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
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
|
/* flac - Command-line FLAC encoder/decoder
* Copyright (C) 2000,2001,2002 Josh Coalson
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <ctype.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if !defined _MSC_VER && !defined __MINGW32__
/* unlink is in stdio.h in VC++ */
#include <unistd.h> /* for unlink() */
#else
#define strcasecmp stricmp
#endif
#include "FLAC/all.h"
#include "share/grabbag.h"
#include "analyze.h"
#include "decode.h"
#include "encode.h"
#include "vorbiscomment.h"
#if 0
/*[JEC] was:#if HAVE_GETOPT_LONG*/
/*[JEC] see flac/include/share/getopt.h as to why the change */
# include <getopt.h>
#else
# include "share/getopt.h"
#endif
typedef enum { RAW, WAV, AIF } FileFormat;
static int do_it();
static FLAC__bool init_options();
static int parse_options(int argc, char *argv[]);
static int parse_option(int short_option, const char *long_option, const char *option_argument);
static void free_options();
static int usage_error(const char *message, ...);
static void short_usage();
static void show_version();
static void show_help();
static void show_explain();
static void format_mistake(const char *infilename, const char *wrong, const char *right);
static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
static int decode_file(const char *infilename);
static const char *get_encoded_outfilename(const char *infilename);
static const char *get_decoded_outfilename(const char *infilename);
static void die(const char *message);
static char *local_strdup(const char *source);
/*
* share__getopt format struct; note that for long options with no
* short option equivalent we just set the 'val' field to 0.
*/
static struct share__option long_options_[] = {
/*
* general options
*/
{ "help", 0, 0, 'h' },
{ "explain", 0, 0, 'H' },
{ "version", 0, 0, 'v' },
{ "decode", 0, 0, 'd' },
{ "analyze", 0, 0, 'a' },
{ "test", 0, 0, 't' },
{ "stdout", 0, 0, 'c' },
{ "silent", 0, 0, 's' },
{ "delete-input-file", 0, 0, 0 },
{ "output-prefix", 1, 0, 0 },
{ "output-name", 1, 0, 'o' },
{ "skip", 1, 0, 0 },
/*
* decoding options
*/
{ "decode-through-errors", 0, 0, 'F' },
/*
* encoding options
*/
{ "cuesheet", 1, 0, 0 },
{ "no-cued-seekpoints", 0, 0, 0 },
{ "tag", 1, 0, 'T' },
{ "compression-level-0", 0, 0, '0' },
{ "compression-level-1", 0, 0, '1' },
{ "compression-level-2", 0, 0, '2' },
{ "compression-level-3", 0, 0, '3' },
{ "compression-level-4", 0, 0, '4' },
{ "compression-level-5", 0, 0, '5' },
{ "compression-level-6", 0, 0, '6' },
{ "compression-level-7", 0, 0, '7' },
{ "compression-level-8", 0, 0, '8' },
{ "compression-level-9", 0, 0, '9' },
{ "best", 0, 0, '8' },
{ "fast", 0, 0, '0' },
{ "super-secret-totally-impractical-compression-level", 0, 0, 0 },
{ "verify", 0, 0, 'V' },
{ "force-raw-format", 0, 0, 0 },
{ "lax", 0, 0, 0 },
{ "replay-gain", 0, 0, 0 },
{ "sector-align", 0, 0, 0 },
{ "seekpoint", 1, 0, 'S' },
{ "padding", 1, 0, 'P' },
#ifdef FLAC__HAS_OGG
{ "ogg", 0, 0, 0 },
{ "serial-number", 1, 0, 0 },
#endif
{ "blocksize", 1, 0, 'b' },
{ "exhaustive-model-search", 0, 0, 'e' },
#if 0
/* @@@ deprecated: */
{ "escape-coding", 0, 0, 'E' },
#endif
{ "max-lpc-order", 1, 0, 'l' },
{ "mid-side", 0, 0, 'm' },
{ "adaptive-mid-side", 0, 0, 'M' },
{ "qlp-coeff-precision-search", 0, 0, 'p' },
{ "qlp-coeff-precision", 1, 0, 'q' },
{ "rice-partition-order", 1, 0, 'r' },
#if 0
/* @@@ deprecated: */
{ "rice-parameter-search-distance", 1, 0, 'R' },
#endif
{ "endian", 1, 0, 0 },
{ "channels", 1, 0, 0 },
{ "bps", 1, 0, 0 },
{ "sample-rate", 1, 0, 0 },
{ "sign", 1, 0, 0 },
/*
* analysis options
*/
{ "residual-gnu-plot", 0, 0, 0 },
{ "residual-text", 0, 0, 0 },
/*
* negatives
*/
{ "no-decode-through-errors", 0, 0, 0 },
{ "no-silent", 0, 0, 0 },
{ "no-seektable", 0, 0, 0 },
{ "no-delete-input-file", 0, 0, 0 },
{ "no-replay-gain", 0, 0, 0 },
{ "no-sector-align", 0, 0, 0 },
{ "no-lax", 0, 0, 0 },
#ifdef FLAC__HAS_OGG
{ "no-ogg", 0, 0, 0 },
#endif
{ "no-exhaustive-model-search", 0, 0, 0 },
#if 0
/* @@@ deprecated: */
{ "no-escape-coding", 0, 0, 0 },
#endif
{ "no-mid-side", 0, 0, 0 },
{ "no-adaptive-mid-side", 0, 0, 0 },
{ "no-qlp-coeff-prec-search", 0, 0, 0 },
{ "no-padding", 0, 0, 0 },
{ "no-verify", 0, 0, 0 },
{ "no-residual-gnuplot", 0, 0, 0 },
{ "no-residual-text", 0, 0, 0 },
/*
* undocumented debugging options for the test suite
*/
{ "disable-constant-subframes", 0, 0, 0 },
{ "disable-fixed-subframes", 0, 0, 0 },
{ "disable-verbatim-subframes", 0, 0, 0 },
{0, 0, 0, 0}
};
/*
* global to hold command-line option values
*/
static struct {
FLAC__bool show_help;
FLAC__bool show_explain;
FLAC__bool show_version;
FLAC__bool mode_decode;
FLAC__bool verify;
FLAC__bool verbose;
FLAC__bool continue_through_decode_errors;
FLAC__bool lax;
FLAC__bool test_only;
FLAC__bool analyze;
FLAC__bool use_ogg;
FLAC__bool has_serial_number; /* true iff --serial-number was used */
long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
FLAC__bool do_mid_side;
