fix bugs with --skip, implement --until
[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 <locale.h>
21 #include <stdarg.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #ifdef HAVE_CONFIG_H
27 #include <config.h>
28 #endif
29
30 #if !defined _MSC_VER && !defined __MINGW32__
31 /* unlink is in stdio.h in VC++ */
32 #include <unistd.h> /* for unlink() */
33 #else
34 #define strcasecmp stricmp
35 #endif
36 #include "FLAC/all.h"
37 #include "share/grabbag.h"
38 #include "analyze.h"
39 #include "decode.h"
40 #include "encode.h"
41 #include "utils.h"
42 #include "vorbiscomment.h"
43
44 #if 0
45 /*[JEC] was:#if HAVE_GETOPT_LONG*/
46 /*[JEC] see flac/include/share/getopt.h as to why the change */
47 #  include <getopt.h>
48 #else
49 #  include "share/getopt.h"
50 #endif
51
52 typedef enum { RAW, WAV, AIF } FileFormat;
53
54 static int do_it();
55
56 static FLAC__bool init_options();
57 static int parse_options(int argc, char *argv[]);
58 static int parse_option(int short_option, const char *long_option, const char *option_argument);
59 static void free_options();
60
61 static int usage_error(const char *message, ...);
62 static void short_usage();
63 static void show_version();
64 static void show_help();
65 static void show_explain();
66 static void format_mistake(const char *infilename, const char *wrong, const char *right);
67
68 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
69 static int decode_file(const char *infilename);
70
71 static const char *get_encoded_outfilename(const char *infilename);
72 static const char *get_decoded_outfilename(const char *infilename);
73
74 static void die(const char *message);
75 static char *local_strdup(const char *source);
76
77
78 /*
79  * share__getopt format struct; note that for long options with no
80  * short option equivalent we just set the 'val' field to 0.
81  */
82 static struct share__option long_options_[] = {
83         /*
84          * general options
85          */
86         { "help", 0, 0, 'h' },
87         { "explain", 0, 0, 'H' },
88         { "version", 0, 0, 'v' },
89         { "decode", 0, 0, 'd' },
90         { "analyze", 0, 0, 'a' },
91         { "test", 0, 0, 't' },
92         { "stdout", 0, 0, 'c' },
93         { "silent", 0, 0, 's' },
94         { "delete-input-file", 0, 0, 0 },
95         { "output-prefix", 1, 0, 0 },
96         { "output-name", 1, 0, 'o' },
97         { "skip", 1, 0, 0 },
98         { "until", 1, 0, 0 },
99
100         /*
101          * decoding options
102          */
103         { "decode-through-errors", 0, 0, 'F' },
104
105         /*
106          * encoding options
107          */
108         { "cuesheet", 1, 0, 0 },
109         { "no-cued-seekpoints", 0, 0, 0 },
110         { "tag", 1, 0, 'T' },
111         { "compression-level-0", 0, 0, '0' },
112         { "compression-level-1", 0, 0, '1' },
113         { "compression-level-2", 0, 0, '2' },
114         { "compression-level-3", 0, 0, '3' },
115         { "compression-level-4", 0, 0, '4' },
116         { "compression-level-5", 0, 0, '5' },
117         { "compression-level-6", 0, 0, '6' },
118         { "compression-level-7", 0, 0, '7' },
119         { "compression-level-8", 0, 0, '8' },
120         { "compression-level-9", 0, 0, '9' },
121         { "best", 0, 0, '8' },
122         { "fast", 0, 0, '0' },
123         { "super-secret-totally-impractical-compression-level", 0, 0, 0 },
124         { "verify", 0, 0, 'V' },
125         { "force-raw-format", 0, 0, 0 },
126         { "lax", 0, 0, 0 },
127         { "replay-gain", 0, 0, 0 },
128         { "sector-align", 0, 0, 0 },
129         { "seekpoint", 1, 0, 'S' },
130         { "padding", 1, 0, 'P' },
131 #ifdef FLAC__HAS_OGG
132         { "ogg", 0, 0, 0 },
133         { "serial-number", 1, 0, 0 },
134 #endif
135         { "blocksize", 1, 0, 'b' },
136         { "exhaustive-model-search", 0, 0, 'e' },
137 #if 0
138         /* @@@ deprecated: */
139         { "escape-coding", 0, 0, 'E' },
140 #endif
141         { "max-lpc-order", 1, 0, 'l' },
142         { "mid-side", 0, 0, 'm' },
143         { "adaptive-mid-side", 0, 0, 'M' },
144         { "qlp-coeff-precision-search", 0, 0, 'p' },
145         { "qlp-coeff-precision", 1, 0, 'q' },
146         { "rice-partition-order", 1, 0, 'r' },
147 #if 0
148         /* @@@ deprecated: */
149         { "rice-parameter-search-distance", 1, 0, 'R' },
150 #endif
151         { "endian", 1, 0, 0 },
152         { "channels", 1, 0, 0 },
153         { "bps", 1, 0, 0 },
154         { "sample-rate", 1, 0, 0 },
155         { "sign", 1, 0, 0 },
156
157         /*
158          * analysis options
159          */
160         { "residual-gnu-plot", 0, 0, 0 },
161         { "residual-text", 0, 0, 0 },
162
163         /*
164          * negatives
165          */
166         { "no-decode-through-errors", 0, 0, 0 },
167         { "no-silent", 0, 0, 0 },
168         { "no-seektable", 0, 0, 0 },
169         { "no-delete-input-file", 0, 0, 0 },
170         { "no-replay-gain", 0, 0, 0 },
171         { "no-sector-align", 0, 0, 0 },
172         { "no-lax", 0, 0, 0 },
173 #ifdef FLAC__HAS_OGG
174         { "no-ogg", 0, 0, 0 },
175 #endif
176         { "no-exhaustive-model-search", 0, 0, 0 },
177 #if 0
178         /* @@@ deprecated: */
179         { "no-escape-coding", 0, 0, 0 },
180 #endif
181         { "no-mid-side", 0, 0, 0 },
182         { "no-adaptive-mid-side", 0, 0, 0 },
183         { "no-qlp-coeff-prec-search", 0, 0, 0 },
184         { "no-padding", 0, 0, 0 },
185         { "no-verify", 0, 0, 0 },
186         { "no-residual-gnuplot", 0, 0, 0 },
187         { "no-residual-text", 0, 0, 0 },
188         /*
189          * undocumented debugging options for the test suite
190          */
191         { "disable-constant-subframes", 0, 0, 0 },
192         { "disable-fixed-subframes", 0, 0, 0 },
193         { "disable-verbatim-subframes", 0, 0, 0 },
194
195         {0, 0, 0, 0}
196 };
197
198
199 /*
200  * global to hold command-line option values
201  */
202
203 static struct {
204         FLAC__bool show_help;
205         FLAC__bool show_explain;
206         FLAC__bool show_version;
207         FLAC__bool mode_decode;
208         FLAC__bool verify;
209         FLAC__bool verbose;
210         FLAC__bool continue_through_decode_errors;
211         FLAC__bool lax;
212         FLAC__bool test_only;
213         FLAC__bool analyze;
214         FLAC__bool use_ogg;
215         FLAC__bool has_serial_number; /* true iff --serial-number was used */
216         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
217         FLAC__bool do_mid_side;
218         FLAC__bool loose_mid_side;
219         FLAC__bool do_exhaustive_model_search;
220         FLAC__bool do_escape_coding;
221         FLAC__bool do_qlp_coeff_prec_search;
222         FLAC__bool force_to_stdout;
223         FLAC__bool force_raw_format;
224         FLAC__bool delete_input;
225         FLAC__bool replay_gain;
226         FLAC__bool sector_align;
227         const char *cmdline_forced_outfilename;
228         const char *output_prefix;
229         analysis_options aopts;
230         int padding;
231         unsigned max_lpc_order;
232         unsigned qlp_coeff_precision;
233         const char *skip_specification;
234         const char *until_specification;
235         int format_is_big_endian;
236         int format_is_unsigned_samples;
237         int format_channels;
238         int format_bps;
239         int format_sample_rate;
240         int blocksize;
241         int min_residual_partition_order;
242         int max_residual_partition_order;
243         int rice_parameter_search_dist;
244         char requested_seek_points[50000]; /* @@@ bad MAGIC NUMBER but buffer overflow is checked */
