/* metaflac - Command-line FLAC metadata editor * Copyright (C) 2001,2002 Josh Coalson * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /*@@@ more powerful operations yet to add: add a seektable, using same args as flac */ #if HAVE_CONFIG_H # include #endif #include "FLAC/assert.h" #include "FLAC/metadata.h" #include "share/utf8.h" #include #include #include #include #include #if 0 /*[JEC] was:#if HAVE_GETOPT_LONG*/ /*[JEC] see flac/include/share/getopt.h as to why the change */ # include #else # include "share/getopt.h" #endif /* FLAC__share__getopt format struct; note we don't use short options so we just set the 'val' field to 0 everywhere to indicate a valid option. */ static struct FLAC__share__option long_options_[] = { /* global options */ { "preserve-modtime", 0, 0, 0 }, { "with-filename", 0, 0, 0 }, { "no-filename", 0, 0, 0 }, { "no-utf8-convert", 0, 0, 0 }, { "dont-use-padding", 0, 0, 0 }, /* shorthand operations */ { "show-md5sum", 0, 0, 0 }, { "show-min-blocksize", 0, 0, 0 }, { "show-max-blocksize", 0, 0, 0 }, { "show-min-framesize", 0, 0, 0 }, { "show-max-framesize", 0, 0, 0 }, { "show-sample-rate", 0, 0, 0 }, { "show-channels", 0, 0, 0 }, { "show-bps", 0, 0, 0 }, { "show-total-samples", 0, 0, 0 }, { "set-md5sum", 1, 0, 0 }, /* undocumented */ { "set-min-blocksize", 1, 0, 0 }, /* undocumented */ { "set-max-blocksize", 1, 0, 0 }, /* undocumented */ { "set-min-framesize", 1, 0, 0 }, /* undocumented */ { "set-max-framesize", 1, 0, 0 }, /* undocumented */ { "set-sample-rate", 1, 0, 0 }, /* undocumented */ { "set-channels", 1, 0, 0 }, /* undocumented */ { "set-bps", 1, 0, 0 }, /* undocumented */ { "set-total-samples", 1, 0, 0 }, /* undocumented */ { "show-vc-vendor", 0, 0, 0 }, { "show-vc-field", 1, 0, 0 }, { "remove-vc-all", 0, 0, 0 }, { "remove-vc-field", 1, 0, 0 }, { "remove-vc-firstfield", 1, 0, 0 }, { "set-vc-field", 1, 0, 0 }, { "import-vc-from", 1, 0, 0 }, { "export-vc-to", 1, 0, 0 }, { "add-padding", 1, 0, 0 }, /* major operations */ { "help", 0, 0, 0 }, { "version", 0, 0, 0 }, { "list", 0, 0, 0 }, { "append", 0, 0, 0 }, { "remove", 0, 0, 0 }, { "remove-all", 0, 0, 0 }, { "merge-padding", 0, 0, 0 }, { "sort-padding", 0, 0, 0 }, /* major operation arguments */ { "block-number", 1, 0, 0 }, { "block-type", 1, 0, 0 }, { "except-block-type", 1, 0, 0 }, { "data-format", 1, 0, 0 }, { "application-data-format", 1, 0, 0 }, { "from-file", 1, 0, 0 }, {0, 0, 0, 0} }; typedef enum { OP__SHOW_MD5SUM, OP__SHOW_MIN_BLOCKSIZE, OP__SHOW_MAX_BLOCKSIZE, OP__SHOW_MIN_FRAMESIZE, OP__SHOW_MAX_FRAMESIZE, OP__SHOW_SAMPLE_RATE, OP__SHOW_CHANNELS, OP__SHOW_BPS, OP__SHOW_TOTAL_SAMPLES, OP__SET_MD5SUM, OP__SET_MIN_BLOCKSIZE, OP__SET_MAX_BLOCKSIZE, OP__SET_MIN_FRAMESIZE, OP__SET_MAX_FRAMESIZE, OP__SET_SAMPLE_RATE, OP__SET_CHANNELS, OP__SET_BPS, OP__SET_TOTAL_SAMPLES, OP__SHOW_VC_VENDOR, OP__SHOW_VC_FIELD, OP__REMOVE_VC_ALL, OP__REMOVE_VC_FIELD, OP__REMOVE_VC_FIRSTFIELD, OP__SET_VC_FIELD, OP__IMPORT_VC_FROM, OP__EXPORT_VC_TO, OP__ADD_PADDING, OP__LIST, OP__APPEND, OP__REMOVE, OP__REMOVE_ALL, OP__MERGE_PADDING, OP__SORT_PADDING } OperationType; typedef enum { ARG__BLOCK_NUMBER, ARG__BLOCK_TYPE, ARG__EXCEPT_BLOCK_TYPE, ARG__DATA_FORMAT, ARG__FROM_FILE } ArgumentType; typedef struct { FLAC__byte value[16]; } Argument_StreaminfoMD5; typedef struct { FLAC__uint32 value; } Argument_StreaminfoUInt32; typedef struct { FLAC__uint64 value; } Argument_StreaminfoUInt64; typedef struct { char *value; } Argument_VcFieldName; typedef struct { char *field; /* the whole field as passed on the command line, i.e. "NAME=VALUE" */ char *field_name; /* according to the vorbis spec, field values can contain \0 so simple C strings are not enough here */ unsigned field_value_length; char *field_value; } Argument_VcField; typedef struct { char *value; } Argument_VcFilename; typedef struct { unsigned num_entries; unsigned *entries; } Argument_BlockNumber; typedef struct { FLAC__MetadataType type; char application_id[4]; /* only relevant if type == FLAC__STREAM_METADATA_TYPE_APPLICATION */ FLAC__bool filter_application_by_id; } Argument_BlockTypeEntry; typedef struct { unsigned num_entries; Argument_BlockTypeEntry *entries; } Argument_BlockType; typedef struct { FLAC__bool is_binary; } Argument_DataFormat; typedef struct { char *file_name; } Argument_FromFile; typedef struct { unsigned length; } Argument_AddPadding; typedef struct { OperationType type; union { Argument_StreaminfoMD5 streaminfo_md5; Argument_StreaminfoUInt32 streaminfo_uint32; Argument_StreaminfoUInt64 streaminfo_uint64; Argument_VcFieldName vc_field_name; Argument_VcField vc_field; Argument_VcFilename vc_filename; Argument_AddPadding add_padding; } argument; } Operation; typedef struct { ArgumentType type; union { Argument_BlockNumber block_number; Argument_BlockType block_type; Argument_DataFormat data_format; Argument_FromFile from_file; } value; } Argument; typedef struct { FLAC__bool preserve_modtime; FLAC__bool prefix_with_filename; FLAC__bool utf8_convert; FLAC__bool use_padding; FLAC__bool show_long_help; FLAC__bool show_version; FLAC__bool application_data_format_is_hexdump; struct { Operation *operations; unsigned num_operations; unsigned capacity; } ops; struct { struct { unsigned num_shorthand_ops; unsigned num_major_ops; FLAC__bool has_block_type; FLAC__bool has_except_block_type; } checks; Argument *arguments; unsigned num_arguments; unsigned capacity; } args; unsigned num_files; char **filenames; } CommandLineOptions; static void die(const char *message); static void init_options(CommandLineOptions *options); static FLAC__bool parse_options(int argc, char *argv[], CommandLineOptions *options); static FLAC__bool parse_option(int option_index, const char *option_argument, CommandLineOptions *options); static void free_options(CommandLineOptions *options); static void append_new_operation(CommandLineOptions *options, Operation operation); static void append_new_argument(CommandLineOptions *options, Argument argument); static Operation *append_major_operation(CommandLineOptions *options, OperationType type); static Operation *append_shorthand_operation(CommandLineOptions *options, OperationType type); static Argument *append_argument(CommandLineOptions *options, ArgumentType type); static void show_version(); static int short_usage(const char *message, ...); static int long_usage(const char *message, ...); static char *local_strdup(const char *source); static FLAC__bool parse_md5(const char *src, FLAC__byte dest[16]); static FLAC__bool parse_uint32(const char *src, FLAC__uint32 *dest); static FLAC__bool parse_uint64(const char *src, FLAC__uint64 *dest); static FLAC__bool parse_filename(const char *src, char **dest); static FLAC__bool parse_vorbis_comment_field(const char *field_ref, char **field, char **name, char **value, unsigned *length, const char **violation); static FLAC__bool parse_vorbis_comment_field_name(const char *field_ref, char **name, const char **violation); static FLAC__bool parse_add_padding(const char *in, unsigned *out); static FLAC__bool parse_block_number(const char *in, Argument_BlockNumber *out); static FLAC__bool parse_block_type(const char *in, Argument_BlockType *out); static FLAC__bool parse_data_format(const char *in, Argument_DataFormat *out); static FLAC__bool parse_application_data_format(const char *in, FLAC__bool *out); static FLAC__bool do_operations(const CommandLineOptions *options); static FLAC__bool do_major_operation(const CommandLineOptions *options); static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options); static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options); static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options); static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options); static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options); static FLAC__bool do_shorthand_operations(const CommandLineOptions *options); static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options); static FLAC__bool do_shorthand_operation(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert); static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write); static FLAC__bool do_shorthand_operation__streaminfo(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write); static FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw); static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number); static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool hexdump_application); static void write_vc_field(const char *filename, const FLAC__StreamMetadata_VorbisComment_Entry *entry, FLAC__bool raw, FILE *f); static void write_vc_fields(const char *filename, const char *field_name, const FLAC__StreamMetadata_VorbisComment_Entry entry[], unsigned num_entries, FLAC__bool raw, FILE *f); static FLAC__bool remove_vc_all(const char *filename, FLAC__StreamMetadata *block, FLAC__bool *needs_write); static FLAC__bool remove_vc_field(FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write); static FLAC__bool remove_vc_firstfield(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write); static FLAC__bool set_vc_field(const char *filename, FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw); static FLAC__bool import_vc_from(const char *filename, FLAC__StreamMetadata *block, const Argument_VcFilename *vc_filename, FLAC__bool *needs_write, FLAC__bool raw); static FLAC__bool export_vc_to(const char *filename, FLAC__StreamMetadata *block, const Argument_VcFilename *vc_filename, FLAC__bool raw); static FLAC__bool field_name_matches_entry(const char *field_name, unsigned field_name_length, const FLAC__StreamMetadata_VorbisComment_Entry *entry); static void hexdump(const char *filename, const FLAC__byte *buf, unsigned bytes, const char *indent); static void undocumented_warning(const char *opt); int main(int argc, char *argv[]) { CommandLineOptions options; int ret = 0; init_options(&options); if(parse_options(argc, argv, &options)) ret = !do_operations(&options); free_options(&options); return ret; } void die(const char *message) { FLAC__ASSERT(0 != message); fprintf(stderr, "ERROR: %s\n", message); exit(1); } void init_options(CommandLineOptions *options) { options->preserve_modtime = false; /* '2' is a hack to mean "use default if not forced on command line" */ FLAC__ASSERT(true != 2); options->prefix_with_filename = 2; options->utf8_convert = true; options->use_padding = true; options->show_long_help = false; options->show_version = false; options->application_data_format_is_hexdump = false; options->ops.operations = 0; options->ops.num_operations = 0; options->ops.capacity = 0; options->args.arguments = 0; options->args.num_arguments = 0; options->args.capacity = 0; options->args.checks.num_shorthand_ops = 0; options->args.checks.num_major_ops = 0; options->args.checks.has_block_type = false; options->args.checks.has_except_block_type = false; options->num_files = 0; options->filenames = 0; } FLAC__bool parse_options(int argc, char *argv[], CommandLineOptions *options) { int ret; int option_index = 1; FLAC__bool had_error = false; while ((ret = FLAC__share__getopt_long(argc, argv, "", long_options_, &option_index)) != -1) { switch (ret) { case 0: had_error |= !parse_option(option_index, FLAC__share__optarg, options); break; case '?': case ':': had_error = true; break; default: FLAC__ASSERT(0); break; } } if(options->prefix_with_filename == 2) options->prefix_with_filename = (argc - FLAC__share__optind > 1); if(FLAC__share__optind >= argc && !options->show_long_help && !options->show_version) { fprintf(stderr,"ERROR: you must specify at least one FLAC file;\n"); fprintf(stderr," metaflac cannot be used as a pipe\n"); had_error = true; } options->num_files = argc - FLAC__share__optind; if(options->num_files > 0) { unsigned i = 0; if(0 == (options->filenames = malloc(sizeof(char *) * options->num_files))) die("out of memory allocating space for file names list"); while(FLAC__share__optind < argc) options->filenames[i++] = local_strdup(argv[FLAC__share__optind++]); } if(options->args.checks.num_major_ops > 0) { if(options->args.checks.num_major_ops > 1) { fprintf(stderr, "ERROR: you may only specify one major operation at a time\n"); had_error = true; } else if(options->args.checks.num_shorthand_ops > 0) { fprintf(stderr, "ERROR: you may not mix shorthand and major operations\n"); had_error = true; } } if(options->args.checks.has_block_type && options->args.checks.has_except_block_type) { fprintf(stderr, "ERROR: you may not specify both '--block-type' and '--except-block-type'\n"); had_error = true; } if(had_error) short_usage(0); return !had_error; } FLAC__bool parse_option(int option_index, const char *option_argument, CommandLineOptions *options) { const char *opt = long_options_[option_index].name; Operation *op; Argument *arg; FLAC__bool ok = true; if(0 == strcmp(opt, "preserve-modtime")) { options->preserve_modtime = true; } else if(0 == strcmp(opt, "with-filename")) { options->prefix_with_filename = true; } else if(0 == strcmp(opt, "no-filename")) { options->prefix_with_filename = false; } else if(0 == strcmp(opt, "no-utf8-convert")) { options->utf8_convert = false; } else if(0 == strcmp(opt, "dont-use-padding")) { options->use_padding = false; } else if(0 == strcmp(opt, "show-md5sum")) { (void) append_shorthand_operation(options, OP__SHOW_MD5SUM); } else if(0 == strcmp(opt, "show-min-blocksize")) { (void) append_shorthand_operation(options, OP__SHOW_MIN_BLOCKSIZE); } else if(0 == strcmp(opt, "show-max-blocksize")) { (void) append_shorthand_operation(options, OP__SHOW_MAX_BLOCKSIZE); } else if(0 == strcmp(opt, "show-min-framesize")) { (void) append_shorthand_operation(options, OP__SHOW_MIN_FRAMESIZE); } else if(0 == strcmp(opt, "show-max-framesize")) { (void) append_shorthand_operation(options, OP__SHOW_MAX_FRAMESIZE); } else if(0 == strcmp(opt, "show-sample-rate")) { (void) append_shorthand_operation(options, OP__SHOW_SAMPLE_RATE); } else if(0 == strcmp(opt, "show-channels")) { (void) append_shorthand_operation(options, OP__SHOW_CHANNELS); } else if(0 == strcmp(opt, "show-bps")) { (void) append_shorthand_operation(options, OP__SHOW_BPS); } else if(0 == strcmp(opt, "show-total-samples")) { (void) append_shorthand_operation(options, OP__SHOW_TOTAL_SAMPLES); } else if(0 == strcmp(opt, "set-md5sum")) { op = append_shorthand_operation(options, OP__SET_MD5SUM); FLAC__ASSERT(0 != option_argument); if(!parse_md5(option_argument, op->argument.streaminfo_md5.value)) { fprintf(stderr, "ERROR (--%s): bad MD5 sum\n", opt); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-min-blocksize")) { op = append_shorthand_operation(options, OP__SET_MIN_BLOCKSIZE); if(!parse_uint32(option_argument, &(op->argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value < FLAC__MIN_BLOCK_SIZE || op->argument.streaminfo_uint32.value > FLAC__MAX_BLOCK_SIZE) { fprintf(stderr, "ERROR (--%s): value must be >= %u and <= %u\n", opt, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-max-blocksize")) { op = append_shorthand_operation(options, OP__SET_MAX_BLOCKSIZE); if(!parse_uint32(option_argument, &(op->argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value < FLAC__MIN_BLOCK_SIZE || op->argument.streaminfo_uint32.value > FLAC__MAX_BLOCK_SIZE) { fprintf(stderr, "ERROR (--%s): value must be >= %u and <= %u\n", opt, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-min-framesize")) { op = append_shorthand_operation(options, OP__SET_MIN_FRAMESIZE); if(!parse_uint32(option_argument, &(op->argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value >= (1u<argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value >= (1u<argument.streaminfo_uint32.value)) || !FLAC__format_sample_rate_is_valid(op->argument.streaminfo_uint32.value)) { fprintf(stderr, "ERROR (--%s): invalid sample rate\n", opt); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-channels")) { op = append_shorthand_operation(options, OP__SET_CHANNELS); if(!parse_uint32(option_argument, &(op->argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value > FLAC__MAX_CHANNELS) { fprintf(stderr, "ERROR (--%s): value must be > 0 and <= %u\n", opt, FLAC__MAX_CHANNELS); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-bps")) { op = append_shorthand_operation(options, OP__SET_BPS); if(!parse_uint32(option_argument, &(op->argument.streaminfo_uint32.value)) || op->argument.streaminfo_uint32.value < FLAC__MIN_BITS_PER_SAMPLE || op->argument.streaminfo_uint32.value > FLAC__MAX_BITS_PER_SAMPLE) { fprintf(stderr, "ERROR (--%s): value must be >= %u and <= %u\n", opt, FLAC__MIN_BITS_PER_SAMPLE, FLAC__MAX_BITS_PER_SAMPLE); ok = false; } else undocumented_warning(opt); } else if(0 == strcmp(opt, "set-total-samples")) { op = append_shorthand_operation(options, OP__SET_TOTAL_SAMPLES); if(!parse_uint64(option_argument, &(op->argument.streaminfo_uint64.value)) || op->argument.streaminfo_uint64.value >= (1u<argument.vc_field_name.value), &violation)) { FLAC__ASSERT(0 != violation); fprintf(stderr, "ERROR (--%s): malformed vorbis comment field name \"%s\",\n %s\n", opt, option_argument, violation); ok = false; } } else if(0 == strcmp(opt, "remove-vc-all")) { (void) append_shorthand_operation(options, OP__REMOVE_VC_ALL); } else if(0 == strcmp(opt, "remove-vc-field")) { const char *violation; op = append_shorthand_operation(options, OP__REMOVE_VC_FIELD); FLAC__ASSERT(0 != option_argument); if(!parse_vorbis_comment_field_name(option_argument, &(op->argument.vc_field_name.value), &violation)) { FLAC__ASSERT(0 != violation); fprintf(stderr, "ERROR (--%s): malformed vorbis comment field name \"%s\",\n %s\n", opt, option_argument, violation); ok = false; } } else if(0 == strcmp(opt, "remove-vc-firstfield")) { const char *violation; op = append_shorthand_operation(options, OP__REMOVE_VC_FIRSTFIELD); FLAC__ASSERT(0 != option_argument); if(!parse_vorbis_comment_field_name(option_argument, &(op->argument.vc_field_name.value), &violation)) { FLAC__ASSERT(0 != violation); fprintf(stderr, "ERROR (--%s): malformed vorbis comment field name \"%s\",\n %s\n", opt, option_argument, violation); ok = false; } } else if(0 == strcmp(opt, "set-vc-field")) { const char *violation; op = append_shorthand_operation(options, OP__SET_VC_FIELD); FLAC__ASSERT(0 != option_argument); if(!parse_vorbis_comment_field(option_argument, &(op->argument.vc_field.field), &(op->argument.vc_field.field_name), &(op->argument.vc_field.field_value), &(op->argument.vc_field.field_value_length), &violation)) { FLAC__ASSERT(0 != violation); fprintf(stderr, "ERROR (--%s): malformed vorbis comment field \"%s\",\n %s\n", opt, option_argument, violation); ok = false; } } else if(0 == strcmp(opt, "import-vc-from")) { op = append_shorthand_operation(options, OP__IMPORT_VC_FROM); FLAC__ASSERT(0 != option_argument); if(!parse_filename(option_argument, &(op->argument.vc_filename.value))) { fprintf(stderr, "ERROR (--%s): missing filename\n", opt); ok = false; } } else if(0 == strcmp(opt, "export-vc-to")) { op = append_shorthand_operation(options, OP__EXPORT_VC_TO); FLAC__ASSERT(0 != option_argument); if(!parse_filename(option_argument, &(op->argument.vc_filename.value))) { fprintf(stderr, "ERROR (--%s): missing filename\n", opt); ok = false; } } else if(0 == strcmp(opt, "add-padding")) { op = append_shorthand_operation(options, OP__ADD_PADDING); FLAC__ASSERT(0 != option_argument); if(!parse_add_padding(option_argument, &(op->argument.add_padding.length))) { fprintf(stderr, "ERROR (--%s): illegal length \"%s\", length must be >= 0 and < 2^%u\n", opt, option_argument, FLAC__STREAM_METADATA_LENGTH_LEN); ok = false; } } else if(0 == strcmp(opt, "help")) { options->show_long_help = true; } else if(0 == strcmp(opt, "version")) { options->show_version = true; } else if(0 == strcmp(opt, "list")) { (void) append_major_operation(options, OP__LIST); } else if(0 == strcmp(opt, "append")) { (void) append_major_operation(options, OP__APPEND); } else if(0 == strcmp(opt, "remove")) { (void) append_major_operation(options, OP__REMOVE); } else if(0 == strcmp(opt, "remove-all")) { (void) append_major_operation(options, OP__REMOVE_ALL); } else if(0 == strcmp(opt, "merge-padding")) { (void) append_major_operation(options, OP__MERGE_PADDING); } else if(0 == strcmp(opt, "sort-padding")) { (void) append_major_operation(options, OP__SORT_PADDING); } else if(0 == strcmp(opt, "block-number")) { arg = append_argument(options, ARG__BLOCK_NUMBER); FLAC__ASSERT(0 != option_argument); if(!parse_block_number(option_argument, &(arg->value.block_number))) { fprintf(stderr, "ERROR: malformed block number specification \"%s\"\n", option_argument); ok = false; } } else if(0 == strcmp(opt, "block-type")) { arg = append_argument(options, ARG__BLOCK_TYPE); FLAC__ASSERT(0 != option_argument); if(!parse_block_type(option_argument, &(arg->value.block_type))) { fprintf(stderr, "ERROR (--%s): malformed block type specification \"%s\"\n", opt, option_argument); ok = false; } options->args.checks.has_block_type = true; } else if(0 == strcmp(opt, "except-block-type")) { arg = append_argument(options, ARG__EXCEPT_BLOCK_TYPE); FLAC__ASSERT(0 != option_argument); if(!parse_block_type(option_argument, &(arg->value.block_type))) { fprintf(stderr, "ERROR (--%s): malformed block type specification \"%s\"\n", opt, option_argument); ok = false; } options->args.checks.has_except_block_type = true; } else if(0 == strcmp(opt, "data-format")) { arg = append_argument(options, ARG__DATA_FORMAT); FLAC__ASSERT(0 != option_argument); if(!parse_data_format(option_argument, &(arg->value.data_format))) { fprintf(stderr, "ERROR (--%s): illegal data format \"%s\"\n", opt, option_argument); ok = false; } } else if(0 == strcmp(opt, "application-data-format")) { FLAC__ASSERT(0 != option_argument); if(!parse_application_data_format(option_argument, &(options->application_data_format_is_hexdump))) { fprintf(stderr, "ERROR (--%s): illegal application data format \"%s\"\n", opt, option_argument); ok = false; } } else if(0 == strcmp(opt, "from-file")) { arg = append_argument(options, ARG__FROM_FILE); FLAC__ASSERT(0 != option_argument); arg->value.from_file.file_name = local_strdup(option_argument); } else { FLAC__ASSERT(0); } return ok; } void free_options(CommandLineOptions *options) { unsigned i; Operation *op; Argument *arg; FLAC__ASSERT(0 == options->ops.operations || options->ops.num_operations > 0); FLAC__ASSERT(0 == options->args.arguments || options->args.num_arguments > 0); for(i = 0, op = options->ops.operations; i < options->ops.num_operations; i++, op++) { switch(op->type) { case OP__SHOW_VC_FIELD: case OP__REMOVE_VC_FIELD: case OP__REMOVE_VC_FIRSTFIELD: if(0 != op->argument.vc_field_name.value) free(op->argument.vc_field_name.value); break; case OP__SET_VC_FIELD: if(0 != op->argument.vc_field.field) free(op->argument.vc_field.field); if(0 != op->argument.vc_field.field_name) free(op->argument.vc_field.field_name); if(0 != op->argument.vc_field.field_value) free(op->argument.vc_field.field_value); break; case OP__IMPORT_VC_FROM: case OP__EXPORT_VC_TO: if(0 != op->argument.vc_filename.value) free(op->argument.vc_filename.value); break; default: break; } } for(i = 0, arg = options->args.arguments; i < options->args.num_arguments; i++, arg++) { switch(arg->type) { case ARG__BLOCK_NUMBER: if(0 != arg->value.block_number.entries) free(arg->value.block_number.entries); break; case ARG__BLOCK_TYPE: case ARG__EXCEPT_BLOCK_TYPE: if(0 != arg->value.block_type.entries) free(arg->value.block_type.entries); break; case ARG__FROM_FILE: if(0 != arg->value.from_file.file_name) free(arg->value.from_file.file_name); break; default: break; } } if(0 != options->ops.operations) free(options->ops.operations); if(0 != options->args.arguments) free(options->args.arguments); if(0 != options->filenames) free(options->filenames); } void append_new_operation(CommandLineOptions *options, Operation operation) { if(options->ops.capacity == 0) { options->ops.capacity = 50; if(0 == (options->ops.operations = malloc(sizeof(Operation) * options->ops.capacity))) die("out of memory allocating space for option list"); memset(options->ops.operations, 0, sizeof(Operation) * options->ops.capacity); } if(options->ops.capacity <= options->ops.num_operations) { unsigned original_capacity = options->ops.capacity; options->ops.capacity *= 4; if(0 == (options->ops.operations = realloc(options->ops.operations, sizeof(Operation) * options->ops.capacity))) die("out of memory allocating space for option list"); memset(options->ops.operations + original_capacity, 0, sizeof(Operation) * (options->ops.capacity - original_capacity)); } options->ops.operations[options->ops.num_operations++] = operation; } void append_new_argument(CommandLineOptions *options, Argument argument) { if(options->args.capacity == 0) { options->args.capacity = 50; if(0 == (options->args.arguments = malloc(sizeof(Argument) * options->args.capacity))) die("out of memory allocating space for option list"); memset(options->args.arguments, 0, sizeof(Argument) * options->args.capacity); } if(options->args.capacity <= options->args.num_arguments) { unsigned original_capacity = options->args.capacity; options->args.capacity *= 4; if(0 == (options->args.arguments = realloc(options->args.arguments, sizeof(Argument) * options->args.capacity))) die("out of memory allocating space for option