FLAC__bool loose_mid_side;
FLAC__bool do_exhaustive_model_search;
FLAC__bool do_escape_coding;
FLAC__bool do_qlp_coeff_prec_search;
FLAC__bool force_to_stdout;
FLAC__bool force_raw_format;
FLAC__bool delete_input;
FLAC__bool replay_gain;
FLAC__bool sector_align;
const char *cmdline_forced_outfilename;
const char *output_prefix;
analysis_options aopts;
int padding;
unsigned max_lpc_order;
unsigned qlp_coeff_precision;
FLAC__uint64 skip;
int format_is_big_endian;
int format_is_unsigned_samples;
int format_channels;
int format_bps;
int format_sample_rate;
int blocksize;
int min_residual_partition_order;
int max_residual_partition_order;
int rice_parameter_search_dist;
char requested_seek_points[50000]; /* @@@ bad MAGIC NUMBER but buffer overflow is checked */
int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
const char *cuesheet_filename;
FLAC__bool cued_seekpoints;
unsigned num_files;
char **filenames;
FLAC__StreamMetadata *vorbis_comment;
struct {
FLAC__bool disable_constant_subframes;
FLAC__bool disable_fixed_subframes;
FLAC__bool disable_verbatim_subframes;
} debug;
} option_values;
/*
* miscellaneous globals
*/
static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
int main(int argc, char *argv[])
{
int retval = 0;
setlocale(LC_ALL, "");
if(!init_options()) {
fprintf(stderr, "ERROR: allocating memory\n");
retval = 1;
}
else {
if((retval = parse_options(argc, argv)) == 0)
retval = do_it();
}
free_options();
return retval;
}
int do_it()
{
int retval = 0;
if(option_values.show_version) {
show_version();
return 0;
}
else if(option_values.show_explain) {
show_explain();
return 0;
}
else if(option_values.show_help) {
show_help();
return 0;
}
else {
if(option_values.num_files == 0) {
short_usage();
return 0;
}
/*
* tweak options; validate the values
*/
if(!option_values.mode_decode) {
if(option_values.blocksize < 0) {
if(option_values.max_lpc_order == 0)
option_values.blocksize = 1152;
else
option_values.blocksize = 4608;
}
if(option_values.max_residual_partition_order < 0) {
if(option_values.blocksize <= 1152)
option_values.max_residual_partition_order = 2;
else if(option_values.blocksize <= 2304)
option_values.max_residual_partition_order = 3;
else if(option_values.blocksize <= 4608)
option_values.max_residual_partition_order = 3;
else
option_values.max_residual_partition_order = 4;
option_values.min_residual_partition_order = option_values.max_residual_partition_order;
}
if(option_values.rice_parameter_search_dist < 0) {
option_values.rice_parameter_search_dist = 0;
}
}
else {
if(option_values.test_only) {
if(option_values.skip > 0)
return usage_error("ERROR: --skip is not allowed in test mode\n");
}
}
FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
if(option_values.format_channels >= 0) {
if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
}
if(option_values.format_bps >= 0) {
if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
}
if(option_values.format_sample_rate >= 0) {
if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
}
if(option_values.mode_decode) {
if(!option_values.force_raw_format) {
if(option_values.format_is_big_endian >= 0)
return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
if(option_values.format_is_unsigned_samples >= 0)
return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
}
if(option_values.format_channels >= 0)
return usage_error("ERROR: --channels not allowed with --decode\n");
if(option_values.format_bps >= 0)
return usage_error("ERROR: --bps not allowed with --decode\n");
if(option_values.format_sample_rate >= 0)
return usage_error("ERROR: --sample-rate not allowed with --decode\n");
}
if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
return usage_error("ERROR: invalid blocksize '%u', must be >= %u and <= %u\n", (unsigned)option_values.blocksize, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
}
if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
return usage_error("ERROR: invalid value '%u' for qlp coeff precision, must be 0 or >= %u\n", option_values.qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
}
if(option_values.sector_align) {
if(option_values.mode_decode)
return usage_error("ERROR: --sector-align only allowed for encoding\n");
if(option_values.skip > 0)
return usage_error("ERROR: --sector-align not allowed with --skip\n");
if(option_values.format_channels >= 0 && option_values.format_channels != 2)
return usage_error("ERROR: --sector-align can only be done with stereo input\n");
if(option_values.format_bps >= 0 && option_values.format_bps != 16)
return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
}
if(option_values.replay_gain) {
if(option_values.force_to_stdout)
return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
if(option_values.mode_decode)
return usage_error("ERROR: --replay-gain only allowed for encoding\n");
if(option_values.format_channels > 2)
return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
/*
* We want to reserve padding space for the ReplayGain
* tags that we will set later, to avoid rewriting the
* whole file.