245         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
246         const char *cuesheet_filename;
247         FLAC__bool cued_seekpoints;
248
249         unsigned num_files;
250         char **filenames;
251
252         FLAC__StreamMetadata *vorbis_comment;
253
254         struct {
255                 FLAC__bool disable_constant_subframes;
256                 FLAC__bool disable_fixed_subframes;
257                 FLAC__bool disable_verbatim_subframes;
258         } debug;
259 } option_values;
260
261
262 /*
263  * miscellaneous globals
264  */
265
266 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
267 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
268 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
269
270
271 int main(int argc, char *argv[])
272 {
273         int retval = 0;
274
275         setlocale(LC_ALL, "");
276         if(!init_options()) {
277                 fprintf(stderr, "ERROR: allocating memory\n");
278                 retval = 1;
279         }
280         else {
281                 if((retval = parse_options(argc, argv)) == 0)
282                         retval = do_it();
283         }
284
285         free_options();
286
287         return retval;
288 }
289
290 int do_it()
291 {
292         int retval = 0;
293
294         if(option_values.show_version) {
295                 show_version();
296                 return 0;
297         }
298         else if(option_values.show_explain) {
299                 show_explain();
300                 return 0;
301         }
302         else if(option_values.show_help) {
303                 show_help();
304                 return 0;
305         }
306         else {
307                 if(option_values.num_files == 0) {
308                         short_usage();
309                         return 0;
310                 }
311
312                 /*
313                  * tweak options; validate the values
314                  */
315                 if(!option_values.mode_decode) {
316                         if(option_values.blocksize < 0) {
317                                 if(option_values.max_lpc_order == 0)
318                                         option_values.blocksize = 1152;
319                                 else
320                                         option_values.blocksize = 4608;
321                         }
322                         if(option_values.max_residual_partition_order < 0) {
323                                 if(option_values.blocksize <= 1152)
324                                         option_values.max_residual_partition_order = 2;
325                                 else if(option_values.blocksize <= 2304)
326                                         option_values.max_residual_partition_order = 3;
327                                 else if(option_values.blocksize <= 4608)
328                                         option_values.max_residual_partition_order = 3;
329                                 else
330                                         option_values.max_residual_partition_order = 4;
331                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order;
332                         }
333                         if(option_values.rice_parameter_search_dist < 0) {
334                                 option_values.rice_parameter_search_dist = 0;
335                         }
336                 }
337                 else {
338                         if(option_values.test_only) {
339                                 if(0 != option_values.skip_specification)
340                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
341                                 if(0 != option_values.until_specification)
342                                         return usage_error("ERROR: --until is not allowed in test mode\n");
343                         }
344                 }
345
346                 FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
347
348                 if(option_values.format_channels >= 0) {
349                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
350                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
351                 }
352                 if(option_values.format_bps >= 0) {
353                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
354                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
355                 }
356                 if(option_values.format_sample_rate >= 0) {
357                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
358                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
359                 }
360                 if(option_values.mode_decode) {
361                         if(!option_values.force_raw_format) {
362                                 if(option_values.format_is_big_endian >= 0)
363                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
364                                 if(option_values.format_is_unsigned_samples >= 0)
365                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
366                         }
367                         if(option_values.format_channels >= 0)
368                                 return usage_error("ERROR: --channels not allowed with --decode\n");
369                         if(option_values.format_bps >= 0)
370                                 return usage_error("ERROR: --bps not allowed with --decode\n");
371                         if(option_values.format_sample_rate >= 0)
372                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
373                 }
374                 if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
375                         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);
376                 }
377                 if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
378                         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);
379                 }
380
381                 if(option_values.sector_align) {
382                         if(option_values.mode_decode)
383                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
384                         if(0 != option_values.skip_specification)
385                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
386                         if(0 != option_values.until_specification)
387                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
388                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
389                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
390                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
391                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
392                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
393                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
394                 }
395                 if(option_values.replay_gain) {
396                         if(option_values.force_to_stdout)
397                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
398                         if(option_values.mode_decode)
399                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
400                         if(option_values.format_channels > 2)
401                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
402                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
403                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
404                         /*
405                          * We want to reserve padding space for the ReplayGain
406                          * tags that we will set later, to avoid rewriting the
407                          * whole file.