list"); memset(options->args.arguments + original_capacity, 0, sizeof(Argument) * (options->args.capacity - original_capacity)); } options->args.arguments[options->args.num_arguments++] = argument; } Operation *append_major_operation(CommandLineOptions *options, OperationType type) { Operation op; memset(&op, 0, sizeof(op)); op.type = type; append_new_operation(options, op); options->args.checks.num_major_ops++; return options->ops.operations + (options->ops.num_operations - 1); } Operation *append_shorthand_operation(CommandLineOptions *options, OperationType type) { Operation op; memset(&op, 0, sizeof(op)); op.type = type; append_new_operation(options, op); options->args.checks.num_shorthand_ops++; return options->ops.operations + (options->ops.num_operations - 1); } Argument *append_argument(CommandLineOptions *options, ArgumentType type) { Argument arg; memset(&arg, 0, sizeof(arg)); arg.type = type; append_new_argument(options, arg); return options->args.arguments + (options->args.num_arguments - 1); } void show_version() { printf("metaflac %s\n", FLAC__VERSION_STRING); } static void usage_header(FILE *out) { fprintf(out, "==============================================================================\n"); fprintf(out, "metaflac - Command-line FLAC metadata editor version %s\n", FLAC__VERSION_STRING); fprintf(out, "Copyright (C) 2001,2002 Josh Coalson\n"); fprintf(out, "\n"); fprintf(out, "This program is free software; you can redistribute it and/or\n"); fprintf(out, "modify it under the terms of the GNU General Public License\n"); fprintf(out, "as published by the Free Software Foundation; either version 2\n"); fprintf(out, "of the License, or (at your option) any later version.\n"); fprintf(out, "\n"); fprintf(out, "This program is distributed in the hope that it will be useful,\n"); fprintf(out, "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"); fprintf(out, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"); fprintf(out, "GNU General Public License for more details.\n"); fprintf(out, "\n"); fprintf(out, "You should have received a copy of the GNU General Public License\n"); fprintf(out, "along with this program; if not, write to the Free Software\n"); fprintf(out, "Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n"); fprintf(out, "==============================================================================\n"); } static void usage_summary(FILE *out) { fprintf(out, "Usage:\n"); fprintf(out, " metaflac [options] [operations] FLACfile [FLACfile ...]\n"); fprintf(out, "\n"); fprintf(out, "Use metaflac to list, add, remove, or edit metadata in one or more FLAC files.\n"); fprintf(out, "You may perform one major operation, or many shorthand operations at a time.\n"); fprintf(out, "\n"); fprintf(out, "Options:\n"); fprintf(out, "--preserve-modtime Preserve the original modification time in spite of edits\n"); fprintf(out, "--with-filename Prefix each output line with the FLAC file name\n"); fprintf(out, " (the default if more than one FLAC file is specified)\n"); fprintf(out, "--no-filename Do not prefix each output line with the FLAC file name\n"); fprintf(out, " (the default if only one FLAC file is specified)\n"); fprintf(out, "--no-utf8-convert Do not convert Vorbis comments from UTF-8 to local charset,\n"); fprintf(out, " or vice versa. This is useful for scripts.\n"); fprintf(out, "--dont-use-padding By default metaflac tries to use padding where possible\n"); fprintf(out, " to avoid rewriting the entire file if the metadata size\n"); fprintf(out, " changes. Use this option to tell metaflac to not take\n"); fprintf(out, " advantage of padding this way.\n"); } int short_usage(const char *message, ...) { va_list args; if(message) { va_start(args, message); (void) vfprintf(stderr, message, args); va_end(args); } usage_header(stderr); fprintf(stderr, "\n"); fprintf(stderr, "This is the short help; for full help use 'metaflac --help'\n"); fprintf(stderr, "\n"); usage_summary(stderr); return message? 1 : 0; } int long_usage(const char *message, ...) { FILE *out = (message? stderr : stdout); va_list args; if(message) { va_start(args, message); (void) vfprintf(stderr, message, args); va_end(args); } usage_header(out); fprintf(out, "\n"); usage_summary(out); fprintf(out, "\n"); fprintf(out, "Shorthand operations:\n"); fprintf(out, "--show-md5sum Show the MD5 signature from the STREAMINFO block.\n"); fprintf(out, "--show-min-blocksize Show the minimum block size from the STREAMINFO block.\n"); fprintf(out, "--show-max-blocksize Show the maximum block size from the STREAMINFO block.\n"); fprintf(out, "--show-min-framesize Show the minimum frame size from the STREAMINFO block.\n"); fprintf(out, "--show-max-framesize Show the maximum frame size from the STREAMINFO block.\n"); fprintf(out, "--show-sample-rate Show the sample rate from the STREAMINFO block.\n"); fprintf(out, "--show-channels Show the number of channels from the STREAMINFO block.\n"); fprintf(out, "--show-bps Show the # of bits per sample from the STREAMINFO block.\n"); fprintf(out, "--show-total-samples Show the total # of samples from the STREAMINFO block.\n"); fprintf(out, "\n"); fprintf(out, "--show-vc-vendor Show the vendor string from the VORBIS_COMMENT block.\n"); fprintf(out, "--show-vc-field=name Show all Vorbis comment fields where the the field name\n"); fprintf(out, " matches 'name'.\n"); fprintf(out, "--remove-vc-field=name\n"); fprintf(out, " Remove all Vorbis comment fields whose field name is\n"); fprintf(out, " 'name'.\n"); fprintf(out, "--remove-vc-firstfield=name\n"); fprintf(out, " Remove first Vorbis comment field whose field name is\n"); fprintf(out, " 'name'.\n"); fprintf(out, "--remove-vc-all Remove all Vorbis comment fields, leaving only the\n"); fprintf(out, " vendor string in the VORBIS_COMMENT block.\n"); fprintf(out, "--set-vc-field=field Add a Vorbis comment field. The field must comply with\n"); fprintf(out, " the Vorbis comment spec, of the form \"NAME=VALUE\". If\n"); fprintf(out, " there is currently no VORBIS_COMMENT block, one will be\n"); fprintf(out, " created.\n"); fprintf(out, "--import-vc-from=file Import Vorbis comments from a file. Use '-' for stdin.\n"); fprintf(out, " Each line should be of the form NAME=VALUE. Multi-\n"); fprintf(out, " line comments are currently not supported. Specify\n"); fprintf(out, " --remove-vc-all and/or --no-utf8-convert before\n"); fprintf(out, " --import-vc-from if necessary.\n"); fprintf(out, "--export-vc-to=file Export Vorbis comments to a file. Use '-' for stdin.\n"); fprintf(out, " Each line will be of the form NAME=VALUE. Specify\n"); fprintf(out, " --no-utf8-convert if necessary.\n"); fprintf(out, "--add-padding=length Add a padding block of the given length (in bytes).\n"); fprintf(out, " The overall length of the new block will be 4 + length;\n"); fprintf(out, " the extra 4 bytes is for the metadata block header.\n"); fprintf(out, "\n"); fprintf(out, "Major operations:\n"); fprintf(out, "--version\n"); fprintf(out, " Show the metaflac version number.\n"); fprintf(out, "--list\n"); fprintf(out, " List the contents of one or more metadata blocks to stdout. By default,\n"); fprintf(out, " all metadata blocks are listed in text format. Use the following options\n"); fprintf(out, " to change this behavior:\n"); fprintf(out, "\n"); fprintf(out, " --block-number=#[,#[...]]\n"); fprintf(out, " An optional comma-separated list of block numbers to display. The first\n"); fprintf(out, " block, the STREAMINFO block, is block 0.\n"); fprintf(out, "\n"); fprintf(out, " --block-type=type[,type[...]]\n"); fprintf(out, " --except-block-type=type[,type[...]]\n"); fprintf(out, " An optional comma-separated list of block types to included or ignored\n"); fprintf(out, " with this option. Use only one of --block-type or --except-block-type.\n"); fprintf(out, " The valid block types are: STREAMINFO, PADDING, APPLICATION, SEEKTABLE,\n"); fprintf(out, " VORBIS_COMMENT. You may narrow down the types of APPLICATION blocks\n"); fprintf(out, " displayed as follows:\n"); fprintf(out, " APPLICATION:abcd The APPLICATION block(s) whose textual repre-\n"); fprintf(out, " sentation of the 4-byte ID is \"abcd\"\n"); fprintf(out, " APPLICATION:0xXXXXXXXX The APPLICATION block(s) whose hexadecimal big-\n"); fprintf(out, " endian representation of the 4-byte ID is\n"); fprintf(out, " \"0xXXXXXXXX\". For the example \"abcd\" above the\n"); fprintf(out, " hexadecimal equivalalent is 0x61626364\n"); fprintf(out, "\n"); fprintf(out, " NOTE: if both --block-number and --[except-]block-type are specified,\n"); fprintf(out, " the result is the logical AND of both arguments.