add undocumented option to flac: --ignore-chunk-sizes
[flac.git] / src / flac / main.c
1 /* flac - Command-line FLAC encoder/decoder
2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  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 #if HAVE_CONFIG_H
20 #  include <config.h>
21 #endif
22
23 #include <ctype.h>
24 #include <errno.h>
25 #include <locale.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <time.h>
31
32 #if !defined _MSC_VER && !defined __MINGW32__
33 /* unlink is in stdio.h in VC++ */
34 #include <unistd.h> /* for unlink() */
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 "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
42 #include "utils.h"
43 #include "vorbiscomment.h"
44
45 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
46 #define FLAC__STRCASECMP stricmp
47 #else
48 #define FLAC__STRCASECMP strcasecmp
49 #endif
50
51 #if 0
52 /*[JEC] was:#if HAVE_GETOPT_LONG*/
53 /*[JEC] see flac/include/share/getopt.h as to why the change */
54 #  include <getopt.h>
55 #else
56 #  include "share/getopt.h"
57 #endif
58
59 typedef enum { RAW, WAV, AIF, FLAC, OGGFLAC } FileFormat;
60
61 static int do_it(void);
62
63 static FLAC__bool init_options(void);
64 static int parse_options(int argc, char *argv[]);
65 static int parse_option(int short_option, const char *long_option, const char *option_argument);
66 static void free_options(void);
67 static void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value);
68 static void add_compression_setting_string(compression_setting_type_t type, const char *value);
69 static void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value);
70
71 static int usage_error(const char *message, ...);
72 static void short_usage(void);
73 static void show_version(void);
74 static void show_help(void);
75 static void show_explain(void);
76 static void format_mistake(const char *infilename, FileFormat wrong, FileFormat right);
77
78 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
79 static int decode_file(const char *infilename);
80
81 static const char *get_encoded_outfilename(const char *infilename);
82 static const char *get_decoded_outfilename(const char *infilename);
83 static const char *get_outfilename(const char *infilename, const char *suffix);
84
85 static void die(const char *message);
86 static int conditional_fclose(FILE *f);
87 static char *local_strdup(const char *source);
88 #ifdef _MSC_VER
89 /* There's no strtoll() in MSVC6 so we just write a specialized one */
90 static FLAC__int64 local__strtoll(const char *src, char **endptr);
91 #endif
92
93
94 /*
95  * share__getopt format struct; note that for long options with no
96  * short option equivalent we just set the 'val' field to 0.
97  */
98 static struct share__option long_options_[] = {
99         /*
100          * general options
101          */
102         { "help"              , share__no_argument, 0, 'h' },
103         { "explain"           , share__no_argument, 0, 'H' },
104         { "version"           , share__no_argument, 0, 'v' },
105         { "decode"            , share__no_argument, 0, 'd' },
106         { "analyze"           , share__no_argument, 0, 'a' },
107         { "test"              , share__no_argument, 0, 't' },
108         { "stdout"            , share__no_argument, 0, 'c' },
109         { "silent"            , share__no_argument, 0, 's' },
110         { "totally-silent"    , share__no_argument, 0, 0 },
111         { "warnings-as-errors", share__no_argument, 0, 'w' },
112         { "force"             , share__no_argument, 0, 'f' },
113         { "delete-input-file" , share__no_argument, 0, 0 },
114         { "output-prefix"     , share__required_argument, 0, 0 },
115         { "output-name"       , share__required_argument, 0, 'o' },
116         { "skip"              , share__required_argument, 0, 0 },
117         { "until"             , share__required_argument, 0, 0 },
118         { "channel-map"       , share__required_argument, 0, 0 }, /* undocumented */
119
120         /*
121          * decoding options
122          */
123         { "decode-through-errors", share__no_argument, 0, 'F' },
124         { "cue"                  , share__required_argument, 0, 0 },
125         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
126
127         /*
128          * encoding options
129          */
130         { "cuesheet"                  , share__required_argument, 0, 0 },
131         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
132         { "picture"                   , share__required_argument, 0, 0 },
133         { "tag"                       , share__required_argument, 0, 'T' },
134         { "tag-from-file"             , share__required_argument, 0, 0 },
135         { "compression-level-0"       , share__no_argument, 0, '0' },
136         { "compression-level-1"       , share__no_argument, 0, '1' },
137         { "compression-level-2"       , share__no_argument, 0, '2' },
138         { "compression-level-3"       , share__no_argument, 0, '3' },
139         { "compression-level-4"       , share__no_argument, 0, '4' },
140         { "compression-level-5"       , share__no_argument, 0, '5' },
141         { "compression-level-6"       , share__no_argument, 0, '6' },
142         { "compression-level-7"       , share__no_argument, 0, '7' },
143         { "compression-level-8"       , share__no_argument, 0, '8' },
144         { "compression-level-9"       , share__no_argument, 0, '9' },
145         { "best"                      , share__no_argument, 0, '8' },
146         { "fast"                      , share__no_argument, 0, '0' },
147         { "verify"                    , share__no_argument, 0, 'V' },
148         { "force-aiff-format"         , share__no_argument, 0, 0 },
149         { "force-raw-format"          , share__no_argument, 0, 0 },
150         { "lax"                       , share__no_argument, 0, 0 },
151         { "replay-gain"               , share__no_argument, 0, 0 },
152         { "ignore-chunk-sizes"        , share__no_argument, 0, 0 },
153         { "sector-align"              , share__no_argument, 0, 0 },
154         { "seekpoint"                 , share__required_argument, 0, 'S' },
155         { "padding"                   , share__required_argument, 0, 'P' },
156 #if FLAC__HAS_OGG
157         { "ogg"                       , share__no_argument, 0, 0 },
158         { "serial-number"             , share__required_argument, 0, 0 },
159 #endif
160         { "blocksize"                 , share__required_argument, 0, 'b' },
161         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
162         { "max-lpc-order"             , share__required_argument, 0, 'l' },
163         { "apodization"               , share__required_argument, 0, 'A' },
164         { "mid-side"                  , share__no_argument, 0, 'm' },
165         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
166         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
167         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
168         { "rice-partition-order"      , share__required_argument, 0, 'r' },
169         { "endian"                    , share__required_argument, 0, 0 },
170         { "channels"                  , share__required_argument, 0, 0 },
171         { "bps"                       , share__required_argument, 0, 0 },
172         { "sample-rate"               , share__required_argument, 0, 0 },
173         { "sign"                      , share__required_argument, 0, 0 },
174         { "input-size"                , share__required_argument, 0, 0 },
175
176         /*
177          * analysis options
178          */
179         { "residual-gnuplot", share__no_argument, 0, 0 },
180         { "residual-text", share__no_argument, 0, 0 },
181
182         /*
183          * negatives
184          */
185         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
186         { "no-silent"                 , share__no_argument, 0, 0 },
187         { "no-force"                  , share__no_argument, 0, 0 },
188         { "no-seektable"              , share__no_argument, 0, 0 },
189         { "no-delete-input-file"      , share__no_argument, 0, 0 },
190         { "no-replay-gain"            , share__no_argument, 0, 0 },
191         { "no-ignore-chunk-sizes"     , share__no_argument, 0, 0 },
192         { "no-sector-align"           , share__no_argument, 0, 0 },
193         { "no-lax"                    , share__no_argument, 0, 0 },
194 #if FLAC__HAS_OGG
195         { "no-ogg"                    , share__no_argument, 0, 0 },
196 #endif
197         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
198         { "no-mid-side"               , share__no_argument, 0, 0 },
199         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
200         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
201         { "no-padding"                , share__no_argument, 0, 0 },
202         { "no-verify"                 , share__no_argument, 0, 0 },
203         { "no-warnings-as-errors"     , share__no_argument, 0, 0 },
204         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
205         { "no-residual-text"          , share__no_argument, 0, 0 },
206         /*
207          * undocumented debugging options for the test suite
208          */
209         { "disable-constant-subframes", share__no_argument, 0, 0 },
210         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
211         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
212         { "no-md5-sum"                , share__no_argument, 0, 0 },
213
214         {0, 0, 0, 0}
215 };
216
217
218 /*
219  * global to hold command-line option values
220  */
221
222 static struct {
223         FLAC__bool show_help;
224         FLAC__bool show_explain;
225         FLAC__bool show_version;
226         FLAC__bool mode_decode;
227         FLAC__bool verify;
228         FLAC__bool treat_warnings_as_errors;
229         FLAC__bool force_file_overwrite;
230         FLAC__bool continue_through_decode_errors;
231         replaygain_synthesis_spec_t replaygain_synthesis_spec;
232         FLAC__bool lax;
233         FLAC__bool test_only;
234         FLAC__bool analyze;
235         FLAC__bool use_ogg;
236         FLAC__bool has_serial_number; /* true iff --serial-number was used */
237         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
238         FLAC__bool force_to_stdout;
239         FLAC__bool force_aiff_format;
240         FLAC__bool force_raw_format;
241         FLAC__bool delete_input;
242         FLAC__bool replay_gain;
243         FLAC__bool ignore_chunk_sizes;
244         FLAC__bool sector_align;
245         const char *cmdline_forced_outfilename;
246         const char *output_prefix;
247         analysis_options aopts;
248         int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
249         size_t num_compression_settings;
250         compression_setting_t compression_settings[64]; /* bad MAGIC NUMBER but buffer overflow is checked */
251         const char *skip_specification;
252         const char *until_specification;
253         const char *cue_specification;
254         int format_is_big_endian;
255         int format_is_unsigned_samples;
256         int format_channels;
257         int format_bps;
258         int format_sample_rate;
259         off_t format_input_size;
260         char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
261         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
262         const char *cuesheet_filename;
263         FLAC__bool cued_seekpoints;
264         FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
265
266         unsigned num_files;
267         char **filenames;
268
269         FLAC__StreamMetadata *vorbis_comment;
270         FLAC__StreamMetadata *pictures[64];
271         unsigned num_pictures;
272
273         struct {
274                 FLAC__bool disable_constant_subframes;
275                 FLAC__bool disable_fixed_subframes;
276                 FLAC__bool disable_verbatim_subframes;
277                 FLAC__bool do_md5;
278         } debug;
279 } option_values;
280
281
282 /*
283  * miscellaneous globals
284  */
285
286 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
287 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
288 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
289
290
291 int main(int argc, char *argv[])
292 {
293         int retval = 0;
294
295 #ifdef __EMX__
296         _response(&argc, &argv);
297         _wildcard(&argc, &argv);
298 #endif
299
300         srand((unsigned)time(0));
301         setlocale(LC_ALL, "");
302         if(!init_options()) {
303                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
304                 retval = 1;
305         }
306         else {
307                 if((retval = parse_options(argc, argv)) == 0)
308                         retval = do_it();
309         }
310
311         free_options();
312
313         return retval;
314 }
315
316 int do_it(void)
317 {
318         int retval = 0;
319
320         if(option_values.show_version) {
321                 show_version();
322                 return 0;
323         }
324         else if(option_values.show_explain) {
325                 show_explain();
326                 return 0;
327         }
328         else if(option_values.show_help) {
329                 show_help();
330                 return 0;
331         }
332         else {
333                 if(option_values.num_files == 0) {
334                         if(flac__utils_verbosity_ >= 1)