*/
if(option_values.padding < 0) {
fprintf(stderr, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
}
else {
option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
}
}
if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
}
if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
}
if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
}
}
if(option_values.verbose) {
fprintf(stderr, "\n");
fprintf(stderr, "flac %s, Copyright (C) 2000,2001,2002 Josh Coalson\n", FLAC__VERSION_STRING);
fprintf(stderr, "flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are\n");
fprintf(stderr, "welcome to redistribute it under certain conditions. Type `flac' for details.\n\n");
if(!option_values.mode_decode) {
char padopt[16];
if(option_values.padding < 0)
strcpy(padopt, "-");
else
sprintf(padopt, " %d", option_values.padding);
fprintf(stderr,
"options:%s%s%s%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
option_values.delete_input?" --delete-input-file":"",
option_values.sector_align?" --sector-align":"",
option_values.use_ogg?" --ogg":"",
option_values.lax?" --lax":"",
padopt,
(unsigned)option_values.blocksize,
option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
option_values.max_lpc_order,
option_values.do_exhaustive_model_search?" -e":"",
option_values.do_escape_coding?" -E":"",
option_values.do_qlp_coeff_prec_search?" -p":"",
option_values.qlp_coeff_precision,
(unsigned)option_values.min_residual_partition_order,
(unsigned)option_values.max_residual_partition_order,
option_values.verify? " -V":""
);
}
}
if(option_values.mode_decode) {
FLAC__bool first = true;
if(option_values.num_files == 0) {
retval = decode_file("-");
}
else {
unsigned i;
if(option_values.num_files > 1)
option_values.cmdline_forced_outfilename = 0;
for(i = 0, retval = 0; i < option_values.num_files; i++) {
if(0 == strcmp(option_values.filenames[i], "-") && !first)
continue;
retval |= decode_file(option_values.filenames[i]);
first = false;
}
}
}
else { /* encode */
FLAC__bool first = true;
if(option_values.num_files == 0) {
retval = encode_file("-", first, true);
}
else {
unsigned i;
if(option_values.num_files > 1)
option_values.cmdline_forced_outfilename = 0;
for(i = 0, retval = 0; i < option_values.num_files; i++) {
if(0 == strcmp(option_values.filenames[i], "-") && !first)
continue;
retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
first = false;
}
if(option_values.replay_gain && retval == 0) {
float album_gain, album_peak;
grabbag__replaygain_get_album(&album_gain, &album_peak);
for(i = 0; i < option_values.num_files; i++) {
const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
if(0 == strcmp(option_values.filenames[i], "-"))
FLAC__ASSERT(0);
if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
fprintf(stderr, "%s: ERROR writing ReplayGain album tags\n", outfilename);
retval = 1;
}
}
}
}
}
return retval;
}
FLAC__bool init_options()
{
option_values.show_help = false;
option_values.show_explain = false;
option_values.mode_decode = false;
option_values.verify = false;
option_values.verbose = true;
option_values.continue_through_decode_errors = false;
option_values.lax = false;
option_values.test_only = false;
option_values.analyze = false;
option_values.use_ogg = false;
option_values.has_serial_number = false;
option_values.serial_number = 0;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_qlp_coeff_prec_search = false;
option_values.force_to_stdout = false;
option_values.force_raw_format = false;
option_values.delete_input = false;
option_values.replay_gain = false;
option_values.sector_align = false;
option_values.cmdline_forced_outfilename = 0;
option_values.output_prefix = 0;
option_values.aopts.do_residual_text = false;
option_values.aopts.do_residual_gnuplot = false;
option_values.padding = 4096;
option_values.max_lpc_order = 8;
option_values.qlp_coeff_precision = 0;
option_values.skip = 0;
option_values.format_is_big_endian = -1;
option_values.format_is_unsigned_samples = -1;
option_values.format_channels = -1;
option_values.format_bps = -1;
option_values.format_sample_rate = -1;
option_values.blocksize = -1;
option_values.min_residual_partition_order = -1;
option_values.max_residual_partition_order = -1;
option_values.rice_parameter_search_dist = -1;
option_values.requested_seek_points[0] = '\0';
option_values.num_requested_seek_points = -1;
option_values.cuesheet_filename = 0;
option_values.cued_seekpoints = true;
option_values.num_files = 0;
option_values.filenames = 0;
if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
return false;
option_values.debug.disable_constant_subframes = false;
option_values.debug.disable_fixed_subframes = false;
option_values.debug.disable_verbatim_subframes = false;
return true;
}
int parse_options(int argc, char *argv[])
{
int short_option;
int option_index = 1;
FLAC__bool had_error = false;
/*@@@ E and R: are deprecated */
const char *short_opts = "0123456789ab:cdeFhHl:mMo:pP:q:r:sS:tT:vV";
while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
switch (short_option) {
case 0: /* long option with no equivalent short option */
had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
break;
case '?':
case ':':
had_error = true;
break;
default: /* short option */
had_error |= (parse_option(short_option, 0, share__optarg) != 0);
break;
}
}
if(had_error) {
return 1;
}
FLAC__ASSERT(share__optind <= argc);
option_values.num_files = argc - share__optind;
if(option_values.num_files > 0) {
unsigned i = 0;
if(0 == (option_values.filenames = malloc(sizeof(char *) * option_values.num_files)))
die("out of memory allocating space for file names list");
while(share__optind < argc)
option_values.filenames[i++] = local_strdup(argv[share__optind++]);
}
return 0;
}
int parse_option(int short_option, const char *long_option, const char *option_argument)
{
char *p;
if(short_option == 0) {
FLAC__ASSERT(0 != long_option);
if(0 == strcmp(long_option, "delete-input-file")) {
option_values.delete_input = true;
}
else if(0 == strcmp(long_option, "output-prefix")) {
FLAC__ASSERT(0 != option_argument);
option_values.output_prefix = option_argument;
}
else if(0 == strcmp(long_option, "skip")) {
FLAC__ASSERT(0 != option_argument);
option_values.skip = (FLAC__uint64)atoi(option_argument); /* @@@ takes a pretty damn big file to overflow atoi() here, but it could happen */
}
else if(0 == strcmp(long_option, "cuesheet")) {
FLAC__ASSERT(0 != option_argument);
option_values.cuesheet_filename = option_argument;
}
else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
option_values.cued_seekpoints = false;
}
else if(0 == strcmp(long_option, "super-secret-totally-impractical-compression-level")) {
option_values.lax = true;
option_values.do_exhaustive_model_search = true;
option_values.do_escape_coding = true;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.do_qlp_coeff_prec_search = true;
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = 16;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 32;
}
else if(0 == strcmp(long_option, "force-raw-format")) {
option_values.force_raw_format = true;
}
else if(0 == strcmp(long_option, "lax")) {
option_values.lax = true;
}
else if(0 == strcmp(long_option, "replay-gain")) {
option_values.replay_gain = true;
}
else if(0 == strcmp(long_option, "sector-align")) {
option_values.sector_align = true;
}
#ifdef FLAC__HAS_OGG
else if(0 == strcmp(long_option, "ogg")) {
option_values.use_ogg = true;
}
else if(0 == strcmp(long_option, "serial-number")) {
option_values.has_serial_number = true;
option_values.serial_number = atol(option_argument);
}
#endif
else if(0 == strcmp(long_option, "endian")) {
FLAC__ASSERT(0 != option_argument);
if(0 == strncmp(option_argument, "big", strlen(option_argument)))
option_values.format_is_big_endian = true;
else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