408                          */
409                         if(option_values.padding < 0) {
410                                 fprintf(stderr, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
411                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
412                         }
413                         else {
414                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
415                         }
416                 }
417                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
418                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
419                 }
420                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
421                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
422                 }
423                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
424                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
425                 }
426         }
427         if(option_values.verbose) {
428                 fprintf(stderr, "\n");
429                 fprintf(stderr, "flac %s, Copyright (C) 2000,2001,2002 Josh Coalson\n", FLAC__VERSION_STRING);
430                 fprintf(stderr, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
431                 fprintf(stderr, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
432
433                 if(!option_values.mode_decode) {
434                         char padopt[16];
435                         if(option_values.padding < 0)
436                                 strcpy(padopt, "-");
437                         else
438                                 sprintf(padopt, " %d", option_values.padding);
439                         fprintf(stderr,
440                                 "options:%s%s%s%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
441                                 option_values.delete_input?" --delete-input-file":"",
442                                 option_values.sector_align?" --sector-align":"",
443                                 option_values.use_ogg?" --ogg":"",
444                                 option_values.lax?" --lax":"",
445                                 padopt,
446                                 (unsigned)option_values.blocksize,
447                                 option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
448                                 option_values.max_lpc_order,
449                                 option_values.do_exhaustive_model_search?" -e":"",
450                                 option_values.do_escape_coding?" -E":"",
451                                 option_values.do_qlp_coeff_prec_search?" -p":"",
452                                 option_values.qlp_coeff_precision,
453                                 (unsigned)option_values.min_residual_partition_order,
454                                 (unsigned)option_values.max_residual_partition_order,
455                                 option_values.verify? " -V":""
456                         );
457                 }
458         }
459
460         if(option_values.mode_decode) {
461                 FLAC__bool first = true;
462
463                 if(option_values.num_files == 0) {
464                         retval = decode_file("-");
465                 }
466                 else {
467                         unsigned i;
468                         if(option_values.num_files > 1)
469                                 option_values.cmdline_forced_outfilename = 0;
470                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
471                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
472                                         continue;
473                                 retval |= decode_file(option_values.filenames[i]);
474                                 first = false;
475                         }
476                 }
477         }
478         else { /* encode */
479                 FLAC__bool first = true;
480
481                 if(option_values.num_files == 0) {
482                         retval = encode_file("-", first, true);
483                 }
484                 else {
485                         unsigned i;
486                         if(option_values.num_files > 1)
487                                 option_values.cmdline_forced_outfilename = 0;
488                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
489                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
490                                         continue;
491                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
492                                 first = false;
493                         }
494                         if(option_values.replay_gain && retval == 0) {
495                                 float album_gain, album_peak;
496                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
497                                 for(i = 0; i < option_values.num_files; i++) {
498                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
499                                         if(0 == strcmp(option_values.filenames[i], "-"))
500                                                 FLAC__ASSERT(0);
501                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
502                                                 fprintf(stderr, "%s: ERROR writing ReplayGain album tags\n", outfilename);
503                                                 retval = 1;
504                                         }
505                                 }
506                         }
507                 }
508         }
509
510         return retval;
511 }
512
513 FLAC__bool init_options()
514 {
515         option_values.show_help = false;
516         option_values.show_explain = false;
517         option_values.mode_decode = false;
518         option_values.verify = false;
519         option_values.verbose = true;
520         option_values.continue_through_decode_errors = false;
521         option_values.lax = false;
522         option_values.test_only = false;
523         option_values.analyze = false;
524         option_values.use_ogg = false;
525         option_values.has_serial_number = false;
526         option_values.serial_number = 0;
527         option_values.do_mid_side = true;
528         option_values.loose_mid_side = false;
529         option_values.do_exhaustive_model_search = false;
530         option_values.do_escape_coding = false;
531         option_values.do_qlp_coeff_prec_search = false;
532         option_values.force_to_stdout = false;
533         option_values.force_raw_format = false;
534         option_values.delete_input = false;
535         option_values.replay_gain = false;
536         option_values.sector_align = false;
537         option_values.cmdline_forced_outfilename = 0;
538         option_values.output_prefix = 0;
539         option_values.aopts.do_residual_text = false;
540         option_values.aopts.do_residual_gnuplot = false;
541         option_values.padding = 4096;
542         option_values.max_lpc_order = 8;
543         option_values.qlp_coeff_precision = 0;
544         option_values.skip_specification = 0;
545         option_values.until_specification = 0;
546         option_values.format_is_big_endian = -1;
547         option_values.format_is_unsigned_samples = -1;
548         option_values.format_channels = -1;
549         option_values.format_bps = -1;
550         option_values.format_sample_rate = -1;
551         option_values.blocksize = -1;
552         option_values.min_residual_partition_order = -1;
553         option_values.max_residual_partition_order = -1;
554         option_values.rice_parameter_search_dist = -1;
555         option_values.requested_seek_points[0] = '\0';
556         option_values.num_requested_seek_points = -1;
557         option_values.cuesheet_filename = 0;
558         option_values.cued_seekpoints = true;
559
560         option_values.num_files = 0;
561         option_values.filenames = 0;
562
563         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
564                 return false;
565
566         option_values.debug.disable_constant_subframes = false;
567         option_values.debug.disable_fixed_subframes = false;
568         option_values.debug.disable_verbatim_subframes = false;
569
570         return true;
571 }
572
573 int parse_options(int argc, char *argv[])
574 {
575         int short_option;
576         int option_index = 1;
577         FLAC__bool had_error = false;
578         /*@@@ E and R: are deprecated */
579         const char *short_opts = "0123456789ab:cdeFhHl:mMo:pP:q:r:sS:tT:vV";
580
581         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
582                 switch (short_option) {
583                         case 0: /* long option with no equivalent short option */
584                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
585                                 break;
586                         case '?':
587                         case ':':
588                                 had_error = true;
589                                 break;
590                         default: /* short option */
591                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
592                                 break;
593                 }
594         }
595
596         if(had_error) {
597                 return 1;
598         }
599
600         FLAC__ASSERT(share__optind <= argc);
601
602         option_values.num_files = argc - share__optind;
603
604         if(option_values.num_files > 0) {
605                 unsigned i = 0;
606                 if(0 == (option_values.filenames = malloc(sizeof(char *) * option_values.num_files)))
607                         die("out of memory allocating space for file names list");
608                 while(share__optind < argc)
609                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
610         }
611
612         return 0;
613 }
614
615 int parse_option(int short_option, const char *long_option, const char *option_argument)
616 {
617         char *p;
618
619         if(short_option == 0) {
620                 FLAC__ASSERT(0 != long_option);
621                 if(0 == strcmp(long_option, "delete-input-file")) {
622                         option_values.delete_input = true;
623                 }
624                 else if(0 == strcmp(long_option, "output-prefix")) {
625                         FLAC__ASSERT(0 != option_argument);
626                         option_values.output_prefix = option_argument;
627                 }
628                 else if(0 == strcmp(long_option, "skip")) {
629                         FLAC__ASSERT(0 != option_argument);
630                         option_values.skip_specification = option_argument;
631                 }
632                 else if(0 == strcmp(long_option, "until")) {
633                         FLAC__ASSERT(0 != option_argument);
634                         option_values.until_specification = option_argument;
635                 }
636                 else if(0 == strcmp(long_option, "cuesheet")) {
637                         FLAC__ASSERT(0 != option_argument);
638                         option_values.cuesheet_filename = option_argument;
639                 }
640                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
641                         option_values.cued_seekpoints = false;
642                 }
643                 else if(0 == strcmp(long_option, "super-secret-totally-impractical-compression-level")) {
644                         option_values.lax = true;
645                         option_values.do_exhaustive_model_search = true;
646                         option_values.do_escape_coding = true;
