update the usage to match new getopt-based options, simply the help structure
[flac.git] / src / flac / main.c
1 /* flac - Command-line FLAC encoder/decoder
2  * Copyright (C) 2000,2001,2002  Josh Coalson
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
17  */
18
19 #include <ctype.h>
20 #include <stdarg.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #if !defined _MSC_VER && !defined __MINGW32__
25 /* unlink is in stdio.h in VC++ */
26 #include <unistd.h> /* for unlink() */
27 #else
28 #define strcasecmp stricmp
29 #endif
30 #include "FLAC/all.h"
31 #include "analyze.h"
32 #include "decode.h"
33 #include "encode.h"
34 #include "file.h"
35
36 #if 0
37 /*[JEC] was:#if HAVE_GETOPT_LONG*/
38 /*[JEC] see flac/include/share/getopt.h as to why the change */
39 #  include <getopt.h>
40 #else
41 #  include "share/getopt.h"
42 #endif
43
44 typedef enum { RAW, WAV, AIF } FileFormat;
45
46 static int do_it();
47
48 static void init_options();
49 static int parse_options(int argc, char *argv[]);
50 static int parse_option(int short_option, const char *long_option, const char *option_argument);
51 static void free_options();
52
53 static int usage_error(const char *message, ...);
54 static void short_usage();
55 static void show_help();
56 static void show_explain();
57 static void format_mistake(const char *infilename, const char *wrong, const char *right);
58
59 static int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file);
60 static int decode_file(const char *infilename, const char *forced_outfilename);
61
62 static void die(const char *message);
63 static char *local_strdup(const char *source);
64
65
66 /*
67  * FLAC__share__getopt format struct; note that for long options with no
68  * short option equivalent we just set the 'val' field to 0.
69  */
70 static struct FLAC__share__option long_options_[] = {
71         /*
72          * general options
73          */
74         { "help", 0, 0, 'h' },
75         { "decode", 0, 0, 'd' },
76         { "analyze", 0, 0, 'a' },
77         { "test", 0, 0, 't' },
78         { "stdout", 0, 0, 'c' },
79         { "silent", 0, 0, 's' },
80         { "delete-input-file", 0, 0, 0 },
81         { "output-prefix", 1, 0, 0 },
82         { "output-name", 1, 0, 'o' },
83         { "skip", 1, 0, 0 },
84
85         /*
86          * decoding options
87          */
88         { "decode-through-errors", 0, 0, 'F' },
89
90         /*
91          * encoding options
92          */
93         { "compression-level-0", 0, 0, '0' },
94         { "compression-level-1", 0, 0, '1' },
95         { "compression-level-2", 0, 0, '2' },
96         { "compression-level-3", 0, 0, '3' },
97         { "compression-level-4", 0, 0, '4' },
98         { "compression-level-5", 0, 0, '5' },
99         { "compression-level-6", 0, 0, '6' },
100         { "compression-level-7", 0, 0, '7' },
101         { "compression-level-8", 0, 0, '8' },
102         { "compression-level-9", 0, 0, '9' },
103         { "best", 0, 0, '8' },
104         { "fast", 0, 0, '0' },
105         { "super-secret-impractical-compression-level", 0, 0, 0 },
106         { "verify", 0, 0, 'V' },
107         { "force-raw-input", 0, 0, 0 },
108         { "lax", 0, 0, 0 },
109         { "sector-align", 0, 0, 0 },
110         { "seekpoint", 1, 0, 'S' },
111         { "padding", 1, 0, 'P' },
112 #ifdef FLAC__HAS_OGG
113         { "ogg", 0, 0, 0 },
114 #endif
115         { "blocksize", 1, 0, 'b' },
116         { "exhaustive-model-search", 0, 0, 'e' },
117 #if 0
118         /* @@@ deprecated: */
119         { "escape-coding", 0, 0, 'E' },
120 #endif
121         { "max-lpc-order", 1, 0, 'l' },
122         { "mid-side", 0, 0, 'm' },
123         { "adaptive-mid-side", 0, 0, 'M' },
124         { "qlp-coeff-precision-search", 0, 0, 'p' },
125         { "qlp-coeff-precision", 1, 0, 'q' },
126         { "rice-partition-order", 1, 0, 'r' },
127 #if 0
128         /* @@@ deprecated: */
129         { "rice-parameter-search-distance", 1, 0, 'R' },
130 #endif
131         { "endian", 1, 0, 0 },
132         { "channels", 1, 0, 0 },
133         { "bps", 1, 0, 0 },
134         { "sample-rate", 1, 0, 0 },
135         { "sign", 1, 0, 0 },
136
137         /*
138          * analysis options
139          */
140         { "residual-gnu-plot", 0, 0, 0 },
141         { "residual-text", 0, 0, 0 },
142
143         /*
144          * negatives
145          */
146         { "no-decode-through-errors", 0, 0, 0 },
147         { "no-silent", 0, 0, 0 },
148         { "no-seektable", 0, 0, 0 },
149         { "no-delete-input-file", 0, 0, 0 },
150         { "no-sector-align", 0, 0, 0 },
151         { "no-lax", 0, 0, 0 },
152 #ifdef FLAC__HAS_OGG
153         { "no-ogg", 0, 0, 0 },
154 #endif
155         { "no-exhaustive-model-search", 0, 0, 0 },
156 #if 0
157         /* @@@ deprecated: */
158         { "no-escape-coding", 0, 0, 0 },
159 #endif
160         { "no-mid-side", 0, 0, 0 },
161         { "no-adaptive-mid-side", 0, 0, 0 },
162         { "no-qlp-coeff-prec-search", 0, 0, 0 },
163         { "no-padding", 0, 0, 0 },
164         { "no-verify", 0, 0, 0 },
165         { "no-residual-gnuplot", 0, 0, 0 },
166         { "no-residual-text", 0, 0, 0 },
167
168         {0, 0, 0, 0}
169 };
170
171
172 /*
173  * global to hold command-line option values
174  */
175
176 static struct {
177         FLAC__bool show_help;
178         FLAC__bool show_explain;
179         FLAC__bool mode_decode;
180         FLAC__bool verify;
181         FLAC__bool verbose;
182         FLAC__bool continue_through_decode_errors;
183         FLAC__bool lax;
184         FLAC__bool test_only;
185         FLAC__bool analyze;
186         FLAC__bool use_ogg;
187         FLAC__bool do_mid_side;
188         FLAC__bool loose_mid_side;
189         FLAC__bool do_exhaustive_model_search;
190         FLAC__bool do_escape_coding;
191         FLAC__bool do_qlp_coeff_prec_search;
192         FLAC__bool force_to_stdout;
193         FLAC__bool force_raw_format;
194         FLAC__bool delete_input;
195         FLAC__bool sector_align;
196         const char *cmdline_forced_outfilename;
197         const char *output_prefix;
198         analysis_options aopts;
199         int padding;
200         unsigned max_lpc_order;
201         unsigned qlp_coeff_precision;
202         FLAC__uint64 skip;
203         int format_is_big_endian;
204         int format_is_unsigned_samples;
205         int format_channels;
206         int format_bps;
207         int format_sample_rate;
208         int blocksize;
209         int min_residual_partition_order;
210         int max_residual_partition_order;
211         int rice_parameter_search_dist;
212         char requested_seek_points[50000]; /* @@@ bad MAGIC NUMBER */
213         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
214
215         unsigned num_files;
216         char **filenames;
217 } option_values;
218
219
220 /*
221  * miscellaneous globals
222  */
223
224 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
225 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
226 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
227
228 static const char *flac_suffix = ".flac", *ogg_suffix = ".ogg";
229
230
231 int main(int argc, char *argv[])
232 {
233         int retval = 0;
234
235         init_options();
236
237         if((retval = parse_options(argc, argv)) == 0)
238                 retval = do_it();
239
240         free_options();
241
242         return retval;
243 }
244
245 int do_it()
246 {
247         int retval = 0;
248
249         if(option_values.show_explain) {
250                 show_explain();
251                 return 0;
252         }
253         else if(option_values.show_help) {
254                 show_help();
255                 return 0;
256         }
257         else {
258                 if(option_values.num_files == 0) {
259                         short_usage();
260                         return 0;
261                 }
262
263                 /*
264                  * tweak options; validate the values
265                  */
266                 if(!option_values.mode_decode) {
267                         if(option_values.blocksize < 0) {
268                                 if(option_values.max_lpc_order == 0)
269                                         option_values.blocksize = 1152;
270                                 else
271                                         option_values.blocksize = 4608;
272                         }
273                         if(option_values.max_residual_partition_order < 0) {
274                                 if(option_values.blocksize <= 1152)
275                                         option_values.max_residual_partition_order = 2;
