;
sqlite3_bind_text(stmt, LANG_SPEC_COLUMN_LANGUAGE, code,
sizeof(iso639_dr->code[i].iso_639_code),
SQLITE_TRANSIENT);
sqlite3_bind_int(stmt, LANG_SPEC_COLUMN_AUDIO_TYPE,
iso639_dr->code[i].i_audio_type);
sqlite3_step(stmt);
}
}
static void export_teletext_descriptor(sqlite3_stmt *stmt,
dvbpsi_descriptor_t *dr,
sqlite3_int64 es_rowid) {
dvbpsi_teletext_dr_t *teletext = dvbpsi_DecodeTeletextDr(dr);
for (uint8_t i = 0; i < teletext->i_pages_number; ++i) {
dvbpsi_teletextpage_t *page = teletext->p_pages + i;
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, TTX_PAGE_COLUMN_ELEM_STREAM_ROWID, es_rowid);
const char *code = (const char *)page->i_iso6392_language_code;
sqlite3_bind_text(stmt, TTX_PAGE_COLUMN_LANGUAGE, code,
sizeof(page->i_iso6392_language_code), SQLITE_TRANSIENT);
sqlite3_bind_int(stmt, TTX_PAGE_COLUMN_TELETEXT_TYPE,
page->i_teletext_type);
sqlite3_bind_int(stmt, TTX_PAGE_COLUMN_MAGAZINE_NUMBER,
page->i_teletext_magazine_number);
sqlite3_bind_int(stmt, TTX_PAGE_COLUMN_PAGE_NUMBER,
page->i_teletext_page_number);
sqlite3_step(stmt);
}
}
static void export_subtitle_descriptor(sqlite3_stmt *stmt,
dvbpsi_descriptor_t *dr,
sqlite3_int64 es_rowid) {
dvbpsi_subtitling_dr_t *subtitling = dvbpsi_DecodeSubtitlingDr(dr);
for (uint8_t i = 0; i < subtitling->i_subtitles_number; ++i) {
dvbpsi_subtitle_t *subtitle = subtitling->p_subtitle + i;
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, SUBTITLE_CONTENT_COLUMN_ELEM_STREAM_ROWID,
es_rowid);
const char *code = (const char *)subtitle->i_iso6392_language_code;
sqlite3_bind_text(stmt, SUBTITLE_CONTENT_COLUMN_LANGUAGE, code,
sizeof(subtitle->i_iso6392_language_code),
SQLITE_TRANSIENT);
sqlite3_bind_int(stmt, SUBTITLE_CONTENT_COLUMN_SUBTITLE_TYPE,
subtitle->i_subtitling_type);
sqlite3_bind_int(stmt, SUBTITLE_CONTENT_COLUMN_COMPOSITION_PAGE_ID,
subtitle->i_composition_page_id);
sqlite3_bind_int(stmt, SUBTITLE_CONTENT_COLUMN_ANCILLARY_PAGE_ID,
subtitle->i_ancillary_page_id);
sqlite3_step(stmt);
}
}
static void export_pmt_es_descriptors(db_export *exp, sqlite3_int64 es_rowid,
dvbpsi_descriptor_t *dr) {
while (dr) {
switch (dr->i_tag) {
case 0x0a:
export_iso639_descriptor(exp->insert_stmts[DVBINDEX_TABLE_LANG_SPECS], dr,
es_rowid);
break;
/* descriptors 46h and 56h have exactly the same structure, as documented
* in EN 300 468 V1.15.1. */
case 0x46:
case 0x56:
export_teletext_descriptor(exp->insert_stmts[DVBINDEX_TABLE_TTX_PAGES],
dr, es_rowid);
break;
case 0x59:
export_subtitle_descriptor(
exp->insert_stmts[DVBINDEX_TABLE_SUBTITLE_CONTENTS], dr, es_rowid);
break;
}
dr = dr->p_next;
}
}
static void export_pmt_es(db_export *exp, sqlite3_int64 pmt_rowid,
const dvbpsi_pmt_es_t *es) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_ELEM_STREAMS];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, ELEM_STREAM_COLUMN_PMT_ROWID, pmt_rowid);
sqlite3_bind_int(stmt, ELEM_STREAM_COLUMN_TYPE, es->i_type);
sqlite3_bind_int(stmt, ELEM_STREAM_COLUMN_PID, es->i_pid);
sqlite3_step(stmt);
sqlite3_int64 es_rowid = sqlite3_last_insert_rowid(exp->db);
