1 /* metaflac - Command-line FLAC metadata editor
2 * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 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 along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include "FLAC/assert.h"
28 #include "share/grabbag.h"
29 #include "share/compat.h"
30 #include "operations_shorthand.h"
32 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, unsigned sample_rate, FLAC__bool is_cdda, Argument_AddSeekpoint *add_seekpoint_link);
33 static FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename);
35 FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write)
38 FLAC__StreamMetadata *cuesheet = 0;
39 FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
40 FLAC__uint64 lead_out_offset = 0;
41 FLAC__bool is_cdda = false;
42 unsigned sample_rate = 0;
45 die("out of memory allocating iterator");
47 FLAC__metadata_iterator_init(iterator, chain);
50 FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator);
51 if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
52 lead_out_offset = block->data.stream_info.total_samples;
53 if(lead_out_offset == 0) {
54 flac_fprintf(stderr, "%s: ERROR: FLAC file must have total_samples set in STREAMINFO in order to import/export cuesheet\n", filename);
55 FLAC__metadata_iterator_delete(iterator);
58 sample_rate = block->data.stream_info.sample_rate;
59 is_cdda = (block->data.stream_info.channels == 1 || block->data.stream_info.channels == 2) && (block->data.stream_info.bits_per_sample == 16) && (sample_rate == 44100);
61 else if(block->type == FLAC__METADATA_TYPE_CUESHEET)
63 } while(FLAC__metadata_iterator_next(iterator));
65 if(lead_out_offset == 0) {
66 flac_fprintf(stderr, "%s: ERROR: FLAC stream has no STREAMINFO block\n", filename);
67 FLAC__metadata_iterator_delete(iterator);
71 switch(operation->type) {
72 case OP__IMPORT_CUESHEET_FROM:
74 flac_fprintf(stderr, "%s: ERROR: FLAC file already has CUESHEET block\n", filename);
78 ok = import_cs_from(filename, &cuesheet, operation->argument.import_cuesheet_from.filename, needs_write, lead_out_offset, sample_rate, is_cdda, operation->argument.import_cuesheet_from.add_seekpoint_link);
80 /* append CUESHEET block */
81 while(FLAC__metadata_iterator_next(iterator))
83 if(!FLAC__metadata_iterator_insert_block_after(iterator, cuesheet)) {
84 print_error_with_chain_status(chain, "%s: ERROR: adding new CUESHEET block to metadata", filename);
85 FLAC__metadata_object_delete(cuesheet);
91 case OP__EXPORT_CUESHEET_TO:
93 flac_fprintf(stderr, "%s: ERROR: FLAC file has no CUESHEET block\n", filename);
97 ok = export_cs_to(filename, cuesheet, operation->argument.filename.value);
105 FLAC__metadata_iterator_delete(iterator);
113 FLAC__bool import_cs_from(const char *filename, FLAC__StreamMetadata **cuesheet, const char *cs_filename, FLAC__bool *needs_write, FLAC__uint64 lead_out_offset, unsigned sample_rate, FLAC__bool is_cdda, Argument_AddSeekpoint *add_seekpoint_link)
116 const char *error_message;
117 char **seekpoint_specification = add_seekpoint_link? &(add_seekpoint_link->specification) : 0;
118 unsigned last_line_read;
120 if(0 == cs_filename || strlen(cs_filename) == 0) {
121 flac_fprintf(stderr, "%s: ERROR: empty import file name\n", filename);
124 if(0 == strcmp(cs_filename, "-"))
127 f = flac_fopen(cs_filename, "r");
130 flac_fprintf(stderr, "%s: ERROR: can't open import file %s: %s\n", filename, cs_filename, strerror(errno));
134 *cuesheet = grabbag__cuesheet_parse(f, &error_message, &last_line_read, sample_rate, is_cdda, lead_out_offset);
140 flac_fprintf(stderr, "%s: ERROR: while parsing cuesheet \"%s\" on line %u: %s\n", filename, cs_filename, last_line_read, error_message);
144 if(!FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/false, &error_message)) {
145 flac_fprintf(stderr, "%s: ERROR parsing cuesheet \"%s\": %s\n", filename, cs_filename, error_message);
149 /* if we're expecting CDDA, warn about non-compliance */
150 if(is_cdda && !FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/true, &error_message)) {
151 flac_fprintf(stderr, "%s: WARNING cuesheet \"%s\" is not audio CD compliant: %s\n", filename, cs_filename, error_message);
152 (*cuesheet)->data.cue_sheet.is_cd = false;
155 /* add seekpoints for each index point if required */
156 if(0 != seekpoint_specification) {
158 unsigned track, indx;
159 const FLAC__StreamMetadata_CueSheet *cs = &(*cuesheet)->data.cue_sheet;
160 if(0 == *seekpoint_specification)
161 *seekpoint_specification = local_strdup("");
162 for(track = 0; track < cs->num_tracks; track++) {
163 const FLAC__StreamMetadata_CueSheet_Track *tr = cs->tracks+track;
164 for(indx = 0; indx < tr->num_indices; indx++) {
165 flac_snprintf(spec, sizeof (spec), "%" PRIu64 ";", (tr->offset + tr->indices[indx].offset));
166 local_strcat(seekpoint_specification, spec);
175 FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename)
181 if(0 == cs_filename || strlen(cs_filename) == 0) {
182 flac_fprintf(stderr, "%s: ERROR: empty export file name\n", filename);
185 if(0 == strcmp(cs_filename, "-"))
188 f = flac_fopen(cs_filename, "w");
191 flac_fprintf(stderr, "%s: ERROR: can't open export file %s: %s\n", filename, cs_filename, strerror(errno));
195 reflen = strlen(filename) + 7 + 1;
196 if(0 == (ref = malloc(reflen))) {
197 flac_fprintf(stderr, "%s: ERROR: allocating memory\n", filename);
203 flac_snprintf(ref, reflen, "\"%s\" FLAC", filename);
205 grabbag__cuesheet_emit(f, cuesheet, ref);