276                                 else if(option_values.blocksize <= 2304)
277                                         option_values.max_residual_partition_order = 3;
278                                 else if(option_values.blocksize <= 4608)
279                                         option_values.max_residual_partition_order = 3;
280                                 else
281                                         option_values.max_residual_partition_order = 4;
282                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order;
283                         }
284                         if(option_values.rice_parameter_search_dist < 0) {
285                                 option_values.rice_parameter_search_dist = 0;
286                         }
287                 }
288                 else {
289                         if(option_values.test_only) {
290                                 if(option_values.skip > 0)
291                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
292                         }
293                 }
294
295                 FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
296
297                 if(option_values.format_channels >= 0) {
298                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
299                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
300                 }
301                 if(option_values.format_bps >= 0) {
302                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
303                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
304                 }
305                 if(option_values.format_sample_rate >= 0) {
306                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
307                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
308                 }
309                 if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
310                         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);
311                 }
312                 if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
313                         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);
314                 }
315
316                 if(option_values.sector_align) {
317                         if(option_values.mode_decode)
318                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
319                         else if(option_values.skip > 0)
320                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
321                         else if(option_values.format_channels >= 0 && option_values.format_channels != 2)
322                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
323                         else if(option_values.format_bps >= 0 && option_values.format_bps != 16)
324                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
325                         else if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
326                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
327                 }
328                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
329                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
330                 }
331                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
332                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
333                 }
334         }
335         if(option_values.verbose) {
336                 fprintf(stderr, "\n");
337                 fprintf(stderr, "flac %s, Copyright (C) 2000,2001,2002 Josh Coalson\n", FLAC__VERSION_STRING);
338                 fprintf(stderr, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
339                 fprintf(stderr, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
340
341                 if(!option_values.mode_decode) {
342                         char padopt[16];
343                         if(option_values.padding < 0)
344                                 strcpy(padopt, "-");
345                         else
346                                 sprintf(padopt, " %d", option_values.padding);
347                         fprintf(stderr,
348                                 "options:%s%s"
349 #ifdef FLAC__HAS_OGG
350                                 "%s"
351 #endif
352                                 "%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
353                                 option_values.delete_input?" --delete-input-file":"",
354                                 option_values.sector_align?" --sector-align":"",
355 #ifdef FLAC__HAS_OGG
356                                 option_values.use_ogg?" --ogg":"",
357 #endif
358                                 option_values.lax?" --lax":"",
359                                 padopt,
360                                 (unsigned)option_values.blocksize,
361                                 option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
362                                 option_values.max_lpc_order,
363                                 option_values.do_exhaustive_model_search?" -e":"",
364                                 option_values.do_escape_coding?" -E":"",
365                                 option_values.do_qlp_coeff_prec_search?" -p":"",
366                                 option_values.qlp_coeff_precision,
367                                 (unsigned)option_values.min_residual_partition_order,
368                                 (unsigned)option_values.max_residual_partition_order,
369                                 option_values.verify? " -V":""
370                         );
371                 }
372         }
373
374         if(option_values.mode_decode) {
375                 FLAC__bool first = true;
376
377                 if(option_values.num_files == 0) {
378                         retval = decode_file("-", 0);
379                 }
380                 else {
381                         unsigned i;
382                         if(option_values.num_files > 1)
383                                 option_values.cmdline_forced_outfilename = 0;
384                         for(i = 0, retval = 0; i < option_values.num_files && retval == 0; i++) {
385                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
386                                         continue;
387                                 retval = decode_file(option_values.filenames[i], 0);
388                                 first = false;
389                         }
390                 }
391         }
392         else { /* encode */
393                 FLAC__bool first = true;
394
395                 if(option_values.num_files == 0) {
396                         retval = encode_file("-", 0, true);
397                 }
398                 else {
399                         unsigned i;
400                         if(option_values.num_files > 1)
401                                 option_values.cmdline_forced_outfilename = 0;
402                         for(i = 0, retval = 0; i < option_values.num_files && retval == 0; i++) {
403                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
404                                         continue;
405                                 retval = encode_file(option_values.filenames[i], 0, i == (option_values.num_files-1));
406                                 first = false;
407                         }
408                 }
409         }
410
411         return retval;
412 }
413
414 void init_options()
415 {
416         option_values.show_help = false;
417         option_values.show_explain = false;
418         option_values.mode_decode = false;
419         option_values.verify = false;
420         option_values.verbose = true;
421         option_values.continue_through_decode_errors = false;
422         option_values.lax = false;
423         option_values.test_only = false;
424         option_values.analyze = false;
425         option_values.use_ogg = false;
426         option_values.do_mid_side = true;
427         option_values.loose_mid_side = false;
428         option_values.do_exhaustive_model_search = false;
429         option_values.do_escape_coding = false;
430         option_values.do_qlp_coeff_prec_search = false;
431         option_values.force_to_stdout = false;
432         option_values.force_raw_format = false;
433         option_values.delete_input = false;
434         option_values.sector_align = false;
435         option_values.cmdline_forced_outfilename = 0;
436         option_values.output_prefix = 0;
437         option_values.aopts.do_residual_text = false;
438         option_values.aopts.do_residual_gnuplot = false;