export_pmt_es_descriptors(exp, es_rowid, es->p_first_descriptor);
}
sqlite3_int64 db_export_pat(db_export *exp, sqlite3_int64 file_rowid,
const dvbpsi_pat_t *pat) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_PATS];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, PAT_COLUMN_FILE_ROWID, file_rowid);
sqlite3_bind_int(stmt, PAT_COLUMN_TSID, pat->i_ts_id);
sqlite3_bind_int(stmt, PAT_COLUMN_VERSION, pat->i_version);
sqlite3_step(stmt);
return sqlite3_last_insert_rowid(exp->db);
}
void db_export_pmt(db_export *exp, sqlite3_int64 pat_rowid,
const dvbpsi_pmt_t *pmt) {
start_transaction(exp->db);
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_PMTS];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, PMT_COLUMN_PAT_ROWID, pat_rowid);
sqlite3_bind_int(stmt, PMT_COLUMN_PROGRAM_NUMBER, pmt->i_program_number);
sqlite3_bind_int(stmt, PMT_COLUMN_VERSION, pmt->i_version);
sqlite3_bind_int(stmt, PMT_COLUMN_PCR_PID, pmt->i_pcr_pid);
sqlite3_step(stmt);
sqlite3_int64 pmt_rowid = sqlite3_last_insert_rowid(exp->db);
dvbpsi_pmt_es_t *es = pmt->p_first_es;
while (es) {
export_pmt_es(exp, pmt_rowid, es);
es = es->p_next;
}
end_transaction(exp->db);
}
static void export_sdt_descriptors(sqlite3_stmt *stmt,
dvbpsi_descriptor_t *sdt_dscr) {
while (sdt_dscr) {
switch (sdt_dscr->i_tag) {
case 0x48: {
dvbpsi_service_dr_t *service_dr = dvbpsi_DecodeServiceDr(sdt_dscr);
if (service_dr) {
size_t outlen;
char *str =
dvbstring_to_utf8(service_dr->i_service_name,
service_dr->i_service_name_length, &outlen);
sqlite3_bind_text64(stmt, SERVICE_COLUMN_NAME, str, outlen, free,
SQLITE_UTF8);
str = dvbstring_to_utf8(service_dr->i_service_provider_name,
service_dr->i_service_provider_name_length,
&outlen);
sqlite3_bind_text64(stmt, SERVICE_COLUMN_PROVIDER_NAME, str, outlen,
free, SQLITE_UTF8);
}
} break;
}
sdt_dscr = sdt_dscr->p_next;
}
}
static void export_sdt_service(db_export *exp, sqlite3_int64 sdt_rowid,
const dvbpsi_sdt_service_t *service) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_SERVICES];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, SERVICE_COLUMN_SDT_ROWID, sdt_rowid);
sqlite3_bind_int(stmt, SERVICE_COLUMN_PROGRAM_NUMBER, service->i_service_id);
sqlite3_bind_int(stmt, SERVICE_COLUMN_RUNNING_STATUS,
service->i_running_status);
sqlite3_bind_int(stmt, SERVICE_COLUMN_SCRAMBLED, service->b_free_ca);
sqlite3_bind_null(stmt, SERVICE_COLUMN_NAME);
export_sdt_descriptors(stmt, service->p_first_descriptor);
sqlite3_step(stmt);
}
void db_export_sdt(db_export *exp, sqlite3_int64 pat_rowid,
const dvbpsi_sdt_t *sdt) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_SDTS];
start_transaction(exp->db);
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, SDT_COLUMN_PAT_ROWID, pat_rowid);
sqlite3_bind_int(stmt, SDT_COLUMN_VERSION, sdt->i_version);
sqlite3_bind_int(stmt, SDT_COLUMN_ORIGINAL_NETWORK_ID, sdt->i_network_id);
sqlite3_step(stmt);
sqlite3_int64 sdt_rowid = sqlite3_last_insert_rowid(exp->db);
dvbpsi_sdt_service_t *service = sdt->p_first_service;
while (service) {
export_sdt_service(exp, sdt_rowid, service);