335                                 short_usage();
336                         return 0;
337                 }
338
339                 /*
340                  * tweak options; validate the values
341                  */
342                 if(!option_values.mode_decode) {
343                         if(0 != option_values.cue_specification)
344                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
345                 }
346                 else {
347                         if(option_values.test_only) {
348                                 if(0 != option_values.skip_specification)
349                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
350                                 if(0 != option_values.until_specification)
351                                         return usage_error("ERROR: --until is not allowed in test mode\n");
352                                 if(0 != option_values.cue_specification)
353                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
354                                 if(0 != option_values.analyze)
355                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
356                         }
357                 }
358
359                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
360                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
361
362                 if(option_values.format_channels >= 0) {
363                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
364                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
365                 }
366                 if(option_values.format_bps >= 0) {
367                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
368                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
369                 }
370                 if(option_values.format_sample_rate >= 0) {
371                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
372                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
373                 }
374                 if(option_values.force_raw_format && option_values.force_aiff_format)
375                         return usage_error("ERROR: only one of --force-raw-format and --force-aiff-format allowed\n");
376                 if(option_values.mode_decode) {
377                         if(!option_values.force_raw_format) {
378                                 if(option_values.format_is_big_endian >= 0)
379                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
380                                 if(option_values.format_is_unsigned_samples >= 0)
381                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
382                         }
383                         if(option_values.format_channels >= 0)
384                                 return usage_error("ERROR: --channels not allowed with --decode\n");
385                         if(option_values.format_bps >= 0)
386                                 return usage_error("ERROR: --bps not allowed with --decode\n");
387                         if(option_values.format_sample_rate >= 0)
388                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
389                 }
390
391                 if(option_values.ignore_chunk_sizes) {
392                         if(option_values.mode_decode)
393                                 return usage_error("ERROR: --ignore-chunk-sizes only allowed for encoding\n");
394                         if(0 != option_values.sector_align)
395                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --sector-align\n");
396                         if(0 != option_values.until_specification)
397                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --until\n");
398                         if(0 != option_values.cue_specification)
399                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cue\n");
400                         if(0 != option_values.cuesheet_filename)
401                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cuesheet\n");
402                 }
403                 if(option_values.sector_align) {
404                         if(option_values.mode_decode)
405                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
406                         if(0 != option_values.skip_specification)
407                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
408                         if(0 != option_values.until_specification)
409                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
410                         if(0 != option_values.cue_specification)
411                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
412                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
413                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
414                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
415                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
416                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
417                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
418                 }
419                 if(option_values.replay_gain) {
420                         if(option_values.force_to_stdout)
421                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
422                         if(option_values.mode_decode)
423                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
424                         if(option_values.format_channels > 2)
425                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
426                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
427                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
428                         /*
429                          * We want to reserve padding space for the ReplayGain
430                          * tags that we will set later, to avoid rewriting the
431                          * whole file.
432                          */
433                         if(option_values.padding <= 0) {
434                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
435                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
436                         }
437                         else {
438                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
439                         }
440                 }
441                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
442                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
443                 }
444                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
445                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
446                 }
447                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
448                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
449                 }
450         }
451
452         flac__utils_printf(stderr, 2, "\n");
453         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson\n", FLAC__VERSION_STRING);
454         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
455         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
456
457         if(option_values.mode_decode) {
458                 FLAC__bool first = true;
459
460                 if(option_values.num_files == 0) {
461                         retval = decode_file("-");
462                 }
463                 else {
464                         unsigned i;
465                         if(option_values.num_files > 1)
466                                 option_values.cmdline_forced_outfilename = 0;
467                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
468                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
469                                         continue;
470                                 retval |= decode_file(option_values.filenames[i]);
471                                 first = false;
472                         }
473                 }
474         }
475         else { /* encode */
476                 FLAC__bool first = true;
477
478                 if(option_values.ignore_chunk_sizes)
479                         flac__utils_printf(stderr, 1, "INFO: Make sure you know what you're doing when using --ignore-chunk-sizes.\n      Improper use can cause flac to encode non-audio data as audio.\n");
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 == outfilename) {
500                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
501                                                 return 1;
502                                         }
503                                         if(0 == strcmp(option_values.filenames[i], "-")) {
504                                                 FLAC__ASSERT(0);
505                                                 /* double protection */
506                                                 flac__utils_printf(stderr, 1, "internal error\n");
507                                                 return 2;
508                                         }
509                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
510                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
511                                                 retval = 1;
512                                         }
513                                 }
514                         }
515                 }
516         }
517
518         return retval;
519 }
520
521 FLAC__bool init_options(void)
522 {
523         option_values.show_help = false;
524         option_values.show_explain = false;
525         option_values.mode_decode = false;
526         option_values.verify = false;
527         option_values.treat_warnings_as_errors = false;
528         option_values.force_file_overwrite = false;
529         option_values.continue_through_decode_errors = false;
530         option_values.replaygain_synthesis_spec.apply = false;
531         option_values.replaygain_synthesis_spec.use_album_gain = true;
532         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
533         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
534         option_values.replaygain_synthesis_spec.preamp = 0.0;
535         option_values.lax = false;
536         option_values.test_only = false;
537         option_values.analyze = false;
538         option_values.use_ogg = false;
539         option_values.has_serial_number = false;
540         option_values.serial_number = 0;
541         option_values.force_to_stdout = false;
542         option_values.force_aiff_format = false;
543         option_values.force_raw_format = false;
544         option_values.delete_input = false;
545         option_values.replay_gain = false;
546         option_values.ignore_chunk_sizes = false;
547         option_values.sector_align = false;
548         option_values.cmdline_forced_outfilename = 0;
549         option_values.output_prefix = 0;
550         option_values.aopts.do_residual_text = false;
551         option_values.aopts.do_residual_gnuplot = false;
552         option_values.padding = -1;
553         option_values.num_compression_settings = 1;
554         option_values.compression_settings[0].type = CST_COMPRESSION_LEVEL;
555         option_values.compression_settings[0].value.t_unsigned = 5;
556         option_values.skip_specification = 0;
557         option_values.until_specification = 0;
558         option_values.cue_specification = 0;
559         option_values.format_is_big_endian = -1;
560         option_values.format_is_unsigned_samples = -1;
561         option_values.format_channels = -1;
562         option_values.format_bps = -1;
563         option_values.format_sample_rate = -1;
564         option_values.format_input_size = (off_t)(-1);
565         option_values.requested_seek_points[0] = '\0';
566         option_values.num_requested_seek_points = -1;
567         option_values.cuesheet_filename = 0;
568         option_values.cued_seekpoints = true;
569         option_values.channel_map_none = false;
570
571         option_values.num_files = 0;
572         option_values.filenames = 0;
573
574         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
575                 return false;
576         option_values.num_pictures = 0;
577
578         option_values.debug.disable_constant_subframes = false;
579         option_values.debug.disable_fixed_subframes = false;
580         option_values.debug.disable_verbatim_subframes = false;
581         option_values.debug.do_md5 = true;
582
583         return true;
584 }
585
586 int parse_options(int argc, char *argv[])
587 {
588         int short_option;
589         int option_index = 1;
590         FLAC__bool had_error = false;
591         const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vVw";
592
593         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
594                 switch (short_option) {
595                         case 0: /* long option with no equivalent short option */
596                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
597                                 break;
598                         case '?':
599                         case ':':
600                                 had_error = true;
601                                 break;
602                         default: /* short option */
603                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
604                                 break;
605                 }