439         option_values.padding = -1;
440         option_values.max_lpc_order = 8;
441         option_values.qlp_coeff_precision = 0;
442         option_values.skip = 0;
443         option_values.format_is_big_endian = -1;
444         option_values.format_is_unsigned_samples = false;
445         option_values.format_channels = -1;
446         option_values.format_bps = -1;
447         option_values.format_sample_rate = -1;
448         option_values.blocksize = -1;
449         option_values.min_residual_partition_order = -1;
450         option_values.max_residual_partition_order = -1;
451         option_values.rice_parameter_search_dist = -1;
452         option_values.requested_seek_points[0] = '\0';
453         option_values.num_requested_seek_points = -1;
454
455         option_values.num_files = 0;
456         option_values.filenames = 0;
457 }
458
459 int parse_options(int argc, char *argv[])
460 {
461         int short_option;
462         int option_index = 1;
463         FLAC__bool had_error = false;
464         /*@@@ E and R: are deprecated */
465         const char *short_opts = "0123456789ab:cdeFhHl:mMo:pP:q:r:sS:tV";
466
467         while ((short_option = FLAC__share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
468                 switch (short_option) {
469                         case 0: /* long option with no equivalent short option */
470                                 had_error |= (parse_option(short_option, long_options_[option_index].name, FLAC__share__optarg) != 0);
471                                 break;
472                         case '?':
473                         case ':':
474                                 had_error = true;
475                                 break;
476                         default: /* short option */
477                                 had_error |= (parse_option(short_option, 0, FLAC__share__optarg) != 0);
478                                 break;
479                 }
480         }
481
482         if(had_error) {
483                 return 1;
484         }
485
486         FLAC__ASSERT(FLAC__share__optind <= argc);
487
488         option_values.num_files = argc - FLAC__share__optind;
489
490         if(option_values.num_files > 0) {
491                 unsigned i = 0;
492                 if(0 == (option_values.filenames = malloc(sizeof(char *) * option_values.num_files)))
493                         die("out of memory allocating space for file names list");
494                 while(FLAC__share__optind < argc)
495                         option_values.filenames[i++] = local_strdup(argv[FLAC__share__optind++]);
496         }
497
498         return 0;
499 }
500
501 int parse_option(int short_option, const char *long_option, const char *option_argument)
502 {
503         char *p;
504
505         if(short_option == 0) {
506                 FLAC__ASSERT(0 != long_option);
507                 if(0 == strcmp(long_option, "delete-input-file")) {
508                         option_values.delete_input = true;
509                 }
510                 else if(0 == strcmp(long_option, "output-prefix")) {
511                         FLAC__ASSERT(0 != option_argument);
512                         option_values.output_prefix = option_argument;
513                 }
514                 else if(0 == strcmp(long_option, "skip")) {
515                         FLAC__ASSERT(0 != option_argument);
516                         option_values.skip = (FLAC__uint64)atoi(option_argument); /* @@@ takes a pretty damn big file to overflow atoi() here, but it could happen */
517                 }
518                 else if(0 == strcmp(long_option, "super-secret-impractical-compression-level")) {
519                         option_values.do_exhaustive_model_search = true;
520                         option_values.do_escape_coding = true;
521                         option_values.do_mid_side = true;
522                         option_values.loose_mid_side = false;
523                         option_values.do_qlp_coeff_prec_search = true;
524                         option_values.min_residual_partition_order = 0;
525                         option_values.max_residual_partition_order = 16;
526                         option_values.rice_parameter_search_dist = 0;
527                         option_values.max_lpc_order = 32;
528                 }
529                 else if(0 == strcmp(long_option, "force-raw-input")) {
530                         option_values.force_raw_format = true;
531                 }
532                 else if(0 == strcmp(long_option, "lax")) {
533                         option_values.lax = true;
534                 }
535                 else if(0 == strcmp(long_option, "sector-align")) {
536                         option_values.sector_align = true;
537                 }
538 #ifdef FLAC__HAS_OGG
539                 else if(0 == strcmp(long_option, "ogg")) {
540                         option_values.use_ogg = true;
541                 }
542 #endif
543                 else if(0 == strcmp(long_option, "endian")) {
544                         FLAC__ASSERT(0 != option_argument);
545                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
546                                 option_values.format_is_big_endian = true;
547                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
548                                 option_values.format_is_big_endian = false;
549                         else
550                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
551                 }
552                 else if(0 == strcmp(long_option, "channels")) {
553                         FLAC__ASSERT(0 != option_argument);
554                         option_values.format_channels = atoi(option_argument);
555                 }
556                 else if(0 == strcmp(long_option, "bps")) {
557                         FLAC__ASSERT(0 != option_argument);
558                         option_values.format_bps = atoi(option_argument);
559                 }
560                 else if(0 == strcmp(long_option, "sample-rate")) {
561                         FLAC__ASSERT(0 != option_argument);
562                         option_values.format_sample_rate = atoi(option_argument);
563                 }
564                 else if(0 == strcmp(long_option, "sign")) {
565                         FLAC__ASSERT(0 != option_argument);
566                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
567                                 option_values.format_is_unsigned_samples = false;
568                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
569                                 option_values.format_is_unsigned_samples = true;
570                         else
571                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
572                 }
573                 else if(0 == strcmp(long_option, "residual-gnu-plot")) {
574                         option_values.aopts.do_residual_gnuplot = true;
575                 }
576                 else if(0 == strcmp(long_option, "residual-text")) {
577                         option_values.aopts.do_residual_text = true;
578                 }
579                 /*
580                  * negatives
581                  */
582                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
583                         option_values.continue_through_decode_errors = false;
584                 }
585                 else if(0 == strcmp(long_option, "no-silent")) {
586                         option_values.verbose = true;
587                 }
588                 else if(0 == strcmp(long_option, "no-seektable")) {
589                         option_values.num_requested_seek_points = 0;
590                         option_values.requested_seek_points[0] = '\0';
591                 }
592                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
593                         option_values.delete_input = false;
594                 }
595                 else if(0 == strcmp(long_option, "no-sector-align")) {
596                         option_values.sector_align = false;
597                 }
598                 else if(0 == strcmp(long_option, "no-lax")) {
599                         option_values.lax = false;
600                 }
601 #ifdef FLAC__HAS_OGG
602                 else if(0 == strcmp(long_option, "no-ogg")) {
603                         option_values.use_ogg = false;
604                 }
605 #endif
606                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
607                         option_values.do_exhaustive_model_search = false;
608                 }
609 #if 0