service = service->p_next;
}
end_transaction(exp->db);
}
sqlite3_int64 db_export_file(db_export *exp, const char *path, off_t size) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_FILES];
sqlite3_reset(stmt);
sqlite3_bind_text(stmt, FILE_COLUMN_NAME, file_name_from_path(path), -1,
SQLITE_TRANSIENT);
sqlite3_bind_int64(stmt, FILE_COLUMN_SIZE, size);
sqlite3_step(stmt);
return sqlite3_last_insert_rowid(exp->db);
}
int db_has_file(db_export *exp, const char *path, off_t size) {
sqlite3_bind_text(exp->file_select, 1, file_name_from_path(path), -1,
SQLITE_TRANSIENT);
sqlite3_bind_int64(exp->file_select, 2, size);
int rv = sqlite3_step(exp->file_select);
sqlite3_reset(exp->file_select);
assert(rv == SQLITE_ROW || rv == SQLITE_DONE);
return rv == SQLITE_ROW;
}
static void export_nit_descriptors(sqlite3_stmt *stmt,
dvbpsi_descriptor_t *dr) {
while (dr) {
switch (dr->i_tag) {
case 0x40: {
dvbpsi_network_name_dr_t *netname = dvbpsi_DecodeNetworkNameDr(dr);
if (netname) {
size_t outlen;
char *utf8 = dvbstring_to_utf8(netname->i_name_byte,
netname->i_name_length, &outlen);
sqlite3_bind_text(stmt, NETWORK_COLUMN_NETWORK_NAME, utf8, outlen,
free);
}
break;
}
}
dr = dr->p_next;
}
}
static void export_nit_ts_descriptors(db_export *exp,
sqlite3_int64 nit_ts_rowid,
dvbpsi_descriptor_t *dr) {
while (dr) {
switch (dr->i_tag) {
case 0x41: {
dvbpsi_service_list_dr_t *slist = dvbpsi_DecodeServiceListDr(dr);
if (slist) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_TS_SERVICES];
for (unsigned int i = 0; i < slist->i_service_count; ++i) {
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, TS_SERVICE_COLUMN_TS_ROWID, nit_ts_rowid);
sqlite3_bind_int(stmt, TS_SERVICE_COLUMN_SERVICE_ID,
slist->i_service[i].i_service_id);
sqlite3_bind_int(stmt, TS_SERVICE_COLUMN_SERVICE_TYPE,
slist->i_service[i].i_service_type);
sqlite3_step(stmt);
}
}
}
}
dr = dr->p_next;
}
}
static void export_nit_transport_streams(db_export *exp,
sqlite3_int64 nit_rowid,
dvbpsi_nit_ts_t *ts) {
while (ts) {
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_TRANSPORT_STREAMS];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, TRANSPORT_STREAM_COLUMN_NETWORK_ROWID, nit_rowid);
sqlite3_bind_int(stmt, TRANSPORT_STREAM_COLUMN_TSID, ts->i_ts_id);
sqlite3_bind_int(stmt, TRANSPORT_STREAM_COLUMN_ONID, ts->i_orig_network_id);
sqlite3_step(stmt);
sqlite3_int64 nit_ts_rowid = sqlite3_last_insert_rowid(exp->db);
export_nit_ts_descriptors(exp, nit_ts_rowid, ts->p_first_descriptor);
ts = ts->p_next;
}
}
void db_export_nit(db_export *exp, sqlite3_int64 file_rowid,
const dvbpsi_nit_t *nit) {
start_transaction(exp->db);
sqlite3_stmt *stmt = exp->insert_stmts[DVBINDEX_TABLE_NETWORKS];
sqlite3_reset(stmt);
sqlite3_bind_int64(stmt, NETWORK_COLUMN_FILE_ROWID, file_rowid);
sqlite3_bind_int(stmt, NETWORK_COLUMN_NETWORK_ID, nit->i_network_id);
export_nit_descriptors(stmt, nit->p_first_descriptor);
sqlite3_step(stmt);
sqlite3_int64 nit_rowid = sqlite3_last_insert_rowid(exp->db);
export_nit_transport_streams(exp, nit_rowid, nit->p_first_ts);
end_transaction(exp->db);
}