606         }
607
608         if(had_error) {
609                 return 1;
610         }
611
612         FLAC__ASSERT(share__optind <= argc);
613
614         option_values.num_files = argc - share__optind;
615
616         if(option_values.num_files > 0) {
617                 unsigned i = 0;
618                 if(0 == (option_values.filenames = (char**)malloc(sizeof(char*) * option_values.num_files)))
619                         die("out of memory allocating space for file names list");
620                 while(share__optind < argc)
621                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
622         }
623
624         return 0;
625 }
626
627 int parse_option(int short_option, const char *long_option, const char *option_argument)
628 {
629         const char *violation;
630         char *p;
631         int i;
632
633         if(short_option == 0) {
634                 FLAC__ASSERT(0 != long_option);
635                 if(0 == strcmp(long_option, "totally-silent")) {
636                         flac__utils_verbosity_ = 0;
637                 }
638                 else if(0 == strcmp(long_option, "delete-input-file")) {
639                         option_values.delete_input = true;
640                 }
641                 else if(0 == strcmp(long_option, "output-prefix")) {
642                         FLAC__ASSERT(0 != option_argument);
643                         option_values.output_prefix = option_argument;
644                 }
645                 else if(0 == strcmp(long_option, "skip")) {
646                         FLAC__ASSERT(0 != option_argument);
647                         option_values.skip_specification = option_argument;
648                 }
649                 else if(0 == strcmp(long_option, "until")) {
650                         FLAC__ASSERT(0 != option_argument);
651                         option_values.until_specification = option_argument;
652                 }
653                 else if(0 == strcmp(long_option, "input-size")) {
654                         FLAC__ASSERT(0 != option_argument);
655                         {
656                                 char *end;
657 #ifdef _MSC_VER
658                                 FLAC__int64 i;
659                                 i = local__strtoll(option_argument, &end);
660 #else
661                                 long long i;
662                                 i = strtoll(option_argument, &end, 10);
663 #endif
664                                 if(0 == strlen(option_argument) || *end)
665                                         return usage_error("ERROR: --%s must be a number\n", long_option);
666                                 option_values.format_input_size = (off_t)i;
667                                 if(option_values.format_input_size != i) /* check if off_t is smaller than long long */
668                                         return usage_error("ERROR: --%s too large; this build of flac does not support filesizes over 2GB\n", long_option);
669                                 if(option_values.format_input_size <= 0)
670                                         return usage_error("ERROR: --%s must be > 0\n", long_option);
671                         }
672                 }
673                 else if(0 == strcmp(long_option, "cue")) {
674                         FLAC__ASSERT(0 != option_argument);
675                         option_values.cue_specification = option_argument;
676                 }
677                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
678                         option_values.replaygain_synthesis_spec.apply = true;
679                         if (0 != option_argument) {
680                                 char *p;
681                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
682                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
683                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
684                                 for ( ; *p; p++) {
685                                         if (*p == 'a')
686                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
687                                         else if (*p == 't')
688                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
689                                         else if (*p == 'l')
690                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
691                                         else if (*p == 'L')
692                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
693                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
694                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
695                                                 p++;
696                                         }
697                                         else
698                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
699                                 }
700                         }
701                 }
702                 else if(0 == strcmp(long_option, "channel-map")) {
703                         if (0 == option_argument || strcmp(option_argument, "none"))
704                                 return usage_error("ERROR: only --channel-map=none currently supported\n");
705                         option_values.channel_map_none = true;
706                 }
707                 else if(0 == strcmp(long_option, "cuesheet")) {
708                         FLAC__ASSERT(0 != option_argument);
709                         option_values.cuesheet_filename = option_argument;
710                 }
711                 else if(0 == strcmp(long_option, "picture")) {
712                         const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
713                         FLAC__ASSERT(0 != option_argument);
714                         if(option_values.num_pictures >= max_pictures)
715                                 return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
716                         if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
717                                 return usage_error("ERROR: (--picture) %s\n", violation);
718                         option_values.num_pictures++;
719                 }
720                 else if(0 == strcmp(long_option, "tag-from-file")) {
721                         FLAC__ASSERT(0 != option_argument);
722                         if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, &violation))
723                                 return usage_error("ERROR: (--tag-from-file) %s\n", violation);
724                 }
725                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
726                         option_values.cued_seekpoints = false;
727                 }
728                 else if(0 == strcmp(long_option, "force-aiff-format")) {
729                         option_values.force_aiff_format = true;
730                 }
731                 else if(0 == strcmp(long_option, "force-raw-format")) {
732                         option_values.force_raw_format = true;
733                 }
734                 else if(0 == strcmp(long_option, "lax")) {
735                         option_values.lax = true;
736                 }
737                 else if(0 == strcmp(long_option, "replay-gain")) {
738                         option_values.replay_gain = true;
739                 }
740                 else if(0 == strcmp(long_option, "ignore-chunk-sizes")) {
741                         option_values.ignore_chunk_sizes = true;
742                 }
743                 else if(0 == strcmp(long_option, "sector-align")) {
744                         option_values.sector_align = true;
745                 }
746 #if FLAC__HAS_OGG
747                 else if(0 == strcmp(long_option, "ogg")) {
748                         option_values.use_ogg = true;
749                 }
750                 else if(0 == strcmp(long_option, "serial-number")) {
751                         option_values.has_serial_number = true;
752                         option_values.serial_number = atol(option_argument);
753                 }
754 #endif
755                 else if(0 == strcmp(long_option, "endian")) {
756                         FLAC__ASSERT(0 != option_argument);
757                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
758                                 option_values.format_is_big_endian = true;
759                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
760                                 option_values.format_is_big_endian = false;
761                         else
762                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
763                 }
764                 else if(0 == strcmp(long_option, "channels")) {
765                         FLAC__ASSERT(0 != option_argument);
766                         option_values.format_channels = atoi(option_argument);
767                 }
768                 else if(0 == strcmp(long_option, "bps")) {
769                         FLAC__ASSERT(0 != option_argument);
770                         option_values.format_bps = atoi(option_argument);
771                 }
772                 else if(0 == strcmp(long_option, "sample-rate")) {
773                         FLAC__ASSERT(0 != option_argument);
774                         option_values.format_sample_rate = atoi(option_argument);
775                 }
776                 else if(0 == strcmp(long_option, "sign")) {
777                         FLAC__ASSERT(0 != option_argument);
778                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
779                                 option_values.format_is_unsigned_samples = false;
780                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
781                                 option_values.format_is_unsigned_samples = true;
782                         else
783                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
784                 }
785                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
786                         option_values.aopts.do_residual_gnuplot = true;
787                 }
788                 else if(0 == strcmp(long_option, "residual-text")) {
789                         option_values.aopts.do_residual_text = true;
790                 }
791                 /*
792                  * negatives
793                  */
794                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
795                         option_values.continue_through_decode_errors = false;
796                 }
797                 else if(0 == strcmp(long_option, "no-silent")) {
798                         flac__utils_verbosity_ = 2;
799                 }
800                 else if(0 == strcmp(long_option, "no-force")) {
801                         option_values.force_file_overwrite = false;
802                 }
803                 else if(0 == strcmp(long_option, "no-seektable")) {
804                         option_values.num_requested_seek_points = 0;
805                         option_values.requested_seek_points[0] = '\0';
806                 }
807                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
808                         option_values.delete_input = false;
809                 }
810                 else if(0 == strcmp(long_option, "no-replay-gain")) {
811                         option_values.replay_gain = false;
812                 }
813                 else if(0 == strcmp(long_option, "no-ignore-chunk-sizes")) {
814                         option_values.ignore_chunk_sizes = false;
815                 }
816                 else if(0 == strcmp(long_option, "no-sector-align")) {
817                         option_values.sector_align = false;
818                 }
819                 else if(0 == strcmp(long_option, "no-lax")) {
820                         option_values.lax = false;
821                 }
822 #if FLAC__HAS_OGG
823                 else if(0 == strcmp(long_option, "no-ogg")) {
824                         option_values.use_ogg = false;
825                 }
826 #endif
827                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
828                         add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, false);
829                 }
830                 else if(0 == strcmp(long_option, "no-mid-side")) {
831                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
832                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
833                 }
834                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
835                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
836                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
837                 }
838                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
839                         add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, false);
840                 }
841                 else if(0 == strcmp(long_option, "no-padding")) {
842                         option_values.padding = 0;
843                 }
844                 else if(0 == strcmp(long_option, "no-verify")) {
845                         option_values.verify = false;
846                 }
847                 else if(0 == strcmp(long_option, "no-warnings-as-errors")) {
848                         option_values.treat_warnings_as_errors = false;
849                 }
850                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
851                         option_values.aopts.do_residual_gnuplot = false;