610                 /* @@@ deprecated: */
611                 else if(0 == strcmp(long_option, "no-escape-coding")) {
612                         option_values.do_escape_coding = false;
613                 }
614 #endif
615                 else if(0 == strcmp(long_option, "no-mid-side")) {
616                         option_values.do_mid_side = option_values.loose_mid_side = false;
617                 }
618                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
619                         option_values.loose_mid_side = option_values.do_mid_side = false;
620                 }
621                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
622                         option_values.do_qlp_coeff_prec_search = false;
623                 }
624                 else if(0 == strcmp(long_option, "no-padding")) {
625                         option_values.padding = -1;
626                 }
627                 else if(0 == strcmp(long_option, "no-verify")) {
628                         option_values.verify = false;
629                 }
630                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
631                         option_values.aopts.do_residual_gnuplot = false;
632                 }
633                 else if(0 == strcmp(long_option, "no-residual-text")) {
634                         option_values.aopts.do_residual_text = false;
635                 }
636         }
637         else {
638                 switch(short_option) {
639                         case 'h':
640                                 option_values.show_help = true;
641                                 break;
642                         case 'H':
643                                 option_values.show_explain = true;
644                                 break;
645                         case 'd':
646                                 option_values.mode_decode = true;
647                                 break;
648                         case 'a':
649                                 option_values.mode_decode = true;
650                                 option_values.analyze = true;
651                                 break;
652                         case 't':
653                                 option_values.mode_decode = true;
654                                 option_values.test_only = true;
655                                 break;
656                         case 'c':
657                                 option_values.force_to_stdout = true;
658                                 break;
659                         case 's':
660                                 option_values.verbose = false;
661                                 break;
662                         case 'o':
663                                 FLAC__ASSERT(0 != option_argument);
664                                 option_values.cmdline_forced_outfilename = option_argument;
665                                 break;
666                         case 'F':
667                                 option_values.continue_through_decode_errors = true;
668                                 break;
669                         case '0':
670                                 option_values.do_exhaustive_model_search = false;
671                                 option_values.do_escape_coding = false;
672                                 option_values.do_mid_side = false;
673                                 option_values.loose_mid_side = false;
674                                 option_values.qlp_coeff_precision = 0;
675                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
676                                 option_values.rice_parameter_search_dist = 0;
677                                 option_values.max_lpc_order = 0;
678                                 break;
679                         case '1':
680                                 option_values.do_exhaustive_model_search = false;
681                                 option_values.do_escape_coding = false;
682                                 option_values.do_mid_side = true;
683                                 option_values.loose_mid_side = true;
684                                 option_values.qlp_coeff_precision = 0;
685                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
686                                 option_values.rice_parameter_search_dist = 0;
687                                 option_values.max_lpc_order = 0;
688                                 break;
689                         case '2':
690                                 option_values.do_exhaustive_model_search = false;
691                                 option_values.do_escape_coding = false;
692                                 option_values.do_mid_side = true;
693                                 option_values.loose_mid_side = false;
694                                 option_values.qlp_coeff_precision = 0;
695                                 option_values.min_residual_partition_order = 0;
696                                 option_values.max_residual_partition_order = 3;
697                                 option_values.rice_parameter_search_dist = 0;
698                                 option_values.max_lpc_order = 0;
699                                 break;
700                         case '3':
701                                 option_values.do_exhaustive_model_search = false;
702                                 option_values.do_escape_coding = false;
703                                 option_values.do_mid_side = false;
704                                 option_values.loose_mid_side = false;
705                                 option_values.qlp_coeff_precision = 0;
706                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
707                                 option_values.rice_parameter_search_dist = 0;
708                                 option_values.max_lpc_order = 6;
709                                 break;
710                         case '4':
711                                 option_values.do_exhaustive_model_search = false;
712                                 option_values.do_escape_coding = false;
713                                 option_values.do_mid_side = true;
714                                 option_values.loose_mid_side = true;
715                                 option_values.qlp_coeff_precision = 0;
716                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
717                                 option_values.rice_parameter_search_dist = 0;
718                                 option_values.max_lpc_order = 8;
719                                 break;
720                         case '5':
721                                 option_values.do_exhaustive_model_search = false;
722                                 option_values.do_escape_coding = false;
723                                 option_values.do_mid_side = true;
724                                 option_values.loose_mid_side = false;
725                                 option_values.qlp_coeff_precision = 0;
726                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
727                                 option_values.rice_parameter_search_dist = 0;
728                                 option_values.max_lpc_order = 8;
729                                 break;
730                         case '6':
731                                 option_values.do_exhaustive_model_search = false;
732                                 option_values.do_escape_coding = false;
733                                 option_values.do_mid_side = true;
734                                 option_values.loose_mid_side = false;
735                                 option_values.qlp_coeff_precision = 0;
736                                 option_values.min_residual_partition_order = 0;
737                                 option_values.max_residual_partition_order = 4;
738                                 option_values.rice_parameter_search_dist = 0;
739                                 option_values.max_lpc_order = 8;
740                                 break;
741                         case '7':
742                                 option_values.do_exhaustive_model_search = true;
743                                 option_values.do_escape_coding = false;
744                                 option_values.do_mid_side = true;
745                                 option_values.loose_mid_side = false;
746                                 option_values.qlp_coeff_precision = 0;
747                                 option_values.min_residual_partition_order = 0;
748                                 option_values.max_residual_partition_order = 6;