647                         option_values.do_mid_side = true;
648                         option_values.loose_mid_side = false;
649                         option_values.do_qlp_coeff_prec_search = true;
650                         option_values.min_residual_partition_order = 0;
651                         option_values.max_residual_partition_order = 16;
652                         option_values.rice_parameter_search_dist = 0;
653                         option_values.max_lpc_order = 32;
654                 }
655                 else if(0 == strcmp(long_option, "force-raw-format")) {
656                         option_values.force_raw_format = true;
657                 }
658                 else if(0 == strcmp(long_option, "lax")) {
659                         option_values.lax = true;
660                 }
661                 else if(0 == strcmp(long_option, "replay-gain")) {
662                         option_values.replay_gain = true;
663                 }
664                 else if(0 == strcmp(long_option, "sector-align")) {
665                         option_values.sector_align = true;
666                 }
667 #ifdef FLAC__HAS_OGG
668                 else if(0 == strcmp(long_option, "ogg")) {
669                         option_values.use_ogg = true;
670                 }
671                 else if(0 == strcmp(long_option, "serial-number")) {
672                         option_values.has_serial_number = true;
673                         option_values.serial_number = atol(option_argument);
674                 }
675 #endif
676                 else if(0 == strcmp(long_option, "endian")) {
677                         FLAC__ASSERT(0 != option_argument);
678                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
679                                 option_values.format_is_big_endian = true;
680                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
681                                 option_values.format_is_big_endian = false;
682                         else
683                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
684                 }
685                 else if(0 == strcmp(long_option, "channels")) {
686                         FLAC__ASSERT(0 != option_argument);
687                         option_values.format_channels = atoi(option_argument);
688                 }
689                 else if(0 == strcmp(long_option, "bps")) {
690                         FLAC__ASSERT(0 != option_argument);
691                         option_values.format_bps = atoi(option_argument);
692                 }
693                 else if(0 == strcmp(long_option, "sample-rate")) {
694                         FLAC__ASSERT(0 != option_argument);
695                         option_values.format_sample_rate = atoi(option_argument);
696                 }
697                 else if(0 == strcmp(long_option, "sign")) {
698                         FLAC__ASSERT(0 != option_argument);
699                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
700                                 option_values.format_is_unsigned_samples = false;
701                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
702                                 option_values.format_is_unsigned_samples = true;
703                         else
704                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
705                 }
706                 else if(0 == strcmp(long_option, "residual-gnu-plot")) {
707                         option_values.aopts.do_residual_gnuplot = true;
708                 }
709                 else if(0 == strcmp(long_option, "residual-text")) {
710                         option_values.aopts.do_residual_text = true;
711                 }
712                 /*
713                  * negatives
714                  */
715                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
716                         option_values.continue_through_decode_errors = false;
717                 }
718                 else if(0 == strcmp(long_option, "no-silent")) {
719                         option_values.verbose = true;
720                 }
721                 else if(0 == strcmp(long_option, "no-seektable")) {
722                         option_values.num_requested_seek_points = 0;
723                         option_values.requested_seek_points[0] = '\0';
724                 }
725                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
726                         option_values.delete_input = false;
727                 }
728                 else if(0 == strcmp(long_option, "no-replay-gain")) {
729                         option_values.replay_gain = false;
730                 }
731                 else if(0 == strcmp(long_option, "no-sector-align")) {
732                         option_values.sector_align = false;
733                 }
734                 else if(0 == strcmp(long_option, "no-lax")) {
735                         option_values.lax = false;
736                 }
737 #ifdef FLAC__HAS_OGG
738                 else if(0 == strcmp(long_option, "no-ogg")) {
739                         option_values.use_ogg = false;
740                 }
741 #endif
742                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
743                         option_values.do_exhaustive_model_search = false;
744                 }
745 #if 0
746                 /* @@@ deprecated: */
747                 else if(0 == strcmp(long_option, "no-escape-coding")) {
748                         option_values.do_escape_coding = false;
749                 }
750 #endif
751                 else if(0 == strcmp(long_option, "no-mid-side")) {
752                         option_values.do_mid_side = option_values.loose_mid_side = false;
753                 }
754                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
755                         option_values.loose_mid_side = option_values.do_mid_side = false;
756                 }
757                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
758                         option_values.do_qlp_coeff_prec_search = false;
759                 }
760                 else if(0 == strcmp(long_option, "no-padding")) {
761                         option_values.padding = -1;
762                 }
763                 else if(0 == strcmp(long_option, "no-verify")) {
764                         option_values.verify = false;
765                 }
766                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
767                         option_values.aopts.do_residual_gnuplot = false;
768                 }
769                 else if(0 == strcmp(long_option, "no-residual-text")) {
770                         option_values.aopts.do_residual_text = false;
771                 }
772                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
773                         option_values.debug.disable_constant_subframes = true;
774                 }
775                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
776                         option_values.debug.disable_fixed_subframes = true;
777                 }
778                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
779                         option_values.debug.disable_verbatim_subframes = true;
780                 }
781         }
782         else {
783                 const char *violation;
784                 switch(short_option) {
785                         case 'h':
786                                 option_values.show_help = true;
787                                 break;
788                         case 'H':
789                                 option_values.show_explain = true;
790                                 break;
791                         case 'v':
792                                 option_values.show_version = true;
793                                 break;
794                         case 'd':
795                                 option_values.mode_decode = true;
796                                 break;
797                         case 'a':
798                                 option_values.mode_decode = true;
799                                 option_values.analyze = true;
800                                 break;
801                         case 't':
802                                 option_values.mode_decode = true;
803                                 option_values.test_only = true;
804                                 break;
805                         case 'c':
806                                 option_values.force_to_stdout = true;
807                                 break;
808                         case 's':
809                                 option_values.verbose = false;
810                                 break;
811                         case 'o':
812                                 FLAC__ASSERT(0 != option_argument);
813                                 option_values.cmdline_forced_outfilename = option_argument;
814                                 break;
815                         case 'F':
816                                 option_values.continue_through_decode_errors = true;
817                                 break;
818                         case 'T':
819                                 FLAC__ASSERT(0 != option_argument);
820                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, &violation))
821                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
822                                 break;
823                         case '0':
824                                 option_values.do_exhaustive_model_search = false;
825                                 option_values.do_escape_coding = false;
826                                 option_values.do_mid_side = false;
827                                 option_values.loose_mid_side = false;
828                                 option_values.qlp_coeff_precision = 0;
829                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
830                                 option_values.rice_parameter_search_dist = 0;
831                                 option_values.max_lpc_order = 0;
832                                 break;
833                         case '1':
834                                 option_values.do_exhaustive_model_search = false;
835                                 option_values.do_escape_coding = false;
836                                 option_values.do_mid_side = true;
837                                 option_values.loose_mid_side = true;
838                                 option_values.qlp_coeff_precision = 0;
839                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
840                                 option_values.rice_parameter_search_dist = 0;
841                                 option_values.max_lpc_order = 0;
842                                 break;
843                         case '2':
844                                 option_values.do_exhaustive_model_search = false;
845                                 option_values.do_escape_coding = false;
846                                 option_values.do_mid_side = true;
847                                 option_values.loose_mid_side = false;
848                                 option_values.qlp_coeff_precision = 0;
849                                 option_values.min_residual_partition_order = 0;
850                                 option_values.max_residual_partition_order = 3;
851                                 option_values.rice_parameter_search_dist = 0;
852                                 option_values.max_lpc_order = 0;
853                                 break;
854                         case '3':
855                                 option_values.do_exhaustive_model_search = false;