852                 }
853                 else if(0 == strcmp(long_option, "no-residual-text")) {
854                         option_values.aopts.do_residual_text = false;
855                 }
856                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
857                         option_values.debug.disable_constant_subframes = true;
858                 }
859                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
860                         option_values.debug.disable_fixed_subframes = true;
861                 }
862                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
863                         option_values.debug.disable_verbatim_subframes = true;
864                 }
865                 else if(0 == strcmp(long_option, "no-md5-sum")) {
866                         option_values.debug.do_md5 = false;
867                 }
868         }
869         else {
870                 switch(short_option) {
871                         case 'h':
872                                 option_values.show_help = true;
873                                 break;
874                         case 'H':
875                                 option_values.show_explain = true;
876                                 break;
877                         case 'v':
878                                 option_values.show_version = true;
879                                 break;
880                         case 'd':
881                                 option_values.mode_decode = true;
882                                 break;
883                         case 'a':
884                                 option_values.mode_decode = true;
885                                 option_values.analyze = true;
886                                 break;
887                         case 't':
888                                 option_values.mode_decode = true;
889                                 option_values.test_only = true;
890                                 break;
891                         case 'c':
892                                 option_values.force_to_stdout = true;
893                                 break;
894                         case 's':
895                                 flac__utils_verbosity_ = 1;
896                                 break;
897                         case 'f':
898                                 option_values.force_file_overwrite = true;
899                                 break;
900                         case 'o':
901                                 FLAC__ASSERT(0 != option_argument);
902                                 option_values.cmdline_forced_outfilename = option_argument;
903                                 break;
904                         case 'F':
905                                 option_values.continue_through_decode_errors = true;
906                                 break;
907                         case 'T':
908                                 FLAC__ASSERT(0 != option_argument);
909                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, &violation))
910                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
911                                 break;
912                         case '0':
913                         case '1':
914                         case '2':
915                         case '3':
916                         case '4':
917                         case '5':
918                         case '6':
919                         case '7':
920                         case '8':
921                                 add_compression_setting_unsigned(CST_COMPRESSION_LEVEL, short_option-'0');
922                                 break;
923                         case '9':
924                                 return usage_error("ERROR: compression level '9' is reserved\n");
925                         case 'V':
926                                 option_values.verify = true;
927                                 break;
928                         case 'w':
929                                 option_values.treat_warnings_as_errors = true;
930                                 break;
931                         case 'S':
932                                 FLAC__ASSERT(0 != option_argument);
933                                 if(0 == strcmp(option_argument, "-")) {
934                                         option_values.num_requested_seek_points = 0;
935                                         option_values.requested_seek_points[0] = '\0';
936                                 }
937                                 else {
938                                         if(option_values.num_requested_seek_points < 0)
939                                                 option_values.num_requested_seek_points = 0;
940                                         option_values.num_requested_seek_points++;
941                                         if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
942                                                 return usage_error("ERROR: too many seekpoints requested\n");
943                                         }
944                                         else {
945                                                 strcat(option_values.requested_seek_points, option_argument);
946                                                 strcat(option_values.requested_seek_points, ";");
947                                         }
948                                 }
949                                 break;
950                         case 'P':
951                                 FLAC__ASSERT(0 != option_argument);
952                                 option_values.padding = atoi(option_argument);
953                                 if(option_values.padding < 0)
954                                         return usage_error("ERROR: argument to -%c must be >= 0; for no padding use -%c-\n", short_option, short_option);
955                                 break;
956                         case 'b':
957                                 FLAC__ASSERT(0 != option_argument);
958                                 i = atoi(option_argument);
959                                 if((i < (int)FLAC__MIN_BLOCK_SIZE || i > (int)FLAC__MAX_BLOCK_SIZE))
960                                         return usage_error("ERROR: invalid blocksize (-%c) '%d', must be >= %u and <= %u\n", short_option, i, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
961                                 add_compression_setting_unsigned(CST_BLOCKSIZE, (unsigned)i);
962                                 break;
963                         case 'e':
964                                 add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, true);
965                                 break;
966                         case 'E':
967                                 add_compression_setting_bool(CST_DO_ESCAPE_CODING, true);
968                                 break;
969                         case 'l':
970                                 FLAC__ASSERT(0 != option_argument);
971                                 i = atoi(option_argument);
972                                 if((i < 0 || i > (int)FLAC__MAX_LPC_ORDER))
973                                         return usage_error("ERROR: invalid LPC order (-%c) '%d', must be >= %u and <= %u\n", short_option, i, 0, FLAC__MAX_LPC_ORDER);
974                                 add_compression_setting_unsigned(CST_MAX_LPC_ORDER, (unsigned)i);
975                                 break;
976                         case 'A':
977                                 FLAC__ASSERT(0 != option_argument);
978                                 add_compression_setting_string(CST_APODIZATION, option_argument);
979                                 break;
980                         case 'm':
981                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
982                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
983                                 break;
984                         case 'M':
985                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
986                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, true);
987                                 break;
988                         case 'p':
989                                 add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, true);
990                                 break;
991                         case 'q':
992                                 FLAC__ASSERT(0 != option_argument);
993                                 i = atoi(option_argument);
994                                 if(i < 0 || (i > 0 && (i < (int)FLAC__MIN_QLP_COEFF_PRECISION || i > (int)FLAC__MAX_QLP_COEFF_PRECISION)))
995                                         return usage_error("ERROR: invalid value '%d' for qlp coeff precision (-%c), must be 0 or between %u and %u, inclusive\n", i, short_option, FLAC__MIN_QLP_COEFF_PRECISION, FLAC__MAX_QLP_COEFF_PRECISION);
996                                 add_compression_setting_unsigned(CST_QLP_COEFF_PRECISION, (unsigned)i);
997                                 break;
998                         case 'r':
999                                 FLAC__ASSERT(0 != option_argument);
1000                                 p = strchr(option_argument, ',');
1001                                 if(0 == p) {
1002                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, 0);
1003                                         i = atoi(option_argument);
1004                                         if(i < 0)
1005                                                 return usage_error("ERROR: invalid value '%d' for residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1006                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1007                                 }
1008                                 else {
1009                                         i = atoi(option_argument);
1010                                         if(i < 0)
1011                                                 return usage_error("ERROR: invalid value '%d' for min residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1012                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1013                                         i = atoi(++p);
1014                                         if(i < 0)
1015                                                 return usage_error("ERROR: invalid value '%d' for max residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1016                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1017                                 }
1018                                 break;
1019                         case 'R':
1020                                 i = atoi(option_argument);
1021                                 if(i < 0)
1022                                         return usage_error("ERROR: invalid value '%d' for Rice parameter search distance (-%c), must be >= 0\n", i, short_option);
1023                                 add_compression_setting_unsigned(CST_RICE_PARAMETER_SEARCH_DIST, (unsigned)i);
1024                                 break;
1025                         default:
1026                                 FLAC__ASSERT(0);
1027                 }
1028         }
1029
1030         return 0;
1031 }
1032
1033 void free_options(void)
1034 {
1035         unsigned i;
1036         if(0 != option_values.filenames) {
1037                 for(i = 0; i < option_values.num_files; i++) {
1038                         if(0 != option_values.filenames[i])
1039                                 free(option_values.filenames[i]);
1040                 }
1041                 free(option_values.filenames);
1042         }
1043         if(0 != option_values.vorbis_comment)
1044                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1045         for(i = 0; i < option_values.num_pictures; i++)
1046                 FLAC__metadata_object_delete(option_values.pictures[i]);
1047 }
1048
1049 void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value)
1050 {
1051         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1052                 die("too many compression settings");
1053         option_values.compression_settings[option_values.num_compression_settings].type = type;
1054         option_values.compression_settings[option_values.num_compression_settings].value.t_bool = value;
1055         option_values.num_compression_settings++;
1056 }
1057
1058 void add_compression_setting_string(compression_setting_type_t type, const char *value)
1059 {
1060         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1061                 die("too many compression settings");
1062         option_values.compression_settings[option_values.num_compression_settings].type = type;
1063         option_values.compression_settings[option_values.num_compression_settings].value.t_string = value;
1064         option_values.num_compression_settings++;
1065 }
1066
1067 void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value)
1068 {
1069         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1070                 die("too many compression settings");
1071         option_values.compression_settings[option_values.num_compression_settings].type = type;
1072         option_values.compression_settings[option_values.num_compression_settings].value.t_unsigned = value;
1073         option_values.num_compression_settings++;
1074 }
1075
1076 int usage_error(const char *message, ...)
