From fd3b2704efc2b206784615c1a23eb25501842259 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 5 Sep 2024 15:14:37 +0200 Subject: Adding upstream version 1.4.3+ds. Signed-off-by: Daniel Baumann --- src/metaflac/operations_shorthand_cuesheet.c | 226 +++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 src/metaflac/operations_shorthand_cuesheet.c (limited to 'src/metaflac/operations_shorthand_cuesheet.c') diff --git a/src/metaflac/operations_shorthand_cuesheet.c b/src/metaflac/operations_shorthand_cuesheet.c new file mode 100644 index 0000000..13c4ded --- /dev/null +++ b/src/metaflac/operations_shorthand_cuesheet.c @@ -0,0 +1,226 @@ +/* metaflac - Command-line FLAC metadata editor + * Copyright (C) 2001-2009 Josh Coalson + * Copyright (C) 2011-2023 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 +#endif + +#include +#include +#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; + } + + if(sample_rate == 0) { + flac_fprintf(stderr, "%s: ERROR: cannot parse cuesheet when sample rate is unknown\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); + FLAC__metadata_object_delete(*cuesheet); + 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); +#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION + /* Delete output file when fuzzing */ + if(f != stdout) + flac_unlink(cs_filename); +#endif + + return true; +} -- cgit v1.2.3