Update copyright years to include 2014.
[flac.git] / src / metaflac / operations.c
1 /* metaflac - Command-line FLAC metadata editor
2  * Copyright (C) 2001-2009  Josh Coalson
3  * Copyright (C) 2011-2014  Xiph.Org Foundation
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19
20 #ifdef HAVE_CONFIG_H
21 #  include <config.h>
22 #endif
23
24 #include "operations.h"
25 #include "usage.h"
26 #include "utils.h"
27 #include "FLAC/assert.h"
28 #include "FLAC/metadata.h"
29 #include "share/alloc.h"
30 #include "share/grabbag.h"
31 #include "share/compat.h"
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include "operations_shorthand.h"
36
37 static void show_version(void);
38 static FLAC__bool do_major_operation(const CommandLineOptions *options);
39 static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);
40 static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
41 static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
42 static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
43 static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
44 static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);
45 static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);
46 static FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert);
47 static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime);
48 static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);
49
50 static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);
51 static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);
52
53 /* from operations_shorthand_seektable.c */
54 extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);
55
56 /* from operations_shorthand_streaminfo.c */
57 extern FLAC__bool do_shorthand_operation__streaminfo(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
58
59 /* from operations_shorthand_vorbiscomment.c */
60 extern FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw);
61
62 /* from operations_shorthand_cuesheet.c */
63 extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
64
65 /* from operations_shorthand_picture.c */
66 extern FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
67
68
69 FLAC__bool do_operations(const CommandLineOptions *options)
70 {
71         FLAC__bool ok = true;
72
73         if(options->show_long_help) {
74                 long_usage(0);
75         }
76         if(options->show_version) {
77                 show_version();
78         }
79         else if(options->args.checks.num_major_ops > 0) {
80                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
81                 FLAC__ASSERT(options->args.checks.num_major_ops == 1);
82                 FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);
83                 ok = do_major_operation(options);
84         }
85         else if(options->args.checks.num_shorthand_ops > 0) {
86                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);
87                 ok = do_shorthand_operations(options);
88         }
89
90         return ok;
91 }
92
93 /*
94  * local routines
95  */
96
97 void show_version(void)
98 {
99         printf("metaflac %s\n", FLAC__VERSION_STRING);
100 }
101
102 FLAC__bool do_major_operation(const CommandLineOptions *options)
103 {
104         unsigned i;
105         FLAC__bool ok = true;
106
107         /* to die after first error,     v---  add '&& ok' here */
108         for(i = 0; i < options->num_files; i++)
109                 ok &= do_major_operation_on_file(options->filenames[i], options);
110
111         return ok;
112 }
113
114 FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)
115 {
116         FLAC__bool ok = true, needs_write = false, is_ogg = false;
117         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
118
119         if(0 == chain)
120                 die("out of memory allocating chain");
121
122         /*@@@@ lame way of guessing the file type */
123         if(strlen(filename) >= 4 && (0 == strcmp(filename+strlen(filename)-4, ".oga") || 0 == strcmp(filename+strlen(filename)-4, ".ogg")))
124                 is_ogg = true;
125
126         if(! (is_ogg? FLAC__metadata_chain_read_ogg(chain, filename) : FLAC__metadata_chain_read(chain, filename)) ) {
127                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
128                 FLAC__metadata_chain_delete(chain);
129                 return false;
130         }
131
132         switch(options->ops.operations[0].type) {
133                 case OP__LIST:
134                         ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);
135                         break;
136                 case OP__APPEND:
137                         ok = do_major_operation__append(chain, options);
138                         needs_write = true;
139                         break;
140                 case OP__REMOVE:
141                         ok = do_major_operation__remove(chain, options);
142                         needs_write = true;
143                         break;
144                 case OP__REMOVE_ALL:
145                         ok = do_major_operation__remove_all(chain, options);
146                         needs_write = true;
147                         break;
148                 case OP__MERGE_PADDING:
149                         FLAC__metadata_chain_merge_padding(chain);
150                         needs_write = true;
151                         break;
152                 case OP__SORT_PADDING:
153                         FLAC__metadata_chain_sort_padding(chain);
154                         needs_write = true;
155                         break;
156                 default:
157                         FLAC__ASSERT(0);
158                         return false;
159         }
160
161         if(ok && needs_write) {