1077 {
1078         if(flac__utils_verbosity_ >= 1) {
1079                 va_list args;
1080
1081                 FLAC__ASSERT(0 != message);
1082
1083                 va_start(args, message);
1084
1085                 (void) vfprintf(stderr, message, args);
1086
1087                 va_end(args);
1088
1089                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1090         }
1091
1092         return 1;
1093 }
1094
1095 void show_version(void)
1096 {
1097         printf("flac %s\n", FLAC__VERSION_STRING);
1098 }
1099
1100 static void usage_header(void)
1101 {
1102         printf("===============================================================================\n");
1103         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1104         printf("Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson\n");
1105         printf("\n");
1106         printf("This program is free software; you can redistribute it and/or\n");
1107         printf("modify it under the terms of the GNU General Public License\n");
1108         printf("as published by the Free Software Foundation; either version 2\n");
1109         printf("of the License, or (at your option) any later version.\n");
1110         printf("\n");
1111         printf("This program is distributed in the hope that it will be useful,\n");
1112         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1113         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1114         printf("GNU General Public License for more details.\n");
1115         printf("\n");
1116         printf("You should have received a copy of the GNU General Public License\n");
1117         printf("along with this program; if not, write to the Free Software\n");
1118         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1119         printf("===============================================================================\n");
1120 }
1121
1122 static void usage_summary(void)
1123 {
1124         printf("Usage:\n");
1125         printf("\n");
1126         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1127         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1128         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1129         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1130         printf("\n");
1131 }
1132
1133 void short_usage(void)
1134 {
1135         usage_header();
1136         printf("\n");
1137         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1138         printf("instructions use 'flac --explain'\n");
1139         printf("\n");
1140         printf("To encode:\n");
1141         printf("  flac [-#] [INPUTFILE [...]]\n");
1142         printf("\n");
1143         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1144         printf("\n");
1145         printf("To decode:\n");
1146         printf("  flac -d [INPUTFILE [...]]\n");
1147         printf("\n");
1148         printf("To test:\n");
1149         printf("  flac -t [INPUTFILE [...]]\n");
1150 }
1151
1152 void show_help(void)
1153 {
1154         usage_header();
1155         usage_summary();
1156         printf("general options:\n");
1157         printf("  -v, --version                Show the flac version number\n");
1158         printf("  -h, --help                   Show this screen\n");
1159         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1160         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1161         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1162         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1163         printf("  -c, --stdout                 Write output to stdout\n");
1164         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1165         printf("      --totally-silent         Do not print anything, including errors\n");
1166         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1167         printf("  -f, --force                  Force overwriting of output files\n");
1168         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1169         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1170         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1171         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1172         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1173 #if FLAC__HAS_OGG
1174         printf("      --ogg                    Use Ogg as transport layer\n");
1175         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1176 #endif
1177         printf("analysis options:\n");
1178         printf("      --residual-text          Include residual signal in text output\n");
1179         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1180         printf("decoding options:\n");
1181         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1182         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1183         printf("encoding options:\n");
1184         printf("  -V, --verify                 Verify a correct encoding\n");
1185         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1186 #if 0 /*@@@ currently undocumented */
1187         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files\n");
1188 #endif
1189         printf("      --sector-align           Align multiple files on sector boundaries\n");
1190         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1191         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1192         printf("      --picture=SPECIFICATION  Import picture and store in PICTURE block\n");
1193         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1194         printf("      --tag-from-file=FIELD=FILENAME   Like --tag but gets value from file\n");
1195         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1196         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1197         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1198         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1199         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1200         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1201         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1202         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1203         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1204         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1205         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1206         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1207         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1208         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1209         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1210         printf("  -A, --apodization=\"function\"       Window audio data with given the function\n");
1211         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1212         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1213         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1214         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1215         printf("format options:\n");
1216         printf("      --endian={big|little}    Set byte order for samples\n");
1217         printf("      --channels=#             Number of channels\n");
1218         printf("      --bps=#                  Number of bits per sample\n");
1219         printf("      --sample-rate=#          Sample rate in Hz\n");
1220         printf("      --sign={signed|unsigned} Sign of samples\n");
1221         printf("      --input-size=#           Size of the raw input in bytes\n");
1222         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1223         printf("      --force-raw-format       Treat input or output as raw samples\n");
1224         printf("negative options:\n");
1225         printf("      --no-adaptive-mid-side\n");
1226         printf("      --no-decode-through-errors\n");
1227         printf("      --no-delete-input-file\n");
1228         printf("      --no-exhaustive-model-search\n");
1229         printf("      --no-lax\n");
1230         printf("      --no-mid-side\n");
1231 #if FLAC__HAS_OGG
1232         printf("      --no-ogg\n");
1233 #endif
1234         printf("      --no-padding\n");
1235         printf("      --no-qlp-coeff-prec-search\n");
1236         printf("      --no-replay-gain\n");
1237         printf("      --no-residual-gnuplot\n");
1238         printf("      --no-residual-text\n");
1239 #if 0 /*@@@ currently undocumented */
1240         printf("      --no-ignore-chunk-sizes\n");
1241 #endif
1242         printf("      --no-sector-align\n");
1243         printf("      --no-seektable\n");
1244         printf("      --no-silent\n");
1245         printf("      --no-force\n");
1246         printf("      --no-verify\n");
1247         printf("      --no-warnings-as-errors\n");
1248 }
1249
1250 void show_explain(void)
1251 {
1252         usage_header();
1253         usage_summary();
1254         printf("For encoding:\n");
1255         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF (or uncompressed AIFF-C)\n");
1256         printf("  file, or raw samples.\n");
1257         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1258         printf("For decoding, the reverse is true.\n");
1259         printf("\n");
1260         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1261         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1262         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1263         printf("instead of:\n");
1264         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1265         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1266         printf("WAVE/AIFF header contents when necessary.\n");
1267         printf("\n");
1268         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1269         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1270         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1271         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1272         printf("files using -fr.\n");
1273         printf("\n");
1274         printf("general options:\n");
1275         printf("  -v, --version                Show the flac version number\n");
1276         printf("  -h, --help                   Show basic usage a list of all options\n");
1277         printf("  -H, --explain                Show this screen\n");
1278         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1279         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1280         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1281         printf("  -c, --stdout                 Write output to stdout\n");
1282         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1283         printf("      --totally-silent         Do not print anything of any kind, including\n");
1284         printf("                               warnings or errors.  The exit code will be the\n");
1285         printf("                               only way to determine successful completion.\n");
1286         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1287         printf("  -f, --force                  Force overwriting of output files\n");
1288         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1289         printf("                               changes the extension.  May only be used when\n");
1290         printf("                               encoding a single file.  May not be used in\n");
1291         printf("                               conjunction with --output-prefix.\n");
1292         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1293         printf("                               STRING.  This can be useful for encoding or\n");
1294         printf("                               decoding files to a different directory.  Make\n");
1295         printf("                               sure if your STRING is a path name that it ends\n");
1296         printf("                               with a '/' slash.\n");
1297         printf("      --delete-input-file      Automatically delete the input file after a\n");
1298         printf("                               successful encode or decode.  If there was an\n");
1299         printf("                               error (including a verify error) the input file\n");
1300         printf("                               is left intact.\n");
1301         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1302         printf("                               be used both for encoding and decoding.  The\n");
1303         printf("                               alternative form mm:ss.ss can be used to specify\n");
1304         printf("                               minutes, seconds, and fractions of a second.\n");
1305         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1306         printf("                               file.  The given sample number is not included\n");
1307         printf("                               in the decoded output.  The alternative form\n");
1308         printf("                               mm:ss.ss can be used to specify minutes,\n");
1309         printf("                               seconds, and fractions of a second.  If a `+'\n");
1310         printf("                               sign is at the beginning, the --until point is\n");
1311         printf("                               relative to the --skip point.  If a `-' sign is\n");
1312         printf("                               at the beginning, the --until point is relative\n");
1313         printf("                               to end of the audio.\n");
1314 #if FLAC__HAS_OGG
1315         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1316         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1317         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1318         printf("                               resulting file should have an '.ogg' extension\n");
1319         printf("                               and will still be decodable by flac.  When\n");
1320         printf("                               decoding, force the input to be treated as\n");
1321         printf("                               Ogg FLAC.  This is useful when piping input\n");
1322         printf("                               from stdin or when the filename does not end in\n");
1323         printf("                               '.ogg'.\n");
1324         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1325         printf("                               encoding and no serial number is given, flac\n");