856                                 option_values.do_escape_coding = false;
857                                 option_values.do_mid_side = false;
858                                 option_values.loose_mid_side = false;
859                                 option_values.qlp_coeff_precision = 0;
860                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
861                                 option_values.rice_parameter_search_dist = 0;
862                                 option_values.max_lpc_order = 6;
863                                 break;
864                         case '4':
865                                 option_values.do_exhaustive_model_search = false;
866                                 option_values.do_escape_coding = false;
867                                 option_values.do_mid_side = true;
868                                 option_values.loose_mid_side = true;
869                                 option_values.qlp_coeff_precision = 0;
870                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
871                                 option_values.rice_parameter_search_dist = 0;
872                                 option_values.max_lpc_order = 8;
873                                 break;
874                         case '5':
875                                 option_values.do_exhaustive_model_search = false;
876                                 option_values.do_escape_coding = false;
877                                 option_values.do_mid_side = true;
878                                 option_values.loose_mid_side = false;
879                                 option_values.qlp_coeff_precision = 0;
880                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
881                                 option_values.rice_parameter_search_dist = 0;
882                                 option_values.max_lpc_order = 8;
883                                 break;
884                         case '6':
885                                 option_values.do_exhaustive_model_search = false;
886                                 option_values.do_escape_coding = false;
887                                 option_values.do_mid_side = true;
888                                 option_values.loose_mid_side = false;
889                                 option_values.qlp_coeff_precision = 0;
890                                 option_values.min_residual_partition_order = 0;
891                                 option_values.max_residual_partition_order = 4;
892                                 option_values.rice_parameter_search_dist = 0;
893                                 option_values.max_lpc_order = 8;
894                                 break;
895                         case '7':
896                                 option_values.do_exhaustive_model_search = true;
897                                 option_values.do_escape_coding = false;
898                                 option_values.do_mid_side = true;
899                                 option_values.loose_mid_side = false;
900                                 option_values.qlp_coeff_precision = 0;
901                                 option_values.min_residual_partition_order = 0;
902                                 option_values.max_residual_partition_order = 6;
903                                 option_values.rice_parameter_search_dist = 0;
904                                 option_values.max_lpc_order = 8;
905                                 break;
906                         case '8':
907                                 option_values.do_exhaustive_model_search = true;
908                                 option_values.do_escape_coding = false;
909                                 option_values.do_mid_side = true;
910                                 option_values.loose_mid_side = false;
911                                 option_values.qlp_coeff_precision = 0;
912                                 option_values.min_residual_partition_order = 0;
913                                 option_values.max_residual_partition_order = 6;
914                                 option_values.rice_parameter_search_dist = 0;
915                                 option_values.max_lpc_order = 12;
916                                 break;
917                         case '9':
918                                 return usage_error("ERROR: compression level '9' is reserved\n");
919                         case 'V':
920                                 option_values.verify = true;
921                                 break;
922                         case 'S':
923                                 FLAC__ASSERT(0 != option_argument);
924                                 if(option_values.num_requested_seek_points < 0)
925                                         option_values.num_requested_seek_points = 0;
926                                 option_values.num_requested_seek_points++;
927                                 if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
928                                         return usage_error("ERROR: too many seekpoints requested\n");
929                                 }
930                                 else {
931                                         strcat(option_values.requested_seek_points, option_argument);
932                                         strcat(option_values.requested_seek_points, ";");
933                                 }
934                                 break;
935                         case 'P':
936                                 FLAC__ASSERT(0 != option_argument);
937                                 option_values.padding = atoi(option_argument);
938                                 if(option_values.padding < 0)
939                                         return usage_error("ERROR: argument to -P must be >= 0\n");
940                                 break;
941                         case 'b':
942                                 FLAC__ASSERT(0 != option_argument);
943                                 option_values.blocksize = atoi(option_argument);
944                                 break;
945                         case 'e':
946                                 option_values.do_exhaustive_model_search = true;
947                                 break;
948                         case 'E':
949                                 option_values.do_escape_coding = true;
950                                 break;
951                         case 'l':
952                                 FLAC__ASSERT(0 != option_argument);
953                                 option_values.max_lpc_order = atoi(option_argument);
954                                 break;
955                         case 'm':
956                                 option_values.do_mid_side = true;
957                                 option_values.loose_mid_side = false;
958                                 break;
959                         case 'M':
960                                 option_values.loose_mid_side = option_values.do_mid_side = true;
961                                 break;
962                         case 'p':
963                                 option_values.do_qlp_coeff_prec_search = true;
964                                 break;
965                         case 'q':
966                                 FLAC__ASSERT(0 != option_argument);
967                                 option_values.qlp_coeff_precision = atoi(option_argument);
968                                 break;
969                         case 'r':
970                                 FLAC__ASSERT(0 != option_argument);
971                                 p = strchr(option_argument, ',');
972                                 if(0 == p) {
973                                         option_values.min_residual_partition_order = 0;
974                                         option_values.max_residual_partition_order = atoi(option_argument);
975                                 }
976                                 else {
977                                         option_values.min_residual_partition_order = atoi(option_argument);
978                                         option_values.max_residual_partition_order = atoi(++p);
979                                 }
980                                 break;
981                         case 'R':
982                                 FLAC__ASSERT(0 != option_argument);
983                                 option_values.rice_parameter_search_dist = atoi(option_argument);
984                                 break;
985                         default:
986                                 FLAC__ASSERT(0);
987                 }
988         }
989
990         return 0;
991 }
992
993 void free_options()
994 {
995         unsigned i;
996         if(0 != option_values.filenames) {
997                 for(i = 0; i < option_values.num_files; i++) {
998                         if(0 != option_values.filenames[i])
999                                 free(option_values.filenames[i]);
1000                 }
1001                 free(option_values.filenames);
1002         }
1003         if(0 != option_values.vorbis_comment)
1004                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1005 }
1006
1007 int usage_error(const char *message, ...)
1008 {
1009         va_list args;
1010
1011         FLAC__ASSERT(0 != message);
1012
1013         va_start(args, message);
1014
1015         (void) vfprintf(stderr, message, args);
1016
1017         va_end(args);
1018
1019         printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1020
1021         return 1;
1022 }
1023
1024 void show_version()
1025 {
1026         printf("flac %s\n", FLAC__VERSION_STRING);
1027 }
1028
1029 static void usage_header()
1030 {
1031         printf("===============================================================================\n");
1032         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1033         printf("Copyright (C) 2000,2001,2002  Josh Coalson\n");
1034         printf("\n");
1035         printf("This program is free software; you can redistribute it and/or\n");
1036         printf("modify it under the terms of the GNU General Public License\n");
1037         printf("as published by the Free Software Foundation; either version 2\n");
1038         printf("of the License, or (at your option) any later version.\n");
1039         printf("\n");
1040         printf("This program is distributed in the hope that it will be useful,\n");
1041         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1042         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1043         printf("GNU General Public License for more details.\n");
1044         printf("\n");
1045         printf("You should have received a copy of the GNU General Public License\n");
1046         printf("along with this program; if not, write to the Free Software\n");
1047         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1048         printf("===============================================================================\n");
1049 }
1050
1051 static void usage_summary()
1052 {
1053         printf("Usage:\n");
1054         printf("\n");
1055         printf(" Encoding: flac [-s] [--skip #] [<encoding/format-options>] [INPUTFILE [...]]\n");
1056         printf(" Decoding: flac -d [-s] [--skip #] [-F] [<format-options>] [INPUTFILE [...]]\n");
1057         printf("  Testing: flac -t [-s] [INPUTFILE [...]]\n");
1058         printf("Analyzing: flac -a [-s] [--skip #] [<analysis-options>] [INPUTFILE [...]]\n");
1059         printf("\n");
1060 }
1061
1062 void short_usage()
1063 {
1064         usage_header();
1065         printf("\n");
1066         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1067         printf("instructions use 'flac --explain'\n");