162                 if(options->use_padding)
163                         FLAC__metadata_chain_sort_padding(chain);
164                 ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);
165                 if(!ok)
166                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
167         }
168
169         FLAC__metadata_chain_delete(chain);
170
171         return ok;
172 }
173
174 FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
175 {
176         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
177         FLAC__StreamMetadata *block;
178         FLAC__bool ok = true;
179         unsigned block_number;
180
181         if(0 == iterator)
182                 die("out of memory allocating iterator");
183
184         FLAC__metadata_iterator_init(iterator, chain);
185
186         block_number = 0;
187         do {
188                 block = FLAC__metadata_iterator_get_block(iterator);
189                 ok &= (0 != block);
190                 if(!ok)
191                         flac_fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);
192                 else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))
193                         write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);
194                 block_number++;
195         } while(ok && FLAC__metadata_iterator_next(iterator));
196
197         FLAC__metadata_iterator_delete(iterator);
198
199         return ok;
200 }
201
202 FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
203 {
204         (void) chain, (void) options;
205         flac_fprintf(stderr, "ERROR: --append not implemented yet\n");
206         return false;
207 }
208
209 FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
210 {
211         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
212         FLAC__bool ok = true;
213         unsigned block_number;
214
215         if(0 == iterator)
216                 die("out of memory allocating iterator");
217
218         FLAC__metadata_iterator_init(iterator, chain);
219
220         block_number = 0;
221         while(ok && FLAC__metadata_iterator_next(iterator)) {
222                 block_number++;
223                 if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {
224                         ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
225                         if(options->use_padding)
226                                 ok &= FLAC__metadata_iterator_next(iterator);
227                 }
228         }
229
230         FLAC__metadata_iterator_delete(iterator);
231
232         return ok;
233 }
234
235 FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
236 {
237         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
238         FLAC__bool ok = true;
239
240         if(0 == iterator)
241                 die("out of memory allocating iterator");
242
243         FLAC__metadata_iterator_init(iterator, chain);
244
245         while(ok && FLAC__metadata_iterator_next(iterator)) {
246                 ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
247                 if(options->use_padding)
248                         ok &= FLAC__metadata_iterator_next(iterator);
249         }
250
251         FLAC__metadata_iterator_delete(iterator);
252
253         return ok;
254 }
255
256 FLAC__bool do_shorthand_operations(const CommandLineOptions *options)
257 {
258         unsigned i;
259         FLAC__bool ok = true;
260
261         /* to die after first error,     v---  add '&& ok' here */
262         for(i = 0; i < options->num_files; i++)
263                 ok &= do_shorthand_operations_on_file(options->filenames[i], options);
264
265         /* check if OP__ADD_REPLAY_GAIN requested */
266         if(ok && options->num_files > 0) {
267                 for(i = 0; i < options->ops.num_operations; i++) {
268                         if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)
269                                 ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime);
270                 }
271         }
272
273         return ok;
274 }
275
276 FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)
277 {
278         unsigned i;
279         FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;
280         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
281
282         if(0 == chain)
283                 die("out of memory allocating chain");
284
285         if(!FLAC__metadata_chain_read(chain, filename)) {
286                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
287                 return false;
288         }
289
290         for(i = 0; i < options->ops.num_operations && ok; i++) {
291                 /*
292                  * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
293                  * --add-seekpoint and --import-cuesheet-from are used.
294                  */
295                 if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)
296                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
297
298                 /* The following seems counterintuitive but the meaning
299                  * of 'use_padding' is 'try to keep the overall metadata
300                  * to its original size, adding or truncating extra
301                  * padding if necessary' which is why we need to turn it
302                  * off in this case.  If we don't, the extra padding block
303                  * will just be truncated.
304                  */
305                 if(options->ops.operations[i].type == OP__ADD_PADDING)
306                         use_padding = false;
307         }
308
309         /*
310          * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
311          * --add-seekpoint and --import-cuesheet-from are used.