option_values.format_is_big_endian = false;
else
return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
}
else if(0 == strcmp(long_option, "channels")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_channels = atoi(option_argument);
}
else if(0 == strcmp(long_option, "bps")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_bps = atoi(option_argument);
}
else if(0 == strcmp(long_option, "sample-rate")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_sample_rate = atoi(option_argument);
}
else if(0 == strcmp(long_option, "sign")) {
FLAC__ASSERT(0 != option_argument);
if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
option_values.format_is_unsigned_samples = false;
else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
option_values.format_is_unsigned_samples = true;
else
return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
}
else if(0 == strcmp(long_option, "residual-gnu-plot")) {
option_values.aopts.do_residual_gnuplot = true;
}
else if(0 == strcmp(long_option, "residual-text")) {
option_values.aopts.do_residual_text = true;
}
/*
* negatives
*/
else if(0 == strcmp(long_option, "no-decode-through-errors")) {
option_values.continue_through_decode_errors = false;
}
else if(0 == strcmp(long_option, "no-silent")) {
option_values.verbose = true;
}
else if(0 == strcmp(long_option, "no-seektable")) {
option_values.num_requested_seek_points = 0;
option_values.requested_seek_points[0] = '\0';
}
else if(0 == strcmp(long_option, "no-delete-input-file")) {
option_values.delete_input = false;
}
else if(0 == strcmp(long_option, "no-replay-gain")) {
option_values.replay_gain = false;
}
else if(0 == strcmp(long_option, "no-sector-align")) {
option_values.sector_align = false;
}
else if(0 == strcmp(long_option, "no-lax")) {
option_values.lax = false;
}
#ifdef FLAC__HAS_OGG
else if(0 == strcmp(long_option, "no-ogg")) {
option_values.use_ogg = false;
}
#endif
else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
option_values.do_exhaustive_model_search = false;
}
#if 0
/* @@@ deprecated: */
else if(0 == strcmp(long_option, "no-escape-coding")) {
option_values.do_escape_coding = false;
}
#endif
else if(0 == strcmp(long_option, "no-mid-side")) {
option_values.do_mid_side = option_values.loose_mid_side = false;
}
else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
option_values.loose_mid_side = option_values.do_mid_side = false;
}
else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
option_values.do_qlp_coeff_prec_search = false;
}
else if(0 == strcmp(long_option, "no-padding")) {
option_values.padding = -1;
}
else if(0 == strcmp(long_option, "no-verify")) {
option_values.verify = false;
}
else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
option_values.aopts.do_residual_gnuplot = false;
}
else if(0 == strcmp(long_option, "no-residual-text")) {
option_values.aopts.do_residual_text = false;
}
else if(0 == strcmp(long_option, "disable-constant-subframes")) {
option_values.debug.disable_constant_subframes = true;
}
else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
option_values.debug.disable_fixed_subframes = true;
}
else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
option_values.debug.disable_verbatim_subframes = true;
}
}
else {
const char *violation;
switch(short_option) {
case 'h':
option_values.show_help = true;
break;
case 'H':
option_values.show_explain = true;
break;
case 'v':
option_values.show_version = true;
break;
case 'd':
option_values.mode_decode = true;
break;
case 'a':
option_values.mode_decode = true;
option_values.analyze = true;
break;
case 't':
option_values.mode_decode = true;
option_values.test_only = true;
break;
case 'c':
option_values.force_to_stdout = true;
break;
case 's':
option_values.verbose = false;
break;
case 'o':
FLAC__ASSERT(0 != option_argument);
option_values.cmdline_forced_outfilename = option_argument;
break;
case 'F':
option_values.continue_through_decode_errors = true;
break;
case 'T':
FLAC__ASSERT(0 != option_argument);
if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, &violation))
return usage_error("ERROR: (-T/--tag) %s\n", violation);
break;
case '0':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = false;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 0;
break;
case '1':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = true;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 0;
break;
case '2':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = 3;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 0;
break;
case '3':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = false;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 6;
break;
case '4':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = true;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 8;
break;
case '5':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 8;
break;
case '6':
option_values.do_exhaustive_model_search = false;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = 4;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 8;
break;
case '7':
option_values.do_exhaustive_model_search = true;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = 6;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 8;
break;
case '8':
option_values.do_exhaustive_model_search = true;
option_values.do_escape_coding = false;
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
option_values.qlp_coeff_precision = 0;
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = 6;
option_values.rice_parameter_search_dist = 0;
option_values.max_lpc_order = 12;
break;
case '9':
return usage_error("ERROR: compression level '9' is reserved\n");
case 'V':
option_values.verify = true;
break;
case 'S':
FLAC__ASSERT(0 != option_argument);
if(option_values.num_requested_seek_points < 0)
option_values.num_requested_seek_points = 0;
option_values.num_requested_seek_points++;
if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
return usage_error("ERROR: too many seekpoints requested\n");
}
else {
strcat(option_values.requested_seek_points, option_argument);
strcat(option_values.requested_seek_points, ";");
}
break;
case 'P':
FLAC__ASSERT(0 != option_argument);
option_values.padding = atoi(option_argument);
if(option_values.padding < 0)
return usage_error("ERROR: argument to -P must be >= 0\n");
break;
case 'b':
FLAC__ASSERT(0 != option_argument);
option_values.blocksize = atoi(option_argument);
break;
case 'e':
option_values.do_exhaustive_model_search = true;
break;
case 'E':
option_values.do_escape_coding = true;
break;
case 'l':
FLAC__ASSERT(0 != option_argument);
option_values.max_lpc_order = atoi(option_argument);
break;
case 'm':
option_values.do_mid_side = true;
option_values.loose_mid_side = false;
break;
case 'M':
option_values.loose_mid_side = option_values.do_mid_side = true;
break;
case 'p':
option_values.do_qlp_coeff_prec_search = true;
break;
case 'q':
FLAC__ASSERT(0 != option_argument);
option_values.qlp_coeff_precision = atoi(option_argument);
break;
case 'r':
FLAC__ASSERT(0 != option_argument);
p = strchr(option_argument, ',');
if(0 == p) {
option_values.min_residual_partition_order = 0;
option_values.max_residual_partition_order = atoi(option_argument);
}
else {
option_values.min_residual_partition_order = atoi(option_argument);
option_values.max_residual_partition_order = atoi(++p);
}
break;
case 'R':
FLAC__ASSERT(0 != option_argument);
option_values.rice_parameter_search_dist = atoi(option_argument);
break;
default:
FLAC__ASSERT(0);
}
}
return 0;
}
void free_options()
{
unsigned i;
if(0 != option_values.filenames) {
for(i = 0; i < option_values.num_files; i++) {
if(0 != option_values.filenames[i])
free(option_values.filenames[i]);
}
free(option_values.filenames);
}
if(0 != option_values.vorbis_comment)
FLAC__metadata_object_delete(option_values.vorbis_comment);
}
int usage_error(const char *message, ...)