1326         printf("                               uses a random one.  If encoding to multiple files\n");
1327         printf("                               the serial number is incremented for each file.\n");
1328         printf("                               When decoding and no number is given, flac uses\n");
1329         printf("                               the serial number of the first page.\n");
1330 #endif
1331         printf("analysis options:\n");
1332         printf("      --residual-text          Include residual signal in text output.  This\n");
1333         printf("                               will make the file very big, much larger than\n");
1334         printf("                               even the decoded file.\n");
1335         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1336         printf("                               of each subframe\n");
1337         printf("decoding options:\n");
1338         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1339         printf("                               and removes the partially decoded file if it\n");
1340         printf("                               encounters a bitstream error.  With -F, errors\n");
1341         printf("                               are still printed but flac will continue\n");
1342         printf("                               decoding to completion.  Note that errors may\n");
1343         printf("                               cause the decoded audio to be missing some\n");
1344         printf("                               samples or have silent sections.\n");
1345         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1346         printf("                               decode.  The optional first #.# is the track and\n");
1347         printf("                               index point at which decoding will start; the\n");
1348         printf("                               default is the beginning of the stream.  The\n");
1349         printf("                               optional second #.# is the track and index point\n");
1350         printf("                               at which decoding will end; the default is the\n");
1351         printf("                               end of the stream.  If the cuepoint does not\n");
1352         printf("                               exist, the closest one before it (for the start\n");
1353         printf("                               point) or after it (for the end point) will be\n");
1354         printf("                               used.  The cuepoints are merely translated into\n");
1355         printf("                               sample numbers then used as --skip and --until.\n");
1356         printf("                               A CD track can always be cued by, for example,\n");
1357         printf("                               --cue=9.1-10.1 for track 9, even if the CD has\n");
1358         printf("                               no 10th track.\n");
1359         printf("encoding options:\n");
1360         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1361         printf("                               output in parallel and comparing to the\n");
1362         printf("                               original\n");
1363         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1364 #if 0 /*@@@ currently undocumented */
1365         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files;\n");
1366         printf("                               useful when piping data from programs which\n");
1367         printf("                               generate bogus data chunk sizes.\n");
1368 #endif
1369         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1370         printf("                               on sector boundaries.\n");
1371         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1372         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1373         printf("                               for each file, and an album gain/peak will be\n");
1374         printf("                               computed for all files.  All input files must\n");
1375         printf("                               have the same resolution, sample rate, and\n");
1376         printf("                               number of channels.  The sample rate must be\n");
1377         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1378         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1379         printf("                               few extra bytes in the PADDING block.\n");
1380         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1381         printf("                               a CUESHEET metadata block.  This option may only\n");
1382         printf("                               be used when encoding a single file.  A\n");
1383         printf("                               seekpoint will be added for each index point in\n");
1384         printf("                               the cuesheet to the SEEKTABLE unless\n");
1385         printf("                               --no-cued-seekpoints is specified.\n");
1386         printf("      --picture=SPECIFICATION  Import a picture and store it in a PICTURE block.\n");
1387         printf("                               More than one --picture command can be specified.\n");
1388         printf("                               The SPECIFICATION can either be a simple filename\n");
1389         printf("                               for the picture file, or a complete specification\n");
1390         printf("                               whose parts are separated by | characters.  Some\n");
1391         printf("                               parts may be left empty to invoke default values.\n");
1392         printf("                               Using a filename is shorthand for \"||||FILE\".\n");
1393         printf("                               The SPECIFICATION format is:\n");
1394         printf("         [TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
1395         printf("           TYPE is optional; it is a number from one of:\n");
1396         printf("              0: Other\n");
1397         printf("              1: 32x32 pixels 'file icon' (PNG only)\n");
1398         printf("              2: Other file icon\n");
1399         printf("              3: Cover (front)\n");
1400         printf("              4: Cover (back)\n");
1401         printf("              5: Leaflet page\n");
1402         printf("              6: Media (e.g. label side of CD)\n");
1403         printf("              7: Lead artist/lead performer/soloist\n");
1404         printf("              8: Artist/performer\n");
1405         printf("              9: Conductor\n");
1406         printf("             10: Band/Orchestra\n");
1407         printf("             11: Composer\n");
1408         printf("             12: Lyricist/text writer\n");
1409         printf("             13: Recording Location\n");
1410         printf("             14: During recording\n");
1411         printf("             15: During performance\n");
1412         printf("             16: Movie/video screen capture\n");
1413         printf("             17: A bright coloured fish\n");
1414         printf("             18: Illustration\n");
1415         printf("             19: Band/artist logotype\n");
1416         printf("             20: Publisher/Studio logotype\n");
1417         printf("             The default is 3 (front cover).  There may only be one picture each\n");
1418         printf("             of type 1 and 2 in a file.\n");
1419         printf("           MIME-TYPE is optional; if left blank, it will be detected from the\n");
1420         printf("             file.  For best compatibility with players, use pictures with MIME\n");
1421         printf("             type image/jpeg or image/png.  The MIME type can also be --> to\n");
1422         printf("             mean that FILE is actually a URL to an image, though this use is\n");
1423         printf("             discouraged.\n");
1424         printf("           DESCRIPTION is optional; the default is an empty string\n");
1425         printf("           The next part specfies the resolution and color information.  If\n");
1426         printf("             the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
1427         printf("             usually leave this empty and they can be detected from the file.\n");
1428         printf("             Otherwise, you must specify the width in pixels, height in pixels,\n");
1429         printf("             and color depth in bits-per-pixel.  If the image has indexed colors\n");
1430         printf("             you should also specify the number of colors used.\n");
1431         printf("           FILE is the path to the picture file to be imported, or the URL if\n");
1432         printf("             MIME type is -->\n");
1433         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1434         printf("                               comment if necessary.  This option may appear\n");
1435         printf("                               more than once to add several comments.  NOTE:\n");
1436         printf("                               all tags will be added to all encoded files.\n");
1437         printf("      --tag-from-file=FIELD=FILENAME   Like --tag, except FILENAME is a file\n");
1438         printf("                               whose contents will be read verbatim to set the\n");
1439         printf("                               tag value.  The contents will be converted to\n");
1440         printf("                               UTF-8 from the local charset.  This can be used\n");
1441         printf("                               to store a cuesheet in a tag (e.g.\n");
1442         printf("                               --tag-from-file=\"CUESHEET=image.cue\").  Do not\n");
1443         printf("                               try to store binary data in tag fields!  Use\n");
1444         printf("                               APPLICATION blocks for that.\n");
1445         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1446         printf("       #  : a specific sample number for a seek point\n");
1447         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1448         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1449         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1450         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1451         printf("           ified union of all such values.\n");
1452         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1453         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1454         printf("           input size before starting.\n");
1455         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1456         printf("           either no seek point entered (if the input size is determinable\n");
1457         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1458         printf("           determinable)\n");
1459         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1460         printf("                               block of the given length (in bytes) after the\n");
1461         printf("                               STREAMINFO block.  This is useful if you plan\n");
1462         printf("                               to tag the file later with an APPLICATION\n");
1463         printf("                               block; instead of having to rewrite the entire\n");
1464         printf("                               file later just to insert your block, you can\n");
1465         printf("                               write directly over the PADDING block.  Note\n");
1466         printf("                               that the total length of the PADDING block will\n");
1467         printf("                               be 4 bytes longer than the length given because\n");
1468         printf("                               of the 4 metadata block header bytes.  You can\n");
1469         printf("                               force no PADDING block at all to be written with\n");
1470         printf("                               --no-padding.  The encoder writes a PADDING\n");
1471         printf("                               block of 8192 bytes by default, or 65536 bytes\n");
1472         printf("                               if the input audio is more than 20 minutes long.\n");
1473         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1474         printf("                               1152 for -l 0, else 4096; must be one of 192,\n");
1475         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1476         printf("                               4096 (and 8192 or 16384 if the sample rate is\n");
1477         printf("                               >48kHz) for Subset streams.\n");
1478         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1479         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1480         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1481         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1482         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1483         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1484         printf("                                     -5 is the default setting\n");
1485         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1486         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1487         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1488         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1489         printf("                                     (stereo only)\n");
1490         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1491         printf("                                     (stereo only)\n");
1492         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1493         printf("  -A, --apodization=\"function\"       Window audio data with given the function.\n");
1494         printf("                                     The functions are: bartlett, bartlett_hann,\n");
1495         printf("                                     blackman, blackman_harris_4term_92db,\n");
1496         printf("                                     connes, flattop, gauss(STDDEV), hamming,\n");
1497         printf("                                     hann, kaiser_bessel, nuttall, rectangle,\n");
1498         printf("                                     triangle, tukey(P), welch.  More than one\n");