312          */
313         for(i = 0; i < options->ops.num_operations && ok; i++) {
314                 if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)
315                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
316         }
317
318         if(ok && needs_write) {
319                 if(use_padding)
320                         FLAC__metadata_chain_sort_padding(chain);
321                 ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);
322                 if(!ok)
323                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
324         }
325
326         FLAC__metadata_chain_delete(chain);
327
328         return ok;
329 }
330
331 FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert)
332 {
333         FLAC__bool ok = true;
334
335         switch(operation->type) {
336                 case OP__SHOW_MD5SUM:
337                 case OP__SHOW_MIN_BLOCKSIZE:
338                 case OP__SHOW_MAX_BLOCKSIZE:
339                 case OP__SHOW_MIN_FRAMESIZE:
340                 case OP__SHOW_MAX_FRAMESIZE:
341                 case OP__SHOW_SAMPLE_RATE:
342                 case OP__SHOW_CHANNELS:
343                 case OP__SHOW_BPS:
344                 case OP__SHOW_TOTAL_SAMPLES:
345                 case OP__SET_MD5SUM:
346                 case OP__SET_MIN_BLOCKSIZE:
347                 case OP__SET_MAX_BLOCKSIZE:
348                 case OP__SET_MIN_FRAMESIZE:
349                 case OP__SET_MAX_FRAMESIZE:
350                 case OP__SET_SAMPLE_RATE:
351                 case OP__SET_CHANNELS:
352                 case OP__SET_BPS:
353                 case OP__SET_TOTAL_SAMPLES:
354                         ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);
355                         break;
356                 case OP__SHOW_VC_VENDOR:
357                 case OP__SHOW_VC_FIELD:
358                 case OP__REMOVE_VC_ALL:
359                 case OP__REMOVE_VC_FIELD:
360                 case OP__REMOVE_VC_FIRSTFIELD:
361                 case OP__SET_VC_FIELD:
362                 case OP__IMPORT_VC_FROM:
363                 case OP__EXPORT_VC_TO:
364                         ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);
365                         break;
366                 case OP__IMPORT_CUESHEET_FROM:
367                 case OP__EXPORT_CUESHEET_TO:
368                         ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);
369                         break;
370                 case OP__IMPORT_PICTURE_FROM:
371                 case OP__EXPORT_PICTURE_TO:
372                         ok = do_shorthand_operation__picture(filename, chain, operation, needs_write);
373                         break;
374                 case OP__ADD_SEEKPOINT:
375                         ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);
376                         break;
377                 case OP__ADD_REPLAY_GAIN:
378                         /* this command is always executed last */
379                         ok = true;
380                         break;
381                 case OP__ADD_PADDING:
382                         ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);
383                         break;
384                 default:
385                         ok = false;
386                         FLAC__ASSERT(0);
387                         break;
388         };
389
390         return ok;
391 }
392
393 FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime)
394 {
395         FLAC__StreamMetadata streaminfo;
396         float *title_gains = 0, *title_peaks = 0;
397         float album_gain, album_peak;
398         unsigned sample_rate = 0;
399         unsigned bits_per_sample = 0;
400         unsigned channels = 0;
401         unsigned i;
402         const char *error;
403         FLAC__bool first = true;
404
405         FLAC__ASSERT(num_files > 0);
406
407         for(i = 0; i < num_files; i++) {
408                 FLAC__ASSERT(0 != filenames[i]);
409                 if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {
410                         flac_fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);
411                         return false;
412                 }
413                 if(first) {
414                         first = false;
415                         sample_rate = streaminfo.data.stream_info.sample_rate;
416                         bits_per_sample = streaminfo.data.stream_info.bits_per_sample;
417                         channels = streaminfo.data.stream_info.channels;
418                 }
419                 else {
420                         if(sample_rate != streaminfo.data.stream_info.sample_rate) {
421                                 flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz does not match previous files' %u Hz\n", filenames[i], streaminfo.data.stream_info.sample_rate, sample_rate);
422                                 return false;
423                         }
424                         if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {
425                                 flac_fprintf(stderr, "%s: ERROR: resolution of %u bps does not match previous files' %u bps\n", filenames[i], streaminfo.data.stream_info.bits_per_sample, bits_per_sample);
426                                 return false;
427                         }
428                         if(channels != streaminfo.data.stream_info.channels) {
429                                 flac_fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);
430                                 return false;
431                         }
432                 }
433                 if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
434                         flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);
435                         return false;
436                 }
437                 if(channels != 1 && channels != 2) {
438                         flac_fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);
439                         return false;
440                 }
441         }
442         FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);
443
444         if(!grabbag__replaygain_init(sample_rate)) {
445                 FLAC__ASSERT(0);
446                 /* double protection */
447                 flac_fprintf(stderr, "internal error\n");
448                 return false;
449         }
450
451         if(