{
va_list args;
FLAC__ASSERT(0 != message);
va_start(args, message);
(void) vfprintf(stderr, message, args);
va_end(args);
printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
return 1;
}
void show_version()
{
printf("flac %s\n", FLAC__VERSION_STRING);
}
static void usage_header()
{
printf("===============================================================================\n");
printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
printf("Copyright (C) 2000,2001,2002 Josh Coalson\n");
printf("\n");
printf("This program is free software; you can redistribute it and/or\n");
printf("modify it under the terms of the GNU General Public License\n");
printf("as published by the Free Software Foundation; either version 2\n");
printf("of the License, or (at your option) any later version.\n");
printf("\n");
printf("This program is distributed in the hope that it will be useful,\n");
printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n");
printf("GNU General Public License for more details.\n");
printf("\n");
printf("You should have received a copy of the GNU General Public License\n");
printf("along with this program; if not, write to the Free Software\n");
printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n");
printf("===============================================================================\n");
}
static void usage_summary()
{
printf("Usage:\n");
printf("\n");
printf(" Encoding: flac [-s] [--skip #] [<encoding/format-options>] [INPUTFILE [...]]\n");
printf(" Decoding: flac -d [-s] [--skip #] [-F] [<format-options>] [INPUTFILE [...]]\n");
printf(" Testing: flac -t [-s] [INPUTFILE [...]]\n");
printf("Analyzing: flac -a [-s] [--skip #] [<analysis-options>] [INPUTFILE [...]]\n");
printf("\n");
}
void short_usage()
{
usage_header();
printf("\n");
printf("This is the short help; for all options use 'flac --help'; for even more\n");
printf("instructions use 'flac --explain'\n");
printf("\n");
printf("To encode:\n");
printf(" flac [-#] [INPUTFILE [...]]\n");
printf("\n");
printf(" -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
printf("\n");
printf("To decode:\n");
printf(" flac -d [INPUTFILE [...]]\n");
printf("\n");
printf("To test:\n");
printf(" flac -t [INPUTFILE [...]]\n");
}
void show_help()
{
usage_header();
usage_summary();
printf("generic options:\n");
printf(" -v, --version Show the flac version number\n");
printf(" -h, --help Show this screen\n");
printf(" -H, --explain Show detailed explanation of usage and options\n");
printf(" -d, --decode Decode (the default behavior is to encode)\n");
printf(" -t, --test Same as -d except no decoded file is written\n");
printf(" -a, --analyze Same as -d except an analysis file is written\n");
printf(" -c, --stdout Write output to stdout\n");
printf(" -s, --silent Do not write runtime encode/decode statistics\n");
printf(" -o, --output-name=FILENAME Force the output file name\n");
printf(" --output-prefix=STRING Prepend STRING to output names\n");
printf(" --delete-input-file Deletes after a successful encode/decode\n");
printf(" --skip=# Skip the first # samples of each input file\n");
printf("analysis options:\n");
printf(" --residual-text Include residual signal in text output\n");
printf(" --residual-gnuplot Generate gnuplot files of residual distribution\n");
printf("decoding options:\n");
printf(" -F, --decode-through-errors Continue decoding through stream errors\n");
printf("encoding options:\n");
printf(" -V, --verify Verify a correct encoding\n");
#ifdef FLAC__HAS_OGG
printf(" --ogg Use Ogg as transport layer\n");
printf(" --serial-number Serial number to use for the FLAC stream\n");
#endif
printf(" --lax Allow encoder to generate non-Subset files\n");
printf(" --sector-align Align multiple files on sector boundaries\n");
printf(" --replay-gain Calculate ReplayGain & store in Vorbis comments\n");
printf(" --cuesheet=FILENAME Import cuesheet and store in CUESHEET block\n");
printf(" -T, --tag=FIELD=VALUE Add a Vorbis comment; may appear multiple times\n");
printf(" -S, --seekpoint={#|X|#x|#s} Add seek point(s)\n");
printf(" -P, --padding=# Write a PADDING block of length #\n");
printf(" -0, --compression-level-0, --fast Synonymous with -l 0 -b 1152 -r 2,2\n");
printf(" -1, --compression-level-1 Synonymous with -l 0 -b 1152 -M -r 2,2\n");
printf(" -2, --compression-level-2 Synonymous with -l 0 -b 1152 -m -r 3\n");
printf(" -3, --compression-level-3 Synonymous with -l 6 -b 4608 -r 3,3\n");
printf(" -4, --compression-level-4 Synonymous with -l 8 -b 4608 -M -r 3,3\n");
printf(" -5, --compression-level-5 Synonymous with -l 8 -b 4608 -m -r 3,3\n");
printf(" -6, --compression-level-6 Synonymous with -l 8 -b 4608 -m -r 4\n");
printf(" -7, --compression-level-7 Synonymous with -l 8 -b 4608 -m -e -r 6\n");
printf(" -8, --compression-level-8, --best Synonymous with -l 12 -b 4608 -m -e -r 6\n");
printf(" -b, --blocksize=# Specify blocksize in samples\n");
printf(" -m, --mid-side Try mid-side coding for each frame\n");
printf(" -M, --adaptive-mid-side Adaptive mid-side coding for all frames\n");
printf(" -e, --exhaustive-model-search Do exhaustive model search (expensive!)\n");
#if 0
/*@@@ deprecated: */
printf(" -E, --escape-coding Do escape coding in the entropy coder\n");
#endif
printf(" -l, --max-lpc-order=# Max LPC order; 0 => only fixed predictors\n");
printf(" -p, --qlp-coeff-precision-search Exhaustively search LP coeff quantization\n");
printf(" -q, --qlp-coeff-precision=# Specify precision in bits\n");
printf(" -r, --rice-partition-order=[#,]# Set [min,]max residual partition order\n");
#if 0
/*@@@ deprecated: */
printf(" -R, -rice-parameter-search-distance=# Rice parameter search distance\n");
#endif
printf("format options:\n");
printf(" --endian={big|little} Set byte order for samples\n");
printf(" --channels=# Number of channels\n");
printf(" --bps=# Number of bits per sample\n");
printf(" --sample-rate=# Sample rate in Hz\n");
printf(" --sign={signed|unsigned} Sign of samples\n");
printf(" --force-raw-format Treat input or output as raw samples\n");
printf("negative options:\n");
printf(" --no-adaptive-mid-side\n");
printf(" --no-decode-through-errors\n");
printf(" --no-delete-input-file\n");
#if 0
/* @@@ deprecated: */
printf(" --no-escape-coding\n");
#endif
printf(" --no-exhaustive-model-search\n");
printf(" --no-lax\n");
printf(" --no-mid-side\n");
#ifdef FLAC__HAS_OGG
printf(" --no-ogg\n");
#endif
printf(" --no-padding\n");
printf(" --no-qlp-coeff-prec-search\n");