1499         printf("                                     may be specified but encoding time is a\n");
1500         printf("                                     multiple of the number of functions since\n");
1501         printf("                                     they are each tried in turn.  The encoder\n");
1502         printf("                                     chooses suitable defaults in the absence\n");
1503         printf("                                     of any -A options.\n");
1504         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors.\n");
1505         printf("                                     Must be <= 12 for Subset streams if sample\n");
1506         printf("                                     rate is <=48kHz.\n");
1507         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1508         printf("                                     quantization (expensive!); overrides -q;\n");
1509         printf("                                     does nothing if using -l 0\n");
1510         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1511         printf("                                     linear-predictor coefficients; 0 => let\n");
1512         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1513         printf("                                     default is -q 0)\n");
1514         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1515         printf("                                     (# is 0..16; min defaults to 0; the\n");
1516         printf("                                     default is -r 0; above 4 doesn't usually\n");
1517         printf("                                     help much)\n");
1518         printf("format options:\n");
1519         printf("      --endian={big|little}    Set byte order for samples\n");
1520         printf("      --channels=#             Number of channels\n");
1521         printf("      --bps=#                  Number of bits per sample\n");
1522         printf("      --sample-rate=#          Sample rate in Hz\n");
1523         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1524         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1525         printf("                               encoding raw samples from stdin, you must set\n");
1526         printf("                               this option in order to be able to use --skip,\n");
1527         printf("                               --until, --cue-sheet, or other options that need\n");
1528         printf("                               to know the size of the input beforehand.  If\n");
1529         printf("                               the size given is greater than what is found in\n");
1530         printf("                               the input stream, the encoder will complain\n");
1531         printf("                               about an unexpected end-of-file.  If the size\n");
1532         printf("                               given is less, samples will be truncated.\n");
1533         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1534         printf("                               option is not needed if the output filename (as\n");
1535         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1536         printf("                               has no effect when encoding since input AIFF is\n");
1537         printf("                               auto-detected.\n");
1538         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1539         printf("                               decoding) to be treated as raw samples\n");
1540         printf("negative options:\n");
1541         printf("      --no-adaptive-mid-side\n");
1542         printf("      --no-decode-through-errors\n");
1543         printf("      --no-delete-input-file\n");
1544         printf("      --no-exhaustive-model-search\n");
1545         printf("      --no-lax\n");
1546         printf("      --no-mid-side\n");
1547 #if FLAC__HAS_OGG
1548         printf("      --no-ogg\n");
1549 #endif
1550         printf("      --no-padding\n");
1551         printf("      --no-qlp-coeff-prec-search\n");
1552         printf("      --no-residual-gnuplot\n");
1553         printf("      --no-residual-text\n");
1554 #if 0 /*@@@ currently undocumented */
1555         printf("      --no-ignore-chunk-sizes\n");
1556 #endif
1557         printf("      --no-sector-align\n");
1558         printf("      --no-seektable\n");
1559         printf("      --no-silent\n");
1560         printf("      --no-force\n");
1561         printf("      --no-verify\n");
1562         printf("      --no-warnings-as-errors\n");
1563 }
1564
1565 void format_mistake(const char *infilename, FileFormat wrong, FileFormat right)
1566 {
1567         /* WATCHOUT: indexed by FileFormat */
1568         static const char * const ff[] = { "raw", "WAVE", "AIFF", "FLAC", "Ogg FLAC" };
1569         flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, ff[wrong], ff[right]);
1570 }
1571
1572 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1573 {
1574         FILE *encode_infile;
1575         FLAC__byte lookahead[12];
1576         unsigned lookahead_length = 0;
1577         FileFormat fmt = RAW;
1578         FLAC__bool is_aifc = false;
1579         int retval;
1580         off_t infilesize;
1581         encode_options_t common_options;
1582         const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
1583         /* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
1584         char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
1585
1586         if(0 == outfilename) {
1587                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1588                 return 1;
1589         }
1590
1591         if(0 == strcmp(infilename, "-")) {
1592                 infilesize = (off_t)(-1);
1593                 encode_infile = grabbag__file_get_binary_stdin();
1594         }
1595         else {
1596                 infilesize = grabbag__file_get_filesize(infilename);
1597                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1598                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
1599                         return 1;
1600                 }
1601         }
1602
1603         if(!option_values.force_raw_format) {
1604                 /* first set format based on name */
1605                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1606                         fmt= WAV;
1607                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1608                         fmt= AIF;
1609                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1610                         fmt= AIF;
1611                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
1612                         fmt= FLAC;
1613                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1614                         fmt= OGGFLAC;
1615
1616                 /* attempt to guess the file type based on the first 12 bytes */
1617                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1618                         if(fmt != RAW) {
1619                                 format_mistake(infilename, fmt, RAW);
1620                                 if(option_values.treat_warnings_as_errors) {
1621                                         conditional_fclose(encode_infile);
1622                                         return 1;
1623                                 }
1624                         }
1625                         fmt= RAW;
1626                 }
1627                 else {
1628                         if(!strncmp((const char *)lookahead, "ID3", 3)) {
1629                                 flac__utils_printf(stderr, 1, "ERROR: input file %s has an ID3v2 tag\n", infilename);
1630                                 return 1;
1631                         }
1632                         else if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
1633                                 fmt= WAV;
1634                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
1635                                 fmt= AIF;
1636                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
1637                                 fmt= AIF;
1638                                 is_aifc = true;
1639                         }
1640                         else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
1641                                 fmt= FLAC;
1642                         /* this could be made more accurate by looking at the first packet */
1643                         else if(!memcmp(lookahead, "OggS", 4))
1644                                 fmt= OGGFLAC;
1645                         else {
1646                                 if(fmt != RAW) {
1647                                         format_mistake(infilename, fmt, RAW);
1648                                         if(option_values.treat_warnings_as_errors) {
1649                                                 conditional_fclose(encode_infile);
1650                                                 return 1;
1651                                         }
1652                                 }
1653                                 fmt= RAW;
1654                         }
1655                 }
1656         }
1657
1658         /*
1659          * Error if output file already exists (and -f not used).
1660          * Use grabbag__file_get_filesize() as a cheap way to check.
1661          */
1662         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1663                 if(fmt == FLAC) {
1664                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1665                         flac__utils_printf(stderr, 1,
1666                                 "ERROR: output file %s already exists.\n\n"
1667                                 "By default flac encodes files to FLAC format; if you meant to decode this file\n"
1668                                 "from FLAC to something else, use -d.  If you meant to re-encode this file from\n"
1669                                 "FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
1670                                 "a different output filename.\n",
1671                                 outfilename
1672                         );
1673                 }
1674                 else if(fmt == OGGFLAC) {
1675                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1676                         flac__utils_printf(stderr, 1,
1677                                 "ERROR: output file %s already exists.\n\n"
1678                                 "By default 'flac -ogg' encodes files to Ogg FLAC format; if you meant to decode\n"
1679                                 "this file from Ogg FLAC to something else, use -d.  If you meant to re-encode\n"
1680                                 "this file from Ogg FLAC to Ogg FLAC again, use -f to force writing to the same\n"
1681                                 "file, or -o to specify a different output filename.\n",
1682                                 outfilename
1683                         );
1684                 }
1685                 else
1686                         flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1687                 conditional_fclose(encode_infile);
1688                 return 1;
1689         }
1690
1691         if(option_values.format_input_size >= 0) {
1692                 if (fmt != RAW || infilesize >= 0) {
1693                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1694                         conditional_fclose(encode_infile);
1695                         return 1;
1696                 }
1697                 else {
1698                         infilesize = option_values.format_input_size;
1699                 }
1700         }
1701
1702         if(option_values.sector_align && (fmt == FLAC || fmt == OGGFLAC)) {
1703                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
1704                 conditional_fclose(encode_infile);
1705                 return 1;
1706         }
1707         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1708                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
1709                 conditional_fclose(encode_infile);
1710                 return 1;
1711         }
1712
1713         if(fmt == RAW) {
1714                 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) {
1715                         conditional_fclose(encode_infile);
1716                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1717                 }
1718         }
1719
1720         if(encode_infile == stdin || option_values.force_to_stdout) {
1721                 if(option_values.replay_gain) {
1722                         conditional_fclose(encode_infile);
1723                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1724                 }
1725         }
1726         if(option_values.replay_gain && option_values.use_ogg) {
1727                 conditional_fclose(encode_infile);
1728                 return usage_error("ERROR: --replay-gain cannot be used when encoding to Ogg FLAC yet\n");
1729         }
1730
1731         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative) {
1732                 conditional_fclose(encode_infile);
1733                 return usage_error("ERROR: invalid value for --skip\n");
1734         }
1735
1736         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 */
1737                 conditional_fclose(encode_infile);
1738                 return usage_error("ERROR: invalid value for --until\n");
1739         }
1740         /* if there is no "--until" we want to default to "--until=-0" */
1741         if(0 == option_values.until_specification)
1742                 common_options.until_specification.is_relative = true;
1743
1744         common_options.verify = option_values.verify;
1745         common_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
1746 #if FLAC__HAS_OGG
1747         common_options.use_ogg = option_values.use_ogg;
1748         /* set a random serial number if one has not yet been specified */
1749         if(!option_values.has_serial_number) {
1750                 option_values.serial_number = rand();
1751                 option_values.has_serial_number = true;
1752         }
1753         common_options.serial_number = option_values.serial_number++;
1754 #endif
1755         common_options.lax = option_values.lax;
1756         common_options.padding = option_values.padding;
1757         common_options.num_compression_settings = option_values.num_compression_settings;