\n"); fprintf(out, "\n"); #if 0 /*@@@ not implemented yet */ fprintf(out, " --data-format=binary|text\n"); fprintf(out, " By default a human-readable text representation of the data is displayed.\n"); fprintf(out, " You may specify --data-format=binary to dump the raw binary form of each\n"); fprintf(out, " metadata block. The output can be read in using a subsequent call to\n"); fprintf(out, " "metaflac --append --from-file=..."\n"); fprintf(out, "\n"); #endif fprintf(out, " --application-data-format=hexdump|text\n"); fprintf(out, " If the application block you are displaying contains binary data but your\n"); fprintf(out, " --data-format=text, you can display a hex dump of the application data\n"); fprintf(out, " contents instead using --application-data-format=hexdump\n"); fprintf(out, "\n"); #if 0 /*@@@ not implemented yet */ fprintf(out, "--append\n"); fprintf(out, " Insert a metadata block from a file. The input file must be in the same\n"); fprintf(out, " format as generated with --list.\n"); fprintf(out, "\n"); fprintf(out, " --block-number=#\n"); fprintf(out, " Specify the insertion point (defaults to last block). The new block will\n"); fprintf(out, " be added after the given block number. This prevents the illegal insertion\n"); fprintf(out, " of a block before the first STREAMINFO block. You may not --append another\n"); fprintf(out, " STREAMINFO block.\n"); fprintf(out, "\n"); fprintf(out, " --from-file=filename\n"); fprintf(out, " Mandatory 'option' to specify the input file containing the block contents.\n"); fprintf(out, "\n"); fprintf(out, " --data-format=binary|text\n"); fprintf(out, " By default the block contents are assumed to be in binary format. You can\n"); fprintf(out, " override this by specifying --data-format=text\n"); fprintf(out, "\n"); #endif fprintf(out, "--remove\n"); fprintf(out, " Remove one or more metadata blocks from the metadata. Unless\n"); fprintf(out, " --dont-use-padding is specified, the blocks will be replaced with padding.\n"); fprintf(out, " You may not remove the STREAMINFO block.\n"); fprintf(out, "\n"); fprintf(out, " --block-number=#[,#[...]]\n"); fprintf(out, " --block-type=type[,type[...]]\n"); fprintf(out, " --except-block-type=type[,type[...]]\n"); fprintf(out, " See --list above for usage.\n"); fprintf(out, "\n"); fprintf(out, " NOTE: if both --block-number and --[except-]block-type are specified,\n"); fprintf(out, " the result is the logical AND of both arguments.\n"); fprintf(out, "\n"); fprintf(out, "--remove-all\n"); fprintf(out, " Remove all metadata blocks (except the STREAMINFO block) from the\n"); fprintf(out, " metadata. Unless --dont-use-padding is specified, the blocks will be\n"); fprintf(out, " replaced with padding.\n"); fprintf(out, "\n"); fprintf(out, "--merge-padding\n"); fprintf(out, " Merge adjacent PADDING blocks into single blocks.\n"); fprintf(out, "\n"); fprintf(out, "--sort-padding\n"); fprintf(out, " Move all PADDING blocks to the end of the metadata and merge them into a\n"); fprintf(out, " single block.\n"); return message? 1 : 0; } char *local_strdup(const char *source) { char *ret; FLAC__ASSERT(0 != source); if(0 == (ret = strdup(source))) die("out of memory during strdup()"); return ret; } FLAC__bool parse_md5(const char *src, FLAC__byte dest[16]) { unsigned i, d; char c; FLAC__ASSERT(0 != src); if(strlen(src) != 32) return false; /* strtoul() accepts negative numbers which we do not want, so we do it the hard way */ for(i = 0; i < 16; i++) { c = *src++; if(isdigit(c)) d = (unsigned)c - (unsigned)'0'; else if(c >= 'a' && c <= 'f') d = (unsigned)c - (unsigned)'a' + 10u; else if(c >= 'A' && c <= 'F') d = (unsigned)c - (unsigned)'A' + 10u; else return false; d <<= 4; c = *src++; if(isdigit(c)) d |= (unsigned)c - (unsigned)'0'; else if(c >= 'a' && c <= 'f') d |= (unsigned)c - (unsigned)'a' + 10u; else if(c >= 'A' && c <= 'F') d |= (unsigned)c - (unsigned)'A' + 10u; else return false; dest[i] = (FLAC__byte)d; } return true; } FLAC__bool parse_uint32(const char *src, FLAC__uint32 *dest) { FLAC__ASSERT(0 != src); if(strlen(src) == 0 || strspn(src, "0123456789") != strlen(src)) return false; *dest = strtoul(src, 0, 10); return true; } /* There's no stroull() in MSVC6 so we just write a specialized one */ static FLAC__uint64 local__strtoull(const char *src) { FLAC__uint64 ret = 0; int c; FLAC__ASSERT(0 != src); while(0 != (c = *src++)) { c -= '0'; if(c >= 0 && c <= 9) ret = (ret * 10) + c; else break; } return ret; } FLAC__bool parse_uint64(const char *src, FLAC__uint64 *dest) { FLAC__ASSERT(0 != src); if(strlen(src) == 0 || strspn(src, "0123456789") != strlen(src)) return false; *dest = local__strtoull(src); return true; } FLAC__bool parse_filename(const char *src, char **dest) { if(0 == src || strlen(src) == 0) return false; *dest = strdup(src); return true; } FLAC__bool parse_vorbis_comment_field(const char *field_ref, char **field, char **name, char **value, unsigned *length, const char **violation) { static const char * const violations[] = { "field name contains invalid character", "field contains no '=' character" }; char *p, *q, *s; if(0 != field) *field = local_strdup(field_ref); s = local_strdup(field_ref); if(0 == (p = strchr(s, '='))) { free(s); *violation = violations[1]; return false; } *p++ = '\0'; for(q = s; *q; q++) { if(*q < 0x20 || *q > 0x7d || *q == 0x3d) { free(s); *violation = violations[0]; return false; } } *name = local_strdup(s); *value = local_strdup(p); *length = strlen(p); free(s); return true; } static FLAC__bool parse_vorbis_comment_field_name(const char *field_ref, char **name, const char **violation) { static const char * const violations[] = { "field name contains invalid character" }; char *q, *s; s = local_strdup(field_ref); for(q = s; *q; q++) { if(*q < 0x20 || *q > 0x7d || *q == 0x3d) { free(s); *violation = violations[0]; return false; } } *name = s; return true; } FLAC__bool parse_add_padding(const char *in, unsigned *out) { *out = (unsigned)strtoul(in, 0, 10); return *out < (1u << FLAC__STREAM_METADATA_LENGTH_LEN); } FLAC__bool parse_block_number(const char *in, Argument_BlockNumber *out) { char *p, *q, *s, *end; long i; unsigned entry; if(*in == '\0') return false; s = local_strdup(in); /* first count the entries */ for(out->num_entries = 1, p = strchr(s, ','); p; out->num_entries++, p = strchr(++p, ',')) ; /* make space */ FLAC__ASSERT(out->num_entries > 0); if(0 == (out->entries = malloc(sizeof(unsigned) * out->num_entries))) die("out of memory allocating space for option list"); /* load 'em up */ entry = 0; q = s; while(q) { FLAC__ASSERT(entry < out->num_entries); if(0 != (p = strchr(q, ','))) *p++ = '\0'; if(!isdigit((int)(*q)) || (i = strtol(q, &end, 10)) < 0 || *end) { free(s); return false; } out->entries[entry++] = (unsigned)i; q = p; } FLAC__ASSERT(entry == out->num_entries); free(s); return true; } FLAC__bool parse_block_type(const char *in, Argument_BlockType *out) { char *p, *q, *r, *s; unsigned entry; if(*in == '\0') return false; s = local_strdup(in); /* first count the entries */ for(out->num_entries = 1, p = strchr(s, ','); p; out->num_entries++, p = strchr(++p, ',')) ; /* make space */ FLAC__ASSERT(out->num_entries > 0); if(0 == (out->entries = malloc(sizeof(Argument_BlockTypeEntry) * out->num_entries))) die("out of memory allocating space for option list"); /* load 'em up */ entry = 0; q = s; while(q) { FLAC__ASSERT(entry < out->num_entries); if(0 != (p = strchr(q, ','))) *p++ = 0; r = strchr(q, ':'); if(r) *r++ = '\0'; if(0 != r && 0 != strcmp(q, "APPLICATION")) { free(s); return false; } if(0 == strcmp(q, "STREAMINFO")) { out->entries[entry++].type = FLAC__METADATA_TYPE_STREAMINFO; } else if(0 == strcmp(q, "PADDING")) { out->entries[entry++].type = FLAC__METADATA_TYPE_PADDING; } else if(0 == strcmp(q, "APPLICATION")) { out->entries[entry].type = FLAC__METADATA_TYPE_APPLICATION; out->entries[entry].filter_application_by_id = (0 != r); if(0 != r) { if(strlen(r) == 4) { strcpy(out->entries[entry].application_id, r); } else if(strlen(r) == 10 && strncmp(r, "0x", 2) == 0 && strspn(r+2, "0123456789ABCDEFabcdef") == 8) { FLAC__uint32 x = strtoul(r+2, 0, 16); out->entries[entry].application_id[3] = (FLAC__byte)(x & 