1 /* metaflac - Command-line FLAC metadata editor
2 * Copyright (C) 2001,2002,2003 Josh Coalson
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.
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.
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.
21 #include "FLAC/assert.h"
22 #include "share/grabbag.h"
25 static FLAC__bool import_cs_from(const char *filename, FLAC__StreamMetadata **cuesheet, const char *cs_filename, FLAC__bool *needs_write, FLAC__uint64 lead_out_offset, Argument_AddSeekpoint *add_seekpoint_link);
26 static FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename);
28 FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write)
31 FLAC__StreamMetadata *cuesheet = 0;
32 FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
33 FLAC__uint64 lead_out_offset = 0;
36 die("out of memory allocating iterator");
38 FLAC__metadata_iterator_init(iterator, chain);
41 FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator);
42 if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
43 lead_out_offset = block->data.stream_info.total_samples;
44 if(lead_out_offset == 0) {
45 fprintf(stderr, "%s: ERROR: FLAC file must have total_samples set in STREAMINFO in order to import/export cuesheet\n", filename);
46 FLAC__metadata_iterator_delete(iterator);
49 if(block->data.stream_info.sample_rate != 44100) {
50 fprintf(stderr, "%s: ERROR: FLAC stream must currently be 44.1kHz in order to import/export cuesheet\n", filename);
51 FLAC__metadata_iterator_delete(iterator);
55 else if(block->type == FLAC__METADATA_TYPE_CUESHEET)
57 } while(FLAC__metadata_iterator_next(iterator));
59 if(lead_out_offset == 0) {
60 fprintf(stderr, "%s: ERROR: FLAC stream has no STREAMINFO block\n", filename);
61 FLAC__metadata_iterator_delete(iterator);
65 switch(operation->type) {
66 case OP__IMPORT_CUESHEET_FROM:
68 fprintf(stderr, "%s: ERROR: FLAC file already has CUESHEET block\n", filename);
72 ok = import_cs_from(filename, &cuesheet, operation->argument.import_cuesheet_from.filename, needs_write, lead_out_offset, operation->argument.import_cuesheet_from.add_seekpoint_link);
74 /* append CUESHEET block */
75 while(FLAC__metadata_iterator_next(iterator))
77 if(!FLAC__metadata_iterator_insert_block_after(iterator, cuesheet)) {
78 fprintf(stderr, "%s: ERROR: adding new CUESHEET block to metadata, status =\"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
79 FLAC__metadata_object_delete(cuesheet);
85 case OP__EXPORT_CUESHEET_TO:
87 fprintf(stderr, "%s: ERROR: FLAC file has no CUESHEET block\n", filename);
91 ok = export_cs_to(filename, cuesheet, operation->argument.filename.value);
99 FLAC__metadata_iterator_delete(iterator);
107 FLAC__bool import_cs_from(const char *filename, FLAC__StreamMetadata **cuesheet, const char *cs_filename, FLAC__bool *needs_write, FLAC__uint64 lead_out_offset, Argument_AddSeekpoint *add_seekpoint_link)
110 const char *error_message;
111 char **seekpoint_specification = add_seekpoint_link? &(add_seekpoint_link->specification) : 0;
112 unsigned last_line_read;
114 if(0 == cs_filename || strlen(cs_filename) == 0) {
115 fprintf(stderr, "%s: ERROR: empty import file name\n", filename);
118 if(0 == strcmp(cs_filename, "-"))
121 f = fopen(cs_filename, "r");
124 fprintf(stderr, "%s: ERROR: can't open import file %s\n", filename, cs_filename);
128 *cuesheet = grabbag__cuesheet_parse(f, &error_message, &last_line_read, /*@@@is_cdda=*/true, lead_out_offset);
134 fprintf(stderr, "%s: ERROR: while parsing cuesheet \"%s\" on line %u: %s\n", filename, cs_filename, last_line_read, error_message);
138 /* add seekpoints for each index point if required */
139 if(0 != seekpoint_specification) {
141 unsigned track, index;
142 const FLAC__StreamMetadata_CueSheet *cs = &(*cuesheet)->data.cue_sheet;
143 if(0 == *seekpoint_specification)
144 *seekpoint_specification = local_strdup("");
145 for(track = 0; track < cs->num_tracks; track++) {
146 const FLAC__StreamMetadata_CueSheet_Track *tr = cs->tracks+track;
147 for(index = 0; index < tr->num_indices; index++) {
148 sprintf(spec, "%llu;", tr->offset + tr->indices[index].offset);
149 local_strcat(seekpoint_specification, spec);
158 FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename)
162 if(0 == cs_filename || strlen(cs_filename) == 0) {
163 fprintf(stderr, "%s: ERROR: empty export file name\n", filename);
166 if(0 == strcmp(cs_filename, "-"))
169 f = fopen(cs_filename, "w");
172 fprintf(stderr, "%s: ERROR: can't open export file %s\n", filename, cs_filename);
176 grabbag__cuesheet_emit(f, cuesheet, "\"dummy.wav\" WAVE");