1 /* metaflac - Command-line FLAC metadata editor
2 * Copyright (C) 2001,2002,2003,2004,2005 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, FLAC__bool is_cdda, 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;
34 FLAC__bool is_cdda = false;
37 die("out of memory allocating iterator");
39 FLAC__metadata_iterator_init(iterator, chain);
42 FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator);
43 if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
44 lead_out_offset = block->data.stream_info.total_samples;
45 if(lead_out_offset == 0) {
46 fprintf(stderr, "%s: ERROR: FLAC file must have total_samples set in STREAMINFO in order to import/export cuesheet\n", filename);
47 FLAC__metadata_iterator_delete(iterator);
50 is_cdda = (block->data.stream_info.channels == 1 || block->data.stream_info.channels == 2) && (block->data.stream_info.bits_per_sample == 16) && (block->data.stream_info.sample_rate == 44100);
52 else if(block->type == FLAC__METADATA_TYPE_CUESHEET)
54 } while(FLAC__metadata_iterator_next(iterator));
56 if(lead_out_offset == 0) {
57 fprintf(stderr, "%s: ERROR: FLAC stream has no STREAMINFO block\n", filename);
58 FLAC__metadata_iterator_delete(iterator);
62 switch(operation->type) {
63 case OP__IMPORT_CUESHEET_FROM:
65 fprintf(stderr, "%s: ERROR: FLAC file already has CUESHEET block\n", filename);
69 ok = import_cs_from(filename, &cuesheet, operation->argument.import_cuesheet_from.filename, needs_write, lead_out_offset, is_cdda, operation->argument.import_cuesheet_from.add_seekpoint_link);
71 /* append CUESHEET block */
72 while(FLAC__metadata_iterator_next(iterator))
74 if(!FLAC__metadata_iterator_insert_block_after(iterator, cuesheet)) {
75 print_error_with_chain_status(chain, "%s: ERROR: adding new CUESHEET block to metadata", filename);
76 FLAC__metadata_object_delete(cuesheet);
82 case OP__EXPORT_CUESHEET_TO:
84 fprintf(stderr, "%s: ERROR: FLAC file has no CUESHEET block\n", filename);
88 ok = export_cs_to(filename, cuesheet, operation->argument.filename.value);
96 FLAC__metadata_iterator_delete(iterator);
104 FLAC__bool import_cs_from(const char *filename, FLAC__StreamMetadata **cuesheet, const char *cs_filename, FLAC__bool *needs_write, FLAC__uint64 lead_out_offset, FLAC__bool is_cdda, Argument_AddSeekpoint *add_seekpoint_link)
107 const char *error_message;
108 char **seekpoint_specification = add_seekpoint_link? &(add_seekpoint_link->specification) : 0;
109 unsigned last_line_read;
111 if(0 == cs_filename || strlen(cs_filename) == 0) {
112 fprintf(stderr, "%s: ERROR: empty import file name\n", filename);
115 if(0 == strcmp(cs_filename, "-"))
118 f = fopen(cs_filename, "r");
121 fprintf(stderr, "%s: ERROR: can't open import file %s\n", filename, cs_filename);
125 *cuesheet = grabbag__cuesheet_parse(f, &error_message, &last_line_read, is_cdda, lead_out_offset);
131 fprintf(stderr, "%s: ERROR: while parsing cuesheet \"%s\" on line %u: %s\n", filename, cs_filename, last_line_read, error_message);
135 if(!FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/false, &error_message)) {
136 fprintf(stderr, "%s: ERROR parsing cuesheet \"%s\": %s\n", filename, cs_filename, error_message);
140 /* if we're expecting CDDA, warn about non-compliance */
141 if(is_cdda && !FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/true, &error_message)) {
142 fprintf(stderr, "%s: WARNING cuesheet \"%s\" is not audio CD compliant: %s\n", filename, cs_filename, error_message);
143 (*cuesheet)->data.cue_sheet.is_cd = false;
146 /* add seekpoints for each index point if required */
147 if(0 != seekpoint_specification) {
149 unsigned track, index;
150 const FLAC__StreamMetadata_CueSheet *cs = &(*cuesheet)->data.cue_sheet;
151 if(0 == *seekpoint_specification)
152 *seekpoint_specification = local_strdup("");
153 for(track = 0; track < cs->num_tracks; track++) {
154 const FLAC__StreamMetadata_CueSheet_Track *tr = cs->tracks+track;
155 for(index = 0; index < tr->num_indices; index++) {
157 sprintf(spec, "%I64u;", tr->offset + tr->indices[index].offset);
159 sprintf(spec, "%llu;", tr->offset + tr->indices[index].offset);
161 local_strcat(seekpoint_specification, spec);
170 FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename)
174 if(0 == cs_filename || strlen(cs_filename) == 0) {
175 fprintf(stderr, "%s: ERROR: empty export file name\n", filename);
178 if(0 == strcmp(cs_filename, "-"))
181 f = fopen(cs_filename, "w");
184 fprintf(stderr, "%s: ERROR: can't open export file %s\n", filename, cs_filename);
188 grabbag__cuesheet_emit(f, cuesheet, "\"dummy.wav\" WAVE");