1068         printf("\n");
1069         printf("To encode:\n");
1070         printf("  flac [-#] [INPUTFILE [...]]\n");
1071         printf("\n");
1072         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1073         printf("\n");
1074         printf("To decode:\n");
1075         printf("  flac -d [INPUTFILE [...]]\n");
1076         printf("\n");
1077         printf("To test:\n");
1078         printf("  flac -t [INPUTFILE [...]]\n");
1079 }
1080
1081 void show_help()
1082 {
1083         usage_header();
1084         usage_summary();
1085         printf("generic options:\n");
1086         printf("  -v, --version                Show the flac version number\n");
1087         printf("  -h, --help                   Show this screen\n");
1088         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1089         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1090         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1091         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1092         printf("  -c, --stdout                 Write output to stdout\n");
1093         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1094         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1095         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1096         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1097         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1098         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1099         printf("analysis options:\n");
1100         printf("      --residual-text          Include residual signal in text output\n");
1101         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1102         printf("decoding options:\n");
1103         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1104         printf("encoding options:\n");
1105         printf("  -V, --verify                 Verify a correct encoding\n");
1106 #ifdef FLAC__HAS_OGG
1107         printf("      --ogg                    Use Ogg as transport layer\n");
1108         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1109 #endif
1110         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1111         printf("      --sector-align           Align multiple files on sector boundaries\n");
1112         printf("      --replay-gain            Calculate ReplayGain & store in Vorbis comments\n");
1113         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1114         printf("  -T, --tag=FIELD=VALUE        Add a Vorbis comment; may appear multiple times\n");
1115         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1116         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1117         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1118         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1119         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1120         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1121         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1122         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1123         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1124         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1125         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1126         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1127         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1128         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1129         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1130 #if 0
1131         /*@@@ deprecated: */
1132         printf("  -E, --escape-coding                Do escape coding in the entropy coder\n");
1133 #endif
1134         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1135         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1136         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1137         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1138 #if 0
1139         /*@@@ deprecated: */
1140         printf("  -R, -rice-parameter-search-distance=#   Rice parameter search distance\n");
1141 #endif
1142         printf("format options:\n");
1143         printf("      --endian={big|little}    Set byte order for samples\n");
1144         printf("      --channels=#             Number of channels\n");
1145         printf("      --bps=#                  Number of bits per sample\n");
1146         printf("      --sample-rate=#          Sample rate in Hz\n");
1147         printf("      --sign={signed|unsigned} Sign of samples\n");
1148         printf("      --force-raw-format       Treat input or output as raw samples\n");
1149         printf("negative options:\n");
1150         printf("      --no-adaptive-mid-side\n");
1151         printf("      --no-decode-through-errors\n");
1152         printf("      --no-delete-input-file\n");
1153 #if 0
1154 /* @@@ deprecated: */
1155         printf("      --no-escape-coding\n");
1156 #endif
1157         printf("      --no-exhaustive-model-search\n");
1158         printf("      --no-lax\n");
1159         printf("      --no-mid-side\n");
1160 #ifdef FLAC__HAS_OGG
1161         printf("      --no-ogg\n");
1162 #endif
1163         printf("      --no-padding\n");
1164         printf("      --no-qlp-coeff-prec-search\n");
1165         printf("      --no-replay-gain\n");
1166         printf("      --no-residual-gnuplot\n");
1167         printf("      --no-residual-text\n");
1168         printf("      --no-sector-align\n");
1169         printf("      --no-seektable\n");
1170         printf("      --no-silent\n");
1171         printf("      --no-verify\n");
1172 }
1173
1174 void show_explain()
1175 {
1176         usage_header();
1177         usage_summary();
1178         printf("For encoding:\n");
1179         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF file, or raw samples.\n");
1180         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1181         printf("For decoding, the reverse is true.\n");
1182         printf("\n");
1183         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1184         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1185         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1186         printf("instead of:\n");
1187         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1188         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1189         printf("WAVE/AIFF header contents when necessary.\n");
1190         printf("\n");
1191         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1192         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1193         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1194         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1195         printf("files using -fr.\n");
1196         printf("\n");
1197         printf("generic options:\n");
1198         printf("  -v, --version                Show the flac version number\n");
1199         printf("  -h, --help                   Show basic usage a list of all options\n");
1200         printf("  -H, --explain                Show this screen\n");
1201         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1202         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1203         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1204         printf("  -c, --stdout                 Write output to stdout\n");
1205         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1206         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1207         printf("                               changes the extension.  May only be used when\n");
1208         printf("                               encoding a single file.  May not be used in\n");
1209         printf("                               conjunction with --output-prefix.\n");
1210         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1211         printf("                               STRING.  This can be useful for encoding or\n");
1212         printf("                               decoding files to a different directory.  Make\n");
1213         printf("                               sure if your STRING is a path name that it ends\n");
1214         printf("                               with a '/' slash.\n");
1215         printf("      --delete-input-file      Automatically delete the input file after a\n");
1216         printf("                               successful encode or decode.  If there was an\n");
1217         printf("                               error (including a verify error) the input file\n");
1218         printf("                               is left intact.\n");
1219         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1220         printf("                               be used both for encoding and decoding.  The\n");
1221         printf("                               alternative form mm:ss.ss can be used to specify\n");
1222         printf("                               minutes, seconds, and fractions of a second.\n");
1223         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file@@@@\n");
1224         printf("analysis options:\n");
1225         printf("      --residual-text          Include residual signal in text output.  This\n");
1226         printf("                               will make the file very big, much larger than\n");
1227         printf("                               even the decoded file.\n");
1228         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1229         printf("                               of each subframe\n");
1230         printf("decoding options:\n");
1231         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1232         printf("                               and removes the partially decoded file if it\n");
1233         printf("                               encounters a bitstream error.  With -F, errors\n");
1234         printf("                               are still printed but flac will continue\n");
1235         printf("                               decoding to completion.  Note that errors may\n");
1236         printf("                               cause the decoded audio to be missing some\n");
1237         printf("                               samples or have silent sections.\n");
1238         printf("encoding options:\n");
1239         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1240         printf("                               output in parallel and comparing to the\n");
1241         printf("                               original\n");
1242 #ifdef FLAC__HAS_OGG
1243         printf("      --ogg                    When encoding, generate Ogg-FLAC output instead\n");
1244         printf("                               of native-FLAC.  Ogg-FLAC streams are FLAC\n");
1245         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1246         printf("                               resulting file should have an '.ogg' extension\n");
1247         printf("                               and will still be decodable by flac.  When\n");
1248         printf("                               decoding, force the input to be treated as\n");
1249         printf("                               Ogg-FLAC.  This is useful when piping input\n");
1250         printf("                               from stdin or when the filename does not end in\n");
1251         printf("                               '.ogg'.\n");
1252         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1253         printf("                               encoding and no serial number is given, flac\n");
1254         printf("                               uses '0'.  When decoding and no number is\n");
1255         printf("                               given, flac uses the serial number of the first\n");