749                                 option_values.rice_parameter_search_dist = 0;
750                                 option_values.max_lpc_order = 8;
751                                 break;
752                         case '8':
753                                 option_values.do_exhaustive_model_search = true;
754                                 option_values.do_escape_coding = false;
755                                 option_values.do_mid_side = true;
756                                 option_values.loose_mid_side = false;
757                                 option_values.qlp_coeff_precision = 0;
758                                 option_values.min_residual_partition_order = 0;
759                                 option_values.max_residual_partition_order = 6;
760                                 option_values.rice_parameter_search_dist = 0;
761                                 option_values.max_lpc_order = 12;
762                                 break;
763                         case '9':
764                                 return usage_error("ERROR: compression level '9' is reserved\n");
765                         case 'V':
766                                 option_values.verify = true;
767                                 break;
768                         case 'S':
769                                 FLAC__ASSERT(0 != option_argument);
770                                 if(option_values.num_requested_seek_points < 0)
771                                         option_values.num_requested_seek_points = 0;
772                                 option_values.num_requested_seek_points++;
773                                 strcat(option_values.requested_seek_points, option_argument);
774                                 strcat(option_values.requested_seek_points, "<");
775                                 break;
776                         case 'P':
777                                 FLAC__ASSERT(0 != option_argument);
778                                 option_values.padding = atoi(option_argument);
779                                 if(option_values.padding < 0)
780                                         return usage_error("ERROR: argument to -P must be >= 0\n");
781                                 break;
782                         case 'b':
783                                 FLAC__ASSERT(0 != option_argument);
784                                 option_values.blocksize = atoi(option_argument);
785                                 break;
786                         case 'e':
787                                 option_values.do_exhaustive_model_search = true;
788                                 break;
789                         case 'E':
790                                 option_values.do_escape_coding = true;
791                                 break;
792                         case 'l':
793                                 FLAC__ASSERT(0 != option_argument);
794                                 option_values.max_lpc_order = atoi(option_argument);
795                                 break;
796                         case 'm':
797                                 option_values.do_mid_side = true;
798                                 option_values.loose_mid_side = false;
799                                 break;
800                         case 'M':
801                                 option_values.loose_mid_side = option_values.do_mid_side = true;
802                                 break;
803                         case 'p':
804                                 option_values.do_qlp_coeff_prec_search = true;
805                                 break;
806                         case 'q':
807                                 FLAC__ASSERT(0 != option_argument);
808                                 option_values.qlp_coeff_precision = atoi(option_argument);
809                                 break;
810                         case 'r':
811                                 FLAC__ASSERT(0 != option_argument);
812                                 p = strchr(option_argument, ',');
813                                 if(0 == p) {
814                                         option_values.min_residual_partition_order = 0;
815                                         option_values.max_residual_partition_order = atoi(option_argument);
816                                 }
817                                 else {
818                                         option_values.min_residual_partition_order = atoi(option_argument);
819                                         option_values.max_residual_partition_order = atoi(++p);
820                                 }
821                                 break;
822                         case 'R':
823                                 FLAC__ASSERT(0 != option_argument);
824                                 option_values.rice_parameter_search_dist = atoi(option_argument);
825                                 break;
826                         default:
827                                 FLAC__ASSERT(0);
828                 }
829         }
830
831         return 0;
832 }
833
834 void free_options()
835 {
836         if(0 != option_values.filenames)
837                 free(option_values.filenames);
838 }
839
840 int usage_error(const char *message, ...)
841 {
842         va_list args;
843
844         FLAC__ASSERT(0 != message);
845
846         va_start(args, message);
847
848         (void) vfprintf(stderr, message, args);
849
850         va_end(args);
851
852         printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
853
854         return 1;
855 }
856
857 static void usage_header()
858 {
859         printf("===============================================================================\n");
860         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
861         printf("Copyright (C) 2000,2001,2002  Josh Coalson\n");
862         printf("\n");
863         printf("This program is free software; you can redistribute it and/or\n");
864         printf("modify it under the terms of the GNU General Public License\n");
865         printf("as published by the Free Software Foundation; either version 2\n");
866         printf("of the License, or (at your option) any later version.\n");
867         printf("\n");
868         printf("This program is distributed in the hope that it will be useful,\n");
869         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
870         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
871         printf("GNU General Public License for more details.\n");
872         printf("\n");
873         printf("You should have received a copy of the GNU General Public License\n");
874         printf("along with this program; if not, write to the Free Software\n");
875         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
876         printf("===============================================================================\n");
877 }
878
879 static void usage_summary()
880 {
881         printf("Usage:\n");
882         printf("\n");
883         printf(" Encoding: flac [-s] [--skip #] [<encoding/format-options>] [INPUTFILE [...]]\n");
884         printf(" Decoding: flac -d [-s] [--skip #] [-F] [<format-options>] [INPUTFILE [...]]\n");
885         printf("  Testing: flac -t [-s] [INPUTFILE [...]]\n");
886         printf("Analyzing: flac -a [-s] [--skip #] [<analysis-options>] [INPUTFILE [...]]\n");
887         printf("\n");
888 }
889
890 void short_usage()
891 {
892         usage_header();
893         printf("\n");
894         printf("This is the short help; for all options use 'flac --help'; for even more\n");
895         printf("instructions use 'flac --explain'\n");
896         printf("\n");
897         printf("To encode:\n");
898         printf("  flac [-#] [INPUTFILE [...]]\n");
899         printf("\n");
900         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
901         printf("\n");
902         printf("To decode:\n");
903         printf("  flac -d [INPUTFILE [...]]\n");
904         printf("\n");
905         printf("To test:\n");
906         printf("  flac -t [INPUTFILE [...]]\n");
907 }
908
909 void show_help()
910 {
911         usage_header();
912         usage_summary();
913         printf("generic options:\n");
914         printf("  -h, --help                   show this screen\n");
915         printf("  -H, --explain                show detailed explanation of usage and options\n");
916         printf("  -d, --decode                 decode (the default behavior is to encode)\n");
917         printf("  -t, --test                   same as -d except no decoded file is written\n");