452                 0 == (title_gains = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files)) ||
453                 0 == (title_peaks = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files))
454         )
455                 die("out of memory allocating space for title gains/peaks");
456
457         for(i = 0; i < num_files; i++) {
458                 if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {
459                         flac_fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);
460                         free(title_gains);
461                         free(title_peaks);
462                         return false;
463                 }
464         }
465         grabbag__replaygain_get_album(&album_gain, &album_peak);
466
467         for(i = 0; i < num_files; i++) {
468                 if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {
469                         flac_fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);
470                         free(title_gains);
471                         free(title_peaks);
472                         return false;
473                 }
474         }
475
476         free(title_gains);
477         free(title_peaks);
478         return true;
479 }
480
481 FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)
482 {
483         FLAC__StreamMetadata *padding = 0;
484         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
485
486         if(0 == iterator)
487                 die("out of memory allocating iterator");
488
489         FLAC__metadata_iterator_init(iterator, chain);
490
491         while(FLAC__metadata_iterator_next(iterator))
492                 ;
493
494         padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
495         if(0 == padding)
496                 die("out of memory allocating PADDING block");
497
498         padding->length = length;
499
500         if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {
501                 print_error_with_chain_status(chain, "%s: ERROR: adding new PADDING block to metadata", filename);
502                 FLAC__metadata_object_delete(padding);
503                 FLAC__metadata_iterator_delete(iterator);
504                 return false;
505         }
506
507         FLAC__metadata_iterator_delete(iterator);
508         *needs_write = true;
509         return true;
510 }
511
512 FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)
513 {
514         unsigned i, j;
515         FLAC__bool matches_number = false, matches_type = false;
516         FLAC__bool has_block_number_arg = false;
517
518         for(i = 0; i < options->args.num_arguments; i++) {
519                 if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {
520                         for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {
521                                 if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {
522                                         if(block->type != FLAC__METADATA_TYPE_APPLICATION || !options->args.arguments[i].value.block_type.entries[j].filter_application_by_id || 0 == memcmp(options->args.arguments[i].value.block_type.entries[j].application_id, block->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
523                                                 matches_type = true;
524                                 }
525                         }
526                 }
527                 else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {
528                         has_block_number_arg = true;
529                         for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {
530                                 if(options->args.arguments[i].value.block_number.entries[j] == block_number)
531                                         matches_number = true;
532                         }
533                 }
534         }
535
536         if(!has_block_number_arg)
537                 matches_number = true;
538
539         if(options->args.checks.has_block_type) {
540                 FLAC__ASSERT(!options->args.checks.has_except_block_type);
541         }
542         else if(options->args.checks.has_except_block_type)
543                 matches_type = !matches_type;
544         else
545                 matches_type = true;
546
547         return matches_number && matches_type;
548 }
549
550 void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)
551 {
552         unsigned i, j;
553
554 /*@@@ yuck, should do this with a varargs function or something: */
555 #define PPR if(filename) { if(raw) printf("%s:",filename); else flac_printf("%s:",filename); }
556         PPR; printf("METADATA block #%u\n", block_number);
557         PPR; printf("  type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");
558         PPR; printf("  is last: %s\n", block->is_last? "true":"false");
559         PPR; printf("  length: %u\n", block->length);
560
561         switch(block->type) {
562                 case FLAC__METADATA_TYPE_STREAMINFO:
563                         PPR; printf("  minimum blocksize: %u samples\n", block->data.stream_info.min_blocksize);
564                         PPR; printf("  maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);
565                         PPR; printf("  minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);
566                         PPR; printf("  maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);
567                         PPR; printf("  sample_rate: %u Hz\n", block->data.stream_info.sample_rate);
568                         PPR; printf("  channels: %u\n", block->data.stream_info.channels);
569                         PPR; printf("  bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);
570                         PPR; printf("  total samples: %" PRIu64 "\n", block->data.stream_info.total_samples);
571                         PPR; printf("  MD5 signature: ");
572                         for(i = 0; i < 16; i++) {
573                                 printf("%02x", (unsigned)block->data.stream_info.md5sum[i]);
574                         }
575                         printf("\n");
576                         break;
577                 case FLAC__METADATA_TYPE_PADDING:
578                         /* nothing to print */
579                         break;
580                 case FLAC__METADATA_TYPE_APPLICATION:
581                         PPR; printf("  application ID: ");
582                         for(i = 0; i < 4; i++)