1256         printf("                               page.\n");
1257 #endif
1258         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1259         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1260         printf("                               on sector boundaries.\n");
1261         printf("      --replay-gain            Calculate ReplayGain values and store in Vorbis\n");
1262         printf("                               comments.  Title gains/peaks will be computed\n");
1263         printf("                               for each file, and an album gain/peak will be\n");
1264         printf("                               computed for all files.  All input files must\n");
1265         printf("                               have the same resolution, sample rate, and\n");
1266         printf("                               number of channels.  The sample rate must be\n");
1267         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1268         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1269         printf("                               few extra bytes in the PADDING block.\n");
1270         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1271         printf("                               a CUESHEET metadata block.  This option may only\n");
1272         printf("                               be used when encoding a single file.  A\n");
1273         printf("                               seekpoint will be added for each index point in\n");
1274         printf("                               the cuesheet to the SEEKTABLE unless\n");
1275         printf("                               --no-cued-seekpoints is specified.\n");
1276         printf("  -T, --tag=FIELD=VALUE        Add a Vorbis comment.  Make sure to quote the\n");
1277         printf("                               comment if necessary.  This option may appear\n");
1278         printf("                               more than once to add several comments.  NOTE:\n");
1279         printf("                               all tags will be added to all encoded files.\n");
1280         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1281         printf("       #  : a specific sample number for a seek point\n");
1282         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1283         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1284         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1285         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1286         printf("           ified union of all such values.\n");
1287         printf("     With no -S options, flac defaults to '-S 100x'.  Use -S- for no SEEKTABLE.\n");
1288         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1289         printf("           input size before starting.\n");
1290         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1291         printf("           either no seek point entered (if the input size is determinable\n");
1292         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1293         printf("           determinable)\n");
1294         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1295         printf("                               block of the given length (in bytes) after the\n");
1296         printf("                               STREAMINFO block.  This is useful if you plan\n");
1297         printf("                               to tag the file later with an APPLICATION\n");
1298         printf("                               block; instead of having to rewrite the entire\n");
1299         printf("                               file later just to insert your block, you can\n");
1300         printf("                               write directly over the PADDING block.  Note\n");
1301         printf("                               that the total length of the PADDING block will\n");
1302         printf("                               be 4 bytes longer than the length given because\n");
1303         printf("                               of the 4 metadata block header bytes.  You can\n");
1304         printf("                               force no PADDING block at all to be written with\n");
1305         printf("                               --no-padding, which is the default.\n");
1306         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1307         printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
1308         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1309         printf("                               4096, 8192, 16384, or 32768 (unless --lax is\n");
1310         printf("                               used)\n");
1311         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1312         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1313         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1314         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1315         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1316         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1317         printf("                                     -5 is the default setting\n");
1318         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1319         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1320         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1321         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1322         printf("                                     (stereo only)\n");
1323         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1324         printf("                                     (stereo only)\n");
1325         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1326 #if 0
1327         /*@@@ deprecated: */
1328         printf("  -E, --escape-coding                Do escape coding in the entropy coder.\n");
1329         printf("                                     This causes the encoder to use an\n");
1330         printf("                                     unencoded representation of the residual\n");
1331         printf("                                     in a partition if it is smaller.  It\n");
1332         printf("                                     increases the runtime and usually results\n");
1333         printf("                                     in an improvement of less than 1%.\n");
1334 #endif
1335         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1336         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1337         printf("                                     quantization (expensive!); overrides -q;\n");
1338         printf("                                     does nothing if using -l 0\n");
1339         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1340         printf("                                     linear-predictor coefficients; 0 => let\n");
1341         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1342         printf("                                     default is -q 0)\n");
1343         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1344         printf("                                     (# is 0..16; min defaults to 0; the\n");
1345         printf("                                     default is -r 0; above 4 doesn't usually\n");
1346         printf("                                     help much)\n");
1347 #if 0
1348         /*@@@ deprecated: */
1349         printf("  -R, -rice-parameter-search-distance=#   Rice parameter search distance\n");
1350 #endif
1351         printf("format options:\n");
1352         printf("      --endian={big|little}    Set byte order for samples\n");
1353         printf("      --channels=#             Number of channels\n");
1354         printf("      --bps=#                  Number of bits per sample\n");
1355         printf("      --sample-rate=#          Sample rate in Hz\n");
1356         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1357         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1358         printf("                               decoding) to be treated as raw samples\n");
1359         printf("negative options:\n");
1360         printf("      --no-adaptive-mid-side\n");
1361         printf("      --no-decode-through-errors\n");
1362         printf("      --no-delete-input-file\n");
1363 #if 0
1364 /* @@@ deprecated: */
1365         printf("      --no-escape-coding\n");
1366 #endif
1367         printf("      --no-exhaustive-model-search\n");
1368         printf("      --no-lax\n");
1369         printf("      --no-mid-side\n");
1370 #ifdef FLAC__HAS_OGG
1371         printf("      --no-ogg\n");
1372 #endif
1373         printf("      --no-padding\n");
1374         printf("      --no-qlp-coeff-prec-search\n");
1375         printf("      --no-residual-gnuplot\n");
1376         printf("      --no-residual-text\n");
1377         printf("      --no-sector-align\n");
1378         printf("      --no-seektable\n");
1379         printf("      --no-silent\n");
1380         printf("      --no-verify\n");
1381 }
1382
1383 void
1384 format_mistake(const char *infilename, const char *wrong, const char *right)
1385 {
1386         fprintf(stderr, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1387 }
1388
1389 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1390 {
1391         FILE *encode_infile;
1392         FLAC__byte lookahead[12];
1393         unsigned lookahead_length = 0;
1394         FileFormat fmt= RAW;
1395         int retval;
1396         long infilesize;
1397         encode_options_t common_options;
1398         const char *outfilename = get_encoded_outfilename(infilename);
1399
1400         if(0 == strcmp(infilename, "-")) {
1401                 infilesize = -1;
1402                 encode_infile = grabbag__file_get_binary_stdin();
1403         }
1404         else {
1405                 infilesize = grabbag__file_get_filesize(infilename);
1406                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1407                         fprintf(stderr, "ERROR: can't open input file %s\n", infilename);
1408                         return 1;
1409                 }
1410         }
1411
1412         if(!option_values.force_raw_format) {
1413                 /* first set format based on name */
1414                 if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
1415                         fmt= WAV;
1416                 else if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".aif"))
1417                         fmt= AIF;
1418                 else if(strlen(infilename) > 4 && 0 == strcasecmp(infilename+(strlen(infilename)-5), ".aiff"))
1419                         fmt= AIF;
1420
1421                 /* attempt to guess the file type based on the first 12 bytes */
1422                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1423                         if(fmt != RAW)
1424                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1425                         fmt= RAW;
1426                 }
1427                 else {
1428                         if(!strncmp(lookahead, "RIFF", 4) && !strncmp(lookahead+8, "WAVE", 4))
1429                                 fmt= WAV;
1430                         else if(!strncmp(lookahead, "FORM", 4) && !strncmp(lookahead+8, "AIFF", 4))
1431                                 fmt= AIF;
1432                         else {
1433                                 if(fmt != RAW)
1434                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1435                                 fmt= RAW;
1436                         }
1437                 }
1438         }
1439
1440         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1441                 fprintf(stderr, "ERROR: can't --sector-align when the input size is unknown\n");