printf(" --no-replay-gain\n");
printf(" --no-residual-gnuplot\n");
printf(" --no-residual-text\n");
printf(" --no-sector-align\n");
printf(" --no-seektable\n");
printf(" --no-silent\n");
printf(" --no-verify\n");
}
void show_explain()
{
usage_header();
usage_summary();
printf("For encoding:\n");
printf(" The input file(s) may be a PCM RIFF WAVE file, AIFF file, or raw samples.\n");
printf(" The output file(s) will be in native FLAC or Ogg FLAC format\n");
printf("For decoding, the reverse is true.\n");
printf("\n");
printf("A single INPUTFILE may be - for stdin. No INPUTFILE implies stdin. Use of\n");
printf("stdin implies -c (write to stdout). Normally you should use:\n");
printf(" flac [options] -o outfilename or flac -d [options] -o outfilename\n");
printf("instead of:\n");
printf(" flac [options] > outfilename or flac -d [options] > outfilename\n");
printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
printf("WAVE/AIFF header contents when necessary.\n");
printf("\n");
printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
printf("treat an input file as AIFF/WAVE format or raw samples. If any input file is\n");
printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
printf("apply to all raw files. You can force AIFF/WAVE files to be treated as raw\n");
printf("files using -fr.\n");
printf("\n");
printf("generic options:\n");
printf(" -v, --version Show the flac version number\n");
printf(" -h, --help Show basic usage a list of all options\n");
printf(" -H, --explain Show this screen\n");
printf(" -d, --decode Decode (the default behavior is to encode)\n");
printf(" -t, --test Same as -d except no decoded file is written\n");
printf(" -a, --analyze Same as -d except an analysis file is written\n");
printf(" -c, --stdout Write output to stdout\n");
printf(" -s, --silent Do not write runtime encode/decode statistics\n");
printf(" -o, --output-name=FILENAME Force the output file name; usually flac just\n");
printf(" changes the extension. May only be used when\n");
printf(" encoding a single file. May not be used in\n");
printf(" conjunction with --output-prefix.\n");
printf(" --output-prefix=STRING Prefix each output file name with the given\n");
printf(" STRING. This can be useful for encoding or\n");
printf(" decoding files to a different directory. Make\n");
printf(" sure if your STRING is a path name that it ends\n");
printf(" with a '/' slash.\n");
printf(" --delete-input-file Automatically delete the input file after a\n");
printf(" successful encode or decode. If there was an\n");
printf(" error (including a verify error) the input file\n");
printf(" is left intact.\n");
printf(" --skip=# Skip the first # samples of each input file; can\n");
printf(" be used both for encoding and decoding\n");
printf("analysis options:\n");
printf(" --residual-text Include residual signal in text output. This\n");
printf(" will make the file very big, much larger than\n");
printf(" even the decoded file.\n");
printf(" --residual-gnuplot Generate gnuplot files of residual distribution\n");
printf(" of each subframe\n");
printf("decoding options:\n");
printf(" -F, --decode-through-errors By default flac stops decoding with an error\n");
printf(" and removes the partially decoded file if it\n");
printf(" encounters a bitstream error. With -F, errors\n");
printf(" are still printed but flac will continue\n");
printf(" decoding to completion. Note that errors may\n");
printf(" cause the decoded audio to be missing some\n");
printf(" samples or have silent sections.\n");
printf("encoding options:\n");
printf(" -V, --verify Verify a correct encoding by decoding the\n");
printf(" output in parallel and comparing to the\n");
printf(" original\n");
#ifdef FLAC__HAS_OGG
printf(" --ogg When encoding, generate Ogg-FLAC output instead\n");
printf(" of native-FLAC. Ogg-FLAC streams are FLAC\n");
printf(" streams wrapped in an Ogg transport layer. The\n");
printf(" resulting file should have an '.ogg' extension\n");
printf(" and will still be decodable by flac. When\n");
printf(" decoding, force the input to be treated as\n");
printf(" Ogg-FLAC. This is useful when piping input\n");
printf(" from stdin or when the filename does not end in\n");
printf(" '.ogg'.\n");
printf(" --serial-number Serial number to use for the FLAC stream. When\n");
printf(" encoding and no serial number is given, flac\n");
printf(" uses '0'. When decoding and no number is\n");
printf(" given, flac uses the serial number of the first\n");
printf(" page.\n");
#endif
printf(" --lax Allow encoder to generate non-Subset files\n");
printf(" --sector-align Align encoding of multiple CD format WAVE files\n");
printf(" on sector boundaries.\n");
printf(" --replay-gain Calculate ReplayGain values and store in Vorbis\n");
printf(" comments. Title gains/peaks will be computed\n");
printf(" for each file, and an album gain/peak will be\n");
printf(" computed for all files. All input files must\n");
printf(" have the same resolution, sample rate, and\n");
printf(" number of channels. The sample rate must be\n");
printf(" one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
printf(" or 48 kHz. NOTE: this option may also leave a\n");
printf(" few extra bytes in the PADDING block.\n");
printf(" --cuesheet=FILENAME Import the given cuesheet file and store it in\n");
printf(" a CUESHEET metadata block. This option may only\n");
printf(" be used when encoding a single file. A\n");
printf(" seekpoint will be added for each index point in\n");
printf(" the cuesheet to the SEEKTABLE unless\n");
printf(" --no-cued-seekpoints is specified.\n");
printf(" -T, --tag=FIELD=VALUE Add a Vorbis comment. Make sure to quote the\n");
printf(" comment if necessary. This option may appear\n");
printf(" more than once to add several comments. NOTE:\n");
printf(" all tags will be added to all encoded files.\n");
printf(" -S, --seekpoint={#|X|#x|#s} Include a point or points in a SEEKTABLE\n");
printf(" # : a specific sample number for a seek point\n");
printf(" X : a placeholder point (always goes at the end of the SEEKTABLE)\n");
printf(" #x : # evenly spaced seekpoints, the first being at sample 0\n");
printf(" #s : a seekpoint every # seconds; # does not have to be a whole number\n");
printf(" You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
printf(" ified union of all such values.\n");
printf(" With no -S options, flac defaults to '-S 100x'. Use -S- for no SEEKTABLE.\n");
printf(" Note: -S #x and -S #s will not work if the encoder can't determine the\n");