1758         FLAC__ASSERT(sizeof(common_options.compression_settings) >= sizeof(option_values.compression_settings));
1759         memcpy(common_options.compression_settings, option_values.compression_settings, sizeof(option_values.compression_settings));
1760         common_options.requested_seek_points = option_values.requested_seek_points;
1761         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1762         common_options.cuesheet_filename = option_values.cuesheet_filename;
1763         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1764         common_options.cued_seekpoints = option_values.cued_seekpoints;
1765         common_options.channel_map_none = option_values.channel_map_none;
1766         common_options.is_first_file = is_first_file;
1767         common_options.is_last_file = is_last_file;
1768         common_options.align_reservoir = align_reservoir;
1769         common_options.align_reservoir_samples = &align_reservoir_samples;
1770         common_options.replay_gain = option_values.replay_gain;
1771         common_options.ignore_chunk_sizes = option_values.ignore_chunk_sizes;
1772         common_options.sector_align = option_values.sector_align;
1773         common_options.vorbis_comment = option_values.vorbis_comment;
1774         FLAC__ASSERT(sizeof(common_options.pictures) >= sizeof(option_values.pictures));
1775         memcpy(common_options.pictures, option_values.pictures, sizeof(option_values.pictures));
1776         common_options.num_pictures = option_values.num_pictures;
1777         common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1778         common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1779         common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1780         common_options.debug.do_md5 = option_values.debug.do_md5;
1781
1782         /* if infilename and outfilename point to the same file, we need to write to a temporary file */
1783         if(encode_infile != stdin && grabbag__file_are_same(infilename, outfilename)) {
1784                 static const char *tmp_suffix = ".tmp,fl-ac+en'c";
1785                 /*@@@@ still a remote possibility that a file with this filename exists */
1786                 if(0 == (internal_outfilename = malloc(strlen(outfilename)+strlen(tmp_suffix)+1))) {
1787                         flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
1788                         conditional_fclose(encode_infile);
1789                         return 1;
1790                 }
1791                 strcpy(internal_outfilename, outfilename);
1792                 strcat(internal_outfilename, tmp_suffix);
1793         }
1794
1795         if(fmt == RAW) {
1796                 raw_encode_options_t options;
1797
1798                 options.common = common_options;
1799                 options.is_big_endian = option_values.format_is_big_endian;
1800                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1801                 options.channels = option_values.format_channels;
1802                 options.bps = option_values.format_bps;
1803                 options.sample_rate = option_values.format_sample_rate;
1804
1805                 retval = flac__encode_raw(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1806         }
1807         else if(fmt == FLAC || fmt == OGGFLAC) {
1808                 flac_encode_options_t options;
1809
1810                 options.common = common_options;
1811
1812                 retval = flac__encode_flac(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, fmt==OGGFLAC);
1813         }
1814         else {
1815                 wav_encode_options_t options;
1816
1817                 options.common = common_options;
1818
1819                 if(fmt == AIF)
1820                         retval = flac__encode_aif(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, is_aifc);
1821                 else
1822                         retval = flac__encode_wav(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1823         }
1824
1825         if(retval == 0) {
1826                 if(strcmp(outfilename, "-")) {
1827                         if(option_values.replay_gain) {
1828                                 float title_gain, title_peak;
1829                                 const char *error;
1830                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1831                                 if(
1832                                         0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, /*preserve_modtime=*/true)) ||
1833                                         0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, /*preserve_modtime=*/true))
1834                                 ) {
1835                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
1836                                 }
1837                         }
1838                         if(strcmp(infilename, "-"))
1839                                 grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
1840                 }
1841         }
1842
1843         /* rename temporary file if necessary */
1844         if(retval == 0 && internal_outfilename != 0) {
1845                 if(rename(internal_outfilename, outfilename) < 0) {
1846 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
1847                         /* on some flavors of windows, rename() will fail if the destination already exists, so we unlink and try again */
1848                         if(unlink(outfilename) < 0) {
1849                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1850                                 retval = 1;
1851                         }
1852                         else if(rename(internal_outfilename, outfilename) < 0) {
1853                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, you must do it\n", internal_outfilename, outfilename);
1854                                 retval = 1;
1855                         }
1856 #else
1857                         flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1858                         retval = 1;
1859 #endif
1860                 }
1861         }
1862
1863         /* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
1864         if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
1865                 unlink(infilename);
1866
1867         if(internal_outfilename != 0)
1868                 free(internal_outfilename);
1869
1870         return retval;
1871 }
1872
1873 int decode_file(const char *infilename)
1874 {
1875         int retval;
1876         FLAC__bool treat_as_ogg = false;
1877         decode_options_t common_options;
1878         const char *outfilename = get_decoded_outfilename(infilename);
1879
1880         if(0 == outfilename) {
1881                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1882                 return 1;
1883         }
1884
1885         /*
1886          * Error if output file already exists (and -f not used).
1887          * Use grabbag__file_get_filesize() as a cheap way to check.
1888          */
1889         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1890                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1891                 return 1;
1892         }
1893
1894         if(!option_values.test_only && !option_values.analyze) {
1895                 if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
1896                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
1897         }
1898
1899         if(option_values.use_ogg)
1900                 treat_as_ogg = true;
1901         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1902                 treat_as_ogg = true;
1903         else
1904                 treat_as_ogg = false;
1905
1906 #if !FLAC__HAS_OGG
1907         if(treat_as_ogg) {
1908                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1909                 return 1;
1910         }
1911 #endif
1912
1913         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1914                 return usage_error("ERROR: invalid value for --skip\n");
1915
1916         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 */
1917                 return usage_error("ERROR: invalid value for --until\n");
1918         /* if there is no "--until" we want to default to "--until=-0" */
1919         if(0 == option_values.until_specification)
1920                 common_options.until_specification.is_relative = true;
1921
1922         if(option_values.cue_specification) {
1923                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &common_options.cue_specification))
1924                         return usage_error("ERROR: invalid value for --cue\n");
1925                 common_options.has_cue_specification = true;
1926         }
1927         else
1928                 common_options.has_cue_specification = false;
1929
1930         common_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
1931         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1932         common_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
1933 #if FLAC__HAS_OGG
1934         common_options.is_ogg = treat_as_ogg;
1935         common_options.use_first_serial_number = !option_values.has_serial_number;
1936         common_options.serial_number = option_values.serial_number;
1937 #endif
1938         common_options.channel_map_none = option_values.channel_map_none;
1939
1940         if(!option_values.force_raw_format) {
1941                 wav_decode_options_t options;
1942
1943                 options.common = common_options;
1944
1945                 if(
1946                         option_values.force_aiff_format ||
1947                         (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
1948                         (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
1949                 )
1950                         retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1951                 else
1952                         retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1953         }
1954         else {
1955                 raw_decode_options_t options;
1956
1957                 options.common = common_options;
1958                 options.is_big_endian = option_values.format_is_big_endian;
1959                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1960
1961                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1962         }
1963
1964         if(retval == 0 && strcmp(infilename, "-")) {
1965                 if(strcmp(outfilename, "-"))
1966                         grabbag__file_copy_metadata(infilename, outfilename);
1967                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1968                         unlink(infilename);
1969         }
1970
1971         return retval;
1972 }
1973
1974 const char *get_encoded_outfilename(const char *infilename)
1975 {
1976         const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
1977         return get_outfilename(infilename, suffix);
1978 }
1979
1980 const char *get_decoded_outfilename(const char *infilename)
1981 {
1982         const char *suffix;
1983         if(option_values.analyze) {
1984                 suffix = ".ana";
1985         }
1986         else if(option_values.force_raw_format) {
1987                 suffix = ".raw";
1988         }
1989         else if(option_values.force_aiff_format) {
1990                 suffix = ".aiff";
1991         }
1992         else {
1993                 suffix = ".wav";
1994         }
1995         return get_outfilename(infilename, suffix);
1996 }
1997
1998 const char *get_outfilename(const char *infilename, const char *suffix)
1999 {
2000         if(0 == option_values.cmdline_forced_outfilename) {
2001                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
2002
2003                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
2004                         strcpy(buffer, "-");
2005                 }
2006                 else {
2007                         char *p;
2008                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
2009                                 return 0;
2010                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
2011                                 return 0;
2012                         /* the . must come after any / to avoid problems with, e.g. "some.directory/extensionless-filename" */
2013                         if(0 == (p = strrchr(buffer, '.')) || strchr(p, '/')) {
2014                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2015                                         return 0;
2016                         }
2017                         else {
2018                                 *p = '\0';
2019                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2020                                         return 0;
2021                         }
2022                 }
2023                 return buffer;
2024         }
2025         else
2026                 return option_values.cmdline_forced_outfilename;
2027 }
2028
2029 void die(const char *message)
2030 {
2031         FLAC__ASSERT(0 != message);
2032         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
2033         exit(1);
2034 }
2035
2036 int conditional_fclose(FILE *f)
2037 {
2038         if(f == 0 || f == stdin || f == stdout)
2039                 return 0;
2040         else
2041                 return fclose(f);
2042 }
2043
2044 char *local_strdup(const char *source)
2045 {
2046         char *ret;
2047         FLAC__ASSERT(0 != source);
2048         if(0 == (ret = strdup(source)))
2049                 die("out of memory during strdup()");
2050         return ret;
2051 }
2052
2053 #ifdef _MSC_VER
2054 /* There's no strtoll() in MSVC6 so we just write a specialized one */
2055 FLAC__int64 local__strtoll(const char *src, char **endptr)
2056 {
2057         FLAC__bool neg = false;
2058         FLAC__int64 ret = 0;
2059         int c;
2060         FLAC__ASSERT(0 != src);
2061         if(*src == '-') {
2062                 neg = true;
2063                 src++;
2064         }
2065         while(0 != (c = *src)) {
2066                 c -= '0';
2067                 if(c >= 0 && c <= 9)
2068                         ret = (ret * 10) + c;
2069                 else
2070                         break;
2071                 src++;
2072         }
2073         if(endptr)
2074                 *endptr = (char*)src;
2075         return neg? -ret : ret;
2076 }
2077 #endif