1442                 return 1;
1443         }
1444
1445         if(fmt == RAW) {
1446                 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)
1447                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1448         }
1449
1450         if(encode_infile == stdin || option_values.force_to_stdout) {
1451                 if(option_values.replay_gain)
1452                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1453         }
1454
1455         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1456                 return usage_error("ERROR: invalid value for --skip\n");
1457
1458         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &common_options.until_specification)) //@@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code
1459                 return usage_error("ERROR: invalid value for --until\n");
1460         /* if there is no "--until" we want to default to "--until=-0" */
1461         if(0 == option_values.until_specification)
1462                 common_options.until_specification.is_relative = true;
1463
1464         common_options.verbose = option_values.verbose;
1465         common_options.verify = option_values.verify;
1466 #ifdef FLAC__HAS_OGG
1467         common_options.use_ogg = option_values.use_ogg;
1468         common_options.has_serial_number = option_values.has_serial_number;
1469         common_options.serial_number = option_values.serial_number;
1470 #endif
1471         common_options.lax = option_values.lax;
1472         common_options.do_mid_side = option_values.do_mid_side;
1473         common_options.loose_mid_side = option_values.loose_mid_side;
1474         common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
1475         common_options.do_escape_coding = option_values.do_escape_coding;
1476         common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
1477         common_options.min_residual_partition_order = option_values.min_residual_partition_order;
1478         common_options.max_residual_partition_order = option_values.max_residual_partition_order;
1479         common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
1480         common_options.max_lpc_order = option_values.max_lpc_order;
1481         common_options.blocksize = (unsigned)option_values.blocksize;
1482         common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
1483         common_options.padding = option_values.padding;
1484         common_options.requested_seek_points = option_values.requested_seek_points;
1485         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1486         common_options.cuesheet_filename = option_values.cuesheet_filename;
1487         common_options.cued_seekpoints = option_values.cued_seekpoints;
1488         common_options.is_first_file = is_first_file;
1489         common_options.is_last_file = is_last_file;
1490         common_options.align_reservoir = align_reservoir;
1491         common_options.align_reservoir_samples = &align_reservoir_samples;
1492         common_options.replay_gain = option_values.replay_gain;
1493         common_options.sector_align = option_values.sector_align;
1494         common_options.vorbis_comment = option_values.vorbis_comment;
1495         common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1496         common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1497         common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1498
1499         if(fmt == RAW) {
1500                 raw_encode_options_t options;
1501
1502                 options.common = common_options;
1503                 options.is_big_endian = option_values.format_is_big_endian;
1504                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1505                 options.channels = option_values.format_channels;
1506                 options.bps = option_values.format_bps;
1507                 options.sample_rate = option_values.format_sample_rate;
1508
1509                 retval = flac__encode_raw(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
1510         }
1511         else {
1512                 wav_encode_options_t options;
1513
1514                 options.common = common_options;
1515
1516                 if(fmt == AIF)
1517                         retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
1518                 else
1519                         retval = flac__encode_wav(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
1520         }
1521
1522         if(retval == 0 && strcmp(infilename, "-")) {
1523                 if(strcmp(outfilename, "-")) {
1524                         if(option_values.replay_gain) {
1525                                 float title_gain, title_peak;
1526                                 const char *error;
1527                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1528                                 if(0 != (error = grabbag__replaygain_store_to_file_title(outfilename, title_gain, title_peak, /*preserve_modtime=*/true))) {
1529                                         fprintf(stderr, "%s: ERROR writing ReplayGain title tags\n", outfilename);
1530                                 }
1531                         }
1532                         grabbag__file_copy_metadata(infilename, outfilename);
1533                 }
1534                 if(option_values.delete_input)
1535                         unlink(infilename);
1536         }
1537
1538         return retval;
1539 }
1540
1541 int decode_file(const char *infilename)
1542 {
1543         int retval;
1544         FLAC__bool treat_as_ogg = false;
1545         decode_options_t common_options;
1546         const char *outfilename = get_decoded_outfilename(infilename);
1547
1548         if(!option_values.test_only && !option_values.analyze) {
1549                 if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
1550                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
1551         }
1552
1553         if(option_values.use_ogg)
1554                 treat_as_ogg = true;
1555         else if(0 == strcasecmp(infilename+(strlen(infilename)-4), ".ogg"))
1556                 treat_as_ogg = true;
1557         else
1558                 treat_as_ogg = false;
1559
1560 #ifndef FLAC__HAS_OGG
1561         if(treat_as_ogg) {
1562                 fprintf(stderr, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1563                 return 1;
1564         }
1565 #endif
1566
1567         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1568                 return usage_error("ERROR: invalid value for --skip\n");
1569
1570         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &common_options.until_specification)) //@@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code
1571                 return usage_error("ERROR: invalid value for --until\n");
1572         /* if there is no "--until" we want to default to "--until=-0" */
1573         if(0 == option_values.until_specification)
1574                 common_options.until_specification.is_relative = true;
1575
1576         common_options.verbose = option_values.verbose;
1577         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1578 #ifdef FLAC__HAS_OGG
1579         common_options.is_ogg = treat_as_ogg;
1580         common_options.use_first_serial_number = !option_values.has_serial_number;
1581         common_options.serial_number = option_values.serial_number;
1582 #endif
1583
1584         if(!option_values.force_raw_format) {
1585                 wav_decode_options_t options;
1586
1587                 options.common = common_options;
1588
1589                 retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1590         }
1591         else {
1592                 raw_decode_options_t options;
1593
1594                 options.common = common_options;
1595                 options.is_big_endian = option_values.format_is_big_endian;
1596                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1597
1598                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1599         }
1600
1601         if(retval == 0 && strcmp(infilename, "-")) {
1602                 if(strcmp(outfilename, "-"))
1603                         grabbag__file_copy_metadata(infilename, outfilename);
1604                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1605                         unlink(infilename);
1606         }
1607
1608         return retval;
1609 }
1610
1611 const char *get_encoded_outfilename(const char *infilename)
1612 {
1613         if(0 == option_values.cmdline_forced_outfilename) {
1614                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
1615
1616                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
1617                         strcpy(buffer, "-");
1618                 }
1619                 else {
1620                         const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
1621                         char *p;
1622                         strcpy(buffer, option_values.output_prefix? option_values.output_prefix : "");
1623                         strcat(buffer, infilename);
1624                         if(0 == (p = strrchr(buffer, '.')))
1625                                 strcat(buffer, suffix);
1626                         else {
1627                                 if(0 == strcmp(p, suffix)) {
1628                                         strcpy(p, "_new");
1629                                         strcat(p, suffix);
1630                                 }
1631                                 else
1632                                         strcpy(p, suffix);
1633                         }
1634                 }
1635                 return buffer;
1636         }
1637         else
1638                 return option_values.cmdline_forced_outfilename;
1639 }
1640
1641 const char *get_decoded_outfilename(const char *infilename)
1642 {
1643         if(0 == option_values.cmdline_forced_outfilename) {
1644                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
1645
1646                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
1647                         strcpy(buffer, "-");
1648                 }
1649                 else {
1650                         static const char *suffixes[] = { ".wav", ".raw", ".ana" };
1651                         const char *suffix = suffixes[option_values.analyze? 2 : option_values.force_raw_format? 1 : 0];
1652                         char *p;
1653                         strcpy(buffer, option_values.output_prefix? option_values.output_prefix : "");
1654                         strcat(buffer, infilename);
1655                         if(0 == (p = strrchr(buffer, '.')))
1656                                 strcat(buffer, suffix);
1657                         else {
1658                                 if(0 == strcmp(p, suffix)) {
1659                                         strcpy(p, "_new");
1660                                         strcat(p, suffix);
1661                                 }
1662                                 else
1663                                         strcpy(p, suffix);
1664                         }
1665                 }
1666                 return buffer;
1667         }
1668         else
1669                 return option_values.cmdline_forced_outfilename;
1670 }
1671
1672 void die(const char *message)
1673 {
1674         FLAC__ASSERT(0 != message);
1675         fprintf(stderr, "ERROR: %s\n", message);
1676         exit(1);
1677 }
1678
1679 char *local_strdup(const char *source)
1680 {
1681         char *ret;
1682         FLAC__ASSERT(0 != source);
1683         if(0 == (ret = strdup(source)))
1684                 die("out of memory during strdup()");
1685         return ret;
1686 }