printf(" input size before starting.\n");
printf(" Note: if you use -S # and # is >= samples in the input, there will be\n");
printf(" either no seek point entered (if the input size is determinable\n");
printf(" before encoding starts) or a placeholder point (if input size is not\n");
printf(" determinable)\n");
printf(" -P, --padding=# Tell the encoder to write a PADDING metadata\n");
printf(" block of the given length (in bytes) after the\n");
printf(" STREAMINFO block. This is useful if you plan\n");
printf(" to tag the file later with an APPLICATION\n");
printf(" block; instead of having to rewrite the entire\n");
printf(" file later just to insert your block, you can\n");
printf(" write directly over the PADDING block. Note\n");
printf(" that the total length of the PADDING block will\n");
printf(" be 4 bytes longer than the length given because\n");
printf(" of the 4 metadata block header bytes. You can\n");
printf(" force no PADDING block at all to be written with\n");
printf(" --no-padding, which is the default.\n");
printf(" -b, --blocksize=# Specify the blocksize in samples; the default is\n");
printf(" 1152 for -l 0, else 4608; must be one of 192,\n");
printf(" 576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
printf(" 4096, 8192, 16384, or 32768 (unless --lax is\n");
printf(" used)\n");
printf(" -0, --compression-level-0, --fast Synonymous with -l 0 -b 1152 -r 2,2\n");
printf(" -1, --compression-level-1 Synonymous with -l 0 -b 1152 -M -r 2,2\n");
printf(" -2, --compression-level-2 Synonymous with -l 0 -b 1152 -m -r 3\n");
printf(" -3, --compression-level-3 Synonymous with -l 6 -b 4608 -r 3,3\n");
printf(" -4, --compression-level-4 Synonymous with -l 8 -b 4608 -M -r 3,3\n");
printf(" -5, --compression-level-5 Synonymous with -l 8 -b 4608 -m -r 3,3\n");
printf(" -5 is the default setting\n");
printf(" -6, --compression-level-6 Synonymous with -l 8 -b 4608 -m -r 4\n");
printf(" -7, --compression-level-7 Synonymous with -l 8 -b 4608 -m -e -r 6\n");
printf(" -8, --compression-level-8, --best Synonymous with -l 12 -b 4608 -m -e -r 6\n");
printf(" -m, --mid-side Try mid-side coding for each frame\n");
printf(" (stereo only)\n");
printf(" -M, --adaptive-mid-side Adaptive mid-side coding for all frames\n");
printf(" (stereo only)\n");
printf(" -e, --exhaustive-model-search Do exhaustive model search (expensive!)\n");
#if 0
/*@@@ deprecated: */
printf(" -E, --escape-coding Do escape coding in the entropy coder.\n");
printf(" This causes the encoder to use an\n");
printf(" unencoded representation of the residual\n");
printf(" in a partition if it is smaller. It\n");
printf(" increases the runtime and usually results\n");
printf(" in an improvement of less than 1%.\n");
#endif
printf(" -l, --max-lpc-order=# Max LPC order; 0 => only fixed predictors\n");
printf(" -p, --qlp-coeff-precision-search Do exhaustive search of LP coefficient\n");
printf(" quantization (expensive!); overrides -q;\n");
printf(" does nothing if using -l 0\n");
printf(" -q, --qlp-coeff-precision=# Specify precision in bits of quantized\n");
printf(" linear-predictor coefficients; 0 => let\n");
printf(" encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
printf(" default is -q 0)\n");
printf(" -r, --rice-partition-order=[#,]# Set [min,]max residual partition order\n");
printf(" (# is 0..16; min defaults to 0; the\n");
printf(" default is -r 0; above 4 doesn't usually\n");
printf(" help much)\n");
#if 0
/*@@@ deprecated: */
printf(" -R, -rice-parameter-search-distance=# Rice parameter search distance\n");
#endif
printf("format options:\n");
printf(" --endian={big|little} Set byte order for samples\n");
printf(" --channels=# Number of channels\n");
printf(" --bps=# Number of bits per sample\n");
printf(" --sample-rate=# Sample rate in Hz\n");
printf(" --sign={signed|unsigned} Sign of samples (the default is signed)\n");
printf(" --force-raw-format Force input (when encoding) or output (when\n");
printf(" decoding) to be treated as raw samples\n");
printf("negative options:\n");
printf(" --no-adaptive-mid-side\n");
printf(" --no-decode-through-errors\n");
printf(" --no-delete-input-file\n");
#if 0
/* @@@ deprecated: */
printf(" --no-escape-coding\n");
#endif
printf(" --no-exhaustive-model-search\n");
printf(" --no-lax\n");
printf(" --no-mid-side\n");
#ifdef FLAC__HAS_OGG
printf(" --no-ogg\n");
#endif
printf(" --no-padding\n");
printf(" --no-qlp-coeff-prec-search\n");
printf(" --no-residual-gnuplot\n");
printf(" --no-residual-text\n");
printf(" --no-sector-align\n");
printf(" --no-seektable\n");
printf(" --no-silent\n");
printf(" --no-verify\n");
}
void
format_mistake(const char *infilename, const char *wrong, const char *right)
{
fprintf(stderr, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
}
int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
{
FILE *encode_infile;
FLAC__byte lookahead[12];
unsigned lookahead_length = 0;
FileFormat fmt= RAW;
int retval;
long infilesize;
encode_options_t common_options;
const char *outfilename = get_encoded_outfilename(infilename);
if(0 == strcmp(infilename, "-")) {
infilesize = -1;
encode_infile = grabbag__file_get_binary_stdin();
}
else {
infilesize = grabbag__file_get_filesize(infilename);
if(0 == (encode_infile = fopen(infilename, "rb"))) {
fprintf(stderr, "ERROR: can't open input file %s\n", infilename);
return 1;
}
}
if(!option_values.force_raw_format) {
/* first set format based on name */
if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
fmt= WAV;
else if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".aif"))
fmt= AIF;
else if(strlen(infilename) > 4 && 0 == strcasecmp(infilename+(strlen(infilename)-5), ".aiff"))
fmt= AIF;
/* attempt to guess the file type based on the first 12 bytes */
if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
if(fmt != RAW)
format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
fmt= RAW;
}
else {
if(!strncmp(lookahead, "RIFF", 4) && !strncmp(lookahead+8, "WAVE", 4))
fmt= WAV;
else if(!strncmp(lookahead, "FORM", 4) && !strncmp(lookahead+8, "AIFF", 4))
fmt= AIF;
else {
if(fmt != RAW)
format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
fmt= RAW;
}
}
}
if(option_values.sector_align && fmt == RAW && infilesize < 0) {
fprintf(stderr, "ERROR: can't --sector-align when the input size is unknown\n");
return 1;
}
if(fmt == RAW) {
if(option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0)
return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