0xff); out->entries[entry].application_id[2] = (FLAC__byte)((x>>=8) & 0xff); out->entries[entry].application_id[1] = (FLAC__byte)((x>>=8) & 0xff); out->entries[entry].application_id[0] = (FLAC__byte)((x>>=8) & 0xff); } else { free(s); return false; } } entry++; } else if(0 == strcmp(q, "SEEKTABLE")) { out->entries[entry++].type = FLAC__METADATA_TYPE_SEEKTABLE; } else if(0 == strcmp(q, "VORBIS_COMMENT")) { out->entries[entry++].type = FLAC__METADATA_TYPE_VORBIS_COMMENT; } else { free(s); return false; } q = p; } FLAC__ASSERT(entry == out->num_entries); free(s); return true; } FLAC__bool parse_data_format(const char *in, Argument_DataFormat *out) { if(0 == strcmp(in, "binary")) out->is_binary = true; else if(0 == strcmp(in, "text")) out->is_binary = false; else return false; return true; } FLAC__bool parse_application_data_format(const char *in, FLAC__bool *out) { if(0 == strcmp(in, "hexdump")) *out = true; else if(0 == strcmp(in, "text")) *out = false; else return false; return true; } FLAC__bool do_operations(const CommandLineOptions *options) { FLAC__bool ok = true; if(options->show_long_help) { long_usage(0); } if(options->show_version) { show_version(); } else if(options->args.checks.num_major_ops > 0) { FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0); FLAC__ASSERT(options->args.checks.num_major_ops == 1); FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations); ok = do_major_operation(options); } else if(options->args.checks.num_shorthand_ops > 0) { FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations); ok = do_shorthand_operations(options); } return ok; } FLAC__bool do_major_operation(const CommandLineOptions *options) { unsigned i; FLAC__bool ok = true; /*@@@ to die after first error, v--- add '&& ok' here */ for(i = 0; i < options->num_files; i++) ok &= do_major_operation_on_file(options->filenames[i], options); return ok; } FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options) { FLAC__bool ok = true, needs_write = false; FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new(); if(0 == chain) die("out of memory allocating chain"); if(!FLAC__metadata_chain_read(chain, filename)) { fprintf(stderr, "%s: ERROR: reading metadata, status = \"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); return false; } switch(options->ops.operations[0].type) { case OP__LIST: ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options); break; case OP__APPEND: ok = do_major_operation__append(chain, options); needs_write = true; break; case OP__REMOVE: ok = do_major_operation__remove(chain, options); needs_write = true; break; case OP__REMOVE_ALL: ok = do_major_operation__remove_all(chain, options); needs_write = true; break; case OP__MERGE_PADDING: FLAC__metadata_chain_merge_padding(chain); needs_write = true; break; case OP__SORT_PADDING: FLAC__metadata_chain_sort_padding(chain); needs_write = true; break; default: FLAC__ASSERT(0); return false; } if(ok && needs_write) { if(options->use_padding) FLAC__metadata_chain_sort_padding(chain); ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime); if(!ok) fprintf(stderr, "%s: ERROR: writing FLAC file, error = %s\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); } FLAC__metadata_chain_delete(chain); return ok; } FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options) { FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); FLAC__StreamMetadata *block; FLAC__bool ok = true; unsigned block_number; if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); block_number = 0; do { block = FLAC__metadata_iterator_get_block(iterator); ok &= (0 != block); if(!ok) fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename); else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) write_metadata(filename, block, block_number, options->application_data_format_is_hexdump); block_number++; } while(ok && FLAC__metadata_iterator_next(iterator)); FLAC__metadata_iterator_delete(iterator); return ok; } FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options) { (void) chain, (void) options; fprintf(stderr, "ERROR: --append not implemented yet\n"); /*@@@*/ return false; } FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options) { FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); FLAC__bool ok = true; unsigned block_number; if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); block_number = 0; while(ok && FLAC__metadata_iterator_next(iterator)) { block_number++; if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) { ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding); if(options->use_padding) ok &= FLAC__metadata_iterator_next(iterator); } } FLAC__metadata_iterator_delete(iterator); return ok; } FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options) { FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); FLAC__bool ok = true; if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); while(ok && FLAC__metadata_iterator_next(iterator)) { ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding); if(options->use_padding) ok &= FLAC__metadata_iterator_next(iterator); } FLAC__metadata_iterator_delete(iterator); return ok; } FLAC__bool do_shorthand_operations(const CommandLineOptions *options) { unsigned i; FLAC__bool ok = true; /*@@@ to die after first error, v--- add '&& ok' here */ for(i = 0; i < options->num_files; i++) ok &= do_shorthand_operations_on_file(options->filenames[i], options); return ok; } FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options) { unsigned i; FLAC__bool ok = true, needs_write = false; FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new(); if(0 == chain) die("out of memory allocating chain"); if(!FLAC__metadata_chain_read(chain, filename)) { fprintf(stderr, "%s: ERROR: reading metadata, status = \"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); return false; } for(i = 0; i < options->ops.num_operations && ok; i++) ok &= do_shorthand_operation(options->prefix_with_filename? filename : 0, chain, &options->ops.operations[i], &needs_write, options->utf8_convert); if(ok) { if(options->use_padding) FLAC__metadata_chain_sort_padding(chain); ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime); if(!ok) fprintf(stderr, "%s: ERROR: writing FLAC file, error = %s\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); } FLAC__metadata_chain_delete(chain); return ok; } FLAC__bool do_shorthand_operation(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert) { FLAC__bool ok = true; switch(operation->type) { case OP__SHOW_MD5SUM: case OP__SHOW_MIN_BLOCKSIZE: case OP__SHOW_MAX_BLOCKSIZE: case OP__SHOW_MIN_FRAMESIZE: case OP__SHOW_MAX_FRAMESIZE: case OP__SHOW_SAMPLE_RATE: case OP__SHOW_CHANNELS: case OP__SHOW_BPS: case OP__SHOW_TOTAL_SAMPLES: case OP__SET_MD5SUM: case OP__SET_MIN_BLOCKSIZE: case OP__SET_MAX_BLOCKSIZE: case OP__SET_MIN_FRAMESIZE: case OP__SET_MAX_FRAMESIZE: case OP__SET_SAMPLE_RATE: case OP__SET_CHANNELS: case OP__SET_BPS: case OP__SET_TOTAL_SAMPLES: ok = do_shorthand_operation__streaminfo(filename, chain, operation, needs_write); break; case OP__SHOW_VC_VENDOR: case OP__SHOW_VC_FIELD: case OP__REMOVE_VC_ALL: case OP__REMOVE_VC_FIELD: case OP__REMOVE_VC_FIRSTFIELD: case OP__SET_VC_FIELD: case OP__IMPORT_VC_FROM: case OP__EXPORT_VC_TO: ok = do_shorthand_operation__vorbis_comment(filename, chain, operation, needs_write, !utf8_convert); break; case OP__ADD_PADDING: ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write); break; default: ok = false; FLAC__ASSERT(0); break; }; return ok; } FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write) { FLAC__StreamMetadata *padding = 0; FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); while(FLAC__metadata_iterator_next(iterator)) ; padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING); if(0 == padding) die("out of memory allocating PADDING block"); padding->length = length; if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) { fprintf(stderr, "%s: ERROR: adding new PADDING block to metadata, status =\"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); FLAC__metadata_object_delete(padding); return false; } *needs_write = true; return true; } FLAC__bool do_shorthand_operation__streaminfo(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write) { unsigned i; FLAC__bool ok = true; FLAC__StreamMetadata *block; FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); block = FLAC__metadata_iterator_get_block(iterator); FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_STREAMINFO); if(0 != filename) printf("%s:", filename); switch(operation->type) { case OP__SHOW_MD5SUM: for(i = 0; i < 16; i++) printf("%02x", block->data.stream_info.md5sum[i]); printf("\n"); break; case OP__SHOW_MIN_BLOCKSIZE: printf("%u\n", block->data.stream_info.min_blocksize); break; case OP__SHOW_MAX_BLOCKSIZE: printf("%u\n", block->data.stream_info.max_blocksize); break; case OP__SHOW_MIN_FRAMESIZE: printf("%u\n", block->data.stream_info.min_framesize); break; case OP__SHOW_MAX_FRAMESIZE: printf("%u\n", block->data.stream_info.max_framesize); break; case OP__SHOW_SAMPLE_RATE: printf("%u\n", block->data.stream_info.sample_rate); break; case OP__SHOW_CHANNELS: printf("%u\n", block->data.stream_info.channels); break; case OP__SHOW_BPS: printf("%u\n", block->data.stream_info.bits_per_sample); break; case OP__SHOW_TOTAL_SAMPLES: printf("%llu\n", block->data.stream_info.total_samples); break; case OP__SET_MD5SUM: memcpy(block->data.stream_info.md5sum, operation->argument.streaminfo_md5.value, 16); *needs_write = true; break; case OP__SET_MIN_BLOCKSIZE: block->data.stream_info.min_blocksize = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_MAX_BLOCKSIZE: block->data.stream_info.max_blocksize = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_MIN_FRAMESIZE: block->data.stream_info.min_framesize = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_MAX_FRAMESIZE: block->data.stream_info.max_framesize = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_SAMPLE_RATE: block->data.stream_info.sample_rate = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_CHANNELS: block->data.stream_info.channels = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_BPS: block->data.stream_info.bits_per_sample = operation->argument.streaminfo_uint32.value; *needs_write = true; break; case OP__SET_TOTAL_SAMPLES: block->data.stream_info.total_samples = operation->argument.streaminfo_uint64.value; *needs_write = true; break; default: ok = false; FLAC__ASSERT(0); break; }; FLAC__metadata_iterator_delete(iterator); return ok; } FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw) { FLAC__bool ok = true, found_vc_block = false; FLAC__StreamMetadata *block = 0; FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new(); if(0 == iterator) die("out of memory allocating iterator"); FLAC__metadata_iterator_init(iterator, chain); do { block = FLAC__metadata_iterator_get_block(iterator); if(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) found_vc_block = true; } while(!found_vc_block && FLAC__metadata_iterator_next(iterator)); /* create a new block if necessary */ if(!found_vc_block && operation->type == OP__SET_VC_FIELD) { block = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT); if(0 == block) die("out of memory allocating VORBIS_COMMENT block"); while(FLAC__metadata_iterator_next(iterator)) ; if(!FLAC__metadata_iterator_insert_block_after(iterator, block)) { fprintf(stderr, "%s: ERROR: adding new VORBIS_COMMENT block to metadata, status =\"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]); return false; } /* iterator is left pointing to new block */ FLAC__ASSERT(FLAC__metadata_iterator_get_block(iterator) == block); } FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); switch(operation->type) { case OP__SHOW_VC_VENDOR: write_vc_field(filename, &block->data.vorbis_comment.vendor_string, raw, stdout); break; case OP__SHOW_VC_FIELD: write_vc_fields(filename, operation->argument.vc_field_name.value, block->data.vorbis_comment.comments, block->data.vorbis_comment.num_comments, raw, stdout); break; case OP__REMOVE_VC_ALL: ok = remove_vc_all(filename, block, needs_write); break; case OP__REMOVE_VC_FIELD: ok = remove_vc_field(block, operation->argument.vc_field_name.value, needs_write); break; case OP__REMOVE_VC_FIRSTFIELD: ok = remove_vc_firstfield(filename, block, operation->argument.vc_field_name.value, needs_write); break; case OP__SET_VC_FIELD: ok = set_vc_field(filename, block, &operation->argument.vc_field, needs_write, raw); break; case OP__IMPORT_VC_FROM: ok = import_vc_from(filename, block, &operation->argument.vc_filename, needs_write, raw); break; case OP__EXPORT_VC_TO: ok = export_vc_to(filename, block, &operation->argument.vc_filename, raw); break; default: ok = false; FLAC__ASSERT(0); break; }; return ok; } FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number) { unsigned i, j; FLAC__bool matches_number = false, matches_type = false; FLAC__bool has_block_number_arg = false; for(i = 0; i < options->args.num_arguments; i++) { if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) { for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) { if(options->args.arguments[i].value.block_type.entries[j].type == block->type) { if(block->type != FLAC__METADATA_TYPE_APPLICATION || !options->args.arguments[i].value.block_type.entries[j].filter_application_by_id || 0 == memcmp(options->args.arguments[i].value.block_type.entries[j].application_id, block->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)) matches_type = true; } } } else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) { has_block_number_arg = true; for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) { if(options->args.arguments[i].value.block_number.entries[j] == block_number) matches_number = true; } } } if(!has_block_number_arg) matches_number = true; if(options->args.checks.has_block_type) { FLAC__ASSERT(!options->args.checks.has_except_block_type); } else if(options->args.checks.has_except_block_type) matches_type = !matches_type; else matches_type = true; return matches_number && matches_type; } void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool hexdump_application) { unsigned i; /*@@@ yuck, should do this with a varargs function or something: */ #define PPR if(filename)printf("%s:",filename); PPR; printf("METADATA block #%u\n", block_number); PPR; printf(" type: %u (%s)\n", (unsigned)block->type, block->type<=FLAC__METADATA_TYPE_VORBIS_COMMENT? FLAC__MetadataTypeString[block->type] : "UNKNOWN"); PPR; printf(" is last: %s\n", block->is_last? "true":"false"); PPR; printf(" length: %u\n", block->length); switch(block->type) { case FLAC__METADATA_TYPE_STREAMINFO: PPR; printf(" minumum blocksize: %u samples\n", block->data.stream_info.min_blocksize); PPR; printf(" maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize); PPR; printf(" minimum framesize: %u bytes\n", block->data.stream_info.min_framesize); PPR; printf(" maximum framesize: %u bytes\n", block->data.stream_info.max_framesize); PPR; printf(" sample_rate: %u Hz\n", block->data.stream_info.sample_rate); PPR; printf(" channels: %u\n", block->data.stream_info.channels); PPR; printf(" bits-per-sample: %u\n", block->data.stream_info.bits_per_sample); PPR; printf(" total samples: %llu\n", block->data.stream_info.total_samples); PPR; printf(" MD5 signature: "); for(i = 0; i < 16; i++) { printf("%02x", (unsigned)block->data.stream_info.md5sum[i]); } printf("\n"); break; case FLAC__METADATA_TYPE_PADDING: /* nothing to print */ break; case FLAC__METADATA_TYPE_APPLICATION: PPR; printf(" application ID: "); for(i = 0; i < 4; i++) { PPR; printf("%02x", block->data.application.id[i]); } PPR; printf("\n"); PPR; printf(" data contents:\n"); if(0 != block->data.application.data) { if(hexdump_application) hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, " "); else (void) fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout); } break; case FLAC__METADATA_TYPE_SEEKTABLE: PPR; printf(" seek points: %u\n", block->data.seek_table.num_points); for(i = 0; i < block->data.seek_table.num_points; i++) { if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) { PPR; printf(" point %d: sample_number=%llu, stream_offset=%llu, frame_samples=%u\n", i, block->data.seek_table.points[i].sample_number, block->data.seek_table.points[i].stream_offset, block->data.seek_table.points[i].frame_samples); } else { PPR; printf(" point %d: PLACEHOLDER\n", i); } } break; case FLAC__METADATA_TYPE_VORBIS_COMMENT: PPR; printf(" vendor string: "); if(0 != block->data.vorbis_comment.vendor_string.entry) fwrite(block->data.vorbis_comment.vendor_string.entry, 1, block->data.vorbis_comment.vendor_string.length, stdout); printf("\n"); PPR; printf(" comments: %u\n", block->data.vorbis_comment.num_comments); for(i = 0; i < block->data.vorbis_comment.num_comments; i++) { PPR; printf(" comment[%u]: ", i); fwrite(block->data.vorbis_comment.comments[i].entry, 