| /* metaflac - Command-line FLAC metadata editor |
| * Copyright (C) 2001-2009 Josh Coalson |
| * Copyright (C) 2011-2016 Xiph.Org Foundation |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <errno.h> |
| #include <string.h> |
| #include "options.h" |
| #include "utils.h" |
| #include "FLAC/assert.h" |
| #include "share/grabbag.h" |
| #include "share/compat.h" |
| #include "operations_shorthand.h" |
| |
| 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); |
| static FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename); |
| |
| FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write) |
| { |
| FLAC__bool ok = true; |
| FLAC__StreamMetadata *cuesheet = 0; |
| FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); |
| FLAC__uint64 lead_out_offset = 0; |
| FLAC__bool is_cdda = false; |
| unsigned sample_rate = 0; |
| |
| if(0 == iterator) |
| die("out of memory allocating iterator"); |
| |
| FLAC__metadata_iterator_init(iterator, chain); |
| |
| do { |
| FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator); |
| if(block->type == FLAC__METADATA_TYPE_STREAMINFO) { |
| lead_out_offset = block->data.stream_info.total_samples; |
| if(lead_out_offset == 0) { |
| flac_fprintf(stderr, "%s: ERROR: FLAC file must have total_samples set in STREAMINFO in order to import/export cuesheet\n", filename); |
| FLAC__metadata_iterator_delete(iterator); |
| return false; |
| } |
| sample_rate = block->data.stream_info.sample_rate; |
| 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); |
| } |
| else if(block->type == FLAC__METADATA_TYPE_CUESHEET) |
| cuesheet = block; |
| } while(FLAC__metadata_iterator_next(iterator)); |
| |
| if(lead_out_offset == 0) { |
| flac_fprintf(stderr, "%s: ERROR: FLAC stream has no STREAMINFO block\n", filename); |
| FLAC__metadata_iterator_delete(iterator); |
| return false; |
| } |
| |
| switch(operation->type) { |
| case OP__IMPORT_CUESHEET_FROM: |
| if(0 != cuesheet) { |
| flac_fprintf(stderr, "%s: ERROR: FLAC file already has CUESHEET block\n", filename); |
| ok = false; |
| } |
| else { |
| 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); |
| if(ok) { |
| /* append CUESHEET block */ |
| while(FLAC__metadata_iterator_next(iterator)) |
| ; |
| if(!FLAC__metadata_iterator_insert_block_after(iterator, cuesheet)) { |
| print_error_with_chain_status(chain, "%s: ERROR: adding new CUESHEET block to metadata", filename); |
| FLAC__metadata_object_delete(cuesheet); |
| ok = false; |
| } |
| } |
| } |
| break; |
| case OP__EXPORT_CUESHEET_TO: |
| if(0 == cuesheet) { |
| flac_fprintf(stderr, "%s: ERROR: FLAC file has no CUESHEET block\n", filename); |
| ok = false; |
| } |
| else |
| ok = export_cs_to(filename, cuesheet, operation->argument.filename.value); |
| break; |
| default: |
| ok = false; |
| FLAC__ASSERT(0); |
| break; |
| }; |
| |
| FLAC__metadata_iterator_delete(iterator); |
| return ok; |
| } |
| |
| /* |
| * local routines |
| */ |
| |
| 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) |
| { |
| FILE *f; |
| const char *error_message; |
| char **seekpoint_specification = add_seekpoint_link? &(add_seekpoint_link->specification) : 0; |
| unsigned last_line_read; |
| |
| if(0 == cs_filename || strlen(cs_filename) == 0) { |
| flac_fprintf(stderr, "%s: ERROR: empty import file name\n", filename); |
| return false; |
| } |
| if(0 == strcmp(cs_filename, "-")) |
| f = stdin; |
| else |
| f = flac_fopen(cs_filename, "r"); |
| |
| if(0 == f) { |
| flac_fprintf(stderr, "%s: ERROR: can't open import file %s: %s\n", filename, cs_filename, strerror(errno)); |
| return false; |
| } |
| |
| *cuesheet = grabbag__cuesheet_parse(f, &error_message, &last_line_read, sample_rate, is_cdda, lead_out_offset); |
| |
| if(f != stdin) |
| fclose(f); |
| |
| if(0 == *cuesheet) { |
| flac_fprintf(stderr, "%s: ERROR: while parsing cuesheet \"%s\" on line %u: %s\n", filename, cs_filename, last_line_read, error_message); |
| return false; |
| } |
| |
| if(!FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/false, &error_message)) { |
| flac_fprintf(stderr, "%s: ERROR parsing cuesheet \"%s\": %s\n", filename, cs_filename, error_message); |
| return false; |
| } |
| |
| /* if we're expecting CDDA, warn about non-compliance */ |
| if(is_cdda && !FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/true, &error_message)) { |
| flac_fprintf(stderr, "%s: WARNING cuesheet \"%s\" is not audio CD compliant: %s\n", filename, cs_filename, error_message); |
| (*cuesheet)->data.cue_sheet.is_cd = false; |
| } |
| |
| /* add seekpoints for each index point if required */ |
| if(0 != seekpoint_specification) { |
| char spec[128]; |
| unsigned track, indx; |
| const FLAC__StreamMetadata_CueSheet *cs = &(*cuesheet)->data.cue_sheet; |
| if(0 == *seekpoint_specification) |
| *seekpoint_specification = local_strdup(""); |
| for(track = 0; track < cs->num_tracks; track++) { |
| const FLAC__StreamMetadata_CueSheet_Track *tr = cs->tracks+track; |
| for(indx = 0; indx < tr->num_indices; indx++) { |
| flac_snprintf(spec, sizeof (spec), "%" PRIu64 ";", (tr->offset + tr->indices[indx].offset)); |
| local_strcat(seekpoint_specification, spec); |
| } |
| } |
| } |
| |
| *needs_write = true; |
| return true; |
| } |
| |
| FLAC__bool export_cs_to(const char *filename, const FLAC__StreamMetadata *cuesheet, const char *cs_filename) |
| { |
| FILE *f; |
| char *ref = 0; |
| size_t reflen; |
| |
| if(0 == cs_filename || strlen(cs_filename) == 0) { |
| flac_fprintf(stderr, "%s: ERROR: empty export file name\n", filename); |
| return false; |
| } |
| if(0 == strcmp(cs_filename, "-")) |
| f = stdout; |
| else |
| f = flac_fopen(cs_filename, "w"); |
| |
| if(0 == f) { |
| flac_fprintf(stderr, "%s: ERROR: can't open export file %s: %s\n", filename, cs_filename, strerror(errno)); |
| return false; |
| } |
| |
| reflen = strlen(filename) + 7 + 1; |
| if(0 == (ref = malloc(reflen))) { |
| flac_fprintf(stderr, "%s: ERROR: allocating memory\n", filename); |
| if(f != stdout) |
| fclose(f); |
| return false; |
| } |
| |
| flac_snprintf(ref, reflen, "\"%s\" FLAC", filename); |
| |
| grabbag__cuesheet_emit(f, cuesheet, ref); |
| |
| free(ref); |
| |
| if(f != stdout) |
| fclose(f); |
| |
| return true; |
| } |