918         printf("  -a, --analyze                same as -d except an analysis file is written\n");
919         printf("  -c, --stdout                 write output to stdout\n");
920         printf("  -s, --silent                 do not write runtime encode/decode statistics\n");
921         printf("  -o, --output-name=FILENAME   force the output file name\n");
922         printf("      --output-prefix=STRING   prepend STRING to output names\n");
923         printf("      --delete-input-file      deletes after a successful encode/decode\n");
924         printf("      --skip=#                 skip the first # samples of each input file\n");
925         printf("analysis options:\n");
926         printf("      --residual-text          include residual signal in text output\n");
927         printf("      --residual-gnuplot       generate gnuplot files of residual distribution\n");
928         printf("decoding options:\n");
929         printf("  -F, --decode-through-errors  continue decoding through stream errors\n");
930         printf("encoding options:\n");
931 #ifdef FLAC__HAS_OGG
932         printf("      --ogg                    output Ogg FLAC stream instead of native FLAC\n");
933 #endif
934         printf("      --lax                    allow encoder to generate non-Subset files\n");
935         printf("      --sector-align           align multiple files on sector boundaries\n");
936         printf("  -V, --verify                 verify a correct encoding\n");
937         printf("  -S, --seekpoint={#|X|#x}     add seek point(s)\n");
938         printf("  -P, --padding=#              write a PADDING block of length #\n");
939         printf("  -b, --blocksize=#            specify blocksize in samples\n");
940         printf("  -m, --mid-side               try mid-side coding for each frame\n");
941         printf("  -M, --adaptive-mid-side      adaptive mid-side coding for all frames\n");
942         printf("  -0, --compression-level-0, --fast  synonymous with -l 0 -b 1152 -r 2,2\n");
943         printf("  -1, --compression-level-1          synonymous with -l 0 -b 1152 -M -r 2,2\n");
944         printf("  -2, --compression-level-2          synonymous with -l 0 -b 1152 -m -r 3\n");
945         printf("  -3, --compression-level-3          synonymous with -l 6 -b 4608 -r 3,3\n");
946         printf("  -4, --compression-level-4          synonymous with -l 8 -b 4608 -M -r 3,3\n");
947         printf("  -5, --compression-level-5          synonymous with -l 8 -b 4608 -m -r 3,3\n");
948         printf("  -6, --compression-level-6          synonymous with -l 8 -b 4608 -m -r 4\n");
949         printf("  -7, --compression-level-7          synonymous with -l 8 -b 4608 -m -e -r 6\n");
950         printf("  -8, --compression-level-8, --best  synonymous with -l 12 -b 4608 -m -e -r 6\n");
951         printf("  -e, --exhaustive-model-search      do exhaustive model search (expensive!)\n");
952 #if 0
953         /*@@@ deprecated: */
954         printf("  -E, --escape-coding                do escape coding in the entropy coder\n");
955 #endif
956         printf("  -l, --max-lpc-order=#              max LPC order; 0 => only fixed predictors\n");
957         printf("  -p, --qlp-coeff-precision-search   exhaustively search LP coeff quantization\n");
958         printf("  -q, --qlp-coeff-precision=#        specify precision in bits\n");
959         printf("  -r, --rice-partition-order=[#,]#   [min,]max residual partition order\n");
960 #if 0
961         /*@@@ deprecated: */
962         printf("  -R, -rice-parameter-search-distance=#   Rice parameter search distance\n");
963 #endif
964         printf("format options:\n");
965         printf("      --endian={big|little}    set byte order for samples\n");
966         printf("      --channels=#             number of channels\n");
967         printf("      --bps=#                  number of bits per sample\n");
968         printf("      --sample-rate=#          sample rate in Hz\n");
969         printf("      --sign={signed|unsigned} sign of samples\n");
970         printf("      --force-raw-input        force input to be treated as raw samples\n");
971 }
972
973 void show_explain()
974 {
975         usage_header();
976         usage_summary();
977         printf("For encoding:\n");
978         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF file, or raw samples.\n");
979         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
980         printf("For decoding, the reverse is true.\n");
981         printf("\n");
982         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
983         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
984         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
985         printf("instead of:\n");
986         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
987         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
988         printf("WAVE/AIFF header contents when necessary.\n");
989         printf("\n");
990         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
991         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
992         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
993         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
994         printf("files using -fr.\n");
995         printf("\n");
996         printf("generic options:\n");
997         printf("  -h, --help                   show this screen\n");
998         printf("  -H, --explain                show detailed explanation of usage and options\n");
999         printf("  -d, --decode                 decode (the default behavior is to encode)\n");
1000         printf("  -t, --test                   same as -d except no decoded file is written\n");
1001         printf("  -a, --analyze                same as -d except an analysis file is written\n");
1002         printf("  -c, --stdout                 write output to stdout\n");
1003         printf("  -s, --silent                 do not write runtime encode/decode statistics\n");
1004         printf("  -o, --output-name=FILENAME   force the output file name; usually flac just\n");
1005         printf("                               changes the extension\n");
1006         printf("      --output-prefix=STRING   prefix each output file name with the given\n");
1007         printf("                               STRING.  This can be useful for encoding or\n");
1008         printf("                               decoding files to a different directory.  Make\n");
1009         printf("                               sure if your STRING is a path name that it ends\n");
1010         printf("                               with a '/' slash.\n");
1011         printf("      --delete-input-file      deletes after a successful encode/decode\n");
1012         printf("      --skip=#                 skip the first # samples of each input file; can\n");
1013         printf("                               be used both for encoding and decoding\n");
1014         printf("analysis options:\n");
1015         printf("      --residual-text          include residual signal in text output\n");
1016         printf("      --residual-gnuplot       generate gnuplot files of residual distribution\n");
1017         printf("                               of each subframe\n");
1018         printf("decoding options:\n");
1019         printf("  -F, --decode-through-errors  force the decoder to continue decoding through\n");
1020         printf("                               stream errors; errors will still be printed, but\n");
1021         printf("                               decoding won't stop.  Errors will manifest them-\n");
1022         printf("                               selves as skips or silent sections in the audio.\n");
1023         printf("encoding options:\n");
1024 #ifdef FLAC__HAS_OGG
1025         printf("      --ogg                    output Ogg FLAC stream instead of native FLAC\n");
1026 #endif
1027         printf("      --lax                    allow encoder to generate non-Subset files\n");
1028         printf("      --sector-align           align the encoding of multiple files on sector\n");
1029         printf("                               boundaries\n");
1030         printf("  -V, --verify                 verify a correct encoding by decoding the output\n");
1031         printf("                               in parallel and comparing it to the original\n");
1032         printf("  -S, --seekpoint={#|X|#x}     include a point or points in a SEEKTABLE\n");
1033         printf("       #  : a specific sample number for a seek point\n");