1, block->data.vorbis_comment.comments[i].length, stdout); printf("\n"); } break; default: PPR; printf("SKIPPING block of unknown type\n"); break; } #undef PPR } void write_vc_field(const char *filename, const FLAC__StreamMetadata_VorbisComment_Entry *entry, FLAC__bool raw, FILE *f) { if(0 != entry->entry) { char *converted; if(filename) fprintf(f, "%s:", filename); if(!raw && utf8_decode(entry->entry, &converted) >= 0) { (void) fwrite(converted, 1, strlen(converted), f); free(converted); } else { (void) fwrite(entry->entry, 1, entry->length, f); } } fprintf(f, "\n"); } void write_vc_fields(const char *filename, const char *field_name, const FLAC__StreamMetadata_VorbisComment_Entry entry[], unsigned num_entries, FLAC__bool raw, FILE *f) { unsigned i; const unsigned field_name_length = (0 != field_name)? strlen(field_name) : 0; for(i = 0; i < num_entries; i++) { if(0 == field_name || field_name_matches_entry(field_name, field_name_length, entry + i)) write_vc_field(filename, entry + i, raw, f); } } FLAC__bool remove_vc_all(const char *filename, FLAC__StreamMetadata *block, FLAC__bool *needs_write) { FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); FLAC__ASSERT(0 != needs_write); if(0 != block->data.vorbis_comment.comments) { FLAC__ASSERT(block->data.vorbis_comment.num_comments > 0); if(!FLAC__metadata_object_vorbiscomment_resize_comments(block, 0)) { fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename); return false; } *needs_write = true; } else { FLAC__ASSERT(block->data.vorbis_comment.num_comments == 0); } return true; } FLAC__bool remove_vc_field(FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write) { FLAC__bool ok = true; const unsigned field_name_length = strlen(field_name); int i; FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); FLAC__ASSERT(0 != needs_write); /* must delete from end to start otherwise it will interfere with our iteration */ for(i = (int)block->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) { if(field_name_matches_entry(field_name, field_name_length, block->data.vorbis_comment.comments + i)) { ok &= FLAC__metadata_object_vorbiscomment_delete_comment(block, (unsigned)i); if(ok) *needs_write = true; } } return ok; } FLAC__bool remove_vc_firstfield(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write) { const unsigned field_name_length = strlen(field_name); unsigned i; FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); FLAC__ASSERT(0 != needs_write); for(i = 0; i < block->data.vorbis_comment.num_comments; i++) { if(field_name_matches_entry(field_name, field_name_length, block->data.vorbis_comment.comments + i)) { if(!FLAC__metadata_object_vorbiscomment_delete_comment(block, (unsigned)i)) { fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename); return false; } else *needs_write = true; break; } } return true; } FLAC__bool set_vc_field(const char *filename, FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw) { FLAC__StreamMetadata_VorbisComment_Entry entry; char *converted; FLAC__bool needs_free = false; FLAC__ASSERT(0 != block); FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); FLAC__ASSERT(0 != field); FLAC__ASSERT(0 != needs_write); if(raw) { entry.entry = field->field; } else if(utf8_encode(field->field, &converted) >= 0) { entry.entry = converted; needs_free = true; } else { fprintf(stderr, "%s: ERROR: couldn't convert comment to UTF-8\n", filename); return false; } entry.length = strlen(entry.entry); if(!FLAC__metadata_object_vorbiscomment_insert_comment(block, block->data.vorbis_comment.num_comments, entry, /*copy=*/true)) { if(needs_free) free(converted); fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename); return false; } else { *needs_write = true; if(needs_free) free(converted); return true; } } FLAC__bool import_vc_from(const char *filename, FLAC__StreamMetadata *block, const Argument_VcFilename *vc_filename, FLAC__bool *needs_write, FLAC__bool raw) { FILE *f; char line[65536]; FLAC__bool ret; if(0 == vc_filename->value || strlen(vc_filename->value) == 0) { fprintf(stderr, "%s: ERROR: empty import file name\n", filename); return false; } if(0 == strcmp(vc_filename->value, "-")) f = stdin; else f = fopen(vc_filename->value, "r"); if(0 == f) { fprintf(stderr, "%s: ERROR: can't open import file %s\n", filename, vc_filename->value); return false; } ret = true; while(ret && !feof(f)) { fgets(line, sizeof(line), f); if(!feof(f)) { char *p = strchr(line, '\n'); if(0 == p) { fprintf(stderr, "%s: ERROR: line too long, aborting\n", vc_filename->value); ret = false; } else { const char *violation; Argument_VcField field; *p = '\0'; memset(&field, 0, sizeof(Argument_VcField)); if(!parse_vorbis_comment_field(line, &field.field, &field.field_name, &field.field_value, &field.field_value_length, &violation)) { FLAC__ASSERT(0 != violation); fprintf(stderr, "%s: ERROR: malformed vorbis comment field \"%s\",\n %s\n", vc_filename->value, line, violation); ret = false; } else { ret = set_vc_field(filename, block, &field, needs_write, raw); } if(0 != field.field) free(field.field); if(0 != field.field_name) free(field.field_name); if(0 != field.field_value) free(field.field_value); } } }; if(f != stdin) fclose(f); return ret; } FLAC__bool export_vc_to(const char *filename, FLAC__StreamMetadata *block, const Argument_VcFilename *vc_filename, FLAC__bool raw) { FILE *f; FLAC__bool ret; if(0 == vc_filename->value || strlen(vc_filename->value) == 0) { fprintf(stderr, "%s: ERROR: empty export file name\n", filename); return false; } if(0 == strcmp(vc_filename->value, "-")) f = stdout; else f = fopen(vc_filename->value, "w"); if(0 == f) { fprintf(stderr, "%s: ERROR: can't open export file %s\n", filename, vc_filename->value); return false; } ret = true; write_vc_fields(0, 0, block->data.vorbis_comment.comments, block->data.vorbis_comment.num_comments, raw, f); if(f != stdout) fclose(f); return ret; } FLAC__bool field_name_matches_entry(const char *field_name, unsigned field_name_length, const FLAC__StreamMetadata_VorbisComment_Entry *entry) { const FLAC__byte *eq = memchr(entry->entry, '=', entry->length); #if defined _MSC_VER || defined __MINGW32__ #define FLAC__STRNCASECMP strnicmp #else #define FLAC__STRNCASECMP strncasecmp #endif return (0 != eq && (unsigned)(eq-entry->entry) == field_name_length && 0 == FLAC__STRNCASECMP(field_name, entry->entry, field_name_length)); #undef FLAC__STRNCASECMP } void hexdump(const char *filename, const FLAC__byte *buf, unsigned bytes, const char *indent) { unsigned i, left = bytes; const FLAC__byte *b = buf; for(i = 0; i < bytes; i += 16) { printf("%s%s%s%08X: " "%02X %02X %02X %02X %02X %02X %02X %02X " "%02X %02X %02X %02X %02X %02X %02X %02X " "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n", filename? filename:"", filename? ":":"", indent, i, left > 0? (unsigned char)b[ 0] : 0, left > 1? (unsigned char)b[ 1] : 0, left > 2? (unsigned char)b[ 2] : 0, left > 3? (unsigned char)b[ 3] : 0, left > 4? (unsigned char)b[ 4] : 0, left > 5? (unsigned char)b[ 5] : 0, left > 6? (unsigned char)b[ 6] : 0, left > 7? (unsigned char)b[ 7] : 0, left > 8? (unsigned char)b[ 8] : 0, left > 9? (unsigned char)b[ 9] : 0, left > 10? (unsigned char)b[10] : 0, left > 11? (unsigned char)b[11] : 0, left > 12? (unsigned char)b[12] : 0, left > 13? (unsigned char)b[13] : 0, left > 14? (unsigned char)b[14] : 0, left > 15? (unsigned char)b[15] : 0, (left > 0) ? (isprint(b[ 0]) ? b[ 0] : '.') : ' ', (left > 1) ? (isprint(b[ 1]) ? b[ 1] : '.') : ' ', (left > 2) ? (isprint(b[ 2]) ? b[ 2] : '.') : ' ', (left > 3) ? (isprint(b[ 3]) ? b[ 3] : '.') : ' ', (left > 4) ? (isprint(b[ 4]) ? b[ 4] : '.') : ' ', (left > 5) ? (isprint(b[ 5]) ? b[ 5] : '.') : ' ', (left > 6) ? (isprint(b[ 6]) ? b[ 6] : '.') : ' ', (left > 7) ? (isprint(b[ 7]) ? b[ 7] : '.') : ' ', (left > 8) ? (isprint(b[ 8]) ? b[ 8] : '.') : ' ', (left > 9) ? (isprint(b[ 9]) ? b[ 9] : '.') : ' ', (left > 10) ? (isprint(b[10]) ? b[10] : '.') : ' ', (left > 11) ? (isprint(b[11]) ? b[11] : '.') : ' ', (left > 12) ? (isprint(b[12]) ? b[12] : '.') : ' ', (left > 13) ? (isprint(b[13]) ? b[13] : '.') : ' ', (left > 14) ? (isprint(b[14]) ? b[14] : '.') : ' ', (left > 15) ? (isprint(b[15]) ? b[15] : '.') : ' ' ); left -= 16; b += 16; } } void undocumented_warning(const char *opt) { fprintf(stderr, "WARNING: undocmented option --%s should be used with caution,\n only for repairing a damaged STREAMINFO block\n", opt); }