}
if(encode_infile == stdin || option_values.force_to_stdout) {
if(option_values.replay_gain)
return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
}
common_options.verbose = option_values.verbose;
common_options.skip = option_values.skip;
common_options.verify = option_values.verify;
#ifdef FLAC__HAS_OGG
common_options.use_ogg = option_values.use_ogg;
common_options.has_serial_number = option_values.has_serial_number;
common_options.serial_number = option_values.serial_number;
#endif
common_options.lax = option_values.lax;
common_options.do_mid_side = option_values.do_mid_side;
common_options.loose_mid_side = option_values.loose_mid_side;
common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
common_options.do_escape_coding = option_values.do_escape_coding;
common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
common_options.min_residual_partition_order = option_values.min_residual_partition_order;
common_options.max_residual_partition_order = option_values.max_residual_partition_order;
common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
common_options.max_lpc_order = option_values.max_lpc_order;
common_options.blocksize = (unsigned)option_values.blocksize;
common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
common_options.padding = option_values.padding;
common_options.requested_seek_points = option_values.requested_seek_points;
common_options.num_requested_seek_points = option_values.num_requested_seek_points;
common_options.cuesheet_filename = option_values.cuesheet_filename;
common_options.cued_seekpoints = option_values.cued_seekpoints;
common_options.is_first_file = is_first_file;
common_options.is_last_file = is_last_file;
common_options.align_reservoir = align_reservoir;
common_options.align_reservoir_samples = &align_reservoir_samples;
common_options.replay_gain = option_values.replay_gain;
common_options.sector_align = option_values.sector_align;
common_options.vorbis_comment = option_values.vorbis_comment;
common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
if(fmt == RAW) {
raw_encode_options_t options;
options.common = common_options;
options.is_big_endian = option_values.format_is_big_endian;
options.is_unsigned_samples = option_values.format_is_unsigned_samples;
options.channels = option_values.format_channels;
options.bps = option_values.format_bps;
options.sample_rate = option_values.format_sample_rate;
retval = flac__encode_raw(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
}
else {
wav_encode_options_t options;
options.common = common_options;
if(fmt == AIF)
retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
else
retval = flac__encode_wav(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
}
if(retval == 0 && strcmp(infilename, "-")) {
if(strcmp(outfilename, "-")) {
if(option_values.replay_gain) {
float title_gain, title_peak;
const char *error;
grabbag__replaygain_get_title(&title_gain, &title_peak);
if(0 != (error = grabbag__replaygain_store_to_file_title(outfilename, title_gain, title_peak, /*preserve_modtime=*/true))) {
fprintf(stderr, "%s: ERROR writing ReplayGain title tags\n", outfilename);
}
}
grabbag__file_copy_metadata(infilename, outfilename);
}
if(option_values.delete_input)
unlink(infilename);
}
return retval;
}
int decode_file(const char *infilename)
{
int retval;
FLAC__bool treat_as_ogg = false;
decode_options_t common_options;
const char *outfilename = get_decoded_outfilename(infilename);
if(!option_values.test_only && !option_values.analyze) {
if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
}
if(option_values.use_ogg)
treat_as_ogg = true;
else if(0 == strcasecmp(infilename+(strlen(infilename)-4), ".ogg"))
treat_as_ogg = true;
else
treat_as_ogg = false;
#ifndef FLAC__HAS_OGG
if(treat_as_ogg) {
fprintf(stderr, "%s: Ogg support has not been built into this copy of flac\n", infilename);
return 1;
}
#endif
common_options.verbose = option_values.verbose;
common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
#ifdef FLAC__HAS_OGG
common_options.is_ogg = treat_as_ogg;
common_options.use_first_serial_number = !option_values.has_serial_number;
common_options.serial_number = option_values.serial_number;
#endif
common_options.skip = option_values.skip;
if(!option_values.force_raw_format) {
wav_decode_options_t options;
options.common = common_options;
retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
}
else {
raw_decode_options_t options;
options.common = common_options;
options.is_big_endian = option_values.format_is_big_endian;
options.is_unsigned_samples = option_values.format_is_unsigned_samples;
retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
}
if(retval == 0 && strcmp(infilename, "-")) {
if(strcmp(outfilename, "-"))
grabbag__file_copy_metadata(infilename, outfilename);
if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
unlink(infilename);
}
return retval;
}
const char *get_encoded_outfilename(const char *infilename)
{
if(0 == option_values.cmdline_forced_outfilename) {
static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
strcpy(buffer, "-");
}
else {
const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
char *p;
strcpy(buffer, option_values.output_prefix? option_values.output_prefix : "");
strcat(buffer, infilename);
if(0 == (p = strrchr(buffer, '.')))
strcat(buffer, suffix);
else {
if(0 == strcmp(p, suffix)) {
strcpy(p, "_new");
strcat(p, suffix);
}
else
strcpy(p, suffix);
}
}
return buffer;
}
else
return option_values.cmdline_forced_outfilename;
}
const char *get_decoded_outfilename(const char *infilename)
{
if(0 == option_values.cmdline_forced_outfilename) {
static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
strcpy(buffer, "-");
}
else {
static const char *suffixes[] = { ".wav", ".raw", ".ana" };
const char *suffix = suffixes[option_values.analyze? 2 : option_values.force_raw_format? 1 : 0];
char *p;
strcpy(buffer, option_values.output_prefix? option_values.output_prefix : "");
strcat(buffer, infilename);
if(0 == (p = strrchr(buffer, '.')))
strcat(buffer, suffix);
else {
if(0 == strcmp(p, suffix)) {
strcpy(p, "_new");
strcat(p, suffix);
}
else
strcpy(p, suffix);
}
}
return buffer;
}
else
return option_values.cmdline_forced_outfilename;
}
void die(const char *message)
{
FLAC__ASSERT(0 != message);
fprintf(stderr, "ERROR: %s\n", message);
exit(1);
}
char *local_strdup(const char *source)
{
char *ret;
FLAC__ASSERT(0 != source);
if(0 == (ret = strdup(source)))
die("out of memory during strdup()");
return ret;
}
|