583                                 printf("%02x", block->data.application.id[i]);
584                         printf("\n");
585                         PPR; printf("  data contents:\n");
586                         if(0 != block->data.application.data) {
587                                 if(hexdump_application)
588                                         hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, "    ");
589                                 else
590                                         (void) local_fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout);
591                         }
592                         break;
593                 case FLAC__METADATA_TYPE_SEEKTABLE:
594                         PPR; printf("  seek points: %u\n", block->data.seek_table.num_points);
595                         for(i = 0; i < block->data.seek_table.num_points; i++) {
596                                 if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
597                                         PPR; printf("    point %u: sample_number=%" PRIu64 ", stream_offset=%" PRIu64 ", frame_samples=%u\n", i, block->data.seek_table.points[i].sample_number, block->data.seek_table.points[i].stream_offset, block->data.seek_table.points[i].frame_samples);
598                                 }
599                                 else {
600                                         PPR; printf("    point %u: PLACEHOLDER\n", i);
601                                 }
602                         }
603                         break;
604                 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
605                         PPR; printf("  vendor string: ");
606                         write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);
607                         PPR; printf("  comments: %u\n", block->data.vorbis_comment.num_comments);
608                         for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {
609                                 PPR; printf("    comment[%u]: ", i);
610                                 write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);
611                         }
612                         break;
613                 case FLAC__METADATA_TYPE_CUESHEET:
614                         PPR; printf("  media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);
615                         PPR; printf("  lead-in: %" PRIu64 "\n", block->data.cue_sheet.lead_in);
616                         PPR; printf("  is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");
617                         PPR; printf("  number of tracks: %u\n", block->data.cue_sheet.num_tracks);
618                         for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {
619                                 const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;
620                                 const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);
621                                 const FLAC__bool is_leadout = is_last && track->num_indices == 0;
622                                 PPR; printf("    track[%u]\n", i);
623                                 PPR; printf("      offset: %" PRIu64 "\n", track->offset);
624                                 if(is_last) {
625                                         PPR; printf("      number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");
626                                 }
627                                 else {
628                                         PPR; printf("      number: %u\n", (unsigned)track->number);
629                                 }
630                                 if(!is_leadout) {
631                                         PPR; printf("      ISRC: %s\n", track->isrc);
632                                         PPR; printf("      type: %s\n", track->type == 1? "DATA" : "AUDIO");
633                                         PPR; printf("      pre-emphasis: %s\n", track->pre_emphasis? "true":"false");
634                                         PPR; printf("      number of index points: %u\n", track->num_indices);
635                                         for(j = 0; j < track->num_indices; j++) {
636                                                 const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices+j;
637                                                 PPR; printf("        index[%u]\n", j);
638                                                 PPR; printf("          offset: %" PRIu64 "\n", indx->offset);
639                                                 PPR; printf("          number: %u\n", (unsigned)indx->number);
640                                         }
641                                 }
642                         }
643                         break;
644                 case FLAC__METADATA_TYPE_PICTURE:
645                         PPR; printf("  type: %u (%s)\n", block->data.picture.type, block->data.picture.type < FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED? FLAC__StreamMetadata_Picture_TypeString[block->data.picture.type] : "UNDEFINED");
646                         PPR; printf("  MIME type: %s\n", block->data.picture.mime_type);
647                         PPR; printf("  description: %s\n", block->data.picture.description);
648                         PPR; printf("  width: %u\n", (unsigned)block->data.picture.width);
649                         PPR; printf("  height: %u\n", (unsigned)block->data.picture.height);
650                         PPR; printf("  depth: %u\n", (unsigned)block->data.picture.depth);
651                         PPR; printf("  colors: %u%s\n", (unsigned)block->data.picture.colors, block->data.picture.colors? "" : " (unindexed)");
652                         PPR; printf("  data length: %u\n", (unsigned)block->data.picture.data_length);
653                         PPR; printf("  data:\n");
654                         if(0 != block->data.picture.data)
655                                 hexdump(filename, block->data.picture.data, block->data.picture.data_length, "    ");
656                         break;
657                 default:
658                         PPR; printf("  data contents:\n");
659                         if(0 != block->data.unknown.data)
660                                 hexdump(filename, block->data.unknown.data, block->length, "    ");
661                         break;
662         }
663 #undef PPR
664 }