1034         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1035         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1036         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1037         printf("           ified union of all such values.\n");
1038         printf("     With no -S options, flac defaults to '-S 100x'.  Use -S- for no SEEKTABLE.\n");
1039         printf("     Note: -S #x will not work if the encoder can't determine the input size\n");
1040         printf("           before starting.\n");
1041         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1042         printf("           either no seek point entered (if the input size is determinable\n");
1043         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1044         printf("           determinable)\n");
1045         printf("  -P, --padding=#              write a PADDING block of length #; the PADDING\n");
1046         printf("                               block goes after any SEEKTABLE block.  # must be\n");
1047         printf("                               >= 0; the default is no PADDING).  Note that the\n");
1048         printf("                               overall size in bytes of the PADDING block will\n");
1049         printf("                               be # + 4 because of the metadata header.\n");
1050         printf("  -b, --blocksize=#            specify the blocksize in samples; the default is\n");
1051         printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
1052         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1053         printf("                               4096, 8192, 16384, or 32768 (unless --lax is\n");
1054         printf("                               used)\n");
1055         printf("  -m, --mid-side               try mid-side coding for each frame (stereo only)\n");
1056         printf("  -M, --adaptive-mid-side      adaptive mid-side coding for all frames (stereo\n");
1057         printf("                               only)\n");
1058         printf("  -0, --compression-level-0, --fast  synonymous with -l 0 -b 1152 -r 2,2\n");
1059         printf("  -1, --compression-level-1          synonymous with -l 0 -b 1152 -M -r 2,2\n");
1060         printf("  -2, --compression-level-2          synonymous with -l 0 -b 1152 -m -r 3\n");
1061         printf("  -3, --compression-level-3          synonymous with -l 6 -b 4608 -r 3,3\n");
1062         printf("  -4, --compression-level-4          synonymous with -l 8 -b 4608 -M -r 3,3\n");
1063         printf("  -5, --compression-level-5          synonymous with -l 8 -b 4608 -m -r 3,3\n");
1064         printf("                                     -5 is the default setting\n");
1065         printf("  -6, --compression-level-6          synonymous with -l 8 -b 4608 -m -r 4\n");
1066         printf("  -7, --compression-level-7          synonymous with -l 8 -b 4608 -m -e -r 6\n");
1067         printf("  -8, --compression-level-8, --best  synonymous with -l 12 -b 4608 -m -e -r 6\n");
1068         printf("  -e, --exhaustive-model-search      do exhaustive model search (expensive!)\n");
1069 #if 0
1070         /*@@@ deprecated: */
1071         printf("  -E, --escape-coding                do escape coding in the entropy coder\n");
1072 #endif
1073         printf("  -l, --max-lpc-order=#              max LPC order; 0 => only fixed predictors\n");
1074         printf("  -p, --qlp-coeff-precision-search   do exhaustive search of LP coefficient\n");
1075         printf("                                     quantization (expensive!); overrides -q,\n");
1076         printf("                                     does nothing if using -l 0\n");
1077 /*@@@@@@    ................................................................................*/
1078         printf("  -q, --qlp-coeff-precision=#        specify precision in bits of quantized\n");
1079         printf("                                     linear-predictor coefficients; 0 => let\n");
1080         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1081         printf("                                     default is -q 0)\n");
1082         printf("  -r, --rice-partition-order=[#,]#   set [min,]max residual partition order\n");
1083         printf("                                     (# is 0..16; min defaults to 0; the\n");
1084         printf("                                     default is -r 0; above 4 doesn't usually\n");
1085         printf("                                     help much)\n");
1086 #if 0
1087         /*@@@ deprecated: */
1088         printf("  -R, -rice-parameter-search-distance=#   Rice parameter search distance\n");
1089 #endif
1090         printf("format options:\n");
1091         printf("      --endian={big|little}    set byte order for samples\n");
1092         printf("      --channels=#             number of channels\n");
1093         printf("      --bps=#                  number of bits per sample\n");
1094         printf("      --sample-rate=#          sample rate in Hz\n");
1095         printf("      --sign={signed|unsigned} sign of samples\n");
1096         printf("      --force-raw-input        force input to be treated as raw samples\n");
1097 }
1098
1099 void
1100 format_mistake(const char *infilename, const char *wrong, const char *right)
1101 {
1102         fprintf(stderr, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1103 }
1104
1105 int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file)
1106 {
1107         FILE *encode_infile;
1108         char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
1109         char *p;
1110         FLAC__byte lookahead[12];
1111         unsigned lookahead_length = 0;
1112         FileFormat fmt= RAW;
1113         int retval;
1114         long infilesize;
1115         encode_options_t common_options;
1116
1117         if(0 == strcmp(infilename, "-")) {
1118                 infilesize = -1;
1119                 encode_infile = file__get_binary_stdin();
1120         }
1121         else {
1122                 infilesize = flac__file_get_filesize(infilename);
1123                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1124                         fprintf(stderr, "ERROR: can't open input file %s\n", infilename);
1125                         return 1;
1126                 }
1127         }
1128
1129         if(!option_values.force_raw_format) {
1130                 /* first set format based on name */
1131                 if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
1132                         fmt= WAV;
1133                 else if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".aif"))
1134                         fmt= AIF;
1135                 else if(strlen(infilename) > 4 && 0 == strcasecmp(infilename+(strlen(infilename)-5), ".aiff"))
1136                         fmt= AIF;
1137
1138                 /* attempt to guess the file type based on the first 12 bytes */
1139                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1140                         if(fmt != RAW)
1141                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1142                         fmt= RAW;
1143                 }
1144                 else {
1145                         if(!strncmp(lookahead, "RIFF", 4) && !strncmp(lookahead+8, "WAVE", 4))
1146                                 fmt= WAV;
1147                         else if(!strncmp(lookahead, "FORM", 4) && !strncmp(lookahead+8, "AIFF", 4))
1148                                 fmt= AIF;
1149                         else {
1150                                 if(fmt != RAW)
1151                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1152                                 fmt= RAW;
1153                         }
1154                 }
1155         }
1156
1157         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1158                 fprintf(stderr, "ERROR: can't --sector-align when the input size is unknown\n");
1159                 return 1;
1160         }
1161
1162         if(fmt == RAW) {
1163                 if(option_values.format_is_big_endian < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0)
1164                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --channels, --bps, and --sample-rate\n");
1165         }
1166
1167         if(encode_infile == stdin || option_values.force_to_stdout)
1168                 strcpy(outfilename, "-");
1169         else {
1170                 const char *suffix = (option_values.use_ogg? ogg_suffix : flac_suffix);
1171                 strcpy(outfilename, option_values.output_prefix? option_values.output_prefix : "");
1172                 strcat(outfilename, infilename);
1173                 if(0 == (p = strrchr(outfilename, '.')))
1174                         strcat(outfilename, suffix);
1175                 else {
1176                         if(0 == strcmp(p, suffix)) {
1177                                 strcpy(p, "_new");
1178                                 strcat(p, suffix);
1179                         }
1180                         else
1181                                 strcpy(p, suffix);
1182                 }
1183         }
1184         if(0 == forced_outfilename)
1185                 forced_outfilename = outfilename;
1186         if(0 != option_values.cmdline_forced_outfilename)
1187                 forced_outfilename = option_values.cmdline_forced_outfilename;
1188
1189         common_options.verbose = option_values.verbose;
1190         common_options.skip = option_values.skip;
1191         common_options.verify = option_values.verify;
1192 #ifdef FLAC__HAS_OGG
1193         common_options.use_ogg = option_values.use_ogg;
1194 #endif
1195         common_options.lax = option_values.lax;
1196         common_options.do_mid_side = option_values.do_mid_side;
1197         common_options.loose_mid_side = option_values.loose_mid_side;
1198         common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
1199         common_options.do_escape_coding = option_values.do_escape_coding;
1200         common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
1201         common_options.min_residual_partition_order = option_values.min_residual_partition_order;
1202         common_options.max_residual_partition_order = option_values.max_residual_partition_order;
1203         common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
1204         common_options.max_lpc_order = option_values.max_lpc_order;
1205         common_options.blocksize = (unsigned)option_values.blocksize;
1206         common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
1207         common_options.padding = option_values.padding;
1208         common_options.requested_seek_points = option_values.requested_seek_points;
1209         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1210         common_options.is_last_file = is_last_file;
1211         common_options.align_reservoir = align_reservoir;
1212         common_options.align_reservoir_samples = &align_reservoir_samples;
1213         common_options.sector_align = option_values.sector_align;
1214
1215         if(fmt == RAW) {
1216                 raw_encode_options_t options;
1217
1218                 options.common = common_options;
1219                 options.is_big_endian = option_values.format_is_big_endian;
1220                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1221                 options.channels = option_values.format_channels;
1222                 options.bps = option_values.format_bps;
1223                 options.sample_rate = option_values.format_sample_rate;
1224
1225                 retval = flac__encode_raw(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1226         }
1227         else {
1228                 wav_encode_options_t options;
1229
1230                 options.common = common_options;
1231
1232                 if(fmt == AIF)
1233                         retval = flac__encode_aif(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1234                 else
1235                         retval = flac__encode_wav(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1236         }
1237
1238         if(retval == 0 && strcmp(infilename, "-")) {
1239                 if(strcmp(forced_outfilename, "-"))
1240                         flac__file_copy_metadata(infilename, forced_outfilename);
1241                 if(option_values.delete_input)
1242                         unlink(infilename);
1243         }
1244
1245         return retval;
1246 }
1247
1248 int decode_file(const char *infilename, const char *forced_outfilename)
1249 {
1250         static const char *suffixes[] = { ".wav", ".raw", ".ana" };
1251         char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
1252         char *p;
1253         int retval;
1254         FLAC__bool treat_as_ogg = false;
1255         decode_options_t common_options;
1256
1257         if(!option_values.test_only && !option_values.analyze) {
1258                 if(option_values.force_raw_format && option_values.format_is_big_endian < 0)
1259                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian\n");
1260         }
1261
1262         if(0 == strcmp(infilename, "-") || option_values.force_to_stdout)
1263                 strcpy(outfilename, "-");
1264         else {
1265                 const char *suffix = suffixes[option_values.analyze? 2 : option_values.force_raw_format? 1 : 0];
1266                 strcpy(outfilename, option_values.output_prefix? option_values.output_prefix : "");
1267                 strcat(outfilename, infilename);
1268                 if(0 == (p = strrchr(outfilename, '.')))
1269                         strcat(outfilename, suffix);
1270                 else {
1271                         if(0 == strcmp(p, suffix)) {
1272                                 strcpy(p, "_new");
1273                                 strcat(p, suffix);
1274                         }
1275                         else
1276                                 strcpy(p, suffix);
1277                 }
1278         }
1279         if(0 == forced_outfilename)
1280                 forced_outfilename = outfilename;
1281         if(0 != option_values.cmdline_forced_outfilename)
1282                 forced_outfilename = option_values.cmdline_forced_outfilename;
1283
1284         if(option_values.use_ogg)
1285                 treat_as_ogg = true;
1286         else if(0 == strcasecmp(infilename+(strlen(infilename)-4), ".ogg"))
1287                 treat_as_ogg = true;
1288         else
1289                 treat_as_ogg = false;
1290
1291 #ifndef FLAC__HAS_OGG
1292         if(treat_as_ogg) {
1293                 fprintf(stderr, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1294                 return 1;
1295         }
1296 #endif
1297
1298         common_options.verbose = option_values.verbose;
1299         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1300 #ifdef FLAC__HAS_OGG
1301         common_options.is_ogg = treat_as_ogg;
1302 #endif
1303         common_options.skip = option_values.skip;
1304
1305         if(!option_values.force_raw_format) {
1306                 wav_decode_options_t options;
1307
1308                 options.common = common_options;
1309
1310                 retval = flac__decode_wav(infilename, option_values.test_only? 0 : forced_outfilename, option_values.analyze, option_values.aopts, options);
1311         }
1312         else {
1313                 raw_decode_options_t options;
1314
1315                 options.common = common_options;
1316                 options.is_big_endian = option_values.format_is_big_endian;
1317                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1318
1319                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : forced_outfilename, option_values.analyze, option_values.aopts, options);
1320         }
1321
1322         if(retval == 0 && strcmp(infilename, "-")) {
1323                 if(strcmp(forced_outfilename, "-"))
1324                         flac__file_copy_metadata(infilename, forced_outfilename);
1325                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1326                         unlink(infilename);
1327         }
1328
1329         return retval;
1330 }
1331
1332 void die(const char *message)
1333 {
1334         FLAC__ASSERT(0 != message);
1335         fprintf(stderr, "ERROR: %s\n", message);
1336         exit(1);
1337 }
1338
1339 char *local_strdup(const char *source)
1340 {
1341         char *ret;
1342         FLAC__ASSERT(0 != source);
1343         if(0 == (ret = strdup(source)))
1344                 die("out of memory during strdup()");
1345         return ret;
1346 }